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SVG_Lib_Init_Func
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SVG_Lib_Free_Func
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SVG_Lib_Render_Func
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SVG_Lib_Preset_Slot_Func
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SVG_RendererHooks
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FT_SVG_DocumentRec
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FT_SVG_Document
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#format-specific-api">Format-Specific API</a> » OpenType SVG Fonts</p>
<hr />
<h1 id="opentype-svg-fonts">OpenType SVG Fonts<a class="headerlink" href="#opentype-svg-fonts" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section describes the four hooks necessary to render SVG ‘documents’ that are contained in an OpenType font's ‘SVG ’ table.</p>
<p>For more information on the implementation, see our standard hooks based on ‘librsvg’ in the <a href="https://gitlab.freedesktop.org/freetype/freetype-demos">FreeType Demo Programs</a> repository.</p>
<h2 id="svg_lib_init_func">SVG_Lib_Init_Func<a class="headerlink" href="#svg_lib_init_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-basic_types.html#ft_error">FT_Error</a>
(*<b>SVG_Lib_Init_Func</b>)( <a href="ft2-basic_types.html#ft_pointer">FT_Pointer</a> *data_pointer );
</code></pre></div>
<p>A callback that is called when the first OT-SVG glyph is rendered in the lifetime of an <code><a href="ft2-base_interface.html#ft_library">FT_Library</a></code> object. In a typical implementation, one would want to allocate a structure and point the <code>data_pointer</code> to it and perform any library initializations that might be needed.</p>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="data_pointer">data_pointer</td><td class="desc">
<p>The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. <code>data_pointer</code> is essentially a pointer to that pointer such that it can be written to as well as read from.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="svg_lib_free_func">SVG_Lib_Free_Func<a class="headerlink" href="#svg_lib_free_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>
(*<b>SVG_Lib_Free_Func</b>)( <a href="ft2-basic_types.html#ft_pointer">FT_Pointer</a> *data_pointer );
</code></pre></div>
<p>A callback that is called when the <code>ot-svg</code> module is being freed. It is only called if the init hook was called earlier. This means that neither the init nor the free hook is called if no OT-SVG glyph is rendered.</p>
<p>In a typical implementation, one would want to free any state structure that was allocated in the init hook and perform any library-related closure that might be needed.</p>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="data_pointer">data_pointer</td><td class="desc">
<p>The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. <code>data_pointer</code> is essentially a pointer to that pointer such that it can be written to as well as read from.</p>
</td></tr>
</table>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="svg_lib_render_func">SVG_Lib_Render_Func<a class="headerlink" href="#svg_lib_render_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-basic_types.html#ft_error">FT_Error</a>
(*<b>SVG_Lib_Render_Func</b>)( <a href="ft2-base_interface.html#ft_glyphslot">FT_GlyphSlot</a> slot,
<a href="ft2-basic_types.html#ft_pointer">FT_Pointer</a> *data_pointer );
</code></pre></div>
<p>A callback that is called to render an OT-SVG glyph. This callback hook is called right after the preset hook <code><a href="ft2-svg_fonts.html#svg_lib_preset_slot_func">SVG_Lib_Preset_Slot_Func</a></code> has been called with <code>cache</code> set to <code>TRUE</code>. The data necessary to render is available through the handle <code><a href="ft2-svg_fonts.html#ft_svg_document">FT_SVG_Document</a></code>, which is set in the <code>other</code> field of <code><a href="ft2-base_interface.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code>.</p>
<p>The render hook is expected to render the SVG glyph to the bitmap buffer that is allocated already at <code>slot->bitmap.buffer</code>. It also sets the <code>num_grays</code> value as well as <code>slot->format</code>.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="slot">slot</td><td class="desc">
<p>The slot to render.</p>
</td></tr>
</table>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="data_pointer">data_pointer</td><td class="desc">
<p>The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. <code>data_pointer</code> is essentially a pointer to that pointer such that it can be written to as well as read from.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="svg_lib_preset_slot_func">SVG_Lib_Preset_Slot_Func<a class="headerlink" href="#svg_lib_preset_slot_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-basic_types.html#ft_error">FT_Error</a>
(*<b>SVG_Lib_Preset_Slot_Func</b>)( <a href="ft2-base_interface.html#ft_glyphslot">FT_GlyphSlot</a> slot,
<a href="ft2-basic_types.html#ft_bool">FT_Bool</a> cache,
<a href="ft2-basic_types.html#ft_pointer">FT_Pointer</a> *state );
</code></pre></div>
<p>A callback that is called to preset the glyph slot. It is called from two places.</p>
<ol>
<li>
<p>When <code>FT_Load_Glyph</code> needs to preset the glyph slot.</p>
</li>
<li>
<p>Right before the <code>svg</code> module calls the render callback hook.</p>
</li>
</ol>
<p>When it is the former, the argument <code>cache</code> is set to <code>FALSE</code>. When it is the latter, the argument <code>cache</code> is set to <code>TRUE</code>. This distinction has been made because many calculations that are necessary for presetting a glyph slot are the same needed later for the render callback hook. Thus, if <code>cache</code> is <code>TRUE</code>, the hook can <em>cache</em> those calculations in a memory block referenced by the state pointer.</p>
<p>This hook is expected to preset the slot by setting parameters such as <code>bitmap_left</code>, <code>bitmap_top</code>, <code>width</code>, <code>rows</code>, <code>pitch</code>, and <code>pixel_mode</code>. It is also expected to set all the metrics for the slot including the vertical advance if it is not already set. Typically, fonts have horizontal advances but not vertical ones. If those are available, they had already been set, otherwise they have to be estimated and set manually. The hook must take into account the transformations that have been set, and translate the transformation matrices into the SVG coordinate system, as the original matrix is intended for the TTF/CFF coordinate system.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="slot">slot</td><td class="desc">
<p>The glyph slot that has the SVG document loaded.</p>
</td></tr>
<tr><td class="val" id="cache">cache</td><td class="desc">
<p>See description.</p>
</td></tr>
</table>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="data_pointer">data_pointer</td><td class="desc">
<p>The SVG rendering module stores a pointer variable that can be used by clients to store any data that needs to be shared across different hooks. <code>data_pointer</code> is essentially a pointer to that pointer such that it can be written to as well as read from.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="svg_rendererhooks">SVG_RendererHooks<a class="headerlink" href="#svg_rendererhooks" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> SVG_RendererHooks_
{
<a href="ft2-svg_fonts.html#svg_lib_init_func">SVG_Lib_Init_Func</a> init_svg;
<a href="ft2-svg_fonts.html#svg_lib_free_func">SVG_Lib_Free_Func</a> free_svg;
<a href="ft2-svg_fonts.html#svg_lib_render_func">SVG_Lib_Render_Func</a> render_svg;
<a href="ft2-svg_fonts.html#svg_lib_preset_slot_func">SVG_Lib_Preset_Slot_Func</a> preset_slot;
} <b>SVG_RendererHooks</b>;
</code></pre></div>
<p>A structure that stores the four hooks needed to render OT-SVG glyphs properly. The structure is publicly used to set the hooks via the <code><a href="ft2-properties.html#svg-hooks">svg-hooks</a></code> driver property.</p>
<p>The behavior of each hook is described in its documentation. One thing to note is that the preset hook and the render hook often need to do the same operations; therefore, it's better to cache the intermediate data in a state structure to avoid calculating it twice. For example, in the preset hook one can draw the glyph on a recorder surface and later create a bitmap surface from it in the render hook.</p>
<p>All four hooks must be non-NULL.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="init_svg">init_svg</td><td class="desc">
<p>The initialization hook.</p>
</td></tr>
<tr><td class="val" id="free_svg">free_svg</td><td class="desc">
<p>The cleanup hook.</p>
</td></tr>
<tr><td class="val" id="render_hook">render_hook</td><td class="desc">
<p>The render hook.</p>
</td></tr>
<tr><td class="val" id="preset_slot">preset_slot</td><td class="desc">
<p>The preset hook.</p>
</td></tr>
</table>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="ft_svg_documentrec">FT_SVG_DocumentRec<a class="headerlink" href="#ft_svg_documentrec" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_SVG_DocumentRec_
{
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a>* svg_document;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> svg_document_length;
<a href="ft2-base_interface.html#ft_size_metrics">FT_Size_Metrics</a> metrics;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> units_per_EM;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> start_glyph_id;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> end_glyph_id;
<a href="ft2-basic_types.html#ft_matrix">FT_Matrix</a> transform;
<a href="ft2-basic_types.html#ft_vector">FT_Vector</a> delta;
} <b>FT_SVG_DocumentRec</b>;
</code></pre></div>
<p>A structure that models one SVG document.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="svg_document">svg_document</td><td class="desc">
<p>A pointer to the SVG document.</p>
</td></tr>
<tr><td class="val" id="svg_document_length">svg_document_length</td><td class="desc">
<p>The length of <code>svg_document</code>.</p>
</td></tr>
<tr><td class="val" id="metrics">metrics</td><td class="desc">
<p>A metrics object storing the size information.</p>
</td></tr>
<tr><td class="val" id="units_per_em">units_per_EM</td><td class="desc">
<p>The size of the EM square.</p>
</td></tr>
<tr><td class="val" id="start_glyph_id">start_glyph_id</td><td class="desc">
<p>The first glyph ID in the glyph range covered by this document.</p>
</td></tr>
<tr><td class="val" id="end_glyph_id">end_glyph_id</td><td class="desc">
<p>The last glyph ID in the glyph range covered by this document.</p>
</td></tr>
<tr><td class="val" id="transform">transform</td><td class="desc">
<p>A 2x2 transformation matrix to apply to the glyph while rendering it.</p>
</td></tr>
<tr><td class="val" id="delta">delta</td><td class="desc">
<p>The translation to apply to the glyph while rendering.</p>
</td></tr>
</table>
<h4>note</h4>
<p>When an <code><a href="ft2-base_interface.html#ft_glyphslot">FT_GlyphSlot</a></code> object <code>slot</code> is passed down to a renderer, the renderer can only access the <code>metrics</code> and <code>units_per_EM</code> fields via <code>slot->face</code>. However, when <code><a href="ft2-glyph_management.html#ft_glyph_to_bitmap">FT_Glyph_To_Bitmap</a></code> sets up a dummy object, it has no way to set a <code>face</code> object. Thus, metrics information and <code>units_per_EM</code> (which is necessary for OT-SVG) has to be stored separately.</p>
<h4>since</h4>
<p>2.12</p>
<hr>
<h2 id="ft_svg_document">FT_SVG_Document<a class="headerlink" href="#ft_svg_document" title="Permanent link">¶</a></h2>
<p>Defined in FT_OTSVG_H (freetype/otsvg.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_SVG_DocumentRec_* <b>FT_SVG_Document</b>;
FT_END_HEADER
#<span class="keyword">endif</span> /* OTSVG_H_ */
/* END */
</code></pre></div>
<p>A handle to an <code><a href="ft2-svg_fonts.html#ft_svg_documentrec">FT_SVG_DocumentRec</a></code> object.</p>
<h4>since</h4>
<p>2.12</p>
<hr>
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System Interface
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FT_Memory
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FT_Alloc_Func
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FT_Free_Func
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FT_Realloc_Func
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FT_MemoryRec
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FT_Stream
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FT_StreamDesc
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FT_Stream_IoFunc
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FT_Stream_CloseFunc
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FT_StreamRec
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FT_Memory
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FT_Realloc_Func
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FT_MemoryRec
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FT_Stream
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FT_StreamDesc
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FT_Stream_CloseFunc
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<article class="md-content__inner md-typeset">
<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#support-api">Support API</a> » System Interface</p>
<hr />
<h1 id="system-interface">System Interface<a class="headerlink" href="#system-interface" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section contains various definitions related to memory management and i/o access. You need to understand this information if you want to use a custom memory manager or you own i/o streams.</p>
<h2 id="ft_memory">FT_Memory<a class="headerlink" href="#ft_memory" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_MemoryRec_* <b>FT_Memory</b>;
</code></pre></div>
<p>A handle to a given memory manager object, defined with an <code><a href="ft2-system_interface.html#ft_memoryrec">FT_MemoryRec</a></code> structure.</p>
<hr>
<h2 id="ft_alloc_func">FT_Alloc_Func<a class="headerlink" href="#ft_alloc_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>*
(*<b>FT_Alloc_Func</b>)( <a href="ft2-system_interface.html#ft_memory">FT_Memory</a> memory,
<span class="keyword">long</span> size );
</code></pre></div>
<p>A function used to allocate <code>size</code> bytes from <code>memory</code>.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="memory">memory</td><td class="desc">
<p>A handle to the source memory manager.</p>
</td></tr>
<tr><td class="val" id="size">size</td><td class="desc">
<p>The size in bytes to allocate.</p>
</td></tr>
</table>
<h4>return</h4>
<p>Address of new memory block. 0 in case of failure.</p>
<hr>
<h2 id="ft_free_func">FT_Free_Func<a class="headerlink" href="#ft_free_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>
(*<b>FT_Free_Func</b>)( <a href="ft2-system_interface.html#ft_memory">FT_Memory</a> memory,
<span class="keyword">void</span>* block );
</code></pre></div>
<p>A function used to release a given block of memory.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="memory">memory</td><td class="desc">
<p>A handle to the source memory manager.</p>
</td></tr>
<tr><td class="val" id="block">block</td><td class="desc">
<p>The address of the target memory block.</p>
</td></tr>
</table>
<hr>
<h2 id="ft_realloc_func">FT_Realloc_Func<a class="headerlink" href="#ft_realloc_func" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>*
(*<b>FT_Realloc_Func</b>)( <a href="ft2-system_interface.html#ft_memory">FT_Memory</a> memory,
<span class="keyword">long</span> cur_size,
<span class="keyword">long</span> new_size,
<span class="keyword">void</span>* block );
</code></pre></div>
<p>A function used to re-allocate a given block of memory.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="memory">memory</td><td class="desc">
<p>A handle to the source memory manager.</p>
</td></tr>
<tr><td class="val" id="cur_size">cur_size</td><td class="desc">
<p>The block's current size in bytes.</p>
</td></tr>
<tr><td class="val" id="new_size">new_size</td><td class="desc">
<p>The block's requested new size.</p>
</td></tr>
<tr><td class="val" id="block">block</td><td class="desc">
<p>The block's current address.</p>
</td></tr>
</table>
<h4>return</h4>
<p>New block address. 0 in case of memory shortage.</p>
<h4>note</h4>
<p>In case of error, the old block must still be available.</p>
<hr>
<h2 id="ft_memoryrec">FT_MemoryRec<a class="headerlink" href="#ft_memoryrec" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">struct</span> FT_MemoryRec_
{
<span class="keyword">void</span>* user;
<a href="ft2-system_interface.html#ft_alloc_func">FT_Alloc_Func</a> alloc;
<a href="ft2-system_interface.html#ft_free_func">FT_Free_Func</a> free;
<a href="ft2-system_interface.html#ft_realloc_func">FT_Realloc_Func</a> realloc;
};
</code></pre></div>
<p>A structure used to describe a given memory manager to FreeType 2.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="user">user</td><td class="desc">
<p>A generic typeless pointer for user data.</p>
</td></tr>
<tr><td class="val" id="alloc">alloc</td><td class="desc">
<p>A pointer type to an allocation function.</p>
</td></tr>
<tr><td class="val" id="free">free</td><td class="desc">
<p>A pointer type to an memory freeing function.</p>
</td></tr>
<tr><td class="val" id="realloc">realloc</td><td class="desc">
<p>A pointer type to a reallocation function.</p>
</td></tr>
</table>
<hr>
<h2 id="ft_stream">FT_Stream<a class="headerlink" href="#ft_stream" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_StreamRec_* <b>FT_Stream</b>;
</code></pre></div>
<p>A handle to an input stream.</p>
<h4>also</h4>
<p>See <code><a href="ft2-system_interface.html#ft_streamrec">FT_StreamRec</a></code> for the publicly accessible fields of a given stream object.</p>
<hr>
<h2 id="ft_streamdesc">FT_StreamDesc<a class="headerlink" href="#ft_streamdesc" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">union</span> FT_StreamDesc_
{
<span class="keyword">long</span> value;
<span class="keyword">void</span>* pointer;
} <b>FT_StreamDesc</b>;
</code></pre></div>
<p>A union type used to store either a long or a pointer. This is used to store a file descriptor or a <code>FILE*</code> in an input stream.</p>
<hr>
<h2 id="ft_stream_iofunc">FT_Stream_IoFunc<a class="headerlink" href="#ft_stream_iofunc" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">long</span>
(*<b>FT_Stream_IoFunc</b>)( <a href="ft2-system_interface.html#ft_stream">FT_Stream</a> stream,
<span class="keyword">unsigned</span> <span class="keyword">long</span> offset,
<span class="keyword">unsigned</span> <span class="keyword">char</span>* buffer,
<span class="keyword">unsigned</span> <span class="keyword">long</span> count );
</code></pre></div>
<p>A function used to seek and read data from a given input stream.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="stream">stream</td><td class="desc">
<p>A handle to the source stream.</p>
</td></tr>
<tr><td class="val" id="offset">offset</td><td class="desc">
<p>The offset of read in stream (always from start).</p>
</td></tr>
<tr><td class="val" id="buffer">buffer</td><td class="desc">
<p>The address of the read buffer.</p>
</td></tr>
<tr><td class="val" id="count">count</td><td class="desc">
<p>The number of bytes to read from the stream.</p>
</td></tr>
</table>
<h4>return</h4>
<p>The number of bytes effectively read by the stream.</p>
<h4>note</h4>
<p>This function might be called to perform a seek or skip operation with a <code>count</code> of 0. A non-zero return value then indicates an error.</p>
<hr>
<h2 id="ft_stream_closefunc">FT_Stream_CloseFunc<a class="headerlink" href="#ft_stream_closefunc" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">void</span>
(*<b>FT_Stream_CloseFunc</b>)( <a href="ft2-system_interface.html#ft_stream">FT_Stream</a> stream );
</code></pre></div>
<p>A function used to close a given input stream.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="stream">stream</td><td class="desc">
<p>A handle to the target stream.</p>
</td></tr>
</table>
<hr>
<h2 id="ft_streamrec">FT_StreamRec<a class="headerlink" href="#ft_streamrec" title="Permanent link">¶</a></h2>
<p>Defined in FT_SYSTEM_H (freetype/ftsystem.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_StreamRec_
{
<span class="keyword">unsigned</span> <span class="keyword">char</span>* base;
<span class="keyword">unsigned</span> <span class="keyword">long</span> size;
<span class="keyword">unsigned</span> <span class="keyword">long</span> pos;
<a href="ft2-system_interface.html#ft_streamdesc">FT_StreamDesc</a> descriptor;
<a href="ft2-system_interface.html#ft_streamdesc">FT_StreamDesc</a> pathname;
<a href="ft2-system_interface.html#ft_stream_iofunc">FT_Stream_IoFunc</a> read;
<a href="ft2-system_interface.html#ft_stream_closefunc">FT_Stream_CloseFunc</a> close;
<a href="ft2-system_interface.html#ft_memory">FT_Memory</a> memory;
<span class="keyword">unsigned</span> <span class="keyword">char</span>* cursor;
<span class="keyword">unsigned</span> <span class="keyword">char</span>* limit;
} <b>FT_StreamRec</b>;
</code></pre></div>
<p>A structure used to describe an input stream.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="base">base</td><td class="desc">
<p>For memory-based streams, this is the address of the first stream byte in memory. This field should always be set to <code>NULL</code> for disk-based streams.</p>
</td></tr>
<tr><td class="val" id="size">size</td><td class="desc">
<p>The stream size in bytes.</p>
<p>In case of compressed streams where the size is unknown before actually doing the decompression, the value is set to 0x7FFFFFFF. (Note that this size value can occur for normal streams also; it is thus just a hint.)</p>
</td></tr>
<tr><td class="val" id="pos">pos</td><td class="desc">
<p>The current position within the stream.</p>
</td></tr>
<tr><td class="val" id="descriptor">descriptor</td><td class="desc">
<p>This field is a union that can hold an integer or a pointer. It is used by stream implementations to store file descriptors or <code>FILE*</code> pointers.</p>
</td></tr>
<tr><td class="val" id="pathname">pathname</td><td class="desc">
<p>This field is completely ignored by FreeType. However, it is often useful during debugging to use it to store the stream's filename (where available).</p>
</td></tr>
<tr><td class="val" id="read">read</td><td class="desc">
<p>The stream's input function.</p>
</td></tr>
<tr><td class="val" id="close">close</td><td class="desc">
<p>The stream's close function.</p>
</td></tr>
<tr><td class="val" id="memory">memory</td><td class="desc">
<p>The memory manager to use to preload frames. This is set internally by FreeType and shouldn't be touched by stream implementations.</p>
</td></tr>
<tr><td class="val" id="cursor">cursor</td><td class="desc">
<p>This field is set and used internally by FreeType when parsing frames. In particular, the <code>FT_GET_XXX</code> macros use this instead of the <code>pos</code> field.</p>
</td></tr>
<tr><td class="val" id="limit">limit</td><td class="desc">
<p>This field is set and used internally by FreeType when parsing frames.</p>
</td></tr>
</table>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#controlling-freetype-modules">Controlling FreeType Modules</a> » The Type 1 and CID drivers</p>
<hr />
<h1 id="the-type-1-and-cid-drivers">The Type 1 and CID drivers<a class="headerlink" href="#the-type-1-and-cid-drivers" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>It is possible to control the behaviour of FreeType's Type 1 and Type 1 CID drivers with <code><a href="ft2-module_management.html#ft_property_set">FT_Property_Set</a></code> and <code><a href="ft2-module_management.html#ft_property_get">FT_Property_Get</a></code>.</p>
<p>Behind the scenes, both drivers use the Adobe CFF engine for hinting; however, the used properties must be specified separately.</p>
<p>The Type 1 driver's module name is ‘type1’; the CID driver's module name is ‘t1cid’.</p>
<p>Available properties are <code><a href="ft2-properties.html#hinting-engine">hinting-engine</a></code>, <code><a href="ft2-properties.html#no-stem-darkening">no-stem-darkening</a></code>, <code><a href="ft2-properties.html#darkening-parameters">darkening-parameters</a></code>, and <code><a href="ft2-properties.html#random-seed">random-seed</a></code>, as documented in the ‘<a href="ft2-properties.html#properties">Driver properties</a>’ section.</p>
<p>Please see the ‘<a href="ft2-cff_driver.html#cff_driver">The CFF driver</a>’ section for more details on the new hinting engine.</p>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#miscellaneous">Miscellaneous</a> » The TrueType Engine</p>
<hr />
<h1 id="the-truetype-engine">The TrueType Engine<a class="headerlink" href="#the-truetype-engine" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section contains a function used to query the level of TrueType bytecode support compiled in this version of the library.</p>
<h2 id="ft_truetypeenginetype">FT_TrueTypeEngineType<a class="headerlink" href="#ft_truetypeenginetype" title="Permanent link">¶</a></h2>
<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_TrueTypeEngineType_
{
<a href="ft2-truetype_engine.html#ft_truetype_engine_type_none">FT_TRUETYPE_ENGINE_TYPE_NONE</a> = 0,
<a href="ft2-truetype_engine.html#ft_truetype_engine_type_unpatented">FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</a>,
<a href="ft2-truetype_engine.html#ft_truetype_engine_type_patented">FT_TRUETYPE_ENGINE_TYPE_PATENTED</a>
} <b>FT_TrueTypeEngineType</b>;
</code></pre></div>
<p>A list of values describing which kind of TrueType bytecode engine is implemented in a given FT_Library instance. It is used by the <code><a href="ft2-truetype_engine.html#ft_get_truetype_engine_type">FT_Get_TrueType_Engine_Type</a></code> function.</p>
<h4>values</h4>
<table class="fields long">
<tr><td class="val" id="ft_truetype_engine_type_none">FT_TRUETYPE_ENGINE_TYPE_NONE</td><td class="desc">
<p>The library doesn't implement any kind of bytecode interpreter.</p>
</td></tr>
<tr><td class="val" id="ft_truetype_engine_type_unpatented">FT_TRUETYPE_ENGINE_TYPE_UNPATENTED</td><td class="desc">
<p>Deprecated and removed.</p>
</td></tr>
<tr><td class="val" id="ft_truetype_engine_type_patented">FT_TRUETYPE_ENGINE_TYPE_PATENTED</td><td class="desc">
<p>The library implements a bytecode interpreter that covers the full instruction set of the TrueType virtual machine (this was governed by patents until May 2010, hence the name).</p>
</td></tr>
</table>
<h4>since</h4>
<p>2.2</p>
<hr>
<h2 id="ft_get_truetype_engine_type">FT_Get_TrueType_Engine_Type<a class="headerlink" href="#ft_get_truetype_engine_type" title="Permanent link">¶</a></h2>
<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-truetype_engine.html#ft_truetypeenginetype">FT_TrueTypeEngineType</a> )
<b>FT_Get_TrueType_Engine_Type</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library );
</code></pre></div>
<p>Return an <code><a href="ft2-truetype_engine.html#ft_truetypeenginetype">FT_TrueTypeEngineType</a></code> value to indicate which level of the TrueType virtual machine a given library instance supports.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="library">library</td><td class="desc">
<p>A library instance.</p>
</td></tr>
</table>
<h4>return</h4>
<p>A value indicating which level is supported.</p>
<h4>since</h4>
<p>2.2</p>
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TT_HoriHeader
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TT_VertHeader
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TT_OS2
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TT_Postscript
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TT_PCLT
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FT_Sfnt_Tag
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FT_Get_Sfnt_Table
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FT_Load_Sfnt_Table
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FT_Sfnt_Table_Info
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FT_Get_CMap_Language_ID
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FT_Get_CMap_Format
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FT_PARAM_TAG_UNPATENTED_HINTING
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TT_PLATFORM_XXX
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TT_ADOBE_ID_XXX
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TT_MAC_LANGID_XXX
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TT_MS_LANGID_XXX
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TT_NAME_ID_XXX
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Synopsis
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TT_Header
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TT_HoriHeader
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TT_VertHeader
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TT_OS2
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TT_Postscript
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TT_PCLT
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TT_MaxProfile
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FT_Sfnt_Tag
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FT_Get_Sfnt_Table
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FT_Load_Sfnt_Table
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FT_Sfnt_Table_Info
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FT_Get_CMap_Language_ID
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FT_Get_CMap_Format
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FT_PARAM_TAG_UNPATENTED_HINTING
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TT_PLATFORM_XXX
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TT_APPLE_ID_XXX
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TT_MAC_ID_XXX
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TT_ISO_ID_XXX
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TT_MS_ID_XXX
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TT_ADOBE_ID_XXX
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TT_MAC_LANGID_XXX
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TT_MS_LANGID_XXX
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TT_NAME_ID_XXX
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<article class="md-content__inner md-typeset">
<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#format-specific-api">Format-Specific API</a> » TrueType Tables</p>
<hr />
<h1 id="truetype-tables">TrueType Tables<a class="headerlink" href="#truetype-tables" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section contains definitions of some basic tables specific to TrueType and OpenType as well as some routines used to access and process them.</p>
<h2 id="tt_header">TT_Header<a class="headerlink" href="#tt_header" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_Header_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> Table_Version;
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> Font_Revision;
<a href="ft2-basic_types.html#ft_long">FT_Long</a> CheckSum_Adjust;
<a href="ft2-basic_types.html#ft_long">FT_Long</a> Magic_Number;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Flags;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Units_Per_EM;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> Created [2];
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> Modified[2];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> xMin;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> yMin;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> xMax;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> yMax;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Mac_Style;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Lowest_Rec_PPEM;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Font_Direction;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Index_To_Loc_Format;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Glyph_Data_Format;
} <b>TT_Header</b>;
</code></pre></div>
<p>A structure to model a TrueType font header table. All fields follow the OpenType specification. The 64-bit timestamps are stored in two-element arrays <code>Created</code> and <code>Modified</code>, first the upper then the lower 32 bits.</p>
<hr>
<h2 id="tt_horiheader">TT_HoriHeader<a class="headerlink" href="#tt_horiheader" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_HoriHeader_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> Version;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Ascender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Descender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Line_Gap;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> advance_Width_Max; /* advance width maximum */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> min_Left_Side_Bearing; /* minimum left-sb */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> min_Right_Side_Bearing; /* minimum right-sb */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> xMax_Extent; /* xmax extents */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Slope_Rise;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Slope_Run;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Offset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Reserved[4];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> metric_Data_Format;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> number_Of_HMetrics;
/* The following fields are not defined by the OpenType specification */
/* but they are used to connect the metrics header to the relevant */
/* 'hmtx' table. */
<span class="keyword">void</span>* long_metrics;
<span class="keyword">void</span>* short_metrics;
} <b>TT_HoriHeader</b>;
</code></pre></div>
<p>A structure to model a TrueType horizontal header, the ‘hhea’ table, as well as the corresponding horizontal metrics table, ‘hmtx’.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="version">Version</td><td class="desc">
<p>The table version.</p>
</td></tr>
<tr><td class="val" id="ascender">Ascender</td><td class="desc">
<p>The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font.</p>
<p>This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).</p>
<p>You should use the <code>sTypoAscender</code> field of the ‘OS/2’ table instead if you want the correct one.</p>
</td></tr>
<tr><td class="val" id="descender">Descender</td><td class="desc">
<p>The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative.</p>
<p>This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).</p>
<p>You should use the <code>sTypoDescender</code> field of the ‘OS/2’ table instead if you want the correct one.</p>
</td></tr>
<tr><td class="val" id="line_gap">Line_Gap</td><td class="desc">
<p>The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font.</p>
</td></tr>
<tr><td class="val" id="advance_width_max">advance_Width_Max</td><td class="desc">
<p>This field is the maximum of all advance widths found in the font. It can be used to compute the maximum width of an arbitrary string of text.</p>
</td></tr>
<tr><td class="val" id="min_left_side_bearing">min_Left_Side_Bearing</td><td class="desc">
<p>The minimum left side bearing of all glyphs within the font.</p>
</td></tr>
<tr><td class="val" id="min_right_side_bearing">min_Right_Side_Bearing</td><td class="desc">
<p>The minimum right side bearing of all glyphs within the font.</p>
</td></tr>
<tr><td class="val" id="xmax_extent">xMax_Extent</td><td class="desc">
<p>The maximum horizontal extent (i.e., the ‘width’ of a glyph's bounding box) for all glyphs in the font.</p>
</td></tr>
<tr><td class="val" id="caret_slope_rise">caret_Slope_Rise</td><td class="desc">
<p>The rise coefficient of the cursor's slope of the cursor (slope=rise/run).</p>
</td></tr>
<tr><td class="val" id="caret_slope_run">caret_Slope_Run</td><td class="desc">
<p>The run coefficient of the cursor's slope.</p>
</td></tr>
<tr><td class="val" id="caret_offset">caret_Offset</td><td class="desc">
<p>The cursor's offset for slanted fonts.</p>
</td></tr>
<tr><td class="val" id="reserved">Reserved</td><td class="desc">
<p>8 reserved bytes.</p>
</td></tr>
<tr><td class="val" id="metric_data_format">metric_Data_Format</td><td class="desc">
<p>Always 0.</p>
</td></tr>
<tr><td class="val" id="number_of_hmetrics">number_Of_HMetrics</td><td class="desc">
<p>Number of HMetrics entries in the ‘hmtx’ table – this value can be smaller than the total number of glyphs in the font.</p>
</td></tr>
<tr><td class="val" id="long_metrics">long_metrics</td><td class="desc">
<p>A pointer into the ‘hmtx’ table.</p>
</td></tr>
<tr><td class="val" id="short_metrics">short_metrics</td><td class="desc">
<p>A pointer into the ‘hmtx’ table.</p>
</td></tr>
</table>
<h4>note</h4>
<p>For an OpenType variation font, the values of the following fields can change after a call to <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code> (and friends) if the font contains an ‘MVAR’ table: <code>caret_Slope_Rise</code>, <code>caret_Slope_Run</code>, and <code>caret_Offset</code>.</p>
<hr>
<h2 id="tt_vertheader">TT_VertHeader<a class="headerlink" href="#tt_vertheader" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_VertHeader_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> Version;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Ascender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Descender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Line_Gap;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> advance_Height_Max; /* advance height maximum */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> min_Top_Side_Bearing; /* minimum top-sb */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> min_Bottom_Side_Bearing; /* minimum bottom-sb */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> yMax_Extent; /* ymax extents */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Slope_Rise;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Slope_Run;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> caret_Offset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> Reserved[4];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> metric_Data_Format;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> number_Of_VMetrics;
/* The following fields are not defined by the OpenType specification */
/* but they are used to connect the metrics header to the relevant */
/* 'vmtx' table. */
<span class="keyword">void</span>* long_metrics;
<span class="keyword">void</span>* short_metrics;
} <b>TT_VertHeader</b>;
</code></pre></div>
<p>A structure used to model a TrueType vertical header, the ‘vhea’ table, as well as the corresponding vertical metrics table, ‘vmtx’.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="version">Version</td><td class="desc">
<p>The table version.</p>
</td></tr>
<tr><td class="val" id="ascender">Ascender</td><td class="desc">
<p>The font's ascender, i.e., the distance from the baseline to the top-most of all glyph points found in the font.</p>
<p>This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).</p>
<p>You should use the <code>sTypoAscender</code> field of the ‘OS/2’ table instead if you want the correct one.</p>
</td></tr>
<tr><td class="val" id="descender">Descender</td><td class="desc">
<p>The font's descender, i.e., the distance from the baseline to the bottom-most of all glyph points found in the font. It is negative.</p>
<p>This value is invalid in many fonts, as it is usually set by the font designer, and often reflects only a portion of the glyphs found in the font (maybe ASCII).</p>
<p>You should use the <code>sTypoDescender</code> field of the ‘OS/2’ table instead if you want the correct one.</p>
</td></tr>
<tr><td class="val" id="line_gap">Line_Gap</td><td class="desc">
<p>The font's line gap, i.e., the distance to add to the ascender and descender to get the BTB, i.e., the baseline-to-baseline distance for the font.</p>
</td></tr>
<tr><td class="val" id="advance_height_max">advance_Height_Max</td><td class="desc">
<p>This field is the maximum of all advance heights found in the font. It can be used to compute the maximum height of an arbitrary string of text.</p>
</td></tr>
<tr><td class="val" id="min_top_side_bearing">min_Top_Side_Bearing</td><td class="desc">
<p>The minimum top side bearing of all glyphs within the font.</p>
</td></tr>
<tr><td class="val" id="min_bottom_side_bearing">min_Bottom_Side_Bearing</td><td class="desc">
<p>The minimum bottom side bearing of all glyphs within the font.</p>
</td></tr>
<tr><td class="val" id="ymax_extent">yMax_Extent</td><td class="desc">
<p>The maximum vertical extent (i.e., the ‘height’ of a glyph's bounding box) for all glyphs in the font.</p>
</td></tr>
<tr><td class="val" id="caret_slope_rise">caret_Slope_Rise</td><td class="desc">
<p>The rise coefficient of the cursor's slope of the cursor (slope=rise/run).</p>
</td></tr>
<tr><td class="val" id="caret_slope_run">caret_Slope_Run</td><td class="desc">
<p>The run coefficient of the cursor's slope.</p>
</td></tr>
<tr><td class="val" id="caret_offset">caret_Offset</td><td class="desc">
<p>The cursor's offset for slanted fonts.</p>
</td></tr>
<tr><td class="val" id="reserved">Reserved</td><td class="desc">
<p>8 reserved bytes.</p>
</td></tr>
<tr><td class="val" id="metric_data_format">metric_Data_Format</td><td class="desc">
<p>Always 0.</p>
</td></tr>
<tr><td class="val" id="number_of_vmetrics">number_Of_VMetrics</td><td class="desc">
<p>Number of VMetrics entries in the ‘vmtx’ table – this value can be smaller than the total number of glyphs in the font.</p>
</td></tr>
<tr><td class="val" id="long_metrics">long_metrics</td><td class="desc">
<p>A pointer into the ‘vmtx’ table.</p>
</td></tr>
<tr><td class="val" id="short_metrics">short_metrics</td><td class="desc">
<p>A pointer into the ‘vmtx’ table.</p>
</td></tr>
</table>
<h4>note</h4>
<p>For an OpenType variation font, the values of the following fields can change after a call to <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code> (and friends) if the font contains an ‘MVAR’ table: <code>Ascender</code>, <code>Descender</code>, <code>Line_Gap</code>, <code>caret_Slope_Rise</code>, <code>caret_Slope_Run</code>, and <code>caret_Offset</code>.</p>
<hr>
<h2 id="tt_os2">TT_OS2<a class="headerlink" href="#tt_os2" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_OS2_
{
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> version; /* 0x0001 - more or 0xFFFF */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> xAvgCharWidth;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usWeightClass;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usWidthClass;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> fsType;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySubscriptXSize;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySubscriptYSize;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySubscriptXOffset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySubscriptYOffset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySuperscriptXSize;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySuperscriptYSize;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySuperscriptXOffset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> ySuperscriptYOffset;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> yStrikeoutSize;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> yStrikeoutPosition;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sFamilyClass;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> panose[10];
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulUnicodeRange1; /* Bits 0-31 */
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulUnicodeRange2; /* Bits 32-63 */
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulUnicodeRange3; /* Bits 64-95 */
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulUnicodeRange4; /* Bits 96-127 */
<a href="ft2-basic_types.html#ft_char">FT_Char</a> achVendID[4];
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> fsSelection;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usFirstCharIndex;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usLastCharIndex;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sTypoAscender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sTypoDescender;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sTypoLineGap;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usWinAscent;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usWinDescent;
/* only version 1 and higher: */
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulCodePageRange1; /* Bits 0-31 */
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> ulCodePageRange2; /* Bits 32-63 */
/* only version 2 and higher: */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sxHeight;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> sCapHeight;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usDefaultChar;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usBreakChar;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usMaxContext;
/* only version 5 and higher: */
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usLowerOpticalPointSize; /* in twips (1/20th points) */
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> usUpperOpticalPointSize; /* in twips (1/20th points) */
} <b>TT_OS2</b>;
</code></pre></div>
<p>A structure to model a TrueType ‘OS/2’ table. All fields comply to the OpenType specification.</p>
<p>Note that we now support old Mac fonts that do not include an ‘OS/2’ table. In this case, the <code>version</code> field is always set to 0xFFFF.</p>
<h4>note</h4>
<p>For an OpenType variation font, the values of the following fields can change after a call to <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code> (and friends) if the font contains an ‘MVAR’ table: <code>sCapHeight</code>, <code>sTypoAscender</code>, <code>sTypoDescender</code>, <code>sTypoLineGap</code>, <code>sxHeight</code>, <code>usWinAscent</code>, <code>usWinDescent</code>, <code>yStrikeoutPosition</code>, <code>yStrikeoutSize</code>, <code>ySubscriptXOffset</code>, <code>ySubScriptXSize</code>, <code>ySubscriptYOffset</code>, <code>ySubscriptYSize</code>, <code>ySuperscriptXOffset</code>, <code>ySuperscriptXSize</code>, <code>ySuperscriptYOffset</code>, and <code>ySuperscriptYSize</code>.</p>
<p>Possible values for bits in the <code>ulUnicodeRangeX</code> fields are given by the <code><a href="ft2-truetype_tables.html#tt_ucr_xxx">TT_UCR_XXX</a></code> macros.</p>
<hr>
<h2 id="tt_postscript">TT_Postscript<a class="headerlink" href="#tt_postscript" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_Postscript_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> FormatType;
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> italicAngle;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> underlinePosition;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> underlineThickness;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> isFixedPitch;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> minMemType42;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> maxMemType42;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> minMemType1;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> maxMemType1;
/* Glyph names follow in the 'post' table, but we don't */
/* load them by default. */
} <b>TT_Postscript</b>;
</code></pre></div>
<p>A structure to model a TrueType ‘post’ table. All fields comply to the OpenType specification. This structure does not reference a font's PostScript glyph names; use <code><a href="ft2-base_interface.html#ft_get_glyph_name">FT_Get_Glyph_Name</a></code> to retrieve them.</p>
<h4>note</h4>
<p>For an OpenType variation font, the values of the following fields can change after a call to <code><a href="ft2-multiple_masters.html#ft_set_var_design_coordinates">FT_Set_Var_Design_Coordinates</a></code> (and friends) if the font contains an ‘MVAR’ table: <code>underlinePosition</code> and <code>underlineThickness</code>.</p>
<hr>
<h2 id="tt_pclt">TT_PCLT<a class="headerlink" href="#tt_pclt" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_PCLT_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> Version;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> FontNumber;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Pitch;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> xHeight;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> Style;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> TypeFamily;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> CapHeight;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> SymbolSet;
<a href="ft2-basic_types.html#ft_char">FT_Char</a> TypeFace[16];
<a href="ft2-basic_types.html#ft_char">FT_Char</a> CharacterComplement[8];
<a href="ft2-basic_types.html#ft_char">FT_Char</a> FileName[6];
<a href="ft2-basic_types.html#ft_char">FT_Char</a> StrokeWeight;
<a href="ft2-basic_types.html#ft_char">FT_Char</a> WidthType;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> SerifStyle;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> Reserved;
} <b>TT_PCLT</b>;
</code></pre></div>
<p>A structure to model a TrueType ‘PCLT’ table. All fields comply to the OpenType specification.</p>
<hr>
<h2 id="tt_maxprofile">TT_MaxProfile<a class="headerlink" href="#tt_maxprofile" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> TT_MaxProfile_
{
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> version;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> numGlyphs;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxPoints;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxContours;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxCompositePoints;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxCompositeContours;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxZones;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxTwilightPoints;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxStorage;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxFunctionDefs;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxInstructionDefs;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxStackElements;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxSizeOfInstructions;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxComponentElements;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> maxComponentDepth;
} <b>TT_MaxProfile</b>;
</code></pre></div>
<p>The maximum profile (‘maxp’) table contains many max values, which can be used to pre-allocate arrays for speeding up glyph loading and hinting.</p>
<h4>fields</h4>
<table class="fields">
<tr><td class="val" id="version">version</td><td class="desc">
<p>The version number.</p>
</td></tr>
<tr><td class="val" id="numglyphs">numGlyphs</td><td class="desc">
<p>The number of glyphs in this TrueType font.</p>
</td></tr>
<tr><td class="val" id="maxpoints">maxPoints</td><td class="desc">
<p>The maximum number of points in a non-composite TrueType glyph. See also <code>maxCompositePoints</code>.</p>
</td></tr>
<tr><td class="val" id="maxcontours">maxContours</td><td class="desc">
<p>The maximum number of contours in a non-composite TrueType glyph. See also <code>maxCompositeContours</code>.</p>
</td></tr>
<tr><td class="val" id="maxcompositepoints">maxCompositePoints</td><td class="desc">
<p>The maximum number of points in a composite TrueType glyph. See also <code>maxPoints</code>.</p>
</td></tr>
<tr><td class="val" id="maxcompositecontours">maxCompositeContours</td><td class="desc">
<p>The maximum number of contours in a composite TrueType glyph. See also <code>maxContours</code>.</p>
</td></tr>
<tr><td class="val" id="maxzones">maxZones</td><td class="desc">
<p>The maximum number of zones used for glyph hinting.</p>
</td></tr>
<tr><td class="val" id="maxtwilightpoints">maxTwilightPoints</td><td class="desc">
<p>The maximum number of points in the twilight zone used for glyph hinting.</p>
</td></tr>
<tr><td class="val" id="maxstorage">maxStorage</td><td class="desc">
<p>The maximum number of elements in the storage area used for glyph hinting.</p>
</td></tr>
<tr><td class="val" id="maxfunctiondefs">maxFunctionDefs</td><td class="desc">
<p>The maximum number of function definitions in the TrueType bytecode for this font.</p>
</td></tr>
<tr><td class="val" id="maxinstructiondefs">maxInstructionDefs</td><td class="desc">
<p>The maximum number of instruction definitions in the TrueType bytecode for this font.</p>
</td></tr>
<tr><td class="val" id="maxstackelements">maxStackElements</td><td class="desc">
<p>The maximum number of stack elements used during bytecode interpretation.</p>
</td></tr>
<tr><td class="val" id="maxsizeofinstructions">maxSizeOfInstructions</td><td class="desc">
<p>The maximum number of TrueType opcodes used for glyph hinting.</p>
</td></tr>
<tr><td class="val" id="maxcomponentelements">maxComponentElements</td><td class="desc">
<p>The maximum number of simple (i.e., non-composite) glyphs in a composite glyph.</p>
</td></tr>
<tr><td class="val" id="maxcomponentdepth">maxComponentDepth</td><td class="desc">
<p>The maximum nesting depth of composite glyphs.</p>
</td></tr>
</table>
<h4>note</h4>
<p>This structure is only used during font loading.</p>
<hr>
<h2 id="ft_sfnt_tag">FT_Sfnt_Tag<a class="headerlink" href="#ft_sfnt_tag" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> FT_Sfnt_Tag_
{
<a href="ft2-truetype_tables.html#ft_sfnt_head">FT_SFNT_HEAD</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_maxp">FT_SFNT_MAXP</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_os2">FT_SFNT_OS2</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_hhea">FT_SFNT_HHEA</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_vhea">FT_SFNT_VHEA</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_post">FT_SFNT_POST</a>,
<a href="ft2-truetype_tables.html#ft_sfnt_pclt">FT_SFNT_PCLT</a>,
FT_SFNT_MAX
} <b>FT_Sfnt_Tag</b>;
/* these constants are deprecated; use the corresponding `<b>FT_Sfnt_Tag</b>` */
/* values instead */
#<span class="keyword">define</span> ft_sfnt_head <a href="ft2-truetype_tables.html#ft_sfnt_head">FT_SFNT_HEAD</a>
#<span class="keyword">define</span> ft_sfnt_maxp <a href="ft2-truetype_tables.html#ft_sfnt_maxp">FT_SFNT_MAXP</a>
#<span class="keyword">define</span> ft_sfnt_os2 <a href="ft2-truetype_tables.html#ft_sfnt_os2">FT_SFNT_OS2</a>
#<span class="keyword">define</span> ft_sfnt_hhea <a href="ft2-truetype_tables.html#ft_sfnt_hhea">FT_SFNT_HHEA</a>
#<span class="keyword">define</span> ft_sfnt_vhea <a href="ft2-truetype_tables.html#ft_sfnt_vhea">FT_SFNT_VHEA</a>
#<span class="keyword">define</span> ft_sfnt_post <a href="ft2-truetype_tables.html#ft_sfnt_post">FT_SFNT_POST</a>
#<span class="keyword">define</span> ft_sfnt_pclt <a href="ft2-truetype_tables.html#ft_sfnt_pclt">FT_SFNT_PCLT</a>
</code></pre></div>
<p>An enumeration to specify indices of SFNT tables loaded and parsed by FreeType during initialization of an SFNT font. Used in the <code><a href="ft2-truetype_tables.html#ft_get_sfnt_table">FT_Get_Sfnt_Table</a></code> API function.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="ft_sfnt_head">FT_SFNT_HEAD</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_header">TT_Header</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_maxp">FT_SFNT_MAXP</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_maxprofile">TT_MaxProfile</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_os2">FT_SFNT_OS2</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_os2">TT_OS2</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_hhea">FT_SFNT_HHEA</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_horiheader">TT_HoriHeader</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_vhea">FT_SFNT_VHEA</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_vertheader">TT_VertHeader</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_post">FT_SFNT_POST</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_postscript">TT_Postscript</a></code> structure.</p>
</td></tr>
<tr><td class="val" id="ft_sfnt_pclt">FT_SFNT_PCLT</td><td class="desc">
<p>To access the font's <code><a href="ft2-truetype_tables.html#tt_pclt">TT_PCLT</a></code> structure.</p>
</td></tr>
</table>
<hr>
<h2 id="ft_get_sfnt_table">FT_Get_Sfnt_Table<a class="headerlink" href="#ft_get_sfnt_table" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <span class="keyword">void</span>* )
<b>FT_Get_Sfnt_Table</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-truetype_tables.html#ft_sfnt_tag">FT_Sfnt_Tag</a> tag );
</code></pre></div>
<p>Return a pointer to a given SFNT table stored within a face.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A handle to the source.</p>
</td></tr>
<tr><td class="val" id="tag">tag</td><td class="desc">
<p>The index of the SFNT table.</p>
</td></tr>
</table>
<h4>return</h4>
<p>A type-less pointer to the table. This will be <code>NULL</code> in case of error, or if the corresponding table was not found <strong>OR</strong> loaded from the file.</p>
<p>Use a typecast according to <code>tag</code> to access the structure elements.</p>
<h4>note</h4>
<p>The table is owned by the face object and disappears with it.</p>
<p>This function is only useful to access SFNT tables that are loaded by the sfnt, truetype, and opentype drivers. See <code><a href="ft2-truetype_tables.html#ft_sfnt_tag">FT_Sfnt_Tag</a></code> for a list.</p>
<h4>example</h4>
<p>Here is an example demonstrating access to the ‘vhea’ table.
<div class="highlight"><pre><span></span><code> TT_VertHeader* vert_header;
vert_header =
(TT_VertHeader*)FT_Get_Sfnt_Table( face, FT_SFNT_VHEA );
</code></pre></div></p>
<hr>
<h2 id="ft_load_sfnt_table">FT_Load_Sfnt_Table<a class="headerlink" href="#ft_load_sfnt_table" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Load_Sfnt_Table</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> tag,
<a href="ft2-basic_types.html#ft_long">FT_Long</a> offset,
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a>* buffer,
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>* length );
</code></pre></div>
<p>Load any SFNT font table into client memory.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A handle to the source face.</p>
</td></tr>
<tr><td class="val" id="tag">tag</td><td class="desc">
<p>The four-byte tag of the table to load. Use value 0 if you want to access the whole font file. Otherwise, you can use one of the definitions found in the <code><a href="ft2-header_file_macros.html#ft_truetype_tags_h">FT_TRUETYPE_TAGS_H</a></code> file, or forge a new one with <code><a href="ft2-basic_types.html#ft_make_tag">FT_MAKE_TAG</a></code>.</p>
</td></tr>
<tr><td class="val" id="offset">offset</td><td class="desc">
<p>The starting offset in the table (or file if tag == 0).</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="buffer">buffer</td><td class="desc">
<p>The target buffer address. The client must ensure that the memory array is big enough to hold the data.</p>
</td></tr>
</table>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="length">length</td><td class="desc">
<p>If the <code>length</code> parameter is <code>NULL</code>, try to load the whole table. Return an error code if it fails.</p>
<p>Else, if <code>*length</code> is 0, exit immediately while returning the table's (or file) full size in it.</p>
<p>Else the number of bytes to read from the table or file, from the starting offset.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>note</h4>
<p>If you need to determine the table's length you should first call this function with <code>*length</code> set to 0, as in the following example:
<div class="highlight"><pre><span></span><code> FT_ULong length = 0;
error = FT_Load_Sfnt_Table( face, tag, 0, NULL, &length );
if ( error ) { ... table does not exist ... }
buffer = malloc( length );
if ( buffer == NULL ) { ... not enough memory ... }
error = FT_Load_Sfnt_Table( face, tag, 0, buffer, &length );
if ( error ) { ... could not load table ... }
</code></pre></div></p>
<p>Note that structures like <code><a href="ft2-truetype_tables.html#tt_header">TT_Header</a></code> or <code><a href="ft2-truetype_tables.html#tt_os2">TT_OS2</a></code> can't be used with this function; they are limited to <code><a href="ft2-truetype_tables.html#ft_get_sfnt_table">FT_Get_Sfnt_Table</a></code>. Reason is that those structures depend on the processor architecture, with varying size (e.g. 32bit vs. 64bit) or order (big endian vs. little endian).</p>
<hr>
<h2 id="ft_sfnt_table_info">FT_Sfnt_Table_Info<a class="headerlink" href="#ft_sfnt_table_info" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Sfnt_Table_Info</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> table_index,
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> *tag,
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> *length );
</code></pre></div>
<p>Return information on an SFNT table.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A handle to the source face.</p>
</td></tr>
<tr><td class="val" id="table_index">table_index</td><td class="desc">
<p>The index of an SFNT table. The function returns FT_Err_Table_Missing for an invalid value.</p>
</td></tr>
</table>
<h4>inout</h4>
<table class="fields">
<tr><td class="val" id="tag">tag</td><td class="desc">
<p>The name tag of the SFNT table. If the value is <code>NULL</code>, <code>table_index</code> is ignored, and <code>length</code> returns the number of SFNT tables in the font.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="length">length</td><td class="desc">
<p>The length of the SFNT table (or the number of SFNT tables, depending on <code>tag</code>).</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>note</h4>
<p>While parsing fonts, FreeType handles SFNT tables with length zero as missing.</p>
<hr>
<h2 id="ft_get_cmap_language_id">FT_Get_CMap_Language_ID<a class="headerlink" href="#ft_get_cmap_language_id" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> )
<b>FT_Get_CMap_Language_ID</b>( <a href="ft2-base_interface.html#ft_charmap">FT_CharMap</a> charmap );
</code></pre></div>
<p>Return cmap language ID as specified in the OpenType standard. Definitions of language ID values are in file <code><a href="ft2-header_file_macros.html#ft_truetype_ids_h">FT_TRUETYPE_IDS_H</a></code>.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="charmap">charmap</td><td class="desc">
<p>The target charmap.</p>
</td></tr>
</table>
<h4>return</h4>
<p>The language ID of <code>charmap</code>. If <code>charmap</code> doesn't belong to an SFNT face, just return 0 as the default value.</p>
<p>For a format 14 cmap (to access Unicode IVS), the return value is 0xFFFFFFFF.</p>
<hr>
<h2 id="ft_get_cmap_format">FT_Get_CMap_Format<a class="headerlink" href="#ft_get_cmap_format" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_TABLES_H (freetype/tttables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_long">FT_Long</a> )
<b>FT_Get_CMap_Format</b>( <a href="ft2-base_interface.html#ft_charmap">FT_CharMap</a> charmap );
</code></pre></div>
<p>Return the format of an SFNT ‘cmap’ table.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="charmap">charmap</td><td class="desc">
<p>The target charmap.</p>
</td></tr>
</table>
<h4>return</h4>
<p>The format of <code>charmap</code>. If <code>charmap</code> doesn't belong to an SFNT face, return -1.</p>
<hr>
<h2 id="ft_param_tag_unpatented_hinting">FT_PARAM_TAG_UNPATENTED_HINTING<a class="headerlink" href="#ft_param_tag_unpatented_hinting" title="Permanent link">¶</a></h2>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_PARAM_TAG_UNPATENTED_HINTING</b> \
<a href="ft2-basic_types.html#ft_make_tag">FT_MAKE_TAG</a>( 'u', 'n', 'p', 'a' )
</code></pre></div>
<p>Deprecated, no effect.</p>
<p>Previously: A constant used as the tag of an <code><a href="ft2-base_interface.html#ft_parameter">FT_Parameter</a></code> structure to indicate that unpatented methods only should be used by the TrueType bytecode interpreter for a typeface opened by <code><a href="ft2-base_interface.html#ft_open_face">FT_Open_Face</a></code>.</p>
<hr>
<h2 id="tt_platform_xxx">TT_PLATFORM_XXX<a class="headerlink" href="#tt_platform_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_apple_unicode">TT_PLATFORM_APPLE_UNICODE</a> 0
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_macintosh">TT_PLATFORM_MACINTOSH</a> 1
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_iso">TT_PLATFORM_ISO</a> 2 /* deprecated */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_microsoft">TT_PLATFORM_MICROSOFT</a> 3
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_custom">TT_PLATFORM_CUSTOM</a> 4
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_platform_adobe">TT_PLATFORM_ADOBE</a> 7 /* artificial */
</code></pre></div>
<p>A list of valid values for the <code>platform_id</code> identifier code in <code><a href="ft2-base_interface.html#ft_charmaprec">FT_CharMapRec</a></code> and <code><a href="ft2-sfnt_names.html#ft_sfntname">FT_SfntName</a></code> structures.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="tt_platform_apple_unicode">TT_PLATFORM_APPLE_UNICODE</td><td class="desc">
<p>Used by Apple to indicate a Unicode character map and/or name entry. See <code><a href="ft2-truetype_tables.html#tt_apple_id_xxx">TT_APPLE_ID_XXX</a></code> for corresponding <code>encoding_id</code> values. Note that name entries in this format are coded as big-endian UCS-2 character codes <em>only</em>.</p>
</td></tr>
<tr><td class="val" id="tt_platform_macintosh">TT_PLATFORM_MACINTOSH</td><td class="desc">
<p>Used by Apple to indicate a MacOS-specific charmap and/or name entry. See <code><a href="ft2-truetype_tables.html#tt_mac_id_xxx">TT_MAC_ID_XXX</a></code> for corresponding <code>encoding_id</code> values. Note that most TrueType fonts contain an Apple roman charmap to be usable on MacOS systems (even if they contain a Microsoft charmap as well).</p>
</td></tr>
<tr><td class="val" id="tt_platform_iso">TT_PLATFORM_ISO</td><td class="desc">
<p>This value was used to specify ISO/IEC 10646 charmaps. It is however now deprecated. See <code><a href="ft2-truetype_tables.html#tt_iso_id_xxx">TT_ISO_ID_XXX</a></code> for a list of corresponding <code>encoding_id</code> values.</p>
</td></tr>
<tr><td class="val" id="tt_platform_microsoft">TT_PLATFORM_MICROSOFT</td><td class="desc">
<p>Used by Microsoft to indicate Windows-specific charmaps. See <code><a href="ft2-truetype_tables.html#tt_ms_id_xxx">TT_MS_ID_XXX</a></code> for a list of corresponding <code>encoding_id</code> values. Note that most fonts contain a Unicode charmap using (<code>TT_PLATFORM_MICROSOFT</code>, <code><a href="ft2-truetype_tables.html#tt_ms_id_xxx">TT_MS_ID_UNICODE_CS</a></code>).</p>
</td></tr>
<tr><td class="val" id="tt_platform_custom">TT_PLATFORM_CUSTOM</td><td class="desc">
<p>Used to indicate application-specific charmaps.</p>
</td></tr>
<tr><td class="val" id="tt_platform_adobe">TT_PLATFORM_ADOBE</td><td class="desc">
<p>This value isn't part of any font format specification, but is used by FreeType to report Adobe-specific charmaps in an <code><a href="ft2-base_interface.html#ft_charmaprec">FT_CharMapRec</a></code> structure. See <code><a href="ft2-truetype_tables.html#tt_adobe_id_xxx">TT_ADOBE_ID_XXX</a></code>.</p>
</td></tr>
</table>
<hr>
<h2 id="tt_apple_id_xxx">TT_APPLE_ID_XXX<a class="headerlink" href="#tt_apple_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_default">TT_APPLE_ID_DEFAULT</a> 0 /* Unicode 1.0 */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_unicode_1_1">TT_APPLE_ID_UNICODE_1_1</a> 1 /* specify Hangul at U+34xx */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_iso_10646">TT_APPLE_ID_ISO_10646</a> 2 /* deprecated */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_unicode_2_0">TT_APPLE_ID_UNICODE_2_0</a> 3 /* or later */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_unicode_32">TT_APPLE_ID_UNICODE_32</a> 4 /* 2.0 or later, full repertoire */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_variant_selector">TT_APPLE_ID_VARIANT_SELECTOR</a> 5 /* variation selector data */
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_apple_id_full_unicode">TT_APPLE_ID_FULL_UNICODE</a> 6 /* used with type 13 cmaps */
</code></pre></div>
<p>A list of valid values for the <code>encoding_id</code> for <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_APPLE_UNICODE</a></code> charmaps and name entries.</p>
<h4>values</h4>
<table class="fields long">
<tr><td class="val" id="tt_apple_id_default">TT_APPLE_ID_DEFAULT</td><td class="desc">
<p>Unicode version 1.0.</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_unicode_1_1">TT_APPLE_ID_UNICODE_1_1</td><td class="desc">
<p>Unicode 1.1; specifies Hangul characters starting at U+34xx.</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_iso_10646">TT_APPLE_ID_ISO_10646</td><td class="desc">
<p>Deprecated (identical to preceding).</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_unicode_2_0">TT_APPLE_ID_UNICODE_2_0</td><td class="desc">
<p>Unicode 2.0 and beyond (UTF-16 BMP only).</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_unicode_32">TT_APPLE_ID_UNICODE_32</td><td class="desc">
<p>Unicode 3.1 and beyond, using UTF-32.</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_variant_selector">TT_APPLE_ID_VARIANT_SELECTOR</td><td class="desc">
<p>From Adobe, not Apple. Not a normal cmap. Specifies variations on a real cmap.</p>
</td></tr>
<tr><td class="val" id="tt_apple_id_full_unicode">TT_APPLE_ID_FULL_UNICODE</td><td class="desc">
<p>Used for fallback fonts that provide complete Unicode coverage with a type 13 cmap.</p>
</td></tr>
</table>
<hr>
<h2 id="tt_mac_id_xxx">TT_MAC_ID_XXX<a class="headerlink" href="#tt_mac_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> TT_MAC_ID_ROMAN 0
#<span class="keyword">define</span> TT_MAC_ID_JAPANESE 1
#<span class="keyword">define</span> TT_MAC_ID_TRADITIONAL_CHINESE 2
#<span class="keyword">define</span> TT_MAC_ID_KOREAN 3
#<span class="keyword">define</span> TT_MAC_ID_ARABIC 4
#<span class="keyword">define</span> TT_MAC_ID_HEBREW 5
#<span class="keyword">define</span> TT_MAC_ID_GREEK 6
#<span class="keyword">define</span> TT_MAC_ID_RUSSIAN 7
#<span class="keyword">define</span> TT_MAC_ID_RSYMBOL 8
#<span class="keyword">define</span> TT_MAC_ID_DEVANAGARI 9
#<span class="keyword">define</span> TT_MAC_ID_GURMUKHI 10
#<span class="keyword">define</span> TT_MAC_ID_GUJARATI 11
#<span class="keyword">define</span> TT_MAC_ID_ORIYA 12
#<span class="keyword">define</span> TT_MAC_ID_BENGALI 13
#<span class="keyword">define</span> TT_MAC_ID_TAMIL 14
#<span class="keyword">define</span> TT_MAC_ID_TELUGU 15
#<span class="keyword">define</span> TT_MAC_ID_KANNADA 16
#<span class="keyword">define</span> TT_MAC_ID_MALAYALAM 17
#<span class="keyword">define</span> TT_MAC_ID_SINHALESE 18
#<span class="keyword">define</span> TT_MAC_ID_BURMESE 19
#<span class="keyword">define</span> TT_MAC_ID_KHMER 20
#<span class="keyword">define</span> TT_MAC_ID_THAI 21
#<span class="keyword">define</span> TT_MAC_ID_LAOTIAN 22
#<span class="keyword">define</span> TT_MAC_ID_GEORGIAN 23
#<span class="keyword">define</span> TT_MAC_ID_ARMENIAN 24
#<span class="keyword">define</span> TT_MAC_ID_MALDIVIAN 25
#<span class="keyword">define</span> TT_MAC_ID_SIMPLIFIED_CHINESE 25
#<span class="keyword">define</span> TT_MAC_ID_TIBETAN 26
#<span class="keyword">define</span> TT_MAC_ID_MONGOLIAN 27
#<span class="keyword">define</span> TT_MAC_ID_GEEZ 28
#<span class="keyword">define</span> TT_MAC_ID_SLAVIC 29
#<span class="keyword">define</span> TT_MAC_ID_VIETNAMESE 30
#<span class="keyword">define</span> TT_MAC_ID_SINDHI 31
#<span class="keyword">define</span> TT_MAC_ID_UNINTERP 32
</code></pre></div>
<p>A list of valid values for the <code>encoding_id</code> for <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_MACINTOSH</a></code> charmaps and name entries.</p>
<hr>
<h2 id="tt_iso_id_xxx">TT_ISO_ID_XXX<a class="headerlink" href="#tt_iso_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_iso_id_7bit_ascii">TT_ISO_ID_7BIT_ASCII</a> 0
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_iso_id_10646">TT_ISO_ID_10646</a> 1
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_iso_id_8859_1">TT_ISO_ID_8859_1</a> 2
</code></pre></div>
<p>A list of valid values for the <code>encoding_id</code> for <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_ISO</a></code> charmaps and name entries.</p>
<p>Their use is now deprecated.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="tt_iso_id_7bit_ascii">TT_ISO_ID_7BIT_ASCII</td><td class="desc">
<p>ASCII.</p>
</td></tr>
<tr><td class="val" id="tt_iso_id_10646">TT_ISO_ID_10646</td><td class="desc">
<p>ISO/10646.</p>
</td></tr>
<tr><td class="val" id="tt_iso_id_8859_1">TT_ISO_ID_8859_1</td><td class="desc">
<p>Also known as Latin-1.</p>
</td></tr>
</table>
<hr>
<h2 id="tt_ms_id_xxx">TT_MS_ID_XXX<a class="headerlink" href="#tt_ms_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_symbol_cs">TT_MS_ID_SYMBOL_CS</a> 0
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_unicode_cs">TT_MS_ID_UNICODE_CS</a> 1
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_sjis">TT_MS_ID_SJIS</a> 2
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_prc">TT_MS_ID_PRC</a> 3
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_big_5">TT_MS_ID_BIG_5</a> 4
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_wansung">TT_MS_ID_WANSUNG</a> 5
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_johab">TT_MS_ID_JOHAB</a> 6
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_ms_id_ucs_4">TT_MS_ID_UCS_4</a> 10
/* this value is deprecated */
#<span class="keyword">define</span> TT_MS_ID_GB2312 <a href="ft2-truetype_tables.html#tt_ms_id_prc">TT_MS_ID_PRC</a>
</code></pre></div>
<p>A list of valid values for the <code>encoding_id</code> for <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_MICROSOFT</a></code> charmaps and name entries.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="tt_ms_id_symbol_cs">TT_MS_ID_SYMBOL_CS</td><td class="desc">
<p>Microsoft symbol encoding. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_MS_SYMBOL</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_unicode_cs">TT_MS_ID_UNICODE_CS</td><td class="desc">
<p>Microsoft WGL4 charmap, matching Unicode. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_UNICODE</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_sjis">TT_MS_ID_SJIS</td><td class="desc">
<p>Shift JIS Japanese encoding. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_SJIS</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_prc">TT_MS_ID_PRC</td><td class="desc">
<p>Chinese encodings as used in the People's Republic of China (PRC). This means the encodings GB 2312 and its supersets GBK and GB 18030. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_PRC</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_big_5">TT_MS_ID_BIG_5</td><td class="desc">
<p>Traditional Chinese as used in Taiwan and Hong Kong. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_BIG5</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_wansung">TT_MS_ID_WANSUNG</td><td class="desc">
<p>Korean Extended Wansung encoding. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_WANSUNG</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_johab">TT_MS_ID_JOHAB</td><td class="desc">
<p>Korean Johab encoding. See <code><a href="ft2-base_interface.html#ft_encoding">FT_ENCODING_JOHAB</a></code>.</p>
</td></tr>
<tr><td class="val" id="tt_ms_id_ucs_4">TT_MS_ID_UCS_4</td><td class="desc">
<p>UCS-4 or UTF-32 charmaps. This has been added to the OpenType specification version 1.4 (mid-2001).</p>
</td></tr>
</table>
<hr>
<h2 id="tt_adobe_id_xxx">TT_ADOBE_ID_XXX<a class="headerlink" href="#tt_adobe_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_adobe_id_standard">TT_ADOBE_ID_STANDARD</a> 0
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_adobe_id_expert">TT_ADOBE_ID_EXPERT</a> 1
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_adobe_id_custom">TT_ADOBE_ID_CUSTOM</a> 2
#<span class="keyword">define</span> <a href="ft2-truetype_tables.html#tt_adobe_id_latin_1">TT_ADOBE_ID_LATIN_1</a> 3
</code></pre></div>
<p>A list of valid values for the <code>encoding_id</code> for <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_ADOBE</a></code> charmaps. This is a FreeType-specific extension!</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="tt_adobe_id_standard">TT_ADOBE_ID_STANDARD</td><td class="desc">
<p>Adobe standard encoding.</p>
</td></tr>
<tr><td class="val" id="tt_adobe_id_expert">TT_ADOBE_ID_EXPERT</td><td class="desc">
<p>Adobe expert encoding.</p>
</td></tr>
<tr><td class="val" id="tt_adobe_id_custom">TT_ADOBE_ID_CUSTOM</td><td class="desc">
<p>Adobe custom encoding.</p>
</td></tr>
<tr><td class="val" id="tt_adobe_id_latin_1">TT_ADOBE_ID_LATIN_1</td><td class="desc">
<p>Adobe Latin 1 encoding.</p>
</td></tr>
</table>
<hr>
<h2 id="tt_mac_langid_xxx">TT_MAC_LANGID_XXX<a class="headerlink" href="#tt_mac_langid_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> TT_MAC_LANGID_ENGLISH 0
#<span class="keyword">define</span> TT_MAC_LANGID_FRENCH 1
#<span class="keyword">define</span> TT_MAC_LANGID_GERMAN 2
#<span class="keyword">define</span> TT_MAC_LANGID_ITALIAN 3
#<span class="keyword">define</span> TT_MAC_LANGID_DUTCH 4
#<span class="keyword">define</span> TT_MAC_LANGID_SWEDISH 5
#<span class="keyword">define</span> TT_MAC_LANGID_SPANISH 6
#<span class="keyword">define</span> TT_MAC_LANGID_DANISH 7
#<span class="keyword">define</span> TT_MAC_LANGID_PORTUGUESE 8
#<span class="keyword">define</span> TT_MAC_LANGID_NORWEGIAN 9
#<span class="keyword">define</span> TT_MAC_LANGID_HEBREW 10
#<span class="keyword">define</span> TT_MAC_LANGID_JAPANESE 11
#<span class="keyword">define</span> TT_MAC_LANGID_ARABIC 12
#<span class="keyword">define</span> TT_MAC_LANGID_FINNISH 13
#<span class="keyword">define</span> TT_MAC_LANGID_GREEK 14
#<span class="keyword">define</span> TT_MAC_LANGID_ICELANDIC 15
#<span class="keyword">define</span> TT_MAC_LANGID_MALTESE 16
#<span class="keyword">define</span> TT_MAC_LANGID_TURKISH 17
#<span class="keyword">define</span> TT_MAC_LANGID_CROATIAN 18
#<span class="keyword">define</span> TT_MAC_LANGID_CHINESE_TRADITIONAL 19
#<span class="keyword">define</span> TT_MAC_LANGID_URDU 20
#<span class="keyword">define</span> TT_MAC_LANGID_HINDI 21
#<span class="keyword">define</span> TT_MAC_LANGID_THAI 22
#<span class="keyword">define</span> TT_MAC_LANGID_KOREAN 23
#<span class="keyword">define</span> TT_MAC_LANGID_LITHUANIAN 24
#<span class="keyword">define</span> TT_MAC_LANGID_POLISH 25
#<span class="keyword">define</span> TT_MAC_LANGID_HUNGARIAN 26
#<span class="keyword">define</span> TT_MAC_LANGID_ESTONIAN 27
#<span class="keyword">define</span> TT_MAC_LANGID_LETTISH 28
#<span class="keyword">define</span> TT_MAC_LANGID_SAAMISK 29
#<span class="keyword">define</span> TT_MAC_LANGID_FAEROESE 30
#<span class="keyword">define</span> TT_MAC_LANGID_FARSI 31
#<span class="keyword">define</span> TT_MAC_LANGID_RUSSIAN 32
#<span class="keyword">define</span> TT_MAC_LANGID_CHINESE_SIMPLIFIED 33
#<span class="keyword">define</span> TT_MAC_LANGID_FLEMISH 34
#<span class="keyword">define</span> TT_MAC_LANGID_IRISH 35
#<span class="keyword">define</span> TT_MAC_LANGID_ALBANIAN 36
#<span class="keyword">define</span> TT_MAC_LANGID_ROMANIAN 37
#<span class="keyword">define</span> TT_MAC_LANGID_CZECH 38
#<span class="keyword">define</span> TT_MAC_LANGID_SLOVAK 39
#<span class="keyword">define</span> TT_MAC_LANGID_SLOVENIAN 40
#<span class="keyword">define</span> TT_MAC_LANGID_YIDDISH 41
#<span class="keyword">define</span> TT_MAC_LANGID_SERBIAN 42
#<span class="keyword">define</span> TT_MAC_LANGID_MACEDONIAN 43
#<span class="keyword">define</span> TT_MAC_LANGID_BULGARIAN 44
#<span class="keyword">define</span> TT_MAC_LANGID_UKRAINIAN 45
#<span class="keyword">define</span> TT_MAC_LANGID_BYELORUSSIAN 46
#<span class="keyword">define</span> TT_MAC_LANGID_UZBEK 47
#<span class="keyword">define</span> TT_MAC_LANGID_KAZAKH 48
#<span class="keyword">define</span> TT_MAC_LANGID_AZERBAIJANI 49
#<span class="keyword">define</span> TT_MAC_LANGID_AZERBAIJANI_CYRILLIC_SCRIPT 49
#<span class="keyword">define</span> TT_MAC_LANGID_AZERBAIJANI_ARABIC_SCRIPT 50
#<span class="keyword">define</span> TT_MAC_LANGID_ARMENIAN 51
#<span class="keyword">define</span> TT_MAC_LANGID_GEORGIAN 52
#<span class="keyword">define</span> TT_MAC_LANGID_MOLDAVIAN 53
#<span class="keyword">define</span> TT_MAC_LANGID_KIRGHIZ 54
#<span class="keyword">define</span> TT_MAC_LANGID_TAJIKI 55
#<span class="keyword">define</span> TT_MAC_LANGID_TURKMEN 56
#<span class="keyword">define</span> TT_MAC_LANGID_MONGOLIAN 57
#<span class="keyword">define</span> TT_MAC_LANGID_MONGOLIAN_MONGOLIAN_SCRIPT 57
#<span class="keyword">define</span> TT_MAC_LANGID_MONGOLIAN_CYRILLIC_SCRIPT 58
#<span class="keyword">define</span> TT_MAC_LANGID_PASHTO 59
#<span class="keyword">define</span> TT_MAC_LANGID_KURDISH 60
#<span class="keyword">define</span> TT_MAC_LANGID_KASHMIRI 61
#<span class="keyword">define</span> TT_MAC_LANGID_SINDHI 62
#<span class="keyword">define</span> TT_MAC_LANGID_TIBETAN 63
#<span class="keyword">define</span> TT_MAC_LANGID_NEPALI 64
#<span class="keyword">define</span> TT_MAC_LANGID_SANSKRIT 65
#<span class="keyword">define</span> TT_MAC_LANGID_MARATHI 66
#<span class="keyword">define</span> TT_MAC_LANGID_BENGALI 67
#<span class="keyword">define</span> TT_MAC_LANGID_ASSAMESE 68
#<span class="keyword">define</span> TT_MAC_LANGID_GUJARATI 69
#<span class="keyword">define</span> TT_MAC_LANGID_PUNJABI 70
#<span class="keyword">define</span> TT_MAC_LANGID_ORIYA 71
#<span class="keyword">define</span> TT_MAC_LANGID_MALAYALAM 72
#<span class="keyword">define</span> TT_MAC_LANGID_KANNADA 73
#<span class="keyword">define</span> TT_MAC_LANGID_TAMIL 74
#<span class="keyword">define</span> TT_MAC_LANGID_TELUGU 75
#<span class="keyword">define</span> TT_MAC_LANGID_SINHALESE 76
#<span class="keyword">define</span> TT_MAC_LANGID_BURMESE 77
#<span class="keyword">define</span> TT_MAC_LANGID_KHMER 78
#<span class="keyword">define</span> TT_MAC_LANGID_LAO 79
#<span class="keyword">define</span> TT_MAC_LANGID_VIETNAMESE 80
#<span class="keyword">define</span> TT_MAC_LANGID_INDONESIAN 81
#<span class="keyword">define</span> TT_MAC_LANGID_TAGALOG 82
#<span class="keyword">define</span> TT_MAC_LANGID_MALAY_ROMAN_SCRIPT 83
#<span class="keyword">define</span> TT_MAC_LANGID_MALAY_ARABIC_SCRIPT 84
#<span class="keyword">define</span> TT_MAC_LANGID_AMHARIC 85
#<span class="keyword">define</span> TT_MAC_LANGID_TIGRINYA 86
#<span class="keyword">define</span> TT_MAC_LANGID_GALLA 87
#<span class="keyword">define</span> TT_MAC_LANGID_SOMALI 88
#<span class="keyword">define</span> TT_MAC_LANGID_SWAHILI 89
#<span class="keyword">define</span> TT_MAC_LANGID_RUANDA 90
#<span class="keyword">define</span> TT_MAC_LANGID_RUNDI 91
#<span class="keyword">define</span> TT_MAC_LANGID_CHEWA 92
#<span class="keyword">define</span> TT_MAC_LANGID_MALAGASY 93
#<span class="keyword">define</span> TT_MAC_LANGID_ESPERANTO 94
#<span class="keyword">define</span> TT_MAC_LANGID_WELSH 128
#<span class="keyword">define</span> TT_MAC_LANGID_BASQUE 129
#<span class="keyword">define</span> TT_MAC_LANGID_CATALAN 130
#<span class="keyword">define</span> TT_MAC_LANGID_LATIN 131
#<span class="keyword">define</span> TT_MAC_LANGID_QUECHUA 132
#<span class="keyword">define</span> TT_MAC_LANGID_GUARANI 133
#<span class="keyword">define</span> TT_MAC_LANGID_AYMARA 134
#<span class="keyword">define</span> TT_MAC_LANGID_TATAR 135
#<span class="keyword">define</span> TT_MAC_LANGID_UIGHUR 136
#<span class="keyword">define</span> TT_MAC_LANGID_DZONGKHA 137
#<span class="keyword">define</span> TT_MAC_LANGID_JAVANESE 138
#<span class="keyword">define</span> TT_MAC_LANGID_SUNDANESE 139
/* The following codes are new as of 2000-03-10 */
#<span class="keyword">define</span> TT_MAC_LANGID_GALICIAN 140
#<span class="keyword">define</span> TT_MAC_LANGID_AFRIKAANS 141
#<span class="keyword">define</span> TT_MAC_LANGID_BRETON 142
#<span class="keyword">define</span> TT_MAC_LANGID_INUKTITUT 143
#<span class="keyword">define</span> TT_MAC_LANGID_SCOTTISH_GAELIC 144
#<span class="keyword">define</span> TT_MAC_LANGID_MANX_GAELIC 145
#<span class="keyword">define</span> TT_MAC_LANGID_IRISH_GAELIC 146
#<span class="keyword">define</span> TT_MAC_LANGID_TONGAN 147
#<span class="keyword">define</span> TT_MAC_LANGID_GREEK_POLYTONIC 148
#<span class="keyword">define</span> TT_MAC_LANGID_GREELANDIC 149
#<span class="keyword">define</span> TT_MAC_LANGID_AZERBAIJANI_ROMAN_SCRIPT 150
</code></pre></div>
<p>Possible values of the language identifier field in the name records of the SFNT ‘name’ table if the ‘platform’ identifier code is <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_MACINTOSH</a></code>. These values are also used as return values for function <code><a href="ft2-truetype_tables.html#ft_get_cmap_language_id">FT_Get_CMap_Language_ID</a></code>.</p>
<p>The canonical source for Apple's IDs is</p>
<p><a href="https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html">https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html</a></p>
<hr>
<h2 id="tt_ms_langid_xxx">TT_MS_LANGID_XXX<a class="headerlink" href="#tt_ms_langid_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_SAUDI_ARABIA 0x0401
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_IRAQ 0x0801
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_EGYPT 0x0C01
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_LIBYA 0x1001
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_ALGERIA 0x1401
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_MOROCCO 0x1801
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_TUNISIA 0x1C01
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_OMAN 0x2001
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_YEMEN 0x2401
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_SYRIA 0x2801
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_JORDAN 0x2C01
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_LEBANON 0x3001
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_KUWAIT 0x3401
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_UAE 0x3801
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_BAHRAIN 0x3C01
#<span class="keyword">define</span> TT_MS_LANGID_ARABIC_QATAR 0x4001
#<span class="keyword">define</span> TT_MS_LANGID_BULGARIAN_BULGARIA 0x0402
#<span class="keyword">define</span> TT_MS_LANGID_CATALAN_CATALAN 0x0403
#<span class="keyword">define</span> TT_MS_LANGID_CHINESE_TAIWAN 0x0404
#<span class="keyword">define</span> TT_MS_LANGID_CHINESE_PRC 0x0804
#<span class="keyword">define</span> TT_MS_LANGID_CHINESE_HONG_KONG 0x0C04
#<span class="keyword">define</span> TT_MS_LANGID_CHINESE_SINGAPORE 0x1004
#<span class="keyword">define</span> TT_MS_LANGID_CHINESE_MACAO 0x1404
#<span class="keyword">define</span> TT_MS_LANGID_CZECH_CZECH_REPUBLIC 0x0405
#<span class="keyword">define</span> TT_MS_LANGID_DANISH_DENMARK 0x0406
#<span class="keyword">define</span> TT_MS_LANGID_GERMAN_GERMANY 0x0407
#<span class="keyword">define</span> TT_MS_LANGID_GERMAN_SWITZERLAND 0x0807
#<span class="keyword">define</span> TT_MS_LANGID_GERMAN_AUSTRIA 0x0C07
#<span class="keyword">define</span> TT_MS_LANGID_GERMAN_LUXEMBOURG 0x1007
#<span class="keyword">define</span> TT_MS_LANGID_GERMAN_LIECHTENSTEIN 0x1407
#<span class="keyword">define</span> TT_MS_LANGID_GREEK_GREECE 0x0408
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_UNITED_STATES 0x0409
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_UNITED_KINGDOM 0x0809
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_AUSTRALIA 0x0C09
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_CANADA 0x1009
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_NEW_ZEALAND 0x1409
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_IRELAND 0x1809
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_SOUTH_AFRICA 0x1C09
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_JAMAICA 0x2009
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_CARIBBEAN 0x2409
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_BELIZE 0x2809
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_TRINIDAD 0x2C09
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_ZIMBABWE 0x3009
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_PHILIPPINES 0x3409
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_INDIA 0x4009
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_MALAYSIA 0x4409
#<span class="keyword">define</span> TT_MS_LANGID_ENGLISH_SINGAPORE 0x4809
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_SPAIN_TRADITIONAL_SORT 0x040A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_MEXICO 0x080A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_SPAIN_MODERN_SORT 0x0C0A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_GUATEMALA 0x100A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_COSTA_RICA 0x140A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_PANAMA 0x180A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_DOMINICAN_REPUBLIC 0x1C0A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_VENEZUELA 0x200A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_COLOMBIA 0x240A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_PERU 0x280A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_ARGENTINA 0x2C0A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_ECUADOR 0x300A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_CHILE 0x340A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_URUGUAY 0x380A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_PARAGUAY 0x3C0A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_BOLIVIA 0x400A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_EL_SALVADOR 0x440A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_HONDURAS 0x480A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_NICARAGUA 0x4C0A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_PUERTO_RICO 0x500A
#<span class="keyword">define</span> TT_MS_LANGID_SPANISH_UNITED_STATES 0x540A
#<span class="keyword">define</span> TT_MS_LANGID_FINNISH_FINLAND 0x040B
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_FRANCE 0x040C
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_BELGIUM 0x080C
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_CANADA 0x0C0C
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_SWITZERLAND 0x100C
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_LUXEMBOURG 0x140C
#<span class="keyword">define</span> TT_MS_LANGID_FRENCH_MONACO 0x180C
#<span class="keyword">define</span> TT_MS_LANGID_HEBREW_ISRAEL 0x040D
#<span class="keyword">define</span> TT_MS_LANGID_HUNGARIAN_HUNGARY 0x040E
#<span class="keyword">define</span> TT_MS_LANGID_ICELANDIC_ICELAND 0x040F
#<span class="keyword">define</span> TT_MS_LANGID_ITALIAN_ITALY 0x0410
#<span class="keyword">define</span> TT_MS_LANGID_ITALIAN_SWITZERLAND 0x0810
#<span class="keyword">define</span> TT_MS_LANGID_JAPANESE_JAPAN 0x0411
#<span class="keyword">define</span> TT_MS_LANGID_KOREAN_KOREA 0x0412
#<span class="keyword">define</span> TT_MS_LANGID_DUTCH_NETHERLANDS 0x0413
#<span class="keyword">define</span> TT_MS_LANGID_DUTCH_BELGIUM 0x0813
#<span class="keyword">define</span> TT_MS_LANGID_NORWEGIAN_NORWAY_BOKMAL 0x0414
#<span class="keyword">define</span> TT_MS_LANGID_NORWEGIAN_NORWAY_NYNORSK 0x0814
#<span class="keyword">define</span> TT_MS_LANGID_POLISH_POLAND 0x0415
#<span class="keyword">define</span> TT_MS_LANGID_PORTUGUESE_BRAZIL 0x0416
#<span class="keyword">define</span> TT_MS_LANGID_PORTUGUESE_PORTUGAL 0x0816
#<span class="keyword">define</span> TT_MS_LANGID_ROMANSH_SWITZERLAND 0x0417
#<span class="keyword">define</span> TT_MS_LANGID_ROMANIAN_ROMANIA 0x0418
#<span class="keyword">define</span> TT_MS_LANGID_RUSSIAN_RUSSIA 0x0419
#<span class="keyword">define</span> TT_MS_LANGID_CROATIAN_CROATIA 0x041A
#<span class="keyword">define</span> TT_MS_LANGID_SERBIAN_SERBIA_LATIN 0x081A
#<span class="keyword">define</span> TT_MS_LANGID_SERBIAN_SERBIA_CYRILLIC 0x0C1A
#<span class="keyword">define</span> TT_MS_LANGID_CROATIAN_BOSNIA_HERZEGOVINA 0x101A
#<span class="keyword">define</span> TT_MS_LANGID_BOSNIAN_BOSNIA_HERZEGOVINA 0x141A
#<span class="keyword">define</span> TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_LATIN 0x181A
#<span class="keyword">define</span> TT_MS_LANGID_SERBIAN_BOSNIA_HERZ_CYRILLIC 0x1C1A
#<span class="keyword">define</span> TT_MS_LANGID_BOSNIAN_BOSNIA_HERZ_CYRILLIC 0x201A
#<span class="keyword">define</span> TT_MS_LANGID_SLOVAK_SLOVAKIA 0x041B
#<span class="keyword">define</span> TT_MS_LANGID_ALBANIAN_ALBANIA 0x041C
#<span class="keyword">define</span> TT_MS_LANGID_SWEDISH_SWEDEN 0x041D
#<span class="keyword">define</span> TT_MS_LANGID_SWEDISH_FINLAND 0x081D
#<span class="keyword">define</span> TT_MS_LANGID_THAI_THAILAND 0x041E
#<span class="keyword">define</span> TT_MS_LANGID_TURKISH_TURKEY 0x041F
#<span class="keyword">define</span> TT_MS_LANGID_URDU_PAKISTAN 0x0420
#<span class="keyword">define</span> TT_MS_LANGID_INDONESIAN_INDONESIA 0x0421
#<span class="keyword">define</span> TT_MS_LANGID_UKRAINIAN_UKRAINE 0x0422
#<span class="keyword">define</span> TT_MS_LANGID_BELARUSIAN_BELARUS 0x0423
#<span class="keyword">define</span> TT_MS_LANGID_SLOVENIAN_SLOVENIA 0x0424
#<span class="keyword">define</span> TT_MS_LANGID_ESTONIAN_ESTONIA 0x0425
#<span class="keyword">define</span> TT_MS_LANGID_LATVIAN_LATVIA 0x0426
#<span class="keyword">define</span> TT_MS_LANGID_LITHUANIAN_LITHUANIA 0x0427
#<span class="keyword">define</span> TT_MS_LANGID_TAJIK_TAJIKISTAN 0x0428
#<span class="keyword">define</span> TT_MS_LANGID_VIETNAMESE_VIET_NAM 0x042A
#<span class="keyword">define</span> TT_MS_LANGID_ARMENIAN_ARMENIA 0x042B
#<span class="keyword">define</span> TT_MS_LANGID_AZERI_AZERBAIJAN_LATIN 0x042C
#<span class="keyword">define</span> TT_MS_LANGID_AZERI_AZERBAIJAN_CYRILLIC 0x082C
#<span class="keyword">define</span> TT_MS_LANGID_BASQUE_BASQUE 0x042D
#<span class="keyword">define</span> TT_MS_LANGID_UPPER_SORBIAN_GERMANY 0x042E
#<span class="keyword">define</span> TT_MS_LANGID_LOWER_SORBIAN_GERMANY 0x082E
#<span class="keyword">define</span> TT_MS_LANGID_MACEDONIAN_MACEDONIA 0x042F
#<span class="keyword">define</span> TT_MS_LANGID_SETSWANA_SOUTH_AFRICA 0x0432
#<span class="keyword">define</span> TT_MS_LANGID_ISIXHOSA_SOUTH_AFRICA 0x0434
#<span class="keyword">define</span> TT_MS_LANGID_ISIZULU_SOUTH_AFRICA 0x0435
#<span class="keyword">define</span> TT_MS_LANGID_AFRIKAANS_SOUTH_AFRICA 0x0436
#<span class="keyword">define</span> TT_MS_LANGID_GEORGIAN_GEORGIA 0x0437
#<span class="keyword">define</span> TT_MS_LANGID_FAEROESE_FAEROE_ISLANDS 0x0438
#<span class="keyword">define</span> TT_MS_LANGID_HINDI_INDIA 0x0439
#<span class="keyword">define</span> TT_MS_LANGID_MALTESE_MALTA 0x043A
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_NORTHERN_NORWAY 0x043B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_NORTHERN_SWEDEN 0x083B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_NORTHERN_FINLAND 0x0C3B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_LULE_NORWAY 0x103B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_LULE_SWEDEN 0x143B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_SOUTHERN_NORWAY 0x183B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_SOUTHERN_SWEDEN 0x1C3B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_SKOLT_FINLAND 0x203B
#<span class="keyword">define</span> TT_MS_LANGID_SAMI_INARI_FINLAND 0x243B
#<span class="keyword">define</span> TT_MS_LANGID_IRISH_IRELAND 0x083C
#<span class="keyword">define</span> TT_MS_LANGID_MALAY_MALAYSIA 0x043E
#<span class="keyword">define</span> TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083E
#<span class="keyword">define</span> TT_MS_LANGID_KAZAKH_KAZAKHSTAN 0x043F
#<span class="keyword">define</span> TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */ 0x0440
#<span class="keyword">define</span> TT_MS_LANGID_KISWAHILI_KENYA 0x0441
#<span class="keyword">define</span> TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442
#<span class="keyword">define</span> TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443
#<span class="keyword">define</span> TT_MS_LANGID_UZBEK_UZBEKISTAN_CYRILLIC 0x0843
#<span class="keyword">define</span> TT_MS_LANGID_TATAR_RUSSIA 0x0444
#<span class="keyword">define</span> TT_MS_LANGID_BENGALI_INDIA 0x0445
#<span class="keyword">define</span> TT_MS_LANGID_BENGALI_BANGLADESH 0x0845
#<span class="keyword">define</span> TT_MS_LANGID_PUNJABI_INDIA 0x0446
#<span class="keyword">define</span> TT_MS_LANGID_GUJARATI_INDIA 0x0447
#<span class="keyword">define</span> TT_MS_LANGID_ODIA_INDIA 0x0448
#<span class="keyword">define</span> TT_MS_LANGID_TAMIL_INDIA 0x0449
#<span class="keyword">define</span> TT_MS_LANGID_TELUGU_INDIA 0x044A
#<span class="keyword">define</span> TT_MS_LANGID_KANNADA_INDIA 0x044B
#<span class="keyword">define</span> TT_MS_LANGID_MALAYALAM_INDIA 0x044C
#<span class="keyword">define</span> TT_MS_LANGID_ASSAMESE_INDIA 0x044D
#<span class="keyword">define</span> TT_MS_LANGID_MARATHI_INDIA 0x044E
#<span class="keyword">define</span> TT_MS_LANGID_SANSKRIT_INDIA 0x044F
#<span class="keyword">define</span> TT_MS_LANGID_MONGOLIAN_MONGOLIA /* Cyrillic */ 0x0450
#<span class="keyword">define</span> TT_MS_LANGID_MONGOLIAN_PRC 0x0850
#<span class="keyword">define</span> TT_MS_LANGID_TIBETAN_PRC 0x0451
#<span class="keyword">define</span> TT_MS_LANGID_WELSH_UNITED_KINGDOM 0x0452
#<span class="keyword">define</span> TT_MS_LANGID_KHMER_CAMBODIA 0x0453
#<span class="keyword">define</span> TT_MS_LANGID_LAO_LAOS 0x0454
#<span class="keyword">define</span> TT_MS_LANGID_GALICIAN_GALICIAN 0x0456
#<span class="keyword">define</span> TT_MS_LANGID_KONKANI_INDIA 0x0457
#<span class="keyword">define</span> TT_MS_LANGID_SYRIAC_SYRIA 0x045A
#<span class="keyword">define</span> TT_MS_LANGID_SINHALA_SRI_LANKA 0x045B
#<span class="keyword">define</span> TT_MS_LANGID_INUKTITUT_CANADA 0x045D
#<span class="keyword">define</span> TT_MS_LANGID_INUKTITUT_CANADA_LATIN 0x085D
#<span class="keyword">define</span> TT_MS_LANGID_AMHARIC_ETHIOPIA 0x045E
#<span class="keyword">define</span> TT_MS_LANGID_TAMAZIGHT_ALGERIA 0x085F
#<span class="keyword">define</span> TT_MS_LANGID_NEPALI_NEPAL 0x0461
#<span class="keyword">define</span> TT_MS_LANGID_FRISIAN_NETHERLANDS 0x0462
#<span class="keyword">define</span> TT_MS_LANGID_PASHTO_AFGHANISTAN 0x0463
#<span class="keyword">define</span> TT_MS_LANGID_FILIPINO_PHILIPPINES 0x0464
#<span class="keyword">define</span> TT_MS_LANGID_DHIVEHI_MALDIVES 0x0465
#<span class="keyword">define</span> TT_MS_LANGID_HAUSA_NIGERIA 0x0468
#<span class="keyword">define</span> TT_MS_LANGID_YORUBA_NIGERIA 0x046A
#<span class="keyword">define</span> TT_MS_LANGID_QUECHUA_BOLIVIA 0x046B
#<span class="keyword">define</span> TT_MS_LANGID_QUECHUA_ECUADOR 0x086B
#<span class="keyword">define</span> TT_MS_LANGID_QUECHUA_PERU 0x0C6B
#<span class="keyword">define</span> TT_MS_LANGID_SESOTHO_SA_LEBOA_SOUTH_AFRICA 0x046C
#<span class="keyword">define</span> TT_MS_LANGID_BASHKIR_RUSSIA 0x046D
#<span class="keyword">define</span> TT_MS_LANGID_LUXEMBOURGISH_LUXEMBOURG 0x046E
#<span class="keyword">define</span> TT_MS_LANGID_GREENLANDIC_GREENLAND 0x046F
#<span class="keyword">define</span> TT_MS_LANGID_IGBO_NIGERIA 0x0470
#<span class="keyword">define</span> TT_MS_LANGID_YI_PRC 0x0478
#<span class="keyword">define</span> TT_MS_LANGID_MAPUDUNGUN_CHILE 0x047A
#<span class="keyword">define</span> TT_MS_LANGID_MOHAWK_MOHAWK 0x047C
#<span class="keyword">define</span> TT_MS_LANGID_BRETON_FRANCE 0x047E
#<span class="keyword">define</span> TT_MS_LANGID_UIGHUR_PRC 0x0480
#<span class="keyword">define</span> TT_MS_LANGID_MAORI_NEW_ZEALAND 0x0481
#<span class="keyword">define</span> TT_MS_LANGID_OCCITAN_FRANCE 0x0482
#<span class="keyword">define</span> TT_MS_LANGID_CORSICAN_FRANCE 0x0483
#<span class="keyword">define</span> TT_MS_LANGID_ALSATIAN_FRANCE 0x0484
#<span class="keyword">define</span> TT_MS_LANGID_YAKUT_RUSSIA 0x0485
#<span class="keyword">define</span> TT_MS_LANGID_KICHE_GUATEMALA 0x0486
#<span class="keyword">define</span> TT_MS_LANGID_KINYARWANDA_RWANDA 0x0487
#<span class="keyword">define</span> TT_MS_LANGID_WOLOF_SENEGAL 0x0488
#<span class="keyword">define</span> TT_MS_LANGID_DARI_AFGHANISTAN 0x048C
</code></pre></div>
<p>Possible values of the language identifier field in the name records of the SFNT ‘name’ table if the ‘platform’ identifier code is <code><a href="ft2-truetype_tables.html#tt_platform_xxx">TT_PLATFORM_MICROSOFT</a></code>. These values are also used as return values for function <code><a href="ft2-truetype_tables.html#ft_get_cmap_language_id">FT_Get_CMap_Language_ID</a></code>.</p>
<p>The canonical source for Microsoft's IDs is</p>
<p><a href="https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings">https://docs.microsoft.com/en-us/windows/desktop/Intl/language-identifier-constants-and-strings</a> ,</p>
<p>however, we only provide macros for language identifiers present in the OpenType specification: Microsoft has abandoned the concept of LCIDs (language code identifiers), and format 1 of the ‘name’ table provides a better mechanism for languages not covered here.</p>
<p>More legacy values not listed in the reference can be found in the <code><a href="ft2-header_file_macros.html#ft_truetype_ids_h">FT_TRUETYPE_IDS_H</a></code> header file.</p>
<hr>
<h2 id="tt_name_id_xxx">TT_NAME_ID_XXX<a class="headerlink" href="#tt_name_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> TT_NAME_ID_COPYRIGHT 0
#<span class="keyword">define</span> TT_NAME_ID_FONT_FAMILY 1
#<span class="keyword">define</span> TT_NAME_ID_FONT_SUBFAMILY 2
#<span class="keyword">define</span> TT_NAME_ID_UNIQUE_ID 3
#<span class="keyword">define</span> TT_NAME_ID_FULL_NAME 4
#<span class="keyword">define</span> TT_NAME_ID_VERSION_STRING 5
#<span class="keyword">define</span> TT_NAME_ID_PS_NAME 6
#<span class="keyword">define</span> TT_NAME_ID_TRADEMARK 7
/* the following values are from the OpenType spec */
#<span class="keyword">define</span> TT_NAME_ID_MANUFACTURER 8
#<span class="keyword">define</span> TT_NAME_ID_DESIGNER 9
#<span class="keyword">define</span> TT_NAME_ID_DESCRIPTION 10
#<span class="keyword">define</span> TT_NAME_ID_VENDOR_URL 11
#<span class="keyword">define</span> TT_NAME_ID_DESIGNER_URL 12
#<span class="keyword">define</span> TT_NAME_ID_LICENSE 13
#<span class="keyword">define</span> TT_NAME_ID_LICENSE_URL 14
/* number 15 is reserved */
#<span class="keyword">define</span> TT_NAME_ID_TYPOGRAPHIC_FAMILY 16
#<span class="keyword">define</span> TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY 17
#<span class="keyword">define</span> TT_NAME_ID_MAC_FULL_NAME 18
/* The following code is new as of 2000-01-21 */
#<span class="keyword">define</span> TT_NAME_ID_SAMPLE_TEXT 19
/* This is new in OpenType 1.3 */
#<span class="keyword">define</span> TT_NAME_ID_CID_FINDFONT_NAME 20
/* This is new in OpenType 1.5 */
#<span class="keyword">define</span> TT_NAME_ID_WWS_FAMILY 21
#<span class="keyword">define</span> TT_NAME_ID_WWS_SUBFAMILY 22
/* This is new in OpenType 1.7 */
#<span class="keyword">define</span> TT_NAME_ID_LIGHT_BACKGROUND 23
#<span class="keyword">define</span> TT_NAME_ID_DARK_BACKGROUND 24
/* This is new in OpenType 1.8 */
#<span class="keyword">define</span> TT_NAME_ID_VARIATIONS_PREFIX 25
/* these two values are deprecated */
#<span class="keyword">define</span> TT_NAME_ID_PREFERRED_FAMILY TT_NAME_ID_TYPOGRAPHIC_FAMILY
#<span class="keyword">define</span> TT_NAME_ID_PREFERRED_SUBFAMILY TT_NAME_ID_TYPOGRAPHIC_SUBFAMILY
</code></pre></div>
<p>Possible values of the ‘name’ identifier field in the name records of an SFNT ‘name’ table. These values are platform independent.</p>
<hr>
<h2 id="tt_ucr_xxx">TT_UCR_XXX<a class="headerlink" href="#tt_ucr_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_TRUETYPE_IDS_H (freetype/ttnameid.h).</p>
<div class = "codehilite"><pre><code> /* ulUnicodeRange1 */
/* --------------- */
/* Bit 0 Basic Latin */
#<span class="keyword">define</span> TT_UCR_BASIC_LATIN (1L << 0) /* U+0020-U+007E */
/* Bit 1 C1 Controls and Latin-1 Supplement */
#<span class="keyword">define</span> TT_UCR_LATIN1_SUPPLEMENT (1L << 1) /* U+0080-U+00FF */
/* Bit 2 Latin Extended-A */
#<span class="keyword">define</span> TT_UCR_LATIN_EXTENDED_A (1L << 2) /* U+0100-U+017F */
/* Bit 3 Latin Extended-B */
#<span class="keyword">define</span> TT_UCR_LATIN_EXTENDED_B (1L << 3) /* U+0180-U+024F */
/* Bit 4 IPA Extensions */
/* Phonetic Extensions */
/* Phonetic Extensions Supplement */
#<span class="keyword">define</span> TT_UCR_IPA_EXTENSIONS (1L << 4) /* U+0250-U+02AF */
/* U+1D00-U+1D7F */
/* U+1D80-U+1DBF */
/* Bit 5 Spacing Modifier Letters */
/* Modifier Tone Letters */
#<span class="keyword">define</span> TT_UCR_SPACING_MODIFIER (1L << 5) /* U+02B0-U+02FF */
/* U+A700-U+A71F */
/* Bit 6 Combining Diacritical Marks */
/* Combining Diacritical Marks Supplement */
#<span class="keyword">define</span> TT_UCR_COMBINING_DIACRITICAL_MARKS (1L << 6) /* U+0300-U+036F */
/* U+1DC0-U+1DFF */
/* Bit 7 Greek and Coptic */
#<span class="keyword">define</span> TT_UCR_GREEK (1L << 7) /* U+0370-U+03FF */
/* Bit 8 Coptic */
#<span class="keyword">define</span> TT_UCR_COPTIC (1L << 8) /* U+2C80-U+2CFF */
/* Bit 9 Cyrillic */
/* Cyrillic Supplement */
/* Cyrillic Extended-A */
/* Cyrillic Extended-B */
#<span class="keyword">define</span> TT_UCR_CYRILLIC (1L << 9) /* U+0400-U+04FF */
/* U+0500-U+052F */
/* U+2DE0-U+2DFF */
/* U+A640-U+A69F */
/* Bit 10 Armenian */
#<span class="keyword">define</span> TT_UCR_ARMENIAN (1L << 10) /* U+0530-U+058F */
/* Bit 11 Hebrew */
#<span class="keyword">define</span> TT_UCR_HEBREW (1L << 11) /* U+0590-U+05FF */
/* Bit 12 Vai */
#<span class="keyword">define</span> TT_UCR_VAI (1L << 12) /* U+A500-U+A63F */
/* Bit 13 Arabic */
/* Arabic Supplement */
#<span class="keyword">define</span> TT_UCR_ARABIC (1L << 13) /* U+0600-U+06FF */
/* U+0750-U+077F */
/* Bit 14 NKo */
#<span class="keyword">define</span> TT_UCR_NKO (1L << 14) /* U+07C0-U+07FF */
/* Bit 15 Devanagari */
#<span class="keyword">define</span> TT_UCR_DEVANAGARI (1L << 15) /* U+0900-U+097F */
/* Bit 16 Bengali */
#<span class="keyword">define</span> TT_UCR_BENGALI (1L << 16) /* U+0980-U+09FF */
/* Bit 17 Gurmukhi */
#<span class="keyword">define</span> TT_UCR_GURMUKHI (1L << 17) /* U+0A00-U+0A7F */
/* Bit 18 Gujarati */
#<span class="keyword">define</span> TT_UCR_GUJARATI (1L << 18) /* U+0A80-U+0AFF */
/* Bit 19 Oriya */
#<span class="keyword">define</span> TT_UCR_ORIYA (1L << 19) /* U+0B00-U+0B7F */
/* Bit 20 Tamil */
#<span class="keyword">define</span> TT_UCR_TAMIL (1L << 20) /* U+0B80-U+0BFF */
/* Bit 21 Telugu */
#<span class="keyword">define</span> TT_UCR_TELUGU (1L << 21) /* U+0C00-U+0C7F */
/* Bit 22 Kannada */
#<span class="keyword">define</span> TT_UCR_KANNADA (1L << 22) /* U+0C80-U+0CFF */
/* Bit 23 Malayalam */
#<span class="keyword">define</span> TT_UCR_MALAYALAM (1L << 23) /* U+0D00-U+0D7F */
/* Bit 24 Thai */
#<span class="keyword">define</span> TT_UCR_THAI (1L << 24) /* U+0E00-U+0E7F */
/* Bit 25 Lao */
#<span class="keyword">define</span> TT_UCR_LAO (1L << 25) /* U+0E80-U+0EFF */
/* Bit 26 Georgian */
/* Georgian Supplement */
#<span class="keyword">define</span> TT_UCR_GEORGIAN (1L << 26) /* U+10A0-U+10FF */
/* U+2D00-U+2D2F */
/* Bit 27 Balinese */
#<span class="keyword">define</span> TT_UCR_BALINESE (1L << 27) /* U+1B00-U+1B7F */
/* Bit 28 Hangul Jamo */
#<span class="keyword">define</span> TT_UCR_HANGUL_JAMO (1L << 28) /* U+1100-U+11FF */
/* Bit 29 Latin Extended Additional */
/* Latin Extended-C */
/* Latin Extended-D */
#<span class="keyword">define</span> TT_UCR_LATIN_EXTENDED_ADDITIONAL (1L << 29) /* U+1E00-U+1EFF */
/* U+2C60-U+2C7F */
/* U+A720-U+A7FF */
/* Bit 30 Greek Extended */
#<span class="keyword">define</span> TT_UCR_GREEK_EXTENDED (1L << 30) /* U+1F00-U+1FFF */
/* Bit 31 General Punctuation */
/* Supplemental Punctuation */
#<span class="keyword">define</span> TT_UCR_GENERAL_PUNCTUATION (1L << 31) /* U+2000-U+206F */
/* U+2E00-U+2E7F */
/* ulUnicodeRange2 */
/* --------------- */
/* Bit 32 Superscripts And Subscripts */
#<span class="keyword">define</span> TT_UCR_SUPERSCRIPTS_SUBSCRIPTS (1L << 0) /* U+2070-U+209F */
/* Bit 33 Currency Symbols */
#<span class="keyword">define</span> TT_UCR_CURRENCY_SYMBOLS (1L << 1) /* U+20A0-U+20CF */
/* Bit 34 Combining Diacritical Marks For Symbols */
#<span class="keyword">define</span> TT_UCR_COMBINING_DIACRITICAL_MARKS_SYMB \
(1L << 2) /* U+20D0-U+20FF */
/* Bit 35 Letterlike Symbols */
#<span class="keyword">define</span> TT_UCR_LETTERLIKE_SYMBOLS (1L << 3) /* U+2100-U+214F */
/* Bit 36 Number Forms */
#<span class="keyword">define</span> TT_UCR_NUMBER_FORMS (1L << 4) /* U+2150-U+218F */
/* Bit 37 Arrows */
/* Supplemental Arrows-A */
/* Supplemental Arrows-B */
/* Miscellaneous Symbols and Arrows */
#<span class="keyword">define</span> TT_UCR_ARROWS (1L << 5) /* U+2190-U+21FF */
/* U+27F0-U+27FF */
/* U+2900-U+297F */
/* U+2B00-U+2BFF */
/* Bit 38 Mathematical Operators */
/* Supplemental Mathematical Operators */
/* Miscellaneous Mathematical Symbols-A */
/* Miscellaneous Mathematical Symbols-B */
#<span class="keyword">define</span> TT_UCR_MATHEMATICAL_OPERATORS (1L << 6) /* U+2200-U+22FF */
/* U+2A00-U+2AFF */
/* U+27C0-U+27EF */
/* U+2980-U+29FF */
/* Bit 39 Miscellaneous Technical */
#<span class="keyword">define</span> TT_UCR_MISCELLANEOUS_TECHNICAL (1L << 7) /* U+2300-U+23FF */
/* Bit 40 Control Pictures */
#<span class="keyword">define</span> TT_UCR_CONTROL_PICTURES (1L << 8) /* U+2400-U+243F */
/* Bit 41 Optical Character Recognition */
#<span class="keyword">define</span> TT_UCR_OCR (1L << 9) /* U+2440-U+245F */
/* Bit 42 Enclosed Alphanumerics */
#<span class="keyword">define</span> TT_UCR_ENCLOSED_ALPHANUMERICS (1L << 10) /* U+2460-U+24FF */
/* Bit 43 Box Drawing */
#<span class="keyword">define</span> TT_UCR_BOX_DRAWING (1L << 11) /* U+2500-U+257F */
/* Bit 44 Block Elements */
#<span class="keyword">define</span> TT_UCR_BLOCK_ELEMENTS (1L << 12) /* U+2580-U+259F */
/* Bit 45 Geometric Shapes */
#<span class="keyword">define</span> TT_UCR_GEOMETRIC_SHAPES (1L << 13) /* U+25A0-U+25FF */
/* Bit 46 Miscellaneous Symbols */
#<span class="keyword">define</span> TT_UCR_MISCELLANEOUS_SYMBOLS (1L << 14) /* U+2600-U+26FF */
/* Bit 47 Dingbats */
#<span class="keyword">define</span> TT_UCR_DINGBATS (1L << 15) /* U+2700-U+27BF */
/* Bit 48 CJK Symbols and Punctuation */
#<span class="keyword">define</span> TT_UCR_CJK_SYMBOLS (1L << 16) /* U+3000-U+303F */
/* Bit 49 Hiragana */
#<span class="keyword">define</span> TT_UCR_HIRAGANA (1L << 17) /* U+3040-U+309F */
/* Bit 50 Katakana */
/* Katakana Phonetic Extensions */
#<span class="keyword">define</span> TT_UCR_KATAKANA (1L << 18) /* U+30A0-U+30FF */
/* U+31F0-U+31FF */
/* Bit 51 Bopomofo */
/* Bopomofo Extended */
#<span class="keyword">define</span> TT_UCR_BOPOMOFO (1L << 19) /* U+3100-U+312F */
/* U+31A0-U+31BF */
/* Bit 52 Hangul Compatibility Jamo */
#<span class="keyword">define</span> TT_UCR_HANGUL_COMPATIBILITY_JAMO (1L << 20) /* U+3130-U+318F */
/* Bit 53 Phags-Pa */
#<span class="keyword">define</span> TT_UCR_CJK_MISC (1L << 21) /* U+A840-U+A87F */
#<span class="keyword">define</span> TT_UCR_KANBUN TT_UCR_CJK_MISC /* deprecated */
#<span class="keyword">define</span> TT_UCR_PHAGSPA
/* Bit 54 Enclosed CJK Letters and Months */
#<span class="keyword">define</span> TT_UCR_ENCLOSED_CJK_LETTERS_MONTHS (1L << 22) /* U+3200-U+32FF */
/* Bit 55 CJK Compatibility */
#<span class="keyword">define</span> TT_UCR_CJK_COMPATIBILITY (1L << 23) /* U+3300-U+33FF */
/* Bit 56 Hangul Syllables */
#<span class="keyword">define</span> TT_UCR_HANGUL (1L << 24) /* U+AC00-U+D7A3 */
/* Bit 57 High Surrogates */
/* High Private Use Surrogates */
/* Low Surrogates */
/* According to OpenType specs v.1.3+, */
/* setting bit 57 implies that there is */
/* at least one codepoint beyond the */
/* Basic Multilingual Plane that is */
/* supported by this font. So it really */
/* means >= U+10000. */
#<span class="keyword">define</span> TT_UCR_SURROGATES (1L << 25) /* U+D800-U+DB7F */
/* U+DB80-U+DBFF */
/* U+DC00-U+DFFF */
#<span class="keyword">define</span> TT_UCR_NON_PLANE_0 TT_UCR_SURROGATES
/* Bit 58 Phoenician */
#<span class="keyword">define</span> TT_UCR_PHOENICIAN (1L << 26) /*U+10900-U+1091F*/
/* Bit 59 CJK Unified Ideographs */
/* CJK Radicals Supplement */
/* Kangxi Radicals */
/* Ideographic Description Characters */
/* CJK Unified Ideographs Extension A */
/* CJK Unified Ideographs Extension B */
/* Kanbun */
#<span class="keyword">define</span> TT_UCR_CJK_UNIFIED_IDEOGRAPHS (1L << 27) /* U+4E00-U+9FFF */
/* U+2E80-U+2EFF */
/* U+2F00-U+2FDF */
/* U+2FF0-U+2FFF */
/* U+3400-U+4DB5 */
/*U+20000-U+2A6DF*/
/* U+3190-U+319F */
/* Bit 60 Private Use */
#<span class="keyword">define</span> TT_UCR_PRIVATE_USE (1L << 28) /* U+E000-U+F8FF */
/* Bit 61 CJK Strokes */
/* CJK Compatibility Ideographs */
/* CJK Compatibility Ideographs Supplement */
#<span class="keyword">define</span> TT_UCR_CJK_COMPATIBILITY_IDEOGRAPHS (1L << 29) /* U+31C0-U+31EF */
/* U+F900-U+FAFF */
/*U+2F800-U+2FA1F*/
/* Bit 62 Alphabetic Presentation Forms */
#<span class="keyword">define</span> TT_UCR_ALPHABETIC_PRESENTATION_FORMS (1L << 30) /* U+FB00-U+FB4F */
/* Bit 63 Arabic Presentation Forms-A */
#<span class="keyword">define</span> TT_UCR_ARABIC_PRESENTATION_FORMS_A (1L << 31) /* U+FB50-U+FDFF */
/* ulUnicodeRange3 */
/* --------------- */
/* Bit 64 Combining Half Marks */
#<span class="keyword">define</span> TT_UCR_COMBINING_HALF_MARKS (1L << 0) /* U+FE20-U+FE2F */
/* Bit 65 Vertical forms */
/* CJK Compatibility Forms */
#<span class="keyword">define</span> TT_UCR_CJK_COMPATIBILITY_FORMS (1L << 1) /* U+FE10-U+FE1F */
/* U+FE30-U+FE4F */
/* Bit 66 Small Form Variants */
#<span class="keyword">define</span> TT_UCR_SMALL_FORM_VARIANTS (1L << 2) /* U+FE50-U+FE6F */
/* Bit 67 Arabic Presentation Forms-B */
#<span class="keyword">define</span> TT_UCR_ARABIC_PRESENTATION_FORMS_B (1L << 3) /* U+FE70-U+FEFE */
/* Bit 68 Halfwidth and Fullwidth Forms */
#<span class="keyword">define</span> TT_UCR_HALFWIDTH_FULLWIDTH_FORMS (1L << 4) /* U+FF00-U+FFEF */
/* Bit 69 Specials */
#<span class="keyword">define</span> TT_UCR_SPECIALS (1L << 5) /* U+FFF0-U+FFFD */
/* Bit 70 Tibetan */
#<span class="keyword">define</span> TT_UCR_TIBETAN (1L << 6) /* U+0F00-U+0FFF */
/* Bit 71 Syriac */
#<span class="keyword">define</span> TT_UCR_SYRIAC (1L << 7) /* U+0700-U+074F */
/* Bit 72 Thaana */
#<span class="keyword">define</span> TT_UCR_THAANA (1L << 8) /* U+0780-U+07BF */
/* Bit 73 Sinhala */
#<span class="keyword">define</span> TT_UCR_SINHALA (1L << 9) /* U+0D80-U+0DFF */
/* Bit 74 Myanmar */
#<span class="keyword">define</span> TT_UCR_MYANMAR (1L << 10) /* U+1000-U+109F */
/* Bit 75 Ethiopic */
/* Ethiopic Supplement */
/* Ethiopic Extended */
#<span class="keyword">define</span> TT_UCR_ETHIOPIC (1L << 11) /* U+1200-U+137F */
/* U+1380-U+139F */
/* U+2D80-U+2DDF */
/* Bit 76 Cherokee */
#<span class="keyword">define</span> TT_UCR_CHEROKEE (1L << 12) /* U+13A0-U+13FF */
/* Bit 77 Unified Canadian Aboriginal Syllabics */
#<span class="keyword">define</span> TT_UCR_CANADIAN_ABORIGINAL_SYLLABICS (1L << 13) /* U+1400-U+167F */
/* Bit 78 Ogham */
#<span class="keyword">define</span> TT_UCR_OGHAM (1L << 14) /* U+1680-U+169F */
/* Bit 79 Runic */
#<span class="keyword">define</span> TT_UCR_RUNIC (1L << 15) /* U+16A0-U+16FF */
/* Bit 80 Khmer */
/* Khmer Symbols */
#<span class="keyword">define</span> TT_UCR_KHMER (1L << 16) /* U+1780-U+17FF */
/* U+19E0-U+19FF */
/* Bit 81 Mongolian */
#<span class="keyword">define</span> TT_UCR_MONGOLIAN (1L << 17) /* U+1800-U+18AF */
/* Bit 82 Braille Patterns */
#<span class="keyword">define</span> TT_UCR_BRAILLE (1L << 18) /* U+2800-U+28FF */
/* Bit 83 Yi Syllables */
/* Yi Radicals */
#<span class="keyword">define</span> TT_UCR_YI (1L << 19) /* U+A000-U+A48F */
/* U+A490-U+A4CF */
/* Bit 84 Tagalog */
/* Hanunoo */
/* Buhid */
/* Tagbanwa */
#<span class="keyword">define</span> TT_UCR_PHILIPPINE (1L << 20) /* U+1700-U+171F */
/* U+1720-U+173F */
/* U+1740-U+175F */
/* U+1760-U+177F */
/* Bit 85 Old Italic */
#<span class="keyword">define</span> TT_UCR_OLD_ITALIC (1L << 21) /*U+10300-U+1032F*/
/* Bit 86 Gothic */
#<span class="keyword">define</span> TT_UCR_GOTHIC (1L << 22) /*U+10330-U+1034F*/
/* Bit 87 Deseret */
#<span class="keyword">define</span> TT_UCR_DESERET (1L << 23) /*U+10400-U+1044F*/
/* Bit 88 Byzantine Musical Symbols */
/* Musical Symbols */
/* Ancient Greek Musical Notation */
#<span class="keyword">define</span> TT_UCR_MUSICAL_SYMBOLS (1L << 24) /*U+1D000-U+1D0FF*/
/*U+1D100-U+1D1FF*/
/*U+1D200-U+1D24F*/
/* Bit 89 Mathematical Alphanumeric Symbols */
#<span class="keyword">define</span> TT_UCR_MATH_ALPHANUMERIC_SYMBOLS (1L << 25) /*U+1D400-U+1D7FF*/
/* Bit 90 Private Use (plane 15) */
/* Private Use (plane 16) */
#<span class="keyword">define</span> TT_UCR_PRIVATE_USE_SUPPLEMENTARY (1L << 26) /*U+F0000-U+FFFFD*/
/*U+100000-U+10FFFD*/
/* Bit 91 Variation Selectors */
/* Variation Selectors Supplement */
#<span class="keyword">define</span> TT_UCR_VARIATION_SELECTORS (1L << 27) /* U+FE00-U+FE0F */
/*U+E0100-U+E01EF*/
/* Bit 92 Tags */
#<span class="keyword">define</span> TT_UCR_TAGS (1L << 28) /*U+E0000-U+E007F*/
/* Bit 93 Limbu */
#<span class="keyword">define</span> TT_UCR_LIMBU (1L << 29) /* U+1900-U+194F */
/* Bit 94 Tai Le */
#<span class="keyword">define</span> TT_UCR_TAI_LE (1L << 30) /* U+1950-U+197F */
/* Bit 95 New Tai Lue */
#<span class="keyword">define</span> TT_UCR_NEW_TAI_LUE (1L << 31) /* U+1980-U+19DF */
/* ulUnicodeRange4 */
/* --------------- */
/* Bit 96 Buginese */
#<span class="keyword">define</span> TT_UCR_BUGINESE (1L << 0) /* U+1A00-U+1A1F */
/* Bit 97 Glagolitic */
#<span class="keyword">define</span> TT_UCR_GLAGOLITIC (1L << 1) /* U+2C00-U+2C5F */
/* Bit 98 Tifinagh */
#<span class="keyword">define</span> TT_UCR_TIFINAGH (1L << 2) /* U+2D30-U+2D7F */
/* Bit 99 Yijing Hexagram Symbols */
#<span class="keyword">define</span> TT_UCR_YIJING (1L << 3) /* U+4DC0-U+4DFF */
/* Bit 100 Syloti Nagri */
#<span class="keyword">define</span> TT_UCR_SYLOTI_NAGRI (1L << 4) /* U+A800-U+A82F */
/* Bit 101 Linear B Syllabary */
/* Linear B Ideograms */
/* Aegean Numbers */
#<span class="keyword">define</span> TT_UCR_LINEAR_B (1L << 5) /*U+10000-U+1007F*/
/*U+10080-U+100FF*/
/*U+10100-U+1013F*/
/* Bit 102 Ancient Greek Numbers */
#<span class="keyword">define</span> TT_UCR_ANCIENT_GREEK_NUMBERS (1L << 6) /*U+10140-U+1018F*/
/* Bit 103 Ugaritic */
#<span class="keyword">define</span> TT_UCR_UGARITIC (1L << 7) /*U+10380-U+1039F*/
/* Bit 104 Old Persian */
#<span class="keyword">define</span> TT_UCR_OLD_PERSIAN (1L << 8) /*U+103A0-U+103DF*/
/* Bit 105 Shavian */
#<span class="keyword">define</span> TT_UCR_SHAVIAN (1L << 9) /*U+10450-U+1047F*/
/* Bit 106 Osmanya */
#<span class="keyword">define</span> TT_UCR_OSMANYA (1L << 10) /*U+10480-U+104AF*/
/* Bit 107 Cypriot Syllabary */
#<span class="keyword">define</span> TT_UCR_CYPRIOT_SYLLABARY (1L << 11) /*U+10800-U+1083F*/
/* Bit 108 Kharoshthi */
#<span class="keyword">define</span> TT_UCR_KHAROSHTHI (1L << 12) /*U+10A00-U+10A5F*/
/* Bit 109 Tai Xuan Jing Symbols */
#<span class="keyword">define</span> TT_UCR_TAI_XUAN_JING (1L << 13) /*U+1D300-U+1D35F*/
/* Bit 110 Cuneiform */
/* Cuneiform Numbers and Punctuation */
#<span class="keyword">define</span> TT_UCR_CUNEIFORM (1L << 14) /*U+12000-U+123FF*/
/*U+12400-U+1247F*/
/* Bit 111 Counting Rod Numerals */
#<span class="keyword">define</span> TT_UCR_COUNTING_ROD_NUMERALS (1L << 15) /*U+1D360-U+1D37F*/
/* Bit 112 Sundanese */
#<span class="keyword">define</span> TT_UCR_SUNDANESE (1L << 16) /* U+1B80-U+1BBF */
/* Bit 113 Lepcha */
#<span class="keyword">define</span> TT_UCR_LEPCHA (1L << 17) /* U+1C00-U+1C4F */
/* Bit 114 Ol Chiki */
#<span class="keyword">define</span> TT_UCR_OL_CHIKI (1L << 18) /* U+1C50-U+1C7F */
/* Bit 115 Saurashtra */
#<span class="keyword">define</span> TT_UCR_SAURASHTRA (1L << 19) /* U+A880-U+A8DF */
/* Bit 116 Kayah Li */
#<span class="keyword">define</span> TT_UCR_KAYAH_LI (1L << 20) /* U+A900-U+A92F */
/* Bit 117 Rejang */
#<span class="keyword">define</span> TT_UCR_REJANG (1L << 21) /* U+A930-U+A95F */
/* Bit 118 Cham */
#<span class="keyword">define</span> TT_UCR_CHAM (1L << 22) /* U+AA00-U+AA5F */
/* Bit 119 Ancient Symbols */
#<span class="keyword">define</span> TT_UCR_ANCIENT_SYMBOLS (1L << 23) /*U+10190-U+101CF*/
/* Bit 120 Phaistos Disc */
#<span class="keyword">define</span> TT_UCR_PHAISTOS_DISC (1L << 24) /*U+101D0-U+101FF*/
/* Bit 121 Carian */
/* Lycian */
/* Lydian */
#<span class="keyword">define</span> TT_UCR_OLD_ANATOLIAN (1L << 25) /*U+102A0-U+102DF*/
/*U+10280-U+1029F*/
/*U+10920-U+1093F*/
/* Bit 122 Domino Tiles */
/* Mahjong Tiles */
#<span class="keyword">define</span> TT_UCR_GAME_TILES (1L << 26) /*U+1F030-U+1F09F*/
/*U+1F000-U+1F02F*/
/* Bit 123-127 Reserved for process-internal usage */
</code></pre></div>
<p>Possible bit mask values for the <code>ulUnicodeRangeX</code> fields in an SFNT ‘OS/2’ table.</p>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#controlling-freetype-modules">Controlling FreeType Modules</a> » The TrueType driver</p>
<hr />
<h1 id="the-truetype-driver">The TrueType driver<a class="headerlink" href="#the-truetype-driver" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>While FreeType's TrueType driver doesn't expose API functions by itself, it is possible to control its behaviour with <code><a href="ft2-module_management.html#ft_property_set">FT_Property_Set</a></code> and <code><a href="ft2-module_management.html#ft_property_get">FT_Property_Get</a></code>.</p>
<p>The TrueType driver's module name is ‘truetype’; a single property <code><a href="ft2-properties.html#interpreter-version">interpreter-version</a></code> is available, as documented in the ‘<a href="ft2-properties.html#properties">Driver properties</a>’ section.</p>
<p>To help understand the differences between interpreter versions, we introduce a list of definitions, kindly provided by Greg Hitchcock.</p>
<p><em>Bi-Level Rendering</em></p>
<p>Monochromatic rendering, exclusively used in the early days of TrueType by both Apple and Microsoft. Microsoft's GDI interface supported hinting of the right-side bearing point, such that the advance width could be non-linear. Most often this was done to achieve some level of glyph symmetry. To enable reasonable performance (e.g., not having to run hinting on all glyphs just to get the widths) there was a bit in the head table indicating if the side bearing was hinted, and additional tables, ‘hdmx’ and ‘LTSH’, to cache hinting widths across multiple sizes and device aspect ratios.</p>
<p><em>Font Smoothing</em></p>
<p>Microsoft's GDI implementation of anti-aliasing. Not traditional anti-aliasing as the outlines were hinted before the sampling. The widths matched the bi-level rendering.</p>
<p><em>ClearType Rendering</em></p>
<p>Technique that uses physical subpixels to improve rendering on LCD (and other) displays. Because of the higher resolution, many methods of improving symmetry in glyphs through hinting the right-side bearing were no longer necessary. This lead to what GDI calls ‘natural widths’ ClearType, see <a href="http://rastertragedy.com/RTRCh4.htm#Sec21">http://rastertragedy.com/RTRCh4.htm#Sec21</a>. Since hinting has extra resolution, most non-linearity went away, but it is still possible for hints to change the advance widths in this mode.</p>
<p><em>ClearType Compatible Widths</em></p>
<p>One of the earliest challenges with ClearType was allowing the implementation in GDI to be selected without requiring all UI and documents to reflow. To address this, a compatible method of rendering ClearType was added where the font hints are executed once to determine the width in bi-level rendering, and then re-run in ClearType, with the difference in widths being absorbed in the font hints for ClearType (mostly in the white space of hints); see <a href="http://rastertragedy.com/RTRCh4.htm#Sec20">http://rastertragedy.com/RTRCh4.htm#Sec20</a>. Somewhat by definition, compatible width ClearType allows for non-linear widths, but only when the bi-level version has non-linear widths.</p>
<p><em>ClearType Subpixel Positioning</em></p>
<p>One of the nice benefits of ClearType is the ability to more crisply display fractional widths; unfortunately, the GDI model of integer bitmaps did not support this. However, the WPF and Direct Write frameworks do support fractional widths. DWrite calls this ‘natural mode’, not to be confused with GDI's ‘natural widths’. Subpixel positioning, in the current implementation of Direct Write, unfortunately does not support hinted advance widths, see <a href="http://rastertragedy.com/RTRCh4.htm#Sec22">http://rastertragedy.com/RTRCh4.htm#Sec22</a>. Note that the TrueType interpreter fully allows the advance width to be adjusted in this mode, just the DWrite client will ignore those changes.</p>
<p><em>ClearType Backward Compatibility</em></p>
<p>This is a set of exceptions made in the TrueType interpreter to minimize hinting techniques that were problematic with the extra resolution of ClearType; see <a href="http://rastertragedy.com/RTRCh4.htm#Sec1">http://rastertragedy.com/RTRCh4.htm#Sec1</a> and <a href="https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx">https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx</a>. This technique is not to be confused with ClearType compatible widths. ClearType backward compatibility has no direct impact on changing advance widths, but there might be an indirect impact on disabling some deltas. This could be worked around in backward compatibility mode.</p>
<p><em>Native ClearType Mode</em></p>
<p>(Not to be confused with ‘natural widths’.) This mode removes all the exceptions in the TrueType interpreter when running with ClearType. Any issues on widths would still apply, though.</p>
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FreeType's header inclusion scheme
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Glyph Layer Management
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Glyph Management
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Mac Specific Interface
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Size Management
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Header File Macros
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TrueType Tables
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Type 1 Tables
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Type 1 Tables
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Synopsis
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PS_FontInfoRec
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PS_FontInfo
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PS_PrivateRec
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PS_Private
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CID_FaceDictRec
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CID_FaceDict
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CID_FaceInfoRec
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CID_FaceInfo
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FT_Has_PS_Glyph_Names
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FT_Get_PS_Font_Info
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FT_Get_PS_Font_Private
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FT_Get_PS_Font_Value
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CID Fonts
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PFR Fonts
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OpenType SVG Fonts
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Font Formats
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The auto-hinter
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The CFF driver
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The Type 1 and CID drivers
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The TrueType driver
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The PCF driver
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The SVG driver
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Driver properties
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Parameter Tags
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Computations
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List Processing
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Outline Processing
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Quick retrieval of advance values
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Bitmap Handling
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Scanline Converter
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Glyph Stroker
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System Interface
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Module Management
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GZIP Streams
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LZW Streams
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BZIP2 Streams
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Error Codes
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Error Enumerations
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Error Code Values
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TrueTypeGX/AAT Validation
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<a href="ft2-truetype_engine.html" class="md-nav__link">
The TrueType Engine
</a>
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<a href="ft2-ot_validation.html" class="md-nav__link">
OpenType Validation
</a>
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</div>
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
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<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
<label class="md-nav__title" for="__toc">
<span class="md-nav__icon md-icon"></span>
Table of contents
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<li class="md-nav__item">
<a href="#synopsis" class="md-nav__link">
Synopsis
</a>
</li>
<li class="md-nav__item">
<a href="#ps_fontinforec" class="md-nav__link">
PS_FontInfoRec
</a>
</li>
<li class="md-nav__item">
<a href="#ps_fontinfo" class="md-nav__link">
PS_FontInfo
</a>
</li>
<li class="md-nav__item">
<a href="#ps_privaterec" class="md-nav__link">
PS_PrivateRec
</a>
</li>
<li class="md-nav__item">
<a href="#ps_private" class="md-nav__link">
PS_Private
</a>
</li>
<li class="md-nav__item">
<a href="#cid_facedictrec" class="md-nav__link">
CID_FaceDictRec
</a>
</li>
<li class="md-nav__item">
<a href="#cid_facedict" class="md-nav__link">
CID_FaceDict
</a>
</li>
<li class="md-nav__item">
<a href="#cid_faceinforec" class="md-nav__link">
CID_FaceInfoRec
</a>
</li>
<li class="md-nav__item">
<a href="#cid_faceinfo" class="md-nav__link">
CID_FaceInfo
</a>
</li>
<li class="md-nav__item">
<a href="#ft_has_ps_glyph_names" class="md-nav__link">
FT_Has_PS_Glyph_Names
</a>
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<li class="md-nav__item">
<a href="#ft_get_ps_font_info" class="md-nav__link">
FT_Get_PS_Font_Info
</a>
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<a href="#ft_get_ps_font_private" class="md-nav__link">
FT_Get_PS_Font_Private
</a>
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<a href="#ft_get_ps_font_value" class="md-nav__link">
FT_Get_PS_Font_Value
</a>
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<li class="md-nav__item">
<a href="#t1_blend_flags" class="md-nav__link">
T1_Blend_Flags
</a>
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T1_EncodingType
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<a href="#ps_dict_keys" class="md-nav__link">
PS_Dict_Keys
</a>
</li>
<li class="md-nav__item">
<a href="#t1_fontinfo" class="md-nav__link">
T1_FontInfo
</a>
</li>
<li class="md-nav__item">
<a href="#t1_private" class="md-nav__link">
T1_Private
</a>
</li>
<li class="md-nav__item">
<a href="#cid_fontdict" class="md-nav__link">
CID_FontDict
</a>
</li>
<li class="md-nav__item">
<a href="#cid_info" class="md-nav__link">
CID_Info
</a>
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<div class="md-content" data-md-component="content">
<article class="md-content__inner md-typeset">
<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#format-specific-api">Format-Specific API</a> » Type 1 Tables</p>
<hr />
<h1 id="type-1-tables">Type 1 Tables<a class="headerlink" href="#type-1-tables" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section contains the definition of Type 1-specific tables, including structures related to other PostScript font formats.</p>
<h2 id="ps_fontinforec">PS_FontInfoRec<a class="headerlink" href="#ps_fontinforec" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> PS_FontInfoRec_
{
<a href="ft2-basic_types.html#ft_string">FT_String</a>* version;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* notice;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* full_name;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* family_name;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* weight;
<a href="ft2-basic_types.html#ft_long">FT_Long</a> italic_angle;
<a href="ft2-basic_types.html#ft_bool">FT_Bool</a> is_fixed_pitch;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> underline_position;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> underline_thickness;
} <b>PS_FontInfoRec</b>;
</code></pre></div>
<p>A structure used to model a Type 1 or Type 2 FontInfo dictionary. Note that for Multiple Master fonts, each instance has its own FontInfo dictionary.</p>
<hr>
<h2 id="ps_fontinfo">PS_FontInfo<a class="headerlink" href="#ps_fontinfo" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> PS_FontInfoRec_* <b>PS_FontInfo</b>;
</code></pre></div>
<p>A handle to a <code><a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a></code> structure.</p>
<hr>
<h2 id="ps_privaterec">PS_PrivateRec<a class="headerlink" href="#ps_privaterec" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> PS_PrivateRec_
{
<a href="ft2-basic_types.html#ft_int">FT_Int</a> unique_id;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> lenIV;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_blue_values;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_other_blues;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_family_blues;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_family_other_blues;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> blue_values[14];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> other_blues[10];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> family_blues [14];
<a href="ft2-basic_types.html#ft_short">FT_Short</a> family_other_blues[10];
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> blue_scale;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> blue_shift;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> blue_fuzz;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> standard_width[1];
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> standard_height[1];
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_snap_widths;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> num_snap_heights;
<a href="ft2-basic_types.html#ft_bool">FT_Bool</a> force_bold;
<a href="ft2-basic_types.html#ft_bool">FT_Bool</a> round_stem_up;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> snap_widths [13]; /* including std width */
<a href="ft2-basic_types.html#ft_short">FT_Short</a> snap_heights[13]; /* including std height */
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> expansion_factor;
<a href="ft2-basic_types.html#ft_long">FT_Long</a> language_group;
<a href="ft2-basic_types.html#ft_long">FT_Long</a> password;
<a href="ft2-basic_types.html#ft_short">FT_Short</a> min_feature[2];
} <b>PS_PrivateRec</b>;
</code></pre></div>
<p>A structure used to model a Type 1 or Type 2 private dictionary. Note that for Multiple Master fonts, each instance has its own Private dictionary.</p>
<hr>
<h2 id="ps_private">PS_Private<a class="headerlink" href="#ps_private" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> PS_PrivateRec_* <b>PS_Private</b>;
</code></pre></div>
<p>A handle to a <code><a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a></code> structure.</p>
<hr>
<h2 id="cid_facedictrec">CID_FaceDictRec<a class="headerlink" href="#cid_facedictrec" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> CID_FaceDictRec_
{
<a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a> private_dict;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> len_buildchar;
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> forcebold_threshold;
<a href="ft2-basic_types.html#ft_pos">FT_Pos</a> stroke_width;
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> expansion_factor; /* this is a duplicate of */
/* `private_dict->expansion_factor' */
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> paint_type;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> font_type;
<a href="ft2-basic_types.html#ft_matrix">FT_Matrix</a> font_matrix;
<a href="ft2-basic_types.html#ft_vector">FT_Vector</a> font_offset;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> num_subrs;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> subrmap_offset;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> sd_bytes;
} <b>CID_FaceDictRec</b>;
</code></pre></div>
<p>A structure used to represent data in a CID top-level dictionary. In most cases, they are part of the font's ‘/FDArray’ array. Within a CID font file, such (internal) subfont dictionaries are enclosed by ‘%ADOBeginFontDict’ and ‘%ADOEndFontDict’ comments.</p>
<p>Note that <code>CID_FaceDictRec</code> misses a field for the ‘/FontName’ keyword, specifying the subfont's name (the top-level font name is given by the ‘/CIDFontName’ keyword). This is an oversight, but it doesn't limit the ‘cid’ font module's functionality because FreeType neither needs this entry nor gives access to CID subfonts.</p>
<hr>
<h2 id="cid_facedict">CID_FaceDict<a class="headerlink" href="#cid_facedict" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> CID_FaceDictRec_* <b>CID_FaceDict</b>;
</code></pre></div>
<p>A handle to a <code><a href="ft2-type1_tables.html#cid_facedictrec">CID_FaceDictRec</a></code> structure.</p>
<hr>
<h2 id="cid_faceinforec">CID_FaceInfoRec<a class="headerlink" href="#cid_faceinforec" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> CID_FaceInfoRec_
{
<a href="ft2-basic_types.html#ft_string">FT_String</a>* cid_font_name;
<a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> cid_version;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> cid_font_type;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* registry;
<a href="ft2-basic_types.html#ft_string">FT_String</a>* ordering;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> supplement;
<a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a> font_info;
<a href="ft2-basic_types.html#ft_bbox">FT_BBox</a> font_bbox;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> uid_base;
<a href="ft2-basic_types.html#ft_int">FT_Int</a> num_xuid;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> xuid[16];
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> cidmap_offset;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> fd_bytes;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> gd_bytes;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> cid_count;
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> num_dicts;
<a href="ft2-type1_tables.html#cid_facedict">CID_FaceDict</a> font_dicts;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> data_offset;
} <b>CID_FaceInfoRec</b>;
</code></pre></div>
<p>A structure used to represent CID Face information.</p>
<hr>
<h2 id="cid_faceinfo">CID_FaceInfo<a class="headerlink" href="#cid_faceinfo" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> CID_FaceInfoRec_* <b>CID_FaceInfo</b>;
</code></pre></div>
<p>A handle to a <code><a href="ft2-type1_tables.html#cid_faceinforec">CID_FaceInfoRec</a></code> structure.</p>
<hr>
<h2 id="ft_has_ps_glyph_names">FT_Has_PS_Glyph_Names<a class="headerlink" href="#ft_has_ps_glyph_names" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_int">FT_Int</a> )
<b>FT_Has_PS_Glyph_Names</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face );
</code></pre></div>
<p>Return true if a given face provides reliable PostScript glyph names. This is similar to using the <code><a href="ft2-base_interface.html#ft_has_glyph_names">FT_HAS_GLYPH_NAMES</a></code> macro, except that certain fonts (mostly TrueType) contain incorrect glyph name tables.</p>
<p>When this function returns true, the caller is sure that the glyph names returned by <code><a href="ft2-base_interface.html#ft_get_glyph_name">FT_Get_Glyph_Name</a></code> are reliable.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>face handle</p>
</td></tr>
</table>
<h4>return</h4>
<p>Boolean. True if glyph names are reliable.</p>
<hr>
<h2 id="ft_get_ps_font_info">FT_Get_PS_Font_Info<a class="headerlink" href="#ft_get_ps_font_info" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Get_PS_Font_Info</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-type1_tables.html#ps_fontinfo">PS_FontInfo</a> afont_info );
</code></pre></div>
<p>Retrieve the <code><a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a></code> structure corresponding to a given PostScript font.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>PostScript face handle.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="afont_info">afont_info</td><td class="desc">
<p>A pointer to a <code><a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a></code> object.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>note</h4>
<p>String pointers within the <code><a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a></code> structure are owned by the face and don't need to be freed by the caller. Missing entries in the font's FontInfo dictionary are represented by <code>NULL</code> pointers.</p>
<p>The following font formats support this feature: ‘Type 1’, ‘Type 42’, ‘CFF’, ‘CID Type 1’. For other font formats this function returns the <code>FT_Err_Invalid_Argument</code> error code.</p>
<h4>example</h4>
<div class="highlight"><pre><span></span><code> PS_FontInfoRec font_info;
error = FT_Get_PS_Font_Info( face, &font_info );
...
</code></pre></div>
<hr>
<h2 id="ft_get_ps_font_private">FT_Get_PS_Font_Private<a class="headerlink" href="#ft_get_ps_font_private" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Get_PS_Font_Private</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-type1_tables.html#ps_private">PS_Private</a> afont_private );
</code></pre></div>
<p>Retrieve the <code><a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a></code> structure corresponding to a given PostScript font.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>PostScript face handle.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="afont_private">afont_private</td><td class="desc">
<p>A pointer to a <code><a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a></code> object.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>note</h4>
<p>The string pointers within the <code><a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a></code> structure are owned by the face and don't need to be freed by the caller.</p>
<p>Only the ‘Type 1’ font format supports this feature. For other font formats this function returns the <code>FT_Err_Invalid_Argument</code> error code.</p>
<h4>example</h4>
<div class="highlight"><pre><span></span><code> PS_PrivateRec font_private;
error = FT_Get_PS_Font_Private( face, &font_private );
...
</code></pre></div>
<hr>
<h2 id="ft_get_ps_font_value">FT_Get_PS_Font_Value<a class="headerlink" href="#ft_get_ps_font_value" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_long">FT_Long</a> )
<b>FT_Get_PS_Font_Value</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-type1_tables.html#ps_dict_keys">PS_Dict_Keys</a> key,
<a href="ft2-basic_types.html#ft_uint">FT_UInt</a> idx,
<span class="keyword">void</span> *value,
<a href="ft2-basic_types.html#ft_long">FT_Long</a> value_len );
</code></pre></div>
<p>Retrieve the value for the supplied key from a PostScript font.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>PostScript face handle.</p>
</td></tr>
<tr><td class="val" id="key">key</td><td class="desc">
<p>An enumeration value representing the dictionary key to retrieve.</p>
</td></tr>
<tr><td class="val" id="idx">idx</td><td class="desc">
<p>For array values, this specifies the index to be returned.</p>
</td></tr>
<tr><td class="val" id="value">value</td><td class="desc">
<p>A pointer to memory into which to write the value.</p>
</td></tr>
<tr><td class="val" id="valen_len">valen_len</td><td class="desc">
<p>The size, in bytes, of the memory supplied for the value.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="value">value</td><td class="desc">
<p>The value matching the above key, if it exists.</p>
</td></tr>
</table>
<h4>return</h4>
<p>The amount of memory (in bytes) required to hold the requested value (if it exists, -1 otherwise).</p>
<h4>note</h4>
<p>The values returned are not pointers into the internal structures of the face, but are ‘fresh’ copies, so that the memory containing them belongs to the calling application. This also enforces the ‘read-only’ nature of these values, i.e., this function cannot be used to manipulate the face.</p>
<p><code>value</code> is a void pointer because the values returned can be of various types.</p>
<p>If either <code>value</code> is <code>NULL</code> or <code>value_len</code> is too small, just the required memory size for the requested entry is returned.</p>
<p>The <code>idx</code> parameter is used, not only to retrieve elements of, for example, the FontMatrix or FontBBox, but also to retrieve name keys from the CharStrings dictionary, and the charstrings themselves. It is ignored for atomic values.</p>
<p><code>PS_DICT_BLUE_SCALE</code> returns a value that is scaled up by 1000. To get the value as in the font stream, you need to divide by 65536000.0 (to remove the FT_Fixed scale, and the x1000 scale).</p>
<p>IMPORTANT: Only key/value pairs read by the FreeType interpreter can be retrieved. So, for example, PostScript procedures such as NP, ND, and RD are not available. Arbitrary keys are, obviously, not be available either.</p>
<p>If the font's format is not PostScript-based, this function returns the <code>FT_Err_Invalid_Argument</code> error code.</p>
<h4>since</h4>
<p>2.4.8</p>
<hr>
<h2 id="t1_blend_flags">T1_Blend_Flags<a class="headerlink" href="#t1_blend_flags" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> T1_Blend_Flags_
{
/* required fields in a FontInfo blend dictionary */
<a href="ft2-type1_tables.html#t1_blend_underline_position">T1_BLEND_UNDERLINE_POSITION</a> = 0,
<a href="ft2-type1_tables.html#t1_blend_underline_thickness">T1_BLEND_UNDERLINE_THICKNESS</a>,
<a href="ft2-type1_tables.html#t1_blend_italic_angle">T1_BLEND_ITALIC_ANGLE</a>,
/* required fields in a Private blend dictionary */
<a href="ft2-type1_tables.html#t1_blend_blue_values">T1_BLEND_BLUE_VALUES</a>,
<a href="ft2-type1_tables.html#t1_blend_other_blues">T1_BLEND_OTHER_BLUES</a>,
<a href="ft2-type1_tables.html#t1_blend_standard_width">T1_BLEND_STANDARD_WIDTH</a>,
<a href="ft2-type1_tables.html#t1_blend_standard_height">T1_BLEND_STANDARD_HEIGHT</a>,
<a href="ft2-type1_tables.html#t1_blend_stem_snap_widths">T1_BLEND_STEM_SNAP_WIDTHS</a>,
<a href="ft2-type1_tables.html#t1_blend_stem_snap_heights">T1_BLEND_STEM_SNAP_HEIGHTS</a>,
<a href="ft2-type1_tables.html#t1_blend_blue_scale">T1_BLEND_BLUE_SCALE</a>,
<a href="ft2-type1_tables.html#t1_blend_blue_shift">T1_BLEND_BLUE_SHIFT</a>,
<a href="ft2-type1_tables.html#t1_blend_family_blues">T1_BLEND_FAMILY_BLUES</a>,
<a href="ft2-type1_tables.html#t1_blend_family_other_blues">T1_BLEND_FAMILY_OTHER_BLUES</a>,
<a href="ft2-type1_tables.html#t1_blend_force_bold">T1_BLEND_FORCE_BOLD</a>,
T1_BLEND_MAX /* do not remove */
} <b>T1_Blend_Flags</b>;
/* these constants are deprecated; use the corresponding */
/* `<b>T1_Blend_Flags</b>` values instead */
#<span class="keyword">define</span> t1_blend_underline_position <a href="ft2-type1_tables.html#t1_blend_underline_position">T1_BLEND_UNDERLINE_POSITION</a>
#<span class="keyword">define</span> t1_blend_underline_thickness <a href="ft2-type1_tables.html#t1_blend_underline_thickness">T1_BLEND_UNDERLINE_THICKNESS</a>
#<span class="keyword">define</span> t1_blend_italic_angle <a href="ft2-type1_tables.html#t1_blend_italic_angle">T1_BLEND_ITALIC_ANGLE</a>
#<span class="keyword">define</span> t1_blend_blue_values <a href="ft2-type1_tables.html#t1_blend_blue_values">T1_BLEND_BLUE_VALUES</a>
#<span class="keyword">define</span> t1_blend_other_blues <a href="ft2-type1_tables.html#t1_blend_other_blues">T1_BLEND_OTHER_BLUES</a>
#<span class="keyword">define</span> t1_blend_standard_widths <a href="ft2-type1_tables.html#t1_blend_standard_width">T1_BLEND_STANDARD_WIDTH</a>
#<span class="keyword">define</span> t1_blend_standard_height <a href="ft2-type1_tables.html#t1_blend_standard_height">T1_BLEND_STANDARD_HEIGHT</a>
#<span class="keyword">define</span> t1_blend_stem_snap_widths <a href="ft2-type1_tables.html#t1_blend_stem_snap_widths">T1_BLEND_STEM_SNAP_WIDTHS</a>
#<span class="keyword">define</span> t1_blend_stem_snap_heights <a href="ft2-type1_tables.html#t1_blend_stem_snap_heights">T1_BLEND_STEM_SNAP_HEIGHTS</a>
#<span class="keyword">define</span> t1_blend_blue_scale <a href="ft2-type1_tables.html#t1_blend_blue_scale">T1_BLEND_BLUE_SCALE</a>
#<span class="keyword">define</span> t1_blend_blue_shift <a href="ft2-type1_tables.html#t1_blend_blue_shift">T1_BLEND_BLUE_SHIFT</a>
#<span class="keyword">define</span> t1_blend_family_blues <a href="ft2-type1_tables.html#t1_blend_family_blues">T1_BLEND_FAMILY_BLUES</a>
#<span class="keyword">define</span> t1_blend_family_other_blues <a href="ft2-type1_tables.html#t1_blend_family_other_blues">T1_BLEND_FAMILY_OTHER_BLUES</a>
#<span class="keyword">define</span> t1_blend_force_bold <a href="ft2-type1_tables.html#t1_blend_force_bold">T1_BLEND_FORCE_BOLD</a>
#<span class="keyword">define</span> t1_blend_max T1_BLEND_MAX
</code></pre></div>
<p>A set of flags used to indicate which fields are present in a given blend dictionary (font info or private). Used to support Multiple Masters fonts.</p>
<h4>values</h4>
<table class="fields long">
<tr><td class="val" id="t1_blend_underline_position">T1_BLEND_UNDERLINE_POSITION</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_underline_thickness">T1_BLEND_UNDERLINE_THICKNESS</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_italic_angle">T1_BLEND_ITALIC_ANGLE</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_blue_values">T1_BLEND_BLUE_VALUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_other_blues">T1_BLEND_OTHER_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_standard_width">T1_BLEND_STANDARD_WIDTH</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_standard_height">T1_BLEND_STANDARD_HEIGHT</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_stem_snap_widths">T1_BLEND_STEM_SNAP_WIDTHS</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_stem_snap_heights">T1_BLEND_STEM_SNAP_HEIGHTS</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_blue_scale">T1_BLEND_BLUE_SCALE</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_blue_shift">T1_BLEND_BLUE_SHIFT</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_family_blues">T1_BLEND_FAMILY_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_family_other_blues">T1_BLEND_FAMILY_OTHER_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_blend_force_bold">T1_BLEND_FORCE_BOLD</td><td class="desc">
</td></tr>
</table>
<hr>
<h2 id="t1_encodingtype">T1_EncodingType<a class="headerlink" href="#t1_encodingtype" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> T1_EncodingType_
{
<a href="ft2-type1_tables.html#t1_encoding_type_none">T1_ENCODING_TYPE_NONE</a> = 0,
<a href="ft2-type1_tables.html#t1_encoding_type_array">T1_ENCODING_TYPE_ARRAY</a>,
<a href="ft2-type1_tables.html#t1_encoding_type_standard">T1_ENCODING_TYPE_STANDARD</a>,
<a href="ft2-type1_tables.html#t1_encoding_type_isolatin1">T1_ENCODING_TYPE_ISOLATIN1</a>,
<a href="ft2-type1_tables.html#t1_encoding_type_expert">T1_ENCODING_TYPE_EXPERT</a>
} <b>T1_EncodingType</b>;
</code></pre></div>
<p>An enumeration describing the ‘Encoding’ entry in a Type 1 dictionary.</p>
<h4>values</h4>
<table class="fields long">
<tr><td class="val" id="t1_encoding_type_none">T1_ENCODING_TYPE_NONE</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_encoding_type_array">T1_ENCODING_TYPE_ARRAY</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_encoding_type_standard">T1_ENCODING_TYPE_STANDARD</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_encoding_type_isolatin1">T1_ENCODING_TYPE_ISOLATIN1</td><td class="desc">
</td></tr>
<tr><td class="val" id="t1_encoding_type_expert">T1_ENCODING_TYPE_EXPERT</td><td class="desc">
</td></tr>
</table>
<h4>since</h4>
<p>2.4.8</p>
<hr>
<h2 id="ps_dict_keys">PS_Dict_Keys<a class="headerlink" href="#ps_dict_keys" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">enum</span> PS_Dict_Keys_
{
/* conventionally in the font dictionary */
<a href="ft2-type1_tables.html#ps_dict_font_type">PS_DICT_FONT_TYPE</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_font_matrix">PS_DICT_FONT_MATRIX</a>, /* <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> */
<a href="ft2-type1_tables.html#ps_dict_font_bbox">PS_DICT_FONT_BBOX</a>, /* <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> */
<a href="ft2-type1_tables.html#ps_dict_paint_type">PS_DICT_PAINT_TYPE</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_font_name">PS_DICT_FONT_NAME</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_unique_id">PS_DICT_UNIQUE_ID</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_num_char_strings">PS_DICT_NUM_CHAR_STRINGS</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_char_string_key">PS_DICT_CHAR_STRING_KEY</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_char_string">PS_DICT_CHAR_STRING</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_encoding_type">PS_DICT_ENCODING_TYPE</a>, /* <a href="ft2-type1_tables.html#t1_encodingtype">T1_EncodingType</a> */
<a href="ft2-type1_tables.html#ps_dict_encoding_entry">PS_DICT_ENCODING_ENTRY</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
/* conventionally in the font Private dictionary */
<a href="ft2-type1_tables.html#ps_dict_num_subrs">PS_DICT_NUM_SUBRS</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_subr">PS_DICT_SUBR</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_std_hw">PS_DICT_STD_HW</a>, /* <a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> */
<a href="ft2-type1_tables.html#ps_dict_std_vw">PS_DICT_STD_VW</a>, /* <a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> */
<a href="ft2-type1_tables.html#ps_dict_num_blue_values">PS_DICT_NUM_BLUE_VALUES</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_blue_value">PS_DICT_BLUE_VALUE</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_blue_fuzz">PS_DICT_BLUE_FUZZ</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_num_other_blues">PS_DICT_NUM_OTHER_BLUES</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_other_blue">PS_DICT_OTHER_BLUE</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_num_family_blues">PS_DICT_NUM_FAMILY_BLUES</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_family_blue">PS_DICT_FAMILY_BLUE</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_num_family_other_blues">PS_DICT_NUM_FAMILY_OTHER_BLUES</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_family_other_blue">PS_DICT_FAMILY_OTHER_BLUE</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_blue_scale">PS_DICT_BLUE_SCALE</a>, /* <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> */
<a href="ft2-type1_tables.html#ps_dict_blue_shift">PS_DICT_BLUE_SHIFT</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_num_stem_snap_h">PS_DICT_NUM_STEM_SNAP_H</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_stem_snap_h">PS_DICT_STEM_SNAP_H</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_num_stem_snap_v">PS_DICT_NUM_STEM_SNAP_V</a>, /* <a href="ft2-basic_types.html#ft_byte">FT_Byte</a> */
<a href="ft2-type1_tables.html#ps_dict_stem_snap_v">PS_DICT_STEM_SNAP_V</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_force_bold">PS_DICT_FORCE_BOLD</a>, /* <a href="ft2-basic_types.html#ft_bool">FT_Bool</a> */
<a href="ft2-type1_tables.html#ps_dict_rnd_stem_up">PS_DICT_RND_STEM_UP</a>, /* <a href="ft2-basic_types.html#ft_bool">FT_Bool</a> */
<a href="ft2-type1_tables.html#ps_dict_min_feature">PS_DICT_MIN_FEATURE</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_len_iv">PS_DICT_LEN_IV</a>, /* <a href="ft2-basic_types.html#ft_int">FT_Int</a> */
<a href="ft2-type1_tables.html#ps_dict_password">PS_DICT_PASSWORD</a>, /* <a href="ft2-basic_types.html#ft_long">FT_Long</a> */
<a href="ft2-type1_tables.html#ps_dict_language_group">PS_DICT_LANGUAGE_GROUP</a>, /* <a href="ft2-basic_types.html#ft_long">FT_Long</a> */
/* conventionally in the font FontInfo dictionary */
<a href="ft2-type1_tables.html#ps_dict_version">PS_DICT_VERSION</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_notice">PS_DICT_NOTICE</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_full_name">PS_DICT_FULL_NAME</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_family_name">PS_DICT_FAMILY_NAME</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_weight">PS_DICT_WEIGHT</a>, /* <a href="ft2-basic_types.html#ft_string">FT_String</a>* */
<a href="ft2-type1_tables.html#ps_dict_is_fixed_pitch">PS_DICT_IS_FIXED_PITCH</a>, /* <a href="ft2-basic_types.html#ft_bool">FT_Bool</a> */
<a href="ft2-type1_tables.html#ps_dict_underline_position">PS_DICT_UNDERLINE_POSITION</a>, /* <a href="ft2-basic_types.html#ft_short">FT_Short</a> */
<a href="ft2-type1_tables.html#ps_dict_underline_thickness">PS_DICT_UNDERLINE_THICKNESS</a>, /* <a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> */
<a href="ft2-type1_tables.html#ps_dict_fs_type">PS_DICT_FS_TYPE</a>, /* <a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> */
<a href="ft2-type1_tables.html#ps_dict_italic_angle">PS_DICT_ITALIC_ANGLE</a>, /* <a href="ft2-basic_types.html#ft_long">FT_Long</a> */
PS_DICT_MAX = <a href="ft2-type1_tables.html#ps_dict_italic_angle">PS_DICT_ITALIC_ANGLE</a>
} <b>PS_Dict_Keys</b>;
</code></pre></div>
<p>An enumeration used in calls to <code><a href="ft2-type1_tables.html#ft_get_ps_font_value">FT_Get_PS_Font_Value</a></code> to identify the Type 1 dictionary entry to retrieve.</p>
<h4>values</h4>
<table class="fields long">
<tr><td class="val" id="ps_dict_font_type">PS_DICT_FONT_TYPE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_font_matrix">PS_DICT_FONT_MATRIX</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_font_bbox">PS_DICT_FONT_BBOX</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_paint_type">PS_DICT_PAINT_TYPE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_font_name">PS_DICT_FONT_NAME</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_unique_id">PS_DICT_UNIQUE_ID</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_char_strings">PS_DICT_NUM_CHAR_STRINGS</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_char_string_key">PS_DICT_CHAR_STRING_KEY</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_char_string">PS_DICT_CHAR_STRING</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_encoding_type">PS_DICT_ENCODING_TYPE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_encoding_entry">PS_DICT_ENCODING_ENTRY</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_subrs">PS_DICT_NUM_SUBRS</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_subr">PS_DICT_SUBR</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_std_hw">PS_DICT_STD_HW</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_std_vw">PS_DICT_STD_VW</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_blue_values">PS_DICT_NUM_BLUE_VALUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_blue_value">PS_DICT_BLUE_VALUE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_blue_fuzz">PS_DICT_BLUE_FUZZ</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_other_blues">PS_DICT_NUM_OTHER_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_other_blue">PS_DICT_OTHER_BLUE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_family_blues">PS_DICT_NUM_FAMILY_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_family_blue">PS_DICT_FAMILY_BLUE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_family_other_blues">PS_DICT_NUM_FAMILY_OTHER_BLUES</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_family_other_blue">PS_DICT_FAMILY_OTHER_BLUE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_blue_scale">PS_DICT_BLUE_SCALE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_blue_shift">PS_DICT_BLUE_SHIFT</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_stem_snap_h">PS_DICT_NUM_STEM_SNAP_H</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_stem_snap_h">PS_DICT_STEM_SNAP_H</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_num_stem_snap_v">PS_DICT_NUM_STEM_SNAP_V</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_stem_snap_v">PS_DICT_STEM_SNAP_V</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_force_bold">PS_DICT_FORCE_BOLD</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_rnd_stem_up">PS_DICT_RND_STEM_UP</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_min_feature">PS_DICT_MIN_FEATURE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_len_iv">PS_DICT_LEN_IV</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_password">PS_DICT_PASSWORD</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_language_group">PS_DICT_LANGUAGE_GROUP</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_version">PS_DICT_VERSION</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_notice">PS_DICT_NOTICE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_full_name">PS_DICT_FULL_NAME</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_family_name">PS_DICT_FAMILY_NAME</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_weight">PS_DICT_WEIGHT</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_is_fixed_pitch">PS_DICT_IS_FIXED_PITCH</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_underline_position">PS_DICT_UNDERLINE_POSITION</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_underline_thickness">PS_DICT_UNDERLINE_THICKNESS</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_fs_type">PS_DICT_FS_TYPE</td><td class="desc">
</td></tr>
<tr><td class="val" id="ps_dict_italic_angle">PS_DICT_ITALIC_ANGLE</td><td class="desc">
</td></tr>
</table>
<h4>since</h4>
<p>2.4.8</p>
<hr>
<h2 id="t1_fontinfo">T1_FontInfo<a class="headerlink" href="#t1_fontinfo" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a> <b>T1_FontInfo</b>;
</code></pre></div>
<p>This type is equivalent to <code><a href="ft2-type1_tables.html#ps_fontinforec">PS_FontInfoRec</a></code>. It is deprecated but kept to maintain source compatibility between various versions of FreeType.</p>
<hr>
<h2 id="t1_private">T1_Private<a class="headerlink" href="#t1_private" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a> <b>T1_Private</b>;
</code></pre></div>
<p>This type is equivalent to <code><a href="ft2-type1_tables.html#ps_privaterec">PS_PrivateRec</a></code>. It is deprecated but kept to maintain source compatibility between various versions of FreeType.</p>
<hr>
<h2 id="cid_fontdict">CID_FontDict<a class="headerlink" href="#cid_fontdict" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-type1_tables.html#cid_facedictrec">CID_FaceDictRec</a> <b>CID_FontDict</b>;
</code></pre></div>
<p>This type is equivalent to <code><a href="ft2-type1_tables.html#cid_facedictrec">CID_FaceDictRec</a></code>. It is deprecated but kept to maintain source compatibility between various versions of FreeType.</p>
<hr>
<h2 id="cid_info">CID_Info<a class="headerlink" href="#cid_info" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPE1_TABLES_H (freetype/t1tables.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <a href="ft2-type1_tables.html#cid_faceinforec">CID_FaceInfoRec</a> <b>CID_Info</b>;
</code></pre></div>
<p>This type is equivalent to <code><a href="ft2-type1_tables.html#cid_faceinforec">CID_FaceInfoRec</a></code>. It is deprecated but kept to maintain source compatibility between various versions of FreeType.</p>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#general-remarks">General Remarks</a> » User allocation</p>
<hr />
<h1 id="user-allocation">User allocation<a class="headerlink" href="#user-allocation" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>FreeType assumes that structures allocated by the user and passed as arguments are zeroed out except for the actual data. In other words, it is recommended to use <code>calloc</code> (or variants of it) instead of <code>malloc</code> for allocation.</p>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#core-api">Core API</a> » FreeType Version</p>
<hr />
<h1 id="freetype-version">FreeType Version<a class="headerlink" href="#freetype-version" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>Note that those functions and macros are of limited use because even a new release of FreeType with only documentation changes increases the version number.</p>
<h2 id="ft_library_version">FT_Library_Version<a class="headerlink" href="#ft_library_version" title="Permanent link">¶</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <span class="keyword">void</span> )
<b>FT_Library_Version</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library,
<a href="ft2-basic_types.html#ft_int">FT_Int</a> *amajor,
<a href="ft2-basic_types.html#ft_int">FT_Int</a> *aminor,
<a href="ft2-basic_types.html#ft_int">FT_Int</a> *apatch );
</code></pre></div>
<p>Return the version of the FreeType library being used. This is useful when dynamically linking to the library, since one cannot use the macros <code><a href="ft2-version.html#freetype_xxx">FREETYPE_MAJOR</a></code>, <code><a href="ft2-version.html#freetype_xxx">FREETYPE_MINOR</a></code>, and <code><a href="ft2-version.html#freetype_xxx">FREETYPE_PATCH</a></code>.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="library">library</td><td class="desc">
<p>A source library handle.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="amajor">amajor</td><td class="desc">
<p>The major version number.</p>
</td></tr>
<tr><td class="val" id="aminor">aminor</td><td class="desc">
<p>The minor version number.</p>
</td></tr>
<tr><td class="val" id="apatch">apatch</td><td class="desc">
<p>The patch version number.</p>
</td></tr>
</table>
<h4>note</h4>
<p>The reason why this function takes a <code>library</code> argument is because certain programs implement library initialization in a custom way that doesn't use <code><a href="ft2-base_interface.html#ft_init_freetype">FT_Init_FreeType</a></code>.</p>
<p>In such cases, the library version might not be available before the library object has been created.</p>
<hr>
<h2 id="ft_face_checktruetypepatents">FT_Face_CheckTrueTypePatents<a class="headerlink" href="#ft_face_checktruetypepatents" title="Permanent link">¶</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_bool">FT_Bool</a> )
<b>FT_Face_CheckTrueTypePatents</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face );
</code></pre></div>
<p>Deprecated, does nothing.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A face handle.</p>
</td></tr>
</table>
<h4>return</h4>
<p>Always returns false.</p>
<h4>note</h4>
<p>Since May 2010, TrueType hinting is no longer patented.</p>
<h4>since</h4>
<p>2.3.5</p>
<hr>
<h2 id="ft_face_setunpatentedhinting">FT_Face_SetUnpatentedHinting<a class="headerlink" href="#ft_face_setunpatentedhinting" title="Permanent link">¶</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_bool">FT_Bool</a> )
<b>FT_Face_SetUnpatentedHinting</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-basic_types.html#ft_bool">FT_Bool</a> value );
</code></pre></div>
<p>Deprecated, does nothing.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A face handle.</p>
</td></tr>
<tr><td class="val" id="value">value</td><td class="desc">
<p>New boolean setting.</p>
</td></tr>
</table>
<h4>return</h4>
<p>Always returns false.</p>
<h4>note</h4>
<p>Since May 2010, TrueType hinting is no longer patented.</p>
<h4>since</h4>
<p>2.3.5</p>
<hr>
<h2 id="freetype_xxx">FREETYPE_XXX<a class="headerlink" href="#freetype_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-version.html#freetype_major">FREETYPE_MAJOR</a> 2
#<span class="keyword">define</span> <a href="ft2-version.html#freetype_minor">FREETYPE_MINOR</a> 12
#<span class="keyword">define</span> <a href="ft2-version.html#freetype_patch">FREETYPE_PATCH</a> 0
</code></pre></div>
<p>These three macros identify the FreeType source code version. Use <code><a href="ft2-version.html#ft_library_version">FT_Library_Version</a></code> to access them at runtime.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="freetype_major">FREETYPE_MAJOR</td><td class="desc">
<p>The major version number.</p>
</td></tr>
<tr><td class="val" id="freetype_minor">FREETYPE_MINOR</td><td class="desc">
<p>The minor version number.</p>
</td></tr>
<tr><td class="val" id="freetype_patch">FREETYPE_PATCH</td><td class="desc">
<p>The patch level.</p>
</td></tr>
</table>
<h4>note</h4>
<p>The version number of FreeType if built as a dynamic link library with the ‘libtool’ package is <em>not</em> controlled by these three macros.</p>
<hr>
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<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#format-specific-api">Format-Specific API</a> » Window FNT Files</p>
<hr />
<h1 id="window-fnt-files">Window FNT Files<a class="headerlink" href="#window-fnt-files" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
<p>This section contains the declaration of Windows FNT-specific functions.</p>
<h2 id="ft_winfnt_id_xxx">FT_WinFNT_ID_XXX<a class="headerlink" href="#ft_winfnt_id_xxx" title="Permanent link">¶</a></h2>
<p>Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1252">FT_WinFNT_ID_CP1252</a> 0
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_default">FT_WinFNT_ID_DEFAULT</a> 1
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_symbol">FT_WinFNT_ID_SYMBOL</a> 2
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_mac">FT_WinFNT_ID_MAC</a> 77
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp932">FT_WinFNT_ID_CP932</a> 128
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp949">FT_WinFNT_ID_CP949</a> 129
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1361">FT_WinFNT_ID_CP1361</a> 130
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp936">FT_WinFNT_ID_CP936</a> 134
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp950">FT_WinFNT_ID_CP950</a> 136
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1253">FT_WinFNT_ID_CP1253</a> 161
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1254">FT_WinFNT_ID_CP1254</a> 162
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1258">FT_WinFNT_ID_CP1258</a> 163
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1255">FT_WinFNT_ID_CP1255</a> 177
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1256">FT_WinFNT_ID_CP1256</a> 178
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1257">FT_WinFNT_ID_CP1257</a> 186
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1251">FT_WinFNT_ID_CP1251</a> 204
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp874">FT_WinFNT_ID_CP874</a> 222
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_cp1250">FT_WinFNT_ID_CP1250</a> 238
#<span class="keyword">define</span> <a href="ft2-winfnt_fonts.html#ft_winfnt_id_oem">FT_WinFNT_ID_OEM</a> 255
</code></pre></div>
<p>A list of valid values for the <code>charset</code> byte in <code><a href="ft2-winfnt_fonts.html#ft_winfnt_headerrec">FT_WinFNT_HeaderRec</a></code>. Exact mapping tables for the various ‘cpXXXX’ encodings (except for ‘cp1361’) can be found at ‘<a href="ftp://ftp.unicode.org/Public/">ftp://ftp.unicode.org/Public/</a>’ in the <code>MAPPINGS/VENDORS/MICSFT/WINDOWS</code> subdirectory. ‘cp1361’ is roughly a superset of <code>MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT</code>.</p>
<h4>values</h4>
<table class="fields">
<tr><td class="val" id="ft_winfnt_id_default">FT_WinFNT_ID_DEFAULT</td><td class="desc">
<p>This is used for font enumeration and font creation as a ‘don't care’ value. Valid font files don't contain this value. When querying for information about the character set of the font that is currently selected into a specified device context, this return value (of the related Windows API) simply denotes failure.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_symbol">FT_WinFNT_ID_SYMBOL</td><td class="desc">
<p>There is no known mapping table available.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_mac">FT_WinFNT_ID_MAC</td><td class="desc">
<p>Mac Roman encoding.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_oem">FT_WinFNT_ID_OEM</td><td class="desc">
<p>From Michael Poettgen <michael@poettgen.de>:</p>
<p>The ‘Windows Font Mapping’ article says that <code>FT_WinFNT_ID_OEM</code> is used for the charset of vector fonts, like <code>modern.fon</code>, <code>roman.fon</code>, and <code>script.fon</code> on Windows.</p>
<p>The ‘CreateFont’ documentation says: The <code>FT_WinFNT_ID_OEM</code> value specifies a character set that is operating-system dependent.</p>
<p>The ‘IFIMETRICS’ documentation from the ‘Windows Driver Development Kit’ says: This font supports an OEM-specific character set. The OEM character set is system dependent.</p>
<p>In general OEM, as opposed to ANSI (i.e., ‘cp1252’), denotes the second default codepage that most international versions of Windows have. It is one of the OEM codepages from</p>
<p><a href="https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers">https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers</a> ,</p>
<p>and is used for the ‘DOS boxes’, to support legacy applications. A German Windows version for example usually uses ANSI codepage 1252 and OEM codepage 850.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp874">FT_WinFNT_ID_CP874</td><td class="desc">
<p>A superset of Thai TIS 620 and ISO 8859-11.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp932">FT_WinFNT_ID_CP932</td><td class="desc">
<p>A superset of Japanese Shift-JIS (with minor deviations).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp936">FT_WinFNT_ID_CP936</td><td class="desc">
<p>A superset of simplified Chinese GB 2312-1980 (with different ordering and minor deviations).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp949">FT_WinFNT_ID_CP949</td><td class="desc">
<p>A superset of Korean Hangul KS C 5601-1987 (with different ordering and minor deviations).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp950">FT_WinFNT_ID_CP950</td><td class="desc">
<p>A superset of traditional Chinese Big 5 ETen (with different ordering and minor deviations).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1250">FT_WinFNT_ID_CP1250</td><td class="desc">
<p>A superset of East European ISO 8859-2 (with slightly different ordering).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1251">FT_WinFNT_ID_CP1251</td><td class="desc">
<p>A superset of Russian ISO 8859-5 (with different ordering).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1252">FT_WinFNT_ID_CP1252</td><td class="desc">
<p>ANSI encoding. A superset of ISO 8859-1.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1253">FT_WinFNT_ID_CP1253</td><td class="desc">
<p>A superset of Greek ISO 8859-7 (with minor modifications).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1254">FT_WinFNT_ID_CP1254</td><td class="desc">
<p>A superset of Turkish ISO 8859-9.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1255">FT_WinFNT_ID_CP1255</td><td class="desc">
<p>A superset of Hebrew ISO 8859-8 (with some modifications).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1256">FT_WinFNT_ID_CP1256</td><td class="desc">
<p>A superset of Arabic ISO 8859-6 (with different ordering).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1257">FT_WinFNT_ID_CP1257</td><td class="desc">
<p>A superset of Baltic ISO 8859-13 (with some deviations).</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1258">FT_WinFNT_ID_CP1258</td><td class="desc">
<p>For Vietnamese. This encoding doesn't cover all necessary characters.</p>
</td></tr>
<tr><td class="val" id="ft_winfnt_id_cp1361">FT_WinFNT_ID_CP1361</td><td class="desc">
<p>Korean (Johab).</p>
</td></tr>
</table>
<hr>
<h2 id="ft_winfnt_headerrec">FT_WinFNT_HeaderRec<a class="headerlink" href="#ft_winfnt_headerrec" title="Permanent link">¶</a></h2>
<p>Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_WinFNT_HeaderRec_
{
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> version;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> file_size;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> copyright[60];
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> file_type;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> nominal_point_size;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> vertical_resolution;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> horizontal_resolution;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> ascent;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> internal_leading;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> external_leading;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> italic;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> underline;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> strike_out;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> weight;
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<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> pixel_height;
<a href="ft2-basic_types.html#ft_byte">FT_Byte</a> pitch_and_family;
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<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> device_offset;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> face_name_offset;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> bits_pointer;
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<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> B_space;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> C_space;
<a href="ft2-basic_types.html#ft_ushort">FT_UShort</a> color_table_offset;
<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> reserved1[4];
} <b>FT_WinFNT_HeaderRec</b>;
</code></pre></div>
<p>Windows FNT Header info.</p>
<hr>
<h2 id="ft_winfnt_header">FT_WinFNT_Header<a class="headerlink" href="#ft_winfnt_header" title="Permanent link">¶</a></h2>
<p>Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_WinFNT_HeaderRec_* <b>FT_WinFNT_Header</b>;
</code></pre></div>
<p>A handle to an <code><a href="ft2-winfnt_fonts.html#ft_winfnt_headerrec">FT_WinFNT_HeaderRec</a></code> structure.</p>
<hr>
<h2 id="ft_get_winfnt_header">FT_Get_WinFNT_Header<a class="headerlink" href="#ft_get_winfnt_header" title="Permanent link">¶</a></h2>
<p>Defined in FT_WINFONTS_H (freetype/ftwinfnt.h).</p>
<div class = "codehilite"><pre><code> FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> )
<b>FT_Get_WinFNT_Header</b>( <a href="ft2-base_interface.html#ft_face">FT_Face</a> face,
<a href="ft2-winfnt_fonts.html#ft_winfnt_headerrec">FT_WinFNT_HeaderRec</a> *aheader );
</code></pre></div>
<p>Retrieve a Windows FNT font info header.</p>
<h4>input</h4>
<table class="fields">
<tr><td class="val" id="face">face</td><td class="desc">
<p>A handle to the input face.</p>
</td></tr>
</table>
<h4>output</h4>
<table class="fields">
<tr><td class="val" id="aheader">aheader</td><td class="desc">
<p>The WinFNT header.</p>
</td></tr>
</table>
<h4>return</h4>
<p>FreeType error code. 0 means success.</p>
<h4>note</h4>
<p>This function only works with Windows FNT faces, returning an error otherwise.</p>
<hr>
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LZW Streams
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BZIP2 Streams
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Error Enumerations
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Error Code Values
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TrueTypeGX/AAT Validation
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<article class="md-content__inner md-typeset">
<p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » Table of Contents</p>
<hr />
<h1 id="freetype-2120-api-reference">FreeType-2.12.0 API Reference<a class="headerlink" href="#freetype-2120-api-reference" title="Permanent link">¶</a></h1>
<h1 id="table-of-contents">Table of Contents<a class="headerlink" href="#table-of-contents" title="Permanent link">¶</a></h1>
<h2 id="general-remarks">General Remarks<a class="headerlink" href="#general-remarks" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-preamble.html">Preamble</a></td><td class="desc">
<p>What FreeType is and isn't</p>
</td></tr>
<tr><td class="link"><a href="ft2-header_inclusion.html">FreeType's header inclusion scheme</a></td><td class="desc">
<p>How client applications should include FreeType header files.</p>
</td></tr>
<tr><td class="link"><a href="ft2-user_allocation.html">User allocation</a></td><td class="desc">
<p>How client applications should allocate FreeType data structures.</p>
</td></tr>
</table>
<h2 id="core-api">Core API<a class="headerlink" href="#core-api" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-version.html">FreeType Version</a></td><td class="desc">
<p>Functions and macros related to FreeType versions.</p>
</td></tr>
<tr><td class="link"><a href="ft2-basic_types.html">Basic Data Types</a></td><td class="desc">
<p>The basic data types defined by the library.</p>
</td></tr>
<tr><td class="link"><a href="ft2-base_interface.html">Base Interface</a></td><td class="desc">
<p>The FreeType 2 base font interface.</p>
</td></tr>
<tr><td class="link"><a href="ft2-glyph_variants.html">Unicode Variation Sequences</a></td><td class="desc">
<p>The FreeType 2 interface to Unicode Variation Sequences (UVS), using the SFNT cmap format 14.</p>
</td></tr>
<tr><td class="link"><a href="ft2-color_management.html">Glyph Color Management</a></td><td class="desc">
<p>Retrieving and manipulating OpenType's ‘CPAL’ table data.</p>
</td></tr>
<tr><td class="link"><a href="ft2-layer_management.html">Glyph Layer Management</a></td><td class="desc">
<p>Retrieving and manipulating OpenType's ‘COLR’ table data.</p>
</td></tr>
<tr><td class="link"><a href="ft2-glyph_management.html">Glyph Management</a></td><td class="desc">
<p>Generic interface to manage individual glyph data.</p>
</td></tr>
<tr><td class="link"><a href="ft2-mac_specific.html">Mac Specific Interface</a></td><td class="desc">
<p>Only available on the Macintosh.</p>
</td></tr>
<tr><td class="link"><a href="ft2-sizes_management.html">Size Management</a></td><td class="desc">
<p>Managing multiple sizes per face.</p>
</td></tr>
<tr><td class="link"><a href="ft2-header_file_macros.html">Header File Macros</a></td><td class="desc">
<p>Macro definitions used to <code>#include</code> specific header files.</p>
</td></tr>
</table>
<h2 id="format-specific-api">Format-Specific API<a class="headerlink" href="#format-specific-api" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-multiple_masters.html">Multiple Masters</a></td><td class="desc">
<p>How to manage Multiple Masters fonts.</p>
</td></tr>
<tr><td class="link"><a href="ft2-truetype_tables.html">TrueType Tables</a></td><td class="desc">
<p>TrueType-specific table types and functions.</p>
</td></tr>
<tr><td class="link"><a href="ft2-type1_tables.html">Type 1 Tables</a></td><td class="desc">
<p>Type 1-specific font tables.</p>
</td></tr>
<tr><td class="link"><a href="ft2-sfnt_names.html">SFNT Names</a></td><td class="desc">
<p>Access the names embedded in TrueType and OpenType files.</p>
</td></tr>
<tr><td class="link"><a href="ft2-bdf_fonts.html">BDF and PCF Files</a></td><td class="desc">
<p>BDF and PCF specific API.</p>
</td></tr>
<tr><td class="link"><a href="ft2-cid_fonts.html">CID Fonts</a></td><td class="desc">
<p>CID-keyed font-specific API.</p>
</td></tr>
<tr><td class="link"><a href="ft2-pfr_fonts.html">PFR Fonts</a></td><td class="desc">
<p>PFR/TrueDoc-specific API.</p>
</td></tr>
<tr><td class="link"><a href="ft2-winfnt_fonts.html">Window FNT Files</a></td><td class="desc">
<p>Windows FNT-specific API.</p>
</td></tr>
<tr><td class="link"><a href="ft2-svg_fonts.html">OpenType SVG Fonts</a></td><td class="desc">
<p>OT-SVG API between FreeType and an external SVG rendering library.</p>
</td></tr>
<tr><td class="link"><a href="ft2-font_formats.html">Font Formats</a></td><td class="desc">
<p>Getting the font format.</p>
</td></tr>
<tr><td class="link"><a href="ft2-gasp_table.html">Gasp Table</a></td><td class="desc">
<p>Retrieving TrueType ‘gasp’ table entries.</p>
</td></tr>
</table>
<h2 id="controlling-freetype-modules">Controlling FreeType Modules<a class="headerlink" href="#controlling-freetype-modules" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-auto_hinter.html">The auto-hinter</a></td><td class="desc">
<p>Controlling the auto-hinting module.</p>
</td></tr>
<tr><td class="link"><a href="ft2-cff_driver.html">The CFF driver</a></td><td class="desc">
<p>Controlling the CFF driver module.</p>
</td></tr>
<tr><td class="link"><a href="ft2-t1_cid_driver.html">The Type 1 and CID drivers</a></td><td class="desc">
<p>Controlling the Type 1 and CID driver modules.</p>
</td></tr>
<tr><td class="link"><a href="ft2-tt_driver.html">The TrueType driver</a></td><td class="desc">
<p>Controlling the TrueType driver module.</p>
</td></tr>
<tr><td class="link"><a href="ft2-pcf_driver.html">The PCF driver</a></td><td class="desc">
<p>Controlling the PCF driver module.</p>
</td></tr>
<tr><td class="link"><a href="ft2-ot_svg_driver.html">The SVG driver</a></td><td class="desc">
<p>Controlling the external rendering of OT-SVG glyphs.</p>
</td></tr>
<tr><td class="link"><a href="ft2-properties.html">Driver properties</a></td><td class="desc">
<p>Controlling driver modules.</p>
</td></tr>
<tr><td class="link"><a href="ft2-parameter_tags.html">Parameter Tags</a></td><td class="desc">
<p>Macros for driver property and font loading parameter tags.</p>
</td></tr>
<tr><td class="link"><a href="ft2-lcd_rendering.html">Subpixel Rendering</a></td><td class="desc">
<p>API to control subpixel rendering.</p>
</td></tr>
</table>
<h2 id="cache-sub-system">Cache Sub-System<a class="headerlink" href="#cache-sub-system" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-cache_subsystem.html">Cache Sub-System</a></td><td class="desc">
<p>How to cache face, size, and glyph data with FreeType 2.</p>
</td></tr>
</table>
<h2 id="support-api">Support API<a class="headerlink" href="#support-api" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-computations.html">Computations</a></td><td class="desc">
<p>Crunching fixed numbers and vectors.</p>
</td></tr>
<tr><td class="link"><a href="ft2-list_processing.html">List Processing</a></td><td class="desc">
<p>Simple management of lists.</p>
</td></tr>
<tr><td class="link"><a href="ft2-outline_processing.html">Outline Processing</a></td><td class="desc">
<p>Functions to create, transform, and render vectorial glyph images.</p>
</td></tr>
<tr><td class="link"><a href="ft2-quick_advance.html">Quick retrieval of advance values</a></td><td class="desc">
<p>Retrieve horizontal and vertical advance values without processing glyph outlines, if possible.</p>
</td></tr>
<tr><td class="link"><a href="ft2-bitmap_handling.html">Bitmap Handling</a></td><td class="desc">
<p>Handling FT_Bitmap objects.</p>
</td></tr>
<tr><td class="link"><a href="ft2-raster.html">Scanline Converter</a></td><td class="desc">
<p>How vectorial outlines are converted into bitmaps and pixmaps.</p>
</td></tr>
<tr><td class="link"><a href="ft2-glyph_stroker.html">Glyph Stroker</a></td><td class="desc">
<p>Generating bordered and stroked glyphs.</p>
</td></tr>
<tr><td class="link"><a href="ft2-system_interface.html">System Interface</a></td><td class="desc">
<p>How FreeType manages memory and i/o.</p>
</td></tr>
<tr><td class="link"><a href="ft2-module_management.html">Module Management</a></td><td class="desc">
<p>How to add, upgrade, remove, and control modules from FreeType.</p>
</td></tr>
<tr><td class="link"><a href="ft2-gzip.html">GZIP Streams</a></td><td class="desc">
<p>Using gzip-compressed font files.</p>
</td></tr>
<tr><td class="link"><a href="ft2-lzw.html">LZW Streams</a></td><td class="desc">
<p>Using LZW-compressed font files.</p>
</td></tr>
<tr><td class="link"><a href="ft2-bzip2.html">BZIP2 Streams</a></td><td class="desc">
<p>Using bzip2-compressed font files.</p>
</td></tr>
<tr><td class="link"><a href="ft2-debugging_apis.html">External Debugging APIs</a></td><td class="desc">
<p>Public APIs to control the <code>FT_DEBUG_LOGGING</code> macro.</p>
</td></tr>
</table>
<h2 id="error-codes">Error Codes<a class="headerlink" href="#error-codes" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-error_enumerations.html">Error Enumerations</a></td><td class="desc">
<p>How to handle errors and error strings.</p>
</td></tr>
<tr><td class="link"><a href="ft2-error_code_values.html">Error Code Values</a></td><td class="desc">
<p>All possible error codes returned by FreeType functions.</p>
</td></tr>
</table>
<h2 id="miscellaneous">Miscellaneous<a class="headerlink" href="#miscellaneous" title="Permanent link">¶</a></h2>
<table class="toc">
<tr><td class="link"><a href="ft2-gx_validation.html">TrueTypeGX/AAT Validation</a></td><td class="desc">
<p>An API to validate TrueTypeGX/AAT tables.</p>
</td></tr>
<tr><td class="link"><a href="ft2-incremental.html">Incremental Loading</a></td><td class="desc">
<p>Custom Glyph Loading.</p>
</td></tr>
<tr><td class="link"><a href="ft2-truetype_engine.html">The TrueType Engine</a></td><td class="desc">
<p>TrueType bytecode support.</p>
</td></tr>
<tr><td class="link"><a href="ft2-ot_validation.html">OpenType Validation</a></td><td class="desc">
<p>An API to validate OpenType tables.</p>
</td></tr>
</table>
<h2 id="global-index"><a href="ft2-index.html">Global Index</a><a class="headerlink" href="#global-index" title="Permanent link">¶</a></h2>
<hr />
<div class="timestamp">generated on Thu Mar 31 12:00:59 2022 UTC</div>
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<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
<url>
<loc>None</loc>
<lastmod>2022-03-31</lastmod>
<changefreq>daily</changefreq>
</url>
</urlset>
|
whupdup/frame
|
real/third_party/freetype-2.12.0/docs/reference/sitemap.xml
|
XML
|
gpl-3.0
| 6,984
|
/* Body and page */
.md-grid {
max-width: 90%;
}
p {
text-align: justify;
}
/* code blocks */
pre.colored {
color: blue;
}
pre>code {
font-family: monospace;
background-color: #D6E8FF;
padding: 2ex 0 2ex 1%;
overflow-x:auto;
}
span.keyword {
font-family: monospace;
text-align: left;
white-space: pre;
color: #d73a49;
}
.md-typeset pre>code {
white-space: pre;
}
/* H4 Heading */
h4 {
background-color: #EEEEFF;
font-size: medium;
font-style: oblique;
font-weight: bold;
padding: 0.3em 0 0.3em 1%;
}
/* Fields table */
table.fields {
width: 90%;
margin: 1.5ex 0 1.5ex 10%;
}
table.fields td.val {
font-weight: bold;
text-align: right;
width: 30%;
vertical-align: baseline;
padding: 1em 1em 0 0;
}
table.fields td.desc {
vertical-align: baseline;
padding: 1ex 0 0 1em;
}
table.fields td.desc p:first-child {
margin: 0;
}
table.fields td.desc p {
margin: 1.5ex 0 0 0;
}
/* Define 'long' tables */
table.long {
display: block;
width: 93%;
}
table.long thead,
table.long tbody,
table.long th,
table.long td,
table.long tr {
display: block;
}
/* Hide table headers (but not display: none;
, for accessibility) */
table.long thead tr {
position: absolute;
top: -9999px;
left: -9999px;
}
table.long tr {
border: 0;
}
table.long {
margin: 1.5ex 3% 1.5ex 3%;
}
table.long td.val {
text-align: left;
}
table.long td {
/* Behave like a "row" */
border: none;
border-bottom: 0;
position: relative;
padding-left: 50%;
}
table.long td:before {
/* Now like a table header */
position: absolute;
/* Top/left values mimic padding */
top: 6px;
left: 6px;
width: 45%;
padding-right: 10px;
white-space: nowrap;
}
/* End 'long' table definition */
/* toc table */
table.toc {
width: 95%;
margin: 1.5ex 0 1.5ex 5%;
}
table.toc td.link {
width: 30%;
text-align: right;
vertical-align: baseline;
padding: 1ex 1em 1ex 0;
}
table.toc td.desc {
vertical-align: baseline;
padding: 1ex 0 1ex 1em;
text-align: left;
}
table.toc td.desc p:first-child {
margin: 0;
text-align: left;
}
table.toc td.desc p {
margin: 1.5ex 0 0 0;
text-align: left;
}
div.timestamp {
font-size: small;
}
/* Change table layout for smaller screens. This query will take effect for any screen smaller than
760px and also iPads specifically. */
@media only screen and (max-width: 760px), (min-device-width: 768px) and (max-device-width: 1024px) {
/* Force table to not be like tables anymore */
table, thead, tbody, th, td, tr {
display: block;
}
/* Hide table headers (but not display: none;
, for accessibility) */
thead tr {
position: absolute;
top: -9999px;
left: -9999px;
}
tr {
border: 0;
}
table.fields {
width: 93%;
margin: 1.5ex 3% 1.5ex 3%;
}
table.fields td.val {
text-align: left;
}
td {
/* Behave like a "row" */
border: none;
border-bottom: 0;
position: relative;
padding-left: 50%;
}
td:before {
/* Now like a table header */
position: absolute;
/* Top/left values mimic padding */
top: 6px;
left: 6px;
width: 45%;
padding-right: 10px;
white-space: nowrap;
}
}
|
whupdup/frame
|
real/third_party/freetype-2.12.0/docs/reference/stylesheets/extra.css
|
CSS
|
gpl-3.0
| 3,407
|
How to prepare a new release
----------------------------
. include/freetype/freetype.h: Update `FREETYPE_MAJOR`,
`FREETYPE_MINOR`, and `FREETYPE_PATCH`.
. Update version numbers in all files where necessary (for example, do
a grep for both '2.10.4' and '2104' for release 2.10.4).
. builds/unix/configure.raw: Update `version_info`.
. docs/CHANGES: Document differences to last release.
. README: Update.
. docs/VERSIONS.TXT: Document changed `version_info`.
. Clone the git archive to another directory with
git clone -l -s . ../freetype.test
or something like this and run
make distclean; make devel; make
make distclean; make devel; make multi
make distclean; make devel CC=g++; make CC=g++
make distclean; make devel CC=g++; make multi CC=g++
sh autogen.sh
make distclean; ./configure CC=g++; make
in the cloned repository to test compilation with both gcc and g++.
Note that it is normally not necessary to test standard C
compilation with the `configure`, `meson`, and `cmake` build tools
since this is done by the CI process of 'gitlab.freetype.org' for
every commit.
. Test C++ compilation for 'freetype-demos' too (using `git clone` as
above).
. Run `src/tools/chktrcmp.py` and check that there are no undefined
`trace_XXXX` macros.
. After pushing the new release, tag the git repositories ('freetype',
'freetype-demos') with
git tag VER-<version> -m "" -u <committer>
and push the tags with
git push --tags
. Check with
git clean -ndx
that the git directory is really clean (and remove extraneous files
if necessary).
. Say `make dist` in both the 'freetype' and 'freetype-demos'
repositories to generate the `.tar.gz`, `.tar.xz`, and `.zip` files.
. Create the doc bundles (`freetype-doc-<version>.tar.gz`,
`freetype-doc-<version>.tar.xz`, `ftdoc<version>.zip`). This is
everything in
<freetype-web git repository>/freetype2/docs
except the `reference` subdirectory. Do *not* use option `-l` from
zip!
. Run the following script (with updated `$VERSION`, `$SAVANNAH_USER`,
and `$SOURCEFORGE_USER` variables) to sign and upload the bundles to
both Savannah and SourceForge. The signing code has been taken from
the `gnupload` script (part of the 'automake' bundle).
#!/bin/sh
VERSION=2.12.0
SAVANNAH_USER=wl
SOURCEFORGE_USER=wlemb
GPG_KEY_ID=BE6C3AAC63AD8E3F
#####################################################################
GPG="/usr/bin/gpg --batch --no-tty --local-user $GPG_KEY_ID"
version=`echo $VERSION | sed "s/\\.//g"`
FREETYPE_PACKAGES="freetype-$VERSION.tar.gz \
freetype-$VERSION.tar.xz \
ft$version.zip"
FT2DEMOS_PACKAGES="ft2demos-$VERSION.tar.gz \
ft2demos-$VERSION.tar.xz \
ftdmo$version.zip"
FTDOC_PACKAGES="freetype-doc-$VERSION.tar.gz \
freetype-doc-$VERSION.tar.xz \
ftdoc$version.zip"
PACKAGE_LIST="$FREETYPE_PACKAGES \
$FT2DEMOS_PACKAGES \
$FTDOC_PACKAGES"
set -e
unset passphrase
PATH=/empty echo -n "Enter GPG passphrase: "
stty -echo
read -r passphrase
stty echo
echo
for f in $PACKAGE_LIST; do
if test ! -f $f; then
echo "$0: Cannot find \`$f'" 1>&2
exit 1
else
:
fi
done
for f in $PACKAGE_LIST; do
echo "Signing $f..."
rm -f $f.sig
echo $passphrase | $GPG --passphrase-fd 0 -ba -o $f.sig $f
done
FREETYPE_SIGNATURES=
for i in $FREETYPE_PACKAGES; do
FREETYPE_SIGNATURES="$FREETYPE_SIGNATURES $i.sig"
done
FT2DEMOS_SIGNATURES=
for i in $FT2DEMOS_PACKAGES; do
FT2DEMOS_SIGNATURES="$FT2DEMOS_SIGNATURES $i.sig"
done
FTDOC_SIGNATURES=
for i in $FTDOC_PACKAGES; do
FTDOC_SIGNATURES="$FTDOC_SIGNATURES $i.sig"
done
SIGNATURE_LIST="$FREETYPE_SIGNATURES \
$FT2DEMOS_SIGNATURES \
$FTDOC_SIGNATURES"
scp $PACKAGE_LIST $SIGNATURE_LIST \
$SAVANNAH_USER@dl.sv.nongnu.org:/releases/freetype/
rsync -avP -e ssh $FREETYPE_PACKAGES $FREETYPE_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/
rsync -avP -e ssh $FT2DEMOS_PACKAGES $FT2DEMOS_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-demos/$VERSION/
rsync -avP -e ssh $FTDOC_PACKAGES $FTDOC_SIGNATURES \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype-docs/$VERSION/
# EOF
. Prepare a `README` file for SourceForge and upload it with the
following script (with updated `$VERSION` and `$SOURCEFORGE_USER`
variables).
#!/bin/sh
VERSION=2.10.4
SOURCEFORGE_USER=wlemb
#####################################################################
rsync -avP -e ssh README \
$SOURCEFORGE_USER,freetype@frs.sf.net:/home/frs/project/f/fr/freetype/freetype2/$VERSION/
# EOF
. On SourceForge, tag the just uploaded `ftXXX.zip` and
`freetype-XXX.tar.xz` files as the default files to download for
'Windows' and 'Others', respectively.
. Trigger the automatic generation of the online API reference by
updating the `FT_VERSION` variable in file `.gitlab-ci.yml` of the
'freetype-web' repository.
. Announce new release on 'freetype-announce@nongnu.org' and to
relevant newsgroups. The text should include
- SHA256 checksums of all files,
- instructions how to verify the bundles using the `.sig` file data,
- the PGP public key used to sign the archives.
----------------------------------------------------------------------
Copyright (C) 2003-2022 by
David Turner, Robert Wilhelm, and Werner Lemberg.
This file is part of the FreeType project, and may only be used,
modified, and distributed under the terms of the FreeType project
license, LICENSE.TXT. By continuing to use, modify, or distribute
this file you indicate that you have read the license and understand
and accept it fully.
--- end of release ---
|
whupdup/frame
|
real/third_party/freetype-2.12.0/docs/release
|
none
|
gpl-3.0
| 6,180
|
// Copyright (c) 2019 nyorain
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt
#ifndef INC_DLG_DLG_H_
#define INC_DLG_DLG_H_
#include <stdbool.h>
#include <stddef.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
// Hosted at https://github.com/nyorain/dlg.
// There are examples and documentation.
// Issue reports and contributions appreciated.
// - CONFIG -
// Define this macro to make all dlg macros have no effect at all
// #define DLG_DISABLE
// the log/assertion levels below which logs/assertions are ignored
// defaulted depending on the NDEBUG macro
#ifndef DLG_LOG_LEVEL
#ifdef NDEBUG
#define DLG_LOG_LEVEL dlg_level_warn
#else
#define DLG_LOG_LEVEL dlg_level_trace
#endif
#endif
#ifndef DLG_ASSERT_LEVEL
#ifdef NDEBUG
#define DLG_ASSERT_LEVEL dlg_level_warn
#else
#define DLG_ASSERT_LEVEL dlg_level_trace
#endif
#endif
// the assert level of dlg_assert
#ifndef DLG_DEFAULT_ASSERT
#define DLG_DEFAULT_ASSERT dlg_level_error
#endif
// evaluated to the 'file' member in dlg_origin
#ifndef DLG_FILE
#define DLG_FILE dlg__strip_root_path(__FILE__, DLG_BASE_PATH)
// the base path stripped from __FILE__. If you don't override DLG_FILE set this to
// the project root to make 'main.c' from '/some/bullshit/main.c'
#ifndef DLG_BASE_PATH
#define DLG_BASE_PATH ""
#endif
#endif
// Default tags applied to all logs/assertions (in the defining file).
// Must be in format ```#define DLG_DEFAULT_TAGS "tag1", "tag2"```
// or just nothing (as defaulted here)
#ifndef DLG_DEFAULT_TAGS
#define DLG_DEFAULT_TAGS_TERM NULL
#else
#define DLG_DEFAULT_TAGS_TERM DLG_DEFAULT_TAGS, NULL
#endif
// The function used for formatting. Can have any signature, but must be callable with
// the arguments the log/assertions macros are called with. Must return a const char*
// that will not be freed by dlg, the formatting function must keep track of it.
// The formatting function might use dlg_thread_buffer or a custom owned buffer.
// The returned const char* has to be valid until the dlg log/assertion ends.
// Usually a c function with ... (i.e. using va_list) or a variadic c++ template do
// allow formatting.
#ifndef DLG_FMT_FUNC
#define DLG_FMT_FUNC dlg__printf_format
#endif
// Only overwrite (i.e. predefine) this if you know what you are doing.
// On windows this is used to add the dllimport specified.
// If you are using the static version of dlg (on windows) define
// DLG_STATIC before including dlg.h
#ifndef DLG_API
#if (defined(_WIN32) || defined(__CYGWIN__)) && !defined(DLG_STATIC)
#define DLG_API __declspec(dllimport)
#else
#define DLG_API
#endif
#endif
// - utility -
// two methods needed since cplusplus does not support compound literals
// and c does not support uniform initialization/initializer lists
#ifdef __cplusplus
#include <initializer_list>
#define DLG_CREATE_TAGS(...) std::initializer_list<const char*> \
{DLG_DEFAULT_TAGS_TERM, __VA_ARGS__, NULL}.begin()
#else
#define DLG_CREATE_TAGS(...) (const char* const[]) {DLG_DEFAULT_TAGS_TERM, __VA_ARGS__, NULL}
#endif
#ifdef __GNUC__
#define DLG_PRINTF_ATTRIB(a, b) __attribute__ ((format (printf, a, b)))
#else
#define DLG_PRINTF_ATTRIB(a, b)
#endif
#ifdef __cplusplus
extern "C" {
#endif
// Represents the importance of a log/assertion call.
enum dlg_level {
dlg_level_trace = 0, // temporary used debug, e.g. to check if control reaches function
dlg_level_debug, // general debugging, prints e.g. all major events
dlg_level_info, // general useful information
dlg_level_warn, // warning, something went wrong but might have no (really bad) side effect
dlg_level_error, // something really went wrong; expect serious issues
dlg_level_fatal // critical error; application is likely to crash/exit
};
// Holds various information associated with a log/assertion call.
// Forwarded to the output handler.
struct dlg_origin {
const char* file;
unsigned int line;
const char* func;
enum dlg_level level;
const char** tags; // null-terminated
const char* expr; // assertion expression, otherwise null
};
// Type of the output handler, see dlg_set_handler.
typedef void(*dlg_handler)(const struct dlg_origin* origin, const char* string, void* data);
#ifdef DLG_DISABLE
// Tagged/Untagged logging with variable level
// Tags must always be in the format `("tag1", "tag2")` (including brackets)
#define dlg_log(level, ...)
#define dlg_logt(level, tags, ...)
// Dynamic level assert macros in various versions for additional arguments
#define dlg_assertl(level, expr) // assert without tags/message
#define dlg_assertlt(level, tags, expr) // assert with tags
#define dlg_assertlm(level, expr, ...) // assert with message
#define dlg_assertltm(level, tags, expr, ...) // assert with tags & message
// Sets the handler that is responsible for formatting and outputting log calls.
// This function is not thread safe and the handler is set globally.
// The handler itself must not change dlg tags or call a dlg macro (if it
// does so, the provided string or tags array in 'origin' might get invalid).
// The handler can also be used for various other things such as dealing
// with failed assertions or filtering calls based on the passed tags.
// The default handler is dlg_default_output (see its doc for more info).
// If using c++ make sure the registered handler cannot throw e.g. by
// wrapping everything into a try-catch blog.
inline void dlg_set_handler(dlg_handler handler, void* data) {
(void) handler;
(void) data;
}
// Returns the currently active dlg handler and sets `data` to
// its user data pointer. `data` must not be NULL.
// Useful to create handler chains.
// This function is not threadsafe, i.e. retrieving the handler while
// changing it from another thread is unsafe.
// See `dlg_set_handler`.
inline dlg_handler dlg_get_handler(void** data) {
*data = NULL;
return NULL;
}
// The default output handler.
// Only use this to reset the output handler, prefer to use
// dlg_generic_output (from output.h) which this function simply calls.
// It also flushes the stream used and correctly outputs even from multiple threads.
inline void dlg_default_output(const struct dlg_origin* o, const char* str, void* data) {
(void) o;
(void) str;
(void) data;
}
// Adds the given tag associated with the given function to the thread specific list.
// If func is not NULL the tag will only applied to calls from the same function.
// Remove the tag again calling dlg_remove_tag (with exactly the same pointers!).
// Does not check if the tag is already present.
inline void dlg_add_tag(const char* tag, const char* func) {
(void) tag;
(void) func;
}
// Removes a tag added with dlg_add_tag (has no effect for tags no present).
// The pointers must be exactly the same pointers that were supplied to dlg_add_tag,
// this function will not check using strcmp. When the same tag/func combination
// is added multiple times, this function remove exactly one candidate, it is
// undefined which. Returns whether a tag was found (and removed).
inline bool dlg_remove_tag(const char* tag, const char* func) {
(void) tag;
(void) func;
return true;
}
// Returns the thread-specific buffer and its size for dlg.
// The buffer should only be used by formatting functions.
// The buffer can be reallocated and the size changed, just make sure
// to update both values correctly.
inline char** dlg_thread_buffer(size_t** size) {
(void) size;
return NULL;
}
#else // DLG_DISABLE
#define dlg_log(level, ...) if(level >= DLG_LOG_LEVEL) \
dlg__do_log(level, DLG_CREATE_TAGS(NULL), DLG_FILE, __LINE__, __func__, \
DLG_FMT_FUNC(__VA_ARGS__), NULL)
#define dlg_logt(level, tags, ...) if(level >= DLG_LOG_LEVEL) \
dlg__do_log(level, DLG_CREATE_TAGS tags, DLG_FILE, __LINE__, __func__, \
DLG_FMT_FUNC(__VA_ARGS__), NULL)
#define dlg_assertl(level, expr) if(level >= DLG_ASSERT_LEVEL && !(expr)) \
dlg__do_log(level, DLG_CREATE_TAGS(NULL), DLG_FILE, __LINE__, __func__, NULL, #expr)
#define dlg_assertlt(level, tags, expr) if(level >= DLG_ASSERT_LEVEL && !(expr)) \
dlg__do_log(level, DLG_CREATE_TAGS tags, DLG_FILE, __LINE__, __func__, NULL, #expr)
#define dlg_assertlm(level, expr, ...) if(level >= DLG_ASSERT_LEVEL && !(expr)) \
dlg__do_log(level, DLG_CREATE_TAGS(NULL), DLG_FILE, __LINE__, __func__, \
DLG_FMT_FUNC(__VA_ARGS__), #expr)
#define dlg_assertltm(level, tags, expr, ...) if(level >= DLG_ASSERT_LEVEL && !(expr)) \
dlg__do_log(level, DLG_CREATE_TAGS tags, DLG_FILE, __LINE__, \
__func__, DLG_FMT_FUNC(__VA_ARGS__), #expr)
DLG_API void dlg_set_handler(dlg_handler handler, void* data);
DLG_API dlg_handler dlg_get_handler(void** data);
DLG_API void dlg_default_output(const struct dlg_origin*, const char* string, void*);
DLG_API void dlg_add_tag(const char* tag, const char* func);
DLG_API bool dlg_remove_tag(const char* tag, const char* func);
DLG_API char** dlg_thread_buffer(size_t** size);
// - Private interface: not part of the abi/api but needed in macros -
// Formats the given format string and arguments as printf would, uses the thread buffer.
DLG_API const char* dlg__printf_format(const char* format, ...) DLG_PRINTF_ATTRIB(1, 2);
DLG_API void dlg__do_log(enum dlg_level lvl, const char* const*, const char*, int,
const char*, const char*, const char*);
DLG_API const char* dlg__strip_root_path(const char* file, const char* base);
#endif // DLG_DISABLE
// Untagged leveled logging
#define dlg_trace(...) dlg_log(dlg_level_trace, __VA_ARGS__)
#define dlg_debug(...) dlg_log(dlg_level_debug, __VA_ARGS__)
#define dlg_info(...) dlg_log(dlg_level_info, __VA_ARGS__)
#define dlg_warn(...) dlg_log(dlg_level_warn, __VA_ARGS__)
#define dlg_error(...) dlg_log(dlg_level_error, __VA_ARGS__)
#define dlg_fatal(...) dlg_log(dlg_level_fatal, __VA_ARGS__)
// Tagged leveled logging
#define dlg_tracet(tags, ...) dlg_logt(dlg_level_trace, tags, __VA_ARGS__)
#define dlg_debugt(tags, ...) dlg_logt(dlg_level_debug, tags, __VA_ARGS__)
#define dlg_infot(tags, ...) dlg_logt(dlg_level_info, tags, __VA_ARGS__)
#define dlg_warnt(tags, ...) dlg_logt(dlg_level_warn, tags, __VA_ARGS__)
#define dlg_errort(tags, ...) dlg_logt(dlg_level_error, tags, __VA_ARGS__)
#define dlg_fatalt(tags, ...) dlg_logt(dlg_level_fatal, tags, __VA_ARGS__)
// Assert macros useing DLG_DEFAULT_ASSERT as level
#define dlg_assert(expr) dlg_assertl(DLG_DEFAULT_ASSERT, expr)
#define dlg_assertt(tags, expr) dlg_assertlt(DLG_DEFAULT_ASSERT, tags, expr)
#define dlg_assertm(expr, ...) dlg_assertlm(DLG_DEFAULT_ASSERT, expr, __VA_ARGS__)
#define dlg_asserttm(tags, expr, ...) dlg_assertltm(DLG_DEFAULT_ASSERT, tags, expr, __VA_ARGS__)
#ifdef __cplusplus
}
#endif
#endif // header guard
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/dlg/dlg.h
|
C++
|
gpl-3.0
| 10,834
|
// Copyright (c) 2019 nyorain
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE or copy at http://www.boost.org/LICENSE_1_0.txt
#ifndef INC_DLG_OUTPUT_H_
#define INC_DLG_OUTPUT_H_
#include <dlg/dlg.h>
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif
// Text style
enum dlg_text_style {
dlg_text_style_reset = 0,
dlg_text_style_bold = 1,
dlg_text_style_dim = 2,
dlg_text_style_italic = 3,
dlg_text_style_underline = 4,
dlg_text_style_blink = 5,
dlg_text_style_rblink = 6,
dlg_text_style_reversed = 7,
dlg_text_style_conceal = 8,
dlg_text_style_crossed = 9,
dlg_text_style_none,
};
// Text color
enum dlg_color {
dlg_color_black = 0,
dlg_color_red,
dlg_color_green,
dlg_color_yellow,
dlg_color_blue,
dlg_color_magenta,
dlg_color_cyan,
dlg_color_gray,
dlg_color_reset = 9,
dlg_color_black2 = 60,
dlg_color_red2,
dlg_color_green2,
dlg_color_yellow2,
dlg_color_blue2,
dlg_color_magenta2,
dlg_color_cyan2,
dlg_color_gray2,
dlg_color_none = 69,
};
struct dlg_style {
enum dlg_text_style style;
enum dlg_color fg;
enum dlg_color bg;
};
// Like fprintf but fixes utf-8 output to console on windows.
// On non-windows sytems just uses the corresponding standard library
// functions. On windows, if dlg was compiled with the win_console option,
// will first try to output it in a way that allows the default console
// to display utf-8. If that fails, will fall back to the standard
// library functions.
DLG_API int dlg_fprintf(FILE* stream, const char* format, ...) DLG_PRINTF_ATTRIB(2, 3);
DLG_API int dlg_vfprintf(FILE* stream, const char* format, va_list list);
// Like dlg_printf, but also applies the given style to this output.
// The style will always be applied (using escape sequences), independent of the given stream.
// On windows escape sequences don't work out of the box, see dlg_win_init_ansi().
DLG_API int dlg_styled_fprintf(FILE* stream, struct dlg_style style,
const char* format, ...) DLG_PRINTF_ATTRIB(3, 4);
// Features to output from the generic output handler.
// Some features might have only an effect in the specializations.
enum dlg_output_feature {
dlg_output_tags = 1, // output tags list
dlg_output_time = 2, // output time of log call (hour:minute:second)
dlg_output_style = 4, // whether to use the supplied styles
dlg_output_func = 8, // output function
dlg_output_file_line = 16, // output file:line,
dlg_output_newline = 32, // output a newline at the end
dlg_output_threadsafe = 64, // locks stream before printing
dlg_output_time_msecs = 128 // output micro seconds (ms on windows)
};
// The default level-dependent output styles. The array values represent the styles
// to be used for the associated level (i.e. [0] for trace level).
DLG_API extern const struct dlg_style dlg_default_output_styles[6];
// Generic output function. Used by the default output handler and might be useful
// for custom output handlers (that don't want to manually format the output).
// Will call the given output func with the given data (and format + args to print)
// for everything it has to print in printf format.
// See also the *_stream and *_buf specializations for common usage.
// The given output function must not be NULL.
typedef void(*dlg_generic_output_handler)(void* data, const char* format, ...);
DLG_API void dlg_generic_output(dlg_generic_output_handler output, void* data,
unsigned int features, const struct dlg_origin* origin, const char* string,
const struct dlg_style styles[6]);
// Generic output function, using a format string instead of feature flags.
// Use following conversion characters:
// %h - output the time in H:M:S format
// %m - output the time in milliseconds
// %t - output the full list of tags, comma separated
// %f - output the function name noted in the origin
// %o - output the file:line of the origin
// %s - print the appropriate style escape sequence.
// %r - print the escape sequence to reset the style.
// %c - The content of the log/assert
// %% - print the '%' character
// Only the above specified conversion characters are valid, the rest are
// written as it is.
DLG_API void dlg_generic_outputf(dlg_generic_output_handler output, void* data,
const char* format_string, const struct dlg_origin* origin,
const char* string, const struct dlg_style styles[6]);
// Generic output function. Used by the default output handler and might be useful
// for custom output handlers (that don't want to manually format the output).
// If stream is NULL uses stdout.
// Automatically uses dlg_fprintf to assure correct utf-8 even on windows consoles.
// Locks the stream (i.e. assures threadsafe access) when the associated feature
// is passed (note that stdout/stderr might still mix from multiple threads).
DLG_API void dlg_generic_output_stream(FILE* stream, unsigned int features,
const struct dlg_origin* origin, const char* string,
const struct dlg_style styles[6]);
DLG_API void dlg_generic_outputf_stream(FILE* stream, const char* format_string,
const struct dlg_origin* origin, const char* string,
const struct dlg_style styles[6], bool lock_stream);
// Generic output function (see dlg_generic_output) that uses a buffer instead of
// a stream. buf must at least point to *size bytes. Will set *size to the number
// of bytes written (capped to the given size), if buf == NULL will set *size
// to the needed size. The size parameter must not be NULL.
DLG_API void dlg_generic_output_buf(char* buf, size_t* size, unsigned int features,
const struct dlg_origin* origin, const char* string,
const struct dlg_style styles[6]);
DLG_API void dlg_generic_outputf_buf(char* buf, size_t* size, const char* format_string,
const struct dlg_origin* origin, const char* string,
const struct dlg_style styles[6]);
// Returns if the given stream is a tty. Useful for custom output handlers
// e.g. to determine whether to use color.
// NOTE: Due to windows limitations currently returns false for wsl ttys.
DLG_API bool dlg_is_tty(FILE* stream);
// Returns the null-terminated escape sequence for the given style into buf.
// Undefined behvaiour if any member of style has a value outside its enum range (will
// probably result in a buffer overflow or garbage being printed).
// If all member of style are 'none' will simply nullterminate the first buf char.
DLG_API void dlg_escape_sequence(struct dlg_style style, char buf[12]);
// The reset style escape sequence.
DLG_API extern const char* const dlg_reset_sequence;
// Just returns true without other effect on non-windows systems or if dlg
// was compiled without the win_console option.
// On windows tries to set the console mode to ansi to make escape sequences work.
// This works only on newer windows 10 versions. Returns false on error.
// Only the first call to it will have an effect, following calls just return the result.
// The function is threadsafe. Automatically called by the default output handler.
// This will only be able to set the mode for the stdout and stderr consoles, so
// other streams to consoles will still not work.
DLG_API bool dlg_win_init_ansi(void);
#ifdef __cplusplus
} // extern "C"
#endif
#endif // header guard
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/dlg/output.h
|
C++
|
gpl-3.0
| 7,229
|
/****************************************************************************
*
* ftconfig.h
*
* ANSI-specific configuration file (specification only).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This header file contains a number of macro definitions that are used by
* the rest of the engine. Most of the macros here are automatically
* determined at compile time, and you should not need to change it to port
* FreeType, except to compile the library with a non-ANSI compiler.
*
* Note however that if some specific modifications are needed, we advise
* you to place a modified copy in your build directory.
*
* The build directory is usually `builds/<system>`, and contains
* system-specific files that are always included first when building the
* library.
*
* This ANSI version should stay in `include/config/`.
*
*/
#ifndef FTCONFIG_H_
#define FTCONFIG_H_
#include <ft2build.h>
#include FT_CONFIG_OPTIONS_H
#include FT_CONFIG_STANDARD_LIBRARY_H
#include <freetype/config/integer-types.h>
#include <freetype/config/public-macros.h>
#include <freetype/config/mac-support.h>
#endif /* FTCONFIG_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/ftconfig.h
|
C++
|
gpl-3.0
| 1,614
|
/****************************************************************************
*
* ftheader.h
*
* Build macros of the FreeType 2 library.
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTHEADER_H_
#define FTHEADER_H_
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_BEGIN_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_END_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_BEGIN_HEADER
# ifdef __cplusplus
# define FT_BEGIN_HEADER extern "C" {
# else
# define FT_BEGIN_HEADER /* nothing */
# endif
#endif
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_END_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_BEGIN_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_END_HEADER
# ifdef __cplusplus
# define FT_END_HEADER }
# else
# define FT_END_HEADER /* nothing */
# endif
#endif
/**************************************************************************
*
* Aliases for the FreeType 2 public and configuration files.
*
*/
/**************************************************************************
*
* @section:
* header_file_macros
*
* @title:
* Header File Macros
*
* @abstract:
* Macro definitions used to `#include` specific header files.
*
* @description:
* In addition to the normal scheme of including header files like
*
* ```
* #include <freetype/freetype.h>
* #include <freetype/ftmm.h>
* #include <freetype/ftglyph.h>
* ```
*
* it is possible to used named macros instead. They can be used
* directly in `#include` statements as in
*
* ```
* #include FT_FREETYPE_H
* #include FT_MULTIPLE_MASTERS_H
* #include FT_GLYPH_H
* ```
*
* These macros were introduced to overcome the infamous 8.3~naming rule
* required by DOS (and `FT_MULTIPLE_MASTERS_H` is a lot more meaningful
* than `ftmm.h`).
*
*/
/* configuration files */
/**************************************************************************
*
* @macro:
* FT_CONFIG_CONFIG_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 configuration data.
*
*/
#ifndef FT_CONFIG_CONFIG_H
#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_STANDARD_LIBRARY_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 interface to the standard C library functions.
*
*/
#ifndef FT_CONFIG_STANDARD_LIBRARY_H
#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_OPTIONS_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 project-specific configuration options.
*
*/
#ifndef FT_CONFIG_OPTIONS_H
#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_MODULES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 modules that are statically linked to new library
* instances in @FT_Init_FreeType.
*
*/
#ifndef FT_CONFIG_MODULES_H
#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h>
#endif
/* */
/* public headers */
/**************************************************************************
*
* @macro:
* FT_FREETYPE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* base FreeType~2 API.
*
*/
#define FT_FREETYPE_H <freetype/freetype.h>
/**************************************************************************
*
* @macro:
* FT_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 error codes (and messages).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_ERRORS_H <freetype/fterrors.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 module error offsets (and messages).
*
*/
#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h>
/**************************************************************************
*
* @macro:
* FT_SYSTEM_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 interface to low-level operations (i.e., memory management
* and stream i/o).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_SYSTEM_H <freetype/ftsystem.h>
/**************************************************************************
*
* @macro:
* FT_IMAGE_H
*
* @description:
* A macro used in `#include` statements to name the file containing type
* definitions related to glyph images (i.e., bitmaps, outlines,
* scan-converter parameters).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_IMAGE_H <freetype/ftimage.h>
/**************************************************************************
*
* @macro:
* FT_TYPES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* basic data types defined by FreeType~2.
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_TYPES_H <freetype/fttypes.h>
/**************************************************************************
*
* @macro:
* FT_LIST_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list management API of FreeType~2.
*
* (Most applications will never need to include this file.)
*
*/
#define FT_LIST_H <freetype/ftlist.h>
/**************************************************************************
*
* @macro:
* FT_OUTLINE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* scalable outline management API of FreeType~2.
*
*/
#define FT_OUTLINE_H <freetype/ftoutln.h>
/**************************************************************************
*
* @macro:
* FT_SIZES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API which manages multiple @FT_Size objects per face.
*
*/
#define FT_SIZES_H <freetype/ftsizes.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* module management API of FreeType~2.
*
*/
#define FT_MODULE_H <freetype/ftmodapi.h>
/**************************************************************************
*
* @macro:
* FT_RENDER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* renderer module management API of FreeType~2.
*
*/
#define FT_RENDER_H <freetype/ftrender.h>
/**************************************************************************
*
* @macro:
* FT_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the driver modules.
*
*/
#define FT_DRIVER_H <freetype/ftdriver.h>
/**************************************************************************
*
* @macro:
* FT_AUTOHINTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the auto-hinting module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_AUTOHINTER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_CFF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the CFF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_CFF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the TrueType driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_TRUETYPE_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_PCF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the PCF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_PCF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TYPE1_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the Type~1 format.
*
*/
#define FT_TYPE1_TABLES_H <freetype/t1tables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_IDS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* enumeration values which identify name strings, languages, encodings,
* etc. This file really contains a _large_ set of constant macro
* definitions, taken from the TrueType and OpenType specifications.
*
*/
#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the TrueType (as well as OpenType) format.
*
*/
#define FT_TRUETYPE_TABLES_H <freetype/tttables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TAGS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of TrueType four-byte 'tags' which identify blocks in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_TRUETYPE_TAGS_H <freetype/tttags.h>
/**************************************************************************
*
* @macro:
* FT_BDF_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which accesses BDF-specific strings from a face.
*
*/
#define FT_BDF_H <freetype/ftbdf.h>
/**************************************************************************
*
* @macro:
* FT_CID_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which access CID font information from a face.
*
*/
#define FT_CID_H <freetype/ftcid.h>
/**************************************************************************
*
* @macro:
* FT_GZIP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports gzip-compressed files.
*
*/
#define FT_GZIP_H <freetype/ftgzip.h>
/**************************************************************************
*
* @macro:
* FT_LZW_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports LZW-compressed files.
*
*/
#define FT_LZW_H <freetype/ftlzw.h>
/**************************************************************************
*
* @macro:
* FT_BZIP2_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports bzip2-compressed files.
*
*/
#define FT_BZIP2_H <freetype/ftbzip2.h>
/**************************************************************************
*
* @macro:
* FT_WINFONTS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports Windows FNT files.
*
*/
#define FT_WINFONTS_H <freetype/ftwinfnt.h>
/**************************************************************************
*
* @macro:
* FT_GLYPH_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional glyph management component.
*
*/
#define FT_GLYPH_H <freetype/ftglyph.h>
/**************************************************************************
*
* @macro:
* FT_BITMAP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional bitmap conversion component.
*
*/
#define FT_BITMAP_H <freetype/ftbitmap.h>
/**************************************************************************
*
* @macro:
* FT_BBOX_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional exact bounding box computation routines.
*
*/
#define FT_BBOX_H <freetype/ftbbox.h>
/**************************************************************************
*
* @macro:
* FT_CACHE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional FreeType~2 cache sub-system.
*
*/
#define FT_CACHE_H <freetype/ftcache.h>
/**************************************************************************
*
* @macro:
* FT_MAC_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* Macintosh-specific FreeType~2 API. The latter is used to access fonts
* embedded in resource forks.
*
* This header file must be explicitly included by client applications
* compiled on the Mac (note that the base API still works though).
*
*/
#define FT_MAC_H <freetype/ftmac.h>
/**************************************************************************
*
* @macro:
* FT_MULTIPLE_MASTERS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional multiple-masters management API of FreeType~2.
*
*/
#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h>
/**************************************************************************
*
* @macro:
* FT_SFNT_NAMES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which accesses embedded 'name' strings in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_SFNT_NAMES_H <freetype/ftsnames.h>
/**************************************************************************
*
* @macro:
* FT_OPENTYPE_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates OpenType tables ('BASE',
* 'GDEF', 'GPOS', 'GSUB', 'JSTF').
*
*/
#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h>
/**************************************************************************
*
* @macro:
* FT_GX_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates TrueTypeGX/AAT tables ('feat',
* 'mort', 'morx', 'bsln', 'just', 'kern', 'opbd', 'trak', 'prop').
*
*/
#define FT_GX_VALIDATE_H <freetype/ftgxval.h>
/**************************************************************************
*
* @macro:
* FT_PFR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which accesses PFR-specific data.
*
*/
#define FT_PFR_H <freetype/ftpfr.h>
/**************************************************************************
*
* @macro:
* FT_STROKER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions to stroke outline paths.
*/
#define FT_STROKER_H <freetype/ftstroke.h>
/**************************************************************************
*
* @macro:
* FT_SYNTHESIS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs artificial obliquing and emboldening.
*/
#define FT_SYNTHESIS_H <freetype/ftsynth.h>
/**************************************************************************
*
* @macro:
* FT_FONT_FORMATS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions specific to font formats.
*/
#define FT_FONT_FORMATS_H <freetype/ftfntfmt.h>
/* deprecated */
#define FT_XFREE86_H FT_FONT_FORMATS_H
/**************************************************************************
*
* @macro:
* FT_TRIGONOMETRY_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs trigonometric computations (e.g.,
* cosines and arc tangents).
*/
#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
/**************************************************************************
*
* @macro:
* FT_LCD_FILTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
#define FT_LCD_FILTER_H <freetype/ftlcdfil.h>
/**************************************************************************
*
* @macro:
* FT_INCREMENTAL_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs incremental glyph loading.
*/
#define FT_INCREMENTAL_H <freetype/ftincrem.h>
/**************************************************************************
*
* @macro:
* FT_GASP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns entries from the TrueType GASP table.
*/
#define FT_GASP_H <freetype/ftgasp.h>
/**************************************************************************
*
* @macro:
* FT_ADVANCES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns individual and ranged glyph advances.
*/
#define FT_ADVANCES_H <freetype/ftadvanc.h>
/**************************************************************************
*
* @macro:
* FT_COLOR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'CPAL' table.
*/
#define FT_COLOR_H <freetype/ftcolor.h>
/**************************************************************************
*
* @macro:
* FT_OTSVG_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'SVG~' glyphs.
*/
#define FT_OTSVG_H <freetype/otsvg.h>
/* */
/* These header files don't need to be included by the user. */
#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h>
#define FT_PARAMETER_TAGS_H <freetype/ftparams.h>
/* Deprecated macros. */
#define FT_UNPATENTED_HINTING_H <freetype/ftparams.h>
#define FT_TRUETYPE_UNPATENTED_H <freetype/ftparams.h>
/* `FT_CACHE_H` is the only header file needed for the cache subsystem. */
#define FT_CACHE_IMAGE_H FT_CACHE_H
#define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H
#define FT_CACHE_CHARMAP_H FT_CACHE_H
/* The internals of the cache sub-system are no longer exposed. We */
/* default to `FT_CACHE_H` at the moment just in case, but we know */
/* of no rogue client that uses them. */
/* */
#define FT_CACHE_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MRU_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_CACHE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_GLYPH_H FT_CACHE_H
#define FT_CACHE_INTERNAL_IMAGE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_SBITS_H FT_CACHE_H
/* TODO(david): Move this section below to a different header */
#ifdef FT2_BUILD_LIBRARY
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
/* We disable the warning `conditional expression is constant' here */
/* in order to compile cleanly with the maximum level of warnings. */
/* In particular, the warning complains about stuff like `while(0)' */
/* which is very useful in macro definitions. There is no benefit */
/* in having it enabled. */
#pragma warning( disable : 4127 )
#endif /* _MSC_VER */
#endif /* FT2_BUILD_LIBRARY */
#endif /* FTHEADER_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/ftheader.h
|
C++
|
gpl-3.0
| 23,919
|
/*
* This file registers the FreeType modules compiled into the library.
*
* If you use GNU make, this file IS NOT USED! Instead, it is created in
* the objects directory (normally `<topdir>/objs/`) based on information
* from `<topdir>/modules.cfg`.
*
* Please read `docs/INSTALL.ANY` and `docs/CUSTOMIZE` how to compile
* FreeType without GNU make.
*
*/
FT_USE_MODULE( FT_Module_Class, autofit_module_class )
FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
FT_USE_MODULE( FT_Module_Class, psaux_module_class )
FT_USE_MODULE( FT_Module_Class, psnames_module_class )
FT_USE_MODULE( FT_Module_Class, pshinter_module_class )
FT_USE_MODULE( FT_Module_Class, sfnt_module_class )
FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_svg_renderer_class )
/* EOF */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/ftmodule.h
|
C++
|
gpl-3.0
| 1,443
|
/****************************************************************************
*
* ftoption.h
*
* User-selectable configuration macros (specification only).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTOPTION_H_
#define FTOPTION_H_
#include <ft2build.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* USER-SELECTABLE CONFIGURATION MACROS
*
* This file contains the default configuration macro definitions for a
* standard build of the FreeType library. There are three ways to use
* this file to build project-specific versions of the library:
*
* - You can modify this file by hand, but this is not recommended in
* cases where you would like to build several versions of the library
* from a single source directory.
*
* - You can put a copy of this file in your build directory, more
* precisely in `$BUILD/freetype/config/ftoption.h`, where `$BUILD` is
* the name of a directory that is included _before_ the FreeType include
* path during compilation.
*
* The default FreeType Makefiles use the build directory
* `builds/<system>` by default, but you can easily change that for your
* own projects.
*
* - Copy the file <ft2build.h> to `$BUILD/ft2build.h` and modify it
* slightly to pre-define the macro `FT_CONFIG_OPTIONS_H` used to locate
* this file during the build. For example,
*
* ```
* #define FT_CONFIG_OPTIONS_H <myftoptions.h>
* #include <freetype/config/ftheader.h>
* ```
*
* will use `$BUILD/myftoptions.h` instead of this file for macro
* definitions.
*
* Note also that you can similarly pre-define the macro
* `FT_CONFIG_MODULES_H` used to locate the file listing of the modules
* that are statically linked to the library at compile time. By
* default, this file is `<freetype/config/ftmodule.h>`.
*
* We highly recommend using the third method whenever possible.
*
*/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*#************************************************************************
*
* If you enable this configuration option, FreeType recognizes an
* environment variable called `FREETYPE_PROPERTIES`, which can be used to
* control the various font drivers and modules. The controllable
* properties are listed in the section @properties.
*
* You have to undefine this configuration option on platforms that lack
* the concept of environment variables (and thus don't have the `getenv`
* function), for example Windows CE.
*
* `FREETYPE_PROPERTIES` has the following syntax form (broken here into
* multiple lines for better readability).
*
* ```
* <optional whitespace>
* <module-name1> ':'
* <property-name1> '=' <property-value1>
* <whitespace>
* <module-name2> ':'
* <property-name2> '=' <property-value2>
* ...
* ```
*
* Example:
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
* cff:no-stem-darkening=1
* ```
*
*/
#define FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
/**************************************************************************
*
* Uncomment the line below if you want to activate LCD rendering
* technology similar to ClearType in this build of the library. This
* technology triples the resolution in the direction color subpixels. To
* mitigate color fringes inherent to this technology, you also need to
* explicitly set up LCD filtering.
*
* When this macro is not defined, FreeType offers alternative LCD
* rendering technology that produces excellent output.
*/
/* #define FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
/**************************************************************************
*
* Many compilers provide a non-ANSI 64-bit data type that can be used by
* FreeType to speed up some computations. However, this will create some
* problems when compiling the library in strict ANSI mode.
*
* For this reason, the use of 64-bit integers is normally disabled when
* the `__STDC__` macro is defined. You can however disable this by
* defining the macro `FT_CONFIG_OPTION_FORCE_INT64` here.
*
* For most compilers, this will only create compilation warnings when
* building the library.
*
* ObNote: The compiler-specific 64-bit integers are detected in the
* file `ftconfig.h` either statically or through the `configure`
* script on supported platforms.
*/
#undef FT_CONFIG_OPTION_FORCE_INT64
/**************************************************************************
*
* If this macro is defined, do not try to use an assembler version of
* performance-critical functions (e.g., @FT_MulFix). You should only do
* that to verify that the assembler function works properly, or to execute
* benchmark tests of the various implementations.
*/
/* #define FT_CONFIG_OPTION_NO_ASSEMBLER */
/**************************************************************************
*
* If this macro is defined, try to use an inlined assembler version of the
* @FT_MulFix function, which is a 'hotspot' when loading and hinting
* glyphs, and which should be executed as fast as possible.
*
* Note that if your compiler or CPU is not supported, this will default to
* the standard and portable implementation found in `ftcalc.c`.
*/
#define FT_CONFIG_OPTION_INLINE_MULFIX
/**************************************************************************
*
* LZW-compressed file support.
*
* FreeType now handles font files that have been compressed with the
* `compress` program. This is mostly used to parse many of the PCF
* files that come with various X11 distributions. The implementation
* uses NetBSD's `zopen` to partially uncompress the file on the fly (see
* `src/lzw/ftgzip.c`).
*
* Define this macro if you want to enable this 'feature'.
*/
#define FT_CONFIG_OPTION_USE_LZW
/**************************************************************************
*
* Gzip-compressed file support.
*
* FreeType now handles font files that have been compressed with the
* `gzip` program. This is mostly used to parse many of the PCF files
* that come with XFree86. The implementation uses 'zlib' to partially
* uncompress the file on the fly (see `src/gzip/ftgzip.c`).
*
* Define this macro if you want to enable this 'feature'. See also the
* macro `FT_CONFIG_OPTION_SYSTEM_ZLIB` below.
*/
#define FT_CONFIG_OPTION_USE_ZLIB
/**************************************************************************
*
* ZLib library selection
*
* This macro is only used when `FT_CONFIG_OPTION_USE_ZLIB` is defined.
* It allows FreeType's 'ftgzip' component to link to the system's
* installation of the ZLib library. This is useful on systems like
* Unix or VMS where it generally is already available.
*
* If you let it undefined, the component will use its own copy of the
* zlib sources instead. These have been modified to be included
* directly within the component and **not** export external function
* names. This allows you to link any program with FreeType _and_ ZLib
* without linking conflicts.
*
* Do not `#undef` this macro here since the build system might define
* it for certain configurations only.
*
* If you use a build system like cmake or the `configure` script,
* options set by those programs have precedence, overwriting the value
* here with the configured one.
*
* If you use the GNU make build system directly (that is, without the
* `configure` script) and you define this macro, you also have to pass
* `SYSTEM_ZLIB=yes` as an argument to make.
*/
/* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
/**************************************************************************
*
* Bzip2-compressed file support.
*
* FreeType now handles font files that have been compressed with the
* `bzip2` program. This is mostly used to parse many of the PCF files
* that come with XFree86. The implementation uses `libbz2` to partially
* uncompress the file on the fly (see `src/bzip2/ftbzip2.c`). Contrary
* to gzip, bzip2 currently is not included and need to use the system
* available bzip2 implementation.
*
* Define this macro if you want to enable this 'feature'.
*
* If you use a build system like cmake or the `configure` script,
* options set by those programs have precedence, overwriting the value
* here with the configured one.
*/
/* #define FT_CONFIG_OPTION_USE_BZIP2 */
/**************************************************************************
*
* Define to disable the use of file stream functions and types, `FILE`,
* `fopen`, etc. Enables the use of smaller system libraries on embedded
* systems that have multiple system libraries, some with or without file
* stream support, in the cases where file stream support is not necessary
* such as memory loading of font files.
*/
/* #define FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT */
/**************************************************************************
*
* PNG bitmap support.
*
* FreeType now handles loading color bitmap glyphs in the PNG format.
* This requires help from the external libpng library. Uncompressed
* color bitmaps do not need any external libraries and will be supported
* regardless of this configuration.
*
* Define this macro if you want to enable this 'feature'.
*
* If you use a build system like cmake or the `configure` script,
* options set by those programs have precedence, overwriting the value
* here with the configured one.
*/
/* #define FT_CONFIG_OPTION_USE_PNG */
/**************************************************************************
*
* HarfBuzz support.
*
* FreeType uses the HarfBuzz library to improve auto-hinting of OpenType
* fonts. If available, many glyphs not directly addressable by a font's
* character map will be hinted also.
*
* Define this macro if you want to enable this 'feature'.
*
* If you use a build system like cmake or the `configure` script,
* options set by those programs have precedence, overwriting the value
* here with the configured one.
*/
/* #define FT_CONFIG_OPTION_USE_HARFBUZZ */
/**************************************************************************
*
* Brotli support.
*
* FreeType uses the Brotli library to provide support for decompressing
* WOFF2 streams.
*
* Define this macro if you want to enable this 'feature'.
*
* If you use a build system like cmake or the `configure` script,
* options set by those programs have precedence, overwriting the value
* here with the configured one.
*/
/* #define FT_CONFIG_OPTION_USE_BROTLI */
/**************************************************************************
*
* Glyph Postscript Names handling
*
* By default, FreeType 2 is compiled with the 'psnames' module. This
* module is in charge of converting a glyph name string into a Unicode
* value, or return a Macintosh standard glyph name for the use with the
* TrueType 'post' table.
*
* Undefine this macro if you do not want 'psnames' compiled in your
* build of FreeType. This has the following effects:
*
* - The TrueType driver will provide its own set of glyph names, if you
* build it to support postscript names in the TrueType 'post' table,
* but will not synthesize a missing Unicode charmap.
*
* - The Type~1 driver will not be able to synthesize a Unicode charmap
* out of the glyphs found in the fonts.
*
* You would normally undefine this configuration macro when building a
* version of FreeType that doesn't contain a Type~1 or CFF driver.
*/
#define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
/**************************************************************************
*
* Postscript Names to Unicode Values support
*
* By default, FreeType~2 is built with the 'psnames' module compiled in.
* Among other things, the module is used to convert a glyph name into a
* Unicode value. This is especially useful in order to synthesize on
* the fly a Unicode charmap from the CFF/Type~1 driver through a big
* table named the 'Adobe Glyph List' (AGL).
*
* Undefine this macro if you do not want the Adobe Glyph List compiled
* in your 'psnames' module. The Type~1 driver will not be able to
* synthesize a Unicode charmap out of the glyphs found in the fonts.
*/
#define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
/**************************************************************************
*
* Support for Mac fonts
*
* Define this macro if you want support for outline fonts in Mac format
* (mac dfont, mac resource, macbinary containing a mac resource) on
* non-Mac platforms.
*
* Note that the 'FOND' resource isn't checked.
*/
#define FT_CONFIG_OPTION_MAC_FONTS
/**************************************************************************
*
* Guessing methods to access embedded resource forks
*
* Enable extra Mac fonts support on non-Mac platforms (e.g., GNU/Linux).
*
* Resource forks which include fonts data are stored sometimes in
* locations which users or developers don't expected. In some cases,
* resource forks start with some offset from the head of a file. In
* other cases, the actual resource fork is stored in file different from
* what the user specifies. If this option is activated, FreeType tries
* to guess whether such offsets or different file names must be used.
*
* Note that normal, direct access of resource forks is controlled via
* the `FT_CONFIG_OPTION_MAC_FONTS` option.
*/
#ifdef FT_CONFIG_OPTION_MAC_FONTS
#define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
#endif
/**************************************************************************
*
* Allow the use of `FT_Incremental_Interface` to load typefaces that
* contain no glyph data, but supply it via a callback function. This is
* required by clients supporting document formats which supply font data
* incrementally as the document is parsed, such as the Ghostscript
* interpreter for the PostScript language.
*/
#define FT_CONFIG_OPTION_INCREMENTAL
/**************************************************************************
*
* The size in bytes of the render pool used by the scan-line converter to
* do all of its work.
*/
#define FT_RENDER_POOL_SIZE 16384L
/**************************************************************************
*
* FT_MAX_MODULES
*
* The maximum number of modules that can be registered in a single
* FreeType library object. 32~is the default.
*/
#define FT_MAX_MODULES 32
/**************************************************************************
*
* Debug level
*
* FreeType can be compiled in debug or trace mode. In debug mode,
* errors are reported through the 'ftdebug' component. In trace mode,
* additional messages are sent to the standard output during execution.
*
* Define `FT_DEBUG_LEVEL_ERROR` to build the library in debug mode.
* Define `FT_DEBUG_LEVEL_TRACE` to build it in trace mode.
*
* Don't define any of these macros to compile in 'release' mode!
*
* Do not `#undef` these macros here since the build system might define
* them for certain configurations only.
*/
/* #define FT_DEBUG_LEVEL_ERROR */
/* #define FT_DEBUG_LEVEL_TRACE */
/**************************************************************************
*
* Logging
*
* Compiling FreeType in debug or trace mode makes FreeType write error
* and trace log messages to `stderr`. Enabling this macro
* automatically forces the `FT_DEBUG_LEVEL_ERROR` and
* `FT_DEBUG_LEVEL_TRACE` macros and allows FreeType to write error and
* trace log messages to a file instead of `stderr`. For writing logs
* to a file, FreeType uses an the external `dlg` library (the source
* code is in `src/dlg`).
*
* This option needs a C99 compiler.
*/
/* #define FT_DEBUG_LOGGING */
/**************************************************************************
*
* Autofitter debugging
*
* If `FT_DEBUG_AUTOFIT` is defined, FreeType provides some means to
* control the autofitter behaviour for debugging purposes with global
* boolean variables (consequently, you should **never** enable this
* while compiling in 'release' mode):
*
* ```
* _af_debug_disable_horz_hints
* _af_debug_disable_vert_hints
* _af_debug_disable_blue_hints
* ```
*
* Additionally, the following functions provide dumps of various
* internal autofit structures to stdout (using `printf`):
*
* ```
* af_glyph_hints_dump_points
* af_glyph_hints_dump_segments
* af_glyph_hints_dump_edges
* af_glyph_hints_get_num_segments
* af_glyph_hints_get_segment_offset
* ```
*
* As an argument, they use another global variable:
*
* ```
* _af_debug_hints
* ```
*
* Please have a look at the `ftgrid` demo program to see how those
* variables and macros should be used.
*
* Do not `#undef` these macros here since the build system might define
* them for certain configurations only.
*/
/* #define FT_DEBUG_AUTOFIT */
/**************************************************************************
*
* Memory Debugging
*
* FreeType now comes with an integrated memory debugger that is capable
* of detecting simple errors like memory leaks or double deletes. To
* compile it within your build of the library, you should define
* `FT_DEBUG_MEMORY` here.
*
* Note that the memory debugger is only activated at runtime when when
* the _environment_ variable `FT2_DEBUG_MEMORY` is defined also!
*
* Do not `#undef` this macro here since the build system might define it
* for certain configurations only.
*/
/* #define FT_DEBUG_MEMORY */
/**************************************************************************
*
* Module errors
*
* If this macro is set (which is _not_ the default), the higher byte of
* an error code gives the module in which the error has occurred, while
* the lower byte is the real error code.
*
* Setting this macro makes sense for debugging purposes only, since it
* would break source compatibility of certain programs that use
* FreeType~2.
*
* More details can be found in the files `ftmoderr.h` and `fterrors.h`.
*/
#undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
/**************************************************************************
*
* OpenType SVG Glyph Support
*
* Setting this macro enables support for OpenType SVG glyphs. By
* default, FreeType can only fetch SVG documents. However, it can also
* render them if external rendering hook functions are plugged in at
* runtime.
*
* More details on the hooks can be found in file `otsvg.h`.
*/
#define FT_CONFIG_OPTION_SVG
/**************************************************************************
*
* Error Strings
*
* If this macro is set, `FT_Error_String` will return meaningful
* descriptions. This is not enabled by default to reduce the overall
* size of FreeType.
*
* More details can be found in the file `fterrors.h`.
*/
/* #define FT_CONFIG_OPTION_ERROR_STRINGS */
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** S F N T D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_EMBEDDED_BITMAPS` if you want to support
* embedded bitmaps in all formats using the 'sfnt' module (namely
* TrueType~& OpenType).
*/
#define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_COLOR_LAYERS` if you want to support colored
* outlines (from the 'COLR'/'CPAL' tables) in all formats using the 'sfnt'
* module (namely TrueType~& OpenType).
*/
#define TT_CONFIG_OPTION_COLOR_LAYERS
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_POSTSCRIPT_NAMES` if you want to be able to
* load and enumerate the glyph Postscript names in a TrueType or OpenType
* file.
*
* Note that when you do not compile the 'psnames' module by undefining the
* above `FT_CONFIG_OPTION_POSTSCRIPT_NAMES`, the 'sfnt' module will
* contain additional code used to read the PS Names table from a font.
*
* (By default, the module uses 'psnames' to extract glyph names.)
*/
#define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_SFNT_NAMES` if your applications need to access
* the internal name table in a SFNT-based format like TrueType or
* OpenType. The name table contains various strings used to describe the
* font, like family name, copyright, version, etc. It does not contain
* any glyph name though.
*
* Accessing SFNT names is done through the functions declared in
* `ftsnames.h`.
*/
#define TT_CONFIG_OPTION_SFNT_NAMES
/**************************************************************************
*
* TrueType CMap support
*
* Here you can fine-tune which TrueType CMap table format shall be
* supported.
*/
#define TT_CONFIG_CMAP_FORMAT_0
#define TT_CONFIG_CMAP_FORMAT_2
#define TT_CONFIG_CMAP_FORMAT_4
#define TT_CONFIG_CMAP_FORMAT_6
#define TT_CONFIG_CMAP_FORMAT_8
#define TT_CONFIG_CMAP_FORMAT_10
#define TT_CONFIG_CMAP_FORMAT_12
#define TT_CONFIG_CMAP_FORMAT_13
#define TT_CONFIG_CMAP_FORMAT_14
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_BYTECODE_INTERPRETER` if you want to compile a
* bytecode interpreter in the TrueType driver.
*
* By undefining this, you will only compile the code necessary to load
* TrueType glyphs without hinting.
*
* Do not `#undef` this macro here, since the build system might define it
* for certain configurations only.
*/
#define TT_CONFIG_OPTION_BYTECODE_INTERPRETER
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_SUBPIXEL_HINTING` if you want to compile
* subpixel hinting support into the TrueType driver. This modifies the
* TrueType hinting mechanism when anything but `FT_RENDER_MODE_MONO` is
* requested.
*
* In particular, it modifies the bytecode interpreter to interpret (or
* not) instructions in a certain way so that all TrueType fonts look like
* they do in a Windows ClearType (DirectWrite) environment. See [1] for a
* technical overview on what this means. See `ttinterp.h` for more
* details on the LEAN option.
*
* There are three possible values.
*
* Value 1:
* This value is associated with the 'Infinality' moniker, contributed by
* an individual nicknamed Infinality with the goal of making TrueType
* fonts render better than on Windows. A high amount of configurability
* and flexibility, down to rules for single glyphs in fonts, but also
* very slow. Its experimental and slow nature and the original
* developer losing interest meant that this option was never enabled in
* default builds.
*
* The corresponding interpreter version is v38.
*
* Value 2:
* The new default mode for the TrueType driver. The Infinality code
* base was stripped to the bare minimum and all configurability removed
* in the name of speed and simplicity. The configurability was mainly
* aimed at legacy fonts like 'Arial', 'Times New Roman', or 'Courier'.
* Legacy fonts are fonts that modify vertical stems to achieve clean
* black-and-white bitmaps. The new mode focuses on applying a minimal
* set of rules to all fonts indiscriminately so that modern and web
* fonts render well while legacy fonts render okay.
*
* The corresponding interpreter version is v40.
*
* Value 3:
* Compile both, making both v38 and v40 available (the latter is the
* default).
*
* By undefining these, you get rendering behavior like on Windows without
* ClearType, i.e., Windows XP without ClearType enabled and Win9x
* (interpreter version v35). Or not, depending on how much hinting blood
* and testing tears the font designer put into a given font. If you
* define one or both subpixel hinting options, you can switch between
* between v35 and the ones you define (using `FT_Property_Set`).
*
* This option requires `TT_CONFIG_OPTION_BYTECODE_INTERPRETER` to be
* defined.
*
* [1]
* https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx
*/
/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING 1 */
#define TT_CONFIG_OPTION_SUBPIXEL_HINTING 2
/* #define TT_CONFIG_OPTION_SUBPIXEL_HINTING ( 1 | 2 ) */
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED` to compile the
* TrueType glyph loader to use Apple's definition of how to handle
* component offsets in composite glyphs.
*
* Apple and MS disagree on the default behavior of component offsets in
* composites. Apple says that they should be scaled by the scaling
* factors in the transformation matrix (roughly, it's more complex) while
* MS says they should not. OpenType defines two bits in the composite
* flags array which can be used to disambiguate, but old fonts will not
* have them.
*
* https://www.microsoft.com/typography/otspec/glyf.htm
* https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6glyf.html
*/
#undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_GX_VAR_SUPPORT` if you want to include support
* for Apple's distortable font technology ('fvar', 'gvar', 'cvar', and
* 'avar' tables). Tagged 'Font Variations', this is now part of OpenType
* also. This has many similarities to Type~1 Multiple Masters support.
*/
#define TT_CONFIG_OPTION_GX_VAR_SUPPORT
/**************************************************************************
*
* Define `TT_CONFIG_OPTION_BDF` if you want to include support for an
* embedded 'BDF~' table within SFNT-based bitmap formats.
*/
#define TT_CONFIG_OPTION_BDF
/**************************************************************************
*
* Option `TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES` controls the maximum
* number of bytecode instructions executed for a single run of the
* bytecode interpreter, needed to prevent infinite loops. You don't want
* to change this except for very special situations (e.g., making a
* library fuzzer spend less time to handle broken fonts).
*
* It is not expected that this value is ever modified by a configuring
* script; instead, it gets surrounded with `#ifndef ... #endif` so that
* the value can be set as a preprocessor option on the compiler's command
* line.
*/
#ifndef TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES
#define TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES 1000000L
#endif
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* `T1_MAX_DICT_DEPTH` is the maximum depth of nest dictionaries and arrays
* in the Type~1 stream (see `t1load.c`). A minimum of~4 is required.
*/
#define T1_MAX_DICT_DEPTH 5
/**************************************************************************
*
* `T1_MAX_SUBRS_CALLS` details the maximum number of nested sub-routine
* calls during glyph loading.
*/
#define T1_MAX_SUBRS_CALLS 16
/**************************************************************************
*
* `T1_MAX_CHARSTRING_OPERANDS` is the charstring stack's capacity. A
* minimum of~16 is required.
*
* The Chinese font 'MingTiEG-Medium' (covering the CNS 11643 character
* set) needs 256.
*/
#define T1_MAX_CHARSTRINGS_OPERANDS 256
/**************************************************************************
*
* Define this configuration macro if you want to prevent the compilation
* of the 't1afm' module, which is in charge of reading Type~1 AFM files
* into an existing face. Note that if set, the Type~1 driver will be
* unable to produce kerning distances.
*/
#undef T1_CONFIG_OPTION_NO_AFM
/**************************************************************************
*
* Define this configuration macro if you want to prevent the compilation
* of the Multiple Masters font support in the Type~1 driver.
*/
#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
/**************************************************************************
*
* `T1_CONFIG_OPTION_OLD_ENGINE` controls whether the pre-Adobe Type~1
* engine gets compiled into FreeType. If defined, it is possible to
* switch between the two engines using the `hinting-engine` property of
* the 'type1' driver module.
*/
/* #define T1_CONFIG_OPTION_OLD_ENGINE */
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** C F F D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Using `CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4}` it is
* possible to set up the default values of the four control points that
* define the stem darkening behaviour of the (new) CFF engine. For more
* details please read the documentation of the `darkening-parameters`
* property (file `ftdriver.h`), which allows the control at run-time.
*
* Do **not** undefine these macros!
*/
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 500
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 400
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 1000
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 275
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 1667
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 275
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 2333
#define CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 0
/**************************************************************************
*
* `CFF_CONFIG_OPTION_OLD_ENGINE` controls whether the pre-Adobe CFF engine
* gets compiled into FreeType. If defined, it is possible to switch
* between the two engines using the `hinting-engine` property of the 'cff'
* driver module.
*/
/* #define CFF_CONFIG_OPTION_OLD_ENGINE */
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** P C F D R I V E R C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* There are many PCF fonts just called 'Fixed' which look completely
* different, and which have nothing to do with each other. When selecting
* 'Fixed' in KDE or Gnome one gets results that appear rather random, the
* style changes often if one changes the size and one cannot select some
* fonts at all. This option makes the 'pcf' module prepend the foundry
* name (plus a space) to the family name.
*
* We also check whether we have 'wide' characters; all put together, we
* get family names like 'Sony Fixed' or 'Misc Fixed Wide'.
*
* If this option is activated, it can be controlled with the
* `no-long-family-names` property of the 'pcf' driver module.
*/
/* #define PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** A U T O F I T M O D U L E C O N F I G U R A T I O N ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* Compile 'autofit' module with CJK (Chinese, Japanese, Korean) script
* support.
*/
#define AF_CONFIG_OPTION_CJK
/**************************************************************************
*
* Compile 'autofit' module with fallback Indic script support, covering
* some scripts that the 'latin' submodule of the 'autofit' module doesn't
* (yet) handle. Currently, this needs option `AF_CONFIG_OPTION_CJK`.
*/
#ifdef AF_CONFIG_OPTION_CJK
#define AF_CONFIG_OPTION_INDIC
#endif
/**************************************************************************
*
* Use TrueType-like size metrics for 'light' auto-hinting.
*
* It is strongly recommended to avoid this option, which exists only to
* help some legacy applications retain its appearance and behaviour with
* respect to auto-hinted TrueType fonts.
*
* The very reason this option exists at all are GNU/Linux distributions
* like Fedora that did not un-patch the following change (which was
* present in FreeType between versions 2.4.6 and 2.7.1, inclusive).
*
* ```
* 2011-07-16 Steven Chu <steven.f.chu@gmail.com>
*
* [truetype] Fix metrics on size request for scalable fonts.
* ```
*
* This problematic commit is now reverted (more or less).
*/
/* #define AF_CONFIG_OPTION_TT_SIZE_METRICS */
/* */
/*
* This macro is obsolete. Support has been removed in FreeType version
* 2.5.
*/
/* #define FT_CONFIG_OPTION_OLD_INTERNALS */
/*
* The next three macros are defined if native TrueType hinting is
* requested by the definitions above. Don't change this.
*/
#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
#define TT_USE_BYTECODE_INTERPRETER
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 1
#define TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
#endif
#if TT_CONFIG_OPTION_SUBPIXEL_HINTING & 2
#define TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL
#endif
#endif
#endif
/*
* The TT_SUPPORT_COLRV1 macro is defined to indicate to clients that this
* version of FreeType has support for 'COLR' v1 API. This definition is
* useful to FreeType clients that want to build in support for 'COLR' v1
* depending on a tip-of-tree checkout before it is officially released in
* FreeType, and while the feature cannot yet be tested against using
* version macros. Don't change this macro. This may be removed once the
* feature is in a FreeType release version and version macros can be used
* to test for availability.
*/
#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
#define TT_SUPPORT_COLRV1
#endif
/*
* Check CFF darkening parameters. The checks are the same as in function
* `cff_property_set` in file `cffdrivr.c`.
*/
#if CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 < 0 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 < 0 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 < 0 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X2 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X3 > \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_X4 || \
\
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y1 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y2 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y3 > 500 || \
CFF_CONFIG_OPTION_DARKENING_PARAMETER_Y4 > 500
#error "Invalid CFF darkening parameters!"
#endif
FT_END_HEADER
#endif /* FTOPTION_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/ftoption.h
|
C++
|
gpl-3.0
| 40,327
|
/****************************************************************************
*
* ftstdlib.h
*
* ANSI-specific library and header configuration file (specification
* only).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file is used to group all `#includes` to the ANSI~C library that
* FreeType normally requires. It also defines macros to rename the
* standard functions within the FreeType source code.
*
* Load a file which defines `FTSTDLIB_H_` before this one to override it.
*
*/
#ifndef FTSTDLIB_H_
#define FTSTDLIB_H_
#include <stddef.h>
#define ft_ptrdiff_t ptrdiff_t
/**************************************************************************
*
* integer limits
*
* `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
* `int` and `long` in bytes at compile-time. So far, this works for all
* platforms the library has been tested on. We also check `ULLONG_MAX`
* to see whether we can use 64-bit `long long` later on.
*
* Note that on the extremely rare platforms that do not provide integer
* types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
* `int` is 36~bits), we do not make any guarantee about the correct
* behaviour of FreeType~2 with all fonts.
*
* In these cases, `ftconfig.h` will refuse to compile anyway with a
* message like 'couldn't find 32-bit type' or something similar.
*
*/
#include <limits.h>
#define FT_CHAR_BIT CHAR_BIT
#define FT_USHORT_MAX USHRT_MAX
#define FT_INT_MAX INT_MAX
#define FT_INT_MIN INT_MIN
#define FT_UINT_MAX UINT_MAX
#define FT_LONG_MIN LONG_MIN
#define FT_LONG_MAX LONG_MAX
#define FT_ULONG_MAX ULONG_MAX
#ifdef LLONG_MAX
#define FT_LLONG_MAX LLONG_MAX
#endif
#ifdef LLONG_MIN
#define FT_LLONG_MIN LLONG_MIN
#endif
#ifdef ULLONG_MAX
#define FT_ULLONG_MAX ULLONG_MAX
#endif
/**************************************************************************
*
* character and string processing
*
*/
#include <string.h>
#define ft_memchr memchr
#define ft_memcmp memcmp
#define ft_memcpy memcpy
#define ft_memmove memmove
#define ft_memset memset
#define ft_strcat strcat
#define ft_strcmp strcmp
#define ft_strcpy strcpy
#define ft_strlen strlen
#define ft_strncmp strncmp
#define ft_strncpy strncpy
#define ft_strrchr strrchr
#define ft_strstr strstr
/**************************************************************************
*
* file handling
*
*/
#include <stdio.h>
#define FT_FILE FILE
#define ft_fclose fclose
#define ft_fopen fopen
#define ft_fread fread
#define ft_fseek fseek
#define ft_ftell ftell
#define ft_sprintf sprintf
/**************************************************************************
*
* sorting
*
*/
#include <stdlib.h>
#define ft_qsort qsort
/**************************************************************************
*
* memory allocation
*
*/
#define ft_scalloc calloc
#define ft_sfree free
#define ft_smalloc malloc
#define ft_srealloc realloc
/**************************************************************************
*
* miscellaneous
*
*/
#define ft_strtol strtol
#define ft_getenv getenv
/**************************************************************************
*
* execution control
*
*/
#include <setjmp.h>
#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */
/* `jmp_buf` is defined as a macro */
/* on certain platforms */
#define ft_longjmp longjmp
#define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
/* The following is only used for debugging purposes, i.e., if */
/* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
#include <stdarg.h>
#endif /* FTSTDLIB_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/ftstdlib.h
|
C++
|
gpl-3.0
| 4,568
|
/****************************************************************************
*
* config/integer-types.h
*
* FreeType integer types definitions.
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FREETYPE_CONFIG_INTEGER_TYPES_H_
#define FREETYPE_CONFIG_INTEGER_TYPES_H_
/* There are systems (like the Texas Instruments 'C54x) where a `char` */
/* has 16~bits. ANSI~C says that `sizeof(char)` is always~1. Since an */
/* `int` has 16~bits also for this system, `sizeof(int)` gives~1 which */
/* is probably unexpected. */
/* */
/* `CHAR_BIT` (defined in `limits.h`) gives the number of bits in a */
/* `char` type. */
#ifndef FT_CHAR_BIT
#define FT_CHAR_BIT CHAR_BIT
#endif
#ifndef FT_SIZEOF_INT
/* The size of an `int` type. */
#if FT_UINT_MAX == 0xFFFFUL
#define FT_SIZEOF_INT ( 16 / FT_CHAR_BIT )
#elif FT_UINT_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_INT ( 32 / FT_CHAR_BIT )
#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_INT ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `int' type!"
#endif
#endif /* !defined(FT_SIZEOF_INT) */
#ifndef FT_SIZEOF_LONG
/* The size of a `long` type. A five-byte `long` (as used e.g. on the */
/* DM642) is recognized but avoided. */
#if FT_ULONG_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `long' type!"
#endif
#endif /* !defined(FT_SIZEOF_LONG) */
#ifndef FT_SIZEOF_LONG_LONG
/* The size of a `long long` type if available */
#if defined( FT_ULLONG_MAX ) && FT_ULLONG_MAX >= 0xFFFFFFFFFFFFFFFFULL
#define FT_SIZEOF_LONG_LONG ( 64 / FT_CHAR_BIT )
#else
#define FT_SIZEOF_LONG_LONG 0
#endif
#endif /* !defined(FT_SIZEOF_LONG_LONG) */
/**************************************************************************
*
* @section:
* basic_types
*
*/
/**************************************************************************
*
* @type:
* FT_Int16
*
* @description:
* A typedef for a 16bit signed integer type.
*/
typedef signed short FT_Int16;
/**************************************************************************
*
* @type:
* FT_UInt16
*
* @description:
* A typedef for a 16bit unsigned integer type.
*/
typedef unsigned short FT_UInt16;
/* */
/* this #if 0 ... #endif clause is for documentation purposes */
#if 0
/**************************************************************************
*
* @type:
* FT_Int32
*
* @description:
* A typedef for a 32bit signed integer type. The size depends on the
* configuration.
*/
typedef signed XXX FT_Int32;
/**************************************************************************
*
* @type:
* FT_UInt32
*
* A typedef for a 32bit unsigned integer type. The size depends on the
* configuration.
*/
typedef unsigned XXX FT_UInt32;
/**************************************************************************
*
* @type:
* FT_Int64
*
* A typedef for a 64bit signed integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef signed XXX FT_Int64;
/**************************************************************************
*
* @type:
* FT_UInt64
*
* A typedef for a 64bit unsigned integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef unsigned XXX FT_UInt64;
/* */
#endif
#if FT_SIZEOF_INT == ( 32 / FT_CHAR_BIT )
typedef signed int FT_Int32;
typedef unsigned int FT_UInt32;
#elif FT_SIZEOF_LONG == ( 32 / FT_CHAR_BIT )
typedef signed long FT_Int32;
typedef unsigned long FT_UInt32;
#else
#error "no 32bit type found -- please check your configuration files"
#endif
/* look up an integer type that is at least 32~bits */
#if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
typedef int FT_Fast;
typedef unsigned int FT_UFast;
#elif FT_SIZEOF_LONG >= ( 32 / FT_CHAR_BIT )
typedef long FT_Fast;
typedef unsigned long FT_UFast;
#endif
/* determine whether we have a 64-bit integer type */
#if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
#define FT_INT64 long
#define FT_UINT64 unsigned long
#elif FT_SIZEOF_LONG_LONG >= ( 64 / FT_CHAR_BIT )
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
/**************************************************************************
*
* A 64-bit data type may create compilation problems if you compile in
* strict ANSI mode. To avoid them, we disable other 64-bit data types if
* `__STDC__` is defined. You can however ignore this rule by defining the
* `FT_CONFIG_OPTION_FORCE_INT64` configuration macro.
*/
#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
#if defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __BORLANDC__ ) /* Borland C++ */
/* XXXX: We should probably check the value of `__BORLANDC__` in order */
/* to test the compiler version. */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __WATCOMC__ ) && __WATCOMC__ >= 1100 /* Watcom C++ */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __GNUC__ )
/* GCC provides the `long long` type */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#endif /* !__STDC__ */
#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
#ifdef FT_INT64
typedef FT_INT64 FT_Int64;
typedef FT_UINT64 FT_UInt64;
#endif
#endif /* FREETYPE_CONFIG_INTEGER_TYPES_H_ */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/integer-types.h
|
C++
|
gpl-3.0
| 7,072
|
/****************************************************************************
*
* config/mac-support.h
*
* Mac/OS X support configuration header.
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FREETYPE_CONFIG_MAC_SUPPORT_H_
#define FREETYPE_CONFIG_MAC_SUPPORT_H_
/**************************************************************************
*
* Mac support
*
* This is the only necessary change, so it is defined here instead
* providing a new configuration file.
*/
#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) )
/* No Carbon frameworks for 64bit 10.4.x. */
/* `AvailabilityMacros.h` is available since Mac OS X 10.2, */
/* so guess the system version by maximum errno before inclusion. */
#include <errno.h>
#ifdef ECANCELED /* defined since 10.2 */
#include "AvailabilityMacros.h"
#endif
#if defined( __LP64__ ) && \
( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
#undef FT_MACINTOSH
#endif
#elif defined( __SC__ ) || defined( __MRC__ )
/* Classic MacOS compilers */
#include "ConditionalMacros.h"
#if TARGET_OS_MAC
#define FT_MACINTOSH 1
#endif
#endif /* Mac support */
#endif /* FREETYPE_CONFIG_MAC_SUPPORT_H_ */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/mac-support.h
|
C++
|
gpl-3.0
| 1,597
|
/****************************************************************************
*
* config/public-macros.h
*
* Define a set of compiler macros used in public FreeType headers.
*
* Copyright (C) 2020-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/*
* The definitions in this file are used by the public FreeType headers
* and thus should be considered part of the public API.
*
* Other compiler-specific macro definitions that are not exposed by the
* FreeType API should go into
* `include/freetype/internal/compiler-macros.h` instead.
*/
#ifndef FREETYPE_CONFIG_PUBLIC_MACROS_H_
#define FREETYPE_CONFIG_PUBLIC_MACROS_H_
/*
* `FT_BEGIN_HEADER` and `FT_END_HEADER` might have already been defined
* by `freetype/config/ftheader.h`, but we don't want to include this
* header here, so redefine the macros here only when needed. Their
* definition is very stable, so keeping them in sync with the ones in the
* header should not be a maintenance issue.
*/
#ifndef FT_BEGIN_HEADER
#ifdef __cplusplus
#define FT_BEGIN_HEADER extern "C" {
#else
#define FT_BEGIN_HEADER /* empty */
#endif
#endif /* FT_BEGIN_HEADER */
#ifndef FT_END_HEADER
#ifdef __cplusplus
#define FT_END_HEADER }
#else
#define FT_END_HEADER /* empty */
#endif
#endif /* FT_END_HEADER */
FT_BEGIN_HEADER
/*
* Mark a function declaration as public. This ensures it will be
* properly exported to client code. Place this before a function
* declaration.
*
* NOTE: This macro should be considered an internal implementation
* detail, and not part of the FreeType API. It is only defined here
* because it is needed by `FT_EXPORT`.
*/
/* Visual C, mingw */
#if defined( _WIN32 )
#if defined( FT2_BUILD_LIBRARY ) && defined( DLL_EXPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllexport )
#elif defined( DLL_IMPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllimport )
#endif
/* gcc, clang */
#elif ( defined( __GNUC__ ) && __GNUC__ >= 4 ) || defined( __clang__ )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE \
__attribute__(( visibility( "default" ) ))
/* Sun */
#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __global
#endif
#ifndef FT_PUBLIC_FUNCTION_ATTRIBUTE
#define FT_PUBLIC_FUNCTION_ATTRIBUTE /* empty */
#endif
/*
* Define a public FreeType API function. This ensures it is properly
* exported or imported at build time. The macro parameter is the
* function's return type as in:
*
* FT_EXPORT( FT_Bool )
* FT_Object_Method( FT_Object obj,
* ... );
*
* NOTE: This requires that all `FT_EXPORT` uses are inside
* `FT_BEGIN_HEADER ... FT_END_HEADER` blocks. This guarantees that the
* functions are exported with C linkage, even when the header is included
* by a C++ source file.
*/
#define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x
/*
* `FT_UNUSED` indicates that a given parameter is not used -- this is
* only used to get rid of unpleasant compiler warnings.
*
* Technically, this was not meant to be part of the public API, but some
* third-party code depends on it.
*/
#ifndef FT_UNUSED
#define FT_UNUSED( arg ) ( (arg) = (arg) )
#endif
/*
* Support for casts in both C and C++.
*/
#ifdef __cplusplus
#define FT_STATIC_CAST( type, var ) static_cast<type>(var)
#define FT_REINTERPRET_CAST( type, var ) reinterpret_cast<type>(var)
#define FT_STATIC_BYTE_CAST( type, var ) \
static_cast<type>( static_cast<unsigned char>( var ) )
#else
#define FT_STATIC_CAST( type, var ) (type)(var)
#define FT_REINTERPRET_CAST( type, var ) (type)(var)
#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var)
#endif
FT_END_HEADER
#endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/config/public-macros.h
|
C++
|
gpl-3.0
| 4,207
|
/****************************************************************************
*
* freetype.h
*
* FreeType high-level API and common types (specification only).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FREETYPE_H_
#define FREETYPE_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/fttypes.h>
#include <freetype/fterrors.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* preamble
*
* @title:
* Preamble
*
* @abstract:
* What FreeType is and isn't
*
* @description:
* FreeType is a library that provides access to glyphs in font files. It
* scales the glyph images and their metrics to a requested size, and it
* rasterizes the glyph images to produce pixel or subpixel alpha coverage
* bitmaps.
*
* Note that FreeType is _not_ a text layout engine. You have to use
* higher-level libraries like HarfBuzz, Pango, or ICU for that.
*
* Note also that FreeType does _not_ perform alpha blending or
* compositing the resulting bitmaps or pixmaps by itself. Use your
* favourite graphics library (for example, Cairo or Skia) to further
* process FreeType's output.
*
*/
/**************************************************************************
*
* @section:
* header_inclusion
*
* @title:
* FreeType's header inclusion scheme
*
* @abstract:
* How client applications should include FreeType header files.
*
* @description:
* To be as flexible as possible (and for historical reasons), you must
* load file `ft2build.h` first before other header files, for example
*
* ```
* #include <ft2build.h>
*
* #include <freetype/freetype.h>
* #include <freetype/ftoutln.h>
* ```
*/
/**************************************************************************
*
* @section:
* user_allocation
*
* @title:
* User allocation
*
* @abstract:
* How client applications should allocate FreeType data structures.
*
* @description:
* FreeType assumes that structures allocated by the user and passed as
* arguments are zeroed out except for the actual data. In other words,
* it is recommended to use `calloc` (or variants of it) instead of
* `malloc` for allocation.
*
*/
/*************************************************************************/
/*************************************************************************/
/* */
/* B A S I C T Y P E S */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @section:
* base_interface
*
* @title:
* Base Interface
*
* @abstract:
* The FreeType~2 base font interface.
*
* @description:
* This section describes the most important public high-level API
* functions of FreeType~2.
*
* @order:
* FT_Library
* FT_Face
* FT_Size
* FT_GlyphSlot
* FT_CharMap
* FT_Encoding
* FT_ENC_TAG
*
* FT_FaceRec
*
* FT_FACE_FLAG_SCALABLE
* FT_FACE_FLAG_FIXED_SIZES
* FT_FACE_FLAG_FIXED_WIDTH
* FT_FACE_FLAG_HORIZONTAL
* FT_FACE_FLAG_VERTICAL
* FT_FACE_FLAG_COLOR
* FT_FACE_FLAG_SFNT
* FT_FACE_FLAG_CID_KEYED
* FT_FACE_FLAG_TRICKY
* FT_FACE_FLAG_KERNING
* FT_FACE_FLAG_MULTIPLE_MASTERS
* FT_FACE_FLAG_VARIATION
* FT_FACE_FLAG_GLYPH_NAMES
* FT_FACE_FLAG_EXTERNAL_STREAM
* FT_FACE_FLAG_HINTER
* FT_FACE_FLAG_SVG
* FT_FACE_FLAG_SBIX
* FT_FACE_FLAG_SBIX_OVERLAY
*
* FT_HAS_HORIZONTAL
* FT_HAS_VERTICAL
* FT_HAS_KERNING
* FT_HAS_FIXED_SIZES
* FT_HAS_GLYPH_NAMES
* FT_HAS_COLOR
* FT_HAS_MULTIPLE_MASTERS
* FT_HAS_SVG
* FT_HAS_SBIX
* FT_HAS_SBIX_OVERLAY
*
* FT_IS_SFNT
* FT_IS_SCALABLE
* FT_IS_FIXED_WIDTH
* FT_IS_CID_KEYED
* FT_IS_TRICKY
* FT_IS_NAMED_INSTANCE
* FT_IS_VARIATION
*
* FT_STYLE_FLAG_BOLD
* FT_STYLE_FLAG_ITALIC
*
* FT_SizeRec
* FT_Size_Metrics
*
* FT_GlyphSlotRec
* FT_Glyph_Metrics
* FT_SubGlyph
*
* FT_Bitmap_Size
*
* FT_Init_FreeType
* FT_Done_FreeType
*
* FT_New_Face
* FT_Done_Face
* FT_Reference_Face
* FT_New_Memory_Face
* FT_Face_Properties
* FT_Open_Face
* FT_Open_Args
* FT_Parameter
* FT_Attach_File
* FT_Attach_Stream
*
* FT_Set_Char_Size
* FT_Set_Pixel_Sizes
* FT_Request_Size
* FT_Select_Size
* FT_Size_Request_Type
* FT_Size_RequestRec
* FT_Size_Request
* FT_Set_Transform
* FT_Get_Transform
* FT_Load_Glyph
* FT_Get_Char_Index
* FT_Get_First_Char
* FT_Get_Next_Char
* FT_Get_Name_Index
* FT_Load_Char
*
* FT_OPEN_MEMORY
* FT_OPEN_STREAM
* FT_OPEN_PATHNAME
* FT_OPEN_DRIVER
* FT_OPEN_PARAMS
*
* FT_LOAD_DEFAULT
* FT_LOAD_RENDER
* FT_LOAD_MONOCHROME
* FT_LOAD_LINEAR_DESIGN
* FT_LOAD_NO_SCALE
* FT_LOAD_NO_HINTING
* FT_LOAD_NO_BITMAP
* FT_LOAD_SBITS_ONLY
* FT_LOAD_NO_AUTOHINT
* FT_LOAD_COLOR
*
* FT_LOAD_VERTICAL_LAYOUT
* FT_LOAD_IGNORE_TRANSFORM
* FT_LOAD_FORCE_AUTOHINT
* FT_LOAD_NO_RECURSE
* FT_LOAD_PEDANTIC
*
* FT_LOAD_TARGET_NORMAL
* FT_LOAD_TARGET_LIGHT
* FT_LOAD_TARGET_MONO
* FT_LOAD_TARGET_LCD
* FT_LOAD_TARGET_LCD_V
*
* FT_LOAD_TARGET_MODE
*
* FT_Render_Glyph
* FT_Render_Mode
* FT_Get_Kerning
* FT_Kerning_Mode
* FT_Get_Track_Kerning
* FT_Get_Glyph_Name
* FT_Get_Postscript_Name
*
* FT_CharMapRec
* FT_Select_Charmap
* FT_Set_Charmap
* FT_Get_Charmap_Index
*
* FT_Get_FSType_Flags
* FT_Get_SubGlyph_Info
*
* FT_Face_Internal
* FT_Size_Internal
* FT_Slot_Internal
*
* FT_FACE_FLAG_XXX
* FT_STYLE_FLAG_XXX
* FT_OPEN_XXX
* FT_LOAD_XXX
* FT_LOAD_TARGET_XXX
* FT_SUBGLYPH_FLAG_XXX
* FT_FSTYPE_XXX
*
* FT_HAS_FAST_GLYPHS
*
*/
/**************************************************************************
*
* @struct:
* FT_Glyph_Metrics
*
* @description:
* A structure to model the metrics of a single glyph. The values are
* expressed in 26.6 fractional pixel format; if the flag
* @FT_LOAD_NO_SCALE has been used while loading the glyph, values are
* expressed in font units instead.
*
* @fields:
* width ::
* The glyph's width.
*
* height ::
* The glyph's height.
*
* horiBearingX ::
* Left side bearing for horizontal layout.
*
* horiBearingY ::
* Top side bearing for horizontal layout.
*
* horiAdvance ::
* Advance width for horizontal layout.
*
* vertBearingX ::
* Left side bearing for vertical layout.
*
* vertBearingY ::
* Top side bearing for vertical layout. Larger positive values mean
* further below the vertical glyph origin.
*
* vertAdvance ::
* Advance height for vertical layout. Positive values mean the glyph
* has a positive advance downward.
*
* @note:
* If not disabled with @FT_LOAD_NO_HINTING, the values represent
* dimensions of the hinted glyph (in case hinting is applicable).
*
* Stroking a glyph with an outside border does not increase
* `horiAdvance` or `vertAdvance`; you have to manually adjust these
* values to account for the added width and height.
*
* FreeType doesn't use the 'VORG' table data for CFF fonts because it
* doesn't have an interface to quickly retrieve the glyph height. The
* y~coordinate of the vertical origin can be simply computed as
* `vertBearingY + height` after loading a glyph.
*/
typedef struct FT_Glyph_Metrics_
{
FT_Pos width;
FT_Pos height;
FT_Pos horiBearingX;
FT_Pos horiBearingY;
FT_Pos horiAdvance;
FT_Pos vertBearingX;
FT_Pos vertBearingY;
FT_Pos vertAdvance;
} FT_Glyph_Metrics;
/**************************************************************************
*
* @struct:
* FT_Bitmap_Size
*
* @description:
* This structure models the metrics of a bitmap strike (i.e., a set of
* glyphs for a given point size and resolution) in a bitmap font. It is
* used for the `available_sizes` field of @FT_Face.
*
* @fields:
* height ::
* The vertical distance, in pixels, between two consecutive baselines.
* It is always positive.
*
* width ::
* The average width, in pixels, of all glyphs in the strike.
*
* size ::
* The nominal size of the strike in 26.6 fractional points. This
* field is not very useful.
*
* x_ppem ::
* The horizontal ppem (nominal width) in 26.6 fractional pixels.
*
* y_ppem ::
* The vertical ppem (nominal height) in 26.6 fractional pixels.
*
* @note:
* Windows FNT:
* The nominal size given in a FNT font is not reliable. If the driver
* finds it incorrect, it sets `size` to some calculated values, and
* `x_ppem` and `y_ppem` to the pixel width and height given in the
* font, respectively.
*
* TrueType embedded bitmaps:
* `size`, `width`, and `height` values are not contained in the bitmap
* strike itself. They are computed from the global font parameters.
*/
typedef struct FT_Bitmap_Size_
{
FT_Short height;
FT_Short width;
FT_Pos size;
FT_Pos x_ppem;
FT_Pos y_ppem;
} FT_Bitmap_Size;
/*************************************************************************/
/*************************************************************************/
/* */
/* O B J E C T C L A S S E S */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* FT_Library
*
* @description:
* A handle to a FreeType library instance. Each 'library' is completely
* independent from the others; it is the 'root' of a set of objects like
* fonts, faces, sizes, etc.
*
* It also embeds a memory manager (see @FT_Memory), as well as a
* scan-line converter object (see @FT_Raster).
*
* [Since 2.5.6] In multi-threaded applications it is easiest to use one
* `FT_Library` object per thread. In case this is too cumbersome, a
* single `FT_Library` object across threads is possible also, as long as
* a mutex lock is used around @FT_New_Face and @FT_Done_Face.
*
* @note:
* Library objects are normally created by @FT_Init_FreeType, and
* destroyed with @FT_Done_FreeType. If you need reference-counting
* (cf. @FT_Reference_Library), use @FT_New_Library and @FT_Done_Library.
*/
typedef struct FT_LibraryRec_ *FT_Library;
/**************************************************************************
*
* @section:
* module_management
*
*/
/**************************************************************************
*
* @type:
* FT_Module
*
* @description:
* A handle to a given FreeType module object. A module can be a font
* driver, a renderer, or anything else that provides services to the
* former.
*/
typedef struct FT_ModuleRec_* FT_Module;
/**************************************************************************
*
* @type:
* FT_Driver
*
* @description:
* A handle to a given FreeType font driver object. A font driver is a
* module capable of creating faces from font files.
*/
typedef struct FT_DriverRec_* FT_Driver;
/**************************************************************************
*
* @type:
* FT_Renderer
*
* @description:
* A handle to a given FreeType renderer. A renderer is a module in
* charge of converting a glyph's outline image to a bitmap. It supports
* a single glyph image format, and one or more target surface depths.
*/
typedef struct FT_RendererRec_* FT_Renderer;
/**************************************************************************
*
* @section:
* base_interface
*
*/
/**************************************************************************
*
* @type:
* FT_Face
*
* @description:
* A handle to a typographic face object. A face object models a given
* typeface, in a given style.
*
* @note:
* A face object also owns a single @FT_GlyphSlot object, as well as one
* or more @FT_Size objects.
*
* Use @FT_New_Face or @FT_Open_Face to create a new face object from a
* given filepath or a custom input stream.
*
* Use @FT_Done_Face to destroy it (along with its slot and sizes).
*
* An `FT_Face` object can only be safely used from one thread at a time.
* Similarly, creation and destruction of `FT_Face` with the same
* @FT_Library object can only be done from one thread at a time. On the
* other hand, functions like @FT_Load_Glyph and its siblings are
* thread-safe and do not need the lock to be held as long as the same
* `FT_Face` object is not used from multiple threads at the same time.
*
* @also:
* See @FT_FaceRec for the publicly accessible fields of a given face
* object.
*/
typedef struct FT_FaceRec_* FT_Face;
/**************************************************************************
*
* @type:
* FT_Size
*
* @description:
* A handle to an object that models a face scaled to a given character
* size.
*
* @note:
* An @FT_Face has one _active_ `FT_Size` object that is used by
* functions like @FT_Load_Glyph to determine the scaling transformation
* that in turn is used to load and hint glyphs and metrics.
*
* A newly created `FT_Size` object contains only meaningless zero values.
* You must use @FT_Set_Char_Size, @FT_Set_Pixel_Sizes, @FT_Request_Size
* or even @FT_Select_Size to change the content (i.e., the scaling
* values) of the active `FT_Size`. Otherwise, the scaling and hinting
* will not be performed.
*
* You can use @FT_New_Size to create additional size objects for a given
* @FT_Face, but they won't be used by other functions until you activate
* it through @FT_Activate_Size. Only one size can be activated at any
* given time per face.
*
* @also:
* See @FT_SizeRec for the publicly accessible fields of a given size
* object.
*/
typedef struct FT_SizeRec_* FT_Size;
/**************************************************************************
*
* @type:
* FT_GlyphSlot
*
* @description:
* A handle to a given 'glyph slot'. A slot is a container that can hold
* any of the glyphs contained in its parent face.
*
* In other words, each time you call @FT_Load_Glyph or @FT_Load_Char,
* the slot's content is erased by the new glyph data, i.e., the glyph's
* metrics, its image (bitmap or outline), and other control information.
*
* @also:
* See @FT_GlyphSlotRec for the publicly accessible glyph fields.
*/
typedef struct FT_GlyphSlotRec_* FT_GlyphSlot;
/**************************************************************************
*
* @type:
* FT_CharMap
*
* @description:
* A handle to a character map (usually abbreviated to 'charmap'). A
* charmap is used to translate character codes in a given encoding into
* glyph indexes for its parent's face. Some font formats may provide
* several charmaps per font.
*
* Each face object owns zero or more charmaps, but only one of them can
* be 'active', providing the data used by @FT_Get_Char_Index or
* @FT_Load_Char.
*
* The list of available charmaps in a face is available through the
* `face->num_charmaps` and `face->charmaps` fields of @FT_FaceRec.
*
* The currently active charmap is available as `face->charmap`. You
* should call @FT_Set_Charmap to change it.
*
* @note:
* When a new face is created (either through @FT_New_Face or
* @FT_Open_Face), the library looks for a Unicode charmap within the
* list and automatically activates it. If there is no Unicode charmap,
* FreeType doesn't set an 'active' charmap.
*
* @also:
* See @FT_CharMapRec for the publicly accessible fields of a given
* character map.
*/
typedef struct FT_CharMapRec_* FT_CharMap;
/**************************************************************************
*
* @macro:
* FT_ENC_TAG
*
* @description:
* This macro converts four-letter tags into an unsigned long. It is
* used to define 'encoding' identifiers (see @FT_Encoding).
*
* @note:
* Since many 16-bit compilers don't like 32-bit enumerations, you should
* redefine this macro in case of problems to something like this:
*
* ```
* #define FT_ENC_TAG( value, a, b, c, d ) value
* ```
*
* to get a simple enumeration without assigning special numbers.
*/
#ifndef FT_ENC_TAG
#define FT_ENC_TAG( value, a, b, c, d ) \
value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32, a ) << 24 ) | \
( FT_STATIC_BYTE_CAST( FT_UInt32, b ) << 16 ) | \
( FT_STATIC_BYTE_CAST( FT_UInt32, c ) << 8 ) | \
FT_STATIC_BYTE_CAST( FT_UInt32, d ) )
#endif /* FT_ENC_TAG */
/**************************************************************************
*
* @enum:
* FT_Encoding
*
* @description:
* An enumeration to specify character sets supported by charmaps. Used
* in the @FT_Select_Charmap API function.
*
* @note:
* Despite the name, this enumeration lists specific character
* repertories (i.e., charsets), and not text encoding methods (e.g.,
* UTF-8, UTF-16, etc.).
*
* Other encodings might be defined in the future.
*
* @values:
* FT_ENCODING_NONE ::
* The encoding value~0 is reserved for all formats except BDF, PCF,
* and Windows FNT; see below for more information.
*
* FT_ENCODING_UNICODE ::
* The Unicode character set. This value covers all versions of the
* Unicode repertoire, including ASCII and Latin-1. Most fonts include
* a Unicode charmap, but not all of them.
*
* For example, if you want to access Unicode value U+1F028 (and the
* font contains it), use value 0x1F028 as the input value for
* @FT_Get_Char_Index.
*
* FT_ENCODING_MS_SYMBOL ::
* Microsoft Symbol encoding, used to encode mathematical symbols and
* wingdings. For more information, see
* 'https://www.microsoft.com/typography/otspec/recom.htm#non-standard-symbol-fonts',
* 'http://www.kostis.net/charsets/symbol.htm', and
* 'http://www.kostis.net/charsets/wingding.htm'.
*
* This encoding uses character codes from the PUA (Private Unicode
* Area) in the range U+F020-U+F0FF.
*
* FT_ENCODING_SJIS ::
* Shift JIS encoding for Japanese. More info at
* 'https://en.wikipedia.org/wiki/Shift_JIS'. See note on multi-byte
* encodings below.
*
* FT_ENCODING_PRC ::
* Corresponds to encoding systems mainly for Simplified Chinese as
* used in People's Republic of China (PRC). The encoding layout is
* based on GB~2312 and its supersets GBK and GB~18030.
*
* FT_ENCODING_BIG5 ::
* Corresponds to an encoding system for Traditional Chinese as used in
* Taiwan and Hong Kong.
*
* FT_ENCODING_WANSUNG ::
* Corresponds to the Korean encoding system known as Extended Wansung
* (MS Windows code page 949). For more information see
* 'https://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/WindowsBestFit/bestfit949.txt'.
*
* FT_ENCODING_JOHAB ::
* The Korean standard character set (KS~C 5601-1992), which
* corresponds to MS Windows code page 1361. This character set
* includes all possible Hangul character combinations.
*
* FT_ENCODING_ADOBE_LATIN_1 ::
* Corresponds to a Latin-1 encoding as defined in a Type~1 PostScript
* font. It is limited to 256 character codes.
*
* FT_ENCODING_ADOBE_STANDARD ::
* Adobe Standard encoding, as found in Type~1, CFF, and OpenType/CFF
* fonts. It is limited to 256 character codes.
*
* FT_ENCODING_ADOBE_EXPERT ::
* Adobe Expert encoding, as found in Type~1, CFF, and OpenType/CFF
* fonts. It is limited to 256 character codes.
*
* FT_ENCODING_ADOBE_CUSTOM ::
* Corresponds to a custom encoding, as found in Type~1, CFF, and
* OpenType/CFF fonts. It is limited to 256 character codes.
*
* FT_ENCODING_APPLE_ROMAN ::
* Apple roman encoding. Many TrueType and OpenType fonts contain a
* charmap for this 8-bit encoding, since older versions of Mac OS are
* able to use it.
*
* FT_ENCODING_OLD_LATIN_2 ::
* This value is deprecated and was neither used nor reported by
* FreeType. Don't use or test for it.
*
* FT_ENCODING_MS_SJIS ::
* Same as FT_ENCODING_SJIS. Deprecated.
*
* FT_ENCODING_MS_GB2312 ::
* Same as FT_ENCODING_PRC. Deprecated.
*
* FT_ENCODING_MS_BIG5 ::
* Same as FT_ENCODING_BIG5. Deprecated.
*
* FT_ENCODING_MS_WANSUNG ::
* Same as FT_ENCODING_WANSUNG. Deprecated.
*
* FT_ENCODING_MS_JOHAB ::
* Same as FT_ENCODING_JOHAB. Deprecated.
*
* @note:
* When loading a font, FreeType makes a Unicode charmap active if
* possible (either if the font provides such a charmap, or if FreeType
* can synthesize one from PostScript glyph name dictionaries; in either
* case, the charmap is tagged with `FT_ENCODING_UNICODE`). If such a
* charmap is synthesized, it is placed at the first position of the
* charmap array.
*
* All other encodings are considered legacy and tagged only if
* explicitly defined in the font file. Otherwise, `FT_ENCODING_NONE` is
* used.
*
* `FT_ENCODING_NONE` is set by the BDF and PCF drivers if the charmap is
* neither Unicode nor ISO-8859-1 (otherwise it is set to
* `FT_ENCODING_UNICODE`). Use @FT_Get_BDF_Charset_ID to find out which
* encoding is really present. If, for example, the `cs_registry` field
* is 'KOI8' and the `cs_encoding` field is 'R', the font is encoded in
* KOI8-R.
*
* `FT_ENCODING_NONE` is always set (with a single exception) by the
* winfonts driver. Use @FT_Get_WinFNT_Header and examine the `charset`
* field of the @FT_WinFNT_HeaderRec structure to find out which encoding
* is really present. For example, @FT_WinFNT_ID_CP1251 (204) means
* Windows code page 1251 (for Russian).
*
* `FT_ENCODING_NONE` is set if `platform_id` is @TT_PLATFORM_MACINTOSH
* and `encoding_id` is not `TT_MAC_ID_ROMAN` (otherwise it is set to
* `FT_ENCODING_APPLE_ROMAN`).
*
* If `platform_id` is @TT_PLATFORM_MACINTOSH, use the function
* @FT_Get_CMap_Language_ID to query the Mac language ID that may be
* needed to be able to distinguish Apple encoding variants. See
*
* https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/Readme.txt
*
* to get an idea how to do that. Basically, if the language ID is~0,
* don't use it, otherwise subtract 1 from the language ID. Then examine
* `encoding_id`. If, for example, `encoding_id` is `TT_MAC_ID_ROMAN`
* and the language ID (minus~1) is `TT_MAC_LANGID_GREEK`, it is the
* Greek encoding, not Roman. `TT_MAC_ID_ARABIC` with
* `TT_MAC_LANGID_FARSI` means the Farsi variant the Arabic encoding.
*/
typedef enum FT_Encoding_
{
FT_ENC_TAG( FT_ENCODING_NONE, 0, 0, 0, 0 ),
FT_ENC_TAG( FT_ENCODING_MS_SYMBOL, 's', 'y', 'm', 'b' ),
FT_ENC_TAG( FT_ENCODING_UNICODE, 'u', 'n', 'i', 'c' ),
FT_ENC_TAG( FT_ENCODING_SJIS, 's', 'j', 'i', 's' ),
FT_ENC_TAG( FT_ENCODING_PRC, 'g', 'b', ' ', ' ' ),
FT_ENC_TAG( FT_ENCODING_BIG5, 'b', 'i', 'g', '5' ),
FT_ENC_TAG( FT_ENCODING_WANSUNG, 'w', 'a', 'n', 's' ),
FT_ENC_TAG( FT_ENCODING_JOHAB, 'j', 'o', 'h', 'a' ),
/* for backward compatibility */
FT_ENCODING_GB2312 = FT_ENCODING_PRC,
FT_ENCODING_MS_SJIS = FT_ENCODING_SJIS,
FT_ENCODING_MS_GB2312 = FT_ENCODING_PRC,
FT_ENCODING_MS_BIG5 = FT_ENCODING_BIG5,
FT_ENCODING_MS_WANSUNG = FT_ENCODING_WANSUNG,
FT_ENCODING_MS_JOHAB = FT_ENCODING_JOHAB,
FT_ENC_TAG( FT_ENCODING_ADOBE_STANDARD, 'A', 'D', 'O', 'B' ),
FT_ENC_TAG( FT_ENCODING_ADOBE_EXPERT, 'A', 'D', 'B', 'E' ),
FT_ENC_TAG( FT_ENCODING_ADOBE_CUSTOM, 'A', 'D', 'B', 'C' ),
FT_ENC_TAG( FT_ENCODING_ADOBE_LATIN_1, 'l', 'a', 't', '1' ),
FT_ENC_TAG( FT_ENCODING_OLD_LATIN_2, 'l', 'a', 't', '2' ),
FT_ENC_TAG( FT_ENCODING_APPLE_ROMAN, 'a', 'r', 'm', 'n' )
} FT_Encoding;
/* these constants are deprecated; use the corresponding `FT_Encoding` */
/* values instead */
#define ft_encoding_none FT_ENCODING_NONE
#define ft_encoding_unicode FT_ENCODING_UNICODE
#define ft_encoding_symbol FT_ENCODING_MS_SYMBOL
#define ft_encoding_latin_1 FT_ENCODING_ADOBE_LATIN_1
#define ft_encoding_latin_2 FT_ENCODING_OLD_LATIN_2
#define ft_encoding_sjis FT_ENCODING_SJIS
#define ft_encoding_gb2312 FT_ENCODING_PRC
#define ft_encoding_big5 FT_ENCODING_BIG5
#define ft_encoding_wansung FT_ENCODING_WANSUNG
#define ft_encoding_johab FT_ENCODING_JOHAB
#define ft_encoding_adobe_standard FT_ENCODING_ADOBE_STANDARD
#define ft_encoding_adobe_expert FT_ENCODING_ADOBE_EXPERT
#define ft_encoding_adobe_custom FT_ENCODING_ADOBE_CUSTOM
#define ft_encoding_apple_roman FT_ENCODING_APPLE_ROMAN
/**************************************************************************
*
* @struct:
* FT_CharMapRec
*
* @description:
* The base charmap structure.
*
* @fields:
* face ::
* A handle to the parent face object.
*
* encoding ::
* An @FT_Encoding tag identifying the charmap. Use this with
* @FT_Select_Charmap.
*
* platform_id ::
* An ID number describing the platform for the following encoding ID.
* This comes directly from the TrueType specification and gets
* emulated for other formats.
*
* encoding_id ::
* A platform-specific encoding number. This also comes from the
* TrueType specification and gets emulated similarly.
*/
typedef struct FT_CharMapRec_
{
FT_Face face;
FT_Encoding encoding;
FT_UShort platform_id;
FT_UShort encoding_id;
} FT_CharMapRec;
/*************************************************************************/
/*************************************************************************/
/* */
/* B A S E O B J E C T C L A S S E S */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* FT_Face_Internal
*
* @description:
* An opaque handle to an `FT_Face_InternalRec` structure that models the
* private data of a given @FT_Face object.
*
* This structure might change between releases of FreeType~2 and is not
* generally available to client applications.
*/
typedef struct FT_Face_InternalRec_* FT_Face_Internal;
/**************************************************************************
*
* @struct:
* FT_FaceRec
*
* @description:
* FreeType root face class structure. A face object models a typeface
* in a font file.
*
* @fields:
* num_faces ::
* The number of faces in the font file. Some font formats can have
* multiple faces in a single font file.
*
* face_index ::
* This field holds two different values. Bits 0-15 are the index of
* the face in the font file (starting with value~0). They are set
* to~0 if there is only one face in the font file.
*
* [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation
* fonts only, holding the named instance index for the current face
* index (starting with value~1; value~0 indicates font access without
* a named instance). For non-variation fonts, bits 16-30 are ignored.
* If we have the third named instance of face~4, say, `face_index` is
* set to 0x00030004.
*
* Bit 31 is always zero (this is, `face_index` is always a positive
* value).
*
* [Since 2.9] Changing the design coordinates with
* @FT_Set_Var_Design_Coordinates or @FT_Set_Var_Blend_Coordinates does
* not influence the named instance index value (only
* @FT_Set_Named_Instance does that).
*
* face_flags ::
* A set of bit flags that give important information about the face;
* see @FT_FACE_FLAG_XXX for the details.
*
* style_flags ::
* The lower 16~bits contain a set of bit flags indicating the style of
* the face; see @FT_STYLE_FLAG_XXX for the details.
*
* [Since 2.6.1] Bits 16-30 hold the number of named instances
* available for the current face if we have a GX or OpenType variation
* (sub)font. Bit 31 is always zero (this is, `style_flags` is always
* a positive value). Note that a variation font has always at least
* one named instance, namely the default instance.
*
* num_glyphs ::
* The number of glyphs in the face. If the face is scalable and has
* sbits (see `num_fixed_sizes`), it is set to the number of outline
* glyphs.
*
* For CID-keyed fonts (not in an SFNT wrapper) this value gives the
* highest CID used in the font.
*
* family_name ::
* The face's family name. This is an ASCII string, usually in
* English, that describes the typeface's family (like 'Times New
* Roman', 'Bodoni', 'Garamond', etc). This is a least common
* denominator used to list fonts. Some formats (TrueType & OpenType)
* provide localized and Unicode versions of this string. Applications
* should use the format-specific interface to access them. Can be
* `NULL` (e.g., in fonts embedded in a PDF file).
*
* In case the font doesn't provide a specific family name entry,
* FreeType tries to synthesize one, deriving it from other name
* entries.
*
* style_name ::
* The face's style name. This is an ASCII string, usually in English,
* that describes the typeface's style (like 'Italic', 'Bold',
* 'Condensed', etc). Not all font formats provide a style name, so
* this field is optional, and can be set to `NULL`. As for
* `family_name`, some formats provide localized and Unicode versions
* of this string. Applications should use the format-specific
* interface to access them.
*
* num_fixed_sizes ::
* The number of bitmap strikes in the face. Even if the face is
* scalable, there might still be bitmap strikes, which are called
* 'sbits' in that case.
*
* available_sizes ::
* An array of @FT_Bitmap_Size for all bitmap strikes in the face. It
* is set to `NULL` if there is no bitmap strike.
*
* Note that FreeType tries to sanitize the strike data since they are
* sometimes sloppy or incorrect, but this can easily fail.
*
* num_charmaps ::
* The number of charmaps in the face.
*
* charmaps ::
* An array of the charmaps of the face.
*
* generic ::
* A field reserved for client uses. See the @FT_Generic type
* description.
*
* bbox ::
* The font bounding box. Coordinates are expressed in font units (see
* `units_per_EM`). The box is large enough to contain any glyph from
* the font. Thus, `bbox.yMax` can be seen as the 'maximum ascender',
* and `bbox.yMin` as the 'minimum descender'. Only relevant for
* scalable formats.
*
* Note that the bounding box might be off by (at least) one pixel for
* hinted fonts. See @FT_Size_Metrics for further discussion.
*
* Note that the bounding box does not vary in OpenType variable fonts
* and should only be used in relation to the default instance.
*
* units_per_EM ::
* The number of font units per EM square for this face. This is
* typically 2048 for TrueType fonts, and 1000 for Type~1 fonts. Only
* relevant for scalable formats.
*
* ascender ::
* The typographic ascender of the face, expressed in font units. For
* font formats not having this information, it is set to `bbox.yMax`.
* Only relevant for scalable formats.
*
* descender ::
* The typographic descender of the face, expressed in font units. For
* font formats not having this information, it is set to `bbox.yMin`.
* Note that this field is negative for values below the baseline.
* Only relevant for scalable formats.
*
* height ::
* This value is the vertical distance between two consecutive
* baselines, expressed in font units. It is always positive. Only
* relevant for scalable formats.
*
* If you want the global glyph height, use `ascender - descender`.
*
* max_advance_width ::
* The maximum advance width, in font units, for all glyphs in this
* face. This can be used to make word wrapping computations faster.
* Only relevant for scalable formats.
*
* max_advance_height ::
* The maximum advance height, in font units, for all glyphs in this
* face. This is only relevant for vertical layouts, and is set to
* `height` for fonts that do not provide vertical metrics. Only
* relevant for scalable formats.
*
* underline_position ::
* The position, in font units, of the underline line for this face.
* It is the center of the underlining stem. Only relevant for
* scalable formats.
*
* underline_thickness ::
* The thickness, in font units, of the underline for this face. Only
* relevant for scalable formats.
*
* glyph ::
* The face's associated glyph slot(s).
*
* size ::
* The current active size for this face.
*
* charmap ::
* The current active charmap for this face.
*
* @note:
* Fields may be changed after a call to @FT_Attach_File or
* @FT_Attach_Stream.
*
* For an OpenType variation font, the values of the following fields can
* change after a call to @FT_Set_Var_Design_Coordinates (and friends) if
* the font contains an 'MVAR' table: `ascender`, `descender`, `height`,
* `underline_position`, and `underline_thickness`.
*
* Especially for TrueType fonts see also the documentation for
* @FT_Size_Metrics.
*/
typedef struct FT_FaceRec_
{
FT_Long num_faces;
FT_Long face_index;
FT_Long face_flags;
FT_Long style_flags;
FT_Long num_glyphs;
FT_String* family_name;
FT_String* style_name;
FT_Int num_fixed_sizes;
FT_Bitmap_Size* available_sizes;
FT_Int num_charmaps;
FT_CharMap* charmaps;
FT_Generic generic;
/*# The following member variables (down to `underline_thickness`) */
/*# are only relevant to scalable outlines; cf. @FT_Bitmap_Size */
/*# for bitmap fonts. */
FT_BBox bbox;
FT_UShort units_per_EM;
FT_Short ascender;
FT_Short descender;
FT_Short height;
FT_Short max_advance_width;
FT_Short max_advance_height;
FT_Short underline_position;
FT_Short underline_thickness;
FT_GlyphSlot glyph;
FT_Size size;
FT_CharMap charmap;
/*@private begin */
FT_Driver driver;
FT_Memory memory;
FT_Stream stream;
FT_ListRec sizes_list;
FT_Generic autohint; /* face-specific auto-hinter data */
void* extensions; /* unused */
FT_Face_Internal internal;
/*@private end */
} FT_FaceRec;
/**************************************************************************
*
* @enum:
* FT_FACE_FLAG_XXX
*
* @description:
* A list of bit flags used in the `face_flags` field of the @FT_FaceRec
* structure. They inform client applications of properties of the
* corresponding face.
*
* @values:
* FT_FACE_FLAG_SCALABLE ::
* The face contains outline glyphs. Note that a face can contain
* bitmap strikes also, i.e., a face can have both this flag and
* @FT_FACE_FLAG_FIXED_SIZES set.
*
* FT_FACE_FLAG_FIXED_SIZES ::
* The face contains bitmap strikes. See also the `num_fixed_sizes`
* and `available_sizes` fields of @FT_FaceRec.
*
* FT_FACE_FLAG_FIXED_WIDTH ::
* The face contains fixed-width characters (like Courier, Lucida,
* MonoType, etc.).
*
* FT_FACE_FLAG_SFNT ::
* The face uses the SFNT storage scheme. For now, this means TrueType
* and OpenType.
*
* FT_FACE_FLAG_HORIZONTAL ::
* The face contains horizontal glyph metrics. This should be set for
* all common formats.
*
* FT_FACE_FLAG_VERTICAL ::
* The face contains vertical glyph metrics. This is only available in
* some formats, not all of them.
*
* FT_FACE_FLAG_KERNING ::
* The face contains kerning information. If set, the kerning distance
* can be retrieved using the function @FT_Get_Kerning. Otherwise the
* function always return the vector (0,0). Note that FreeType doesn't
* handle kerning data from the SFNT 'GPOS' table (as present in many
* OpenType fonts).
*
* FT_FACE_FLAG_FAST_GLYPHS ::
* THIS FLAG IS DEPRECATED. DO NOT USE OR TEST IT.
*
* FT_FACE_FLAG_MULTIPLE_MASTERS ::
* The face contains multiple masters and is capable of interpolating
* between them. Supported formats are Adobe MM, TrueType GX, and
* OpenType variation fonts.
*
* See section @multiple_masters for API details.
*
* FT_FACE_FLAG_GLYPH_NAMES ::
* The face contains glyph names, which can be retrieved using
* @FT_Get_Glyph_Name. Note that some TrueType fonts contain broken
* glyph name tables. Use the function @FT_Has_PS_Glyph_Names when
* needed.
*
* FT_FACE_FLAG_EXTERNAL_STREAM ::
* Used internally by FreeType to indicate that a face's stream was
* provided by the client application and should not be destroyed when
* @FT_Done_Face is called. Don't read or test this flag.
*
* FT_FACE_FLAG_HINTER ::
* The font driver has a hinting machine of its own. For example, with
* TrueType fonts, it makes sense to use data from the SFNT 'gasp'
* table only if the native TrueType hinting engine (with the bytecode
* interpreter) is available and active.
*
* FT_FACE_FLAG_CID_KEYED ::
* The face is CID-keyed. In that case, the face is not accessed by
* glyph indices but by CID values. For subsetted CID-keyed fonts this
* has the consequence that not all index values are a valid argument
* to @FT_Load_Glyph. Only the CID values for which corresponding
* glyphs in the subsetted font exist make `FT_Load_Glyph` return
* successfully; in all other cases you get an
* `FT_Err_Invalid_Argument` error.
*
* Note that CID-keyed fonts that are in an SFNT wrapper (this is, all
* OpenType/CFF fonts) don't have this flag set since the glyphs are
* accessed in the normal way (using contiguous indices); the
* 'CID-ness' isn't visible to the application.
*
* FT_FACE_FLAG_TRICKY ::
* The face is 'tricky', this is, it always needs the font format's
* native hinting engine to get a reasonable result. A typical example
* is the old Chinese font `mingli.ttf` (but not `mingliu.ttc`) that
* uses TrueType bytecode instructions to move and scale all of its
* subglyphs.
*
* It is not possible to auto-hint such fonts using
* @FT_LOAD_FORCE_AUTOHINT; it will also ignore @FT_LOAD_NO_HINTING.
* You have to set both @FT_LOAD_NO_HINTING and @FT_LOAD_NO_AUTOHINT to
* really disable hinting; however, you probably never want this except
* for demonstration purposes.
*
* Currently, there are about a dozen TrueType fonts in the list of
* tricky fonts; they are hard-coded in file `ttobjs.c`.
*
* FT_FACE_FLAG_COLOR ::
* [Since 2.5.1] The face has color glyph tables. See @FT_LOAD_COLOR
* for more information.
*
* FT_FACE_FLAG_VARIATION ::
* [Since 2.9] Set if the current face (or named instance) has been
* altered with @FT_Set_MM_Design_Coordinates,
* @FT_Set_Var_Design_Coordinates, or @FT_Set_Var_Blend_Coordinates.
* This flag is unset by a call to @FT_Set_Named_Instance.
*
* FT_FACE_FLAG_SVG ::
* [Since 2.12] The face has an 'SVG~' OpenType table.
*
* FT_FACE_FLAG_SBIX ::
* [Since 2.12] The face has an 'sbix' OpenType table *and* outlines.
* For such fonts, @FT_FACE_FLAG_SCALABLE is not set by default to
* retain backward compatibility.
*
* FT_FACE_FLAG_SBIX_OVERLAY ::
* [Since 2.12] The face has an 'sbix' OpenType table where outlines
* should be drawn on top of bitmap strikes.
*
*/
#define FT_FACE_FLAG_SCALABLE ( 1L << 0 )
#define FT_FACE_FLAG_FIXED_SIZES ( 1L << 1 )
#define FT_FACE_FLAG_FIXED_WIDTH ( 1L << 2 )
#define FT_FACE_FLAG_SFNT ( 1L << 3 )
#define FT_FACE_FLAG_HORIZONTAL ( 1L << 4 )
#define FT_FACE_FLAG_VERTICAL ( 1L << 5 )
#define FT_FACE_FLAG_KERNING ( 1L << 6 )
#define FT_FACE_FLAG_FAST_GLYPHS ( 1L << 7 )
#define FT_FACE_FLAG_MULTIPLE_MASTERS ( 1L << 8 )
#define FT_FACE_FLAG_GLYPH_NAMES ( 1L << 9 )
#define FT_FACE_FLAG_EXTERNAL_STREAM ( 1L << 10 )
#define FT_FACE_FLAG_HINTER ( 1L << 11 )
#define FT_FACE_FLAG_CID_KEYED ( 1L << 12 )
#define FT_FACE_FLAG_TRICKY ( 1L << 13 )
#define FT_FACE_FLAG_COLOR ( 1L << 14 )
#define FT_FACE_FLAG_VARIATION ( 1L << 15 )
#define FT_FACE_FLAG_SVG ( 1L << 16 )
#define FT_FACE_FLAG_SBIX ( 1L << 17 )
#define FT_FACE_FLAG_SBIX_OVERLAY ( 1L << 18 )
/**************************************************************************
*
* @macro:
* FT_HAS_HORIZONTAL
*
* @description:
* A macro that returns true whenever a face object contains horizontal
* metrics (this is true for all font formats though).
*
* @also:
* @FT_HAS_VERTICAL can be used to check for vertical metrics.
*
*/
#define FT_HAS_HORIZONTAL( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_HORIZONTAL ) )
/**************************************************************************
*
* @macro:
* FT_HAS_VERTICAL
*
* @description:
* A macro that returns true whenever a face object contains real
* vertical metrics (and not only synthesized ones).
*
*/
#define FT_HAS_VERTICAL( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_VERTICAL ) )
/**************************************************************************
*
* @macro:
* FT_HAS_KERNING
*
* @description:
* A macro that returns true whenever a face object contains kerning data
* that can be accessed with @FT_Get_Kerning.
*
*/
#define FT_HAS_KERNING( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_KERNING ) )
/**************************************************************************
*
* @macro:
* FT_IS_SCALABLE
*
* @description:
* A macro that returns true whenever a face object contains a scalable
* font face (true for TrueType, Type~1, Type~42, CID, OpenType/CFF, and
* PFR font formats).
*
*/
#define FT_IS_SCALABLE( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_SCALABLE ) )
/**************************************************************************
*
* @macro:
* FT_IS_SFNT
*
* @description:
* A macro that returns true whenever a face object contains a font whose
* format is based on the SFNT storage scheme. This usually means:
* TrueType fonts, OpenType fonts, as well as SFNT-based embedded bitmap
* fonts.
*
* If this macro is true, all functions defined in @FT_SFNT_NAMES_H and
* @FT_TRUETYPE_TABLES_H are available.
*
*/
#define FT_IS_SFNT( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_SFNT ) )
/**************************************************************************
*
* @macro:
* FT_IS_FIXED_WIDTH
*
* @description:
* A macro that returns true whenever a face object contains a font face
* that contains fixed-width (or 'monospace', 'fixed-pitch', etc.)
* glyphs.
*
*/
#define FT_IS_FIXED_WIDTH( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_WIDTH ) )
/**************************************************************************
*
* @macro:
* FT_HAS_FIXED_SIZES
*
* @description:
* A macro that returns true whenever a face object contains some
* embedded bitmaps. See the `available_sizes` field of the @FT_FaceRec
* structure.
*
*/
#define FT_HAS_FIXED_SIZES( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_FIXED_SIZES ) )
/**************************************************************************
*
* @macro:
* FT_HAS_FAST_GLYPHS
*
* @description:
* Deprecated.
*
*/
#define FT_HAS_FAST_GLYPHS( face ) 0
/**************************************************************************
*
* @macro:
* FT_HAS_GLYPH_NAMES
*
* @description:
* A macro that returns true whenever a face object contains some glyph
* names that can be accessed through @FT_Get_Glyph_Name.
*
*/
#define FT_HAS_GLYPH_NAMES( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_GLYPH_NAMES ) )
/**************************************************************************
*
* @macro:
* FT_HAS_MULTIPLE_MASTERS
*
* @description:
* A macro that returns true whenever a face object contains some
* multiple masters. The functions provided by @FT_MULTIPLE_MASTERS_H
* are then available to choose the exact design you want.
*
*/
#define FT_HAS_MULTIPLE_MASTERS( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_MULTIPLE_MASTERS ) )
/**************************************************************************
*
* @macro:
* FT_IS_NAMED_INSTANCE
*
* @description:
* A macro that returns true whenever a face object is a named instance
* of a GX or OpenType variation font.
*
* [Since 2.9] Changing the design coordinates with
* @FT_Set_Var_Design_Coordinates or @FT_Set_Var_Blend_Coordinates does
* not influence the return value of this macro (only
* @FT_Set_Named_Instance does that).
*
* @since:
* 2.7
*
*/
#define FT_IS_NAMED_INSTANCE( face ) \
( !!( (face)->face_index & 0x7FFF0000L ) )
/**************************************************************************
*
* @macro:
* FT_IS_VARIATION
*
* @description:
* A macro that returns true whenever a face object has been altered by
* @FT_Set_MM_Design_Coordinates, @FT_Set_Var_Design_Coordinates, or
* @FT_Set_Var_Blend_Coordinates.
*
* @since:
* 2.9
*
*/
#define FT_IS_VARIATION( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_VARIATION ) )
/**************************************************************************
*
* @macro:
* FT_IS_CID_KEYED
*
* @description:
* A macro that returns true whenever a face object contains a CID-keyed
* font. See the discussion of @FT_FACE_FLAG_CID_KEYED for more details.
*
* If this macro is true, all functions defined in @FT_CID_H are
* available.
*
*/
#define FT_IS_CID_KEYED( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_CID_KEYED ) )
/**************************************************************************
*
* @macro:
* FT_IS_TRICKY
*
* @description:
* A macro that returns true whenever a face represents a 'tricky' font.
* See the discussion of @FT_FACE_FLAG_TRICKY for more details.
*
*/
#define FT_IS_TRICKY( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_TRICKY ) )
/**************************************************************************
*
* @macro:
* FT_HAS_COLOR
*
* @description:
* A macro that returns true whenever a face object contains tables for
* color glyphs.
*
* @since:
* 2.5.1
*
*/
#define FT_HAS_COLOR( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_COLOR ) )
/**************************************************************************
*
* @macro:
* FT_HAS_SVG
*
* @description:
* A macro that returns true whenever a face object contains an 'SVG~'
* OpenType table.
*
* @since:
* 2.12
*/
#define FT_HAS_SVG( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_SVG ) )
/**************************************************************************
*
* @macro:
* FT_HAS_SBIX
*
* @description:
* A macro that returns true whenever a face object contains an 'sbix'
* OpenType table *and* outline glyphs.
*
* Currently, FreeType only supports bitmap glyphs in PNG format for this
* table (i.e., JPEG and TIFF formats are unsupported, as are
* Apple-specific formats not part of the OpenType specification).
*
* @note:
* For backward compatibility, a font with an 'sbix' table is treated as
* a bitmap-only face. Using @FT_Open_Face with
* @FT_PARAM_TAG_IGNORE_SBIX, an application can switch off 'sbix'
* handling so that the face is treated as an ordinary outline font with
* scalable outlines.
*
* Here is some pseudo code that roughly illustrates how to implement
* 'sbix' handling according to the OpenType specification.
*
* ```
* if ( FT_HAS_SBIX( face ) )
* {
* // open font as a scalable one without sbix handling
* FT_Face face2;
* FT_Parameter param = { FT_PARAM_TAG_IGNORE_SBIX, NULL };
* FT_Open_Args args = { FT_OPEN_PARAMS | ...,
* ...,
* 1, ¶m };
*
*
* FT_Open_Face( library, &args, 0, &face2 );
*
* <sort `face->available_size` as necessary into
* `preferred_sizes`[*]>
*
* for ( i = 0; i < face->num_fixed_sizes; i++ )
* {
* size = preferred_sizes[i].size;
*
* error = FT_Set_Pixel_Sizes( face, size, size );
* <error handling omitted>
*
* // check whether we have a glyph in a bitmap strike
* error = FT_Load_Glyph( face,
* glyph_index,
* FT_LOAD_SBITS_ONLY |
* FT_LOAD_BITMAP_METRICS_ONLY );
* if ( error == FT_Err_Invalid_Argument )
* continue;
* else if ( error )
* <other error handling omitted>
* else
* break;
* }
*
* if ( i != face->num_fixed_sizes )
* <load embedded bitmap with `FT_Load_Glyph`,
* scale it, display it, etc.>
*
* if ( i == face->num_fixed_sizes ||
* FT_HAS_SBIX_OVERLAY( face ) )
* <use `face2` to load outline glyph with `FT_Load_Glyph`,
* scale it, display it on top of the bitmap, etc.>
* }
* ```
*
* [*] Assuming a target value of 400dpi and available strike sizes 100,
* 200, 300, and 400dpi, a possible order might be [400, 200, 300, 100]:
* scaling 200dpi to 400dpi usually gives better results than scaling
* 300dpi to 400dpi; it is also much faster. However, scaling 100dpi to
* 400dpi can yield a too pixelated result, thus the preference might be
* 300dpi over 100dpi.
*
* @since:
* 2.12
*/
#define FT_HAS_SBIX( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_SBIX ) )
/**************************************************************************
*
* @macro:
* FT_HAS_SBIX_OVERLAY
*
* @description:
* A macro that returns true whenever a face object contains an 'sbix'
* OpenType table with bit~1 in its `flags` field set, instructing the
* application to overlay the bitmap strike with the corresponding
* outline glyph. See @FT_HAS_SBIX for pseudo code how to use it.
*
* @since:
* 2.12
*/
#define FT_HAS_SBIX_OVERLAY( face ) \
( !!( (face)->face_flags & FT_FACE_FLAG_SBIX_OVERLAY ) )
/**************************************************************************
*
* @enum:
* FT_STYLE_FLAG_XXX
*
* @description:
* A list of bit flags to indicate the style of a given face. These are
* used in the `style_flags` field of @FT_FaceRec.
*
* @values:
* FT_STYLE_FLAG_ITALIC ::
* The face style is italic or oblique.
*
* FT_STYLE_FLAG_BOLD ::
* The face is bold.
*
* @note:
* The style information as provided by FreeType is very basic. More
* details are beyond the scope and should be done on a higher level (for
* example, by analyzing various fields of the 'OS/2' table in SFNT based
* fonts).
*/
#define FT_STYLE_FLAG_ITALIC ( 1 << 0 )
#define FT_STYLE_FLAG_BOLD ( 1 << 1 )
/**************************************************************************
*
* @type:
* FT_Size_Internal
*
* @description:
* An opaque handle to an `FT_Size_InternalRec` structure, used to model
* private data of a given @FT_Size object.
*/
typedef struct FT_Size_InternalRec_* FT_Size_Internal;
/**************************************************************************
*
* @struct:
* FT_Size_Metrics
*
* @description:
* The size metrics structure gives the metrics of a size object.
*
* @fields:
* x_ppem ::
* The width of the scaled EM square in pixels, hence the term 'ppem'
* (pixels per EM). It is also referred to as 'nominal width'.
*
* y_ppem ::
* The height of the scaled EM square in pixels, hence the term 'ppem'
* (pixels per EM). It is also referred to as 'nominal height'.
*
* x_scale ::
* A 16.16 fractional scaling value to convert horizontal metrics from
* font units to 26.6 fractional pixels. Only relevant for scalable
* font formats.
*
* y_scale ::
* A 16.16 fractional scaling value to convert vertical metrics from
* font units to 26.6 fractional pixels. Only relevant for scalable
* font formats.
*
* ascender ::
* The ascender in 26.6 fractional pixels, rounded up to an integer
* value. See @FT_FaceRec for the details.
*
* descender ::
* The descender in 26.6 fractional pixels, rounded down to an integer
* value. See @FT_FaceRec for the details.
*
* height ::
* The height in 26.6 fractional pixels, rounded to an integer value.
* See @FT_FaceRec for the details.
*
* max_advance ::
* The maximum advance width in 26.6 fractional pixels, rounded to an
* integer value. See @FT_FaceRec for the details.
*
* @note:
* The scaling values, if relevant, are determined first during a size
* changing operation. The remaining fields are then set by the driver.
* For scalable formats, they are usually set to scaled values of the
* corresponding fields in @FT_FaceRec. Some values like ascender or
* descender are rounded for historical reasons; more precise values (for
* outline fonts) can be derived by scaling the corresponding @FT_FaceRec
* values manually, with code similar to the following.
*
* ```
* scaled_ascender = FT_MulFix( face->ascender,
* size_metrics->y_scale );
* ```
*
* Note that due to glyph hinting and the selected rendering mode these
* values are usually not exact; consequently, they must be treated as
* unreliable with an error margin of at least one pixel!
*
* Indeed, the only way to get the exact metrics is to render _all_
* glyphs. As this would be a definite performance hit, it is up to
* client applications to perform such computations.
*
* The `FT_Size_Metrics` structure is valid for bitmap fonts also.
*
*
* **TrueType fonts with native bytecode hinting**
*
* All applications that handle TrueType fonts with native hinting must
* be aware that TTFs expect different rounding of vertical font
* dimensions. The application has to cater for this, especially if it
* wants to rely on a TTF's vertical data (for example, to properly align
* box characters vertically).
*
* Only the application knows _in advance_ that it is going to use native
* hinting for TTFs! FreeType, on the other hand, selects the hinting
* mode not at the time of creating an @FT_Size object but much later,
* namely while calling @FT_Load_Glyph.
*
* Here is some pseudo code that illustrates a possible solution.
*
* ```
* font_format = FT_Get_Font_Format( face );
*
* if ( !strcmp( font_format, "TrueType" ) &&
* do_native_bytecode_hinting )
* {
* ascender = ROUND( FT_MulFix( face->ascender,
* size_metrics->y_scale ) );
* descender = ROUND( FT_MulFix( face->descender,
* size_metrics->y_scale ) );
* }
* else
* {
* ascender = size_metrics->ascender;
* descender = size_metrics->descender;
* }
*
* height = size_metrics->height;
* max_advance = size_metrics->max_advance;
* ```
*/
typedef struct FT_Size_Metrics_
{
FT_UShort x_ppem; /* horizontal pixels per EM */
FT_UShort y_ppem; /* vertical pixels per EM */
FT_Fixed x_scale; /* scaling values used to convert font */
FT_Fixed y_scale; /* units to 26.6 fractional pixels */
FT_Pos ascender; /* ascender in 26.6 frac. pixels */
FT_Pos descender; /* descender in 26.6 frac. pixels */
FT_Pos height; /* text height in 26.6 frac. pixels */
FT_Pos max_advance; /* max horizontal advance, in 26.6 pixels */
} FT_Size_Metrics;
/**************************************************************************
*
* @struct:
* FT_SizeRec
*
* @description:
* FreeType root size class structure. A size object models a face
* object at a given size.
*
* @fields:
* face ::
* Handle to the parent face object.
*
* generic ::
* A typeless pointer, unused by the FreeType library or any of its
* drivers. It can be used by client applications to link their own
* data to each size object.
*
* metrics ::
* Metrics for this size object. This field is read-only.
*/
typedef struct FT_SizeRec_
{
FT_Face face; /* parent face object */
FT_Generic generic; /* generic pointer for client uses */
FT_Size_Metrics metrics; /* size metrics */
FT_Size_Internal internal;
} FT_SizeRec;
/**************************************************************************
*
* @struct:
* FT_SubGlyph
*
* @description:
* The subglyph structure is an internal object used to describe
* subglyphs (for example, in the case of composites).
*
* @note:
* The subglyph implementation is not part of the high-level API, hence
* the forward structure declaration.
*
* You can however retrieve subglyph information with
* @FT_Get_SubGlyph_Info.
*/
typedef struct FT_SubGlyphRec_* FT_SubGlyph;
/**************************************************************************
*
* @type:
* FT_Slot_Internal
*
* @description:
* An opaque handle to an `FT_Slot_InternalRec` structure, used to model
* private data of a given @FT_GlyphSlot object.
*/
typedef struct FT_Slot_InternalRec_* FT_Slot_Internal;
/**************************************************************************
*
* @struct:
* FT_GlyphSlotRec
*
* @description:
* FreeType root glyph slot class structure. A glyph slot is a container
* where individual glyphs can be loaded, be they in outline or bitmap
* format.
*
* @fields:
* library ::
* A handle to the FreeType library instance this slot belongs to.
*
* face ::
* A handle to the parent face object.
*
* next ::
* In some cases (like some font tools), several glyph slots per face
* object can be a good thing. As this is rare, the glyph slots are
* listed through a direct, single-linked list using its `next` field.
*
* glyph_index ::
* [Since 2.10] The glyph index passed as an argument to @FT_Load_Glyph
* while initializing the glyph slot.
*
* generic ::
* A typeless pointer unused by the FreeType library or any of its
* drivers. It can be used by client applications to link their own
* data to each glyph slot object.
*
* metrics ::
* The metrics of the last loaded glyph in the slot. The returned
* values depend on the last load flags (see the @FT_Load_Glyph API
* function) and can be expressed either in 26.6 fractional pixels or
* font units.
*
* Note that even when the glyph image is transformed, the metrics are
* not.
*
* linearHoriAdvance ::
* The advance width of the unhinted glyph. Its value is expressed in
* 16.16 fractional pixels, unless @FT_LOAD_LINEAR_DESIGN is set when
* loading the glyph. This field can be important to perform correct
* WYSIWYG layout. Only relevant for outline glyphs.
*
* linearVertAdvance ::
* The advance height of the unhinted glyph. Its value is expressed in
* 16.16 fractional pixels, unless @FT_LOAD_LINEAR_DESIGN is set when
* loading the glyph. This field can be important to perform correct
* WYSIWYG layout. Only relevant for outline glyphs.
*
* advance ::
* This shorthand is, depending on @FT_LOAD_IGNORE_TRANSFORM, the
* transformed (hinted) advance width for the glyph, in 26.6 fractional
* pixel format. As specified with @FT_LOAD_VERTICAL_LAYOUT, it uses
* either the `horiAdvance` or the `vertAdvance` value of `metrics`
* field.
*
* format ::
* This field indicates the format of the image contained in the glyph
* slot. Typically @FT_GLYPH_FORMAT_BITMAP, @FT_GLYPH_FORMAT_OUTLINE,
* or @FT_GLYPH_FORMAT_COMPOSITE, but other values are possible.
*
* bitmap ::
* This field is used as a bitmap descriptor. Note that the address
* and content of the bitmap buffer can change between calls of
* @FT_Load_Glyph and a few other functions.
*
* bitmap_left ::
* The bitmap's left bearing expressed in integer pixels.
*
* bitmap_top ::
* The bitmap's top bearing expressed in integer pixels. This is the
* distance from the baseline to the top-most glyph scanline, upwards
* y~coordinates being **positive**.
*
* outline ::
* The outline descriptor for the current glyph image if its format is
* @FT_GLYPH_FORMAT_OUTLINE. Once a glyph is loaded, `outline` can be
* transformed, distorted, emboldened, etc. However, it must not be
* freed.
*
* [Since 2.10.1] If @FT_LOAD_NO_SCALE is set, outline coordinates of
* OpenType variation fonts for a selected instance are internally
* handled as 26.6 fractional font units but returned as (rounded)
* integers, as expected. To get unrounded font units, don't use
* @FT_LOAD_NO_SCALE but load the glyph with @FT_LOAD_NO_HINTING and
* scale it, using the font's `units_per_EM` value as the ppem.
*
* num_subglyphs ::
* The number of subglyphs in a composite glyph. This field is only
* valid for the composite glyph format that should normally only be
* loaded with the @FT_LOAD_NO_RECURSE flag.
*
* subglyphs ::
* An array of subglyph descriptors for composite glyphs. There are
* `num_subglyphs` elements in there. Currently internal to FreeType.
*
* control_data ::
* Certain font drivers can also return the control data for a given
* glyph image (e.g. TrueType bytecode, Type~1 charstrings, etc.).
* This field is a pointer to such data; it is currently internal to
* FreeType.
*
* control_len ::
* This is the length in bytes of the control data. Currently internal
* to FreeType.
*
* other ::
* Reserved.
*
* lsb_delta ::
* The difference between hinted and unhinted left side bearing while
* auto-hinting is active. Zero otherwise.
*
* rsb_delta ::
* The difference between hinted and unhinted right side bearing while
* auto-hinting is active. Zero otherwise.
*
* @note:
* If @FT_Load_Glyph is called with default flags (see @FT_LOAD_DEFAULT)
* the glyph image is loaded in the glyph slot in its native format
* (e.g., an outline glyph for TrueType and Type~1 formats). [Since 2.9]
* The prospective bitmap metrics are calculated according to
* @FT_LOAD_TARGET_XXX and other flags even for the outline glyph, even
* if @FT_LOAD_RENDER is not set.
*
* This image can later be converted into a bitmap by calling
* @FT_Render_Glyph. This function searches the current renderer for the
* native image's format, then invokes it.
*
* The renderer is in charge of transforming the native image through the
* slot's face transformation fields, then converting it into a bitmap
* that is returned in `slot->bitmap`.
*
* Note that `slot->bitmap_left` and `slot->bitmap_top` are also used to
* specify the position of the bitmap relative to the current pen
* position (e.g., coordinates (0,0) on the baseline). Of course,
* `slot->format` is also changed to @FT_GLYPH_FORMAT_BITMAP.
*
* Here is a small pseudo code fragment that shows how to use `lsb_delta`
* and `rsb_delta` to do fractional positioning of glyphs:
*
* ```
* FT_GlyphSlot slot = face->glyph;
* FT_Pos origin_x = 0;
*
*
* for all glyphs do
* <load glyph with `FT_Load_Glyph'>
*
* FT_Outline_Translate( slot->outline, origin_x & 63, 0 );
*
* <save glyph image, or render glyph, or ...>
*
* <compute kern between current and next glyph
* and add it to `origin_x'>
*
* origin_x += slot->advance.x;
* origin_x += slot->lsb_delta - slot->rsb_delta;
* endfor
* ```
*
* Here is another small pseudo code fragment that shows how to use
* `lsb_delta` and `rsb_delta` to improve integer positioning of glyphs:
*
* ```
* FT_GlyphSlot slot = face->glyph;
* FT_Pos origin_x = 0;
* FT_Pos prev_rsb_delta = 0;
*
*
* for all glyphs do
* <compute kern between current and previous glyph
* and add it to `origin_x'>
*
* <load glyph with `FT_Load_Glyph'>
*
* if ( prev_rsb_delta - slot->lsb_delta > 32 )
* origin_x -= 64;
* else if ( prev_rsb_delta - slot->lsb_delta < -31 )
* origin_x += 64;
*
* prev_rsb_delta = slot->rsb_delta;
*
* <save glyph image, or render glyph, or ...>
*
* origin_x += slot->advance.x;
* endfor
* ```
*
* If you use strong auto-hinting, you **must** apply these delta values!
* Otherwise you will experience far too large inter-glyph spacing at
* small rendering sizes in most cases. Note that it doesn't harm to use
* the above code for other hinting modes also, since the delta values
* are zero then.
*/
typedef struct FT_GlyphSlotRec_
{
FT_Library library;
FT_Face face;
FT_GlyphSlot next;
FT_UInt glyph_index; /* new in 2.10; was reserved previously */
FT_Generic generic;
FT_Glyph_Metrics metrics;
FT_Fixed linearHoriAdvance;
FT_Fixed linearVertAdvance;
FT_Vector advance;
FT_Glyph_Format format;
FT_Bitmap bitmap;
FT_Int bitmap_left;
FT_Int bitmap_top;
FT_Outline outline;
FT_UInt num_subglyphs;
FT_SubGlyph subglyphs;
void* control_data;
long control_len;
FT_Pos lsb_delta;
FT_Pos rsb_delta;
void* other;
FT_Slot_Internal internal;
} FT_GlyphSlotRec;
/*************************************************************************/
/*************************************************************************/
/* */
/* F U N C T I O N S */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @function:
* FT_Init_FreeType
*
* @description:
* Initialize a new FreeType library object. The set of modules that are
* registered by this function is determined at build time.
*
* @output:
* alibrary ::
* A handle to a new library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* In case you want to provide your own memory allocating routines, use
* @FT_New_Library instead, followed by a call to @FT_Add_Default_Modules
* (or a series of calls to @FT_Add_Module) and
* @FT_Set_Default_Properties.
*
* See the documentation of @FT_Library and @FT_Face for multi-threading
* issues.
*
* If you need reference-counting (cf. @FT_Reference_Library), use
* @FT_New_Library and @FT_Done_Library.
*
* If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
* set, this function reads the `FREETYPE_PROPERTIES` environment
* variable to control driver properties. See section @properties for
* more.
*/
FT_EXPORT( FT_Error )
FT_Init_FreeType( FT_Library *alibrary );
/**************************************************************************
*
* @function:
* FT_Done_FreeType
*
* @description:
* Destroy a given FreeType library object and all of its children,
* including resources, drivers, faces, sizes, etc.
*
* @input:
* library ::
* A handle to the target library object.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_FreeType( FT_Library library );
/**************************************************************************
*
* @enum:
* FT_OPEN_XXX
*
* @description:
* A list of bit field constants used within the `flags` field of the
* @FT_Open_Args structure.
*
* @values:
* FT_OPEN_MEMORY ::
* This is a memory-based stream.
*
* FT_OPEN_STREAM ::
* Copy the stream from the `stream` field.
*
* FT_OPEN_PATHNAME ::
* Create a new input stream from a C~path name.
*
* FT_OPEN_DRIVER ::
* Use the `driver` field.
*
* FT_OPEN_PARAMS ::
* Use the `num_params` and `params` fields.
*
* @note:
* The `FT_OPEN_MEMORY`, `FT_OPEN_STREAM`, and `FT_OPEN_PATHNAME` flags
* are mutually exclusive.
*/
#define FT_OPEN_MEMORY 0x1
#define FT_OPEN_STREAM 0x2
#define FT_OPEN_PATHNAME 0x4
#define FT_OPEN_DRIVER 0x8
#define FT_OPEN_PARAMS 0x10
/* these constants are deprecated; use the corresponding `FT_OPEN_XXX` */
/* values instead */
#define ft_open_memory FT_OPEN_MEMORY
#define ft_open_stream FT_OPEN_STREAM
#define ft_open_pathname FT_OPEN_PATHNAME
#define ft_open_driver FT_OPEN_DRIVER
#define ft_open_params FT_OPEN_PARAMS
/**************************************************************************
*
* @struct:
* FT_Parameter
*
* @description:
* A simple structure to pass more or less generic parameters to
* @FT_Open_Face and @FT_Face_Properties.
*
* @fields:
* tag ::
* A four-byte identification tag.
*
* data ::
* A pointer to the parameter data.
*
* @note:
* The ID and function of parameters are driver-specific. See section
* @parameter_tags for more information.
*/
typedef struct FT_Parameter_
{
FT_ULong tag;
FT_Pointer data;
} FT_Parameter;
/**************************************************************************
*
* @struct:
* FT_Open_Args
*
* @description:
* A structure to indicate how to open a new font file or stream. A
* pointer to such a structure can be used as a parameter for the
* functions @FT_Open_Face and @FT_Attach_Stream.
*
* @fields:
* flags ::
* A set of bit flags indicating how to use the structure.
*
* memory_base ::
* The first byte of the file in memory.
*
* memory_size ::
* The size in bytes of the file in memory.
*
* pathname ::
* A pointer to an 8-bit file pathname, which must be a C~string (i.e.,
* no null bytes except at the very end). The pointer is not owned by
* FreeType.
*
* stream ::
* A handle to a source stream object.
*
* driver ::
* This field is exclusively used by @FT_Open_Face; it simply specifies
* the font driver to use for opening the face. If set to `NULL`,
* FreeType tries to load the face with each one of the drivers in its
* list.
*
* num_params ::
* The number of extra parameters.
*
* params ::
* Extra parameters passed to the font driver when opening a new face.
*
* @note:
* The stream type is determined by the contents of `flags`:
*
* If the @FT_OPEN_MEMORY bit is set, assume that this is a memory file
* of `memory_size` bytes, located at `memory_address`. The data are not
* copied, and the client is responsible for releasing and destroying
* them _after_ the corresponding call to @FT_Done_Face.
*
* Otherwise, if the @FT_OPEN_STREAM bit is set, assume that a custom
* input stream `stream` is used.
*
* Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this is a
* normal file and use `pathname` to open it.
*
* If none of the above bits are set or if multiple are set at the same
* time, the flags are invalid and @FT_Open_Face fails.
*
* If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to open
* the file with the driver whose handler is in `driver`.
*
* If the @FT_OPEN_PARAMS bit is set, the parameters given by
* `num_params` and `params` is used. They are ignored otherwise.
*
* Ideally, both the `pathname` and `params` fields should be tagged as
* 'const'; this is missing for API backward compatibility. In other
* words, applications should treat them as read-only.
*/
typedef struct FT_Open_Args_
{
FT_UInt flags;
const FT_Byte* memory_base;
FT_Long memory_size;
FT_String* pathname;
FT_Stream stream;
FT_Module driver;
FT_Int num_params;
FT_Parameter* params;
} FT_Open_Args;
/**************************************************************************
*
* @function:
* FT_New_Face
*
* @description:
* Call @FT_Open_Face to open a font by its pathname.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* pathname ::
* A path to the font file.
*
* face_index ::
* See @FT_Open_Face for a detailed description of this parameter.
*
* @output:
* aface ::
* A handle to a new face object. If `face_index` is greater than or
* equal to zero, it must be non-`NULL`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `pathname` string should be recognizable as such by a standard
* `fopen` call on your system; in particular, this means that `pathname`
* must not contain null bytes. If that is not sufficient to address all
* file name possibilities (for example, to handle wide character file
* names on Windows in UTF-16 encoding) you might use @FT_Open_Face to
* pass a memory array or a stream object instead.
*
* Use @FT_Done_Face to destroy the created @FT_Face object (along with
* its slot and sizes).
*/
FT_EXPORT( FT_Error )
FT_New_Face( FT_Library library,
const char* filepathname,
FT_Long face_index,
FT_Face *aface );
/**************************************************************************
*
* @function:
* FT_New_Memory_Face
*
* @description:
* Call @FT_Open_Face to open a font that has been loaded into memory.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* file_base ::
* A pointer to the beginning of the font data.
*
* file_size ::
* The size of the memory chunk used by the font data.
*
* face_index ::
* See @FT_Open_Face for a detailed description of this parameter.
*
* @output:
* aface ::
* A handle to a new face object. If `face_index` is greater than or
* equal to zero, it must be non-`NULL`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You must not deallocate the memory before calling @FT_Done_Face.
*/
FT_EXPORT( FT_Error )
FT_New_Memory_Face( FT_Library library,
const FT_Byte* file_base,
FT_Long file_size,
FT_Long face_index,
FT_Face *aface );
/**************************************************************************
*
* @function:
* FT_Open_Face
*
* @description:
* Create a face object from a given resource described by @FT_Open_Args.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* args ::
* A pointer to an `FT_Open_Args` structure that must be filled by the
* caller.
*
* face_index ::
* This field holds two different values. Bits 0-15 are the index of
* the face in the font file (starting with value~0). Set it to~0 if
* there is only one face in the font file.
*
* [Since 2.6.1] Bits 16-30 are relevant to GX and OpenType variation
* fonts only, specifying the named instance index for the current face
* index (starting with value~1; value~0 makes FreeType ignore named
* instances). For non-variation fonts, bits 16-30 are ignored.
* Assuming that you want to access the third named instance in face~4,
* `face_index` should be set to 0x00030004. If you want to access
* face~4 without variation handling, simply set `face_index` to
* value~4.
*
* `FT_Open_Face` and its siblings can be used to quickly check whether
* the font format of a given font resource is supported by FreeType.
* In general, if the `face_index` argument is negative, the function's
* return value is~0 if the font format is recognized, or non-zero
* otherwise. The function allocates a more or less empty face handle
* in `*aface` (if `aface` isn't `NULL`); the only two useful fields in
* this special case are `face->num_faces` and `face->style_flags`.
* For any negative value of `face_index`, `face->num_faces` gives the
* number of faces within the font file. For the negative value
* '-(N+1)' (with 'N' a non-negative 16-bit value), bits 16-30 in
* `face->style_flags` give the number of named instances in face 'N'
* if we have a variation font (or zero otherwise). After examination,
* the returned @FT_Face structure should be deallocated with a call to
* @FT_Done_Face.
*
* @output:
* aface ::
* A handle to a new face object. If `face_index` is greater than or
* equal to zero, it must be non-`NULL`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Unlike FreeType 1.x, this function automatically creates a glyph slot
* for the face object that can be accessed directly through
* `face->glyph`.
*
* Each new face object created with this function also owns a default
* @FT_Size object, accessible as `face->size`.
*
* One @FT_Library instance can have multiple face objects, this is,
* @FT_Open_Face and its siblings can be called multiple times using the
* same `library` argument.
*
* See the discussion of reference counters in the description of
* @FT_Reference_Face.
*
* If `FT_OPEN_STREAM` is set in `args->flags`, the stream in
* `args->stream` is automatically closed before this function returns
* any error (including `FT_Err_Invalid_Argument`).
*
* @example:
* To loop over all faces, use code similar to the following snippet
* (omitting the error handling).
*
* ```
* ...
* FT_Face face;
* FT_Long i, num_faces;
*
*
* error = FT_Open_Face( library, args, -1, &face );
* if ( error ) { ... }
*
* num_faces = face->num_faces;
* FT_Done_Face( face );
*
* for ( i = 0; i < num_faces; i++ )
* {
* ...
* error = FT_Open_Face( library, args, i, &face );
* ...
* FT_Done_Face( face );
* ...
* }
* ```
*
* To loop over all valid values for `face_index`, use something similar
* to the following snippet, again without error handling. The code
* accesses all faces immediately (thus only a single call of
* `FT_Open_Face` within the do-loop), with and without named instances.
*
* ```
* ...
* FT_Face face;
*
* FT_Long num_faces = 0;
* FT_Long num_instances = 0;
*
* FT_Long face_idx = 0;
* FT_Long instance_idx = 0;
*
*
* do
* {
* FT_Long id = ( instance_idx << 16 ) + face_idx;
*
*
* error = FT_Open_Face( library, args, id, &face );
* if ( error ) { ... }
*
* num_faces = face->num_faces;
* num_instances = face->style_flags >> 16;
*
* ...
*
* FT_Done_Face( face );
*
* if ( instance_idx < num_instances )
* instance_idx++;
* else
* {
* face_idx++;
* instance_idx = 0;
* }
*
* } while ( face_idx < num_faces )
* ```
*/
FT_EXPORT( FT_Error )
FT_Open_Face( FT_Library library,
const FT_Open_Args* args,
FT_Long face_index,
FT_Face *aface );
/**************************************************************************
*
* @function:
* FT_Attach_File
*
* @description:
* Call @FT_Attach_Stream to attach a file.
*
* @inout:
* face ::
* The target face object.
*
* @input:
* filepathname ::
* The pathname.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Attach_File( FT_Face face,
const char* filepathname );
/**************************************************************************
*
* @function:
* FT_Attach_Stream
*
* @description:
* 'Attach' data to a face object. Normally, this is used to read
* additional information for the face object. For example, you can
* attach an AFM file that comes with a Type~1 font to get the kerning
* values and other metrics.
*
* @inout:
* face ::
* The target face object.
*
* @input:
* parameters ::
* A pointer to @FT_Open_Args that must be filled by the caller.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The meaning of the 'attach' (i.e., what really happens when the new
* file is read) is not fixed by FreeType itself. It really depends on
* the font format (and thus the font driver).
*
* Client applications are expected to know what they are doing when
* invoking this function. Most drivers simply do not implement file or
* stream attachments.
*/
FT_EXPORT( FT_Error )
FT_Attach_Stream( FT_Face face,
FT_Open_Args* parameters );
/**************************************************************************
*
* @function:
* FT_Reference_Face
*
* @description:
* A counter gets initialized to~1 at the time an @FT_Face structure is
* created. This function increments the counter. @FT_Done_Face then
* only destroys a face if the counter is~1, otherwise it simply
* decrements the counter.
*
* This function helps in managing life-cycles of structures that
* reference @FT_Face objects.
*
* @input:
* face ::
* A handle to a target face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.4.2
*
*/
FT_EXPORT( FT_Error )
FT_Reference_Face( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Done_Face
*
* @description:
* Discard a given face object, as well as all of its child slots and
* sizes.
*
* @input:
* face ::
* A handle to a target face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Face.
*/
FT_EXPORT( FT_Error )
FT_Done_Face( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Select_Size
*
* @description:
* Select a bitmap strike. To be more precise, this function sets the
* scaling factors of the active @FT_Size object in a face so that
* bitmaps from this particular strike are taken by @FT_Load_Glyph and
* friends.
*
* @inout:
* face ::
* A handle to a target face object.
*
* @input:
* strike_index ::
* The index of the bitmap strike in the `available_sizes` field of
* @FT_FaceRec structure.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* For bitmaps embedded in outline fonts it is common that only a subset
* of the available glyphs at a given ppem value is available. FreeType
* silently uses outlines if there is no bitmap for a given glyph index.
*
* For GX and OpenType variation fonts, a bitmap strike makes sense only
* if the default instance is active (this is, no glyph variation takes
* place); otherwise, FreeType simply ignores bitmap strikes. The same
* is true for all named instances that are different from the default
* instance.
*
* Don't use this function if you are using the FreeType cache API.
*/
FT_EXPORT( FT_Error )
FT_Select_Size( FT_Face face,
FT_Int strike_index );
/**************************************************************************
*
* @enum:
* FT_Size_Request_Type
*
* @description:
* An enumeration type that lists the supported size request types, i.e.,
* what input size (in font units) maps to the requested output size (in
* pixels, as computed from the arguments of @FT_Size_Request).
*
* @values:
* FT_SIZE_REQUEST_TYPE_NOMINAL ::
* The nominal size. The `units_per_EM` field of @FT_FaceRec is used
* to determine both scaling values.
*
* This is the standard scaling found in most applications. In
* particular, use this size request type for TrueType fonts if they
* provide optical scaling or something similar. Note, however, that
* `units_per_EM` is a rather abstract value which bears no relation to
* the actual size of the glyphs in a font.
*
* FT_SIZE_REQUEST_TYPE_REAL_DIM ::
* The real dimension. The sum of the `ascender` and (minus of) the
* `descender` fields of @FT_FaceRec is used to determine both scaling
* values.
*
* FT_SIZE_REQUEST_TYPE_BBOX ::
* The font bounding box. The width and height of the `bbox` field of
* @FT_FaceRec are used to determine the horizontal and vertical
* scaling value, respectively.
*
* FT_SIZE_REQUEST_TYPE_CELL ::
* The `max_advance_width` field of @FT_FaceRec is used to determine
* the horizontal scaling value; the vertical scaling value is
* determined the same way as @FT_SIZE_REQUEST_TYPE_REAL_DIM does.
* Finally, both scaling values are set to the smaller one. This type
* is useful if you want to specify the font size for, say, a window of
* a given dimension and 80x24 cells.
*
* FT_SIZE_REQUEST_TYPE_SCALES ::
* Specify the scaling values directly.
*
* @note:
* The above descriptions only apply to scalable formats. For bitmap
* formats, the behaviour is up to the driver.
*
* See the note section of @FT_Size_Metrics if you wonder how size
* requesting relates to scaling values.
*/
typedef enum FT_Size_Request_Type_
{
FT_SIZE_REQUEST_TYPE_NOMINAL,
FT_SIZE_REQUEST_TYPE_REAL_DIM,
FT_SIZE_REQUEST_TYPE_BBOX,
FT_SIZE_REQUEST_TYPE_CELL,
FT_SIZE_REQUEST_TYPE_SCALES,
FT_SIZE_REQUEST_TYPE_MAX
} FT_Size_Request_Type;
/**************************************************************************
*
* @struct:
* FT_Size_RequestRec
*
* @description:
* A structure to model a size request.
*
* @fields:
* type ::
* See @FT_Size_Request_Type.
*
* width ::
* The desired width, given as a 26.6 fractional point value (with 72pt
* = 1in).
*
* height ::
* The desired height, given as a 26.6 fractional point value (with
* 72pt = 1in).
*
* horiResolution ::
* The horizontal resolution (dpi, i.e., pixels per inch). If set to
* zero, `width` is treated as a 26.6 fractional **pixel** value, which
* gets internally rounded to an integer.
*
* vertResolution ::
* The vertical resolution (dpi, i.e., pixels per inch). If set to
* zero, `height` is treated as a 26.6 fractional **pixel** value,
* which gets internally rounded to an integer.
*
* @note:
* If `width` is zero, the horizontal scaling value is set equal to the
* vertical scaling value, and vice versa.
*
* If `type` is `FT_SIZE_REQUEST_TYPE_SCALES`, `width` and `height` are
* interpreted directly as 16.16 fractional scaling values, without any
* further modification, and both `horiResolution` and `vertResolution`
* are ignored.
*/
typedef struct FT_Size_RequestRec_
{
FT_Size_Request_Type type;
FT_Long width;
FT_Long height;
FT_UInt horiResolution;
FT_UInt vertResolution;
} FT_Size_RequestRec;
/**************************************************************************
*
* @struct:
* FT_Size_Request
*
* @description:
* A handle to a size request structure.
*/
typedef struct FT_Size_RequestRec_ *FT_Size_Request;
/**************************************************************************
*
* @function:
* FT_Request_Size
*
* @description:
* Resize the scale of the active @FT_Size object in a face.
*
* @inout:
* face ::
* A handle to a target face object.
*
* @input:
* req ::
* A pointer to a @FT_Size_RequestRec.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Although drivers may select the bitmap strike matching the request,
* you should not rely on this if you intend to select a particular
* bitmap strike. Use @FT_Select_Size instead in that case.
*
* The relation between the requested size and the resulting glyph size
* is dependent entirely on how the size is defined in the source face.
* The font designer chooses the final size of each glyph relative to
* this size. For more information refer to
* 'https://www.freetype.org/freetype2/docs/glyphs/glyphs-2.html'.
*
* Contrary to @FT_Set_Char_Size, this function doesn't have special code
* to normalize zero-valued widths, heights, or resolutions, which are
* treated as @FT_LOAD_NO_SCALE.
*
* Don't use this function if you are using the FreeType cache API.
*/
FT_EXPORT( FT_Error )
FT_Request_Size( FT_Face face,
FT_Size_Request req );
/**************************************************************************
*
* @function:
* FT_Set_Char_Size
*
* @description:
* Call @FT_Request_Size to request the nominal size (in points).
*
* @inout:
* face ::
* A handle to a target face object.
*
* @input:
* char_width ::
* The nominal width, in 26.6 fractional points.
*
* char_height ::
* The nominal height, in 26.6 fractional points.
*
* horz_resolution ::
* The horizontal resolution in dpi.
*
* vert_resolution ::
* The vertical resolution in dpi.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* While this function allows fractional points as input values, the
* resulting ppem value for the given resolution is always rounded to the
* nearest integer.
*
* If either the character width or height is zero, it is set equal to
* the other value.
*
* If either the horizontal or vertical resolution is zero, it is set
* equal to the other value.
*
* A character width or height smaller than 1pt is set to 1pt; if both
* resolution values are zero, they are set to 72dpi.
*
* Don't use this function if you are using the FreeType cache API.
*/
FT_EXPORT( FT_Error )
FT_Set_Char_Size( FT_Face face,
FT_F26Dot6 char_width,
FT_F26Dot6 char_height,
FT_UInt horz_resolution,
FT_UInt vert_resolution );
/**************************************************************************
*
* @function:
* FT_Set_Pixel_Sizes
*
* @description:
* Call @FT_Request_Size to request the nominal size (in pixels).
*
* @inout:
* face ::
* A handle to the target face object.
*
* @input:
* pixel_width ::
* The nominal width, in pixels.
*
* pixel_height ::
* The nominal height, in pixels.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should not rely on the resulting glyphs matching or being
* constrained to this pixel size. Refer to @FT_Request_Size to
* understand how requested sizes relate to actual sizes.
*
* Don't use this function if you are using the FreeType cache API.
*/
FT_EXPORT( FT_Error )
FT_Set_Pixel_Sizes( FT_Face face,
FT_UInt pixel_width,
FT_UInt pixel_height );
/**************************************************************************
*
* @function:
* FT_Load_Glyph
*
* @description:
* Load a glyph into the glyph slot of a face object.
*
* @inout:
* face ::
* A handle to the target face object where the glyph is loaded.
*
* @input:
* glyph_index ::
* The index of the glyph in the font file. For CID-keyed fonts
* (either in PS or in CFF format) this argument specifies the CID
* value.
*
* load_flags ::
* A flag indicating what to load for this glyph. The @FT_LOAD_XXX
* flags can be used to control the glyph loading process (e.g.,
* whether the outline should be scaled, whether to load bitmaps or
* not, whether to hint the outline, etc).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* For proper scaling and hinting, the active @FT_Size object owned by
* the face has to be meaningfully initialized by calling
* @FT_Set_Char_Size before this function, for example. The loaded
* glyph may be transformed. See @FT_Set_Transform for the details.
*
* For subsetted CID-keyed fonts, `FT_Err_Invalid_Argument` is returned
* for invalid CID values (this is, for CID values that don't have a
* corresponding glyph in the font). See the discussion of the
* @FT_FACE_FLAG_CID_KEYED flag for more details.
*
* If you receive `FT_Err_Glyph_Too_Big`, try getting the glyph outline
* at EM size, then scale it manually and fill it as a graphics
* operation.
*/
FT_EXPORT( FT_Error )
FT_Load_Glyph( FT_Face face,
FT_UInt glyph_index,
FT_Int32 load_flags );
/**************************************************************************
*
* @function:
* FT_Load_Char
*
* @description:
* Load a glyph into the glyph slot of a face object, accessed by its
* character code.
*
* @inout:
* face ::
* A handle to a target face object where the glyph is loaded.
*
* @input:
* char_code ::
* The glyph's character code, according to the current charmap used in
* the face.
*
* load_flags ::
* A flag indicating what to load for this glyph. The @FT_LOAD_XXX
* constants can be used to control the glyph loading process (e.g.,
* whether the outline should be scaled, whether to load bitmaps or
* not, whether to hint the outline, etc).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function simply calls @FT_Get_Char_Index and @FT_Load_Glyph.
*
* Many fonts contain glyphs that can't be loaded by this function since
* its glyph indices are not listed in any of the font's charmaps.
*
* If no active cmap is set up (i.e., `face->charmap` is zero), the call
* to @FT_Get_Char_Index is omitted, and the function behaves identically
* to @FT_Load_Glyph.
*/
FT_EXPORT( FT_Error )
FT_Load_Char( FT_Face face,
FT_ULong char_code,
FT_Int32 load_flags );
/**************************************************************************
*
* @enum:
* FT_LOAD_XXX
*
* @description:
* A list of bit field constants for @FT_Load_Glyph to indicate what kind
* of operations to perform during glyph loading.
*
* @values:
* FT_LOAD_DEFAULT ::
* Corresponding to~0, this value is used as the default glyph load
* operation. In this case, the following happens:
*
* 1. FreeType looks for a bitmap for the glyph corresponding to the
* face's current size. If one is found, the function returns. The
* bitmap data can be accessed from the glyph slot (see note below).
*
* 2. If no embedded bitmap is searched for or found, FreeType looks
* for a scalable outline. If one is found, it is loaded from the font
* file, scaled to device pixels, then 'hinted' to the pixel grid in
* order to optimize it. The outline data can be accessed from the
* glyph slot (see note below).
*
* Note that by default the glyph loader doesn't render outlines into
* bitmaps. The following flags are used to modify this default
* behaviour to more specific and useful cases.
*
* FT_LOAD_NO_SCALE ::
* Don't scale the loaded outline glyph but keep it in font units.
* This flag is also assumed if @FT_Size owned by the face was not
* properly initialized.
*
* This flag implies @FT_LOAD_NO_HINTING and @FT_LOAD_NO_BITMAP, and
* unsets @FT_LOAD_RENDER.
*
* If the font is 'tricky' (see @FT_FACE_FLAG_TRICKY for more), using
* `FT_LOAD_NO_SCALE` usually yields meaningless outlines because the
* subglyphs must be scaled and positioned with hinting instructions.
* This can be solved by loading the font without `FT_LOAD_NO_SCALE`
* and setting the character size to `font->units_per_EM`.
*
* FT_LOAD_NO_HINTING ::
* Disable hinting. This generally generates 'blurrier' bitmap glyphs
* when the glyph are rendered in any of the anti-aliased modes. See
* also the note below.
*
* This flag is implied by @FT_LOAD_NO_SCALE.
*
* FT_LOAD_RENDER ::
* Call @FT_Render_Glyph after the glyph is loaded. By default, the
* glyph is rendered in @FT_RENDER_MODE_NORMAL mode. This can be
* overridden by @FT_LOAD_TARGET_XXX or @FT_LOAD_MONOCHROME.
*
* This flag is unset by @FT_LOAD_NO_SCALE.
*
* FT_LOAD_NO_BITMAP ::
* Ignore bitmap strikes when loading. Bitmap-only fonts ignore this
* flag.
*
* @FT_LOAD_NO_SCALE always sets this flag.
*
* FT_LOAD_SBITS_ONLY ::
* [Since 2.12] This is the opposite of @FT_LOAD_NO_BITMAP, more or
* less: @FT_Load_Glyph returns `FT_Err_Invalid_Argument` if the face
* contains a bitmap strike for the given size (or the strike selected
* by @FT_Select_Size) but there is no glyph in the strike.
*
* Note that this load flag was part of FreeType since version 2.0.6
* but previously tagged as internal.
*
* FT_LOAD_VERTICAL_LAYOUT ::
* Load the glyph for vertical text layout. In particular, the
* `advance` value in the @FT_GlyphSlotRec structure is set to the
* `vertAdvance` value of the `metrics` field.
*
* In case @FT_HAS_VERTICAL doesn't return true, you shouldn't use this
* flag currently. Reason is that in this case vertical metrics get
* synthesized, and those values are not always consistent across
* various font formats.
*
* FT_LOAD_FORCE_AUTOHINT ::
* Prefer the auto-hinter over the font's native hinter. See also the
* note below.
*
* FT_LOAD_PEDANTIC ::
* Make the font driver perform pedantic verifications during glyph
* loading and hinting. This is mostly used to detect broken glyphs in
* fonts. By default, FreeType tries to handle broken fonts also.
*
* In particular, errors from the TrueType bytecode engine are not
* passed to the application if this flag is not set; this might result
* in partially hinted or distorted glyphs in case a glyph's bytecode
* is buggy.
*
* FT_LOAD_NO_RECURSE ::
* Don't load composite glyphs recursively. Instead, the font driver
* fills the `num_subglyph` and `subglyphs` values of the glyph slot;
* it also sets `glyph->format` to @FT_GLYPH_FORMAT_COMPOSITE. The
* description of subglyphs can then be accessed with
* @FT_Get_SubGlyph_Info.
*
* Don't use this flag for retrieving metrics information since some
* font drivers only return rudimentary data.
*
* This flag implies @FT_LOAD_NO_SCALE and @FT_LOAD_IGNORE_TRANSFORM.
*
* FT_LOAD_IGNORE_TRANSFORM ::
* Ignore the transform matrix set by @FT_Set_Transform.
*
* FT_LOAD_MONOCHROME ::
* This flag is used with @FT_LOAD_RENDER to indicate that you want to
* render an outline glyph to a 1-bit monochrome bitmap glyph, with
* 8~pixels packed into each byte of the bitmap data.
*
* Note that this has no effect on the hinting algorithm used. You
* should rather use @FT_LOAD_TARGET_MONO so that the
* monochrome-optimized hinting algorithm is used.
*
* FT_LOAD_LINEAR_DESIGN ::
* Keep `linearHoriAdvance` and `linearVertAdvance` fields of
* @FT_GlyphSlotRec in font units. See @FT_GlyphSlotRec for details.
*
* FT_LOAD_NO_AUTOHINT ::
* Disable the auto-hinter. See also the note below.
*
* FT_LOAD_COLOR ::
* Load colored glyphs. FreeType searches in the following order;
* there are slight differences depending on the font format.
*
* [Since 2.5] Load embedded color bitmap images (provided
* @FT_LOAD_NO_BITMAP is not set). The resulting color bitmaps, if
* available, have the @FT_PIXEL_MODE_BGRA format, with pre-multiplied
* color channels. If the flag is not set and color bitmaps are found,
* they are converted to 256-level gray bitmaps, using the
* @FT_PIXEL_MODE_GRAY format.
*
* [Since 2.12] If the glyph index maps to an entry in the face's
* 'SVG~' table, load the associated SVG document from this table and
* set the `format` field of @FT_GlyphSlotRec to @FT_GLYPH_FORMAT_SVG.
* Note that FreeType itself can't render SVG documents; however, the
* library provides hooks to seamlessly integrate an external renderer.
* See sections @ot_svg_driver and @svg_fonts for more.
*
* [Since 2.10, experimental] If the glyph index maps to an entry in
* the face's 'COLR' table with a 'CPAL' palette table (as defined in
* the OpenType specification), make @FT_Render_Glyph provide a default
* blending of the color glyph layers associated with the glyph index,
* using the same bitmap format as embedded color bitmap images. This
* is mainly for convenience and works only for glyphs in 'COLR' v0
* tables (or glyphs in 'COLR' v1 tables that exclusively use v0
* features). For full control of color layers use
* @FT_Get_Color_Glyph_Layer and FreeType's color functions like
* @FT_Palette_Select instead of setting @FT_LOAD_COLOR for rendering
* so that the client application can handle blending by itself.
*
* FT_LOAD_COMPUTE_METRICS ::
* [Since 2.6.1] Compute glyph metrics from the glyph data, without the
* use of bundled metrics tables (for example, the 'hdmx' table in
* TrueType fonts). This flag is mainly used by font validating or
* font editing applications, which need to ignore, verify, or edit
* those tables.
*
* Currently, this flag is only implemented for TrueType fonts.
*
* FT_LOAD_BITMAP_METRICS_ONLY ::
* [Since 2.7.1] Request loading of the metrics and bitmap image
* information of a (possibly embedded) bitmap glyph without allocating
* or copying the bitmap image data itself. No effect if the target
* glyph is not a bitmap image.
*
* This flag unsets @FT_LOAD_RENDER.
*
* FT_LOAD_CROP_BITMAP ::
* Ignored. Deprecated.
*
* FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ::
* Ignored. Deprecated.
*
* @note:
* By default, hinting is enabled and the font's native hinter (see
* @FT_FACE_FLAG_HINTER) is preferred over the auto-hinter. You can
* disable hinting by setting @FT_LOAD_NO_HINTING or change the
* precedence by setting @FT_LOAD_FORCE_AUTOHINT. You can also set
* @FT_LOAD_NO_AUTOHINT in case you don't want the auto-hinter to be used
* at all.
*
* See the description of @FT_FACE_FLAG_TRICKY for a special exception
* (affecting only a handful of Asian fonts).
*
* Besides deciding which hinter to use, you can also decide which
* hinting algorithm to use. See @FT_LOAD_TARGET_XXX for details.
*
* Note that the auto-hinter needs a valid Unicode cmap (either a native
* one or synthesized by FreeType) for producing correct results. If a
* font provides an incorrect mapping (for example, assigning the
* character code U+005A, LATIN CAPITAL LETTER~Z, to a glyph depicting a
* mathematical integral sign), the auto-hinter might produce useless
* results.
*
*/
#define FT_LOAD_DEFAULT 0x0
#define FT_LOAD_NO_SCALE ( 1L << 0 )
#define FT_LOAD_NO_HINTING ( 1L << 1 )
#define FT_LOAD_RENDER ( 1L << 2 )
#define FT_LOAD_NO_BITMAP ( 1L << 3 )
#define FT_LOAD_VERTICAL_LAYOUT ( 1L << 4 )
#define FT_LOAD_FORCE_AUTOHINT ( 1L << 5 )
#define FT_LOAD_CROP_BITMAP ( 1L << 6 )
#define FT_LOAD_PEDANTIC ( 1L << 7 )
#define FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ( 1L << 9 )
#define FT_LOAD_NO_RECURSE ( 1L << 10 )
#define FT_LOAD_IGNORE_TRANSFORM ( 1L << 11 )
#define FT_LOAD_MONOCHROME ( 1L << 12 )
#define FT_LOAD_LINEAR_DESIGN ( 1L << 13 )
#define FT_LOAD_SBITS_ONLY ( 1L << 14 )
#define FT_LOAD_NO_AUTOHINT ( 1L << 15 )
/* Bits 16-19 are used by `FT_LOAD_TARGET_` */
#define FT_LOAD_COLOR ( 1L << 20 )
#define FT_LOAD_COMPUTE_METRICS ( 1L << 21 )
#define FT_LOAD_BITMAP_METRICS_ONLY ( 1L << 22 )
/* */
/* used internally only by certain font drivers */
#define FT_LOAD_ADVANCE_ONLY ( 1L << 8 )
#define FT_LOAD_SVG_ONLY ( 1L << 23 )
/**************************************************************************
*
* @enum:
* FT_LOAD_TARGET_XXX
*
* @description:
* A list of values to select a specific hinting algorithm for the
* hinter. You should OR one of these values to your `load_flags` when
* calling @FT_Load_Glyph.
*
* Note that a font's native hinters may ignore the hinting algorithm you
* have specified (e.g., the TrueType bytecode interpreter). You can set
* @FT_LOAD_FORCE_AUTOHINT to ensure that the auto-hinter is used.
*
* @values:
* FT_LOAD_TARGET_NORMAL ::
* The default hinting algorithm, optimized for standard gray-level
* rendering. For monochrome output, use @FT_LOAD_TARGET_MONO instead.
*
* FT_LOAD_TARGET_LIGHT ::
* A lighter hinting algorithm for gray-level modes. Many generated
* glyphs are fuzzier but better resemble their original shape. This
* is achieved by snapping glyphs to the pixel grid only vertically
* (Y-axis), as is done by FreeType's new CFF engine or Microsoft's
* ClearType font renderer. This preserves inter-glyph spacing in
* horizontal text. The snapping is done either by the native font
* driver, if the driver itself and the font support it, or by the
* auto-hinter.
*
* Advance widths are rounded to integer values; however, using the
* `lsb_delta` and `rsb_delta` fields of @FT_GlyphSlotRec, it is
* possible to get fractional advance widths for subpixel positioning
* (which is recommended to use).
*
* If configuration option `AF_CONFIG_OPTION_TT_SIZE_METRICS` is
* active, TrueType-like metrics are used to make this mode behave
* similarly as in unpatched FreeType versions between 2.4.6 and 2.7.1
* (inclusive).
*
* FT_LOAD_TARGET_MONO ::
* Strong hinting algorithm that should only be used for monochrome
* output. The result is probably unpleasant if the glyph is rendered
* in non-monochrome modes.
*
* Note that for outline fonts only the TrueType font driver has proper
* monochrome hinting support, provided the TTFs contain hints for B/W
* rendering (which most fonts no longer provide). If these conditions
* are not met it is very likely that you get ugly results at smaller
* sizes.
*
* FT_LOAD_TARGET_LCD ::
* A variant of @FT_LOAD_TARGET_LIGHT optimized for horizontally
* decimated LCD displays.
*
* FT_LOAD_TARGET_LCD_V ::
* A variant of @FT_LOAD_TARGET_NORMAL optimized for vertically
* decimated LCD displays.
*
* @note:
* You should use only _one_ of the `FT_LOAD_TARGET_XXX` values in your
* `load_flags`. They can't be ORed.
*
* If @FT_LOAD_RENDER is also set, the glyph is rendered in the
* corresponding mode (i.e., the mode that matches the used algorithm
* best). An exception is `FT_LOAD_TARGET_MONO` since it implies
* @FT_LOAD_MONOCHROME.
*
* You can use a hinting algorithm that doesn't correspond to the same
* rendering mode. As an example, it is possible to use the 'light'
* hinting algorithm and have the results rendered in horizontal LCD
* pixel mode, with code like
*
* ```
* FT_Load_Glyph( face, glyph_index,
* load_flags | FT_LOAD_TARGET_LIGHT );
*
* FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
* ```
*
* In general, you should stick with one rendering mode. For example,
* switching between @FT_LOAD_TARGET_NORMAL and @FT_LOAD_TARGET_MONO
* enforces a lot of recomputation for TrueType fonts, which is slow.
* Another reason is caching: Selecting a different mode usually causes
* changes in both the outlines and the rasterized bitmaps; it is thus
* necessary to empty the cache after a mode switch to avoid false hits.
*
*/
#define FT_LOAD_TARGET_( x ) ( FT_STATIC_CAST( FT_Int32, (x) & 15 ) << 16 )
#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL )
#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT )
#define FT_LOAD_TARGET_MONO FT_LOAD_TARGET_( FT_RENDER_MODE_MONO )
#define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD )
#define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V )
/**************************************************************************
*
* @macro:
* FT_LOAD_TARGET_MODE
*
* @description:
* Return the @FT_Render_Mode corresponding to a given
* @FT_LOAD_TARGET_XXX value.
*
*/
#define FT_LOAD_TARGET_MODE( x ) \
FT_STATIC_CAST( FT_Render_Mode, ( (x) >> 16 ) & 15 )
/**************************************************************************
*
* @function:
* FT_Set_Transform
*
* @description:
* Set the transformation that is applied to glyph images when they are
* loaded into a glyph slot through @FT_Load_Glyph.
*
* @inout:
* face ::
* A handle to the source face object.
*
* @input:
* matrix ::
* A pointer to the transformation's 2x2 matrix. Use `NULL` for the
* identity matrix.
* delta ::
* A pointer to the translation vector. Use `NULL` for the null
* vector.
*
* @note:
* This function is provided as a convenience, but keep in mind that
* @FT_Matrix coefficients are only 16.16 fixed-point values, which can
* limit the accuracy of the results. Using floating-point computations
* to perform the transform directly in client code instead will always
* yield better numbers.
*
* The transformation is only applied to scalable image formats after the
* glyph has been loaded. It means that hinting is unaltered by the
* transformation and is performed on the character size given in the
* last call to @FT_Set_Char_Size or @FT_Set_Pixel_Sizes.
*
* Note that this also transforms the `face.glyph.advance` field, but
* **not** the values in `face.glyph.metrics`.
*/
FT_EXPORT( void )
FT_Set_Transform( FT_Face face,
FT_Matrix* matrix,
FT_Vector* delta );
/**************************************************************************
*
* @function:
* FT_Get_Transform
*
* @description:
* Return the transformation that is applied to glyph images when they
* are loaded into a glyph slot through @FT_Load_Glyph. See
* @FT_Set_Transform for more details.
*
* @input:
* face ::
* A handle to the source face object.
*
* @output:
* matrix ::
* A pointer to a transformation's 2x2 matrix. Set this to NULL if you
* are not interested in the value.
*
* delta ::
* A pointer a translation vector. Set this to NULL if you are not
* interested in the value.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Get_Transform( FT_Face face,
FT_Matrix* matrix,
FT_Vector* delta );
/**************************************************************************
*
* @enum:
* FT_Render_Mode
*
* @description:
* Render modes supported by FreeType~2. Each mode corresponds to a
* specific type of scanline conversion performed on the outline.
*
* For bitmap fonts and embedded bitmaps the `bitmap->pixel_mode` field
* in the @FT_GlyphSlotRec structure gives the format of the returned
* bitmap.
*
* All modes except @FT_RENDER_MODE_MONO use 256 levels of opacity,
* indicating pixel coverage. Use linear alpha blending and gamma
* correction to correctly render non-monochrome glyph bitmaps onto a
* surface; see @FT_Render_Glyph.
*
* The @FT_RENDER_MODE_SDF is a special render mode that uses up to 256
* distance values, indicating the signed distance from the grid position
* to the nearest outline.
*
* @values:
* FT_RENDER_MODE_NORMAL ::
* Default render mode; it corresponds to 8-bit anti-aliased bitmaps.
*
* FT_RENDER_MODE_LIGHT ::
* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only defined as
* a separate value because render modes are also used indirectly to
* define hinting algorithm selectors. See @FT_LOAD_TARGET_XXX for
* details.
*
* FT_RENDER_MODE_MONO ::
* This mode corresponds to 1-bit bitmaps (with 2~levels of opacity).
*
* FT_RENDER_MODE_LCD ::
* This mode corresponds to horizontal RGB and BGR subpixel displays
* like LCD screens. It produces 8-bit bitmaps that are 3~times the
* width of the original glyph outline in pixels, and which use the
* @FT_PIXEL_MODE_LCD mode.
*
* FT_RENDER_MODE_LCD_V ::
* This mode corresponds to vertical RGB and BGR subpixel displays
* (like PDA screens, rotated LCD displays, etc.). It produces 8-bit
* bitmaps that are 3~times the height of the original glyph outline in
* pixels and use the @FT_PIXEL_MODE_LCD_V mode.
*
* FT_RENDER_MODE_SDF ::
* This mode corresponds to 8-bit, single-channel signed distance field
* (SDF) bitmaps. Each pixel in the SDF grid is the value from the
* pixel's position to the nearest glyph's outline. The distances are
* calculated from the center of the pixel and are positive if they are
* filled by the outline (i.e., inside the outline) and negative
* otherwise. Check the note below on how to convert the output values
* to usable data.
*
* @note:
* The selected render mode only affects vector glyphs of a font.
* Embedded bitmaps often have a different pixel mode like
* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform them
* into 8-bit pixmaps.
*
* For @FT_RENDER_MODE_SDF the output bitmap buffer contains normalized
* distances that are packed into unsigned 8-bit values. To get pixel
* values in floating point representation use the following pseudo-C
* code for the conversion.
*
* ```
* // Load glyph and render using FT_RENDER_MODE_SDF,
* // then use the output buffer as follows.
*
* ...
* FT_Byte buffer = glyph->bitmap->buffer;
*
*
* for pixel in buffer
* {
* // `sd` is the signed distance and `spread` is the current spread;
* // the default spread is 2 and can be changed.
*
* float sd = (float)pixel - 128.0f;
*
*
* // Convert to pixel values.
* sd = ( sd / 128.0f ) * spread;
*
* // Store `sd` in a buffer or use as required.
* }
*
* ```
*
* FreeType has two rasterizers for generating SDF, namely:
*
* 1. `sdf` for generating SDF directly from glyph's outline, and
*
* 2. `bsdf` for generating SDF from rasterized bitmaps.
*
* Depending on the glyph type (i.e., outline or bitmap), one of the two
* rasterizers is chosen at runtime and used for generating SDFs. To
* force the use of `bsdf` you should render the glyph with any of the
* FreeType's other rendering modes (e.g., `FT_RENDER_MODE_NORMAL`) and
* then re-render with `FT_RENDER_MODE_SDF`.
*
* There are some issues with stability and possible failures of the SDF
* renderers (specifically `sdf`).
*
* 1. The `sdf` rasterizer is sensitive to really small features (e.g.,
* sharp turns that are less than 1~pixel) and imperfections in the
* glyph's outline, causing artifacts in the final output.
*
* 2. The `sdf` rasterizer has limited support for handling intersecting
* contours and *cannot* handle self-intersecting contours whatsoever.
* Self-intersection happens when a single connected contour intersect
* itself at some point; having these in your font definitely pose a
* problem to the rasterizer and cause artifacts, too.
*
* 3. Generating SDF for really small glyphs may result in undesirable
* output; the pixel grid (which stores distance information) becomes
* too coarse.
*
* 4. Since the output buffer is normalized, precision at smaller spreads
* is greater than precision at larger spread values because the
* output range of [0..255] gets mapped to a smaller SDF range. A
* spread of~2 should be sufficient in most cases.
*
* Points (1) and (2) can be avoided by using the `bsdf` rasterizer,
* which is more stable than the `sdf` rasterizer in general.
*
*/
typedef enum FT_Render_Mode_
{
FT_RENDER_MODE_NORMAL = 0,
FT_RENDER_MODE_LIGHT,
FT_RENDER_MODE_MONO,
FT_RENDER_MODE_LCD,
FT_RENDER_MODE_LCD_V,
FT_RENDER_MODE_SDF,
FT_RENDER_MODE_MAX
} FT_Render_Mode;
/* these constants are deprecated; use the corresponding */
/* `FT_Render_Mode` values instead */
#define ft_render_mode_normal FT_RENDER_MODE_NORMAL
#define ft_render_mode_mono FT_RENDER_MODE_MONO
/**************************************************************************
*
* @function:
* FT_Render_Glyph
*
* @description:
* Convert a given glyph image to a bitmap. It does so by inspecting the
* glyph image format, finding the relevant renderer, and invoking it.
*
* @inout:
* slot ::
* A handle to the glyph slot containing the image to convert.
*
* @input:
* render_mode ::
* The render mode used to render the glyph image into a bitmap. See
* @FT_Render_Mode for a list of possible values.
*
* If @FT_RENDER_MODE_NORMAL is used, a previous call of @FT_Load_Glyph
* with flag @FT_LOAD_COLOR makes `FT_Render_Glyph` provide a default
* blending of colored glyph layers associated with the current glyph
* slot (provided the font contains such layers) instead of rendering
* the glyph slot's outline. This is an experimental feature; see
* @FT_LOAD_COLOR for more information.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* When FreeType outputs a bitmap of a glyph, it really outputs an alpha
* coverage map. If a pixel is completely covered by a filled-in
* outline, the bitmap contains 0xFF at that pixel, meaning that
* 0xFF/0xFF fraction of that pixel is covered, meaning the pixel is 100%
* black (or 0% bright). If a pixel is only 50% covered (value 0x80),
* the pixel is made 50% black (50% bright or a middle shade of grey).
* 0% covered means 0% black (100% bright or white).
*
* On high-DPI screens like on smartphones and tablets, the pixels are so
* small that their chance of being completely covered and therefore
* completely black are fairly good. On the low-DPI screens, however,
* the situation is different. The pixels are too large for most of the
* details of a glyph and shades of gray are the norm rather than the
* exception.
*
* This is relevant because all our screens have a second problem: they
* are not linear. 1~+~1 is not~2. Twice the value does not result in
* twice the brightness. When a pixel is only 50% covered, the coverage
* map says 50% black, and this translates to a pixel value of 128 when
* you use 8~bits per channel (0-255). However, this does not translate
* to 50% brightness for that pixel on our sRGB and gamma~2.2 screens.
* Due to their non-linearity, they dwell longer in the darks and only a
* pixel value of about 186 results in 50% brightness -- 128 ends up too
* dark on both bright and dark backgrounds. The net result is that dark
* text looks burnt-out, pixely and blotchy on bright background, bright
* text too frail on dark backgrounds, and colored text on colored
* background (for example, red on green) seems to have dark halos or
* 'dirt' around it. The situation is especially ugly for diagonal stems
* like in 'w' glyph shapes where the quality of FreeType's anti-aliasing
* depends on the correct display of grays. On high-DPI screens where
* smaller, fully black pixels reign supreme, this doesn't matter, but on
* our low-DPI screens with all the gray shades, it does. 0% and 100%
* brightness are the same things in linear and non-linear space, just
* all the shades in-between aren't.
*
* The blending function for placing text over a background is
*
* ```
* dst = alpha * src + (1 - alpha) * dst ,
* ```
*
* which is known as the OVER operator.
*
* To correctly composite an anti-aliased pixel of a glyph onto a
* surface,
*
* 1. take the foreground and background colors (e.g., in sRGB space)
* and apply gamma to get them in a linear space,
*
* 2. use OVER to blend the two linear colors using the glyph pixel
* as the alpha value (remember, the glyph bitmap is an alpha coverage
* bitmap), and
*
* 3. apply inverse gamma to the blended pixel and write it back to
* the image.
*
* Internal testing at Adobe found that a target inverse gamma of~1.8 for
* step~3 gives good results across a wide range of displays with an sRGB
* gamma curve or a similar one.
*
* This process can cost performance. There is an approximation that
* does not need to know about the background color; see
* https://bel.fi/alankila/lcd/ and
* https://bel.fi/alankila/lcd/alpcor.html for details.
*
* **ATTENTION**: Linear blending is even more important when dealing
* with subpixel-rendered glyphs to prevent color-fringing! A
* subpixel-rendered glyph must first be filtered with a filter that
* gives equal weight to the three color primaries and does not exceed a
* sum of 0x100, see section @lcd_rendering. Then the only difference to
* gray linear blending is that subpixel-rendered linear blending is done
* 3~times per pixel: red foreground subpixel to red background subpixel
* and so on for green and blue.
*/
FT_EXPORT( FT_Error )
FT_Render_Glyph( FT_GlyphSlot slot,
FT_Render_Mode render_mode );
/**************************************************************************
*
* @enum:
* FT_Kerning_Mode
*
* @description:
* An enumeration to specify the format of kerning values returned by
* @FT_Get_Kerning.
*
* @values:
* FT_KERNING_DEFAULT ::
* Return grid-fitted kerning distances in 26.6 fractional pixels.
*
* FT_KERNING_UNFITTED ::
* Return un-grid-fitted kerning distances in 26.6 fractional pixels.
*
* FT_KERNING_UNSCALED ::
* Return the kerning vector in original font units.
*
* @note:
* `FT_KERNING_DEFAULT` returns full pixel values; it also makes FreeType
* heuristically scale down kerning distances at small ppem values so
* that they don't become too big.
*
* Both `FT_KERNING_DEFAULT` and `FT_KERNING_UNFITTED` use the current
* horizontal scaling factor (as set e.g. with @FT_Set_Char_Size) to
* convert font units to pixels.
*/
typedef enum FT_Kerning_Mode_
{
FT_KERNING_DEFAULT = 0,
FT_KERNING_UNFITTED,
FT_KERNING_UNSCALED
} FT_Kerning_Mode;
/* these constants are deprecated; use the corresponding */
/* `FT_Kerning_Mode` values instead */
#define ft_kerning_default FT_KERNING_DEFAULT
#define ft_kerning_unfitted FT_KERNING_UNFITTED
#define ft_kerning_unscaled FT_KERNING_UNSCALED
/**************************************************************************
*
* @function:
* FT_Get_Kerning
*
* @description:
* Return the kerning vector between two glyphs of the same face.
*
* @input:
* face ::
* A handle to a source face object.
*
* left_glyph ::
* The index of the left glyph in the kern pair.
*
* right_glyph ::
* The index of the right glyph in the kern pair.
*
* kern_mode ::
* See @FT_Kerning_Mode for more information. Determines the scale and
* dimension of the returned kerning vector.
*
* @output:
* akerning ::
* The kerning vector. This is either in font units, fractional pixels
* (26.6 format), or pixels for scalable formats, and in pixels for
* fixed-sizes formats.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Only horizontal layouts (left-to-right & right-to-left) are supported
* by this method. Other layouts, or more sophisticated kernings, are
* out of the scope of this API function -- they can be implemented
* through format-specific interfaces.
*
* Kerning for OpenType fonts implemented in a 'GPOS' table is not
* supported; use @FT_HAS_KERNING to find out whether a font has data
* that can be extracted with `FT_Get_Kerning`.
*/
FT_EXPORT( FT_Error )
FT_Get_Kerning( FT_Face face,
FT_UInt left_glyph,
FT_UInt right_glyph,
FT_UInt kern_mode,
FT_Vector *akerning );
/**************************************************************************
*
* @function:
* FT_Get_Track_Kerning
*
* @description:
* Return the track kerning for a given face object at a given size.
*
* @input:
* face ::
* A handle to a source face object.
*
* point_size ::
* The point size in 16.16 fractional points.
*
* degree ::
* The degree of tightness. Increasingly negative values represent
* tighter track kerning, while increasingly positive values represent
* looser track kerning. Value zero means no track kerning.
*
* @output:
* akerning ::
* The kerning in 16.16 fractional points, to be uniformly applied
* between all glyphs.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Currently, only the Type~1 font driver supports track kerning, using
* data from AFM files (if attached with @FT_Attach_File or
* @FT_Attach_Stream).
*
* Only very few AFM files come with track kerning data; please refer to
* Adobe's AFM specification for more details.
*/
FT_EXPORT( FT_Error )
FT_Get_Track_Kerning( FT_Face face,
FT_Fixed point_size,
FT_Int degree,
FT_Fixed* akerning );
/**************************************************************************
*
* @function:
* FT_Get_Glyph_Name
*
* @description:
* Retrieve the ASCII name of a given glyph in a face. This only works
* for those faces where @FT_HAS_GLYPH_NAMES(face) returns~1.
*
* @input:
* face ::
* A handle to a source face object.
*
* glyph_index ::
* The glyph index.
*
* buffer_max ::
* The maximum number of bytes available in the buffer.
*
* @output:
* buffer ::
* A pointer to a target buffer where the name is copied to.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An error is returned if the face doesn't provide glyph names or if the
* glyph index is invalid. In all cases of failure, the first byte of
* `buffer` is set to~0 to indicate an empty name.
*
* The glyph name is truncated to fit within the buffer if it is too
* long. The returned string is always zero-terminated.
*
* Be aware that FreeType reorders glyph indices internally so that glyph
* index~0 always corresponds to the 'missing glyph' (called '.notdef').
*
* This function always returns an error if the config macro
* `FT_CONFIG_OPTION_NO_GLYPH_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_Error )
FT_Get_Glyph_Name( FT_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max );
/**************************************************************************
*
* @function:
* FT_Get_Postscript_Name
*
* @description:
* Retrieve the ASCII PostScript name of a given face, if available.
* This only works with PostScript, TrueType, and OpenType fonts.
*
* @input:
* face ::
* A handle to the source face object.
*
* @return:
* A pointer to the face's PostScript name. `NULL` if unavailable.
*
* @note:
* The returned pointer is owned by the face and is destroyed with it.
*
* For variation fonts, this string changes if you select a different
* instance, and you have to call `FT_Get_PostScript_Name` again to
* retrieve it. FreeType follows Adobe TechNote #5902, 'Generating
* PostScript Names for Fonts Using OpenType Font Variations'.
*
* https://download.macromedia.com/pub/developer/opentype/tech-notes/5902.AdobePSNameGeneration.html
*
* [Since 2.9] Special PostScript names for named instances are only
* returned if the named instance is set with @FT_Set_Named_Instance (and
* the font has corresponding entries in its 'fvar' table). If
* @FT_IS_VARIATION returns true, the algorithmically derived PostScript
* name is provided, not looking up special entries for named instances.
*/
FT_EXPORT( const char* )
FT_Get_Postscript_Name( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Select_Charmap
*
* @description:
* Select a given charmap by its encoding tag (as listed in
* `freetype.h`).
*
* @inout:
* face ::
* A handle to the source face object.
*
* @input:
* encoding ::
* A handle to the selected encoding.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function returns an error if no charmap in the face corresponds
* to the encoding queried here.
*
* Because many fonts contain more than a single cmap for Unicode
* encoding, this function has some special code to select the one that
* covers Unicode best ('best' in the sense that a UCS-4 cmap is
* preferred to a UCS-2 cmap). It is thus preferable to @FT_Set_Charmap
* in this case.
*/
FT_EXPORT( FT_Error )
FT_Select_Charmap( FT_Face face,
FT_Encoding encoding );
/**************************************************************************
*
* @function:
* FT_Set_Charmap
*
* @description:
* Select a given charmap for character code to glyph index mapping.
*
* @inout:
* face ::
* A handle to the source face object.
*
* @input:
* charmap ::
* A handle to the selected charmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function returns an error if the charmap is not part of the face
* (i.e., if it is not listed in the `face->charmaps` table).
*
* It also fails if an OpenType type~14 charmap is selected (which
* doesn't map character codes to glyph indices at all).
*/
FT_EXPORT( FT_Error )
FT_Set_Charmap( FT_Face face,
FT_CharMap charmap );
/**************************************************************************
*
* @function:
* FT_Get_Charmap_Index
*
* @description:
* Retrieve index of a given charmap.
*
* @input:
* charmap ::
* A handle to a charmap.
*
* @return:
* The index into the array of character maps within the face to which
* `charmap` belongs. If an error occurs, -1 is returned.
*
*/
FT_EXPORT( FT_Int )
FT_Get_Charmap_Index( FT_CharMap charmap );
/**************************************************************************
*
* @function:
* FT_Get_Char_Index
*
* @description:
* Return the glyph index of a given character code. This function uses
* the currently selected charmap to do the mapping.
*
* @input:
* face ::
* A handle to the source face object.
*
* charcode ::
* The character code.
*
* @return:
* The glyph index. 0~means 'undefined character code'.
*
* @note:
* If you use FreeType to manipulate the contents of font files directly,
* be aware that the glyph index returned by this function doesn't always
* correspond to the internal indices used within the file. This is done
* to ensure that value~0 always corresponds to the 'missing glyph'. If
* the first glyph is not named '.notdef', then for Type~1 and Type~42
* fonts, '.notdef' will be moved into the glyph ID~0 position, and
* whatever was there will be moved to the position '.notdef' had. For
* Type~1 fonts, if there is no '.notdef' glyph at all, then one will be
* created at index~0 and whatever was there will be moved to the last
* index -- Type~42 fonts are considered invalid under this condition.
*/
FT_EXPORT( FT_UInt )
FT_Get_Char_Index( FT_Face face,
FT_ULong charcode );
/**************************************************************************
*
* @function:
* FT_Get_First_Char
*
* @description:
* Return the first character code in the current charmap of a given
* face, together with its corresponding glyph index.
*
* @input:
* face ::
* A handle to the source face object.
*
* @output:
* agindex ::
* Glyph index of first character code. 0~if charmap is empty.
*
* @return:
* The charmap's first character code.
*
* @note:
* You should use this function together with @FT_Get_Next_Char to parse
* all character codes available in a given charmap. The code should
* look like this:
*
* ```
* FT_ULong charcode;
* FT_UInt gindex;
*
*
* charcode = FT_Get_First_Char( face, &gindex );
* while ( gindex != 0 )
* {
* ... do something with (charcode,gindex) pair ...
*
* charcode = FT_Get_Next_Char( face, charcode, &gindex );
* }
* ```
*
* Be aware that character codes can have values up to 0xFFFFFFFF; this
* might happen for non-Unicode or malformed cmaps. However, even with
* regular Unicode encoding, so-called 'last resort fonts' (using SFNT
* cmap format 13, see function @FT_Get_CMap_Format) normally have
* entries for all Unicode characters up to 0x1FFFFF, which can cause *a
* lot* of iterations.
*
* Note that `*agindex` is set to~0 if the charmap is empty. The result
* itself can be~0 in two cases: if the charmap is empty or if the
* value~0 is the first valid character code.
*/
FT_EXPORT( FT_ULong )
FT_Get_First_Char( FT_Face face,
FT_UInt *agindex );
/**************************************************************************
*
* @function:
* FT_Get_Next_Char
*
* @description:
* Return the next character code in the current charmap of a given face
* following the value `char_code`, as well as the corresponding glyph
* index.
*
* @input:
* face ::
* A handle to the source face object.
*
* char_code ::
* The starting character code.
*
* @output:
* agindex ::
* Glyph index of next character code. 0~if charmap is empty.
*
* @return:
* The charmap's next character code.
*
* @note:
* You should use this function with @FT_Get_First_Char to walk over all
* character codes available in a given charmap. See the note for that
* function for a simple code example.
*
* Note that `*agindex` is set to~0 when there are no more codes in the
* charmap.
*/
FT_EXPORT( FT_ULong )
FT_Get_Next_Char( FT_Face face,
FT_ULong char_code,
FT_UInt *agindex );
/**************************************************************************
*
* @function:
* FT_Face_Properties
*
* @description:
* Set or override certain (library or module-wide) properties on a
* face-by-face basis. Useful for finer-grained control and avoiding
* locks on shared structures (threads can modify their own faces as they
* see fit).
*
* Contrary to @FT_Property_Set, this function uses @FT_Parameter so that
* you can pass multiple properties to the target face in one call. Note
* that only a subset of the available properties can be controlled.
*
* * @FT_PARAM_TAG_STEM_DARKENING (stem darkening, corresponding to the
* property `no-stem-darkening` provided by the 'autofit', 'cff',
* 'type1', and 't1cid' modules; see @no-stem-darkening).
*
* * @FT_PARAM_TAG_LCD_FILTER_WEIGHTS (LCD filter weights, corresponding
* to function @FT_Library_SetLcdFilterWeights).
*
* * @FT_PARAM_TAG_RANDOM_SEED (seed value for the CFF, Type~1, and CID
* 'random' operator, corresponding to the `random-seed` property
* provided by the 'cff', 'type1', and 't1cid' modules; see
* @random-seed).
*
* Pass `NULL` as `data` in @FT_Parameter for a given tag to reset the
* option and use the library or module default again.
*
* @input:
* face ::
* A handle to the source face object.
*
* num_properties ::
* The number of properties that follow.
*
* properties ::
* A handle to an @FT_Parameter array with `num_properties` elements.
*
* @return:
* FreeType error code. 0~means success.
*
* @example:
* Here is an example that sets three properties. You must define
* `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` to make the LCD filter examples
* work.
*
* ```
* FT_Parameter property1;
* FT_Bool darken_stems = 1;
*
* FT_Parameter property2;
* FT_LcdFiveTapFilter custom_weight =
* { 0x11, 0x44, 0x56, 0x44, 0x11 };
*
* FT_Parameter property3;
* FT_Int32 random_seed = 314159265;
*
* FT_Parameter properties[3] = { property1,
* property2,
* property3 };
*
*
* property1.tag = FT_PARAM_TAG_STEM_DARKENING;
* property1.data = &darken_stems;
*
* property2.tag = FT_PARAM_TAG_LCD_FILTER_WEIGHTS;
* property2.data = custom_weight;
*
* property3.tag = FT_PARAM_TAG_RANDOM_SEED;
* property3.data = &random_seed;
*
* FT_Face_Properties( face, 3, properties );
* ```
*
* The next example resets a single property to its default value.
*
* ```
* FT_Parameter property;
*
*
* property.tag = FT_PARAM_TAG_LCD_FILTER_WEIGHTS;
* property.data = NULL;
*
* FT_Face_Properties( face, 1, &property );
* ```
*
* @since:
* 2.8
*
*/
FT_EXPORT( FT_Error )
FT_Face_Properties( FT_Face face,
FT_UInt num_properties,
FT_Parameter* properties );
/**************************************************************************
*
* @function:
* FT_Get_Name_Index
*
* @description:
* Return the glyph index of a given glyph name.
*
* @input:
* face ::
* A handle to the source face object.
*
* glyph_name ::
* The glyph name.
*
* @return:
* The glyph index. 0~means 'undefined character code'.
*/
FT_EXPORT( FT_UInt )
FT_Get_Name_Index( FT_Face face,
const FT_String* glyph_name );
/**************************************************************************
*
* @enum:
* FT_SUBGLYPH_FLAG_XXX
*
* @description:
* A list of constants describing subglyphs. Please refer to the 'glyf'
* table description in the OpenType specification for the meaning of the
* various flags (which get synthesized for non-OpenType subglyphs).
*
* https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description
*
* @values:
* FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS ::
* FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES ::
* FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID ::
* FT_SUBGLYPH_FLAG_SCALE ::
* FT_SUBGLYPH_FLAG_XY_SCALE ::
* FT_SUBGLYPH_FLAG_2X2 ::
* FT_SUBGLYPH_FLAG_USE_MY_METRICS ::
*
*/
#define FT_SUBGLYPH_FLAG_ARGS_ARE_WORDS 1
#define FT_SUBGLYPH_FLAG_ARGS_ARE_XY_VALUES 2
#define FT_SUBGLYPH_FLAG_ROUND_XY_TO_GRID 4
#define FT_SUBGLYPH_FLAG_SCALE 8
#define FT_SUBGLYPH_FLAG_XY_SCALE 0x40
#define FT_SUBGLYPH_FLAG_2X2 0x80
#define FT_SUBGLYPH_FLAG_USE_MY_METRICS 0x200
/**************************************************************************
*
* @function:
* FT_Get_SubGlyph_Info
*
* @description:
* Retrieve a description of a given subglyph. Only use it if
* `glyph->format` is @FT_GLYPH_FORMAT_COMPOSITE; an error is returned
* otherwise.
*
* @input:
* glyph ::
* The source glyph slot.
*
* sub_index ::
* The index of the subglyph. Must be less than
* `glyph->num_subglyphs`.
*
* @output:
* p_index ::
* The glyph index of the subglyph.
*
* p_flags ::
* The subglyph flags, see @FT_SUBGLYPH_FLAG_XXX.
*
* p_arg1 ::
* The subglyph's first argument (if any).
*
* p_arg2 ::
* The subglyph's second argument (if any).
*
* p_transform ::
* The subglyph transformation (if any).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The values of `*p_arg1`, `*p_arg2`, and `*p_transform` must be
* interpreted depending on the flags returned in `*p_flags`. See the
* OpenType specification for details.
*
* https://docs.microsoft.com/en-us/typography/opentype/spec/glyf#composite-glyph-description
*
*/
FT_EXPORT( FT_Error )
FT_Get_SubGlyph_Info( FT_GlyphSlot glyph,
FT_UInt sub_index,
FT_Int *p_index,
FT_UInt *p_flags,
FT_Int *p_arg1,
FT_Int *p_arg2,
FT_Matrix *p_transform );
/**************************************************************************
*
* @section:
* base_interface
*
*/
/**************************************************************************
*
* @enum:
* FT_FSTYPE_XXX
*
* @description:
* A list of bit flags used in the `fsType` field of the OS/2 table in a
* TrueType or OpenType font and the `FSType` entry in a PostScript font.
* These bit flags are returned by @FT_Get_FSType_Flags; they inform
* client applications of embedding and subsetting restrictions
* associated with a font.
*
* See
* https://www.adobe.com/content/dam/Adobe/en/devnet/acrobat/pdfs/FontPolicies.pdf
* for more details.
*
* @values:
* FT_FSTYPE_INSTALLABLE_EMBEDDING ::
* Fonts with no fsType bit set may be embedded and permanently
* installed on the remote system by an application.
*
* FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING ::
* Fonts that have only this bit set must not be modified, embedded or
* exchanged in any manner without first obtaining permission of the
* font software copyright owner.
*
* FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING ::
* The font may be embedded and temporarily loaded on the remote
* system. Documents containing Preview & Print fonts must be opened
* 'read-only'; no edits can be applied to the document.
*
* FT_FSTYPE_EDITABLE_EMBEDDING ::
* The font may be embedded but must only be installed temporarily on
* other systems. In contrast to Preview & Print fonts, documents
* containing editable fonts may be opened for reading, editing is
* permitted, and changes may be saved.
*
* FT_FSTYPE_NO_SUBSETTING ::
* The font may not be subsetted prior to embedding.
*
* FT_FSTYPE_BITMAP_EMBEDDING_ONLY ::
* Only bitmaps contained in the font may be embedded; no outline data
* may be embedded. If there are no bitmaps available in the font,
* then the font is unembeddable.
*
* @note:
* The flags are ORed together, thus more than a single value can be
* returned.
*
* While the `fsType` flags can indicate that a font may be embedded, a
* license with the font vendor may be separately required to use the
* font in this way.
*/
#define FT_FSTYPE_INSTALLABLE_EMBEDDING 0x0000
#define FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING 0x0002
#define FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING 0x0004
#define FT_FSTYPE_EDITABLE_EMBEDDING 0x0008
#define FT_FSTYPE_NO_SUBSETTING 0x0100
#define FT_FSTYPE_BITMAP_EMBEDDING_ONLY 0x0200
/**************************************************************************
*
* @function:
* FT_Get_FSType_Flags
*
* @description:
* Return the `fsType` flags for a font.
*
* @input:
* face ::
* A handle to the source face object.
*
* @return:
* The `fsType` flags, see @FT_FSTYPE_XXX.
*
* @note:
* Use this function rather than directly reading the `fs_type` field in
* the @PS_FontInfoRec structure, which is only guaranteed to return the
* correct results for Type~1 fonts.
*
* @since:
* 2.3.8
*
*/
FT_EXPORT( FT_UShort )
FT_Get_FSType_Flags( FT_Face face );
/**************************************************************************
*
* @section:
* glyph_variants
*
* @title:
* Unicode Variation Sequences
*
* @abstract:
* The FreeType~2 interface to Unicode Variation Sequences (UVS), using
* the SFNT cmap format~14.
*
* @description:
* Many characters, especially for CJK scripts, have variant forms. They
* are a sort of grey area somewhere between being totally irrelevant and
* semantically distinct; for this reason, the Unicode consortium decided
* to introduce Variation Sequences (VS), consisting of a Unicode base
* character and a variation selector instead of further extending the
* already huge number of characters.
*
* Unicode maintains two different sets, namely 'Standardized Variation
* Sequences' and registered 'Ideographic Variation Sequences' (IVS),
* collected in the 'Ideographic Variation Database' (IVD).
*
* https://unicode.org/Public/UCD/latest/ucd/StandardizedVariants.txt
* https://unicode.org/reports/tr37/ https://unicode.org/ivd/
*
* To date (January 2017), the character with the most ideographic
* variations is U+9089, having 32 such IVS.
*
* Three Mongolian Variation Selectors have the values U+180B-U+180D; 256
* generic Variation Selectors are encoded in the ranges U+FE00-U+FE0F
* and U+E0100-U+E01EF. IVS currently use Variation Selectors from the
* range U+E0100-U+E01EF only.
*
* A VS consists of the base character value followed by a single
* Variation Selector. For example, to get the first variation of
* U+9089, you have to write the character sequence `U+9089 U+E0100`.
*
* Adobe and MS decided to support both standardized and ideographic VS
* with a new cmap subtable (format~14). It is an odd subtable because
* it is not a mapping of input code points to glyphs, but contains lists
* of all variations supported by the font.
*
* A variation may be either 'default' or 'non-default' for a given font.
* A default variation is the one you will get for that code point if you
* look it up in the standard Unicode cmap. A non-default variation is a
* different glyph.
*
*/
/**************************************************************************
*
* @function:
* FT_Face_GetCharVariantIndex
*
* @description:
* Return the glyph index of a given character code as modified by the
* variation selector.
*
* @input:
* face ::
* A handle to the source face object.
*
* charcode ::
* The character code point in Unicode.
*
* variantSelector ::
* The Unicode code point of the variation selector.
*
* @return:
* The glyph index. 0~means either 'undefined character code', or
* 'undefined selector code', or 'no variation selector cmap subtable',
* or 'current CharMap is not Unicode'.
*
* @note:
* If you use FreeType to manipulate the contents of font files directly,
* be aware that the glyph index returned by this function doesn't always
* correspond to the internal indices used within the file. This is done
* to ensure that value~0 always corresponds to the 'missing glyph'.
*
* This function is only meaningful if
* a) the font has a variation selector cmap sub table, and
* b) the current charmap has a Unicode encoding.
*
* @since:
* 2.3.6
*
*/
FT_EXPORT( FT_UInt )
FT_Face_GetCharVariantIndex( FT_Face face,
FT_ULong charcode,
FT_ULong variantSelector );
/**************************************************************************
*
* @function:
* FT_Face_GetCharVariantIsDefault
*
* @description:
* Check whether this variation of this Unicode character is the one to
* be found in the charmap.
*
* @input:
* face ::
* A handle to the source face object.
*
* charcode ::
* The character codepoint in Unicode.
*
* variantSelector ::
* The Unicode codepoint of the variation selector.
*
* @return:
* 1~if found in the standard (Unicode) cmap, 0~if found in the variation
* selector cmap, or -1 if it is not a variation.
*
* @note:
* This function is only meaningful if the font has a variation selector
* cmap subtable.
*
* @since:
* 2.3.6
*
*/
FT_EXPORT( FT_Int )
FT_Face_GetCharVariantIsDefault( FT_Face face,
FT_ULong charcode,
FT_ULong variantSelector );
/**************************************************************************
*
* @function:
* FT_Face_GetVariantSelectors
*
* @description:
* Return a zero-terminated list of Unicode variation selectors found in
* the font.
*
* @input:
* face ::
* A handle to the source face object.
*
* @return:
* A pointer to an array of selector code points, or `NULL` if there is
* no valid variation selector cmap subtable.
*
* @note:
* The last item in the array is~0; the array is owned by the @FT_Face
* object but can be overwritten or released on the next call to a
* FreeType function.
*
* @since:
* 2.3.6
*
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetVariantSelectors( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Face_GetVariantsOfChar
*
* @description:
* Return a zero-terminated list of Unicode variation selectors found for
* the specified character code.
*
* @input:
* face ::
* A handle to the source face object.
*
* charcode ::
* The character codepoint in Unicode.
*
* @return:
* A pointer to an array of variation selector code points that are
* active for the given character, or `NULL` if the corresponding list is
* empty.
*
* @note:
* The last item in the array is~0; the array is owned by the @FT_Face
* object but can be overwritten or released on the next call to a
* FreeType function.
*
* @since:
* 2.3.6
*
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetVariantsOfChar( FT_Face face,
FT_ULong charcode );
/**************************************************************************
*
* @function:
* FT_Face_GetCharsOfVariant
*
* @description:
* Return a zero-terminated list of Unicode character codes found for the
* specified variation selector.
*
* @input:
* face ::
* A handle to the source face object.
*
* variantSelector ::
* The variation selector code point in Unicode.
*
* @return:
* A list of all the code points that are specified by this selector
* (both default and non-default codes are returned) or `NULL` if there
* is no valid cmap or the variation selector is invalid.
*
* @note:
* The last item in the array is~0; the array is owned by the @FT_Face
* object but can be overwritten or released on the next call to a
* FreeType function.
*
* @since:
* 2.3.6
*
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetCharsOfVariant( FT_Face face,
FT_ULong variantSelector );
/**************************************************************************
*
* @section:
* computations
*
* @title:
* Computations
*
* @abstract:
* Crunching fixed numbers and vectors.
*
* @description:
* This section contains various functions used to perform computations
* on 16.16 fixed-float numbers or 2d vectors.
*
* **Attention**: Most arithmetic functions take `FT_Long` as arguments.
* For historical reasons, FreeType was designed under the assumption
* that `FT_Long` is a 32-bit integer; results can thus be undefined if
* the arguments don't fit into 32 bits.
*
* @order:
* FT_MulDiv
* FT_MulFix
* FT_DivFix
* FT_RoundFix
* FT_CeilFix
* FT_FloorFix
* FT_Vector_Transform
* FT_Matrix_Multiply
* FT_Matrix_Invert
*
*/
/**************************************************************************
*
* @function:
* FT_MulDiv
*
* @description:
* Compute `(a*b)/c` with maximum accuracy, using a 64-bit intermediate
* integer whenever necessary.
*
* This function isn't necessarily as fast as some processor-specific
* operations, but is at least completely portable.
*
* @input:
* a ::
* The first multiplier.
*
* b ::
* The second multiplier.
*
* c ::
* The divisor.
*
* @return:
* The result of `(a*b)/c`. This function never traps when trying to
* divide by zero; it simply returns 'MaxInt' or 'MinInt' depending on
* the signs of `a` and `b`.
*/
FT_EXPORT( FT_Long )
FT_MulDiv( FT_Long a,
FT_Long b,
FT_Long c );
/**************************************************************************
*
* @function:
* FT_MulFix
*
* @description:
* Compute `(a*b)/0x10000` with maximum accuracy. Its main use is to
* multiply a given value by a 16.16 fixed-point factor.
*
* @input:
* a ::
* The first multiplier.
*
* b ::
* The second multiplier. Use a 16.16 factor here whenever possible
* (see note below).
*
* @return:
* The result of `(a*b)/0x10000`.
*
* @note:
* This function has been optimized for the case where the absolute value
* of `a` is less than 2048, and `b` is a 16.16 scaling factor. As this
* happens mainly when scaling from notional units to fractional pixels
* in FreeType, it resulted in noticeable speed improvements between
* versions 2.x and 1.x.
*
* As a conclusion, always try to place a 16.16 factor as the _second_
* argument of this function; this can make a great difference.
*/
FT_EXPORT( FT_Long )
FT_MulFix( FT_Long a,
FT_Long b );
/**************************************************************************
*
* @function:
* FT_DivFix
*
* @description:
* Compute `(a*0x10000)/b` with maximum accuracy. Its main use is to
* divide a given value by a 16.16 fixed-point factor.
*
* @input:
* a ::
* The numerator.
*
* b ::
* The denominator. Use a 16.16 factor here.
*
* @return:
* The result of `(a*0x10000)/b`.
*/
FT_EXPORT( FT_Long )
FT_DivFix( FT_Long a,
FT_Long b );
/**************************************************************************
*
* @function:
* FT_RoundFix
*
* @description:
* Round a 16.16 fixed number.
*
* @input:
* a ::
* The number to be rounded.
*
* @return:
* `a` rounded to the nearest 16.16 fixed integer, halfway cases away
* from zero.
*
* @note:
* The function uses wrap-around arithmetic.
*/
FT_EXPORT( FT_Fixed )
FT_RoundFix( FT_Fixed a );
/**************************************************************************
*
* @function:
* FT_CeilFix
*
* @description:
* Compute the smallest following integer of a 16.16 fixed number.
*
* @input:
* a ::
* The number for which the ceiling function is to be computed.
*
* @return:
* `a` rounded towards plus infinity.
*
* @note:
* The function uses wrap-around arithmetic.
*/
FT_EXPORT( FT_Fixed )
FT_CeilFix( FT_Fixed a );
/**************************************************************************
*
* @function:
* FT_FloorFix
*
* @description:
* Compute the largest previous integer of a 16.16 fixed number.
*
* @input:
* a ::
* The number for which the floor function is to be computed.
*
* @return:
* `a` rounded towards minus infinity.
*/
FT_EXPORT( FT_Fixed )
FT_FloorFix( FT_Fixed a );
/**************************************************************************
*
* @function:
* FT_Vector_Transform
*
* @description:
* Transform a single vector through a 2x2 matrix.
*
* @inout:
* vector ::
* The target vector to transform.
*
* @input:
* matrix ::
* A pointer to the source 2x2 matrix.
*
* @note:
* The result is undefined if either `vector` or `matrix` is invalid.
*/
FT_EXPORT( void )
FT_Vector_Transform( FT_Vector* vector,
const FT_Matrix* matrix );
/**************************************************************************
*
* @section:
* version
*
* @title:
* FreeType Version
*
* @abstract:
* Functions and macros related to FreeType versions.
*
* @description:
* Note that those functions and macros are of limited use because even a
* new release of FreeType with only documentation changes increases the
* version number.
*
* @order:
* FT_Library_Version
*
* FREETYPE_MAJOR
* FREETYPE_MINOR
* FREETYPE_PATCH
*
* FT_Face_CheckTrueTypePatents
* FT_Face_SetUnpatentedHinting
*
*/
/**************************************************************************
*
* @enum:
* FREETYPE_XXX
*
* @description:
* These three macros identify the FreeType source code version. Use
* @FT_Library_Version to access them at runtime.
*
* @values:
* FREETYPE_MAJOR ::
* The major version number.
* FREETYPE_MINOR ::
* The minor version number.
* FREETYPE_PATCH ::
* The patch level.
*
* @note:
* The version number of FreeType if built as a dynamic link library with
* the 'libtool' package is _not_ controlled by these three macros.
*
*/
#define FREETYPE_MAJOR 2
#define FREETYPE_MINOR 12
#define FREETYPE_PATCH 0
/**************************************************************************
*
* @function:
* FT_Library_Version
*
* @description:
* Return the version of the FreeType library being used. This is useful
* when dynamically linking to the library, since one cannot use the
* macros @FREETYPE_MAJOR, @FREETYPE_MINOR, and @FREETYPE_PATCH.
*
* @input:
* library ::
* A source library handle.
*
* @output:
* amajor ::
* The major version number.
*
* aminor ::
* The minor version number.
*
* apatch ::
* The patch version number.
*
* @note:
* The reason why this function takes a `library` argument is because
* certain programs implement library initialization in a custom way that
* doesn't use @FT_Init_FreeType.
*
* In such cases, the library version might not be available before the
* library object has been created.
*/
FT_EXPORT( void )
FT_Library_Version( FT_Library library,
FT_Int *amajor,
FT_Int *aminor,
FT_Int *apatch );
/**************************************************************************
*
* @function:
* FT_Face_CheckTrueTypePatents
*
* @description:
* Deprecated, does nothing.
*
* @input:
* face ::
* A face handle.
*
* @return:
* Always returns false.
*
* @note:
* Since May 2010, TrueType hinting is no longer patented.
*
* @since:
* 2.3.5
*
*/
FT_EXPORT( FT_Bool )
FT_Face_CheckTrueTypePatents( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Face_SetUnpatentedHinting
*
* @description:
* Deprecated, does nothing.
*
* @input:
* face ::
* A face handle.
*
* value ::
* New boolean setting.
*
* @return:
* Always returns false.
*
* @note:
* Since May 2010, TrueType hinting is no longer patented.
*
* @since:
* 2.3.5
*
*/
FT_EXPORT( FT_Bool )
FT_Face_SetUnpatentedHinting( FT_Face face,
FT_Bool value );
/* */
FT_END_HEADER
#endif /* FREETYPE_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/freetype.h
|
C++
|
gpl-3.0
| 172,351
|
/****************************************************************************
*
* ftadvanc.h
*
* Quick computation of advance widths (specification only).
*
* Copyright (C) 2008-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTADVANC_H_
#define FTADVANC_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* quick_advance
*
* @title:
* Quick retrieval of advance values
*
* @abstract:
* Retrieve horizontal and vertical advance values without processing
* glyph outlines, if possible.
*
* @description:
* This section contains functions to quickly extract advance values
* without handling glyph outlines, if possible.
*
* @order:
* FT_Get_Advance
* FT_Get_Advances
*
*/
/**************************************************************************
*
* @enum:
* FT_ADVANCE_FLAG_FAST_ONLY
*
* @description:
* A bit-flag to be OR-ed with the `flags` parameter of the
* @FT_Get_Advance and @FT_Get_Advances functions.
*
* If set, it indicates that you want these functions to fail if the
* corresponding hinting mode or font driver doesn't allow for very quick
* advance computation.
*
* Typically, glyphs that are either unscaled, unhinted, bitmapped, or
* light-hinted can have their advance width computed very quickly.
*
* Normal and bytecode hinted modes that require loading, scaling, and
* hinting of the glyph outline, are extremely slow by comparison.
*/
#define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000L
/**************************************************************************
*
* @function:
* FT_Get_Advance
*
* @description:
* Retrieve the advance value of a given glyph outline in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* gindex ::
* The glyph index.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph, used to determine what kind of advances you need.
*
* @output:
* padvance ::
* The advance value. If scaling is performed (based on the value of
* `load_flags`), the advance value is in 16.16 format. Otherwise, it
* is in font units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance
* corresponding to a vertical layout. Otherwise, it is the horizontal
* advance in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* A scaled advance is returned in 16.16 format but isn't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advance( FT_Face face,
FT_UInt gindex,
FT_Int32 load_flags,
FT_Fixed *padvance );
/**************************************************************************
*
* @function:
* FT_Get_Advances
*
* @description:
* Retrieve the advance values of several glyph outlines in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* start ::
* The first glyph index.
*
* count ::
* The number of advance values you want to retrieve.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph.
*
* @output:
* padvance ::
* The advance values. This array, to be provided by the caller, must
* contain at least `count` elements.
*
* If scaling is performed (based on the value of `load_flags`), the
* advance values are in 16.16 format. Otherwise, they are in font
* units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances
* corresponding to a vertical layout. Otherwise, they are the
* horizontal advances in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* Scaled advances are returned in 16.16 format but aren't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advances( FT_Face face,
FT_UInt start,
FT_UInt count,
FT_Int32 load_flags,
FT_Fixed *padvances );
/* */
FT_END_HEADER
#endif /* FTADVANC_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftadvanc.h
|
C++
|
gpl-3.0
| 5,470
|
/****************************************************************************
*
* ftbbox.h
*
* FreeType exact bbox computation (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This component has a _single_ role: to compute exact outline bounding
* boxes.
*
* It is separated from the rest of the engine for various technical
* reasons. It may well be integrated in 'ftoutln' later.
*
*/
#ifndef FTBBOX_H_
#define FTBBOX_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Get_BBox
*
* @description:
* Compute the exact bounding box of an outline. This is slower than
* computing the control box. However, it uses an advanced algorithm
* that returns _very_ quickly when the two boxes coincide. Otherwise,
* the outline Bezier arcs are traversed to extract their extrema.
*
* @input:
* outline ::
* A pointer to the source outline.
*
* @output:
* abbox ::
* The outline's exact bounding box.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get
* reasonable values for the BBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the BBox, which can be
* eventually converted back to font units.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_BBox( FT_Outline* outline,
FT_BBox *abbox );
/* */
FT_END_HEADER
#endif /* FTBBOX_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftbbox.h
|
C++
|
gpl-3.0
| 2,638
|
/****************************************************************************
*
* ftbdf.h
*
* FreeType API for accessing BDF-specific strings (specification).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBDF_H_
#define FTBDF_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bdf_fonts
*
* @title:
* BDF and PCF Files
*
* @abstract:
* BDF and PCF specific API.
*
* @description:
* This section contains the declaration of functions specific to BDF and
* PCF fonts.
*
*/
/**************************************************************************
*
* @enum:
* BDF_PropertyType
*
* @description:
* A list of BDF property types.
*
* @values:
* BDF_PROPERTY_TYPE_NONE ::
* Value~0 is used to indicate a missing property.
*
* BDF_PROPERTY_TYPE_ATOM ::
* Property is a string atom.
*
* BDF_PROPERTY_TYPE_INTEGER ::
* Property is a 32-bit signed integer.
*
* BDF_PROPERTY_TYPE_CARDINAL ::
* Property is a 32-bit unsigned integer.
*/
typedef enum BDF_PropertyType_
{
BDF_PROPERTY_TYPE_NONE = 0,
BDF_PROPERTY_TYPE_ATOM = 1,
BDF_PROPERTY_TYPE_INTEGER = 2,
BDF_PROPERTY_TYPE_CARDINAL = 3
} BDF_PropertyType;
/**************************************************************************
*
* @type:
* BDF_Property
*
* @description:
* A handle to a @BDF_PropertyRec structure to model a given BDF/PCF
* property.
*/
typedef struct BDF_PropertyRec_* BDF_Property;
/**************************************************************************
*
* @struct:
* BDF_PropertyRec
*
* @description:
* This structure models a given BDF/PCF property.
*
* @fields:
* type ::
* The property type.
*
* u.atom ::
* The atom string, if type is @BDF_PROPERTY_TYPE_ATOM. May be
* `NULL`, indicating an empty string.
*
* u.integer ::
* A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
*
* u.cardinal ::
* An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
*/
typedef struct BDF_PropertyRec_
{
BDF_PropertyType type;
union {
const char* atom;
FT_Int32 integer;
FT_UInt32 cardinal;
} u;
} BDF_PropertyRec;
/**************************************************************************
*
* @function:
* FT_Get_BDF_Charset_ID
*
* @description:
* Retrieve a BDF font character set identity, according to the BDF
* specification.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* acharset_encoding ::
* Charset encoding, as a C~string, owned by the face.
*
* acharset_registry ::
* Charset registry, as a C~string, owned by the face.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with BDF faces, returning an error otherwise.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Charset_ID( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry );
/**************************************************************************
*
* @function:
* FT_Get_BDF_Property
*
* @description:
* Retrieve a BDF property from a BDF or PCF font file.
*
* @input:
* face ::
* A handle to the input face.
*
* name ::
* The property name.
*
* @output:
* aproperty ::
* The property.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function works with BDF _and_ PCF fonts. It returns an error
* otherwise. It also returns an error if the property is not in the
* font.
*
* A 'property' is a either key-value pair within the STARTPROPERTIES
* ... ENDPROPERTIES block of a BDF font or a key-value pair from the
* `info->props` array within a `FontRec` structure of a PCF font.
*
* Integer properties are always stored as 'signed' within PCF fonts;
* consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
* for BDF fonts only.
*
* In case of error, `aproperty->type` is always set to
* @BDF_PROPERTY_TYPE_NONE.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Property( FT_Face face,
const char* prop_name,
BDF_PropertyRec *aproperty );
/* */
FT_END_HEADER
#endif /* FTBDF_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftbdf.h
|
C++
|
gpl-3.0
| 5,322
|
/****************************************************************************
*
* ftbitmap.h
*
* FreeType utility functions for bitmaps (specification).
*
* Copyright (C) 2004-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBITMAP_H_
#define FTBITMAP_H_
#include <freetype/freetype.h>
#include <freetype/ftcolor.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bitmap_handling
*
* @title:
* Bitmap Handling
*
* @abstract:
* Handling FT_Bitmap objects.
*
* @description:
* This section contains functions for handling @FT_Bitmap objects,
* automatically adjusting the target's bitmap buffer size as needed.
*
* Note that none of the functions changes the bitmap's 'flow' (as
* indicated by the sign of the `pitch` field in @FT_Bitmap).
*
* To set the flow, assign an appropriate positive or negative value to
* the `pitch` field of the target @FT_Bitmap object after calling
* @FT_Bitmap_Init but before calling any of the other functions
* described here.
*/
/**************************************************************************
*
* @function:
* FT_Bitmap_Init
*
* @description:
* Initialize a pointer to an @FT_Bitmap structure.
*
* @inout:
* abitmap ::
* A pointer to the bitmap structure.
*
* @note:
* A deprecated name for the same function is `FT_Bitmap_New`.
*/
FT_EXPORT( void )
FT_Bitmap_Init( FT_Bitmap *abitmap );
/* deprecated */
FT_EXPORT( void )
FT_Bitmap_New( FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Bitmap_Copy
*
* @description:
* Copy a bitmap into another one.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* A handle to the source bitmap.
*
* @output:
* target ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Copy( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target );
/**************************************************************************
*
* @function:
* FT_Bitmap_Embolden
*
* @description:
* Embolden a bitmap. The new bitmap will be about `xStrength` pixels
* wider and `yStrength` pixels higher. The left and bottom borders are
* kept unchanged.
*
* @input:
* library ::
* A handle to a library object.
*
* xStrength ::
* How strong the glyph is emboldened horizontally. Expressed in 26.6
* pixel format.
*
* yStrength ::
* How strong the glyph is emboldened vertically. Expressed in 26.6
* pixel format.
*
* @inout:
* bitmap ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The current implementation restricts `xStrength` to be less than or
* equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.
*
* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, you
* should call @FT_GlyphSlot_Own_Bitmap on the slot first.
*
* Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format are
* converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Embolden( FT_Library library,
FT_Bitmap* bitmap,
FT_Pos xStrength,
FT_Pos yStrength );
/**************************************************************************
*
* @function:
* FT_Bitmap_Convert
*
* @description:
* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to
* a bitmap object with depth 8bpp, making the number of used bytes per
* line (a.k.a. the 'pitch') a multiple of `alignment`.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap.
*
* alignment ::
* The pitch of the bitmap is a multiple of this argument. Common
* values are 1, 2, or 4.
*
* @output:
* target ::
* The target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* It is possible to call @FT_Bitmap_Convert multiple times without
* calling @FT_Bitmap_Done (the memory is simply reallocated).
*
* Use @FT_Bitmap_Done to finally remove the bitmap object.
*
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Convert( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target,
FT_Int alignment );
/**************************************************************************
*
* @function:
* FT_Bitmap_Blend
*
* @description:
* Blend a bitmap onto another bitmap, using a given color.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap, which can have any @FT_Pixel_Mode format.
*
* source_offset ::
* The offset vector to the upper left corner of the source bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* color ::
* The color used to draw `source` onto `target`.
*
* @inout:
* target ::
* A handle to an `FT_Bitmap` object. It should be either initialized
* as empty with a call to @FT_Bitmap_Init, or it should be of type
* @FT_PIXEL_MODE_BGRA.
*
* atarget_offset ::
* The offset vector to the upper left corner of the target bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function doesn't perform clipping.
*
* The bitmap in `target` gets allocated or reallocated as needed; the
* vector `atarget_offset` is updated accordingly.
*
* In case of allocation or reallocation, the bitmap's pitch is set to
* `4 * width`. Both `source` and `target` must have the same bitmap
* flow (as indicated by the sign of the `pitch` field).
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Blend( FT_Library library,
const FT_Bitmap* source,
const FT_Vector source_offset,
FT_Bitmap* target,
FT_Vector *atarget_offset,
FT_Color color );
/**************************************************************************
*
* @function:
* FT_GlyphSlot_Own_Bitmap
*
* @description:
* Make sure that a glyph slot owns `slot->bitmap`.
*
* @input:
* slot ::
* The glyph slot.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is to be used in combination with @FT_Bitmap_Embolden.
*/
FT_EXPORT( FT_Error )
FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot );
/**************************************************************************
*
* @function:
* FT_Bitmap_Done
*
* @description:
* Destroy a bitmap object initialized with @FT_Bitmap_Init.
*
* @input:
* library ::
* A handle to a library object.
*
* bitmap ::
* The bitmap object to be freed.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Done( FT_Library library,
FT_Bitmap *bitmap );
/* */
FT_END_HEADER
#endif /* FTBITMAP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftbitmap.h
|
C++
|
gpl-3.0
| 9,051
|
/****************************************************************************
*
* ftbzip2.h
*
* Bzip2-compressed stream support.
*
* Copyright (C) 2010-2022 by
* Joel Klinghed.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBZIP2_H_
#define FTBZIP2_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bzip2
*
* @title:
* BZIP2 Streams
*
* @abstract:
* Using bzip2-compressed font files.
*
* @description:
* In certain builds of the library, bzip2 compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a bzip2 compressed
* stream from it and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Bzip2-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenBzip2
*
* @description:
* Open a new stream to parse bzip2-compressed font files. This is
* mainly used to support the compressed `*.pcf.bz2` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with bzip2 support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenBzip2( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTBZIP2_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftbzip2.h
|
C++
|
gpl-3.0
| 2,786
|
/****************************************************************************
*
* ftcache.h
*
* FreeType Cache subsystem (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCACHE_H_
#define FTCACHE_H_
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* cache_subsystem
*
* @title:
* Cache Sub-System
*
* @abstract:
* How to cache face, size, and glyph data with FreeType~2.
*
* @description:
* This section describes the FreeType~2 cache sub-system, which is used
* to limit the number of concurrently opened @FT_Face and @FT_Size
* objects, as well as caching information like character maps and glyph
* images while limiting their maximum memory usage.
*
* Note that all types and functions begin with the `FTC_` prefix.
*
* The cache is highly portable and thus doesn't know anything about the
* fonts installed on your system, or how to access them. This implies
* the following scheme:
*
* First, available or installed font faces are uniquely identified by
* @FTC_FaceID values, provided to the cache by the client. Note that
* the cache only stores and compares these values, and doesn't try to
* interpret them in any way.
*
* Second, the cache calls, only when needed, a client-provided function
* to convert an @FTC_FaceID into a new @FT_Face object. The latter is
* then completely managed by the cache, including its termination
* through @FT_Done_Face. To monitor termination of face objects, the
* finalizer callback in the `generic` field of the @FT_Face object can
* be used, which might also be used to store the @FTC_FaceID of the
* face.
*
* Clients are free to map face IDs to anything else. The most simple
* usage is to associate them to a (pathname,face_index) pair that is
* used to call @FT_New_Face. However, more complex schemes are also
* possible.
*
* Note that for the cache to work correctly, the face ID values must be
* **persistent**, which means that the contents they point to should not
* change at runtime, or that their value should not become invalid.
*
* If this is unavoidable (e.g., when a font is uninstalled at runtime),
* you should call @FTC_Manager_RemoveFaceID as soon as possible, to let
* the cache get rid of any references to the old @FTC_FaceID it may keep
* internally. Failure to do so will lead to incorrect behaviour or even
* crashes.
*
* To use the cache, start with calling @FTC_Manager_New to create a new
* @FTC_Manager object, which models a single cache instance. You can
* then look up @FT_Face and @FT_Size objects with
* @FTC_Manager_LookupFace and @FTC_Manager_LookupSize, respectively.
*
* If you want to use the charmap caching, call @FTC_CMapCache_New, then
* later use @FTC_CMapCache_Lookup to perform the equivalent of
* @FT_Get_Char_Index, only much faster.
*
* If you want to use the @FT_Glyph caching, call @FTC_ImageCache_New,
* then later use @FTC_ImageCache_Lookup to retrieve the corresponding
* @FT_Glyph objects from the cache.
*
* If you need lots of small bitmaps, it is much more memory efficient to
* call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup. This
* returns @FTC_SBitRec structures, which are used to store small bitmaps
* directly. (A small bitmap is one whose metrics and dimensions all fit
* into 8-bit integers).
*
* We hope to also provide a kerning cache in the near future.
*
*
* @order:
* FTC_Manager
* FTC_FaceID
* FTC_Face_Requester
*
* FTC_Manager_New
* FTC_Manager_Reset
* FTC_Manager_Done
* FTC_Manager_LookupFace
* FTC_Manager_LookupSize
* FTC_Manager_RemoveFaceID
*
* FTC_Node
* FTC_Node_Unref
*
* FTC_ImageCache
* FTC_ImageCache_New
* FTC_ImageCache_Lookup
*
* FTC_SBit
* FTC_SBitCache
* FTC_SBitCache_New
* FTC_SBitCache_Lookup
*
* FTC_CMapCache
* FTC_CMapCache_New
* FTC_CMapCache_Lookup
*
*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** BASIC TYPE DEFINITIONS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* FTC_FaceID
*
* @description:
* An opaque pointer type that is used to identity face objects. The
* contents of such objects is application-dependent.
*
* These pointers are typically used to point to a user-defined structure
* containing a font file path, and face index.
*
* @note:
* Never use `NULL` as a valid @FTC_FaceID.
*
* Face IDs are passed by the client to the cache manager that calls,
* when needed, the @FTC_Face_Requester to translate them into new
* @FT_Face objects.
*
* If the content of a given face ID changes at runtime, or if the value
* becomes invalid (e.g., when uninstalling a font), you should
* immediately call @FTC_Manager_RemoveFaceID before any other cache
* function.
*
* Failure to do so will result in incorrect behaviour or even memory
* leaks and crashes.
*/
typedef FT_Pointer FTC_FaceID;
/**************************************************************************
*
* @functype:
* FTC_Face_Requester
*
* @description:
* A callback function provided by client applications. It is used by
* the cache manager to translate a given @FTC_FaceID into a new valid
* @FT_Face object, on demand.
*
* @input:
* face_id ::
* The face ID to resolve.
*
* library ::
* A handle to a FreeType library object.
*
* req_data ::
* Application-provided request data (see note below).
*
* @output:
* aface ::
* A new @FT_Face handle.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The third parameter `req_data` is the same as the one passed by the
* client when @FTC_Manager_New is called.
*
* The face requester should not perform funny things on the returned
* face object, like creating a new @FT_Size for it, or setting a
* transformation through @FT_Set_Transform!
*/
typedef FT_Error
(*FTC_Face_Requester)( FTC_FaceID face_id,
FT_Library library,
FT_Pointer req_data,
FT_Face* aface );
/* */
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CACHE MANAGER OBJECT *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* FTC_Manager
*
* @description:
* This object corresponds to one instance of the cache-subsystem. It is
* used to cache one or more @FT_Face objects, along with corresponding
* @FT_Size objects.
*
* The manager intentionally limits the total number of opened @FT_Face
* and @FT_Size objects to control memory usage. See the `max_faces` and
* `max_sizes` parameters of @FTC_Manager_New.
*
* The manager is also used to cache 'nodes' of various types while
* limiting their total memory usage.
*
* All limitations are enforced by keeping lists of managed objects in
* most-recently-used order, and flushing old nodes to make room for new
* ones.
*/
typedef struct FTC_ManagerRec_* FTC_Manager;
/**************************************************************************
*
* @type:
* FTC_Node
*
* @description:
* An opaque handle to a cache node object. Each cache node is
* reference-counted. A node with a count of~0 might be flushed out of a
* full cache whenever a lookup request is performed.
*
* If you look up nodes, you have the ability to 'acquire' them, i.e., to
* increment their reference count. This will prevent the node from
* being flushed out of the cache until you explicitly 'release' it (see
* @FTC_Node_Unref).
*
* See also @FTC_SBitCache_Lookup and @FTC_ImageCache_Lookup.
*/
typedef struct FTC_NodeRec_* FTC_Node;
/**************************************************************************
*
* @function:
* FTC_Manager_New
*
* @description:
* Create a new cache manager.
*
* @input:
* library ::
* The parent FreeType library handle to use.
*
* max_faces ::
* Maximum number of opened @FT_Face objects managed by this cache
* instance. Use~0 for defaults.
*
* max_sizes ::
* Maximum number of opened @FT_Size objects managed by this cache
* instance. Use~0 for defaults.
*
* max_bytes ::
* Maximum number of bytes to use for cached data nodes. Use~0 for
* defaults. Note that this value does not account for managed
* @FT_Face and @FT_Size objects.
*
* requester ::
* An application-provided callback used to translate face IDs into
* real @FT_Face objects.
*
* req_data ::
* A generic pointer that is passed to the requester each time it is
* called (see @FTC_Face_Requester).
*
* @output:
* amanager ::
* A handle to a new manager object. 0~in case of failure.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FTC_Manager_New( FT_Library library,
FT_UInt max_faces,
FT_UInt max_sizes,
FT_ULong max_bytes,
FTC_Face_Requester requester,
FT_Pointer req_data,
FTC_Manager *amanager );
/**************************************************************************
*
* @function:
* FTC_Manager_Reset
*
* @description:
* Empty a given cache manager. This simply gets rid of all the
* currently cached @FT_Face and @FT_Size objects within the manager.
*
* @inout:
* manager ::
* A handle to the manager.
*/
FT_EXPORT( void )
FTC_Manager_Reset( FTC_Manager manager );
/**************************************************************************
*
* @function:
* FTC_Manager_Done
*
* @description:
* Destroy a given manager after emptying it.
*
* @input:
* manager ::
* A handle to the target cache manager object.
*/
FT_EXPORT( void )
FTC_Manager_Done( FTC_Manager manager );
/**************************************************************************
*
* @function:
* FTC_Manager_LookupFace
*
* @description:
* Retrieve the @FT_Face object that corresponds to a given face ID
* through a cache manager.
*
* @input:
* manager ::
* A handle to the cache manager.
*
* face_id ::
* The ID of the face object.
*
* @output:
* aface ::
* A handle to the face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The returned @FT_Face object is always owned by the manager. You
* should never try to discard it yourself.
*
* The @FT_Face object doesn't necessarily have a current size object
* (i.e., face->size can be~0). If you need a specific 'font size', use
* @FTC_Manager_LookupSize instead.
*
* Never change the face's transformation matrix (i.e., never call the
* @FT_Set_Transform function) on a returned face! If you need to
* transform glyphs, do it yourself after glyph loading.
*
* When you perform a lookup, out-of-memory errors are detected _within_
* the lookup and force incremental flushes of the cache until enough
* memory is released for the lookup to succeed.
*
* If a lookup fails with `FT_Err_Out_Of_Memory` the cache has already
* been completely flushed, and still no memory was available for the
* operation.
*/
FT_EXPORT( FT_Error )
FTC_Manager_LookupFace( FTC_Manager manager,
FTC_FaceID face_id,
FT_Face *aface );
/**************************************************************************
*
* @struct:
* FTC_ScalerRec
*
* @description:
* A structure used to describe a given character size in either pixels
* or points to the cache manager. See @FTC_Manager_LookupSize.
*
* @fields:
* face_id ::
* The source face ID.
*
* width ::
* The character width.
*
* height ::
* The character height.
*
* pixel ::
* A Boolean. If 1, the `width` and `height` fields are interpreted as
* integer pixel character sizes. Otherwise, they are expressed as
* 1/64th of points.
*
* x_res ::
* Only used when `pixel` is value~0 to indicate the horizontal
* resolution in dpi.
*
* y_res ::
* Only used when `pixel` is value~0 to indicate the vertical
* resolution in dpi.
*
* @note:
* This type is mainly used to retrieve @FT_Size objects through the
* cache manager.
*/
typedef struct FTC_ScalerRec_
{
FTC_FaceID face_id;
FT_UInt width;
FT_UInt height;
FT_Int pixel;
FT_UInt x_res;
FT_UInt y_res;
} FTC_ScalerRec;
/**************************************************************************
*
* @struct:
* FTC_Scaler
*
* @description:
* A handle to an @FTC_ScalerRec structure.
*/
typedef struct FTC_ScalerRec_* FTC_Scaler;
/**************************************************************************
*
* @function:
* FTC_Manager_LookupSize
*
* @description:
* Retrieve the @FT_Size object that corresponds to a given
* @FTC_ScalerRec pointer through a cache manager.
*
* @input:
* manager ::
* A handle to the cache manager.
*
* scaler ::
* A scaler handle.
*
* @output:
* asize ::
* A handle to the size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The returned @FT_Size object is always owned by the manager. You
* should never try to discard it by yourself.
*
* You can access the parent @FT_Face object simply as `size->face` if
* you need it. Note that this object is also owned by the manager.
*
* @note:
* When you perform a lookup, out-of-memory errors are detected _within_
* the lookup and force incremental flushes of the cache until enough
* memory is released for the lookup to succeed.
*
* If a lookup fails with `FT_Err_Out_Of_Memory` the cache has already
* been completely flushed, and still no memory is available for the
* operation.
*/
FT_EXPORT( FT_Error )
FTC_Manager_LookupSize( FTC_Manager manager,
FTC_Scaler scaler,
FT_Size *asize );
/**************************************************************************
*
* @function:
* FTC_Node_Unref
*
* @description:
* Decrement a cache node's internal reference count. When the count
* reaches 0, it is not destroyed but becomes eligible for subsequent
* cache flushes.
*
* @input:
* node ::
* The cache node handle.
*
* manager ::
* The cache manager handle.
*/
FT_EXPORT( void )
FTC_Node_Unref( FTC_Node node,
FTC_Manager manager );
/**************************************************************************
*
* @function:
* FTC_Manager_RemoveFaceID
*
* @description:
* A special function used to indicate to the cache manager that a given
* @FTC_FaceID is no longer valid, either because its content changed, or
* because it was deallocated or uninstalled.
*
* @input:
* manager ::
* The cache manager handle.
*
* face_id ::
* The @FTC_FaceID to be removed.
*
* @note:
* This function flushes all nodes from the cache corresponding to this
* `face_id`, with the exception of nodes with a non-null reference
* count.
*
* Such nodes are however modified internally so as to never appear in
* later lookups with the same `face_id` value, and to be immediately
* destroyed when released by all their users.
*
*/
FT_EXPORT( void )
FTC_Manager_RemoveFaceID( FTC_Manager manager,
FTC_FaceID face_id );
/**************************************************************************
*
* @type:
* FTC_CMapCache
*
* @description:
* An opaque handle used to model a charmap cache. This cache is to hold
* character codes -> glyph indices mappings.
*
*/
typedef struct FTC_CMapCacheRec_* FTC_CMapCache;
/**************************************************************************
*
* @function:
* FTC_CMapCache_New
*
* @description:
* Create a new charmap cache.
*
* @input:
* manager ::
* A handle to the cache manager.
*
* @output:
* acache ::
* A new cache handle. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Like all other caches, this one will be destroyed with the cache
* manager.
*
*/
FT_EXPORT( FT_Error )
FTC_CMapCache_New( FTC_Manager manager,
FTC_CMapCache *acache );
/**************************************************************************
*
* @function:
* FTC_CMapCache_Lookup
*
* @description:
* Translate a character code into a glyph index, using the charmap
* cache.
*
* @input:
* cache ::
* A charmap cache handle.
*
* face_id ::
* The source face ID.
*
* cmap_index ::
* The index of the charmap in the source face. Any negative value
* means to use the cache @FT_Face's default charmap.
*
* char_code ::
* The character code (in the corresponding charmap).
*
* @return:
* Glyph index. 0~means 'no glyph'.
*
*/
FT_EXPORT( FT_UInt )
FTC_CMapCache_Lookup( FTC_CMapCache cache,
FTC_FaceID face_id,
FT_Int cmap_index,
FT_UInt32 char_code );
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** IMAGE CACHE OBJECT *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @struct:
* FTC_ImageTypeRec
*
* @description:
* A structure used to model the type of images in a glyph cache.
*
* @fields:
* face_id ::
* The face ID.
*
* width ::
* The width in pixels.
*
* height ::
* The height in pixels.
*
* flags ::
* The load flags, as in @FT_Load_Glyph.
*
*/
typedef struct FTC_ImageTypeRec_
{
FTC_FaceID face_id;
FT_UInt width;
FT_UInt height;
FT_Int32 flags;
} FTC_ImageTypeRec;
/**************************************************************************
*
* @type:
* FTC_ImageType
*
* @description:
* A handle to an @FTC_ImageTypeRec structure.
*
*/
typedef struct FTC_ImageTypeRec_* FTC_ImageType;
/* */
#define FTC_IMAGE_TYPE_COMPARE( d1, d2 ) \
( (d1)->face_id == (d2)->face_id && \
(d1)->width == (d2)->width && \
(d1)->flags == (d2)->flags )
/**************************************************************************
*
* @type:
* FTC_ImageCache
*
* @description:
* A handle to a glyph image cache object. They are designed to hold
* many distinct glyph images while not exceeding a certain memory
* threshold.
*/
typedef struct FTC_ImageCacheRec_* FTC_ImageCache;
/**************************************************************************
*
* @function:
* FTC_ImageCache_New
*
* @description:
* Create a new glyph image cache.
*
* @input:
* manager ::
* The parent manager for the image cache.
*
* @output:
* acache ::
* A handle to the new glyph image cache object.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FTC_ImageCache_New( FTC_Manager manager,
FTC_ImageCache *acache );
/**************************************************************************
*
* @function:
* FTC_ImageCache_Lookup
*
* @description:
* Retrieve a given glyph image from a glyph image cache.
*
* @input:
* cache ::
* A handle to the source glyph image cache.
*
* type ::
* A pointer to a glyph image type descriptor.
*
* gindex ::
* The glyph index to retrieve.
*
* @output:
* aglyph ::
* The corresponding @FT_Glyph object. 0~in case of failure.
*
* anode ::
* Used to return the address of the corresponding cache node after
* incrementing its reference count (see note below).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The returned glyph is owned and managed by the glyph image cache.
* Never try to transform or discard it manually! You can however create
* a copy with @FT_Glyph_Copy and modify the new one.
*
* If `anode` is _not_ `NULL`, it receives the address of the cache node
* containing the glyph image, after increasing its reference count.
* This ensures that the node (as well as the @FT_Glyph) will always be
* kept in the cache until you call @FTC_Node_Unref to 'release' it.
*
* If `anode` is `NULL`, the cache node is left unchanged, which means
* that the @FT_Glyph could be flushed out of the cache on the next call
* to one of the caching sub-system APIs. Don't assume that it is
* persistent!
*/
FT_EXPORT( FT_Error )
FTC_ImageCache_Lookup( FTC_ImageCache cache,
FTC_ImageType type,
FT_UInt gindex,
FT_Glyph *aglyph,
FTC_Node *anode );
/**************************************************************************
*
* @function:
* FTC_ImageCache_LookupScaler
*
* @description:
* A variant of @FTC_ImageCache_Lookup that uses an @FTC_ScalerRec to
* specify the face ID and its size.
*
* @input:
* cache ::
* A handle to the source glyph image cache.
*
* scaler ::
* A pointer to a scaler descriptor.
*
* load_flags ::
* The corresponding load flags.
*
* gindex ::
* The glyph index to retrieve.
*
* @output:
* aglyph ::
* The corresponding @FT_Glyph object. 0~in case of failure.
*
* anode ::
* Used to return the address of the corresponding cache node after
* incrementing its reference count (see note below).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The returned glyph is owned and managed by the glyph image cache.
* Never try to transform or discard it manually! You can however create
* a copy with @FT_Glyph_Copy and modify the new one.
*
* If `anode` is _not_ `NULL`, it receives the address of the cache node
* containing the glyph image, after increasing its reference count.
* This ensures that the node (as well as the @FT_Glyph) will always be
* kept in the cache until you call @FTC_Node_Unref to 'release' it.
*
* If `anode` is `NULL`, the cache node is left unchanged, which means
* that the @FT_Glyph could be flushed out of the cache on the next call
* to one of the caching sub-system APIs. Don't assume that it is
* persistent!
*
* Calls to @FT_Set_Char_Size and friends have no effect on cached
* glyphs; you should always use the FreeType cache API instead.
*/
FT_EXPORT( FT_Error )
FTC_ImageCache_LookupScaler( FTC_ImageCache cache,
FTC_Scaler scaler,
FT_ULong load_flags,
FT_UInt gindex,
FT_Glyph *aglyph,
FTC_Node *anode );
/**************************************************************************
*
* @type:
* FTC_SBit
*
* @description:
* A handle to a small bitmap descriptor. See the @FTC_SBitRec structure
* for details.
*/
typedef struct FTC_SBitRec_* FTC_SBit;
/**************************************************************************
*
* @struct:
* FTC_SBitRec
*
* @description:
* A very compact structure used to describe a small glyph bitmap.
*
* @fields:
* width ::
* The bitmap width in pixels.
*
* height ::
* The bitmap height in pixels.
*
* left ::
* The horizontal distance from the pen position to the left bitmap
* border (a.k.a. 'left side bearing', or 'lsb').
*
* top ::
* The vertical distance from the pen position (on the baseline) to the
* upper bitmap border (a.k.a. 'top side bearing'). The distance is
* positive for upwards y~coordinates.
*
* format ::
* The format of the glyph bitmap (monochrome or gray).
*
* max_grays ::
* Maximum gray level value (in the range 1 to~255).
*
* pitch ::
* The number of bytes per bitmap line. May be positive or negative.
*
* xadvance ::
* The horizontal advance width in pixels.
*
* yadvance ::
* The vertical advance height in pixels.
*
* buffer ::
* A pointer to the bitmap pixels.
*/
typedef struct FTC_SBitRec_
{
FT_Byte width;
FT_Byte height;
FT_Char left;
FT_Char top;
FT_Byte format;
FT_Byte max_grays;
FT_Short pitch;
FT_Char xadvance;
FT_Char yadvance;
FT_Byte* buffer;
} FTC_SBitRec;
/**************************************************************************
*
* @type:
* FTC_SBitCache
*
* @description:
* A handle to a small bitmap cache. These are special cache objects
* used to store small glyph bitmaps (and anti-aliased pixmaps) in a much
* more efficient way than the traditional glyph image cache implemented
* by @FTC_ImageCache.
*/
typedef struct FTC_SBitCacheRec_* FTC_SBitCache;
/**************************************************************************
*
* @function:
* FTC_SBitCache_New
*
* @description:
* Create a new cache to store small glyph bitmaps.
*
* @input:
* manager ::
* A handle to the source cache manager.
*
* @output:
* acache ::
* A handle to the new sbit cache. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FTC_SBitCache_New( FTC_Manager manager,
FTC_SBitCache *acache );
/**************************************************************************
*
* @function:
* FTC_SBitCache_Lookup
*
* @description:
* Look up a given small glyph bitmap in a given sbit cache and 'lock' it
* to prevent its flushing from the cache until needed.
*
* @input:
* cache ::
* A handle to the source sbit cache.
*
* type ::
* A pointer to the glyph image type descriptor.
*
* gindex ::
* The glyph index.
*
* @output:
* sbit ::
* A handle to a small bitmap descriptor.
*
* anode ::
* Used to return the address of the corresponding cache node after
* incrementing its reference count (see note below).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The small bitmap descriptor and its bit buffer are owned by the cache
* and should never be freed by the application. They might as well
* disappear from memory on the next cache lookup, so don't treat them as
* persistent data.
*
* The descriptor's `buffer` field is set to~0 to indicate a missing
* glyph bitmap.
*
* If `anode` is _not_ `NULL`, it receives the address of the cache node
* containing the bitmap, after increasing its reference count. This
* ensures that the node (as well as the image) will always be kept in
* the cache until you call @FTC_Node_Unref to 'release' it.
*
* If `anode` is `NULL`, the cache node is left unchanged, which means
* that the bitmap could be flushed out of the cache on the next call to
* one of the caching sub-system APIs. Don't assume that it is
* persistent!
*/
FT_EXPORT( FT_Error )
FTC_SBitCache_Lookup( FTC_SBitCache cache,
FTC_ImageType type,
FT_UInt gindex,
FTC_SBit *sbit,
FTC_Node *anode );
/**************************************************************************
*
* @function:
* FTC_SBitCache_LookupScaler
*
* @description:
* A variant of @FTC_SBitCache_Lookup that uses an @FTC_ScalerRec to
* specify the face ID and its size.
*
* @input:
* cache ::
* A handle to the source sbit cache.
*
* scaler ::
* A pointer to the scaler descriptor.
*
* load_flags ::
* The corresponding load flags.
*
* gindex ::
* The glyph index.
*
* @output:
* sbit ::
* A handle to a small bitmap descriptor.
*
* anode ::
* Used to return the address of the corresponding cache node after
* incrementing its reference count (see note below).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The small bitmap descriptor and its bit buffer are owned by the cache
* and should never be freed by the application. They might as well
* disappear from memory on the next cache lookup, so don't treat them as
* persistent data.
*
* The descriptor's `buffer` field is set to~0 to indicate a missing
* glyph bitmap.
*
* If `anode` is _not_ `NULL`, it receives the address of the cache node
* containing the bitmap, after increasing its reference count. This
* ensures that the node (as well as the image) will always be kept in
* the cache until you call @FTC_Node_Unref to 'release' it.
*
* If `anode` is `NULL`, the cache node is left unchanged, which means
* that the bitmap could be flushed out of the cache on the next call to
* one of the caching sub-system APIs. Don't assume that it is
* persistent!
*/
FT_EXPORT( FT_Error )
FTC_SBitCache_LookupScaler( FTC_SBitCache cache,
FTC_Scaler scaler,
FT_ULong load_flags,
FT_UInt gindex,
FTC_SBit *sbit,
FTC_Node *anode );
/* */
FT_END_HEADER
#endif /* FTCACHE_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftcache.h
|
C++
|
gpl-3.0
| 33,862
|
/****************************************************************************
*
* This file defines the structure of the FreeType reference.
* It is used by the python script that generates the HTML files.
*
*/
/**************************************************************************
*
* @chapter:
* general_remarks
*
* @title:
* General Remarks
*
* @sections:
* preamble
* header_inclusion
* user_allocation
*
*/
/**************************************************************************
*
* @chapter:
* core_api
*
* @title:
* Core API
*
* @sections:
* version
* basic_types
* base_interface
* glyph_variants
* color_management
* layer_management
* glyph_management
* mac_specific
* sizes_management
* header_file_macros
*
*/
/**************************************************************************
*
* @chapter:
* format_specific
*
* @title:
* Format-Specific API
*
* @sections:
* multiple_masters
* truetype_tables
* type1_tables
* sfnt_names
* bdf_fonts
* cid_fonts
* pfr_fonts
* winfnt_fonts
* svg_fonts
* font_formats
* gasp_table
*
*/
/**************************************************************************
*
* @chapter:
* module_specific
*
* @title:
* Controlling FreeType Modules
*
* @sections:
* auto_hinter
* cff_driver
* t1_cid_driver
* tt_driver
* pcf_driver
* ot_svg_driver
* properties
* parameter_tags
* lcd_rendering
*
*/
/**************************************************************************
*
* @chapter:
* cache_subsystem
*
* @title:
* Cache Sub-System
*
* @sections:
* cache_subsystem
*
*/
/**************************************************************************
*
* @chapter:
* support_api
*
* @title:
* Support API
*
* @sections:
* computations
* list_processing
* outline_processing
* quick_advance
* bitmap_handling
* raster
* glyph_stroker
* system_interface
* module_management
* gzip
* lzw
* bzip2
* debugging_apis
*
*/
/**************************************************************************
*
* @chapter:
* error_codes
*
* @title:
* Error Codes
*
* @sections:
* error_enumerations
* error_code_values
*
*/
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftchapters.h
|
C++
|
gpl-3.0
| 2,586
|
/****************************************************************************
*
* ftcid.h
*
* FreeType API for accessing CID font information (specification).
*
* Copyright (C) 2007-2022 by
* Dereg Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCID_H_
#define FTCID_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* cid_fonts
*
* @title:
* CID Fonts
*
* @abstract:
* CID-keyed font-specific API.
*
* @description:
* This section contains the declaration of CID-keyed font-specific
* functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_CID_Registry_Ordering_Supplement
*
* @description:
* Retrieve the Registry/Ordering/Supplement triple (also known as the
* "R/O/S") from a CID-keyed font.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* registry ::
* The registry, as a C~string, owned by the face.
*
* ordering ::
* The ordering, as a C~string, owned by the face.
*
* supplement ::
* The supplement.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces, returning an error
* otherwise.
*
* @since:
* 2.3.6
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Registry_Ordering_Supplement( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement );
/**************************************************************************
*
* @function:
* FT_Get_CID_Is_Internally_CID_Keyed
*
* @description:
* Retrieve the type of the input face, CID keyed or not. In contrast
* to the @FT_IS_CID_KEYED macro this function returns successfully also
* for CID-keyed fonts in an SFNT wrapper.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* is_cid ::
* The type of the face as an @FT_Bool.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face,
FT_Bool *is_cid );
/**************************************************************************
*
* @function:
* FT_Get_CID_From_Glyph_Index
*
* @description:
* Retrieve the CID of the input glyph index.
*
* @input:
* face ::
* A handle to the input face.
*
* glyph_index ::
* The input glyph index.
*
* @output:
* cid ::
* The CID as an @FT_UInt.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_From_Glyph_Index( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid );
/* */
FT_END_HEADER
#endif /* FTCID_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftcid.h
|
C++
|
gpl-3.0
| 4,022
|
/****************************************************************************
*
* ftcolor.h
*
* FreeType's glyph color management (specification).
*
* Copyright (C) 2018-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCOLOR_H_
#define FTCOLOR_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* color_management
*
* @title:
* Glyph Color Management
*
* @abstract:
* Retrieving and manipulating OpenType's 'CPAL' table data.
*
* @description:
* The functions described here allow access and manipulation of color
* palette entries in OpenType's 'CPAL' tables.
*/
/**************************************************************************
*
* @struct:
* FT_Color
*
* @description:
* This structure models a BGRA color value of a 'CPAL' palette entry.
*
* The used color space is sRGB; the colors are not pre-multiplied, and
* alpha values must be explicitly set.
*
* @fields:
* blue ::
* Blue value.
*
* green ::
* Green value.
*
* red ::
* Red value.
*
* alpha ::
* Alpha value, giving the red, green, and blue color's opacity.
*
* @since:
* 2.10
*/
typedef struct FT_Color_
{
FT_Byte blue;
FT_Byte green;
FT_Byte red;
FT_Byte alpha;
} FT_Color;
/**************************************************************************
*
* @enum:
* FT_PALETTE_XXX
*
* @description:
* A list of bit field constants used in the `palette_flags` array of the
* @FT_Palette_Data structure to indicate for which background a palette
* with a given index is usable.
*
* @values:
* FT_PALETTE_FOR_LIGHT_BACKGROUND ::
* The palette is appropriate to use when displaying the font on a
* light background such as white.
*
* FT_PALETTE_FOR_DARK_BACKGROUND ::
* The palette is appropriate to use when displaying the font on a dark
* background such as black.
*
* @since:
* 2.10
*/
#define FT_PALETTE_FOR_LIGHT_BACKGROUND 0x01
#define FT_PALETTE_FOR_DARK_BACKGROUND 0x02
/**************************************************************************
*
* @struct:
* FT_Palette_Data
*
* @description:
* This structure holds the data of the 'CPAL' table.
*
* @fields:
* num_palettes ::
* The number of palettes.
*
* palette_name_ids ::
* An optional read-only array of palette name IDs with `num_palettes`
* elements, corresponding to entries like 'dark' or 'light' in the
* font's 'name' table.
*
* An empty name ID in the 'CPAL' table gets represented as value
* 0xFFFF.
*
* `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
*
* palette_flags ::
* An optional read-only array of palette flags with `num_palettes`
* elements. Possible values are an ORed combination of
* @FT_PALETTE_FOR_LIGHT_BACKGROUND and
* @FT_PALETTE_FOR_DARK_BACKGROUND.
*
* `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
*
* num_palette_entries ::
* The number of entries in a single palette. All palettes have the
* same size.
*
* palette_entry_name_ids ::
* An optional read-only array of palette entry name IDs with
* `num_palette_entries`. In each palette, entries with the same index
* have the same function. For example, index~0 might correspond to
* string 'outline' in the font's 'name' table to indicate that this
* palette entry is used for outlines, index~1 might correspond to
* 'fill' to indicate the filling color palette entry, etc.
*
* An empty entry name ID in the 'CPAL' table gets represented as value
* 0xFFFF.
*
* `NULL` if the font's 'CPAL' table doesn't contain appropriate data.
*
* @note:
* Use function @FT_Get_Sfnt_Name to map name IDs and entry name IDs to
* name strings.
*
* Use function @FT_Palette_Select to get the colors associated with a
* palette entry.
*
* @since:
* 2.10
*/
typedef struct FT_Palette_Data_ {
FT_UShort num_palettes;
const FT_UShort* palette_name_ids;
const FT_UShort* palette_flags;
FT_UShort num_palette_entries;
const FT_UShort* palette_entry_name_ids;
} FT_Palette_Data;
/**************************************************************************
*
* @function:
* FT_Palette_Data_Get
*
* @description:
* Retrieve the face's color palette data.
*
* @input:
* face ::
* The source face handle.
*
* @output:
* apalette ::
* A pointer to an @FT_Palette_Data structure.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* All arrays in the returned @FT_Palette_Data structure are read-only.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Data_Get( FT_Face face,
FT_Palette_Data *apalette );
/**************************************************************************
*
* @function:
* FT_Palette_Select
*
* @description:
* This function has two purposes.
*
* (1) It activates a palette for rendering color glyphs, and
*
* (2) it retrieves all (unmodified) color entries of this palette. This
* function returns a read-write array, which means that a calling
* application can modify the palette entries on demand.
*
* A corollary of (2) is that calling the function, then modifying some
* values, then calling the function again with the same arguments resets
* all color entries to the original 'CPAL' values; all user modifications
* are lost.
*
* @input:
* face ::
* The source face handle.
*
* palette_index ::
* The palette index.
*
* @output:
* apalette ::
* An array of color entries for a palette with index `palette_index`,
* having `num_palette_entries` elements (as found in the
* `FT_Palette_Data` structure). If `apalette` is set to `NULL`, no
* array gets returned (and no color entries can be modified).
*
* In case the font doesn't support color palettes, `NULL` is returned.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The array pointed to by `apalette_entries` is owned and managed by
* FreeType.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Select( FT_Face face,
FT_UShort palette_index,
FT_Color* *apalette );
/**************************************************************************
*
* @function:
* FT_Palette_Set_Foreground_Color
*
* @description:
* 'COLR' uses palette index 0xFFFF to indicate a 'text foreground
* color'. This function sets this value.
*
* @input:
* face ::
* The source face handle.
*
* foreground_color ::
* An `FT_Color` structure to define the text foreground color.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If this function isn't called, the text foreground color is set to
* white opaque (BGRA value 0xFFFFFFFF) if
* @FT_PALETTE_FOR_DARK_BACKGROUND is present for the current palette,
* and black opaque (BGRA value 0x000000FF) otherwise, including the case
* that no palette types are available in the 'CPAL' table.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_COLOR_LAYERS` is not defined in `ftoption.h`.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Palette_Set_Foreground_Color( FT_Face face,
FT_Color foreground_color );
/**************************************************************************
*
* @section:
* layer_management
*
* @title:
* Glyph Layer Management
*
* @abstract:
* Retrieving and manipulating OpenType's 'COLR' table data.
*
* @description:
* The functions described here allow access of colored glyph layer data
* in OpenType's 'COLR' tables.
*/
/**************************************************************************
*
* @struct:
* FT_LayerIterator
*
* @description:
* This iterator object is needed for @FT_Get_Color_Glyph_Layer.
*
* @fields:
* num_layers ::
* The number of glyph layers for the requested glyph index. Will be
* set by @FT_Get_Color_Glyph_Layer.
*
* layer ::
* The current layer. Will be set by @FT_Get_Color_Glyph_Layer.
*
* p ::
* An opaque pointer into 'COLR' table data. The caller must set this
* to `NULL` before the first call of @FT_Get_Color_Glyph_Layer.
*/
typedef struct FT_LayerIterator_
{
FT_UInt num_layers;
FT_UInt layer;
FT_Byte* p;
} FT_LayerIterator;
/**************************************************************************
*
* @function:
* FT_Get_Color_Glyph_Layer
*
* @description:
* This is an interface to the 'COLR' table in OpenType fonts to
* iteratively retrieve the colored glyph layers associated with the
* current glyph slot.
*
* https://docs.microsoft.com/en-us/typography/opentype/spec/colr
*
* The glyph layer data for a given glyph index, if present, provides an
* alternative, multi-color glyph representation: Instead of rendering
* the outline or bitmap with the given glyph index, glyphs with the
* indices and colors returned by this function are rendered layer by
* layer.
*
* The returned elements are ordered in the z~direction from bottom to
* top; the 'n'th element should be rendered with the associated palette
* color and blended on top of the already rendered layers (elements 0,
* 1, ..., n-1).
*
* @input:
* face ::
* A handle to the parent face object.
*
* base_glyph ::
* The glyph index the colored glyph layers are associated with.
*
* @inout:
* iterator ::
* An @FT_LayerIterator object. For the first call you should set
* `iterator->p` to `NULL`. For all following calls, simply use the
* same object again.
*
* @output:
* aglyph_index ::
* The glyph index of the current layer.
*
* acolor_index ::
* The color index into the font face's color palette of the current
* layer. The value 0xFFFF is special; it doesn't reference a palette
* entry but indicates that the text foreground color should be used
* instead (to be set up by the application outside of FreeType).
*
* The color palette can be retrieved with @FT_Palette_Select.
*
* @return:
* Value~1 if everything is OK. If there are no more layers (or if there
* are no layers at all), value~0 gets returned. In case of an error,
* value~0 is returned also.
*
* @note:
* This function is necessary if you want to handle glyph layers by
* yourself. In particular, functions that operate with @FT_GlyphRec
* objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access
* to this information.
*
* Note that @FT_Render_Glyph is able to handle colored glyph layers
* automatically if the @FT_LOAD_COLOR flag is passed to a previous call
* to @FT_Load_Glyph. [This is an experimental feature.]
*
* @example:
* ```
* FT_Color* palette;
* FT_LayerIterator iterator;
*
* FT_Bool have_layers;
* FT_UInt layer_glyph_index;
* FT_UInt layer_color_index;
*
*
* error = FT_Palette_Select( face, palette_index, &palette );
* if ( error )
* palette = NULL;
*
* iterator.p = NULL;
* have_layers = FT_Get_Color_Glyph_Layer( face,
* glyph_index,
* &layer_glyph_index,
* &layer_color_index,
* &iterator );
*
* if ( palette && have_layers )
* {
* do
* {
* FT_Color layer_color;
*
*
* if ( layer_color_index == 0xFFFF )
* layer_color = text_foreground_color;
* else
* layer_color = palette[layer_color_index];
*
* // Load and render glyph `layer_glyph_index', then
* // blend resulting pixmap (using color `layer_color')
* // with previously created pixmaps.
*
* } while ( FT_Get_Color_Glyph_Layer( face,
* glyph_index,
* &layer_glyph_index,
* &layer_color_index,
* &iterator ) );
* }
* ```
*/
FT_EXPORT( FT_Bool )
FT_Get_Color_Glyph_Layer( FT_Face face,
FT_UInt base_glyph,
FT_UInt *aglyph_index,
FT_UInt *acolor_index,
FT_LayerIterator* iterator );
/**************************************************************************
*
* @enum:
* FT_PaintFormat
*
* @description:
* Enumeration describing the different paint format types of the v1
* extensions to the 'COLR' table, see
* 'https://github.com/googlefonts/colr-gradients-spec'.
*
* The enumeration values losely correspond with the format numbers of
* the specification: FreeType always returns a fully specified 'Paint'
* structure for the 'Transform', 'Translate', 'Scale', 'Rotate', and
* 'Skew' table types even though the specification has different formats
* depending on whether or not a center is specified, whether the scale
* is uniform in x and y~direction or not, etc. Also, only non-variable
* format identifiers are listed in this enumeration; as soon as support
* for variable 'COLR' v1 fonts is implemented, interpolation is
* performed dependent on axis coordinates, which are configured on the
* @FT_Face through @FT_Set_Var_Design_Coordinates. This implies that
* always static, readily interpolated values are returned in the 'Paint'
* structures.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef enum FT_PaintFormat_
{
FT_COLR_PAINTFORMAT_COLR_LAYERS = 1,
FT_COLR_PAINTFORMAT_SOLID = 2,
FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4,
FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6,
FT_COLR_PAINTFORMAT_SWEEP_GRADIENT = 8,
FT_COLR_PAINTFORMAT_GLYPH = 10,
FT_COLR_PAINTFORMAT_COLR_GLYPH = 11,
FT_COLR_PAINTFORMAT_TRANSFORM = 12,
FT_COLR_PAINTFORMAT_TRANSLATE = 14,
FT_COLR_PAINTFORMAT_SCALE = 16,
FT_COLR_PAINTFORMAT_ROTATE = 24,
FT_COLR_PAINTFORMAT_SKEW = 28,
FT_COLR_PAINTFORMAT_COMPOSITE = 32,
FT_COLR_PAINT_FORMAT_MAX = 33,
FT_COLR_PAINTFORMAT_UNSUPPORTED = 255
} FT_PaintFormat;
/**************************************************************************
*
* @struct:
* FT_ColorStopIterator
*
* @description:
* This iterator object is needed for @FT_Get_Colorline_Stops. It keeps
* state while iterating over the stops of an @FT_ColorLine,
* representing the `ColorLine` struct of the v1 extensions to 'COLR',
* see 'https://github.com/googlefonts/colr-gradients-spec'.
*
* @fields:
* num_color_stops ::
* The number of color stops for the requested glyph index. Set by
* @FT_Get_Colorline_Stops.
*
* current_color_stop ::
* The current color stop. Set by @FT_Get_Colorline_Stops.
*
* p ::
* An opaque pointer into 'COLR' table data. The caller must set this
* to `NULL` before the first call of @FT_Get_Colorline_Stops.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_ColorStopIterator_
{
FT_UInt num_color_stops;
FT_UInt current_color_stop;
FT_Byte* p;
} FT_ColorStopIterator;
/**************************************************************************
*
* @struct:
* FT_ColorIndex
*
* @description:
* A structure representing a `ColorIndex` value of the 'COLR' v1
* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
*
* @fields:
* palette_index ::
* The palette index into a 'CPAL' palette.
*
* alpha ::
* Alpha transparency value multiplied with the value from 'CPAL'.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_ColorIndex_
{
FT_UInt16 palette_index;
FT_F2Dot14 alpha;
} FT_ColorIndex;
/**************************************************************************
*
* @struct:
* FT_ColorStop
*
* @description:
* A structure representing a `ColorStop` value of the 'COLR' v1
* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
*
* @fields:
* stop_offset ::
* The stop offset between 0 and 1 along the gradient.
*
* color ::
* The color information for this stop, see @FT_ColorIndex.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_ColorStop_
{
FT_F2Dot14 stop_offset;
FT_ColorIndex color;
} FT_ColorStop;
/**************************************************************************
*
* @enum:
* FT_PaintExtend
*
* @description:
* An enumeration representing the 'Extend' mode of the 'COLR' v1
* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
* It describes how the gradient fill continues at the other boundaries.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef enum FT_PaintExtend_
{
FT_COLR_PAINT_EXTEND_PAD = 0,
FT_COLR_PAINT_EXTEND_REPEAT = 1,
FT_COLR_PAINT_EXTEND_REFLECT = 2
} FT_PaintExtend;
/**************************************************************************
*
* @struct:
* FT_ColorLine
*
* @description:
* A structure representing a `ColorLine` value of the 'COLR' v1
* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
* It describes a list of color stops along the defined gradient.
*
* @fields:
* extend ::
* The extend mode at the outer boundaries, see @FT_PaintExtend.
*
* color_stop_iterator ::
* The @FT_ColorStopIterator used to enumerate and retrieve the
* actual @FT_ColorStop's.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_ColorLine_
{
FT_PaintExtend extend;
FT_ColorStopIterator color_stop_iterator;
} FT_ColorLine;
/**************************************************************************
*
* @struct:
* FT_Affine23
*
* @description:
* A structure used to store a 2x3 matrix. Coefficients are in
* 16.16 fixed-point format. The computation performed is
*
* ```
* x' = x*xx + y*xy + dx
* y' = x*yx + y*yy + dy
* ```
*
* @fields:
* xx ::
* Matrix coefficient.
*
* xy ::
* Matrix coefficient.
*
* dx ::
* x translation.
*
* yx ::
* Matrix coefficient.
*
* yy ::
* Matrix coefficient.
*
* dy ::
* y translation.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_Affine_23_
{
FT_Fixed xx, xy, dx;
FT_Fixed yx, yy, dy;
} FT_Affine23;
/**************************************************************************
*
* @enum:
* FT_Composite_Mode
*
* @description:
* An enumeration listing the 'COLR' v1 composite modes used in
* @FT_PaintComposite. For more details on each paint mode, see
* 'https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators'.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef enum FT_Composite_Mode_
{
FT_COLR_COMPOSITE_CLEAR = 0,
FT_COLR_COMPOSITE_SRC = 1,
FT_COLR_COMPOSITE_DEST = 2,
FT_COLR_COMPOSITE_SRC_OVER = 3,
FT_COLR_COMPOSITE_DEST_OVER = 4,
FT_COLR_COMPOSITE_SRC_IN = 5,
FT_COLR_COMPOSITE_DEST_IN = 6,
FT_COLR_COMPOSITE_SRC_OUT = 7,
FT_COLR_COMPOSITE_DEST_OUT = 8,
FT_COLR_COMPOSITE_SRC_ATOP = 9,
FT_COLR_COMPOSITE_DEST_ATOP = 10,
FT_COLR_COMPOSITE_XOR = 11,
FT_COLR_COMPOSITE_PLUS = 12,
FT_COLR_COMPOSITE_SCREEN = 13,
FT_COLR_COMPOSITE_OVERLAY = 14,
FT_COLR_COMPOSITE_DARKEN = 15,
FT_COLR_COMPOSITE_LIGHTEN = 16,
FT_COLR_COMPOSITE_COLOR_DODGE = 17,
FT_COLR_COMPOSITE_COLOR_BURN = 18,
FT_COLR_COMPOSITE_HARD_LIGHT = 19,
FT_COLR_COMPOSITE_SOFT_LIGHT = 20,
FT_COLR_COMPOSITE_DIFFERENCE = 21,
FT_COLR_COMPOSITE_EXCLUSION = 22,
FT_COLR_COMPOSITE_MULTIPLY = 23,
FT_COLR_COMPOSITE_HSL_HUE = 24,
FT_COLR_COMPOSITE_HSL_SATURATION = 25,
FT_COLR_COMPOSITE_HSL_COLOR = 26,
FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27,
FT_COLR_COMPOSITE_MAX = 28
} FT_Composite_Mode;
/**************************************************************************
*
* @struct:
* FT_OpaquePaint
*
* @description:
* A structure representing an offset to a `Paint` value stored in any
* of the paint tables of a 'COLR' v1 font. Compare Offset<24> there.
* When 'COLR' v1 paint tables represented by FreeType objects such as
* @FT_PaintColrLayers, @FT_PaintComposite, or @FT_PaintTransform
* reference downstream nested paint tables, we do not immediately
* retrieve them but encapsulate their location in this type. Use
* @FT_Get_Paint to retrieve the actual @FT_COLR_Paint object that
* describes the details of the respective paint table.
*
* @fields:
* p ::
* An internal offset to a Paint table, needs to be set to NULL before
* passing this struct as an argument to @FT_Get_Paint.
*
* insert_root_transform ::
* An internal boolean to track whether an initial root transform is
* to be provided. Do not set this value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_Opaque_Paint_
{
FT_Byte* p;
FT_Bool insert_root_transform;
} FT_OpaquePaint;
/**************************************************************************
*
* @struct:
* FT_PaintColrLayers
*
* @description:
* A structure representing a `PaintColrLayers` table of a 'COLR' v1
* font. This table describes a set of layers that are to be composited
* with composite mode `FT_COLR_COMPOSITE_SRC_OVER`. The return value
* of this function is an @FT_LayerIterator initialized so that it can
* be used with @FT_Get_Paint_Layers to retrieve the @FT_OpaquePaint
* objects as references to each layer.
*
* @fields:
* layer_iterator ::
* The layer iterator that describes the layers of this paint.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintColrLayers_
{
FT_LayerIterator layer_iterator;
} FT_PaintColrLayers;
/**************************************************************************
*
* @struct:
* FT_PaintSolid
*
* @description:
* A structure representing a `PaintSolid` value of the 'COLR' v1
* extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
* Using a `PaintSolid` value means that the glyph layer filled with
* this paint is solid-colored and does not contain a gradient.
*
* @fields:
* color ::
* The color information for this solid paint, see @FT_ColorIndex.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintSolid_
{
FT_ColorIndex color;
} FT_PaintSolid;
/**************************************************************************
*
* @struct:
* FT_PaintLinearGradient
*
* @description:
* A structure representing a `PaintLinearGradient` value of the 'COLR'
* v1 extensions, see
* 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
* layer filled with this paint is drawn filled with a linear gradient.
*
* @fields:
* colorline ::
* The @FT_ColorLine information for this paint, i.e., the list of
* color stops along the gradient.
*
* p0 ::
* The starting point of the gradient definition in font units
* represented as a 16.16 fixed-point `FT_Vector`.
*
* p1 ::
* The end point of the gradient definition in font units
* represented as a 16.16 fixed-point `FT_Vector`.
*
* p2 ::
* Optional point~p2 to rotate the gradient in font units
* represented as a 16.16 fixed-point `FT_Vector`.
* Otherwise equal to~p0.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintLinearGradient_
{
FT_ColorLine colorline;
/* TODO: Potentially expose those as x0, y0 etc. */
FT_Vector p0;
FT_Vector p1;
FT_Vector p2;
} FT_PaintLinearGradient;
/**************************************************************************
*
* @struct:
* FT_PaintRadialGradient
*
* @description:
* A structure representing a `PaintRadialGradient` value of the 'COLR'
* v1 extensions, see
* 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
* layer filled with this paint is drawn filled filled with a radial
* gradient.
*
* @fields:
* colorline ::
* The @FT_ColorLine information for this paint, i.e., the list of
* color stops along the gradient.
*
* c0 ::
* The center of the starting point of the radial gradient in font
* units represented as a 16.16 fixed-point `FT_Vector`.
*
* r0 ::
* The radius of the starting circle of the radial gradient in font
* units represented as a 16.16 fixed-point value.
*
* c1 ::
* The center of the end point of the radial gradient in font units
* represented as a 16.16 fixed-point `FT_Vector`.
*
* r1 ::
* The radius of the end circle of the radial gradient in font
* units represented as a 16.16 fixed-point value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintRadialGradient_
{
FT_ColorLine colorline;
FT_Vector c0;
FT_Pos r0;
FT_Vector c1;
FT_Pos r1;
} FT_PaintRadialGradient;
/**************************************************************************
*
* @struct:
* FT_PaintSweepGradient
*
* @description:
* A structure representing a `PaintSweepGradient` value of the 'COLR'
* v1 extensions, see
* 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
* layer filled with this paint is drawn filled with a sweep gradient
* from `start_angle` to `end_angle`.
*
* @fields:
* colorline ::
* The @FT_ColorLine information for this paint, i.e., the list of
* color stops along the gradient.
*
* center ::
* The center of the sweep gradient in font units represented as a
* vector of 16.16 fixed-point values.
*
* start_angle ::
* The start angle of the sweep gradient in 16.16 fixed-point
* format specifying degrees divided by 180.0 (as in the
* spec). Multiply by 180.0f to receive degrees value. Values are
* given counter-clockwise, starting from the (positive) y~axis.
*
* end_angle ::
* The end angle of the sweep gradient in 16.16 fixed-point
* format specifying degrees divided by 180.0 (as in the
* spec). Multiply by 180.0f to receive degrees value. Values are
* given counter-clockwise, starting from the (positive) y~axis.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintSweepGradient_
{
FT_ColorLine colorline;
FT_Vector center;
FT_Fixed start_angle;
FT_Fixed end_angle;
} FT_PaintSweepGradient;
/**************************************************************************
*
* @struct:
* FT_PaintGlyph
*
* @description:
* A structure representing a 'COLR' v1 `PaintGlyph` paint table.
*
* @fields:
* paint ::
* An opaque paint object pointing to a `Paint` table that serves as
* the fill for the glyph ID.
*
* glyphID ::
* The glyph ID from the 'glyf' table, which serves as the contour
* information that is filled with paint.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintGlyph_
{
FT_OpaquePaint paint;
FT_UInt glyphID;
} FT_PaintGlyph;
/**************************************************************************
*
* @struct:
* FT_PaintColrGlyph
*
* @description:
* A structure representing a 'COLR' v1 `PaintColorGlyph` paint table.
*
* @fields:
* glyphID ::
* The glyph ID from the `BaseGlyphV1List` table that is drawn for
* this paint.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintColrGlyph_
{
FT_UInt glyphID;
} FT_PaintColrGlyph;
/**************************************************************************
*
* @struct:
* FT_PaintTransform
*
* @description:
* A structure representing a 'COLR' v1 `PaintTransform` paint table.
*
* @fields:
* paint ::
* An opaque paint that is subject to being transformed.
*
* affine ::
* A 2x3 transformation matrix in @FT_Affine23 format containing
* 16.16 fixed-point values.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintTransform_
{
FT_OpaquePaint paint;
FT_Affine23 affine;
} FT_PaintTransform;
/**************************************************************************
*
* @struct:
* FT_PaintTranslate
*
* @description:
* A structure representing a 'COLR' v1 `PaintTranslate` paint table.
* Used for translating downstream paints by a given x and y~delta.
*
* @fields:
* paint ::
* An @FT_OpaquePaint object referencing the paint that is to be
* rotated.
*
* dx ::
* Translation in x~direction in font units represented as a
* 16.16 fixed-point value.
*
* dy ::
* Translation in y~direction in font units represented as a
* 16.16 fixed-point value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintTranslate_
{
FT_OpaquePaint paint;
FT_Fixed dx;
FT_Fixed dy;
} FT_PaintTranslate;
/**************************************************************************
*
* @struct:
* FT_PaintScale
*
* @description:
* A structure representing all of the 'COLR' v1 'PaintScale*' paint
* tables. Used for scaling downstream paints by a given x and y~scale,
* with a given center. This structure is used for all 'PaintScale*'
* types that are part of specification; fields of this structure are
* filled accordingly. If there is a center, the center values are set,
* otherwise they are set to the zero coordinate. If the source font
* file has 'PaintScaleUniform*' set, the scale values are set
* accordingly to the same value.
*
* @fields:
* paint ::
* An @FT_OpaquePaint object referencing the paint that is to be
* scaled.
*
* scale_x ::
* Scale factor in x~direction represented as a
* 16.16 fixed-point value.
*
* scale_y ::
* Scale factor in y~direction represented as a
* 16.16 fixed-point value.
*
* center_x ::
* x~coordinate of center point to scale from represented as a
* 16.16 fixed-point value.
*
* center_y ::
* y~coordinate of center point to scale from represented as a
* 16.16 fixed-point value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward-compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintScale_
{
FT_OpaquePaint paint;
FT_Fixed scale_x;
FT_Fixed scale_y;
FT_Fixed center_x;
FT_Fixed center_y;
} FT_PaintScale;
/**************************************************************************
*
* @struct:
* FT_PaintRotate
*
* @description:
* A structure representing a 'COLR' v1 `PaintRotate` paint table. Used
* for rotating downstream paints with a given center and angle.
*
* @fields:
* paint ::
* An @FT_OpaquePaint object referencing the paint that is to be
* rotated.
*
* angle ::
* The rotation angle that is to be applied in degrees divided by
* 180.0 (as in the spec) represented as a 16.16 fixed-point
* value. Multiply by 180.0f to receive degrees value.
*
* center_x ::
* The x~coordinate of the pivot point of the rotation in font
* units) represented as a 16.16 fixed-point value.
*
* center_y ::
* The y~coordinate of the pivot point of the rotation in font
* units represented as a 16.16 fixed-point value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintRotate_
{
FT_OpaquePaint paint;
FT_Fixed angle;
FT_Fixed center_x;
FT_Fixed center_y;
} FT_PaintRotate;
/**************************************************************************
*
* @struct:
* FT_PaintSkew
*
* @description:
* A structure representing a 'COLR' v1 `PaintSkew` paint table. Used
* for skewing or shearing downstream paints by a given center and
* angle.
*
* @fields:
* paint ::
* An @FT_OpaquePaint object referencing the paint that is to be
* skewed.
*
* x_skew_angle ::
* The skewing angle in x~direction in degrees divided by 180.0
* (as in the spec) represented as a 16.16 fixed-point
* value. Multiply by 180.0f to receive degrees.
*
* y_skew_angle ::
* The skewing angle in y~direction in degrees divided by 180.0
* (as in the spec) represented as a 16.16 fixed-point
* value. Multiply by 180.0f to receive degrees.
*
* center_x ::
* The x~coordinate of the pivot point of the skew in font units
* represented as a 16.16 fixed-point value.
*
* center_y ::
* The y~coordinate of the pivot point of the skew in font units
* represented as a 16.16 fixed-point value.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintSkew_
{
FT_OpaquePaint paint;
FT_Fixed x_skew_angle;
FT_Fixed y_skew_angle;
FT_Fixed center_x;
FT_Fixed center_y;
} FT_PaintSkew;
/**************************************************************************
*
* @struct:
* FT_PaintComposite
*
* @description:
* A structure representing a 'COLR'v1 `PaintComposite` paint table.
* Used for compositing two paints in a 'COLR' v1 directed acycling
* graph.
*
* @fields:
* source_paint ::
* An @FT_OpaquePaint object referencing the source that is to be
* composited.
*
* composite_mode ::
* An @FT_Composite_Mode enum value determining the composition
* operation.
*
* backdrop_paint ::
* An @FT_OpaquePaint object referencing the backdrop paint that
* `source_paint` is composited onto.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_PaintComposite_
{
FT_OpaquePaint source_paint;
FT_Composite_Mode composite_mode;
FT_OpaquePaint backdrop_paint;
} FT_PaintComposite;
/**************************************************************************
*
* @union:
* FT_COLR_Paint
*
* @description:
* A union object representing format and details of a paint table of a
* 'COLR' v1 font, see
* 'https://github.com/googlefonts/colr-gradients-spec'. Use
* @FT_Get_Paint to retrieve a @FT_COLR_Paint for an @FT_OpaquePaint
* object.
*
* @fields:
* format ::
* The gradient format for this Paint structure.
*
* u ::
* Union of all paint table types:
*
* * @FT_PaintColrLayers
* * @FT_PaintGlyph
* * @FT_PaintSolid
* * @FT_PaintLinearGradient
* * @FT_PaintRadialGradient
* * @FT_PaintSweepGradient
* * @FT_PaintTransform
* * @FT_PaintTranslate
* * @FT_PaintRotate
* * @FT_PaintSkew
* * @FT_PaintComposite
* * @FT_PaintColrGlyph
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_COLR_Paint_
{
FT_PaintFormat format;
union
{
FT_PaintColrLayers colr_layers;
FT_PaintGlyph glyph;
FT_PaintSolid solid;
FT_PaintLinearGradient linear_gradient;
FT_PaintRadialGradient radial_gradient;
FT_PaintSweepGradient sweep_gradient;
FT_PaintTransform transform;
FT_PaintTranslate translate;
FT_PaintScale scale;
FT_PaintRotate rotate;
FT_PaintSkew skew;
FT_PaintComposite composite;
FT_PaintColrGlyph colr_glyph;
} u;
} FT_COLR_Paint;
/**************************************************************************
*
* @enum:
* FT_Color_Root_Transform
*
* @description:
* An enumeration to specify whether @FT_Get_Color_Glyph_Paint is to
* return a root transform to configure the client's graphics context
* matrix.
*
* @values:
* FT_COLOR_INCLUDE_ROOT_TRANSFORM ::
* Do include the root transform as the initial @FT_COLR_Paint object.
*
* FT_COLOR_NO_ROOT_TRANSFORM ::
* Do not output an initial root transform.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef enum FT_Color_Root_Transform_
{
FT_COLOR_INCLUDE_ROOT_TRANSFORM,
FT_COLOR_NO_ROOT_TRANSFORM,
FT_COLOR_ROOT_TRANSFORM_MAX
} FT_Color_Root_Transform;
/**************************************************************************
*
* @struct:
* FT_ClipBox
*
* @description:
* A structure representing a 'COLR' v1 'ClipBox' table. 'COLR' v1
* glyphs may optionally define a clip box for aiding allocation or
* defining a maximum drawable region. Use @FT_Get_Color_Glyph_ClipBox
* to retrieve it.
*
* @fields:
* bottom_left ::
* The bottom left corner of the clip box as an @FT_Vector with
* fixed-point coordinates in 26.6 format.
*
* top_left ::
* The top left corner of the clip box as an @FT_Vector with
* fixed-point coordinates in 26.6 format.
*
* top_right ::
* The top right corner of the clip box as an @FT_Vector with
* fixed-point coordinates in 26.6 format.
*
* bottom_right ::
* The bottom right corner of the clip box as an @FT_Vector with
* fixed-point coordinates in 26.6 format.
*
* @since:
* 2.12 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
typedef struct FT_ClipBox_
{
FT_Vector bottom_left;
FT_Vector top_left;
FT_Vector top_right;
FT_Vector bottom_right;
} FT_ClipBox;
/**************************************************************************
*
* @function:
* FT_Get_Color_Glyph_Paint
*
* @description:
* This is the starting point and interface to color gradient
* information in a 'COLR' v1 table in OpenType fonts to recursively
* retrieve the paint tables for the directed acyclic graph of a colored
* glyph, given a glyph ID.
*
* https://github.com/googlefonts/colr-gradients-spec
*
* In a 'COLR' v1 font, each color glyph defines a directed acyclic
* graph of nested paint tables, such as `PaintGlyph`, `PaintSolid`,
* `PaintLinearGradient`, `PaintRadialGradient`, and so on. Using this
* function and specifying a glyph ID, one retrieves the root paint
* table for this glyph ID.
*
* This function allows control whether an initial root transform is
* returned to configure scaling, transform, and translation correctly
* on the client's graphics context. The initial root transform is
* computed and returned according to the values configured for @FT_Size
* and @FT_Set_Transform on the @FT_Face object, see below for details
* of the `root_transform` parameter. This has implications for a
* client 'COLR' v1 implementation: When this function returns an
* initially computed root transform, at the time of executing the
* @FT_PaintGlyph operation, the contours should be retrieved using
* @FT_Load_Glyph at unscaled, untransformed size. This is because the
* root transform applied to the graphics context will take care of
* correct scaling.
*
* Alternatively, to allow hinting of contours, at the time of executing
* @FT_Load_Glyph, the current graphics context transformation matrix
* can be decomposed into a scaling matrix and a remainder, and
* @FT_Load_Glyph can be used to retrieve the contours at scaled size.
* Care must then be taken to blit or clip to the graphics context with
* taking this remainder transformation into account.
*
* @input:
* face ::
* A handle to the parent face object.
*
* base_glyph ::
* The glyph index for which to retrieve the root paint table.
*
* root_transform ::
* Specifies whether an initially computed root is returned by the
* @FT_PaintTransform operation to account for the activated size
* (see @FT_Activate_Size) and the configured transform and translate
* (see @FT_Set_Transform).
*
* This root transform is returned before nodes of the glyph graph of
* the font are returned. Subsequent @FT_COLR_Paint structures
* contain unscaled and untransformed values. The inserted root
* transform enables the client application to apply an initial
* transform to its graphics context. When executing subsequent
* FT_COLR_Paint operations, values from @FT_COLR_Paint operations
* will ultimately be correctly scaled because of the root transform
* applied to the graphics context. Use
* @FT_COLOR_INCLUDE_ROOT_TRANSFORM to include the root transform, use
* @FT_COLOR_NO_ROOT_TRANSFORM to not include it. The latter may be
* useful when traversing the 'COLR' v1 glyph graph and reaching a
* @FT_PaintColrGlyph. When recursing into @FT_PaintColrGlyph and
* painting that inline, no additional root transform is needed as it
* has already been applied to the graphics context at the beginning
* of drawing this glyph.
*
* @output:
* paint ::
* The @FT_OpaquePaint object that references the actual paint table.
*
* The respective actual @FT_COLR_Paint object is retrieved via
* @FT_Get_Paint.
*
* @return:
* Value~1 if everything is OK. If no color glyph is found, or the root
* paint could not be retrieved, value~0 gets returned. In case of an
* error, value~0 is returned also.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
FT_EXPORT( FT_Bool )
FT_Get_Color_Glyph_Paint( FT_Face face,
FT_UInt base_glyph,
FT_Color_Root_Transform root_transform,
FT_OpaquePaint* paint );
/**************************************************************************
*
* @function:
* FT_Get_Color_Glyph_ClipBox
*
* @description:
* Search for a 'COLR' v1 clip box for the specified `base_glyph` and
* fill the `clip_box` parameter with the 'COLR' v1 'ClipBox' information
* if one is found.
*
* @input:
* face ::
* A handle to the parent face object.
*
* base_glyph ::
* The glyph index for which to retrieve the clip box.
*
* @output:
* clip_box ::
* The clip box for the requested `base_glyph` if one is found. The
* clip box is computed taking scale and transformations configured on
* the @FT_Face into account. @FT_ClipBox contains @FT_Vector values
* in 26.6 format.
*
* @return:
* Value~1 if a clip box is found. If no clip box is found or an error
* occured, value~0 is returned.
*
* @note:
* To retrieve the clip box in font units, reset scale to units-per-em
* and remove transforms configured using @FT_Set_Transform.
*
* @since:
* 2.12 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
FT_EXPORT( FT_Bool )
FT_Get_Color_Glyph_ClipBox( FT_Face face,
FT_UInt base_glyph,
FT_ClipBox* clip_box );
/**************************************************************************
*
* @function:
* FT_Get_Paint_Layers
*
* @description:
* Access the layers of a `PaintColrLayers` table.
*
* If the root paint of a color glyph, or a nested paint of a 'COLR'
* glyph is a `PaintColrLayers` table, this function retrieves the
* layers of the `PaintColrLayers` table.
*
* The @FT_PaintColrLayers object contains an @FT_LayerIterator, which
* is used here to iterate over the layers. Each layer is returned as
* an @FT_OpaquePaint object, which then can be used with @FT_Get_Paint
* to retrieve the actual paint object.
*
* @input:
* face ::
* A handle to the parent face object.
*
* @inout:
* iterator ::
* The @FT_LayerIterator from an @FT_PaintColrLayers object, for which
* the layers are to be retrieved. The internal state of the iterator
* is incremented after one call to this function for retrieving one
* layer.
*
* @output:
* paint ::
* The @FT_OpaquePaint object that references the actual paint table.
* The respective actual @FT_COLR_Paint object is retrieved via
* @FT_Get_Paint.
*
* @return:
* Value~1 if everything is OK. Value~0 gets returned when the paint
* object can not be retrieved or any other error occurs.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
FT_EXPORT( FT_Bool )
FT_Get_Paint_Layers( FT_Face face,
FT_LayerIterator* iterator,
FT_OpaquePaint* paint );
/**************************************************************************
*
* @function:
* FT_Get_Colorline_Stops
*
* @description:
* This is an interface to color gradient information in a 'COLR' v1
* table in OpenType fonts to iteratively retrieve the gradient and
* solid fill information for colored glyph layers for a specified glyph
* ID.
*
* https://github.com/googlefonts/colr-gradients-spec
*
* @input:
* face ::
* A handle to the parent face object.
*
* @inout:
* iterator ::
* The retrieved @FT_ColorStopIterator, configured on an @FT_ColorLine,
* which in turn got retrieved via paint information in
* @FT_PaintLinearGradient or @FT_PaintRadialGradient.
*
* @output:
* color_stop ::
* Color index and alpha value for the retrieved color stop.
*
* @return:
* Value~1 if everything is OK. If there are no more color stops,
* value~0 gets returned. In case of an error, value~0 is returned
* also.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
FT_EXPORT( FT_Bool )
FT_Get_Colorline_Stops( FT_Face face,
FT_ColorStop* color_stop,
FT_ColorStopIterator* iterator );
/**************************************************************************
*
* @function:
* FT_Get_Paint
*
* @description:
* Access the details of a paint using an @FT_OpaquePaint opaque paint
* object, which internally stores the offset to the respective `Paint`
* object in the 'COLR' table.
*
* @input:
* face ::
* A handle to the parent face object.
*
* opaque_paint ::
* The opaque paint object for which the underlying @FT_COLR_Paint
* data is to be retrieved.
*
* @output:
* paint ::
* The specific @FT_COLR_Paint object containing information coming
* from one of the font's `Paint*` tables.
*
* @return:
* Value~1 if everything is OK. Value~0 if no details can be found for
* this paint or any other error occured.
*
* @since:
* 2.11 -- **currently experimental only!** There might be changes
* without retaining backward compatibility of both the API and ABI.
*
*/
FT_EXPORT( FT_Bool )
FT_Get_Paint( FT_Face face,
FT_OpaquePaint opaque_paint,
FT_COLR_Paint* paint );
/* */
FT_END_HEADER
#endif /* FTCOLOR_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftcolor.h
|
C++
|
gpl-3.0
| 54,102
|
/****************************************************************************
*
* ftdriver.h
*
* FreeType API for controlling driver modules (specification only).
*
* Copyright (C) 2017-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTDRIVER_H_
#define FTDRIVER_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* auto_hinter
*
* @title:
* The auto-hinter
*
* @abstract:
* Controlling the auto-hinting module.
*
* @description:
* While FreeType's auto-hinter doesn't expose API functions by itself,
* it is possible to control its behaviour with @FT_Property_Set and
* @FT_Property_Get. The following lists the available properties
* together with the necessary macros and structures.
*
* Note that the auto-hinter's module name is 'autofitter' for historical
* reasons.
*
* Available properties are @increase-x-height, @no-stem-darkening
* (experimental), @darkening-parameters (experimental),
* @glyph-to-script-map (experimental), @fallback-script (experimental),
* and @default-script (experimental), as documented in the @properties
* section.
*
*/
/**************************************************************************
*
* @section:
* cff_driver
*
* @title:
* The CFF driver
*
* @abstract:
* Controlling the CFF driver module.
*
* @description:
* While FreeType's CFF driver doesn't expose API functions by itself, it
* is possible to control its behaviour with @FT_Property_Set and
* @FT_Property_Get.
*
* The CFF driver's module name is 'cff'.
*
* Available properties are @hinting-engine, @no-stem-darkening,
* @darkening-parameters, and @random-seed, as documented in the
* @properties section.
*
*
* **Hinting and anti-aliasing principles of the new engine**
*
* The rasterizer is positioning horizontal features (e.g., ascender
* height & x-height, or crossbars) on the pixel grid and minimizing the
* amount of anti-aliasing applied to them, while placing vertical
* features (vertical stems) on the pixel grid without hinting, thus
* representing the stem position and weight accurately. Sometimes the
* vertical stems may be only partially black. In this context,
* 'anti-aliasing' means that stems are not positioned exactly on pixel
* borders, causing a fuzzy appearance.
*
* There are two principles behind this approach.
*
* 1) No hinting in the horizontal direction: Unlike 'superhinted'
* TrueType, which changes glyph widths to accommodate regular
* inter-glyph spacing, Adobe's approach is 'faithful to the design' in
* representing both the glyph width and the inter-glyph spacing designed
* for the font. This makes the screen display as close as it can be to
* the result one would get with infinite resolution, while preserving
* what is considered the key characteristics of each glyph. Note that
* the distances between unhinted and grid-fitted positions at small
* sizes are comparable to kerning values and thus would be noticeable
* (and distracting) while reading if hinting were applied.
*
* One of the reasons to not hint horizontally is anti-aliasing for LCD
* screens: The pixel geometry of modern displays supplies three vertical
* subpixels as the eye moves horizontally across each visible pixel. On
* devices where we can be certain this characteristic is present a
* rasterizer can take advantage of the subpixels to add increments of
* weight. In Western writing systems this turns out to be the more
* critical direction anyway; the weights and spacing of vertical stems
* (see above) are central to Armenian, Cyrillic, Greek, and Latin type
* designs. Even when the rasterizer uses greyscale anti-aliasing instead
* of color (a necessary compromise when one doesn't know the screen
* characteristics), the unhinted vertical features preserve the design's
* weight and spacing much better than aliased type would.
*
* 2) Alignment in the vertical direction: Weights and spacing along the
* y~axis are less critical; what is much more important is the visual
* alignment of related features (like cap-height and x-height). The
* sense of alignment for these is enhanced by the sharpness of grid-fit
* edges, while the cruder vertical resolution (full pixels instead of
* 1/3 pixels) is less of a problem.
*
* On the technical side, horizontal alignment zones for ascender,
* x-height, and other important height values (traditionally called
* 'blue zones') as defined in the font are positioned independently,
* each being rounded to the nearest pixel edge, taking care of overshoot
* suppression at small sizes, stem darkening, and scaling.
*
* Hstems (this is, hint values defined in the font to help align
* horizontal features) that fall within a blue zone are said to be
* 'captured' and are aligned to that zone. Uncaptured stems are moved
* in one of four ways, top edge up or down, bottom edge up or down.
* Unless there are conflicting hstems, the smallest movement is taken to
* minimize distortion.
*
*/
/**************************************************************************
*
* @section:
* pcf_driver
*
* @title:
* The PCF driver
*
* @abstract:
* Controlling the PCF driver module.
*
* @description:
* While FreeType's PCF driver doesn't expose API functions by itself, it
* is possible to control its behaviour with @FT_Property_Set and
* @FT_Property_Get. Right now, there is a single property
* @no-long-family-names available if FreeType is compiled with
* PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
*
* The PCF driver's module name is 'pcf'.
*
*/
/**************************************************************************
*
* @section:
* t1_cid_driver
*
* @title:
* The Type 1 and CID drivers
*
* @abstract:
* Controlling the Type~1 and CID driver modules.
*
* @description:
* It is possible to control the behaviour of FreeType's Type~1 and
* Type~1 CID drivers with @FT_Property_Set and @FT_Property_Get.
*
* Behind the scenes, both drivers use the Adobe CFF engine for hinting;
* however, the used properties must be specified separately.
*
* The Type~1 driver's module name is 'type1'; the CID driver's module
* name is 't1cid'.
*
* Available properties are @hinting-engine, @no-stem-darkening,
* @darkening-parameters, and @random-seed, as documented in the
* @properties section.
*
* Please see the @cff_driver section for more details on the new hinting
* engine.
*
*/
/**************************************************************************
*
* @section:
* tt_driver
*
* @title:
* The TrueType driver
*
* @abstract:
* Controlling the TrueType driver module.
*
* @description:
* While FreeType's TrueType driver doesn't expose API functions by
* itself, it is possible to control its behaviour with @FT_Property_Set
* and @FT_Property_Get.
*
* The TrueType driver's module name is 'truetype'; a single property
* @interpreter-version is available, as documented in the @properties
* section.
*
* To help understand the differences between interpreter versions, we
* introduce a list of definitions, kindly provided by Greg Hitchcock.
*
* _Bi-Level Rendering_
*
* Monochromatic rendering, exclusively used in the early days of
* TrueType by both Apple and Microsoft. Microsoft's GDI interface
* supported hinting of the right-side bearing point, such that the
* advance width could be non-linear. Most often this was done to
* achieve some level of glyph symmetry. To enable reasonable
* performance (e.g., not having to run hinting on all glyphs just to get
* the widths) there was a bit in the head table indicating if the side
* bearing was hinted, and additional tables, 'hdmx' and 'LTSH', to cache
* hinting widths across multiple sizes and device aspect ratios.
*
* _Font Smoothing_
*
* Microsoft's GDI implementation of anti-aliasing. Not traditional
* anti-aliasing as the outlines were hinted before the sampling. The
* widths matched the bi-level rendering.
*
* _ClearType Rendering_
*
* Technique that uses physical subpixels to improve rendering on LCD
* (and other) displays. Because of the higher resolution, many methods
* of improving symmetry in glyphs through hinting the right-side bearing
* were no longer necessary. This lead to what GDI calls 'natural
* widths' ClearType, see
* http://rastertragedy.com/RTRCh4.htm#Sec21. Since hinting
* has extra resolution, most non-linearity went away, but it is still
* possible for hints to change the advance widths in this mode.
*
* _ClearType Compatible Widths_
*
* One of the earliest challenges with ClearType was allowing the
* implementation in GDI to be selected without requiring all UI and
* documents to reflow. To address this, a compatible method of
* rendering ClearType was added where the font hints are executed once
* to determine the width in bi-level rendering, and then re-run in
* ClearType, with the difference in widths being absorbed in the font
* hints for ClearType (mostly in the white space of hints); see
* http://rastertragedy.com/RTRCh4.htm#Sec20. Somewhat by
* definition, compatible width ClearType allows for non-linear widths,
* but only when the bi-level version has non-linear widths.
*
* _ClearType Subpixel Positioning_
*
* One of the nice benefits of ClearType is the ability to more crisply
* display fractional widths; unfortunately, the GDI model of integer
* bitmaps did not support this. However, the WPF and Direct Write
* frameworks do support fractional widths. DWrite calls this 'natural
* mode', not to be confused with GDI's 'natural widths'. Subpixel
* positioning, in the current implementation of Direct Write,
* unfortunately does not support hinted advance widths, see
* http://rastertragedy.com/RTRCh4.htm#Sec22. Note that the
* TrueType interpreter fully allows the advance width to be adjusted in
* this mode, just the DWrite client will ignore those changes.
*
* _ClearType Backward Compatibility_
*
* This is a set of exceptions made in the TrueType interpreter to
* minimize hinting techniques that were problematic with the extra
* resolution of ClearType; see
* http://rastertragedy.com/RTRCh4.htm#Sec1 and
* https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx.
* This technique is not to be confused with ClearType compatible widths.
* ClearType backward compatibility has no direct impact on changing
* advance widths, but there might be an indirect impact on disabling
* some deltas. This could be worked around in backward compatibility
* mode.
*
* _Native ClearType Mode_
*
* (Not to be confused with 'natural widths'.) This mode removes all the
* exceptions in the TrueType interpreter when running with ClearType.
* Any issues on widths would still apply, though.
*
*/
/**************************************************************************
*
* @section:
* ot_svg_driver
*
* @title:
* The SVG driver
*
* @abstract:
* Controlling the external rendering of OT-SVG glyphs.
*
* @description:
* By default, FreeType can only load the 'SVG~' table of OpenType fonts
* if configuration macro `FT_CONFIG_OPTION_SVG` is defined. To make it
* render SVG glyphs, an external SVG rendering library is needed. All
* details on the interface between FreeType and the external library
* via function hooks can be found in section @svg_fonts.
*
* The OT-SVG driver's module name is 'ot-svg'; it supports a single
* property called @svg-hooks, documented below in the @properties
* section.
*
*/
/**************************************************************************
*
* @section:
* properties
*
* @title:
* Driver properties
*
* @abstract:
* Controlling driver modules.
*
* @description:
* Driver modules can be controlled by setting and unsetting properties,
* using the functions @FT_Property_Set and @FT_Property_Get. This
* section documents the available properties, together with auxiliary
* macros and structures.
*
*/
/**************************************************************************
*
* @enum:
* FT_HINTING_XXX
*
* @description:
* A list of constants used for the @hinting-engine property to select
* the hinting engine for CFF, Type~1, and CID fonts.
*
* @values:
* FT_HINTING_FREETYPE ::
* Use the old FreeType hinting engine.
*
* FT_HINTING_ADOBE ::
* Use the hinting engine contributed by Adobe.
*
* @since:
* 2.9
*
*/
#define FT_HINTING_FREETYPE 0
#define FT_HINTING_ADOBE 1
/* these constants (introduced in 2.4.12) are deprecated */
#define FT_CFF_HINTING_FREETYPE FT_HINTING_FREETYPE
#define FT_CFF_HINTING_ADOBE FT_HINTING_ADOBE
/**************************************************************************
*
* @property:
* hinting-engine
*
* @description:
* Thanks to Adobe, which contributed a new hinting (and parsing) engine,
* an application can select between 'freetype' and 'adobe' if compiled
* with `CFF_CONFIG_OPTION_OLD_ENGINE`. If this configuration macro
* isn't defined, 'hinting-engine' does nothing.
*
* The same holds for the Type~1 and CID modules if compiled with
* `T1_CONFIG_OPTION_OLD_ENGINE`.
*
* For the 'cff' module, the default engine is 'adobe'. For both the
* 'type1' and 't1cid' modules, the default engine is 'adobe', too.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable (using values 'adobe' or 'freetype').
*
* @example:
* The following example code demonstrates how to select Adobe's hinting
* engine for the 'cff' module (omitting the error handling).
*
* ```
* FT_Library library;
* FT_UInt hinting_engine = FT_HINTING_ADOBE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "cff",
* "hinting-engine", &hinting_engine );
* ```
*
* @since:
* 2.4.12 (for 'cff' module)
*
* 2.9 (for 'type1' and 't1cid' modules)
*
*/
/**************************************************************************
*
* @property:
* no-stem-darkening
*
* @description:
* All glyphs that pass through the auto-hinter will be emboldened unless
* this property is set to TRUE. The same is true for the CFF, Type~1,
* and CID font modules if the 'Adobe' engine is selected (which is the
* default).
*
* Stem darkening emboldens glyphs at smaller sizes to make them more
* readable on common low-DPI screens when using linear alpha blending
* and gamma correction, see @FT_Render_Glyph. When not using linear
* alpha blending and gamma correction, glyphs will appear heavy and
* fuzzy!
*
* Gamma correction essentially lightens fonts since shades of grey are
* shifted to higher pixel values (=~higher brightness) to match the
* original intention to the reality of our screens. The side-effect is
* that glyphs 'thin out'. Mac OS~X and Adobe's proprietary font
* rendering library implement a counter-measure: stem darkening at
* smaller sizes where shades of gray dominate. By emboldening a glyph
* slightly in relation to its pixel size, individual pixels get higher
* coverage of filled-in outlines and are therefore 'blacker'. This
* counteracts the 'thinning out' of glyphs, making text remain readable
* at smaller sizes.
*
* For the auto-hinter, stem-darkening is experimental currently and thus
* switched off by default (this is, `no-stem-darkening` is set to TRUE
* by default). Total consistency with the CFF driver is not achieved
* right now because the emboldening method differs and glyphs must be
* scaled down on the Y-axis to keep outline points inside their
* precomputed blue zones. The smaller the size (especially 9ppem and
* down), the higher the loss of emboldening versus the CFF driver.
*
* Note that stem darkening is never applied if @FT_LOAD_NO_SCALE is set.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable (using values 1 and 0 for 'on' and 'off', respectively). It
* can also be set per face using @FT_Face_Properties with
* @FT_PARAM_TAG_STEM_DARKENING.
*
* @example:
* ```
* FT_Library library;
* FT_Bool no_stem_darkening = TRUE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "cff",
* "no-stem-darkening", &no_stem_darkening );
* ```
*
* @since:
* 2.4.12 (for 'cff' module)
*
* 2.6.2 (for 'autofitter' module)
*
* 2.9 (for 'type1' and 't1cid' modules)
*
*/
/**************************************************************************
*
* @property:
* darkening-parameters
*
* @description:
* By default, the Adobe hinting engine, as used by the CFF, Type~1, and
* CID font drivers, darkens stems as follows (if the `no-stem-darkening`
* property isn't set):
*
* ```
* stem width <= 0.5px: darkening amount = 0.4px
* stem width = 1px: darkening amount = 0.275px
* stem width = 1.667px: darkening amount = 0.275px
* stem width >= 2.333px: darkening amount = 0px
* ```
*
* and piecewise linear in-between. At configuration time, these four
* control points can be set with the macro
* `CFF_CONFIG_OPTION_DARKENING_PARAMETERS`; the CFF, Type~1, and CID
* drivers share these values. At runtime, the control points can be
* changed using the `darkening-parameters` property (see the example
* below that demonstrates this for the Type~1 driver).
*
* The x~values give the stem width, and the y~values the darkening
* amount. The unit is 1000th of pixels. All coordinate values must be
* positive; the x~values must be monotonically increasing; the y~values
* must be monotonically decreasing and smaller than or equal to 500
* (corresponding to half a pixel); the slope of each linear piece must
* be shallower than -1 (e.g., -.4).
*
* The auto-hinter provides this property, too, as an experimental
* feature. See @no-stem-darkening for more.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable, using eight comma-separated integers without spaces. Here
* the above example, using `\` to break the line for readability.
*
* ```
* FREETYPE_PROPERTIES=\
* type1:darkening-parameters=500,300,1000,200,1500,100,2000,0
* ```
*
* @example:
* ```
* FT_Library library;
* FT_Int darken_params[8] = { 500, 300, // x1, y1
* 1000, 200, // x2, y2
* 1500, 100, // x3, y3
* 2000, 0 }; // x4, y4
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "type1",
* "darkening-parameters", darken_params );
* ```
*
* @since:
* 2.5.1 (for 'cff' module)
*
* 2.6.2 (for 'autofitter' module)
*
* 2.9 (for 'type1' and 't1cid' modules)
*
*/
/**************************************************************************
*
* @property:
* random-seed
*
* @description:
* By default, the seed value for the CFF 'random' operator and the
* similar '0 28 callothersubr pop' command for the Type~1 and CID
* drivers is set to a random value. However, mainly for debugging
* purposes, it is often necessary to use a known value as a seed so that
* the pseudo-random number sequences generated by 'random' are
* repeatable.
*
* The `random-seed` property does that. Its argument is a signed 32bit
* integer; if the value is zero or negative, the seed given by the
* `intitialRandomSeed` private DICT operator in a CFF file gets used (or
* a default value if there is no such operator). If the value is
* positive, use it instead of `initialRandomSeed`, which is consequently
* ignored.
*
* @note:
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable. It can also be set per face using @FT_Face_Properties with
* @FT_PARAM_TAG_RANDOM_SEED.
*
* @since:
* 2.8 (for 'cff' module)
*
* 2.9 (for 'type1' and 't1cid' modules)
*
*/
/**************************************************************************
*
* @property:
* no-long-family-names
*
* @description:
* If `PCF_CONFIG_OPTION_LONG_FAMILY_NAMES` is active while compiling
* FreeType, the PCF driver constructs long family names.
*
* There are many PCF fonts just called 'Fixed' which look completely
* different, and which have nothing to do with each other. When
* selecting 'Fixed' in KDE or Gnome one gets results that appear rather
* random, the style changes often if one changes the size and one cannot
* select some fonts at all. The improve this situation, the PCF module
* prepends the foundry name (plus a space) to the family name. It also
* checks whether there are 'wide' characters; all put together, family
* names like 'Sony Fixed' or 'Misc Fixed Wide' are constructed.
*
* If `no-long-family-names` is set, this feature gets switched off.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable (using values 1 and 0 for 'on' and 'off', respectively).
*
* @example:
* ```
* FT_Library library;
* FT_Bool no_long_family_names = TRUE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "pcf",
* "no-long-family-names",
* &no_long_family_names );
* ```
*
* @since:
* 2.8
*/
/**************************************************************************
*
* @enum:
* TT_INTERPRETER_VERSION_XXX
*
* @description:
* A list of constants used for the @interpreter-version property to
* select the hinting engine for Truetype fonts.
*
* The numeric value in the constant names represents the version number
* as returned by the 'GETINFO' bytecode instruction.
*
* @values:
* TT_INTERPRETER_VERSION_35 ::
* Version~35 corresponds to MS rasterizer v.1.7 as used e.g. in
* Windows~98; only grayscale and B/W rasterizing is supported.
*
* TT_INTERPRETER_VERSION_38 ::
* Version~38 corresponds to MS rasterizer v.1.9; it is roughly
* equivalent to the hinting provided by DirectWrite ClearType (as can
* be found, for example, in the Internet Explorer~9 running on
* Windows~7). It is used in FreeType to select the 'Infinality'
* subpixel hinting code. The code may be removed in a future version.
*
* TT_INTERPRETER_VERSION_40 ::
* Version~40 corresponds to MS rasterizer v.2.1; it is roughly
* equivalent to the hinting provided by DirectWrite ClearType (as can
* be found, for example, in Microsoft's Edge Browser on Windows~10).
* It is used in FreeType to select the 'minimal' subpixel hinting
* code, a stripped-down and higher performance version of the
* 'Infinality' code.
*
* @note:
* This property controls the behaviour of the bytecode interpreter and
* thus how outlines get hinted. It does **not** control how glyph get
* rasterized! In particular, it does not control subpixel color
* filtering.
*
* If FreeType has not been compiled with the configuration option
* `TT_CONFIG_OPTION_SUBPIXEL_HINTING`, selecting version~38 or~40 causes
* an `FT_Err_Unimplemented_Feature` error.
*
* Depending on the graphics framework, Microsoft uses different bytecode
* and rendering engines. As a consequence, the version numbers returned
* by a call to the 'GETINFO' bytecode instruction are more convoluted
* than desired.
*
* Here are two tables that try to shed some light on the possible values
* for the MS rasterizer engine, together with the additional features
* introduced by it.
*
* ```
* GETINFO framework version feature
* -------------------------------------------------------------------
* 3 GDI (Win 3.1), v1.0 16-bit, first version
* TrueImage
* 33 GDI (Win NT 3.1), v1.5 32-bit
* HP Laserjet
* 34 GDI (Win 95) v1.6 font smoothing,
* new SCANTYPE opcode
* 35 GDI (Win 98/2000) v1.7 (UN)SCALED_COMPONENT_OFFSET
* bits in composite glyphs
* 36 MGDI (Win CE 2) v1.6+ classic ClearType
* 37 GDI (XP and later), v1.8 ClearType
* GDI+ old (before Vista)
* 38 GDI+ old (Vista, Win 7), v1.9 subpixel ClearType,
* WPF Y-direction ClearType,
* additional error checking
* 39 DWrite (before Win 8) v2.0 subpixel ClearType flags
* in GETINFO opcode,
* bug fixes
* 40 GDI+ (after Win 7), v2.1 Y-direction ClearType flag
* DWrite (Win 8) in GETINFO opcode,
* Gray ClearType
* ```
*
* The 'version' field gives a rough orientation only, since some
* applications provided certain features much earlier (as an example,
* Microsoft Reader used subpixel and Y-direction ClearType already in
* Windows 2000). Similarly, updates to a given framework might include
* improved hinting support.
*
* ```
* version sampling rendering comment
* x y x y
* --------------------------------------------------------------
* v1.0 normal normal B/W B/W bi-level
* v1.6 high high gray gray grayscale
* v1.8 high normal color-filter B/W (GDI) ClearType
* v1.9 high high color-filter gray Color ClearType
* v2.1 high normal gray B/W Gray ClearType
* v2.1 high high gray gray Gray ClearType
* ```
*
* Color and Gray ClearType are the two available variants of
* 'Y-direction ClearType', meaning grayscale rasterization along the
* Y-direction; the name used in the TrueType specification for this
* feature is 'symmetric smoothing'. 'Classic ClearType' is the original
* algorithm used before introducing a modified version in Win~XP.
* Another name for v1.6's grayscale rendering is 'font smoothing', and
* 'Color ClearType' is sometimes also called 'DWrite ClearType'. To
* differentiate between today's Color ClearType and the earlier
* ClearType variant with B/W rendering along the vertical axis, the
* latter is sometimes called 'GDI ClearType'.
*
* 'Normal' and 'high' sampling describe the (virtual) resolution to
* access the rasterized outline after the hinting process. 'Normal'
* means 1 sample per grid line (i.e., B/W). In the current Microsoft
* implementation, 'high' means an extra virtual resolution of 16x16 (or
* 16x1) grid lines per pixel for bytecode instructions like 'MIRP'.
* After hinting, these 16 grid lines are mapped to 6x5 (or 6x1) grid
* lines for color filtering if Color ClearType is activated.
*
* Note that 'Gray ClearType' is essentially the same as v1.6's grayscale
* rendering. However, the GETINFO instruction handles it differently:
* v1.6 returns bit~12 (hinting for grayscale), while v2.1 returns
* bits~13 (hinting for ClearType), 18 (symmetrical smoothing), and~19
* (Gray ClearType). Also, this mode respects bits 2 and~3 for the
* version~1 gasp table exclusively (like Color ClearType), while v1.6
* only respects the values of version~0 (bits 0 and~1).
*
* Keep in mind that the features of the above interpreter versions might
* not map exactly to FreeType features or behavior because it is a
* fundamentally different library with different internals.
*
*/
#define TT_INTERPRETER_VERSION_35 35
#define TT_INTERPRETER_VERSION_38 38
#define TT_INTERPRETER_VERSION_40 40
/**************************************************************************
*
* @property:
* interpreter-version
*
* @description:
* Currently, three versions are available, two representing the bytecode
* interpreter with subpixel hinting support (old 'Infinality' code and
* new stripped-down and higher performance 'minimal' code) and one
* without, respectively. The default is subpixel support if
* `TT_CONFIG_OPTION_SUBPIXEL_HINTING` is defined, and no subpixel
* support otherwise (since it isn't available then).
*
* If subpixel hinting is on, many TrueType bytecode instructions behave
* differently compared to B/W or grayscale rendering (except if 'native
* ClearType' is selected by the font). Microsoft's main idea is to
* render at a much increased horizontal resolution, then sampling down
* the created output to subpixel precision. However, many older fonts
* are not suited to this and must be specially taken care of by applying
* (hardcoded) tweaks in Microsoft's interpreter.
*
* Details on subpixel hinting and some of the necessary tweaks can be
* found in Greg Hitchcock's whitepaper at
* 'https://www.microsoft.com/typography/cleartype/truetypecleartype.aspx'.
* Note that FreeType currently doesn't really 'subpixel hint' (6x1, 6x2,
* or 6x5 supersampling) like discussed in the paper. Depending on the
* chosen interpreter, it simply ignores instructions on vertical stems
* to arrive at very similar results.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* This property can be set via the `FREETYPE_PROPERTIES` environment
* variable (using values '35', '38', or '40').
*
* @example:
* The following example code demonstrates how to deactivate subpixel
* hinting (omitting the error handling).
*
* ```
* FT_Library library;
* FT_Face face;
* FT_UInt interpreter_version = TT_INTERPRETER_VERSION_35;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "truetype",
* "interpreter-version",
* &interpreter_version );
* ```
*
* @since:
* 2.5
*/
/**************************************************************************
*
* @property:
* svg-hooks
*
* @description:
* Set up the interface between FreeType and an extern SVG rendering
* library like 'librsvg'. All details on the function hooks can be
* found in section @svg_fonts.
*
* @example:
* The following example code expects that the four hook functions
* `svg_*` are defined elsewhere. Error handling is omitted, too.
*
* ```
* FT_Library library;
* SVG_RendererHooks hooks = {
* (SVG_Lib_Init_Func)svg_init,
* (SVG_Lib_Free_Func)svg_free,
* (SVG_Lib_Render_Func)svg_render,
* (SVG_Lib_Preset_Slot_Func)svg_preset_slot };
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "ot-svg",
* "svg-hooks", &hooks );
* ```
*
* @since:
* 2.12
*/
/**************************************************************************
*
* @property:
* glyph-to-script-map
*
* @description:
* **Experimental only**
*
* The auto-hinter provides various script modules to hint glyphs.
* Examples of supported scripts are Latin or CJK. Before a glyph is
* auto-hinted, the Unicode character map of the font gets examined, and
* the script is then determined based on Unicode character ranges, see
* below.
*
* OpenType fonts, however, often provide much more glyphs than character
* codes (small caps, superscripts, ligatures, swashes, etc.), to be
* controlled by so-called 'features'. Handling OpenType features can be
* quite complicated and thus needs a separate library on top of
* FreeType.
*
* The mapping between glyph indices and scripts (in the auto-hinter
* sense, see the @FT_AUTOHINTER_SCRIPT_XXX values) is stored as an array
* with `num_glyphs` elements, as found in the font's @FT_Face structure.
* The `glyph-to-script-map` property returns a pointer to this array,
* which can be modified as needed. Note that the modification should
* happen before the first glyph gets processed by the auto-hinter so
* that the global analysis of the font shapes actually uses the modified
* mapping.
*
* @example:
* The following example code demonstrates how to access it (omitting the
* error handling).
*
* ```
* FT_Library library;
* FT_Face face;
* FT_Prop_GlyphToScriptMap prop;
*
*
* FT_Init_FreeType( &library );
* FT_New_Face( library, "foo.ttf", 0, &face );
*
* prop.face = face;
*
* FT_Property_Get( library, "autofitter",
* "glyph-to-script-map", &prop );
*
* // adjust `prop.map' as needed right here
*
* FT_Load_Glyph( face, ..., FT_LOAD_FORCE_AUTOHINT );
* ```
*
* @since:
* 2.4.11
*
*/
/**************************************************************************
*
* @enum:
* FT_AUTOHINTER_SCRIPT_XXX
*
* @description:
* **Experimental only**
*
* A list of constants used for the @glyph-to-script-map property to
* specify the script submodule the auto-hinter should use for hinting a
* particular glyph.
*
* @values:
* FT_AUTOHINTER_SCRIPT_NONE ::
* Don't auto-hint this glyph.
*
* FT_AUTOHINTER_SCRIPT_LATIN ::
* Apply the latin auto-hinter. For the auto-hinter, 'latin' is a very
* broad term, including Cyrillic and Greek also since characters from
* those scripts share the same design constraints.
*
* By default, characters from the following Unicode ranges are
* assigned to this submodule.
*
* ```
* U+0020 - U+007F // Basic Latin (no control characters)
* U+00A0 - U+00FF // Latin-1 Supplement (no control characters)
* U+0100 - U+017F // Latin Extended-A
* U+0180 - U+024F // Latin Extended-B
* U+0250 - U+02AF // IPA Extensions
* U+02B0 - U+02FF // Spacing Modifier Letters
* U+0300 - U+036F // Combining Diacritical Marks
* U+0370 - U+03FF // Greek and Coptic
* U+0400 - U+04FF // Cyrillic
* U+0500 - U+052F // Cyrillic Supplement
* U+1D00 - U+1D7F // Phonetic Extensions
* U+1D80 - U+1DBF // Phonetic Extensions Supplement
* U+1DC0 - U+1DFF // Combining Diacritical Marks Supplement
* U+1E00 - U+1EFF // Latin Extended Additional
* U+1F00 - U+1FFF // Greek Extended
* U+2000 - U+206F // General Punctuation
* U+2070 - U+209F // Superscripts and Subscripts
* U+20A0 - U+20CF // Currency Symbols
* U+2150 - U+218F // Number Forms
* U+2460 - U+24FF // Enclosed Alphanumerics
* U+2C60 - U+2C7F // Latin Extended-C
* U+2DE0 - U+2DFF // Cyrillic Extended-A
* U+2E00 - U+2E7F // Supplemental Punctuation
* U+A640 - U+A69F // Cyrillic Extended-B
* U+A720 - U+A7FF // Latin Extended-D
* U+FB00 - U+FB06 // Alphab. Present. Forms (Latin Ligatures)
* U+1D400 - U+1D7FF // Mathematical Alphanumeric Symbols
* U+1F100 - U+1F1FF // Enclosed Alphanumeric Supplement
* ```
*
* FT_AUTOHINTER_SCRIPT_CJK ::
* Apply the CJK auto-hinter, covering Chinese, Japanese, Korean, old
* Vietnamese, and some other scripts.
*
* By default, characters from the following Unicode ranges are
* assigned to this submodule.
*
* ```
* U+1100 - U+11FF // Hangul Jamo
* U+2E80 - U+2EFF // CJK Radicals Supplement
* U+2F00 - U+2FDF // Kangxi Radicals
* U+2FF0 - U+2FFF // Ideographic Description Characters
* U+3000 - U+303F // CJK Symbols and Punctuation
* U+3040 - U+309F // Hiragana
* U+30A0 - U+30FF // Katakana
* U+3100 - U+312F // Bopomofo
* U+3130 - U+318F // Hangul Compatibility Jamo
* U+3190 - U+319F // Kanbun
* U+31A0 - U+31BF // Bopomofo Extended
* U+31C0 - U+31EF // CJK Strokes
* U+31F0 - U+31FF // Katakana Phonetic Extensions
* U+3200 - U+32FF // Enclosed CJK Letters and Months
* U+3300 - U+33FF // CJK Compatibility
* U+3400 - U+4DBF // CJK Unified Ideographs Extension A
* U+4DC0 - U+4DFF // Yijing Hexagram Symbols
* U+4E00 - U+9FFF // CJK Unified Ideographs
* U+A960 - U+A97F // Hangul Jamo Extended-A
* U+AC00 - U+D7AF // Hangul Syllables
* U+D7B0 - U+D7FF // Hangul Jamo Extended-B
* U+F900 - U+FAFF // CJK Compatibility Ideographs
* U+FE10 - U+FE1F // Vertical forms
* U+FE30 - U+FE4F // CJK Compatibility Forms
* U+FF00 - U+FFEF // Halfwidth and Fullwidth Forms
* U+1B000 - U+1B0FF // Kana Supplement
* U+1D300 - U+1D35F // Tai Xuan Hing Symbols
* U+1F200 - U+1F2FF // Enclosed Ideographic Supplement
* U+20000 - U+2A6DF // CJK Unified Ideographs Extension B
* U+2A700 - U+2B73F // CJK Unified Ideographs Extension C
* U+2B740 - U+2B81F // CJK Unified Ideographs Extension D
* U+2F800 - U+2FA1F // CJK Compatibility Ideographs Supplement
* ```
*
* FT_AUTOHINTER_SCRIPT_INDIC ::
* Apply the indic auto-hinter, covering all major scripts from the
* Indian sub-continent and some other related scripts like Thai, Lao,
* or Tibetan.
*
* By default, characters from the following Unicode ranges are
* assigned to this submodule.
*
* ```
* U+0900 - U+0DFF // Indic Range
* U+0F00 - U+0FFF // Tibetan
* U+1900 - U+194F // Limbu
* U+1B80 - U+1BBF // Sundanese
* U+A800 - U+A82F // Syloti Nagri
* U+ABC0 - U+ABFF // Meetei Mayek
* U+11800 - U+118DF // Sharada
* ```
*
* Note that currently Indic support is rudimentary only, missing blue
* zone support.
*
* @since:
* 2.4.11
*
*/
#define FT_AUTOHINTER_SCRIPT_NONE 0
#define FT_AUTOHINTER_SCRIPT_LATIN 1
#define FT_AUTOHINTER_SCRIPT_CJK 2
#define FT_AUTOHINTER_SCRIPT_INDIC 3
/**************************************************************************
*
* @struct:
* FT_Prop_GlyphToScriptMap
*
* @description:
* **Experimental only**
*
* The data exchange structure for the @glyph-to-script-map property.
*
* @since:
* 2.4.11
*
*/
typedef struct FT_Prop_GlyphToScriptMap_
{
FT_Face face;
FT_UShort* map;
} FT_Prop_GlyphToScriptMap;
/**************************************************************************
*
* @property:
* fallback-script
*
* @description:
* **Experimental only**
*
* If no auto-hinter script module can be assigned to a glyph, a fallback
* script gets assigned to it (see also the @glyph-to-script-map
* property). By default, this is @FT_AUTOHINTER_SCRIPT_CJK. Using the
* `fallback-script` property, this fallback value can be changed.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* It's important to use the right timing for changing this value: The
* creation of the glyph-to-script map that eventually uses the fallback
* script value gets triggered either by setting or reading a
* face-specific property like @glyph-to-script-map, or by auto-hinting
* any glyph from that face. In particular, if you have already created
* an @FT_Face structure but not loaded any glyph (using the
* auto-hinter), a change of the fallback script will affect this face.
*
* @example:
* ```
* FT_Library library;
* FT_UInt fallback_script = FT_AUTOHINTER_SCRIPT_NONE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "autofitter",
* "fallback-script", &fallback_script );
* ```
*
* @since:
* 2.4.11
*
*/
/**************************************************************************
*
* @property:
* default-script
*
* @description:
* **Experimental only**
*
* If FreeType gets compiled with `FT_CONFIG_OPTION_USE_HARFBUZZ` to make
* the HarfBuzz library access OpenType features for getting better glyph
* coverages, this property sets the (auto-fitter) script to be used for
* the default (OpenType) script data of a font's GSUB table. Features
* for the default script are intended for all scripts not explicitly
* handled in GSUB; an example is a 'dlig' feature, containing the
* combination of the characters 'T', 'E', and 'L' to form a 'TEL'
* ligature.
*
* By default, this is @FT_AUTOHINTER_SCRIPT_LATIN. Using the
* `default-script` property, this default value can be changed.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* It's important to use the right timing for changing this value: The
* creation of the glyph-to-script map that eventually uses the default
* script value gets triggered either by setting or reading a
* face-specific property like @glyph-to-script-map, or by auto-hinting
* any glyph from that face. In particular, if you have already created
* an @FT_Face structure but not loaded any glyph (using the
* auto-hinter), a change of the default script will affect this face.
*
* @example:
* ```
* FT_Library library;
* FT_UInt default_script = FT_AUTOHINTER_SCRIPT_NONE;
*
*
* FT_Init_FreeType( &library );
*
* FT_Property_Set( library, "autofitter",
* "default-script", &default_script );
* ```
*
* @since:
* 2.5.3
*
*/
/**************************************************************************
*
* @property:
* increase-x-height
*
* @description:
* For ppem values in the range 6~<= ppem <= `increase-x-height`, round
* up the font's x~height much more often than normally. If the value is
* set to~0, which is the default, this feature is switched off. Use
* this property to improve the legibility of small font sizes if
* necessary.
*
* @note:
* This property can be used with @FT_Property_Get also.
*
* Set this value right after calling @FT_Set_Char_Size, but before
* loading any glyph (using the auto-hinter).
*
* @example:
* ```
* FT_Library library;
* FT_Face face;
* FT_Prop_IncreaseXHeight prop;
*
*
* FT_Init_FreeType( &library );
* FT_New_Face( library, "foo.ttf", 0, &face );
* FT_Set_Char_Size( face, 10 * 64, 0, 72, 0 );
*
* prop.face = face;
* prop.limit = 14;
*
* FT_Property_Set( library, "autofitter",
* "increase-x-height", &prop );
* ```
*
* @since:
* 2.4.11
*
*/
/**************************************************************************
*
* @struct:
* FT_Prop_IncreaseXHeight
*
* @description:
* The data exchange structure for the @increase-x-height property.
*
*/
typedef struct FT_Prop_IncreaseXHeight_
{
FT_Face face;
FT_UInt limit;
} FT_Prop_IncreaseXHeight;
/**************************************************************************
*
* @property:
* warping
*
* @description:
* **Obsolete**
*
* This property was always experimental and probably never worked
* correctly. It was entirely removed from the FreeType~2 sources. This
* entry is only here for historical reference.
*
* Warping only worked in 'normal' auto-hinting mode replacing it. The
* idea of the code was to slightly scale and shift a glyph along the
* non-hinted dimension (which is usually the horizontal axis) so that as
* much of its segments were aligned (more or less) to the grid. To find
* out a glyph's optimal scaling and shifting value, various parameter
* combinations were tried and scored.
*
* @since:
* 2.6
*
*/
/* */
FT_END_HEADER
#endif /* FTDRIVER_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftdriver.h
|
C++
|
gpl-3.0
| 47,793
|
/****************************************************************************
*
* fterrdef.h
*
* FreeType error codes (specification).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* @section:
* error_code_values
*
* @title:
* Error Code Values
*
* @abstract:
* All possible error codes returned by FreeType functions.
*
* @description:
* The list below is taken verbatim from the file `fterrdef.h` (loaded
* automatically by including `FT_FREETYPE_H`). The first argument of the
* `FT_ERROR_DEF_` macro is the error label; by default, the prefix
* `FT_Err_` gets added so that you get error names like
* `FT_Err_Cannot_Open_Resource`. The second argument is the error code,
* and the last argument an error string, which is not used by FreeType.
*
* Within your application you should **only** use error names and
* **never** its numeric values! The latter might (and actually do)
* change in forthcoming FreeType versions.
*
* Macro `FT_NOERRORDEF_` defines `FT_Err_Ok`, which is always zero. See
* the 'Error Enumerations' subsection how to automatically generate a
* list of error strings.
*
*/
/**************************************************************************
*
* @enum:
* FT_Err_XXX
*
*/
/* generic errors */
FT_NOERRORDEF_( Ok, 0x00,
"no error" )
FT_ERRORDEF_( Cannot_Open_Resource, 0x01,
"cannot open resource" )
FT_ERRORDEF_( Unknown_File_Format, 0x02,
"unknown file format" )
FT_ERRORDEF_( Invalid_File_Format, 0x03,
"broken file" )
FT_ERRORDEF_( Invalid_Version, 0x04,
"invalid FreeType version" )
FT_ERRORDEF_( Lower_Module_Version, 0x05,
"module version is too low" )
FT_ERRORDEF_( Invalid_Argument, 0x06,
"invalid argument" )
FT_ERRORDEF_( Unimplemented_Feature, 0x07,
"unimplemented feature" )
FT_ERRORDEF_( Invalid_Table, 0x08,
"broken table" )
FT_ERRORDEF_( Invalid_Offset, 0x09,
"broken offset within table" )
FT_ERRORDEF_( Array_Too_Large, 0x0A,
"array allocation size too large" )
FT_ERRORDEF_( Missing_Module, 0x0B,
"missing module" )
FT_ERRORDEF_( Missing_Property, 0x0C,
"missing property" )
/* glyph/character errors */
FT_ERRORDEF_( Invalid_Glyph_Index, 0x10,
"invalid glyph index" )
FT_ERRORDEF_( Invalid_Character_Code, 0x11,
"invalid character code" )
FT_ERRORDEF_( Invalid_Glyph_Format, 0x12,
"unsupported glyph image format" )
FT_ERRORDEF_( Cannot_Render_Glyph, 0x13,
"cannot render this glyph format" )
FT_ERRORDEF_( Invalid_Outline, 0x14,
"invalid outline" )
FT_ERRORDEF_( Invalid_Composite, 0x15,
"invalid composite glyph" )
FT_ERRORDEF_( Too_Many_Hints, 0x16,
"too many hints" )
FT_ERRORDEF_( Invalid_Pixel_Size, 0x17,
"invalid pixel size" )
FT_ERRORDEF_( Invalid_SVG_Document, 0x18,
"invalid SVG document" )
/* handle errors */
FT_ERRORDEF_( Invalid_Handle, 0x20,
"invalid object handle" )
FT_ERRORDEF_( Invalid_Library_Handle, 0x21,
"invalid library handle" )
FT_ERRORDEF_( Invalid_Driver_Handle, 0x22,
"invalid module handle" )
FT_ERRORDEF_( Invalid_Face_Handle, 0x23,
"invalid face handle" )
FT_ERRORDEF_( Invalid_Size_Handle, 0x24,
"invalid size handle" )
FT_ERRORDEF_( Invalid_Slot_Handle, 0x25,
"invalid glyph slot handle" )
FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26,
"invalid charmap handle" )
FT_ERRORDEF_( Invalid_Cache_Handle, 0x27,
"invalid cache manager handle" )
FT_ERRORDEF_( Invalid_Stream_Handle, 0x28,
"invalid stream handle" )
/* driver errors */
FT_ERRORDEF_( Too_Many_Drivers, 0x30,
"too many modules" )
FT_ERRORDEF_( Too_Many_Extensions, 0x31,
"too many extensions" )
/* memory errors */
FT_ERRORDEF_( Out_Of_Memory, 0x40,
"out of memory" )
FT_ERRORDEF_( Unlisted_Object, 0x41,
"unlisted object" )
/* stream errors */
FT_ERRORDEF_( Cannot_Open_Stream, 0x51,
"cannot open stream" )
FT_ERRORDEF_( Invalid_Stream_Seek, 0x52,
"invalid stream seek" )
FT_ERRORDEF_( Invalid_Stream_Skip, 0x53,
"invalid stream skip" )
FT_ERRORDEF_( Invalid_Stream_Read, 0x54,
"invalid stream read" )
FT_ERRORDEF_( Invalid_Stream_Operation, 0x55,
"invalid stream operation" )
FT_ERRORDEF_( Invalid_Frame_Operation, 0x56,
"invalid frame operation" )
FT_ERRORDEF_( Nested_Frame_Access, 0x57,
"nested frame access" )
FT_ERRORDEF_( Invalid_Frame_Read, 0x58,
"invalid frame read" )
/* raster errors */
FT_ERRORDEF_( Raster_Uninitialized, 0x60,
"raster uninitialized" )
FT_ERRORDEF_( Raster_Corrupted, 0x61,
"raster corrupted" )
FT_ERRORDEF_( Raster_Overflow, 0x62,
"raster overflow" )
FT_ERRORDEF_( Raster_Negative_Height, 0x63,
"negative height while rastering" )
/* cache errors */
FT_ERRORDEF_( Too_Many_Caches, 0x70,
"too many registered caches" )
/* TrueType and SFNT errors */
FT_ERRORDEF_( Invalid_Opcode, 0x80,
"invalid opcode" )
FT_ERRORDEF_( Too_Few_Arguments, 0x81,
"too few arguments" )
FT_ERRORDEF_( Stack_Overflow, 0x82,
"stack overflow" )
FT_ERRORDEF_( Code_Overflow, 0x83,
"code overflow" )
FT_ERRORDEF_( Bad_Argument, 0x84,
"bad argument" )
FT_ERRORDEF_( Divide_By_Zero, 0x85,
"division by zero" )
FT_ERRORDEF_( Invalid_Reference, 0x86,
"invalid reference" )
FT_ERRORDEF_( Debug_OpCode, 0x87,
"found debug opcode" )
FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88,
"found ENDF opcode in execution stream" )
FT_ERRORDEF_( Nested_DEFS, 0x89,
"nested DEFS" )
FT_ERRORDEF_( Invalid_CodeRange, 0x8A,
"invalid code range" )
FT_ERRORDEF_( Execution_Too_Long, 0x8B,
"execution context too long" )
FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C,
"too many function definitions" )
FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D,
"too many instruction definitions" )
FT_ERRORDEF_( Table_Missing, 0x8E,
"SFNT font table missing" )
FT_ERRORDEF_( Horiz_Header_Missing, 0x8F,
"horizontal header (hhea) table missing" )
FT_ERRORDEF_( Locations_Missing, 0x90,
"locations (loca) table missing" )
FT_ERRORDEF_( Name_Table_Missing, 0x91,
"name table missing" )
FT_ERRORDEF_( CMap_Table_Missing, 0x92,
"character map (cmap) table missing" )
FT_ERRORDEF_( Hmtx_Table_Missing, 0x93,
"horizontal metrics (hmtx) table missing" )
FT_ERRORDEF_( Post_Table_Missing, 0x94,
"PostScript (post) table missing" )
FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95,
"invalid horizontal metrics" )
FT_ERRORDEF_( Invalid_CharMap_Format, 0x96,
"invalid character map (cmap) format" )
FT_ERRORDEF_( Invalid_PPem, 0x97,
"invalid ppem value" )
FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98,
"invalid vertical metrics" )
FT_ERRORDEF_( Could_Not_Find_Context, 0x99,
"could not find context" )
FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A,
"invalid PostScript (post) table format" )
FT_ERRORDEF_( Invalid_Post_Table, 0x9B,
"invalid PostScript (post) table" )
FT_ERRORDEF_( DEF_In_Glyf_Bytecode, 0x9C,
"found FDEF or IDEF opcode in glyf bytecode" )
FT_ERRORDEF_( Missing_Bitmap, 0x9D,
"missing bitmap in strike" )
FT_ERRORDEF_( Missing_SVG_Hooks, 0x9E,
"SVG hooks have not been set" )
/* CFF, CID, and Type 1 errors */
FT_ERRORDEF_( Syntax_Error, 0xA0,
"opcode syntax error" )
FT_ERRORDEF_( Stack_Underflow, 0xA1,
"argument stack underflow" )
FT_ERRORDEF_( Ignore, 0xA2,
"ignore" )
FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3,
"no Unicode glyph name found" )
FT_ERRORDEF_( Glyph_Too_Big, 0xA4,
"glyph too big for hinting" )
/* BDF errors */
FT_ERRORDEF_( Missing_Startfont_Field, 0xB0,
"`STARTFONT' field missing" )
FT_ERRORDEF_( Missing_Font_Field, 0xB1,
"`FONT' field missing" )
FT_ERRORDEF_( Missing_Size_Field, 0xB2,
"`SIZE' field missing" )
FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3,
"`FONTBOUNDINGBOX' field missing" )
FT_ERRORDEF_( Missing_Chars_Field, 0xB4,
"`CHARS' field missing" )
FT_ERRORDEF_( Missing_Startchar_Field, 0xB5,
"`STARTCHAR' field missing" )
FT_ERRORDEF_( Missing_Encoding_Field, 0xB6,
"`ENCODING' field missing" )
FT_ERRORDEF_( Missing_Bbx_Field, 0xB7,
"`BBX' field missing" )
FT_ERRORDEF_( Bbx_Too_Big, 0xB8,
"`BBX' too big" )
FT_ERRORDEF_( Corrupted_Font_Header, 0xB9,
"Font header corrupted or missing fields" )
FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA,
"Font glyphs corrupted or missing fields" )
/* */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/fterrdef.h
|
C++
|
gpl-3.0
| 12,559
|
/****************************************************************************
*
* fterrors.h
*
* FreeType error code handling (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* @section:
* error_enumerations
*
* @title:
* Error Enumerations
*
* @abstract:
* How to handle errors and error strings.
*
* @description:
* The header file `fterrors.h` (which is automatically included by
* `freetype.h` defines the handling of FreeType's enumeration
* constants. It can also be used to generate error message strings
* with a small macro trick explained below.
*
* **Error Formats**
*
* The configuration macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` can be
* defined in `ftoption.h` in order to make the higher byte indicate the
* module where the error has happened (this is not compatible with
* standard builds of FreeType~2, however). See the file `ftmoderr.h`
* for more details.
*
* **Error Message Strings**
*
* Error definitions are set up with special macros that allow client
* applications to build a table of error message strings. The strings
* are not included in a normal build of FreeType~2 to save space (most
* client applications do not use them).
*
* To do so, you have to define the following macros before including
* this file.
*
* ```
* FT_ERROR_START_LIST
* ```
*
* This macro is called before anything else to define the start of the
* error list. It is followed by several `FT_ERROR_DEF` calls.
*
* ```
* FT_ERROR_DEF( e, v, s )
* ```
*
* This macro is called to define one single error. 'e' is the error
* code identifier (e.g., `Invalid_Argument`), 'v' is the error's
* numerical value, and 's' is the corresponding error string.
*
* ```
* FT_ERROR_END_LIST
* ```
*
* This macro ends the list.
*
* Additionally, you have to undefine `FTERRORS_H_` before #including
* this file.
*
* Here is a simple example.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERRORDEF( e, v, s ) { e, s },
* #define FT_ERROR_START_LIST {
* #define FT_ERROR_END_LIST { 0, NULL } };
*
* const struct
* {
* int err_code;
* const char* err_msg;
* } ft_errors[] =
*
* #include <freetype/fterrors.h>
* ```
*
* An alternative to using an array is a switch statement.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERROR_START_LIST switch ( error_code ) {
* #define FT_ERRORDEF( e, v, s ) case v: return s;
* #define FT_ERROR_END_LIST }
* ```
*
* If you use `FT_CONFIG_OPTION_USE_MODULE_ERRORS`, `error_code` should
* be replaced with `FT_ERROR_BASE(error_code)` in the last example.
*/
/* */
/* In previous FreeType versions we used `__FTERRORS_H__`. However, */
/* using two successive underscores in a non-system symbol name */
/* violates the C (and C++) standard, so it was changed to the */
/* current form. In spite of this, we have to make */
/* */
/* ``` */
/* #undefine __FTERRORS_H__ */
/* ``` */
/* */
/* work for backward compatibility. */
/* */
#if !( defined( FTERRORS_H_ ) && defined ( __FTERRORS_H__ ) )
#define FTERRORS_H_
#define __FTERRORS_H__
/* include module base error codes */
#include <freetype/ftmoderr.h>
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
/* FT_ERR_PREFIX is used as a prefix for error identifiers. */
/* By default, we use `FT_Err_`. */
/* */
#ifndef FT_ERR_PREFIX
#define FT_ERR_PREFIX FT_Err_
#endif
/* FT_ERR_BASE is used as the base for module-specific errors. */
/* */
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#ifndef FT_ERR_BASE
#define FT_ERR_BASE FT_Mod_Err_Base
#endif
#else
#undef FT_ERR_BASE
#define FT_ERR_BASE 0
#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */
/* If FT_ERRORDEF is not defined, we need to define a simple */
/* enumeration type. */
/* */
#ifndef FT_ERRORDEF
#define FT_INCLUDE_ERR_PROTOS
#define FT_ERRORDEF( e, v, s ) e = v,
#define FT_ERROR_START_LIST enum {
#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_ERRORDEF */
/* this macro is used to define an error */
#define FT_ERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s )
/* this is only used for <module>_Err_Ok, which must be 0! */
#define FT_NOERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )
#ifdef FT_ERROR_START_LIST
FT_ERROR_START_LIST
#endif
/* now include the error codes */
#include <freetype/fterrdef.h>
#ifdef FT_ERROR_END_LIST
FT_ERROR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SIMPLE CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_ERROR_START_LIST
#undef FT_ERROR_END_LIST
#undef FT_ERRORDEF
#undef FT_ERRORDEF_
#undef FT_NOERRORDEF_
#undef FT_NEED_EXTERN_C
#undef FT_ERR_BASE
/* FT_ERR_PREFIX is needed internally */
#ifndef FT2_BUILD_LIBRARY
#undef FT_ERR_PREFIX
#endif
/* FT_INCLUDE_ERR_PROTOS: Control whether function prototypes should be */
/* included with */
/* */
/* #include <freetype/fterrors.h> */
/* */
/* This is only true where `FT_ERRORDEF` is */
/* undefined. */
/* */
/* FT_ERR_PROTOS_DEFINED: Actual multiple-inclusion protection of */
/* `fterrors.h`. */
#ifdef FT_INCLUDE_ERR_PROTOS
#undef FT_INCLUDE_ERR_PROTOS
#ifndef FT_ERR_PROTOS_DEFINED
#define FT_ERR_PROTOS_DEFINED
FT_BEGIN_HEADER
/**************************************************************************
*
* @function:
* FT_Error_String
*
* @description:
* Retrieve the description of a valid FreeType error code.
*
* @input:
* error_code ::
* A valid FreeType error code.
*
* @return:
* A C~string or `NULL`, if any error occurred.
*
* @note:
* FreeType has to be compiled with `FT_CONFIG_OPTION_ERROR_STRINGS` or
* `FT_DEBUG_LEVEL_ERROR` to get meaningful descriptions.
* 'error_string' will be `NULL` otherwise.
*
* Module identification will be ignored:
*
* ```c
* strcmp( FT_Error_String( FT_Err_Unknown_File_Format ),
* FT_Error_String( BDF_Err_Unknown_File_Format ) ) == 0;
* ```
*/
FT_EXPORT( const char* )
FT_Error_String( FT_Error error_code );
/* */
FT_END_HEADER
#endif /* FT_ERR_PROTOS_DEFINED */
#endif /* FT_INCLUDE_ERR_PROTOS */
#endif /* !(FTERRORS_H_ && __FTERRORS_H__) */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/fterrors.h
|
C++
|
gpl-3.0
| 9,300
|
/****************************************************************************
*
* ftfntfmt.h
*
* Support functions for font formats.
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTFNTFMT_H_
#define FTFNTFMT_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* font_formats
*
* @title:
* Font Formats
*
* @abstract:
* Getting the font format.
*
* @description:
* The single function in this section can be used to get the font format.
* Note that this information is not needed normally; however, there are
* special cases (like in PDF devices) where it is important to
* differentiate, in spite of FreeType's uniform API.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_Font_Format
*
* @description:
* Return a string describing the format of a given face. Possible values
* are 'TrueType', 'Type~1', 'BDF', 'PCF', 'Type~42', 'CID~Type~1', 'CFF',
* 'PFR', and 'Windows~FNT'.
*
* The return value is suitable to be used as an X11 FONT_PROPERTY.
*
* @input:
* face ::
* Input face handle.
*
* @return:
* Font format string. `NULL` in case of error.
*
* @note:
* A deprecated name for the same function is `FT_Get_X11_Font_Format`.
*/
FT_EXPORT( const char* )
FT_Get_Font_Format( FT_Face face );
/* deprecated */
FT_EXPORT( const char* )
FT_Get_X11_Font_Format( FT_Face face );
/* */
FT_END_HEADER
#endif /* FTFNTFMT_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftfntfmt.h
|
C++
|
gpl-3.0
| 2,213
|
/****************************************************************************
*
* ftgasp.h
*
* Access of TrueType's 'gasp' table (specification).
*
* Copyright (C) 2007-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGASP_H_
#define FTGASP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gasp_table
*
* @title:
* Gasp Table
*
* @abstract:
* Retrieving TrueType 'gasp' table entries.
*
* @description:
* The function @FT_Get_Gasp can be used to query a TrueType or OpenType
* font for specific entries in its 'gasp' table, if any. This is mainly
* useful when implementing native TrueType hinting with the bytecode
* interpreter to duplicate the Windows text rendering results.
*/
/**************************************************************************
*
* @enum:
* FT_GASP_XXX
*
* @description:
* A list of values and/or bit-flags returned by the @FT_Get_Gasp
* function.
*
* @values:
* FT_GASP_NO_TABLE ::
* This special value means that there is no GASP table in this face.
* It is up to the client to decide what to do.
*
* FT_GASP_DO_GRIDFIT ::
* Grid-fitting and hinting should be performed at the specified ppem.
* This **really** means TrueType bytecode interpretation. If this bit
* is not set, no hinting gets applied.
*
* FT_GASP_DO_GRAY ::
* Anti-aliased rendering should be performed at the specified ppem.
* If not set, do monochrome rendering.
*
* FT_GASP_SYMMETRIC_SMOOTHING ::
* If set, smoothing along multiple axes must be used with ClearType.
*
* FT_GASP_SYMMETRIC_GRIDFIT ::
* Grid-fitting must be used with ClearType's symmetric smoothing.
*
* @note:
* The bit-flags `FT_GASP_DO_GRIDFIT` and `FT_GASP_DO_GRAY` are to be
* used for standard font rasterization only. Independently of that,
* `FT_GASP_SYMMETRIC_SMOOTHING` and `FT_GASP_SYMMETRIC_GRIDFIT` are to
* be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT` and
* `FT_GASP_DO_GRAY` are consequently ignored).
*
* 'ClearType' is Microsoft's implementation of LCD rendering, partly
* protected by patents.
*
* @since:
* 2.3.0
*/
#define FT_GASP_NO_TABLE -1
#define FT_GASP_DO_GRIDFIT 0x01
#define FT_GASP_DO_GRAY 0x02
#define FT_GASP_SYMMETRIC_GRIDFIT 0x04
#define FT_GASP_SYMMETRIC_SMOOTHING 0x08
/**************************************************************************
*
* @function:
* FT_Get_Gasp
*
* @description:
* For a TrueType or OpenType font file, return the rasterizer behaviour
* flags from the font's 'gasp' table corresponding to a given character
* pixel size.
*
* @input:
* face ::
* The source face handle.
*
* ppem ::
* The vertical character pixel size.
*
* @return:
* Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no
* 'gasp' table in the face.
*
* @note:
* If you want to use the MM functionality of OpenType variation fonts
* (i.e., using @FT_Set_Var_Design_Coordinates and friends), call this
* function **after** setting an instance since the return values can
* change.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Int )
FT_Get_Gasp( FT_Face face,
FT_UInt ppem );
/* */
FT_END_HEADER
#endif /* FTGASP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftgasp.h
|
C++
|
gpl-3.0
| 4,138
|
/****************************************************************************
*
* ftglyph.h
*
* FreeType convenience functions to handle glyphs (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file contains the definition of several convenience functions that
* can be used by client applications to easily retrieve glyph bitmaps and
* outlines from a given face.
*
* These functions should be optional if you are writing a font server or
* text layout engine on top of FreeType. However, they are pretty handy
* for many other simple uses of the library.
*
*/
#ifndef FTGLYPH_H_
#define FTGLYPH_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_management
*
* @title:
* Glyph Management
*
* @abstract:
* Generic interface to manage individual glyph data.
*
* @description:
* This section contains definitions used to manage glyph data through
* generic @FT_Glyph objects. Each of them can contain a bitmap,
* a vector outline, or even images in other formats. These objects are
* detached from @FT_Face, contrary to @FT_GlyphSlot.
*
*/
/* forward declaration to a private type */
typedef struct FT_Glyph_Class_ FT_Glyph_Class;
/**************************************************************************
*
* @type:
* FT_Glyph
*
* @description:
* Handle to an object used to model generic glyph images. It is a
* pointer to the @FT_GlyphRec structure and can contain a glyph bitmap
* or pointer.
*
* @note:
* Glyph objects are not owned by the library. You must thus release
* them manually (through @FT_Done_Glyph) _before_ calling
* @FT_Done_FreeType.
*/
typedef struct FT_GlyphRec_* FT_Glyph;
/**************************************************************************
*
* @struct:
* FT_GlyphRec
*
* @description:
* The root glyph structure contains a given glyph image plus its advance
* width in 16.16 fixed-point format.
*
* @fields:
* library ::
* A handle to the FreeType library object.
*
* clazz ::
* A pointer to the glyph's class. Private.
*
* format ::
* The format of the glyph's image.
*
* advance ::
* A 16.16 vector that gives the glyph's advance width.
*/
typedef struct FT_GlyphRec_
{
FT_Library library;
const FT_Glyph_Class* clazz;
FT_Glyph_Format format;
FT_Vector advance;
} FT_GlyphRec;
/**************************************************************************
*
* @type:
* FT_BitmapGlyph
*
* @description:
* A handle to an object used to model a bitmap glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec.
*/
typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph;
/**************************************************************************
*
* @struct:
* FT_BitmapGlyphRec
*
* @description:
* A structure used for bitmap glyph images. This really is a
* 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root fields of @FT_Glyph.
*
* left ::
* The left-side bearing, i.e., the horizontal distance from the
* current pen position to the left border of the glyph bitmap.
*
* top ::
* The top-side bearing, i.e., the vertical distance from the current
* pen position to the top border of the glyph bitmap. This distance
* is positive for upwards~y!
*
* bitmap ::
* A descriptor for the bitmap.
*
* @note:
* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_BITMAP`. This lets you access the
* bitmap's contents easily.
*
* The corresponding pixel buffer is always owned by @FT_BitmapGlyph and
* is thus created and destroyed with it.
*/
typedef struct FT_BitmapGlyphRec_
{
FT_GlyphRec root;
FT_Int left;
FT_Int top;
FT_Bitmap bitmap;
} FT_BitmapGlyphRec;
/**************************************************************************
*
* @type:
* FT_OutlineGlyph
*
* @description:
* A handle to an object used to model an outline glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec.
*/
typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph;
/**************************************************************************
*
* @struct:
* FT_OutlineGlyphRec
*
* @description:
* A structure used for outline (vectorial) glyph images. This really is
* a 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_Glyph fields.
*
* outline ::
* A descriptor for the outline.
*
* @note:
* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_OUTLINE`. This lets you access the
* outline's content easily.
*
* As the outline is extracted from a glyph slot, its coordinates are
* expressed normally in 26.6 pixels, unless the flag @FT_LOAD_NO_SCALE
* was used in @FT_Load_Glyph or @FT_Load_Char.
*
* The outline's tables are always owned by the object and are destroyed
* with it.
*/
typedef struct FT_OutlineGlyphRec_
{
FT_GlyphRec root;
FT_Outline outline;
} FT_OutlineGlyphRec;
/**************************************************************************
*
* @type:
* FT_SvgGlyph
*
* @description:
* A handle to an object used to model an SVG glyph. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_SvgGlyphRec.
*
* @since:
* 2.12
*/
typedef struct FT_SvgGlyphRec_* FT_SvgGlyph;
/**************************************************************************
*
* @struct:
* FT_SvgGlyphRec
*
* @description:
* A structure used for OT-SVG glyphs. This is a 'sub-class' of
* @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_GlyphRec fields.
*
* svg_document ::
* A pointer to the SVG document.
*
* svg_document_length ::
* The length of `svg_document`.
*
* glyph_index ::
* The index of the glyph to be rendered.
*
* metrics ::
* A metrics object storing the size information.
*
* units_per_EM ::
* The size of the EM square.
*
* start_glyph_id ::
* The first glyph ID in the glyph range covered by this document.
*
* end_glyph_id ::
* The last glyph ID in the glyph range covered by this document.
*
* transform ::
* A 2x2 transformation matrix to apply to the glyph while rendering
* it.
*
* delta ::
* Translation to apply to the glyph while rendering.
*
* @note:
* The Glyph Management API requires @FT_Glyph or its 'sub-class' to have
* all the information needed to completely define the glyph's rendering.
* Outline-based glyphs can directly apply transformations to the outline
* but this is not possible for an SVG document that hasn't been parsed.
* Therefore, the transformation is stored along with the document. In
* the absence of a 'ViewBox' or 'Width'/'Height' attribute, the size of
* the ViewPort should be assumed to be 'units_per_EM'.
*/
typedef struct FT_SvgGlyphRec_
{
FT_GlyphRec root;
FT_Byte* svg_document;
FT_ULong svg_document_length;
FT_UInt glyph_index;
FT_Size_Metrics metrics;
FT_UShort units_per_EM;
FT_UShort start_glyph_id;
FT_UShort end_glyph_id;
FT_Matrix transform;
FT_Vector delta;
} FT_SvgGlyphRec;
/**************************************************************************
*
* @function:
* FT_New_Glyph
*
* @description:
* A function used to create a new empty glyph image. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* library ::
* A handle to the FreeType library object.
*
* format ::
* The format of the glyph's image.
*
* @output:
* aglyph ::
* A handle to the glyph object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_New_Glyph( FT_Library library,
FT_Glyph_Format format,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Get_Glyph
*
* @description:
* A function used to extract a glyph image from a slot. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* slot ::
* A handle to the source glyph slot.
*
* @output:
* aglyph ::
* A handle to the glyph object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Because `*aglyph->advance.x` and `*aglyph->advance.y` are 16.16
* fixed-point numbers, `slot->advance.x` and `slot->advance.y` (which
* are in 26.6 fixed-point format) must be in the range ]-32768;32768[.
*/
FT_EXPORT( FT_Error )
FT_Get_Glyph( FT_GlyphSlot slot,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Glyph_Copy
*
* @description:
* A function used to copy a glyph image. Note that the created
* @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* source ::
* A handle to the source glyph object.
*
* @output:
* target ::
* A handle to the target glyph object. 0~in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Copy( FT_Glyph source,
FT_Glyph *target );
/**************************************************************************
*
* @function:
* FT_Glyph_Transform
*
* @description:
* Transform a glyph image if its format is scalable.
*
* @inout:
* glyph ::
* A handle to the target glyph object.
*
* @input:
* matrix ::
* A pointer to a 2x2 matrix to apply.
*
* delta ::
* A pointer to a 2d vector to apply. Coordinates are expressed in
* 1/64th of a pixel.
*
* @return:
* FreeType error code (if not 0, the glyph format is not scalable).
*
* @note:
* The 2x2 transformation matrix is also applied to the glyph's advance
* vector.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Transform( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
/**************************************************************************
*
* @enum:
* FT_Glyph_BBox_Mode
*
* @description:
* The mode how the values of @FT_Glyph_Get_CBox are returned.
*
* @values:
* FT_GLYPH_BBOX_UNSCALED ::
* Return unscaled font units.
*
* FT_GLYPH_BBOX_SUBPIXELS ::
* Return unfitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_GRIDFIT ::
* Return grid-fitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_TRUNCATE ::
* Return coordinates in integer pixels.
*
* FT_GLYPH_BBOX_PIXELS ::
* Return grid-fitted pixel coordinates.
*/
typedef enum FT_Glyph_BBox_Mode_
{
FT_GLYPH_BBOX_UNSCALED = 0,
FT_GLYPH_BBOX_SUBPIXELS = 0,
FT_GLYPH_BBOX_GRIDFIT = 1,
FT_GLYPH_BBOX_TRUNCATE = 2,
FT_GLYPH_BBOX_PIXELS = 3
} FT_Glyph_BBox_Mode;
/* these constants are deprecated; use the corresponding */
/* `FT_Glyph_BBox_Mode` values instead */
#define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED
#define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS
#define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT
#define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE
#define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS
/**************************************************************************
*
* @function:
* FT_Glyph_Get_CBox
*
* @description:
* Return a glyph's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* glyph ::
* A handle to the source glyph object.
*
* mode ::
* The mode that indicates how to interpret the returned bounding box
* values.
*
* @output:
* acbox ::
* The glyph coordinate bounding box. Coordinates are expressed in
* 1/64th of pixels if it is grid-fitted.
*
* @note:
* Coordinates are relative to the glyph origin, using the y~upwards
* convention.
*
* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode` must
* be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6
* pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS is another name for
* this constant.
*
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get
* reasonable values for the CBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the CBox, which can be
* eventually converted back to font units.
*
* Note that the maximum coordinates are exclusive, which means that one
* can compute the width and height of the glyph image (be it in integer
* or 26.6 pixels) as:
*
* ```
* width = bbox.xMax - bbox.xMin;
* height = bbox.yMax - bbox.yMin;
* ```
*
* Note also that for 26.6 coordinates, if `bbox_mode` is set to
* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted,
* which corresponds to:
*
* ```
* bbox.xMin = FLOOR(bbox.xMin);
* bbox.yMin = FLOOR(bbox.yMin);
* bbox.xMax = CEILING(bbox.xMax);
* bbox.yMax = CEILING(bbox.yMax);
* ```
*
* To get the bbox in pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_TRUNCATE.
*
* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_PIXELS.
*/
FT_EXPORT( void )
FT_Glyph_Get_CBox( FT_Glyph glyph,
FT_UInt bbox_mode,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Glyph_To_Bitmap
*
* @description:
* Convert a given glyph object to a bitmap glyph object.
*
* @inout:
* the_glyph ::
* A pointer to a handle to the target glyph.
*
* @input:
* render_mode ::
* An enumeration that describes how the data is rendered.
*
* origin ::
* A pointer to a vector used to translate the glyph image before
* rendering. Can be~0 (if no translation). The origin is expressed
* in 26.6 pixels.
*
* destroy ::
* A boolean that indicates that the original glyph image should be
* destroyed by this function. It is never destroyed in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing if the glyph format isn't scalable.
*
* The glyph image is translated with the `origin` vector before
* rendering.
*
* The first parameter is a pointer to an @FT_Glyph handle that will be
* _replaced_ by this function (with newly allocated data). Typically,
* you would do something like the following (omitting error handling).
*
* ```
* FT_Glyph glyph;
* FT_BitmapGlyph glyph_bitmap;
*
*
* // load glyph
* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );
*
* // extract glyph image
* error = FT_Get_Glyph( face->glyph, &glyph );
*
* // convert to a bitmap (default render mode + destroying old)
* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )
* {
* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,
* 0, 1 );
* if ( error ) // `glyph' unchanged
* ...
* }
*
* // access bitmap content by typecasting
* glyph_bitmap = (FT_BitmapGlyph)glyph;
*
* // do funny stuff with it, like blitting/drawing
* ...
*
* // discard glyph image (bitmap or not)
* FT_Done_Glyph( glyph );
* ```
*
* Here is another example, again without error handling.
*
* ```
* FT_Glyph glyphs[MAX_GLYPHS]
*
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
* FT_Get_Glyph ( face->glyph, &glyphs[idx] );
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* {
* FT_Glyph bitmap = glyphs[idx];
*
*
* ...
*
* // after this call, `bitmap' no longer points into
* // the `glyphs' array (and the old value isn't destroyed)
* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );
*
* ...
*
* FT_Done_Glyph( bitmap );
* }
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* FT_Done_Glyph( glyphs[idx] );
* ```
*/
FT_EXPORT( FT_Error )
FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
FT_Render_Mode render_mode,
const FT_Vector* origin,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Done_Glyph
*
* @description:
* Destroy a given glyph.
*
* @input:
* glyph ::
* A handle to the target glyph object.
*/
FT_EXPORT( void )
FT_Done_Glyph( FT_Glyph glyph );
/* */
/* other helpful functions */
/**************************************************************************
*
* @section:
* computations
*
*/
/**************************************************************************
*
* @function:
* FT_Matrix_Multiply
*
* @description:
* Perform the matrix operation `b = a*b`.
*
* @input:
* a ::
* A pointer to matrix `a`.
*
* @inout:
* b ::
* A pointer to matrix `b`.
*
* @note:
* The result is undefined if either `a` or `b` is zero.
*
* Since the function uses wrap-around arithmetic, results become
* meaningless if the arguments are very large.
*/
FT_EXPORT( void )
FT_Matrix_Multiply( const FT_Matrix* a,
FT_Matrix* b );
/**************************************************************************
*
* @function:
* FT_Matrix_Invert
*
* @description:
* Invert a 2x2 matrix. Return an error if it can't be inverted.
*
* @inout:
* matrix ::
* A pointer to the target matrix. Remains untouched in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Matrix_Invert( FT_Matrix* matrix );
/* */
FT_END_HEADER
#endif /* FTGLYPH_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftglyph.h
|
C++
|
gpl-3.0
| 20,869
|
/****************************************************************************
*
* ftgxval.h
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
* Copyright (C) 2004-2022 by
* Masatake YAMATO, Redhat K.K,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* gxvalid is derived from both gxlayout module and otvalid module.
* Development of gxlayout is supported by the Information-technology
* Promotion Agency(IPA), Japan.
*
*/
#ifndef FTGXVAL_H_
#define FTGXVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gx_validation
*
* @title:
* TrueTypeGX/AAT Validation
*
* @abstract:
* An API to validate TrueTypeGX/AAT tables.
*
* @description:
* This section contains the declaration of functions to validate some
* TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak,
* prop, lcar).
*
* @order:
* FT_TrueTypeGX_Validate
* FT_TrueTypeGX_Free
*
* FT_ClassicKern_Validate
* FT_ClassicKern_Free
*
* FT_VALIDATE_GX_LENGTH
* FT_VALIDATE_GXXXX
* FT_VALIDATE_CKERNXXX
*
*/
/**************************************************************************
*
*
* Warning: Use `FT_VALIDATE_XXX` to validate a table.
* Following definitions are for gxvalid developers.
*
*
*/
#define FT_VALIDATE_feat_INDEX 0
#define FT_VALIDATE_mort_INDEX 1
#define FT_VALIDATE_morx_INDEX 2
#define FT_VALIDATE_bsln_INDEX 3
#define FT_VALIDATE_just_INDEX 4
#define FT_VALIDATE_kern_INDEX 5
#define FT_VALIDATE_opbd_INDEX 6
#define FT_VALIDATE_trak_INDEX 7
#define FT_VALIDATE_prop_INDEX 8
#define FT_VALIDATE_lcar_INDEX 9
#define FT_VALIDATE_GX_LAST_INDEX FT_VALIDATE_lcar_INDEX
/**************************************************************************
*
* @macro:
* FT_VALIDATE_GX_LENGTH
*
* @description:
* The number of tables checked in this module. Use it as a parameter
* for the `table-length` argument of function @FT_TrueTypeGX_Validate.
*/
#define FT_VALIDATE_GX_LENGTH ( FT_VALIDATE_GX_LAST_INDEX + 1 )
/* */
/* Up to 0x1000 is used by otvalid.
Ox2xxx is reserved for feature OT extension. */
#define FT_VALIDATE_GX_START 0x4000
#define FT_VALIDATE_GX_BITFIELD( tag ) \
( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX )
/**************************************************************************
*
* @enum:
* FT_VALIDATE_GXXXX
*
* @description:
* A list of bit-field constants used with @FT_TrueTypeGX_Validate to
* indicate which TrueTypeGX/AAT Type tables should be validated.
*
* @values:
* FT_VALIDATE_feat ::
* Validate 'feat' table.
*
* FT_VALIDATE_mort ::
* Validate 'mort' table.
*
* FT_VALIDATE_morx ::
* Validate 'morx' table.
*
* FT_VALIDATE_bsln ::
* Validate 'bsln' table.
*
* FT_VALIDATE_just ::
* Validate 'just' table.
*
* FT_VALIDATE_kern ::
* Validate 'kern' table.
*
* FT_VALIDATE_opbd ::
* Validate 'opbd' table.
*
* FT_VALIDATE_trak ::
* Validate 'trak' table.
*
* FT_VALIDATE_prop ::
* Validate 'prop' table.
*
* FT_VALIDATE_lcar ::
* Validate 'lcar' table.
*
* FT_VALIDATE_GX ::
* Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern,
* opbd, trak, prop and lcar).
*
*/
#define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat )
#define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort )
#define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx )
#define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln )
#define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just )
#define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern )
#define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd )
#define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak )
#define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop )
#define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar )
#define FT_VALIDATE_GX ( FT_VALIDATE_feat | \
FT_VALIDATE_mort | \
FT_VALIDATE_morx | \
FT_VALIDATE_bsln | \
FT_VALIDATE_just | \
FT_VALIDATE_kern | \
FT_VALIDATE_opbd | \
FT_VALIDATE_trak | \
FT_VALIDATE_prop | \
FT_VALIDATE_lcar )
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Validate
*
* @description:
* Validate various TrueTypeGX tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_GXXXX for possible values.
*
* table_length ::
* The size of the `tables` array. Normally, @FT_VALIDATE_GX_LENGTH
* should be passed.
*
* @output:
* tables ::
* The array where all validated sfnt tables are stored. The array
* itself must be allocated by a client.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with TrueTypeGX fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the buffers pointed to by
* each `tables` element, by calling @FT_TrueTypeGX_Free. A `NULL` value
* indicates that the table either doesn't exist in the font, the
* application hasn't asked for validation, or the validator doesn't have
* the ability to validate the sfnt table.
*/
FT_EXPORT( FT_Error )
FT_TrueTypeGX_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_length );
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Free
*
* @description:
* Free the buffer allocated by TrueTypeGX validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer allocated by @FT_TrueTypeGX_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_TrueTypeGX_Validate only.
*/
FT_EXPORT( void )
FT_TrueTypeGX_Free( FT_Face face,
FT_Bytes table );
/**************************************************************************
*
* @enum:
* FT_VALIDATE_CKERNXXX
*
* @description:
* A list of bit-field constants used with @FT_ClassicKern_Validate to
* indicate the classic kern dialect or dialects. If the selected type
* doesn't fit, @FT_ClassicKern_Validate regards the table as invalid.
*
* @values:
* FT_VALIDATE_MS ::
* Handle the 'kern' table as a classic Microsoft kern table.
*
* FT_VALIDATE_APPLE ::
* Handle the 'kern' table as a classic Apple kern table.
*
* FT_VALIDATE_CKERN ::
* Handle the 'kern' as either classic Apple or Microsoft kern table.
*/
#define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 )
#define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 )
#define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE )
/**************************************************************************
*
* @function:
* FT_ClassicKern_Validate
*
* @description:
* Validate classic (16-bit format) kern table to assure that the
* offsets and indices are valid. The idea is that a higher-level
* library that actually does the text layout can access those tables
* without error checking (which can be quite time consuming).
*
* The 'kern' table validator in @FT_TrueTypeGX_Validate deals with both
* the new 32-bit format and the classic 16-bit format, while
* FT_ClassicKern_Validate only supports the classic 16-bit format.
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the dialect to be validated. See
* @FT_VALIDATE_CKERNXXX for possible values.
*
* @output:
* ckern_table ::
* A pointer to the kern table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* After use, the application should deallocate the buffers pointed to by
* `ckern_table`, by calling @FT_ClassicKern_Free. A `NULL` value
* indicates that the table doesn't exist in the font.
*/
FT_EXPORT( FT_Error )
FT_ClassicKern_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *ckern_table );
/**************************************************************************
*
* @function:
* FT_ClassicKern_Free
*
* @description:
* Free the buffer allocated by classic Kern validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_ClassicKern_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_ClassicKern_Validate only.
*/
FT_EXPORT( void )
FT_ClassicKern_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTGXVAL_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftgxval.h
|
C++
|
gpl-3.0
| 10,625
|
/****************************************************************************
*
* ftgzip.h
*
* Gzip-compressed stream support.
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGZIP_H_
#define FTGZIP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gzip
*
* @title:
* GZIP Streams
*
* @abstract:
* Using gzip-compressed font files.
*
* @description:
* In certain builds of the library, gzip compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a gzipped stream from it
* and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Gzip-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenGzip
*
* @description:
* Open a new stream to parse gzip-compressed font files. This is mainly
* used to support the compressed `*.pcf.gz` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenGzip( FT_Stream stream,
FT_Stream source );
/**************************************************************************
*
* @function:
* FT_Gzip_Uncompress
*
* @description:
* Decompress a zipped input buffer into an output buffer. This function
* is modeled after zlib's `uncompress` function.
*
* @input:
* memory ::
* A FreeType memory handle.
*
* input ::
* The input buffer.
*
* input_len ::
* The length of the input buffer.
*
* @output:
* output ::
* The output buffer.
*
* @inout:
* output_len ::
* Before calling the function, this is the total size of the output
* buffer, which must be large enough to hold the entire uncompressed
* data (so the size of the uncompressed data must be known in
* advance). After calling the function, `output_len` is the size of
* the used data in `output`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*
* @since:
* 2.5.1
*/
FT_EXPORT( FT_Error )
FT_Gzip_Uncompress( FT_Memory memory,
FT_Byte* output,
FT_ULong* output_len,
const FT_Byte* input,
FT_ULong input_len );
/* */
FT_END_HEADER
#endif /* FTGZIP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftgzip.h
|
C++
|
gpl-3.0
| 4,211
|
/****************************************************************************
*
* ftimage.h
*
* FreeType glyph image formats and default raster interface
* (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* Note: A 'raster' is simply a scan-line converter, used to render
* FT_Outlines into FT_Bitmaps.
*
*/
#ifndef FTIMAGE_H_
#define FTIMAGE_H_
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* basic_types
*
*/
/**************************************************************************
*
* @type:
* FT_Pos
*
* @description:
* The type FT_Pos is used to store vectorial coordinates. Depending on
* the context, these can represent distances in integer font units, or
* 16.16, or 26.6 fixed-point pixel coordinates.
*/
typedef signed long FT_Pos;
/**************************************************************************
*
* @struct:
* FT_Vector
*
* @description:
* A simple structure used to store a 2D vector; coordinates are of the
* FT_Pos type.
*
* @fields:
* x ::
* The horizontal coordinate.
* y ::
* The vertical coordinate.
*/
typedef struct FT_Vector_
{
FT_Pos x;
FT_Pos y;
} FT_Vector;
/**************************************************************************
*
* @struct:
* FT_BBox
*
* @description:
* A structure used to hold an outline's bounding box, i.e., the
* coordinates of its extrema in the horizontal and vertical directions.
*
* @fields:
* xMin ::
* The horizontal minimum (left-most).
*
* yMin ::
* The vertical minimum (bottom-most).
*
* xMax ::
* The horizontal maximum (right-most).
*
* yMax ::
* The vertical maximum (top-most).
*
* @note:
* The bounding box is specified with the coordinates of the lower left
* and the upper right corner. In PostScript, those values are often
* called (llx,lly) and (urx,ury), respectively.
*
* If `yMin` is negative, this value gives the glyph's descender.
* Otherwise, the glyph doesn't descend below the baseline. Similarly,
* if `ymax` is positive, this value gives the glyph's ascender.
*
* `xMin` gives the horizontal distance from the glyph's origin to the
* left edge of the glyph's bounding box. If `xMin` is negative, the
* glyph extends to the left of the origin.
*/
typedef struct FT_BBox_
{
FT_Pos xMin, yMin;
FT_Pos xMax, yMax;
} FT_BBox;
/**************************************************************************
*
* @enum:
* FT_Pixel_Mode
*
* @description:
* An enumeration type used to describe the format of pixels in a given
* bitmap. Note that additional formats may be added in the future.
*
* @values:
* FT_PIXEL_MODE_NONE ::
* Value~0 is reserved.
*
* FT_PIXEL_MODE_MONO ::
* A monochrome bitmap, using 1~bit per pixel. Note that pixels are
* stored in most-significant order (MSB), which means that the
* left-most pixel in a byte has value 128.
*
* FT_PIXEL_MODE_GRAY ::
* An 8-bit bitmap, generally used to represent anti-aliased glyph
* images. Each pixel is stored in one byte. Note that the number of
* 'gray' levels is stored in the `num_grays` field of the @FT_Bitmap
* structure (it generally is 256).
*
* FT_PIXEL_MODE_GRAY2 ::
* A 2-bit per pixel bitmap, used to represent embedded anti-aliased
* bitmaps in font files according to the OpenType specification. We
* haven't found a single font using this format, however.
*
* FT_PIXEL_MODE_GRAY4 ::
* A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps
* in font files according to the OpenType specification. We haven't
* found a single font using this format, however.
*
* FT_PIXEL_MODE_LCD ::
* An 8-bit bitmap, representing RGB or BGR decimated glyph images used
* for display on LCD displays; the bitmap is three times wider than
* the original glyph image. See also @FT_RENDER_MODE_LCD.
*
* FT_PIXEL_MODE_LCD_V ::
* An 8-bit bitmap, representing RGB or BGR decimated glyph images used
* for display on rotated LCD displays; the bitmap is three times
* taller than the original glyph image. See also
* @FT_RENDER_MODE_LCD_V.
*
* FT_PIXEL_MODE_BGRA ::
* [Since 2.5] An image with four 8-bit channels per pixel,
* representing a color image (such as emoticons) with alpha channel.
* For each pixel, the format is BGRA, which means, the blue channel
* comes first in memory. The color channels are pre-multiplied and in
* the sRGB colorspace. For example, full red at half-translucent
* opacity will be represented as '00,00,80,80', not '00,00,FF,80'.
* See also @FT_LOAD_COLOR.
*/
typedef enum FT_Pixel_Mode_
{
FT_PIXEL_MODE_NONE = 0,
FT_PIXEL_MODE_MONO,
FT_PIXEL_MODE_GRAY,
FT_PIXEL_MODE_GRAY2,
FT_PIXEL_MODE_GRAY4,
FT_PIXEL_MODE_LCD,
FT_PIXEL_MODE_LCD_V,
FT_PIXEL_MODE_BGRA,
FT_PIXEL_MODE_MAX /* do not remove */
} FT_Pixel_Mode;
/* these constants are deprecated; use the corresponding `FT_Pixel_Mode` */
/* values instead. */
#define ft_pixel_mode_none FT_PIXEL_MODE_NONE
#define ft_pixel_mode_mono FT_PIXEL_MODE_MONO
#define ft_pixel_mode_grays FT_PIXEL_MODE_GRAY
#define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2
#define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4
/* */
/* For debugging, the @FT_Pixel_Mode enumeration must stay in sync */
/* with the `pixel_modes` array in file `ftobjs.c`. */
/**************************************************************************
*
* @struct:
* FT_Bitmap
*
* @description:
* A structure used to describe a bitmap or pixmap to the raster. Note
* that we now manage pixmaps of various depths through the `pixel_mode`
* field.
*
* @fields:
* rows ::
* The number of bitmap rows.
*
* width ::
* The number of pixels in bitmap row.
*
* pitch ::
* The pitch's absolute value is the number of bytes taken by one
* bitmap row, including padding. However, the pitch is positive when
* the bitmap has a 'down' flow, and negative when it has an 'up' flow.
* In all cases, the pitch is an offset to add to a bitmap pointer in
* order to go down one row.
*
* Note that 'padding' means the alignment of a bitmap to a byte
* border, and FreeType functions normally align to the smallest
* possible integer value.
*
* For the B/W rasterizer, `pitch` is always an even number.
*
* To change the pitch of a bitmap (say, to make it a multiple of 4),
* use @FT_Bitmap_Convert. Alternatively, you might use callback
* functions to directly render to the application's surface; see the
* file `example2.cpp` in the tutorial for a demonstration.
*
* buffer ::
* A typeless pointer to the bitmap buffer. This value should be
* aligned on 32-bit boundaries in most cases.
*
* num_grays ::
* This field is only used with @FT_PIXEL_MODE_GRAY; it gives the
* number of gray levels used in the bitmap.
*
* pixel_mode ::
* The pixel mode, i.e., how pixel bits are stored. See @FT_Pixel_Mode
* for possible values.
*
* palette_mode ::
* This field is intended for paletted pixel modes; it indicates how
* the palette is stored. Not used currently.
*
* palette ::
* A typeless pointer to the bitmap palette; this field is intended for
* paletted pixel modes. Not used currently.
*/
typedef struct FT_Bitmap_
{
unsigned int rows;
unsigned int width;
int pitch;
unsigned char* buffer;
unsigned short num_grays;
unsigned char pixel_mode;
unsigned char palette_mode;
void* palette;
} FT_Bitmap;
/**************************************************************************
*
* @section:
* outline_processing
*
*/
/**************************************************************************
*
* @struct:
* FT_Outline
*
* @description:
* This structure is used to describe an outline to the scan-line
* converter.
*
* @fields:
* n_contours ::
* The number of contours in the outline.
*
* n_points ::
* The number of points in the outline.
*
* points ::
* A pointer to an array of `n_points` @FT_Vector elements, giving the
* outline's point coordinates.
*
* tags ::
* A pointer to an array of `n_points` chars, giving each outline
* point's type.
*
* If bit~0 is unset, the point is 'off' the curve, i.e., a Bezier
* control point, while it is 'on' if set.
*
* Bit~1 is meaningful for 'off' points only. If set, it indicates a
* third-order Bezier arc control point; and a second-order control
* point if unset.
*
* If bit~2 is set, bits 5-7 contain the drop-out mode (as defined in
* the OpenType specification; the value is the same as the argument to
* the 'SCANMODE' instruction).
*
* Bits 3 and~4 are reserved for internal purposes.
*
* contours ::
* An array of `n_contours` shorts, giving the end point of each
* contour within the outline. For example, the first contour is
* defined by the points '0' to `contours[0]`, the second one is
* defined by the points `contours[0]+1` to `contours[1]`, etc.
*
* flags ::
* A set of bit flags used to characterize the outline and give hints
* to the scan-converter and hinter on how to convert/grid-fit it. See
* @FT_OUTLINE_XXX.
*
* @note:
* The B/W rasterizer only checks bit~2 in the `tags` array for the first
* point of each contour. The drop-out mode as given with
* @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and
* @FT_OUTLINE_INCLUDE_STUBS in `flags` is then overridden.
*/
typedef struct FT_Outline_
{
short n_contours; /* number of contours in glyph */
short n_points; /* number of points in the glyph */
FT_Vector* points; /* the outline's points */
char* tags; /* the points flags */
short* contours; /* the contour end points */
int flags; /* outline masks */
} FT_Outline;
/* */
/* Following limits must be consistent with */
/* FT_Outline.{n_contours,n_points} */
#define FT_OUTLINE_CONTOURS_MAX SHRT_MAX
#define FT_OUTLINE_POINTS_MAX SHRT_MAX
/**************************************************************************
*
* @enum:
* FT_OUTLINE_XXX
*
* @description:
* A list of bit-field constants used for the flags in an outline's
* `flags` field.
*
* @values:
* FT_OUTLINE_NONE ::
* Value~0 is reserved.
*
* FT_OUTLINE_OWNER ::
* If set, this flag indicates that the outline's field arrays (i.e.,
* `points`, `flags`, and `contours`) are 'owned' by the outline
* object, and should thus be freed when it is destroyed.
*
* FT_OUTLINE_EVEN_ODD_FILL ::
* By default, outlines are filled using the non-zero winding rule. If
* set to 1, the outline will be filled using the even-odd fill rule
* (only works with the smooth rasterizer).
*
* FT_OUTLINE_REVERSE_FILL ::
* By default, outside contours of an outline are oriented in
* clock-wise direction, as defined in the TrueType specification.
* This flag is set if the outline uses the opposite direction
* (typically for Type~1 fonts). This flag is ignored by the scan
* converter.
*
* FT_OUTLINE_IGNORE_DROPOUTS ::
* By default, the scan converter will try to detect drop-outs in an
* outline and correct the glyph bitmap to ensure consistent shape
* continuity. If set, this flag hints the scan-line converter to
* ignore such cases. See below for more information.
*
* FT_OUTLINE_SMART_DROPOUTS ::
* Select smart dropout control. If unset, use simple dropout control.
* Ignored if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more
* information.
*
* FT_OUTLINE_INCLUDE_STUBS ::
* If set, turn pixels on for 'stubs', otherwise exclude them. Ignored
* if @FT_OUTLINE_IGNORE_DROPOUTS is set. See below for more
* information.
*
* FT_OUTLINE_OVERLAP ::
* [Since 2.10.3] This flag indicates that this outline contains
* overlapping contours and the anti-aliased renderer should perform
* oversampling to mitigate possible artifacts. This flag should _not_
* be set for well designed glyphs without overlaps because it quadruples
* the rendering time.
*
* FT_OUTLINE_HIGH_PRECISION ::
* This flag indicates that the scan-line converter should try to
* convert this outline to bitmaps with the highest possible quality.
* It is typically set for small character sizes. Note that this is
* only a hint that might be completely ignored by a given
* scan-converter.
*
* FT_OUTLINE_SINGLE_PASS ::
* This flag is set to force a given scan-converter to only use a
* single pass over the outline to render a bitmap glyph image.
* Normally, it is set for very large character sizes. It is only a
* hint that might be completely ignored by a given scan-converter.
*
* @note:
* The flags @FT_OUTLINE_IGNORE_DROPOUTS, @FT_OUTLINE_SMART_DROPOUTS, and
* @FT_OUTLINE_INCLUDE_STUBS are ignored by the smooth rasterizer.
*
* There exists a second mechanism to pass the drop-out mode to the B/W
* rasterizer; see the `tags` field in @FT_Outline.
*
* Please refer to the description of the 'SCANTYPE' instruction in the
* OpenType specification (in file `ttinst1.doc`) how simple drop-outs,
* smart drop-outs, and stubs are defined.
*/
#define FT_OUTLINE_NONE 0x0
#define FT_OUTLINE_OWNER 0x1
#define FT_OUTLINE_EVEN_ODD_FILL 0x2
#define FT_OUTLINE_REVERSE_FILL 0x4
#define FT_OUTLINE_IGNORE_DROPOUTS 0x8
#define FT_OUTLINE_SMART_DROPOUTS 0x10
#define FT_OUTLINE_INCLUDE_STUBS 0x20
#define FT_OUTLINE_OVERLAP 0x40
#define FT_OUTLINE_HIGH_PRECISION 0x100
#define FT_OUTLINE_SINGLE_PASS 0x200
/* these constants are deprecated; use the corresponding */
/* `FT_OUTLINE_XXX` values instead */
#define ft_outline_none FT_OUTLINE_NONE
#define ft_outline_owner FT_OUTLINE_OWNER
#define ft_outline_even_odd_fill FT_OUTLINE_EVEN_ODD_FILL
#define ft_outline_reverse_fill FT_OUTLINE_REVERSE_FILL
#define ft_outline_ignore_dropouts FT_OUTLINE_IGNORE_DROPOUTS
#define ft_outline_high_precision FT_OUTLINE_HIGH_PRECISION
#define ft_outline_single_pass FT_OUTLINE_SINGLE_PASS
/* */
#define FT_CURVE_TAG( flag ) ( flag & 0x03 )
/* see the `tags` field in `FT_Outline` for a description of the values */
#define FT_CURVE_TAG_ON 0x01
#define FT_CURVE_TAG_CONIC 0x00
#define FT_CURVE_TAG_CUBIC 0x02
#define FT_CURVE_TAG_HAS_SCANMODE 0x04
#define FT_CURVE_TAG_TOUCH_X 0x08 /* reserved for TrueType hinter */
#define FT_CURVE_TAG_TOUCH_Y 0x10 /* reserved for TrueType hinter */
#define FT_CURVE_TAG_TOUCH_BOTH ( FT_CURVE_TAG_TOUCH_X | \
FT_CURVE_TAG_TOUCH_Y )
/* values 0x20, 0x40, and 0x80 are reserved */
/* these constants are deprecated; use the corresponding */
/* `FT_CURVE_TAG_XXX` values instead */
#define FT_Curve_Tag_On FT_CURVE_TAG_ON
#define FT_Curve_Tag_Conic FT_CURVE_TAG_CONIC
#define FT_Curve_Tag_Cubic FT_CURVE_TAG_CUBIC
#define FT_Curve_Tag_Touch_X FT_CURVE_TAG_TOUCH_X
#define FT_Curve_Tag_Touch_Y FT_CURVE_TAG_TOUCH_Y
/**************************************************************************
*
* @functype:
* FT_Outline_MoveToFunc
*
* @description:
* A function pointer type used to describe the signature of a 'move to'
* function during outline walking/decomposition.
*
* A 'move to' is emitted to start a new contour in an outline.
*
* @input:
* to ::
* A pointer to the target point of the 'move to'.
*
* user ::
* A typeless pointer, which is passed from the caller of the
* decomposition function.
*
* @return:
* Error code. 0~means success.
*/
typedef int
(*FT_Outline_MoveToFunc)( const FT_Vector* to,
void* user );
#define FT_Outline_MoveTo_Func FT_Outline_MoveToFunc
/**************************************************************************
*
* @functype:
* FT_Outline_LineToFunc
*
* @description:
* A function pointer type used to describe the signature of a 'line to'
* function during outline walking/decomposition.
*
* A 'line to' is emitted to indicate a segment in the outline.
*
* @input:
* to ::
* A pointer to the target point of the 'line to'.
*
* user ::
* A typeless pointer, which is passed from the caller of the
* decomposition function.
*
* @return:
* Error code. 0~means success.
*/
typedef int
(*FT_Outline_LineToFunc)( const FT_Vector* to,
void* user );
#define FT_Outline_LineTo_Func FT_Outline_LineToFunc
/**************************************************************************
*
* @functype:
* FT_Outline_ConicToFunc
*
* @description:
* A function pointer type used to describe the signature of a 'conic to'
* function during outline walking or decomposition.
*
* A 'conic to' is emitted to indicate a second-order Bezier arc in the
* outline.
*
* @input:
* control ::
* An intermediate control point between the last position and the new
* target in `to`.
*
* to ::
* A pointer to the target end point of the conic arc.
*
* user ::
* A typeless pointer, which is passed from the caller of the
* decomposition function.
*
* @return:
* Error code. 0~means success.
*/
typedef int
(*FT_Outline_ConicToFunc)( const FT_Vector* control,
const FT_Vector* to,
void* user );
#define FT_Outline_ConicTo_Func FT_Outline_ConicToFunc
/**************************************************************************
*
* @functype:
* FT_Outline_CubicToFunc
*
* @description:
* A function pointer type used to describe the signature of a 'cubic to'
* function during outline walking or decomposition.
*
* A 'cubic to' is emitted to indicate a third-order Bezier arc.
*
* @input:
* control1 ::
* A pointer to the first Bezier control point.
*
* control2 ::
* A pointer to the second Bezier control point.
*
* to ::
* A pointer to the target end point.
*
* user ::
* A typeless pointer, which is passed from the caller of the
* decomposition function.
*
* @return:
* Error code. 0~means success.
*/
typedef int
(*FT_Outline_CubicToFunc)( const FT_Vector* control1,
const FT_Vector* control2,
const FT_Vector* to,
void* user );
#define FT_Outline_CubicTo_Func FT_Outline_CubicToFunc
/**************************************************************************
*
* @struct:
* FT_Outline_Funcs
*
* @description:
* A structure to hold various function pointers used during outline
* decomposition in order to emit segments, conic, and cubic Beziers.
*
* @fields:
* move_to ::
* The 'move to' emitter.
*
* line_to ::
* The segment emitter.
*
* conic_to ::
* The second-order Bezier arc emitter.
*
* cubic_to ::
* The third-order Bezier arc emitter.
*
* shift ::
* The shift that is applied to coordinates before they are sent to the
* emitter.
*
* delta ::
* The delta that is applied to coordinates before they are sent to the
* emitter, but after the shift.
*
* @note:
* The point coordinates sent to the emitters are the transformed version
* of the original coordinates (this is important for high accuracy
* during scan-conversion). The transformation is simple:
*
* ```
* x' = (x << shift) - delta
* y' = (y << shift) - delta
* ```
*
* Set the values of `shift` and `delta` to~0 to get the original point
* coordinates.
*/
typedef struct FT_Outline_Funcs_
{
FT_Outline_MoveToFunc move_to;
FT_Outline_LineToFunc line_to;
FT_Outline_ConicToFunc conic_to;
FT_Outline_CubicToFunc cubic_to;
int shift;
FT_Pos delta;
} FT_Outline_Funcs;
/**************************************************************************
*
* @section:
* basic_types
*
*/
/**************************************************************************
*
* @macro:
* FT_IMAGE_TAG
*
* @description:
* This macro converts four-letter tags to an unsigned long type.
*
* @note:
* Since many 16-bit compilers don't like 32-bit enumerations, you should
* redefine this macro in case of problems to something like this:
*
* ```
* #define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) value
* ```
*
* to get a simple enumeration without assigning special numbers.
*/
#ifndef FT_IMAGE_TAG
#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \
value = ( ( FT_STATIC_BYTE_CAST( unsigned long, _x1 ) << 24 ) | \
( FT_STATIC_BYTE_CAST( unsigned long, _x2 ) << 16 ) | \
( FT_STATIC_BYTE_CAST( unsigned long, _x3 ) << 8 ) | \
FT_STATIC_BYTE_CAST( unsigned long, _x4 ) )
#endif /* FT_IMAGE_TAG */
/**************************************************************************
*
* @enum:
* FT_Glyph_Format
*
* @description:
* An enumeration type used to describe the format of a given glyph
* image. Note that this version of FreeType only supports two image
* formats, even though future font drivers will be able to register
* their own format.
*
* @values:
* FT_GLYPH_FORMAT_NONE ::
* The value~0 is reserved.
*
* FT_GLYPH_FORMAT_COMPOSITE ::
* The glyph image is a composite of several other images. This format
* is _only_ used with @FT_LOAD_NO_RECURSE, and is used to report
* compound glyphs (like accented characters).
*
* FT_GLYPH_FORMAT_BITMAP ::
* The glyph image is a bitmap, and can be described as an @FT_Bitmap.
* You generally need to access the `bitmap` field of the
* @FT_GlyphSlotRec structure to read it.
*
* FT_GLYPH_FORMAT_OUTLINE ::
* The glyph image is a vectorial outline made of line segments and
* Bezier arcs; it can be described as an @FT_Outline; you generally
* want to access the `outline` field of the @FT_GlyphSlotRec structure
* to read it.
*
* FT_GLYPH_FORMAT_PLOTTER ::
* The glyph image is a vectorial path with no inside and outside
* contours. Some Type~1 fonts, like those in the Hershey family,
* contain glyphs in this format. These are described as @FT_Outline,
* but FreeType isn't currently capable of rendering them correctly.
*
* FT_GLYPH_FORMAT_SVG ::
* [Since 2.12] The glyph is represented by an SVG document in the
* 'SVG~' table.
*/
typedef enum FT_Glyph_Format_
{
FT_IMAGE_TAG( FT_GLYPH_FORMAT_NONE, 0, 0, 0, 0 ),
FT_IMAGE_TAG( FT_GLYPH_FORMAT_COMPOSITE, 'c', 'o', 'm', 'p' ),
FT_IMAGE_TAG( FT_GLYPH_FORMAT_BITMAP, 'b', 'i', 't', 's' ),
FT_IMAGE_TAG( FT_GLYPH_FORMAT_OUTLINE, 'o', 'u', 't', 'l' ),
FT_IMAGE_TAG( FT_GLYPH_FORMAT_PLOTTER, 'p', 'l', 'o', 't' ),
FT_IMAGE_TAG( FT_GLYPH_FORMAT_SVG, 'S', 'V', 'G', ' ' )
} FT_Glyph_Format;
/* these constants are deprecated; use the corresponding */
/* `FT_Glyph_Format` values instead. */
#define ft_glyph_format_none FT_GLYPH_FORMAT_NONE
#define ft_glyph_format_composite FT_GLYPH_FORMAT_COMPOSITE
#define ft_glyph_format_bitmap FT_GLYPH_FORMAT_BITMAP
#define ft_glyph_format_outline FT_GLYPH_FORMAT_OUTLINE
#define ft_glyph_format_plotter FT_GLYPH_FORMAT_PLOTTER
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** R A S T E R D E F I N I T I O N S *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @section:
* raster
*
* @title:
* Scanline Converter
*
* @abstract:
* How vectorial outlines are converted into bitmaps and pixmaps.
*
* @description:
* A raster or a rasterizer is a scan converter in charge of producing a
* pixel coverage bitmap that can be used as an alpha channel when
* compositing a glyph with a background. FreeType comes with two
* rasterizers: bilevel `raster1` and anti-aliased `smooth` are two
* separate modules. They are usually called from the high-level
* @FT_Load_Glyph or @FT_Render_Glyph functions and produce the entire
* coverage bitmap at once, while staying largely invisible to users.
*
* Instead of working with complete coverage bitmaps, it is also possible
* to intercept consecutive pixel runs on the same scanline with the same
* coverage, called _spans_, and process them individually. Only the
* `smooth` rasterizer permits this when calling @FT_Outline_Render with
* @FT_Raster_Params as described below.
*
* Working with either complete bitmaps or spans it is important to think
* of them as colorless coverage objects suitable as alpha channels to
* blend arbitrary colors with a background. For best results, it is
* recommended to use gamma correction, too.
*
* This section also describes the public API needed to set up alternative
* @FT_Renderer modules.
*
* @order:
* FT_Span
* FT_SpanFunc
* FT_Raster_Params
* FT_RASTER_FLAG_XXX
*
* FT_Raster
* FT_Raster_NewFunc
* FT_Raster_DoneFunc
* FT_Raster_ResetFunc
* FT_Raster_SetModeFunc
* FT_Raster_RenderFunc
* FT_Raster_Funcs
*
*/
/**************************************************************************
*
* @struct:
* FT_Span
*
* @description:
* A structure to model a single span of consecutive pixels when
* rendering an anti-aliased bitmap.
*
* @fields:
* x ::
* The span's horizontal start position.
*
* len ::
* The span's length in pixels.
*
* coverage ::
* The span color/coverage, ranging from 0 (background) to 255
* (foreground).
*
* @note:
* This structure is used by the span drawing callback type named
* @FT_SpanFunc that takes the y~coordinate of the span as a parameter.
*
* The anti-aliased rasterizer produces coverage values from 0 to 255,
* this is, from completely transparent to completely opaque.
*/
typedef struct FT_Span_
{
short x;
unsigned short len;
unsigned char coverage;
} FT_Span;
/**************************************************************************
*
* @functype:
* FT_SpanFunc
*
* @description:
* A function used as a call-back by the anti-aliased renderer in order
* to let client applications draw themselves the pixel spans on each
* scan line.
*
* @input:
* y ::
* The scanline's upward y~coordinate.
*
* count ::
* The number of spans to draw on this scanline.
*
* spans ::
* A table of `count` spans to draw on the scanline.
*
* user ::
* User-supplied data that is passed to the callback.
*
* @note:
* This callback allows client applications to directly render the spans
* of the anti-aliased bitmap to any kind of surfaces.
*
* This can be used to write anti-aliased outlines directly to a given
* background bitmap using alpha compositing. It can also be used for
* oversampling and averaging.
*/
typedef void
(*FT_SpanFunc)( int y,
int count,
const FT_Span* spans,
void* user );
#define FT_Raster_Span_Func FT_SpanFunc
/**************************************************************************
*
* @functype:
* FT_Raster_BitTest_Func
*
* @description:
* Deprecated, unimplemented.
*/
typedef int
(*FT_Raster_BitTest_Func)( int y,
int x,
void* user );
/**************************************************************************
*
* @functype:
* FT_Raster_BitSet_Func
*
* @description:
* Deprecated, unimplemented.
*/
typedef void
(*FT_Raster_BitSet_Func)( int y,
int x,
void* user );
/**************************************************************************
*
* @enum:
* FT_RASTER_FLAG_XXX
*
* @description:
* A list of bit flag constants as used in the `flags` field of a
* @FT_Raster_Params structure.
*
* @values:
* FT_RASTER_FLAG_DEFAULT ::
* This value is 0.
*
* FT_RASTER_FLAG_AA ::
* This flag is set to indicate that an anti-aliased glyph image should
* be generated. Otherwise, it will be monochrome (1-bit).
*
* FT_RASTER_FLAG_DIRECT ::
* This flag is set to indicate direct rendering. In this mode, client
* applications must provide their own span callback. This lets them
* directly draw or compose over an existing bitmap. If this bit is
* _not_ set, the target pixmap's buffer _must_ be zeroed before
* rendering and the output will be clipped to its size.
*
* Direct rendering is only possible with anti-aliased glyphs.
*
* FT_RASTER_FLAG_CLIP ::
* This flag is only used in direct rendering mode. If set, the output
* will be clipped to a box specified in the `clip_box` field of the
* @FT_Raster_Params structure. Otherwise, the `clip_box` is
* effectively set to the bounding box and all spans are generated.
*
* FT_RASTER_FLAG_SDF ::
* This flag is set to indicate that a signed distance field glyph
* image should be generated. This is only used while rendering with
* the @FT_RENDER_MODE_SDF render mode.
*/
#define FT_RASTER_FLAG_DEFAULT 0x0
#define FT_RASTER_FLAG_AA 0x1
#define FT_RASTER_FLAG_DIRECT 0x2
#define FT_RASTER_FLAG_CLIP 0x4
#define FT_RASTER_FLAG_SDF 0x8
/* these constants are deprecated; use the corresponding */
/* `FT_RASTER_FLAG_XXX` values instead */
#define ft_raster_flag_default FT_RASTER_FLAG_DEFAULT
#define ft_raster_flag_aa FT_RASTER_FLAG_AA
#define ft_raster_flag_direct FT_RASTER_FLAG_DIRECT
#define ft_raster_flag_clip FT_RASTER_FLAG_CLIP
/**************************************************************************
*
* @struct:
* FT_Raster_Params
*
* @description:
* A structure to hold the parameters used by a raster's render function,
* passed as an argument to @FT_Outline_Render.
*
* @fields:
* target ::
* The target bitmap.
*
* source ::
* A pointer to the source glyph image (e.g., an @FT_Outline).
*
* flags ::
* The rendering flags.
*
* gray_spans ::
* The gray span drawing callback.
*
* black_spans ::
* Unused.
*
* bit_test ::
* Unused.
*
* bit_set ::
* Unused.
*
* user ::
* User-supplied data that is passed to each drawing callback.
*
* clip_box ::
* An optional span clipping box expressed in _integer_ pixels
* (not in 26.6 fixed-point units).
*
* @note:
* The @FT_RASTER_FLAG_AA bit flag must be set in the `flags` to
* generate an anti-aliased glyph bitmap, otherwise a monochrome bitmap
* is generated. The `target` should have appropriate pixel mode and its
* dimensions define the clipping region.
*
* If both @FT_RASTER_FLAG_AA and @FT_RASTER_FLAG_DIRECT bit flags
* are set in `flags`, the raster calls an @FT_SpanFunc callback
* `gray_spans` with `user` data as an argument ignoring `target`. This
* allows direct composition over a pre-existing user surface to perform
* the span drawing and composition. To optionally clip the spans, set
* the @FT_RASTER_FLAG_CLIP flag and `clip_box`. The monochrome raster
* does not support the direct mode.
*
* The gray-level rasterizer always uses 256 gray levels. If you want
* fewer gray levels, you have to use @FT_RASTER_FLAG_DIRECT and reduce
* the levels in the callback function.
*/
typedef struct FT_Raster_Params_
{
const FT_Bitmap* target;
const void* source;
int flags;
FT_SpanFunc gray_spans;
FT_SpanFunc black_spans; /* unused */
FT_Raster_BitTest_Func bit_test; /* unused */
FT_Raster_BitSet_Func bit_set; /* unused */
void* user;
FT_BBox clip_box;
} FT_Raster_Params;
/**************************************************************************
*
* @type:
* FT_Raster
*
* @description:
* An opaque handle (pointer) to a raster object. Each object can be
* used independently to convert an outline into a bitmap or pixmap.
*
* @note:
* In FreeType 2, all rasters are now encapsulated within specific
* @FT_Renderer modules and only used in their context.
*
*/
typedef struct FT_RasterRec_* FT_Raster;
/**************************************************************************
*
* @functype:
* FT_Raster_NewFunc
*
* @description:
* A function used to create a new raster object.
*
* @input:
* memory ::
* A handle to the memory allocator.
*
* @output:
* raster ::
* A handle to the new raster object.
*
* @return:
* Error code. 0~means success.
*
* @note:
* The `memory` parameter is a typeless pointer in order to avoid
* un-wanted dependencies on the rest of the FreeType code. In practice,
* it is an @FT_Memory object, i.e., a handle to the standard FreeType
* memory allocator. However, this field can be completely ignored by a
* given raster implementation.
*/
typedef int
(*FT_Raster_NewFunc)( void* memory,
FT_Raster* raster );
#define FT_Raster_New_Func FT_Raster_NewFunc
/**************************************************************************
*
* @functype:
* FT_Raster_DoneFunc
*
* @description:
* A function used to destroy a given raster object.
*
* @input:
* raster ::
* A handle to the raster object.
*/
typedef void
(*FT_Raster_DoneFunc)( FT_Raster raster );
#define FT_Raster_Done_Func FT_Raster_DoneFunc
/**************************************************************************
*
* @functype:
* FT_Raster_ResetFunc
*
* @description:
* FreeType used to provide an area of memory called the 'render pool'
* available to all registered rasterizers. This was not thread safe,
* however, and now FreeType never allocates this pool.
*
* This function is called after a new raster object is created.
*
* @input:
* raster ::
* A handle to the new raster object.
*
* pool_base ::
* Previously, the address in memory of the render pool. Set this to
* `NULL`.
*
* pool_size ::
* Previously, the size in bytes of the render pool. Set this to 0.
*
* @note:
* Rasterizers should rely on dynamic or stack allocation if they want to
* (a handle to the memory allocator is passed to the rasterizer
* constructor).
*/
typedef void
(*FT_Raster_ResetFunc)( FT_Raster raster,
unsigned char* pool_base,
unsigned long pool_size );
#define FT_Raster_Reset_Func FT_Raster_ResetFunc
/**************************************************************************
*
* @functype:
* FT_Raster_SetModeFunc
*
* @description:
* This function is a generic facility to change modes or attributes in a
* given raster. This can be used for debugging purposes, or simply to
* allow implementation-specific 'features' in a given raster module.
*
* @input:
* raster ::
* A handle to the new raster object.
*
* mode ::
* A 4-byte tag used to name the mode or property.
*
* args ::
* A pointer to the new mode/property to use.
*/
typedef int
(*FT_Raster_SetModeFunc)( FT_Raster raster,
unsigned long mode,
void* args );
#define FT_Raster_Set_Mode_Func FT_Raster_SetModeFunc
/**************************************************************************
*
* @functype:
* FT_Raster_RenderFunc
*
* @description:
* Invoke a given raster to scan-convert a given glyph image into a
* target bitmap.
*
* @input:
* raster ::
* A handle to the raster object.
*
* params ::
* A pointer to an @FT_Raster_Params structure used to store the
* rendering parameters.
*
* @return:
* Error code. 0~means success.
*
* @note:
* The exact format of the source image depends on the raster's glyph
* format defined in its @FT_Raster_Funcs structure. It can be an
* @FT_Outline or anything else in order to support a large array of
* glyph formats.
*
* Note also that the render function can fail and return a
* `FT_Err_Unimplemented_Feature` error code if the raster used does not
* support direct composition.
*/
typedef int
(*FT_Raster_RenderFunc)( FT_Raster raster,
const FT_Raster_Params* params );
#define FT_Raster_Render_Func FT_Raster_RenderFunc
/**************************************************************************
*
* @struct:
* FT_Raster_Funcs
*
* @description:
* A structure used to describe a given raster class to the library.
*
* @fields:
* glyph_format ::
* The supported glyph format for this raster.
*
* raster_new ::
* The raster constructor.
*
* raster_reset ::
* Used to reset the render pool within the raster.
*
* raster_render ::
* A function to render a glyph into a given bitmap.
*
* raster_done ::
* The raster destructor.
*/
typedef struct FT_Raster_Funcs_
{
FT_Glyph_Format glyph_format;
FT_Raster_NewFunc raster_new;
FT_Raster_ResetFunc raster_reset;
FT_Raster_SetModeFunc raster_set_mode;
FT_Raster_RenderFunc raster_render;
FT_Raster_DoneFunc raster_done;
} FT_Raster_Funcs;
/* */
FT_END_HEADER
#endif /* FTIMAGE_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftimage.h
|
C++
|
gpl-3.0
| 41,578
|
/****************************************************************************
*
* ftincrem.h
*
* FreeType incremental loading (specification).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTINCREM_H_
#define FTINCREM_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* incremental
*
* @title:
* Incremental Loading
*
* @abstract:
* Custom Glyph Loading.
*
* @description:
* This section contains various functions used to perform so-called
* 'incremental' glyph loading. This is a mode where all glyphs loaded
* from a given @FT_Face are provided by the client application.
*
* Apart from that, all other tables are loaded normally from the font
* file. This mode is useful when FreeType is used within another
* engine, e.g., a PostScript Imaging Processor.
*
* To enable this mode, you must use @FT_Open_Face, passing an
* @FT_Parameter with the @FT_PARAM_TAG_INCREMENTAL tag and an
* @FT_Incremental_Interface value. See the comments for
* @FT_Incremental_InterfaceRec for an example.
*
*/
/**************************************************************************
*
* @type:
* FT_Incremental
*
* @description:
* An opaque type describing a user-provided object used to implement
* 'incremental' glyph loading within FreeType. This is used to support
* embedded fonts in certain environments (e.g., PostScript
* interpreters), where the glyph data isn't in the font file, or must be
* overridden by different values.
*
* @note:
* It is up to client applications to create and implement
* @FT_Incremental objects, as long as they provide implementations for
* the methods @FT_Incremental_GetGlyphDataFunc,
* @FT_Incremental_FreeGlyphDataFunc and
* @FT_Incremental_GetGlyphMetricsFunc.
*
* See the description of @FT_Incremental_InterfaceRec to understand how
* to use incremental objects with FreeType.
*
*/
typedef struct FT_IncrementalRec_* FT_Incremental;
/**************************************************************************
*
* @struct:
* FT_Incremental_MetricsRec
*
* @description:
* A small structure used to contain the basic glyph metrics returned by
* the @FT_Incremental_GetGlyphMetricsFunc method.
*
* @fields:
* bearing_x ::
* Left bearing, in font units.
*
* bearing_y ::
* Top bearing, in font units.
*
* advance ::
* Horizontal component of glyph advance, in font units.
*
* advance_v ::
* Vertical component of glyph advance, in font units.
*
* @note:
* These correspond to horizontal or vertical metrics depending on the
* value of the `vertical` argument to the function
* @FT_Incremental_GetGlyphMetricsFunc.
*
*/
typedef struct FT_Incremental_MetricsRec_
{
FT_Long bearing_x;
FT_Long bearing_y;
FT_Long advance;
FT_Long advance_v; /* since 2.3.12 */
} FT_Incremental_MetricsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_Metrics
*
* @description:
* A handle to an @FT_Incremental_MetricsRec structure.
*
*/
typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics;
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphDataFunc
*
* @description:
* A function called by FreeType to access a given glyph's data bytes
* during @FT_Load_Glyph or @FT_Load_Char if incremental loading is
* enabled.
*
* Note that the format of the glyph's data bytes depends on the font
* file format. For TrueType, it must correspond to the raw bytes within
* the 'glyf' table. For PostScript formats, it must correspond to the
* **unencrypted** charstring bytes, without any `lenIV` header. It is
* undefined for any other format.
*
* @input:
* incremental ::
* Handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* @output:
* adata ::
* A structure describing the returned glyph data bytes (which will be
* accessed as a read-only byte block).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If this function returns successfully the method
* @FT_Incremental_FreeGlyphDataFunc will be called later to release the
* data bytes.
*
* Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for
* compound glyphs.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Data* adata );
/**************************************************************************
*
* @type:
* FT_Incremental_FreeGlyphDataFunc
*
* @description:
* A function used to release the glyph data bytes returned by a
* successful call to @FT_Incremental_GetGlyphDataFunc.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* data ::
* A structure describing the glyph data bytes (which will be accessed
* as a read-only byte block).
*
*/
typedef void
(*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental,
FT_Data* data );
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphMetricsFunc
*
* @description:
* A function used to retrieve the basic metrics of a given glyph index
* before accessing its data. This allows for handling font types such
* as PCL~XL Format~1, Class~2 downloaded TrueType fonts, where the glyph
* metrics (`hmtx` and `vmtx` tables) are permitted to be omitted from
* the font, and the relevant metrics included in the header of the glyph
* outline data. Importantly, this is not intended to allow custom glyph
* metrics (for example, Postscript Metrics dictionaries), because that
* conflicts with the requirements of outline hinting. Such custom
* metrics must be handled separately, by the calling application.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* vertical ::
* If true, return vertical metrics.
*
* ametrics ::
* This parameter is used for both input and output. The original
* glyph metrics, if any, in font units. If metrics are not available
* all the values must be set to zero.
*
* @output:
* ametrics ::
* The glyph metrics in font units.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphMetricsFunc)
( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Bool vertical,
FT_Incremental_MetricsRec *ametrics );
/**************************************************************************
*
* @struct:
* FT_Incremental_FuncsRec
*
* @description:
* A table of functions for accessing fonts that load data incrementally.
* Used in @FT_Incremental_InterfaceRec.
*
* @fields:
* get_glyph_data ::
* The function to get glyph data. Must not be null.
*
* free_glyph_data ::
* The function to release glyph data. Must not be null.
*
* get_glyph_metrics ::
* The function to get glyph metrics. May be null if the font does not
* require it.
*
*/
typedef struct FT_Incremental_FuncsRec_
{
FT_Incremental_GetGlyphDataFunc get_glyph_data;
FT_Incremental_FreeGlyphDataFunc free_glyph_data;
FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics;
} FT_Incremental_FuncsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_InterfaceRec
*
* @description:
* A structure to be used with @FT_Open_Face to indicate that the user
* wants to support incremental glyph loading. You should use it with
* @FT_PARAM_TAG_INCREMENTAL as in the following example:
*
* ```
* FT_Incremental_InterfaceRec inc_int;
* FT_Parameter parameter;
* FT_Open_Args open_args;
*
*
* // set up incremental descriptor
* inc_int.funcs = my_funcs;
* inc_int.object = my_object;
*
* // set up optional parameter
* parameter.tag = FT_PARAM_TAG_INCREMENTAL;
* parameter.data = &inc_int;
*
* // set up FT_Open_Args structure
* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
* open_args.pathname = my_font_pathname;
* open_args.num_params = 1;
* open_args.params = ¶meter; // we use one optional argument
*
* // open the font
* error = FT_Open_Face( library, &open_args, index, &face );
* ...
* ```
*
*/
typedef struct FT_Incremental_InterfaceRec_
{
const FT_Incremental_FuncsRec* funcs;
FT_Incremental object;
} FT_Incremental_InterfaceRec;
/**************************************************************************
*
* @type:
* FT_Incremental_Interface
*
* @description:
* A pointer to an @FT_Incremental_InterfaceRec structure.
*
*/
typedef FT_Incremental_InterfaceRec* FT_Incremental_Interface;
/* */
FT_END_HEADER
#endif /* FTINCREM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftincrem.h
|
C++
|
gpl-3.0
| 10,696
|
/****************************************************************************
*
* ftlcdfil.h
*
* FreeType API for color filtering of subpixel bitmap glyphs
* (specification).
*
* Copyright (C) 2006-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLCDFIL_H_
#define FTLCDFIL_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lcd_rendering
*
* @title:
* Subpixel Rendering
*
* @abstract:
* API to control subpixel rendering.
*
* @description:
* FreeType provides two alternative subpixel rendering technologies.
* Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
* `ftoption.h` file, this enables ClearType-style rendering.
* Otherwise, Harmony LCD rendering is enabled. These technologies are
* controlled differently and API described below, although always
* available, performs its function when appropriate method is enabled
* and does nothing otherwise.
*
* ClearType-style LCD rendering exploits the color-striped structure of
* LCD pixels, increasing the available resolution in the direction of
* the stripe (usually horizontal RGB) by a factor of~3. Using the
* subpixel coverages unfiltered can create severe color fringes
* especially when rendering thin features. Indeed, to produce
* black-on-white text, the nearby color subpixels must be dimmed
* evenly. Therefore, an equalizing 5-tap FIR filter should be applied
* to subpixel coverages regardless of pixel boundaries and should have
* these properties:
*
* 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid
* any shifts in appearance.
*
* 2. It should be color-balanced, meaning a~+ b~=~c, to reduce color
* fringes by distributing the computed coverage for one subpixel to
* all subpixels equally.
*
* 3. It should be normalized, meaning 2a~+ 2b~+ c~=~1.0 to maintain
* overall brightness.
*
* Boxy 3-tap filter {0, 1/3, 1/3, 1/3, 0} is sharper but is less
* forgiving of non-ideal gamma curves of a screen (and viewing angles),
* beveled filters are fuzzier but more tolerant.
*
* Use the @FT_Library_SetLcdFilter or @FT_Library_SetLcdFilterWeights
* API to specify a low-pass filter, which is then applied to
* subpixel-rendered bitmaps generated through @FT_Render_Glyph.
*
* Harmony LCD rendering is suitable to panels with any regular subpixel
* structure, not just monitors with 3 color striped subpixels, as long
* as the color subpixels have fixed positions relative to the pixel
* center. In this case, each color channel can be rendered separately
* after shifting the outline opposite to the subpixel shift so that the
* coverage maps are aligned. This method is immune to color fringes
* because the shifts do not change integral coverage.
*
* The subpixel geometry must be specified by xy-coordinates for each
* subpixel. By convention they may come in the RGB order: {{-1/3, 0},
* {0, 0}, {1/3, 0}} for standard RGB striped panel or {{-1/6, 1/4},
* {-1/6, -1/4}, {1/3, 0}} for a certain PenTile panel.
*
* Use the @FT_Library_SetLcdGeometry API to specify subpixel positions.
* If one follows the RGB order convention, the same order applies to the
* resulting @FT_PIXEL_MODE_LCD and @FT_PIXEL_MODE_LCD_V bitmaps. Note,
* however, that the coordinate frame for the latter must be rotated
* clockwise. Harmony with default LCD geometry is equivalent to
* ClearType with light filter.
*
* As a result of ClearType filtering or Harmony shifts, the resulting
* dimensions of LCD bitmaps can be slightly wider or taller than the
* dimensions the original outline with regard to the pixel grid.
* For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
* the left, and 2~subpixels to the right. The bitmap offset values are
* adjusted accordingly, so clients shouldn't need to modify their layout
* and glyph positioning code when enabling the filter.
*
* The ClearType and Harmony rendering is applicable to glyph bitmaps
* rendered through @FT_Render_Glyph, @FT_Load_Glyph, @FT_Load_Char, and
* @FT_Glyph_To_Bitmap, when @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V
* is specified. This API does not control @FT_Outline_Render and
* @FT_Outline_Get_Bitmap.
*
* The described algorithms can completely remove color artefacts when
* combined with gamma-corrected alpha blending in linear space. Each of
* the 3~alpha values (subpixels) must by independently used to blend one
* color channel. That is, red alpha blends the red channel of the text
* color with the red channel of the background pixel.
*/
/**************************************************************************
*
* @enum:
* FT_LcdFilter
*
* @description:
* A list of values to identify various types of LCD filters.
*
* @values:
* FT_LCD_FILTER_NONE ::
* Do not perform filtering. When used with subpixel rendering, this
* results in sometimes severe color fringes.
*
* FT_LCD_FILTER_DEFAULT ::
* This is a beveled, normalized, and color-balanced five-tap filter
* with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256th units.
*
* FT_LCD_FILTER_LIGHT ::
* this is a boxy, normalized, and color-balanced three-tap filter with
* weights of [0x00 0x55 0x56 0x55 0x00] in 1/256th units.
*
* FT_LCD_FILTER_LEGACY ::
* FT_LCD_FILTER_LEGACY1 ::
* This filter corresponds to the original libXft color filter. It
* provides high contrast output but can exhibit really bad color
* fringes if glyphs are not extremely well hinted to the pixel grid.
* This filter is only provided for comparison purposes, and might be
* disabled or stay unsupported in the future. The second value is
* provided for compatibility with FontConfig, which historically used
* different enumeration, sometimes incorrectly forwarded to FreeType.
*
* @since:
* 2.3.0 (`FT_LCD_FILTER_LEGACY1` since 2.6.2)
*/
typedef enum FT_LcdFilter_
{
FT_LCD_FILTER_NONE = 0,
FT_LCD_FILTER_DEFAULT = 1,
FT_LCD_FILTER_LIGHT = 2,
FT_LCD_FILTER_LEGACY1 = 3,
FT_LCD_FILTER_LEGACY = 16,
FT_LCD_FILTER_MAX /* do not remove */
} FT_LcdFilter;
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilter
*
* @description:
* This function is used to change filter applied to LCD decimated
* bitmaps, like the ones used when calling @FT_Render_Glyph with
* @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V.
*
* @input:
* library ::
* A handle to the target library instance.
*
* filter ::
* The filter type.
*
* You can use @FT_LCD_FILTER_NONE here to disable this feature, or
* @FT_LCD_FILTER_DEFAULT to use a default filter that should work well
* on most LCD screens.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Since 2.10.3 the LCD filtering is enabled with @FT_LCD_FILTER_DEFAULT.
* It is no longer necessary to call this function explicitly except
* to choose a different filter or disable filtering altogether with
* @FT_LCD_FILTER_NONE.
*
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilter( FT_Library library,
FT_LcdFilter filter );
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilterWeights
*
* @description:
* This function can be used to enable LCD filter with custom weights,
* instead of using presets in @FT_Library_SetLcdFilter.
*
* @input:
* library ::
* A handle to the target library instance.
*
* weights ::
* A pointer to an array; the function copies the first five bytes and
* uses them to specify the filter weights in 1/256th units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* LCD filter weights can also be set per face using @FT_Face_Properties
* with @FT_PARAM_TAG_LCD_FILTER_WEIGHTS.
*
* @since:
* 2.4.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilterWeights( FT_Library library,
unsigned char *weights );
/**************************************************************************
*
* @type:
* FT_LcdFiveTapFilter
*
* @description:
* A typedef for passing the five LCD filter weights to
* @FT_Face_Properties within an @FT_Parameter structure.
*
* @since:
* 2.8
*
*/
#define FT_LCD_FILTER_FIVE_TAPS 5
typedef FT_Byte FT_LcdFiveTapFilter[FT_LCD_FILTER_FIVE_TAPS];
/**************************************************************************
*
* @function:
* FT_Library_SetLcdGeometry
*
* @description:
* This function can be used to modify default positions of color
* subpixels, which controls Harmony LCD rendering.
*
* @input:
* library ::
* A handle to the target library instance.
*
* sub ::
* A pointer to an array of 3 vectors in 26.6 fractional pixel format;
* the function modifies the default values, see the note below.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Subpixel geometry examples:
*
* - {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color
* stripes shifted by a third of a pixel. This could be an RGB panel.
*
* - {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can
* specify a BGR panel instead, while keeping the bitmap in the same
* RGB888 format.
*
* - {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap
* stays RGB888 as a result.
*
* - {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement.
*
* This function does nothing and returns `FT_Err_Unimplemented_Feature`
* in the context of ClearType-style subpixel rendering when
* `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is defined in your build of the
* library.
*
* @since:
* 2.10.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdGeometry( FT_Library library,
FT_Vector sub[3] );
/* */
FT_END_HEADER
#endif /* FTLCDFIL_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftlcdfil.h
|
C++
|
gpl-3.0
| 11,750
|
/****************************************************************************
*
* ftlist.h
*
* Generic list support for FreeType (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file implements functions relative to list processing. Its data
* structures are defined in `freetype.h`.
*
*/
#ifndef FTLIST_H_
#define FTLIST_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* list_processing
*
* @title:
* List Processing
*
* @abstract:
* Simple management of lists.
*
* @description:
* This section contains various definitions related to list processing
* using doubly-linked nodes.
*
* @order:
* FT_List
* FT_ListNode
* FT_ListRec
* FT_ListNodeRec
*
* FT_List_Add
* FT_List_Insert
* FT_List_Find
* FT_List_Remove
* FT_List_Up
* FT_List_Iterate
* FT_List_Iterator
* FT_List_Finalize
* FT_List_Destructor
*
*/
/**************************************************************************
*
* @function:
* FT_List_Find
*
* @description:
* Find the list node for a given listed object.
*
* @input:
* list ::
* A pointer to the parent list.
* data ::
* The address of the listed object.
*
* @return:
* List node. `NULL` if it wasn't found.
*/
FT_EXPORT( FT_ListNode )
FT_List_Find( FT_List list,
void* data );
/**************************************************************************
*
* @function:
* FT_List_Add
*
* @description:
* Append an element to the end of a list.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to append.
*/
FT_EXPORT( void )
FT_List_Add( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Insert
*
* @description:
* Insert an element at the head of a list.
*
* @inout:
* list ::
* A pointer to parent list.
* node ::
* The node to insert.
*/
FT_EXPORT( void )
FT_List_Insert( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Remove
*
* @description:
* Remove a node from a list. This function doesn't check whether the
* node is in the list!
*
* @input:
* node ::
* The node to remove.
*
* @inout:
* list ::
* A pointer to the parent list.
*/
FT_EXPORT( void )
FT_List_Remove( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Up
*
* @description:
* Move a node to the head/top of a list. Used to maintain LRU lists.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to move.
*/
FT_EXPORT( void )
FT_List_Up( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @functype:
* FT_List_Iterator
*
* @description:
* An FT_List iterator function that is called during a list parse by
* @FT_List_Iterate.
*
* @input:
* node ::
* The current iteration list node.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. Can be used to point
* to the iteration's state.
*/
typedef FT_Error
(*FT_List_Iterator)( FT_ListNode node,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Iterate
*
* @description:
* Parse a list and calls a given iterator function on each element.
* Note that parsing is stopped as soon as one of the iterator calls
* returns a non-zero value.
*
* @input:
* list ::
* A handle to the list.
* iterator ::
* An iterator function, called on each node of the list.
* user ::
* A user-supplied field that is passed as the second argument to the
* iterator.
*
* @return:
* The result (a FreeType error code) of the last iterator call.
*/
FT_EXPORT( FT_Error )
FT_List_Iterate( FT_List list,
FT_List_Iterator iterator,
void* user );
/**************************************************************************
*
* @functype:
* FT_List_Destructor
*
* @description:
* An @FT_List iterator function that is called during a list
* finalization by @FT_List_Finalize to destroy all elements in a given
* list.
*
* @input:
* system ::
* The current system object.
*
* data ::
* The current object to destroy.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. It can be used to
* point to the iteration's state.
*/
typedef void
(*FT_List_Destructor)( FT_Memory memory,
void* data,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Finalize
*
* @description:
* Destroy all elements in the list as well as the list itself.
*
* @input:
* list ::
* A handle to the list.
*
* destroy ::
* A list destructor that will be applied to each element of the list.
* Set this to `NULL` if not needed.
*
* memory ::
* The current memory object that handles deallocation.
*
* user ::
* A user-supplied field that is passed as the last argument to the
* destructor.
*
* @note:
* This function expects that all nodes added by @FT_List_Add or
* @FT_List_Insert have been dynamically allocated.
*/
FT_EXPORT( void )
FT_List_Finalize( FT_List list,
FT_List_Destructor destroy,
FT_Memory memory,
void* user );
/* */
FT_END_HEADER
#endif /* FTLIST_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftlist.h
|
C++
|
gpl-3.0
| 7,100
|
/****************************************************************************
*
* ftlogging.h
*
* Additional debugging APIs.
*
* Copyright (C) 2020-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLOGGING_H_
#define FTLOGGING_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* debugging_apis
*
* @title:
* External Debugging APIs
*
* @abstract:
* Public APIs to control the `FT_DEBUG_LOGGING` macro.
*
* @description:
* This section contains the declarations of public functions that
* enables fine control of what the `FT_DEBUG_LOGGING` macro outputs.
*
*/
/**************************************************************************
*
* @function:
* FT_Trace_Set_Level
*
* @description:
* Change the levels of tracing components of FreeType at run time.
*
* @input:
* tracing_level ::
* New tracing value.
*
* @example:
* The following call makes FreeType trace everything but the 'memory'
* component.
*
* ```
* FT_Trace_Set_Level( "any:7 memory:0 );
* ```
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Level( const char* tracing_level );
/**************************************************************************
*
* @function:
* FT_Trace_Set_Default_Level
*
* @description:
* Reset tracing value of FreeType's components to the default value
* (i.e., to the value of the `FT2_DEBUG` environment value or to NULL
* if `FT2_DEBUG` is not set).
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Default_Level( void );
/**************************************************************************
*
* @functype:
* FT_Custom_Log_Handler
*
* @description:
* A function typedef that is used to handle the logging of tracing and
* debug messages on a file system.
*
* @input:
* ft_component ::
* The name of `FT_COMPONENT` from which the current debug or error
* message is produced.
*
* fmt ::
* Actual debug or tracing message.
*
* args::
* Arguments of debug or tracing messages.
*
* @since:
* 2.11
*
*/
typedef void
(*FT_Custom_Log_Handler)( const char* ft_component,
const char* fmt,
va_list args );
/**************************************************************************
*
* @function:
* FT_Set_Log_Handler
*
* @description:
* A function to set a custom log handler.
*
* @input:
* handler ::
* New logging function.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Log_Handler( FT_Custom_Log_Handler handler );
/**************************************************************************
*
* @function:
* FT_Set_Default_Log_Handler
*
* @description:
* A function to undo the effect of @FT_Set_Log_Handler, resetting the
* log handler to FreeType's built-in version.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Default_Log_Handler( void );
/* */
FT_END_HEADER
#endif /* FTLOGGING_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftlogging.h
|
C++
|
gpl-3.0
| 4,129
|
/****************************************************************************
*
* ftlzw.h
*
* LZW-compressed stream support.
*
* Copyright (C) 2004-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLZW_H_
#define FTLZW_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lzw
*
* @title:
* LZW Streams
*
* @abstract:
* Using LZW-compressed font files.
*
* @description:
* In certain builds of the library, LZW compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a LZW stream from it and
* re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of LZW-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenLZW
*
* @description:
* Open a new stream to parse LZW-compressed font files. This is mainly
* used to support the compressed `*.pcf.Z` fonts that come with XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with LZW support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenLZW( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTLZW_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftlzw.h
|
C++
|
gpl-3.0
| 2,768
|
/****************************************************************************
*
* ftmac.h
*
* Additional Mac-specific API.
*
* Copyright (C) 1996-2022 by
* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* NOTE: Include this file after `FT_FREETYPE_H` and after any
* Mac-specific headers (because this header uses Mac types such as
* 'Handle', 'FSSpec', 'FSRef', etc.)
*
*/
#ifndef FTMAC_H_
#define FTMAC_H_
FT_BEGIN_HEADER
/* gcc-3.1 and later can warn about functions tagged as deprecated */
#ifndef FT_DEPRECATED_ATTRIBUTE
#if defined( __GNUC__ ) && \
( ( __GNUC__ >= 4 ) || \
( ( __GNUC__ == 3 ) && ( __GNUC_MINOR__ >= 1 ) ) )
#define FT_DEPRECATED_ATTRIBUTE __attribute__(( deprecated ))
#else
#define FT_DEPRECATED_ATTRIBUTE
#endif
#endif
/**************************************************************************
*
* @section:
* mac_specific
*
* @title:
* Mac Specific Interface
*
* @abstract:
* Only available on the Macintosh.
*
* @description:
* The following definitions are only available if FreeType is compiled
* on a Macintosh.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Face_From_FOND
*
* @description:
* Create a new face object from a FOND resource.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* fond ::
* A FOND resource.
*
* face_index ::
* Only supported for the -1 'sanity check' special case.
*
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @example:
* This function can be used to create @FT_Face objects from fonts that
* are installed in the system as follows.
*
* ```
* fond = GetResource( 'FOND', fontName );
* error = FT_New_Face_From_FOND( library, fond, 0, &face );
* ```
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FOND( FT_Library library,
Handle fond,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font (e.g., Times New Roman Bold).
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_ATS_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_ATS_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFilePath_From_Mac_ATS_Name
*
* @description:
* Return a pathname of the disk file and face index for given font name
* that is handled by ATS framework.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* path ::
* Buffer to store pathname of the file. For passing to @FT_New_Face.
* The client must allocate this buffer before calling this function.
*
* maxPathSize ::
* Lengths of the buffer `path` that client allocated.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFilePath_From_Mac_ATS_Name( const char* fontName,
UInt8* path,
UInt32 maxPathSize,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSSpec
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSSpec to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSSpec to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSSpec is identical to @FT_New_Face except it
* accepts an FSSpec instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSSpec( FT_Library library,
const FSSpec *spec,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSRef
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSRef to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSRef to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSRef is identical to @FT_New_Face except it accepts
* an FSRef instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSRef( FT_Library library,
const FSRef *ref,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/* */
FT_END_HEADER
#endif /* FTMAC_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftmac.h
|
C++
|
gpl-3.0
| 7,771
|
/****************************************************************************
*
* ftmm.h
*
* FreeType Multiple Master font interface (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMM_H_
#define FTMM_H_
#include <freetype/t1tables.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* multiple_masters
*
* @title:
* Multiple Masters
*
* @abstract:
* How to manage Multiple Masters fonts.
*
* @description:
* The following types and functions are used to manage Multiple Master
* fonts, i.e., the selection of specific design instances by setting
* design axis coordinates.
*
* Besides Adobe MM fonts, the interface supports Apple's TrueType GX and
* OpenType variation fonts. Some of the routines only work with Adobe
* MM fonts, others will work with all three types. They are similar
* enough that a consistent interface makes sense.
*
* For Adobe MM fonts, macro @FT_IS_SFNT returns false. For GX and
* OpenType variation fonts, it returns true.
*
*/
/**************************************************************************
*
* @struct:
* FT_MM_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple Masters
* fonts.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* name ::
* The axis's name.
*
* minimum ::
* The axis's minimum design coordinate.
*
* maximum ::
* The axis's maximum design coordinate.
*/
typedef struct FT_MM_Axis_
{
FT_String* name;
FT_Long minimum;
FT_Long maximum;
} FT_MM_Axis;
/**************************************************************************
*
* @struct:
* FT_Multi_Master
*
* @description:
* A structure to model the axes and space of a Multiple Masters font.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* num_axis ::
* Number of axes. Cannot exceed~4.
*
* num_designs ::
* Number of designs; should be normally 2^num_axis even though the
* Type~1 specification strangely allows for intermediate designs to be
* present. This number cannot exceed~16.
*
* axis ::
* A table of axis descriptors.
*/
typedef struct FT_Multi_Master_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_MM_Axis axis[T1_MAX_MM_AXIS];
} FT_Multi_Master;
/**************************************************************************
*
* @struct:
* FT_Var_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple
* Masters, TrueType GX, and OpenType variation fonts.
*
* @fields:
* name ::
* The axis's name. Not always meaningful for TrueType GX or OpenType
* variation fonts.
*
* minimum ::
* The axis's minimum design coordinate.
*
* def ::
* The axis's default design coordinate. FreeType computes meaningful
* default values for Adobe MM fonts.
*
* maximum ::
* The axis's maximum design coordinate.
*
* tag ::
* The axis's tag (the equivalent to 'name' for TrueType GX and
* OpenType variation fonts). FreeType provides default values for
* Adobe MM fonts if possible.
*
* strid ::
* The axis name entry in the font's 'name' table. This is another
* (and often better) version of the 'name' field for TrueType GX or
* OpenType variation fonts. Not meaningful for Adobe MM fonts.
*
* @note:
* The fields `minimum`, `def`, and `maximum` are 16.16 fractional values
* for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the
* values are integers.
*/
typedef struct FT_Var_Axis_
{
FT_String* name;
FT_Fixed minimum;
FT_Fixed def;
FT_Fixed maximum;
FT_ULong tag;
FT_UInt strid;
} FT_Var_Axis;
/**************************************************************************
*
* @struct:
* FT_Var_Named_Style
*
* @description:
* A structure to model a named instance in a TrueType GX or OpenType
* variation font.
*
* This structure can't be used for Adobe MM fonts.
*
* @fields:
* coords ::
* The design coordinates for this instance. This is an array with one
* entry for each axis.
*
* strid ::
* The entry in 'name' table identifying this instance.
*
* psid ::
* The entry in 'name' table identifying a PostScript name for this
* instance. Value 0xFFFF indicates a missing entry.
*/
typedef struct FT_Var_Named_Style_
{
FT_Fixed* coords;
FT_UInt strid;
FT_UInt psid; /* since 2.7.1 */
} FT_Var_Named_Style;
/**************************************************************************
*
* @struct:
* FT_MM_Var
*
* @description:
* A structure to model the axes and space of an Adobe MM, TrueType GX,
* or OpenType variation font.
*
* Some fields are specific to one format and not to the others.
*
* @fields:
* num_axis ::
* The number of axes. The maximum value is~4 for Adobe MM fonts; no
* limit in TrueType GX or OpenType variation fonts.
*
* num_designs ::
* The number of designs; should be normally 2^num_axis for Adobe MM
* fonts. Not meaningful for TrueType GX or OpenType variation fonts
* (where every glyph could have a different number of designs).
*
* num_namedstyles ::
* The number of named styles; a 'named style' is a tuple of design
* coordinates that has a string ID (in the 'name' table) associated
* with it. The font can tell the user that, for example,
* [Weight=1.5,Width=1.1] is 'Bold'. Another name for 'named style' is
* 'named instance'.
*
* For Adobe Multiple Masters fonts, this value is always zero because
* the format does not support named styles.
*
* axis ::
* An axis descriptor table. TrueType GX and OpenType variation fonts
* contain slightly more data than Adobe MM fonts. Memory management
* of this pointer is done internally by FreeType.
*
* namedstyle ::
* A named style (instance) table. Only meaningful for TrueType GX and
* OpenType variation fonts. Memory management of this pointer is done
* internally by FreeType.
*/
typedef struct FT_MM_Var_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_UInt num_namedstyles;
FT_Var_Axis* axis;
FT_Var_Named_Style* namedstyle;
} FT_MM_Var;
/**************************************************************************
*
* @function:
* FT_Get_Multi_Master
*
* @description:
* Retrieve a variation descriptor of a given Adobe MM font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The Multiple Masters descriptor.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_Multi_Master( FT_Face face,
FT_Multi_Master *amaster );
/**************************************************************************
*
* @function:
* FT_Get_MM_Var
*
* @description:
* Retrieve a variation descriptor for a given font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The variation descriptor. Allocates a data structure, which the
* user must deallocate with a call to @FT_Done_MM_Var after use.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Var( FT_Face face,
FT_MM_Var* *amaster );
/**************************************************************************
*
* @function:
* FT_Done_MM_Var
*
* @description:
* Free the memory allocated by @FT_Get_MM_Var.
*
* @input:
* library ::
* A handle of the face's parent library object that was used in the
* call to @FT_Get_MM_Var to create `amaster`.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_MM_Var( FT_Library library,
FT_MM_Var *amaster );
/**************************************************************************
*
* @function:
* FT_Set_MM_Design_Coordinates
*
* @description:
* For Adobe MM fonts, choose an interpolated font design through design
* coordinates.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Design_Coordinates
*
* @description:
* Choose an interpolated font design through design coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Design_Coordinates
*
* @description:
* Get the design coordinates of the currently selected interpolated
* font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of design coordinates to retrieve. If it is larger than
* the number of axes, set the excess values to~0.
*
* @output:
* coords ::
* The design coordinates array.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_Blend_Coordinates
*
* @description:
* Choose an interpolated font design through normalized blend
* coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* The design coordinates array (each element must be between 0 and 1.0
* for Adobe MM fonts, and between -1.0 and 1.0 for TrueType GX and
* OpenType variation fonts).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_MM_Blend_Coordinates
*
* @description:
* Get the normalized blend coordinates of the currently selected
* interpolated font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of normalized blend coordinates to retrieve. If it is
* larger than the number of axes, set the excess values to~0.5 for
* Adobe MM fonts, and to~0 for TrueType GX and OpenType variation
* fonts.
*
* @output:
* coords ::
* The normalized blend coordinates array.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Set_MM_Blend_Coordinates.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Get_MM_Blend_Coordinates.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_WeightVector
*
* @description:
* For Adobe MM fonts, choose an interpolated font design by directly
* setting the weight vector.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* len ::
* The length of the weight vector array. If it is larger than the
* number of designs, the extra values are ignored. If it is less than
* the number of designs, the remaining values are set to zero.
*
* weightvector ::
* An array representing the weight vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the weight vector to~16.
*
* If `len` is zero and `weightvector` is `NULL`, the weight vector array
* is reset to the default values.
*
* The Adobe documentation also states that the values in the
* WeightVector array must total 1.0 +/-~0.001. In practice this does
* not seem to be enforced, so is not enforced here, either.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Set_MM_WeightVector( FT_Face face,
FT_UInt len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @function:
* FT_Get_MM_WeightVector
*
* @description:
* For Adobe MM fonts, retrieve the current weight vector of the font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* len ::
* A pointer to the size of the array to be filled. If the size of the
* array is less than the number of designs, `FT_Err_Invalid_Argument`
* is returned, and `len` is set to the required size (the number of
* designs). If the size of the array is greater than the number of
* designs, the remaining entries are set to~0. On successful
* completion, `len` is set to the number of designs (i.e., the number
* of values written to the array).
*
* @output:
* weightvector ::
* An array to be filled.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the WeightVector to~16.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Get_MM_WeightVector( FT_Face face,
FT_UInt* len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @enum:
* FT_VAR_AXIS_FLAG_XXX
*
* @description:
* A list of bit flags used in the return value of
* @FT_Get_Var_Axis_Flags.
*
* @values:
* FT_VAR_AXIS_FLAG_HIDDEN ::
* The variation axis should not be exposed to user interfaces.
*
* @since:
* 2.8.1
*/
#define FT_VAR_AXIS_FLAG_HIDDEN 1
/**************************************************************************
*
* @function:
* FT_Get_Var_Axis_Flags
*
* @description:
* Get the 'flags' field of an OpenType Variation Axis Record.
*
* Not meaningful for Adobe MM fonts (`*flags` is always zero).
*
* @input:
* master ::
* The variation descriptor.
*
* axis_index ::
* The index of the requested variation axis.
*
* @output:
* flags ::
* The 'flags' field. See @FT_VAR_AXIS_FLAG_XXX for possible values.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.8.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Axis_Flags( FT_MM_Var* master,
FT_UInt axis_index,
FT_UInt* flags );
/**************************************************************************
*
* @function:
* FT_Set_Named_Instance
*
* @description:
* Set or change the current named instance.
*
* @input:
* face ::
* A handle to the source face.
*
* instance_index ::
* The index of the requested instance, starting with value 1. If set
* to value 0, FreeType switches to font access without a named
* instance.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The function uses the value of `instance_index` to set bits 16-30 of
* the face's `face_index` field. It also resets any variation applied
* to the font, and the @FT_FACE_FLAG_VARIATION bit of the face's
* `face_flags` field gets reset to zero (i.e., @FT_IS_VARIATION will
* return false).
*
* For Adobe MM fonts (which don't have named instances) this function
* simply resets the current face to the default instance.
*
* @since:
* 2.9
*/
FT_EXPORT( FT_Error )
FT_Set_Named_Instance( FT_Face face,
FT_UInt instance_index );
/* */
FT_END_HEADER
#endif /* FTMM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftmm.h
|
C++
|
gpl-3.0
| 21,920
|
/****************************************************************************
*
* ftmodapi.h
*
* FreeType modules public interface (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMODAPI_H_
#define FTMODAPI_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
* @title:
* Module Management
*
* @abstract:
* How to add, upgrade, remove, and control modules from FreeType.
*
* @description:
* The definitions below are used to manage modules within FreeType.
* Internal and external modules can be added, upgraded, and removed at
* runtime. For example, an alternative renderer or proprietary font
* driver can be registered and prioritized. Additionally, some module
* properties can also be controlled.
*
* Here is a list of existing values of the `module_name` field in the
* @FT_Module_Class structure.
*
* ```
* autofitter
* bdf
* cff
* gxvalid
* otvalid
* pcf
* pfr
* psaux
* pshinter
* psnames
* raster1
* sfnt
* smooth
* truetype
* type1
* type42
* t1cid
* winfonts
* ```
*
* Note that the FreeType Cache sub-system is not a FreeType module.
*
* @order:
* FT_Module
* FT_Module_Constructor
* FT_Module_Destructor
* FT_Module_Requester
* FT_Module_Class
*
* FT_Add_Module
* FT_Get_Module
* FT_Remove_Module
* FT_Add_Default_Modules
*
* FT_FACE_DRIVER_NAME
* FT_Property_Set
* FT_Property_Get
* FT_Set_Default_Properties
*
* FT_New_Library
* FT_Done_Library
* FT_Reference_Library
*
* FT_Renderer
* FT_Renderer_Class
*
* FT_Get_Renderer
* FT_Set_Renderer
*
* FT_Set_Debug_Hook
*
*/
/* module bit flags */
#define FT_MODULE_FONT_DRIVER 1 /* this module is a font driver */
#define FT_MODULE_RENDERER 2 /* this module is a renderer */
#define FT_MODULE_HINTER 4 /* this module is a glyph hinter */
#define FT_MODULE_STYLER 8 /* this module is a styler */
#define FT_MODULE_DRIVER_SCALABLE 0x100 /* the driver supports */
/* scalable fonts */
#define FT_MODULE_DRIVER_NO_OUTLINES 0x200 /* the driver does not */
/* support vector outlines */
#define FT_MODULE_DRIVER_HAS_HINTER 0x400 /* the driver provides its */
/* own hinter */
#define FT_MODULE_DRIVER_HINTS_LIGHTLY 0x800 /* the driver's hinter */
/* produces LIGHT hints */
/* deprecated values */
#define ft_module_font_driver FT_MODULE_FONT_DRIVER
#define ft_module_renderer FT_MODULE_RENDERER
#define ft_module_hinter FT_MODULE_HINTER
#define ft_module_styler FT_MODULE_STYLER
#define ft_module_driver_scalable FT_MODULE_DRIVER_SCALABLE
#define ft_module_driver_no_outlines FT_MODULE_DRIVER_NO_OUTLINES
#define ft_module_driver_has_hinter FT_MODULE_DRIVER_HAS_HINTER
#define ft_module_driver_hints_lightly FT_MODULE_DRIVER_HINTS_LIGHTLY
typedef FT_Pointer FT_Module_Interface;
/**************************************************************************
*
* @functype:
* FT_Module_Constructor
*
* @description:
* A function used to initialize (not create) a new module object.
*
* @input:
* module ::
* The module to initialize.
*/
typedef FT_Error
(*FT_Module_Constructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Destructor
*
* @description:
* A function used to finalize (not destroy) a given module object.
*
* @input:
* module ::
* The module to finalize.
*/
typedef void
(*FT_Module_Destructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Requester
*
* @description:
* A function used to query a given module for a specific interface.
*
* @input:
* module ::
* The module to be searched.
*
* name ::
* The name of the interface in the module.
*/
typedef FT_Module_Interface
(*FT_Module_Requester)( FT_Module module,
const char* name );
/**************************************************************************
*
* @struct:
* FT_Module_Class
*
* @description:
* The module class descriptor. While being a public structure necessary
* for FreeType's module bookkeeping, most of the fields are essentially
* internal, not to be used directly by an application.
*
* @fields:
* module_flags ::
* Bit flags describing the module.
*
* module_size ::
* The size of one module object/instance in bytes.
*
* module_name ::
* The name of the module.
*
* module_version ::
* The version, as a 16.16 fixed number (major.minor).
*
* module_requires ::
* The version of FreeType this module requires, as a 16.16 fixed
* number (major.minor). Starts at version 2.0, i.e., 0x20000.
*
* module_interface ::
* A typeless pointer to a structure (which varies between different
* modules) that holds the module's interface functions. This is
* essentially what `get_interface` returns.
*
* module_init ::
* The initializing function.
*
* module_done ::
* The finalizing function.
*
* get_interface ::
* The interface requesting function.
*/
typedef struct FT_Module_Class_
{
FT_ULong module_flags;
FT_Long module_size;
const FT_String* module_name;
FT_Fixed module_version;
FT_Fixed module_requires;
const void* module_interface;
FT_Module_Constructor module_init;
FT_Module_Destructor module_done;
FT_Module_Requester get_interface;
} FT_Module_Class;
/**************************************************************************
*
* @function:
* FT_Add_Module
*
* @description:
* Add a new module to a given library instance.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* clazz ::
* A pointer to class descriptor for the module.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*/
FT_EXPORT( FT_Error )
FT_Add_Module( FT_Library library,
const FT_Module_Class* clazz );
/**************************************************************************
*
* @function:
* FT_Get_Module
*
* @description:
* Find a module by its name.
*
* @input:
* library ::
* A handle to the library object.
*
* module_name ::
* The module's name (as an ASCII string).
*
* @return:
* A module handle. 0~if none was found.
*
* @note:
* FreeType's internal modules aren't documented very well, and you
* should look up the source code for details.
*/
FT_EXPORT( FT_Module )
FT_Get_Module( FT_Library library,
const char* module_name );
/**************************************************************************
*
* @function:
* FT_Remove_Module
*
* @description:
* Remove a given module from a library instance.
*
* @inout:
* library ::
* A handle to a library object.
*
* @input:
* module ::
* A handle to a module object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The module object is destroyed by the function in case of success.
*/
FT_EXPORT( FT_Error )
FT_Remove_Module( FT_Library library,
FT_Module module );
/**************************************************************************
*
* @macro:
* FT_FACE_DRIVER_NAME
*
* @description:
* A macro that retrieves the name of a font driver from a face object.
*
* @note:
* The font driver name is a valid `module_name` for @FT_Property_Set
* and @FT_Property_Get. This is not the same as @FT_Get_Font_Format.
*
* @since:
* 2.11
*
*/
#define FT_FACE_DRIVER_NAME( face ) \
( ( *FT_REINTERPRET_CAST( FT_Module_Class**, \
( face )->driver ) )->module_name )
/**************************************************************************
*
* @function:
* FT_Property_Set
*
* @description:
* Set a property for a given module.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* Note that only a few modules have properties.
*
* value ::
* A generic pointer to a variable or structure that gives the new
* value of the property. The exact definition of `value` is
* dependent on the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example sets property 'bar' (a simple integer) in
* module 'foo' to value~1.
*
* ```
* FT_UInt bar;
*
*
* bar = 1;
* FT_Property_Set( library, "foo", "bar", &bar );
* ```
*
* Note that the FreeType Cache sub-system doesn't recognize module
* property changes. To avoid glyph lookup confusion within the cache
* you should call @FTC_Manager_Reset to completely flush the cache if a
* module property gets changed after @FTC_Manager_New has been called.
*
* It is not possible to set properties of the FreeType Cache sub-system
* itself with FT_Property_Set; use @FTC_Property_Set instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Set( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
const void* value );
/**************************************************************************
*
* @function:
* FT_Property_Get
*
* @description:
* Get a module's property value.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* @inout:
* value ::
* A generic pointer to a variable or structure that gives the value
* of the property. The exact definition of `value` is dependent on
* the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example gets property 'baz' (a range) in module 'foo'.
*
* ```
* typedef range_
* {
* FT_Int32 min;
* FT_Int32 max;
*
* } range;
*
* range baz;
*
*
* FT_Property_Get( library, "foo", "baz", &baz );
* ```
*
* It is not possible to retrieve properties of the FreeType Cache
* sub-system with FT_Property_Get; use @FTC_Property_Get instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Get( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
void* value );
/**************************************************************************
*
* @function:
* FT_Set_Default_Properties
*
* @description:
* If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
* set, this function reads the `FREETYPE_PROPERTIES` environment
* variable to control driver properties. See section @properties for
* more.
*
* If the compilation option is not set, this function does nothing.
*
* `FREETYPE_PROPERTIES` has the following syntax form (broken here into
* multiple lines for better readability).
*
* ```
* <optional whitespace>
* <module-name1> ':'
* <property-name1> '=' <property-value1>
* <whitespace>
* <module-name2> ':'
* <property-name2> '=' <property-value2>
* ...
* ```
*
* Example:
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
* cff:no-stem-darkening=0
* ```
*
* @inout:
* library ::
* A handle to a new library object.
*
* @since:
* 2.8
*/
FT_EXPORT( void )
FT_Set_Default_Properties( FT_Library library );
/**************************************************************************
*
* @function:
* FT_Reference_Library
*
* @description:
* A counter gets initialized to~1 at the time an @FT_Library structure
* is created. This function increments the counter. @FT_Done_Library
* then only destroys a library if the counter is~1, otherwise it simply
* decrements the counter.
*
* This function helps in managing life-cycles of structures that
* reference @FT_Library objects.
*
* @input:
* library ::
* A handle to a target library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.4.2
*/
FT_EXPORT( FT_Error )
FT_Reference_Library( FT_Library library );
/**************************************************************************
*
* @function:
* FT_New_Library
*
* @description:
* This function is used to create a new FreeType library instance from a
* given memory object. It is thus possible to use libraries with
* distinct memory allocators within the same program. Note, however,
* that the used @FT_Memory structure is expected to remain valid for the
* life of the @FT_Library object.
*
* Normally, you would call this function (followed by a call to
* @FT_Add_Default_Modules or a series of calls to @FT_Add_Module, and a
* call to @FT_Set_Default_Properties) instead of @FT_Init_FreeType to
* initialize the FreeType library.
*
* Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a library
* instance.
*
* @input:
* memory ::
* A handle to the original memory object.
*
* @output:
* alibrary ::
* A pointer to handle of a new library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_New_Library( FT_Memory memory,
FT_Library *alibrary );
/**************************************************************************
*
* @function:
* FT_Done_Library
*
* @description:
* Discard a given library object. This closes all drivers and discards
* all resource objects.
*
* @input:
* library ::
* A handle to the target library.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_Done_Library( FT_Library library );
/**************************************************************************
*
* @functype:
* FT_DebugHook_Func
*
* @description:
* A drop-in replacement (or rather a wrapper) for the bytecode or
* charstring interpreter's main loop function.
*
* Its job is essentially
*
* - to activate debug mode to enforce single-stepping,
*
* - to call the main loop function to interpret the next opcode, and
*
* - to show the changed context to the user.
*
* An example for such a main loop function is `TT_RunIns` (declared in
* FreeType's internal header file `src/truetype/ttinterp.h`).
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of a drop-in replacement.
*
* @inout:
* arg ::
* A typeless pointer, to be cast to the main loop function's data
* structure (which depends on the font module). For TrueType fonts
* it is bytecode interpreter's execution context, `TT_ExecContext`,
* which is declared in FreeType's internal header file `tttypes.h`.
*/
typedef FT_Error
(*FT_DebugHook_Func)( void* arg );
/**************************************************************************
*
* @enum:
* FT_DEBUG_HOOK_XXX
*
* @description:
* A list of named debug hook indices.
*
* @values:
* FT_DEBUG_HOOK_TRUETYPE::
* This hook index identifies the TrueType bytecode debugger.
*/
#define FT_DEBUG_HOOK_TRUETYPE 0
/**************************************************************************
*
* @function:
* FT_Set_Debug_Hook
*
* @description:
* Set a debug hook function for debugging the interpreter of a font
* format.
*
* While this is a public API function, an application needs access to
* FreeType's internal header files to do something useful.
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of its usage.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* hook_index ::
* The index of the debug hook. You should use defined enumeration
* macros like @FT_DEBUG_HOOK_TRUETYPE.
*
* debug_hook ::
* The function used to debug the interpreter.
*
* @note:
* Currently, four debug hook slots are available, but only one (for the
* TrueType interpreter) is defined.
*/
FT_EXPORT( void )
FT_Set_Debug_Hook( FT_Library library,
FT_UInt hook_index,
FT_DebugHook_Func debug_hook );
/**************************************************************************
*
* @function:
* FT_Add_Default_Modules
*
* @description:
* Add the set of default drivers to a given library object. This is
* only useful when you create a library object with @FT_New_Library
* (usually to plug a custom memory manager).
*
* @inout:
* library ::
* A handle to a new library object.
*/
FT_EXPORT( void )
FT_Add_Default_Modules( FT_Library library );
/**************************************************************************
*
* @section:
* truetype_engine
*
* @title:
* The TrueType Engine
*
* @abstract:
* TrueType bytecode support.
*
* @description:
* This section contains a function used to query the level of TrueType
* bytecode support compiled in this version of the library.
*
*/
/**************************************************************************
*
* @enum:
* FT_TrueTypeEngineType
*
* @description:
* A list of values describing which kind of TrueType bytecode engine is
* implemented in a given FT_Library instance. It is used by the
* @FT_Get_TrueType_Engine_Type function.
*
* @values:
* FT_TRUETYPE_ENGINE_TYPE_NONE ::
* The library doesn't implement any kind of bytecode interpreter.
*
* FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
* Deprecated and removed.
*
* FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
* The library implements a bytecode interpreter that covers the full
* instruction set of the TrueType virtual machine (this was governed
* by patents until May 2010, hence the name).
*
* @since:
* 2.2
*
*/
typedef enum FT_TrueTypeEngineType_
{
FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
FT_TRUETYPE_ENGINE_TYPE_PATENTED
} FT_TrueTypeEngineType;
/**************************************************************************
*
* @function:
* FT_Get_TrueType_Engine_Type
*
* @description:
* Return an @FT_TrueTypeEngineType value to indicate which level of the
* TrueType virtual machine a given library instance supports.
*
* @input:
* library ::
* A library instance.
*
* @return:
* A value indicating which level is supported.
*
* @since:
* 2.2
*
*/
FT_EXPORT( FT_TrueTypeEngineType )
FT_Get_TrueType_Engine_Type( FT_Library library );
/* */
FT_END_HEADER
#endif /* FTMODAPI_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftmodapi.h
|
C++
|
gpl-3.0
| 22,544
|
/****************************************************************************
*
* ftmoderr.h
*
* FreeType module error offsets (specification).
*
* Copyright (C) 2001-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file is used to define the FreeType module error codes.
*
* If the macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` in `ftoption.h` is
* set, the lower byte of an error value identifies the error code as
* usual. In addition, the higher byte identifies the module. For
* example, the error `FT_Err_Invalid_File_Format` has value 0x0003, the
* error `TT_Err_Invalid_File_Format` has value 0x1303, the error
* `T1_Err_Invalid_File_Format` has value 0x1403, etc.
*
* Note that `FT_Err_Ok`, `TT_Err_Ok`, etc. are always equal to zero,
* including the high byte.
*
* If `FT_CONFIG_OPTION_USE_MODULE_ERRORS` isn't set, the higher byte of an
* error value is set to zero.
*
* To hide the various `XXX_Err_` prefixes in the source code, FreeType
* provides some macros in `fttypes.h`.
*
* FT_ERR( err )
*
* Add current error module prefix (as defined with the `FT_ERR_PREFIX`
* macro) to `err`. For example, in the BDF module the line
*
* ```
* error = FT_ERR( Invalid_Outline );
* ```
*
* expands to
*
* ```
* error = BDF_Err_Invalid_Outline;
* ```
*
* For simplicity, you can always use `FT_Err_Ok` directly instead of
* `FT_ERR( Ok )`.
*
* FT_ERR_EQ( errcode, err )
* FT_ERR_NEQ( errcode, err )
*
* Compare error code `errcode` with the error `err` for equality and
* inequality, respectively. Example:
*
* ```
* if ( FT_ERR_EQ( error, Invalid_Outline ) )
* ...
* ```
*
* Using this macro you don't have to think about error prefixes. Of
* course, if module errors are not active, the above example is the
* same as
*
* ```
* if ( error == FT_Err_Invalid_Outline )
* ...
* ```
*
* FT_ERROR_BASE( errcode )
* FT_ERROR_MODULE( errcode )
*
* Get base error and module error code, respectively.
*
* It can also be used to create a module error message table easily with
* something like
*
* ```
* #undef FTMODERR_H_
* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s },
* #define FT_MODERR_START_LIST {
* #define FT_MODERR_END_LIST { 0, 0 } };
*
* const struct
* {
* int mod_err_offset;
* const char* mod_err_msg
* } ft_mod_errors[] =
*
* #include <freetype/ftmoderr.h>
* ```
*
*/
#ifndef FTMODERR_H_
#define FTMODERR_H_
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
#ifndef FT_MODERRDEF
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v,
#else
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0,
#endif
#define FT_MODERR_START_LIST enum {
#define FT_MODERR_END_LIST FT_Mod_Err_Max };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_MODERRDEF */
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** LIST MODULE ERROR BASES *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_MODERR_START_LIST
FT_MODERR_START_LIST
#endif
FT_MODERRDEF( Base, 0x000, "base module" )
FT_MODERRDEF( Autofit, 0x100, "autofitter module" )
FT_MODERRDEF( BDF, 0x200, "BDF module" )
FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" )
FT_MODERRDEF( Cache, 0x400, "cache module" )
FT_MODERRDEF( CFF, 0x500, "CFF module" )
FT_MODERRDEF( CID, 0x600, "CID module" )
FT_MODERRDEF( Gzip, 0x700, "Gzip module" )
FT_MODERRDEF( LZW, 0x800, "LZW module" )
FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" )
FT_MODERRDEF( PCF, 0xA00, "PCF module" )
FT_MODERRDEF( PFR, 0xB00, "PFR module" )
FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" )
FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" )
FT_MODERRDEF( PSnames, 0xE00, "PS names module" )
FT_MODERRDEF( Raster, 0xF00, "raster module" )
FT_MODERRDEF( SFNT, 0x1000, "SFNT module" )
FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" )
FT_MODERRDEF( TrueType, 0x1200, "TrueType module" )
FT_MODERRDEF( Type1, 0x1300, "Type 1 module" )
FT_MODERRDEF( Type42, 0x1400, "Type 42 module" )
FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" )
FT_MODERRDEF( Sdf, 0x1700, "Signed distance field raster module" )
#ifdef FT_MODERR_END_LIST
FT_MODERR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_MODERR_START_LIST
#undef FT_MODERR_END_LIST
#undef FT_MODERRDEF
#undef FT_NEED_EXTERN_C
#endif /* FTMODERR_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftmoderr.h
|
C++
|
gpl-3.0
| 6,675
|
/****************************************************************************
*
* ftotval.h
*
* FreeType API for validating OpenType tables (specification).
*
* Copyright (C) 2004-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
*
* Warning: This module might be moved to a different library in the
* future to avoid a tight dependency between FreeType and the
* OpenType specification.
*
*
*/
#ifndef FTOTVAL_H_
#define FTOTVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* ot_validation
*
* @title:
* OpenType Validation
*
* @abstract:
* An API to validate OpenType tables.
*
* @description:
* This section contains the declaration of functions to validate some
* OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
* @order:
* FT_OpenType_Validate
* FT_OpenType_Free
*
* FT_VALIDATE_OTXXX
*
*/
/**************************************************************************
*
* @enum:
* FT_VALIDATE_OTXXX
*
* @description:
* A list of bit-field constants used with @FT_OpenType_Validate to
* indicate which OpenType tables should be validated.
*
* @values:
* FT_VALIDATE_BASE ::
* Validate BASE table.
*
* FT_VALIDATE_GDEF ::
* Validate GDEF table.
*
* FT_VALIDATE_GPOS ::
* Validate GPOS table.
*
* FT_VALIDATE_GSUB ::
* Validate GSUB table.
*
* FT_VALIDATE_JSTF ::
* Validate JSTF table.
*
* FT_VALIDATE_MATH ::
* Validate MATH table.
*
* FT_VALIDATE_OT ::
* Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
*/
#define FT_VALIDATE_BASE 0x0100
#define FT_VALIDATE_GDEF 0x0200
#define FT_VALIDATE_GPOS 0x0400
#define FT_VALIDATE_GSUB 0x0800
#define FT_VALIDATE_JSTF 0x1000
#define FT_VALIDATE_MATH 0x2000
#define FT_VALIDATE_OT ( FT_VALIDATE_BASE | \
FT_VALIDATE_GDEF | \
FT_VALIDATE_GPOS | \
FT_VALIDATE_GSUB | \
FT_VALIDATE_JSTF | \
FT_VALIDATE_MATH )
/**************************************************************************
*
* @function:
* FT_OpenType_Validate
*
* @description:
* Validate various OpenType tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_OTXXX for possible values.
*
* @output:
* BASE_table ::
* A pointer to the BASE table.
*
* GDEF_table ::
* A pointer to the GDEF table.
*
* GPOS_table ::
* A pointer to the GPOS table.
*
* GSUB_table ::
* A pointer to the GSUB table.
*
* JSTF_table ::
* A pointer to the JSTF table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with OpenType fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the five tables with
* @FT_OpenType_Free. A `NULL` value indicates that the table either
* doesn't exist in the font, or the application hasn't asked for
* validation.
*/
FT_EXPORT( FT_Error )
FT_OpenType_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *BASE_table,
FT_Bytes *GDEF_table,
FT_Bytes *GPOS_table,
FT_Bytes *GSUB_table,
FT_Bytes *JSTF_table );
/**************************************************************************
*
* @function:
* FT_OpenType_Free
*
* @description:
* Free the buffer allocated by OpenType validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_OpenType_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_OpenType_Validate only.
*/
FT_EXPORT( void )
FT_OpenType_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTOTVAL_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftotval.h
|
C++
|
gpl-3.0
| 5,346
|
/****************************************************************************
*
* ftoutln.h
*
* Support for the FT_Outline type used to store glyph shapes of
* most scalable font formats (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTOUTLN_H_
#define FTOUTLN_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
* @title:
* Outline Processing
*
* @abstract:
* Functions to create, transform, and render vectorial glyph images.
*
* @description:
* This section contains routines used to create and destroy scalable
* glyph images known as 'outlines'. These can also be measured,
* transformed, and converted into bitmaps and pixmaps.
*
* @order:
* FT_Outline
* FT_Outline_New
* FT_Outline_Done
* FT_Outline_Copy
* FT_Outline_Translate
* FT_Outline_Transform
* FT_Outline_Embolden
* FT_Outline_EmboldenXY
* FT_Outline_Reverse
* FT_Outline_Check
*
* FT_Outline_Get_CBox
* FT_Outline_Get_BBox
*
* FT_Outline_Get_Bitmap
* FT_Outline_Render
* FT_Outline_Decompose
* FT_Outline_Funcs
* FT_Outline_MoveToFunc
* FT_Outline_LineToFunc
* FT_Outline_ConicToFunc
* FT_Outline_CubicToFunc
*
* FT_Orientation
* FT_Outline_Get_Orientation
*
* FT_OUTLINE_XXX
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Decompose
*
* @description:
* Walk over an outline's structure to decompose it into individual
* segments and Bezier arcs. This function also emits 'move to'
* operations to indicate the start of new contours in the outline.
*
* @input:
* outline ::
* A pointer to the source target.
*
* func_interface ::
* A table of 'emitters', i.e., function pointers called during
* decomposition to indicate path operations.
*
* @inout:
* user ::
* A typeless pointer that is passed to each emitter during the
* decomposition. It can be used to store the state during the
* decomposition.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Degenerate contours, segments, and Bezier arcs may be reported. In
* most cases, it is best to filter these out before using the outline
* for stroking or other path modification purposes (which may cause
* degenerate segments to become non-degenrate and visible, like when
* stroke caps are used or the path is otherwise outset). Some glyph
* outlines may contain deliberate degenerate single points for mark
* attachement.
*
* Similarly, the function returns success for an empty outline also
* (doing nothing, this is, not calling any emitter); if necessary, you
* should filter this out, too.
*/
FT_EXPORT( FT_Error )
FT_Outline_Decompose( FT_Outline* outline,
const FT_Outline_Funcs* func_interface,
void* user );
/**************************************************************************
*
* @function:
* FT_Outline_New
*
* @description:
* Create a new outline of a given size.
*
* @input:
* library ::
* A handle to the library object from where the outline is allocated.
* Note however that the new outline will **not** necessarily be
* **freed**, when destroying the library, by @FT_Done_FreeType.
*
* numPoints ::
* The maximum number of points within the outline. Must be smaller
* than or equal to 0xFFFF (65535).
*
* numContours ::
* The maximum number of contours within the outline. This value must
* be in the range 0 to `numPoints`.
*
* @output:
* anoutline ::
* A handle to the new outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The reason why this function takes a `library` parameter is simply to
* use the library's memory allocator.
*/
FT_EXPORT( FT_Error )
FT_Outline_New( FT_Library library,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline *anoutline );
/**************************************************************************
*
* @function:
* FT_Outline_Done
*
* @description:
* Destroy an outline created with @FT_Outline_New.
*
* @input:
* library ::
* A handle of the library object used to allocate the outline.
*
* outline ::
* A pointer to the outline object to be discarded.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the outline's 'owner' field is not set, only the outline descriptor
* will be released.
*/
FT_EXPORT( FT_Error )
FT_Outline_Done( FT_Library library,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Check
*
* @description:
* Check the contents of an outline descriptor.
*
* @input:
* outline ::
* A handle to a source outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An empty outline, or an outline with a single point only is also
* valid.
*/
FT_EXPORT( FT_Error )
FT_Outline_Check( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_CBox
*
* @description:
* Return an outline's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* outline ::
* A pointer to the source outline descriptor.
*
* @output:
* acbox ::
* The outline's control box.
*
* @note:
* See @FT_Glyph_Get_CBox for a discussion of tricky fonts.
*/
FT_EXPORT( void )
FT_Outline_Get_CBox( const FT_Outline* outline,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Outline_Translate
*
* @description:
* Apply a simple translation to the points of an outline.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* xOffset ::
* The horizontal offset.
*
* yOffset ::
* The vertical offset.
*/
FT_EXPORT( void )
FT_Outline_Translate( const FT_Outline* outline,
FT_Pos xOffset,
FT_Pos yOffset );
/**************************************************************************
*
* @function:
* FT_Outline_Copy
*
* @description:
* Copy an outline into another one. Both objects must have the same
* sizes (number of points & number of contours) when this function is
* called.
*
* @input:
* source ::
* A handle to the source outline.
*
* @output:
* target ::
* A handle to the target outline.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Outline_Copy( const FT_Outline* source,
FT_Outline *target );
/**************************************************************************
*
* @function:
* FT_Outline_Transform
*
* @description:
* Apply a simple 2x2 matrix to all of an outline's points. Useful for
* applying rotations, slanting, flipping, etc.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* matrix ::
* A pointer to the transformation matrix.
*
* @note:
* You can use @FT_Outline_Translate if you need to translate the
* outline's points.
*/
FT_EXPORT( void )
FT_Outline_Transform( const FT_Outline* outline,
const FT_Matrix* matrix );
/**************************************************************************
*
* @function:
* FT_Outline_Embolden
*
* @description:
* Embolden an outline. The new outline will be at most 4~times
* `strength` pixels wider and higher. You may think of the left and
* bottom borders as unchanged.
*
* Negative `strength` values to reduce the outline thickness are
* possible also.
*
* @inout:
* outline ::
* A handle to the target outline.
*
* @input:
* strength ::
* How strong the glyph is emboldened. Expressed in 26.6 pixel format.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The used algorithm to increase or decrease the thickness of the glyph
* doesn't change the number of points; this means that certain
* situations like acute angles or intersections are sometimes handled
* incorrectly.
*
* If you need 'better' metrics values you should call
* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox.
*
* To get meaningful results, font scaling values must be set with
* functions like @FT_Set_Char_Size before calling FT_Render_Glyph.
*
* @example:
* ```
* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
*
* if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
* FT_Outline_Embolden( &face->glyph->outline, strength );
* ```
*
*/
FT_EXPORT( FT_Error )
FT_Outline_Embolden( FT_Outline* outline,
FT_Pos strength );
/**************************************************************************
*
* @function:
* FT_Outline_EmboldenXY
*
* @description:
* Embolden an outline. The new outline will be `xstrength` pixels wider
* and `ystrength` pixels higher. Otherwise, it is similar to
* @FT_Outline_Embolden, which uses the same strength in both directions.
*
* @since:
* 2.4.10
*/
FT_EXPORT( FT_Error )
FT_Outline_EmboldenXY( FT_Outline* outline,
FT_Pos xstrength,
FT_Pos ystrength );
/**************************************************************************
*
* @function:
* FT_Outline_Reverse
*
* @description:
* Reverse the drawing direction of an outline. This is used to ensure
* consistent fill conventions for mirrored glyphs.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @note:
* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in the
* outline's `flags` field.
*
* It shouldn't be used by a normal client application, unless it knows
* what it is doing.
*/
FT_EXPORT( void )
FT_Outline_Reverse( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_Bitmap
*
* @description:
* Render an outline within a bitmap. The outline's image is simply
* OR-ed to the target bitmap.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* abitmap ::
* A pointer to the target bitmap descriptor.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does **not create** the bitmap, it only renders an
* outline image within the one you pass to it! Consequently, the
* various fields in `abitmap` should be set accordingly.
*
* It will use the raster corresponding to the default glyph format.
*
* The value of the `num_grays` field in `abitmap` is ignored. If you
* select the gray-level rasterizer, and you want less than 256 gray
* levels, you have to use @FT_Outline_Render directly.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_Bitmap( FT_Library library,
FT_Outline* outline,
const FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Outline_Render
*
* @description:
* Render an outline within a bitmap using the current scan-convert.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* params ::
* A pointer to an @FT_Raster_Params structure used to describe the
* rendering operation.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This advanced function uses @FT_Raster_Params as an argument.
* The field `params.source` will be set to `outline` before the scan
* converter is called, which means that the value you give to it is
* actually ignored. Either `params.target` must point to preallocated
* bitmap, or @FT_RASTER_FLAG_DIRECT must be set in `params.flags`
* allowing FreeType rasterizer to be used for direct composition,
* translucency, etc. See @FT_Raster_Params for more details.
*/
FT_EXPORT( FT_Error )
FT_Outline_Render( FT_Library library,
FT_Outline* outline,
FT_Raster_Params* params );
/**************************************************************************
*
* @enum:
* FT_Orientation
*
* @description:
* A list of values used to describe an outline's contour orientation.
*
* The TrueType and PostScript specifications use different conventions
* to determine whether outline contours should be filled or unfilled.
*
* @values:
* FT_ORIENTATION_TRUETYPE ::
* According to the TrueType specification, clockwise contours must be
* filled, and counter-clockwise ones must be unfilled.
*
* FT_ORIENTATION_POSTSCRIPT ::
* According to the PostScript specification, counter-clockwise
* contours must be filled, and clockwise ones must be unfilled.
*
* FT_ORIENTATION_FILL_RIGHT ::
* This is identical to @FT_ORIENTATION_TRUETYPE, but is used to
* remember that in TrueType, everything that is to the right of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_FILL_LEFT ::
* This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to
* remember that in PostScript, everything that is to the left of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_NONE ::
* The orientation cannot be determined. That is, different parts of
* the glyph have different orientation.
*
*/
typedef enum FT_Orientation_
{
FT_ORIENTATION_TRUETYPE = 0,
FT_ORIENTATION_POSTSCRIPT = 1,
FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE,
FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT,
FT_ORIENTATION_NONE
} FT_Orientation;
/**************************************************************************
*
* @function:
* FT_Outline_Get_Orientation
*
* @description:
* This function analyzes a glyph outline and tries to compute its fill
* orientation (see @FT_Orientation). This is done by integrating the
* total area covered by the outline. The positive integral corresponds
* to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT is
* returned. The negative integral corresponds to the counter-clockwise
* orientation and @FT_ORIENTATION_TRUETYPE is returned.
*
* Note that this will return @FT_ORIENTATION_TRUETYPE for empty
* outlines.
*
* @input:
* outline ::
* A handle to the source outline.
*
* @return:
* The orientation.
*
*/
FT_EXPORT( FT_Orientation )
FT_Outline_Get_Orientation( FT_Outline* outline );
/* */
FT_END_HEADER
#endif /* FTOUTLN_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftoutln.h
|
C++
|
gpl-3.0
| 17,402
|
/****************************************************************************
*
* ftparams.h
*
* FreeType API for possible FT_Parameter tags (specification only).
*
* Copyright (C) 2017-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPARAMS_H_
#define FTPARAMS_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* parameter_tags
*
* @title:
* Parameter Tags
*
* @abstract:
* Macros for driver property and font loading parameter tags.
*
* @description:
* This section contains macros for the @FT_Parameter structure that are
* used with various functions to activate some special functionality or
* different behaviour of various components of FreeType.
*
*/
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* family names in the 'name' table (introduced in OpenType version 1.4).
* Use this for backward compatibility with legacy systems that have a
* four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* subfamily names in the 'name' table (introduced in OpenType version
* 1.4). Use this for backward compatibility with legacy systems that
* have a four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 's' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_INCREMENTAL
*
* @description:
* An @FT_Parameter tag to be used with @FT_Open_Face to indicate
* incremental glyph loading.
*
*/
#define FT_PARAM_TAG_INCREMENTAL \
FT_MAKE_TAG( 'i', 'n', 'c', 'r' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_SBIX
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore an 'sbix' table
* while loading a font. Use this if @FT_FACE_FLAG_SBIX is set and you
* want to access the outline glyphs in the font.
*
*/
#define FT_PARAM_TAG_IGNORE_SBIX \
FT_MAKE_TAG( 'i', 's', 'b', 'x' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_LCD_FILTER_WEIGHTS
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding argument specifies the five LCD filter weights for a
* given face (if using @FT_LOAD_TARGET_LCD, for example), overriding the
* global default values or the values set up with
* @FT_Library_SetLcdFilterWeights.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \
FT_MAKE_TAG( 'l', 'c', 'd', 'f' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_RANDOM_SEED
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding 32bit signed integer argument overrides the font
* driver's random seed value with a face-specific one; see @random-seed.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_RANDOM_SEED \
FT_MAKE_TAG( 's', 'e', 'e', 'd' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_STEM_DARKENING
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding Boolean argument specifies whether to apply stem
* darkening, overriding the global default values or the values set up
* with @FT_Property_Set (see @no-stem-darkening).
*
* This is a passive setting that only takes effect if the font driver or
* autohinter honors it, which the CFF, Type~1, and CID drivers always
* do, but the autohinter only in 'light' hinting mode (as of version
* 2.9).
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_STEM_DARKENING \
FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_UNPATENTED_HINTING
*
* @description:
* Deprecated, no effect.
*
* Previously: A constant used as the tag of an @FT_Parameter structure
* to indicate that unpatented methods only should be used by the
* TrueType bytecode interpreter for a typeface opened by @FT_Open_Face.
*
*/
#define FT_PARAM_TAG_UNPATENTED_HINTING \
FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
/* */
FT_END_HEADER
#endif /* FTPARAMS_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftparams.h
|
C++
|
gpl-3.0
| 6,041
|
/****************************************************************************
*
* ftpfr.h
*
* FreeType API for accessing PFR-specific data (specification only).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPFR_H_
#define FTPFR_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* pfr_fonts
*
* @title:
* PFR Fonts
*
* @abstract:
* PFR/TrueDoc-specific API.
*
* @description:
* This section contains the declaration of PFR-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_PFR_Metrics
*
* @description:
* Return the outline and metrics resolutions of a given PFR face.
*
* @input:
* face ::
* Handle to the input face. It can be a non-PFR face.
*
* @output:
* aoutline_resolution ::
* Outline resolution. This is equivalent to `face->units_per_EM` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_resolution ::
* Metrics resolution. This is equivalent to `outline_resolution` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_x_scale ::
* A 16.16 fixed-point number used to scale distance expressed in
* metrics units to device subpixels. This is equivalent to
* `face->size->x_scale`, but for metrics only. Optional (parameter
* can be `NULL`).
*
* ametrics_y_scale ::
* Same as `ametrics_x_scale` but for the vertical direction.
* optional (parameter can be `NULL`).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the input face is not a PFR, this function will return an error.
* However, in all cases, it will return valid values.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Metrics( FT_Face face,
FT_UInt *aoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed *ametrics_x_scale,
FT_Fixed *ametrics_y_scale );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Kerning
*
* @description:
* Return the kerning pair corresponding to two glyphs in a PFR face.
* The distance is expressed in metrics units, unlike the result of
* @FT_Get_Kerning.
*
* @input:
* face ::
* A handle to the input face.
*
* left ::
* Index of the left glyph.
*
* right ::
* Index of the right glyph.
*
* @output:
* avector ::
* A kerning vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function always return distances in original PFR metrics units.
* This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED mode,
* which always returns distances converted to outline units.
*
* You can use the value of the `x_scale` and `y_scale` parameters
* returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Kerning( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Advance
*
* @description:
* Return a given glyph advance, expressed in original metrics units,
* from a PFR font.
*
* @input:
* face ::
* A handle to the input face.
*
* gindex ::
* The glyph index.
*
* @output:
* aadvance ::
* The glyph advance in metrics units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You can use the `x_scale` or `y_scale` results of @FT_Get_PFR_Metrics
* to convert the advance to device subpixels (i.e., 1/64th of pixels).
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Advance( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance );
/* */
FT_END_HEADER
#endif /* FTPFR_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftpfr.h
|
C++
|
gpl-3.0
| 4,910
|
/****************************************************************************
*
* ftrender.h
*
* FreeType renderer modules public interface (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTRENDER_H_
#define FTRENDER_H_
#include <freetype/ftmodapi.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
*/
/* create a new glyph object */
typedef FT_Error
(*FT_Glyph_InitFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* destroys a given glyph object */
typedef void
(*FT_Glyph_DoneFunc)( FT_Glyph glyph );
typedef void
(*FT_Glyph_TransformFunc)( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph,
FT_BBox* abbox );
typedef FT_Error
(*FT_Glyph_CopyFunc)( FT_Glyph source,
FT_Glyph target );
typedef FT_Error
(*FT_Glyph_PrepareFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* deprecated */
#define FT_Glyph_Init_Func FT_Glyph_InitFunc
#define FT_Glyph_Done_Func FT_Glyph_DoneFunc
#define FT_Glyph_Transform_Func FT_Glyph_TransformFunc
#define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc
#define FT_Glyph_Copy_Func FT_Glyph_CopyFunc
#define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc
struct FT_Glyph_Class_
{
FT_Long glyph_size;
FT_Glyph_Format glyph_format;
FT_Glyph_InitFunc glyph_init;
FT_Glyph_DoneFunc glyph_done;
FT_Glyph_CopyFunc glyph_copy;
FT_Glyph_TransformFunc glyph_transform;
FT_Glyph_GetBBoxFunc glyph_bbox;
FT_Glyph_PrepareFunc glyph_prepare;
};
typedef FT_Error
(*FT_Renderer_RenderFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_Render_Mode mode,
const FT_Vector* origin );
typedef FT_Error
(*FT_Renderer_TransformFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_BBox* cbox );
typedef FT_Error
(*FT_Renderer_SetModeFunc)( FT_Renderer renderer,
FT_ULong mode_tag,
FT_Pointer mode_ptr );
/* deprecated identifiers */
#define FTRenderer_render FT_Renderer_RenderFunc
#define FTRenderer_transform FT_Renderer_TransformFunc
#define FTRenderer_getCBox FT_Renderer_GetCBoxFunc
#define FTRenderer_setMode FT_Renderer_SetModeFunc
/**************************************************************************
*
* @struct:
* FT_Renderer_Class
*
* @description:
* The renderer module class descriptor.
*
* @fields:
* root ::
* The root @FT_Module_Class fields.
*
* glyph_format ::
* The glyph image format this renderer handles.
*
* render_glyph ::
* A method used to render the image that is in a given glyph slot into
* a bitmap.
*
* transform_glyph ::
* A method used to transform the image that is in a given glyph slot.
*
* get_glyph_cbox ::
* A method used to access the glyph's cbox.
*
* set_mode ::
* A method used to pass additional parameters.
*
* raster_class ::
* For @FT_GLYPH_FORMAT_OUTLINE renderers only. This is a pointer to
* its raster's class.
*/
typedef struct FT_Renderer_Class_
{
FT_Module_Class root;
FT_Glyph_Format glyph_format;
FT_Renderer_RenderFunc render_glyph;
FT_Renderer_TransformFunc transform_glyph;
FT_Renderer_GetCBoxFunc get_glyph_cbox;
FT_Renderer_SetModeFunc set_mode;
FT_Raster_Funcs* raster_class;
} FT_Renderer_Class;
/**************************************************************************
*
* @function:
* FT_Get_Renderer
*
* @description:
* Retrieve the current renderer for a given glyph format.
*
* @input:
* library ::
* A handle to the library object.
*
* format ::
* The glyph format.
*
* @return:
* A renderer handle. 0~if none found.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*
* To add a new renderer, simply use @FT_Add_Module. To retrieve a
* renderer by its name, use @FT_Get_Module.
*/
FT_EXPORT( FT_Renderer )
FT_Get_Renderer( FT_Library library,
FT_Glyph_Format format );
/**************************************************************************
*
* @function:
* FT_Set_Renderer
*
* @description:
* Set the current renderer to use, and set additional mode.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* renderer ::
* A handle to the renderer object.
*
* num_params ::
* The number of additional parameters.
*
* parameters ::
* Additional parameters.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* In case of success, the renderer will be used to convert glyph images
* in the renderer's known format into bitmaps.
*
* This doesn't change the current renderer for other formats.
*
* Currently, no FreeType renderer module uses `parameters`; you should
* thus always pass `NULL` as the value.
*/
FT_EXPORT( FT_Error )
FT_Set_Renderer( FT_Library library,
FT_Renderer renderer,
FT_UInt num_params,
FT_Parameter* parameters );
/* */
FT_END_HEADER
#endif /* FTRENDER_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftrender.h
|
C++
|
gpl-3.0
| 6,625
|
/****************************************************************************
*
* ftsizes.h
*
* FreeType size objects management (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* Typical application would normally not need to use these functions.
* However, they have been placed in a public API for the rare cases where
* they are needed.
*
*/
#ifndef FTSIZES_H_
#define FTSIZES_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sizes_management
*
* @title:
* Size Management
*
* @abstract:
* Managing multiple sizes per face.
*
* @description:
* When creating a new face object (e.g., with @FT_New_Face), an @FT_Size
* object is automatically created and used to store all pixel-size
* dependent information, available in the `face->size` field.
*
* It is however possible to create more sizes for a given face, mostly
* in order to manage several character pixel sizes of the same font
* family and style. See @FT_New_Size and @FT_Done_Size.
*
* Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only modify the
* contents of the current 'active' size; you thus need to use
* @FT_Activate_Size to change it.
*
* 99% of applications won't need the functions provided here, especially
* if they use the caching sub-system, so be cautious when using these.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Size
*
* @description:
* Create a new size object from a given face object.
*
* @input:
* face ::
* A handle to a parent face object.
*
* @output:
* asize ::
* A handle to a new size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You need to call @FT_Activate_Size in order to select the new size for
* upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,
* @FT_Load_Glyph, @FT_Load_Char, etc.
*/
FT_EXPORT( FT_Error )
FT_New_Size( FT_Face face,
FT_Size* size );
/**************************************************************************
*
* @function:
* FT_Done_Size
*
* @description:
* Discard a given size object. Note that @FT_Done_Face automatically
* discards all size objects allocated with @FT_New_Size.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_Size( FT_Size size );
/**************************************************************************
*
* @function:
* FT_Activate_Size
*
* @description:
* Even though it is possible to create several size objects for a given
* face (see @FT_New_Size for details), functions like @FT_Load_Glyph or
* @FT_Load_Char only use the one that has been activated last to
* determine the 'current character pixel size'.
*
* This function can be used to 'activate' a previously created size
* object.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `face` is the size's parent face object, this function changes the
* value of `face->size` to the input size handle.
*/
FT_EXPORT( FT_Error )
FT_Activate_Size( FT_Size size );
/* */
FT_END_HEADER
#endif /* FTSIZES_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftsizes.h
|
C++
|
gpl-3.0
| 4,288
|
/****************************************************************************
*
* ftsnames.h
*
* Simple interface to access SFNT 'name' tables (which are used
* to hold font names, copyright info, notices, etc.) (specification).
*
* This is _not_ used to retrieve glyph names!
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSNAMES_H_
#define FTSNAMES_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sfnt_names
*
* @title:
* SFNT Names
*
* @abstract:
* Access the names embedded in TrueType and OpenType files.
*
* @description:
* The TrueType and OpenType specifications allow the inclusion of a
* special names table ('name') in font files. This table contains
* textual (and internationalized) information regarding the font, like
* family name, copyright, version, etc.
*
* The definitions below are used to access them if available.
*
* Note that this has nothing to do with glyph names!
*
*/
/**************************************************************************
*
* @struct:
* FT_SfntName
*
* @description:
* A structure used to model an SFNT 'name' table entry.
*
* @fields:
* platform_id ::
* The platform ID for `string`. See @TT_PLATFORM_XXX for possible
* values.
*
* encoding_id ::
* The encoding ID for `string`. See @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,
* @TT_ISO_ID_XXX, @TT_MS_ID_XXX, and @TT_ADOBE_ID_XXX for possible
* values.
*
* language_id ::
* The language ID for `string`. See @TT_MAC_LANGID_XXX and
* @TT_MS_LANGID_XXX for possible values.
*
* Registered OpenType values for `language_id` are always smaller than
* 0x8000; values equal or larger than 0x8000 usually indicate a
* language tag string (introduced in OpenType version 1.6). Use
* function @FT_Get_Sfnt_LangTag with `language_id` as its argument to
* retrieve the associated language tag.
*
* name_id ::
* An identifier for `string`. See @TT_NAME_ID_XXX for possible
* values.
*
* string ::
* The 'name' string. Note that its format differs depending on the
* (platform,encoding) pair, being either a string of bytes (without a
* terminating `NULL` byte) or containing UTF-16BE entities.
*
* string_len ::
* The length of `string` in bytes.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*/
typedef struct FT_SfntName_
{
FT_UShort platform_id;
FT_UShort encoding_id;
FT_UShort language_id;
FT_UShort name_id;
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntName;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name_Count
*
* @description:
* Retrieve the number of name strings in the SFNT 'name' table.
*
* @input:
* face ::
* A handle to the source face.
*
* @return:
* The number of strings in the 'name' table.
*
* @note:
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_UInt )
FT_Get_Sfnt_Name_Count( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name
*
* @description:
* Retrieve a string of the SFNT 'name' table for a given index.
*
* @input:
* face ::
* A handle to the source face.
*
* idx ::
* The index of the 'name' string.
*
* @output:
* aname ::
* The indexed @FT_SfntName structure.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `aname` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Use @FT_Get_Sfnt_Name_Count to get the total number of available
* 'name' table entries, then do a loop until you get the right platform,
* encoding, and name ID.
*
* 'name' table format~1 entries can use language tags also, see
* @FT_Get_Sfnt_LangTag.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_Name( FT_Face face,
FT_UInt idx,
FT_SfntName *aname );
/**************************************************************************
*
* @struct:
* FT_SfntLangTag
*
* @description:
* A structure to model a language tag entry from an SFNT 'name' table.
*
* @fields:
* string ::
* The language tag string, encoded in UTF-16BE (without trailing
* `NULL` bytes).
*
* string_len ::
* The length of `string` in **bytes**.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*
* @since:
* 2.8
*/
typedef struct FT_SfntLangTag_
{
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntLangTag;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_LangTag
*
* @description:
* Retrieve the language tag associated with a language ID of an SFNT
* 'name' table entry.
*
* @input:
* face ::
* A handle to the source face.
*
* langID ::
* The language ID, as returned by @FT_Get_Sfnt_Name. This is always a
* value larger than 0x8000.
*
* @output:
* alangTag ::
* The language tag associated with the 'name' table entry's language
* ID.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `alangTag` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Only 'name' table format~1 supports language tags. For format~0
* tables, this function always returns FT_Err_Invalid_Table. For
* invalid format~1 language ID values, FT_Err_Invalid_Argument is
* returned.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*
* @since:
* 2.8
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_LangTag( FT_Face face,
FT_UInt langID,
FT_SfntLangTag *alangTag );
/* */
FT_END_HEADER
#endif /* FTSNAMES_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftsnames.h
|
C++
|
gpl-3.0
| 7,730
|
/****************************************************************************
*
* ftstroke.h
*
* FreeType path stroker (specification).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSTROKE_H_
#define FTSTROKE_H_
#include <freetype/ftoutln.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_stroker
*
* @title:
* Glyph Stroker
*
* @abstract:
* Generating bordered and stroked glyphs.
*
* @description:
* This component generates stroked outlines of a given vectorial glyph.
* It also allows you to retrieve the 'outside' and/or the 'inside'
* borders of the stroke.
*
* This can be useful to generate 'bordered' glyph, i.e., glyphs
* displayed with a colored (and anti-aliased) border around their
* shape.
*
* @order:
* FT_Stroker
*
* FT_Stroker_LineJoin
* FT_Stroker_LineCap
* FT_StrokerBorder
*
* FT_Outline_GetInsideBorder
* FT_Outline_GetOutsideBorder
*
* FT_Glyph_Stroke
* FT_Glyph_StrokeBorder
*
* FT_Stroker_New
* FT_Stroker_Set
* FT_Stroker_Rewind
* FT_Stroker_ParseOutline
* FT_Stroker_Done
*
* FT_Stroker_BeginSubPath
* FT_Stroker_EndSubPath
*
* FT_Stroker_LineTo
* FT_Stroker_ConicTo
* FT_Stroker_CubicTo
*
* FT_Stroker_GetBorderCounts
* FT_Stroker_ExportBorder
* FT_Stroker_GetCounts
* FT_Stroker_Export
*
*/
/**************************************************************************
*
* @type:
* FT_Stroker
*
* @description:
* Opaque handle to a path stroker object.
*/
typedef struct FT_StrokerRec_* FT_Stroker;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineJoin
*
* @description:
* These values determine how two joining lines are rendered in a
* stroker.
*
* @values:
* FT_STROKER_LINEJOIN_ROUND ::
* Used to render rounded line joins. Circular arcs are used to join
* two lines smoothly.
*
* FT_STROKER_LINEJOIN_BEVEL ::
* Used to render beveled line joins. The outer corner of the joined
* lines is filled by enclosing the triangular region of the corner
* with a straight line between the outer corners of each stroke.
*
* FT_STROKER_LINEJOIN_MITER_FIXED ::
* Used to render mitered line joins, with fixed bevels if the miter
* limit is exceeded. The outer edges of the strokes for the two
* segments are extended until they meet at an angle. A bevel join
* (see above) is used if the segments meet at too sharp an angle and
* the outer edges meet beyond a distance corresponding to the meter
* limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_FIXED` generates a miter line join as
* used in PostScript and PDF.
*
* FT_STROKER_LINEJOIN_MITER_VARIABLE ::
* FT_STROKER_LINEJOIN_MITER ::
* Used to render mitered line joins, with variable bevels if the miter
* limit is exceeded. The intersection of the strokes is clipped
* perpendicularly to the bisector, at a distance corresponding to
* the miter limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_VARIABLE` generates a mitered line join
* as used in XPS. `FT_STROKER_LINEJOIN_MITER` is an alias for
* `FT_STROKER_LINEJOIN_MITER_VARIABLE`, retained for backward
* compatibility.
*/
typedef enum FT_Stroker_LineJoin_
{
FT_STROKER_LINEJOIN_ROUND = 0,
FT_STROKER_LINEJOIN_BEVEL = 1,
FT_STROKER_LINEJOIN_MITER_VARIABLE = 2,
FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE,
FT_STROKER_LINEJOIN_MITER_FIXED = 3
} FT_Stroker_LineJoin;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineCap
*
* @description:
* These values determine how the end of opened sub-paths are rendered in
* a stroke.
*
* @values:
* FT_STROKER_LINECAP_BUTT ::
* The end of lines is rendered as a full stop on the last point
* itself.
*
* FT_STROKER_LINECAP_ROUND ::
* The end of lines is rendered as a half-circle around the last point.
*
* FT_STROKER_LINECAP_SQUARE ::
* The end of lines is rendered as a square around the last point.
*/
typedef enum FT_Stroker_LineCap_
{
FT_STROKER_LINECAP_BUTT = 0,
FT_STROKER_LINECAP_ROUND,
FT_STROKER_LINECAP_SQUARE
} FT_Stroker_LineCap;
/**************************************************************************
*
* @enum:
* FT_StrokerBorder
*
* @description:
* These values are used to select a given stroke border in
* @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder.
*
* @values:
* FT_STROKER_BORDER_LEFT ::
* Select the left border, relative to the drawing direction.
*
* FT_STROKER_BORDER_RIGHT ::
* Select the right border, relative to the drawing direction.
*
* @note:
* Applications are generally interested in the 'inside' and 'outside'
* borders. However, there is no direct mapping between these and the
* 'left' and 'right' ones, since this really depends on the glyph's
* drawing orientation, which varies between font formats.
*
* You can however use @FT_Outline_GetInsideBorder and
* @FT_Outline_GetOutsideBorder to get these.
*/
typedef enum FT_StrokerBorder_
{
FT_STROKER_BORDER_LEFT = 0,
FT_STROKER_BORDER_RIGHT
} FT_StrokerBorder;
/**************************************************************************
*
* @function:
* FT_Outline_GetInsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'inside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_RIGHT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetInsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_GetOutsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'outside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_LEFT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetOutsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_New
*
* @description:
* Create a new stroker object.
*
* @input:
* library ::
* FreeType library handle.
*
* @output:
* astroker ::
* A new stroker object handle. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_New( FT_Library library,
FT_Stroker *astroker );
/**************************************************************************
*
* @function:
* FT_Stroker_Set
*
* @description:
* Reset a stroker object's attributes.
*
* @input:
* stroker ::
* The target stroker handle.
*
* radius ::
* The border radius.
*
* line_cap ::
* The line cap style.
*
* line_join ::
* The line join style.
*
* miter_limit ::
* The maximum reciprocal sine of half-angle at the miter join,
* expressed as 16.16 fixed point value.
*
* @note:
* The `radius` is expressed in the same units as the outline
* coordinates.
*
* The `miter_limit` multiplied by the `radius` gives the maximum size
* of a miter spike, at which it is clipped for
* @FT_STROKER_LINEJOIN_MITER_VARIABLE or replaced with a bevel join for
* @FT_STROKER_LINEJOIN_MITER_FIXED.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( void )
FT_Stroker_Set( FT_Stroker stroker,
FT_Fixed radius,
FT_Stroker_LineCap line_cap,
FT_Stroker_LineJoin line_join,
FT_Fixed miter_limit );
/**************************************************************************
*
* @function:
* FT_Stroker_Rewind
*
* @description:
* Reset a stroker object without changing its attributes. You should
* call this function before beginning a new series of calls to
* @FT_Stroker_BeginSubPath or @FT_Stroker_EndSubPath.
*
* @input:
* stroker ::
* The target stroker handle.
*/
FT_EXPORT( void )
FT_Stroker_Rewind( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_ParseOutline
*
* @description:
* A convenience function used to parse a whole outline with the stroker.
* The resulting outline(s) can be retrieved later by functions like
* @FT_Stroker_GetCounts and @FT_Stroker_Export.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The source outline.
*
* opened ::
* A boolean. If~1, the outline is treated as an open path instead of
* a closed one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `opened` is~0 (the default), the outline is treated as a closed
* path, and the stroker generates two distinct 'border' outlines.
*
* If `opened` is~1, the outline is processed as an open path, and the
* stroker generates a single 'stroke' outline.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ParseOutline( FT_Stroker stroker,
FT_Outline* outline,
FT_Bool opened );
/**************************************************************************
*
* @function:
* FT_Stroker_BeginSubPath
*
* @description:
* Start a new sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the start vector.
*
* open ::
* A boolean. If~1, the sub-path is treated as an open one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is useful when you need to stroke a path that is not
* stored as an @FT_Outline object.
*/
FT_EXPORT( FT_Error )
FT_Stroker_BeginSubPath( FT_Stroker stroker,
FT_Vector* to,
FT_Bool open );
/**************************************************************************
*
* @function:
* FT_Stroker_EndSubPath
*
* @description:
* Close the current sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function after @FT_Stroker_BeginSubPath. If the
* subpath was not 'opened', this function 'draws' a single line segment
* to the start position when needed.
*/
FT_EXPORT( FT_Error )
FT_Stroker_EndSubPath( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_LineTo
*
* @description:
* 'Draw' a single line segment in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_LineTo( FT_Stroker stroker,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_ConicTo
*
* @description:
* 'Draw' a single quadratic Bezier in the stroker's current sub-path,
* from the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control ::
* A pointer to a Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ConicTo( FT_Stroker stroker,
FT_Vector* control,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_CubicTo
*
* @description:
* 'Draw' a single cubic Bezier in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control1 ::
* A pointer to the first Bezier control point.
*
* control2 ::
* A pointer to second Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_CubicTo( FT_Stroker stroker,
FT_Vector* control1,
FT_Vector* control2,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_GetBorderCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export one of the 'border' or 'stroke' outlines generated by the
* stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_GetCounts instead if you want to retrieve
* the counts associated to both borders.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetBorderCounts( FT_Stroker stroker,
FT_StrokerBorder border,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_ExportBorder
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export the
* corresponding border to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* outline ::
* The target outline handle.
*
* @note:
* Always call this function after @FT_Stroker_GetBorderCounts to get
* sure that there is enough room in your @FT_Outline object to receive
* all new data.
*
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_Export instead if you want to retrieve
* all borders at once.
*/
FT_EXPORT( void )
FT_Stroker_ExportBorder( FT_Stroker stroker,
FT_StrokerBorder border,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_GetCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export all points/borders from the stroked outline/path.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetCounts( FT_Stroker stroker,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_Export
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export all
* borders to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The target outline handle.
*/
FT_EXPORT( void )
FT_Stroker_Export( FT_Stroker stroker,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_Done
*
* @description:
* Destroy a stroker object.
*
* @input:
* stroker ::
* A stroker handle. Can be `NULL`.
*/
FT_EXPORT( void )
FT_Stroker_Done( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Glyph_Stroke
*
* @description:
* Stroke a given outline glyph object with a given stroker.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Stroke( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Glyph_StrokeBorder
*
* @description:
* Stroke a given outline glyph object with a given stroker, but only
* return either its inside or outside border.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* inside ::
* A Boolean. If~1, return the inside border, otherwise the outside
* border.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_StrokeBorder( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool inside,
FT_Bool destroy );
/* */
FT_END_HEADER
#endif /* FTSTROKE_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftstroke.h
|
C++
|
gpl-3.0
| 21,773
|
/****************************************************************************
*
* ftsynth.h
*
* FreeType synthesizing code for emboldening and slanting
* (specification).
*
* Copyright (C) 2000-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/********* *********/
/********* WARNING, THIS IS ALPHA CODE! THIS API *********/
/********* IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE *********/
/********* FREETYPE DEVELOPMENT TEAM *********/
/********* *********/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* Main reason for not lifting the functions in this module to a */
/* 'standard' API is that the used parameters for emboldening and */
/* slanting are not configurable. Consider the functions as a */
/* code resource that should be copied into the application and */
/* adapted to the particular needs. */
#ifndef FTSYNTH_H_
#define FTSYNTH_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/* Embolden a glyph by a 'reasonable' value (which is highly a matter of */
/* taste). This function is actually a convenience function, providing */
/* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */
/* */
/* For emboldened outlines the height, width, and advance metrics are */
/* increased by the strength of the emboldening -- this even affects */
/* mono-width fonts! */
/* */
/* You can also call @FT_Outline_Get_CBox to get precise values. */
FT_EXPORT( void )
FT_GlyphSlot_Embolden( FT_GlyphSlot slot );
/* Slant an outline glyph to the right by about 12 degrees. */
FT_EXPORT( void )
FT_GlyphSlot_Oblique( FT_GlyphSlot slot );
/* */
FT_END_HEADER
#endif /* FTSYNTH_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftsynth.h
|
C++
|
gpl-3.0
| 3,362
|
/****************************************************************************
*
* ftsystem.h
*
* FreeType low-level system interface definition (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSYSTEM_H_
#define FTSYSTEM_H_
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* system_interface
*
* @title:
* System Interface
*
* @abstract:
* How FreeType manages memory and i/o.
*
* @description:
* This section contains various definitions related to memory management
* and i/o access. You need to understand this information if you want to
* use a custom memory manager or you own i/o streams.
*
*/
/**************************************************************************
*
* M E M O R Y M A N A G E M E N T
*
*/
/**************************************************************************
*
* @type:
* FT_Memory
*
* @description:
* A handle to a given memory manager object, defined with an
* @FT_MemoryRec structure.
*
*/
typedef struct FT_MemoryRec_* FT_Memory;
/**************************************************************************
*
* @functype:
* FT_Alloc_Func
*
* @description:
* A function used to allocate `size` bytes from `memory`.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* size ::
* The size in bytes to allocate.
*
* @return:
* Address of new memory block. 0~in case of failure.
*
*/
typedef void*
(*FT_Alloc_Func)( FT_Memory memory,
long size );
/**************************************************************************
*
* @functype:
* FT_Free_Func
*
* @description:
* A function used to release a given block of memory.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* block ::
* The address of the target memory block.
*
*/
typedef void
(*FT_Free_Func)( FT_Memory memory,
void* block );
/**************************************************************************
*
* @functype:
* FT_Realloc_Func
*
* @description:
* A function used to re-allocate a given block of memory.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* cur_size ::
* The block's current size in bytes.
*
* new_size ::
* The block's requested new size.
*
* block ::
* The block's current address.
*
* @return:
* New block address. 0~in case of memory shortage.
*
* @note:
* In case of error, the old block must still be available.
*
*/
typedef void*
(*FT_Realloc_Func)( FT_Memory memory,
long cur_size,
long new_size,
void* block );
/**************************************************************************
*
* @struct:
* FT_MemoryRec
*
* @description:
* A structure used to describe a given memory manager to FreeType~2.
*
* @fields:
* user ::
* A generic typeless pointer for user data.
*
* alloc ::
* A pointer type to an allocation function.
*
* free ::
* A pointer type to an memory freeing function.
*
* realloc ::
* A pointer type to a reallocation function.
*
*/
struct FT_MemoryRec_
{
void* user;
FT_Alloc_Func alloc;
FT_Free_Func free;
FT_Realloc_Func realloc;
};
/**************************************************************************
*
* I / O M A N A G E M E N T
*
*/
/**************************************************************************
*
* @type:
* FT_Stream
*
* @description:
* A handle to an input stream.
*
* @also:
* See @FT_StreamRec for the publicly accessible fields of a given stream
* object.
*
*/
typedef struct FT_StreamRec_* FT_Stream;
/**************************************************************************
*
* @struct:
* FT_StreamDesc
*
* @description:
* A union type used to store either a long or a pointer. This is used
* to store a file descriptor or a `FILE*` in an input stream.
*
*/
typedef union FT_StreamDesc_
{
long value;
void* pointer;
} FT_StreamDesc;
/**************************************************************************
*
* @functype:
* FT_Stream_IoFunc
*
* @description:
* A function used to seek and read data from a given input stream.
*
* @input:
* stream ::
* A handle to the source stream.
*
* offset ::
* The offset of read in stream (always from start).
*
* buffer ::
* The address of the read buffer.
*
* count ::
* The number of bytes to read from the stream.
*
* @return:
* The number of bytes effectively read by the stream.
*
* @note:
* This function might be called to perform a seek or skip operation with
* a `count` of~0. A non-zero return value then indicates an error.
*
*/
typedef unsigned long
(*FT_Stream_IoFunc)( FT_Stream stream,
unsigned long offset,
unsigned char* buffer,
unsigned long count );
/**************************************************************************
*
* @functype:
* FT_Stream_CloseFunc
*
* @description:
* A function used to close a given input stream.
*
* @input:
* stream ::
* A handle to the target stream.
*
*/
typedef void
(*FT_Stream_CloseFunc)( FT_Stream stream );
/**************************************************************************
*
* @struct:
* FT_StreamRec
*
* @description:
* A structure used to describe an input stream.
*
* @input:
* base ::
* For memory-based streams, this is the address of the first stream
* byte in memory. This field should always be set to `NULL` for
* disk-based streams.
*
* size ::
* The stream size in bytes.
*
* In case of compressed streams where the size is unknown before
* actually doing the decompression, the value is set to 0x7FFFFFFF.
* (Note that this size value can occur for normal streams also; it is
* thus just a hint.)
*
* pos ::
* The current position within the stream.
*
* descriptor ::
* This field is a union that can hold an integer or a pointer. It is
* used by stream implementations to store file descriptors or `FILE*`
* pointers.
*
* pathname ::
* This field is completely ignored by FreeType. However, it is often
* useful during debugging to use it to store the stream's filename
* (where available).
*
* read ::
* The stream's input function.
*
* close ::
* The stream's close function.
*
* memory ::
* The memory manager to use to preload frames. This is set internally
* by FreeType and shouldn't be touched by stream implementations.
*
* cursor ::
* This field is set and used internally by FreeType when parsing
* frames. In particular, the `FT_GET_XXX` macros use this instead of
* the `pos` field.
*
* limit ::
* This field is set and used internally by FreeType when parsing
* frames.
*
*/
typedef struct FT_StreamRec_
{
unsigned char* base;
unsigned long size;
unsigned long pos;
FT_StreamDesc descriptor;
FT_StreamDesc pathname;
FT_Stream_IoFunc read;
FT_Stream_CloseFunc close;
FT_Memory memory;
unsigned char* cursor;
unsigned char* limit;
} FT_StreamRec;
/* */
FT_END_HEADER
#endif /* FTSYSTEM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftsystem.h
|
C++
|
gpl-3.0
| 8,518
|
/****************************************************************************
*
* fttrigon.h
*
* FreeType trigonometric functions (specification).
*
* Copyright (C) 2001-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTTRIGON_H_
#define FTTRIGON_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* computations
*
*/
/**************************************************************************
*
* @type:
* FT_Angle
*
* @description:
* This type is used to model angle values in FreeType. Note that the
* angle is a 16.16 fixed-point value expressed in degrees.
*
*/
typedef FT_Fixed FT_Angle;
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI
*
* @description:
* The angle pi expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI ( 180L << 16 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_2PI
*
* @description:
* The angle 2*pi expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI2
*
* @description:
* The angle pi/2 expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI4
*
* @description:
* The angle pi/4 expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 )
/**************************************************************************
*
* @function:
* FT_Sin
*
* @description:
* Return the sinus of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The sinus value.
*
* @note:
* If you need both the sinus and cosinus for a given angle, use the
* function @FT_Vector_Unit.
*
*/
FT_EXPORT( FT_Fixed )
FT_Sin( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Cos
*
* @description:
* Return the cosinus of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The cosinus value.
*
* @note:
* If you need both the sinus and cosinus for a given angle, use the
* function @FT_Vector_Unit.
*
*/
FT_EXPORT( FT_Fixed )
FT_Cos( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Tan
*
* @description:
* Return the tangent of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The tangent value.
*
*/
FT_EXPORT( FT_Fixed )
FT_Tan( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Atan2
*
* @description:
* Return the arc-tangent corresponding to a given vector (x,y) in the 2d
* plane.
*
* @input:
* x ::
* The horizontal vector coordinate.
*
* y ::
* The vertical vector coordinate.
*
* @return:
* The arc-tangent value (i.e. angle).
*
*/
FT_EXPORT( FT_Angle )
FT_Atan2( FT_Fixed x,
FT_Fixed y );
/**************************************************************************
*
* @function:
* FT_Angle_Diff
*
* @description:
* Return the difference between two angles. The result is always
* constrained to the ]-PI..PI] interval.
*
* @input:
* angle1 ::
* First angle.
*
* angle2 ::
* Second angle.
*
* @return:
* Constrained value of `angle2-angle1`.
*
*/
FT_EXPORT( FT_Angle )
FT_Angle_Diff( FT_Angle angle1,
FT_Angle angle2 );
/**************************************************************************
*
* @function:
* FT_Vector_Unit
*
* @description:
* Return the unit vector corresponding to a given angle. After the
* call, the value of `vec.x` will be `cos(angle)`, and the value of
* `vec.y` will be `sin(angle)`.
*
* This function is useful to retrieve both the sinus and cosinus of a
* given angle quickly.
*
* @output:
* vec ::
* The address of target vector.
*
* @input:
* angle ::
* The input angle.
*
*/
FT_EXPORT( void )
FT_Vector_Unit( FT_Vector* vec,
FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Vector_Rotate
*
* @description:
* Rotate a vector by a given angle.
*
* @inout:
* vec ::
* The address of target vector.
*
* @input:
* angle ::
* The input angle.
*
*/
FT_EXPORT( void )
FT_Vector_Rotate( FT_Vector* vec,
FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Vector_Length
*
* @description:
* Return the length of a given vector.
*
* @input:
* vec ::
* The address of target vector.
*
* @return:
* The vector length, expressed in the same units that the original
* vector coordinates.
*
*/
FT_EXPORT( FT_Fixed )
FT_Vector_Length( FT_Vector* vec );
/**************************************************************************
*
* @function:
* FT_Vector_Polarize
*
* @description:
* Compute both the length and angle of a given vector.
*
* @input:
* vec ::
* The address of source vector.
*
* @output:
* length ::
* The vector length.
*
* angle ::
* The vector angle.
*
*/
FT_EXPORT( void )
FT_Vector_Polarize( FT_Vector* vec,
FT_Fixed *length,
FT_Angle *angle );
/**************************************************************************
*
* @function:
* FT_Vector_From_Polar
*
* @description:
* Compute vector coordinates from a length and angle.
*
* @output:
* vec ::
* The address of source vector.
*
* @input:
* length ::
* The vector length.
*
* angle ::
* The vector angle.
*
*/
FT_EXPORT( void )
FT_Vector_From_Polar( FT_Vector* vec,
FT_Fixed length,
FT_Angle angle );
/* */
FT_END_HEADER
#endif /* FTTRIGON_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/fttrigon.h
|
C++
|
gpl-3.0
| 7,411
|
/****************************************************************************
*
* fttypes.h
*
* FreeType simple types definitions (specification only).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTTYPES_H_
#define FTTYPES_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/ftsystem.h>
#include <freetype/ftimage.h>
#include <stddef.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* basic_types
*
* @title:
* Basic Data Types
*
* @abstract:
* The basic data types defined by the library.
*
* @description:
* This section contains the basic data types defined by FreeType~2,
* ranging from simple scalar types to bitmap descriptors. More
* font-specific structures are defined in a different section.
*
* @order:
* FT_Byte
* FT_Bytes
* FT_Char
* FT_Int
* FT_UInt
* FT_Int16
* FT_UInt16
* FT_Int32
* FT_UInt32
* FT_Int64
* FT_UInt64
* FT_Short
* FT_UShort
* FT_Long
* FT_ULong
* FT_Bool
* FT_Offset
* FT_PtrDist
* FT_String
* FT_Tag
* FT_Error
* FT_Fixed
* FT_Pointer
* FT_Pos
* FT_Vector
* FT_BBox
* FT_Matrix
* FT_FWord
* FT_UFWord
* FT_F2Dot14
* FT_UnitVector
* FT_F26Dot6
* FT_Data
*
* FT_MAKE_TAG
*
* FT_Generic
* FT_Generic_Finalizer
*
* FT_Bitmap
* FT_Pixel_Mode
* FT_Palette_Mode
* FT_Glyph_Format
* FT_IMAGE_TAG
*
*/
/**************************************************************************
*
* @type:
* FT_Bool
*
* @description:
* A typedef of unsigned char, used for simple booleans. As usual,
* values 1 and~0 represent true and false, respectively.
*/
typedef unsigned char FT_Bool;
/**************************************************************************
*
* @type:
* FT_FWord
*
* @description:
* A signed 16-bit integer used to store a distance in original font
* units.
*/
typedef signed short FT_FWord; /* distance in FUnits */
/**************************************************************************
*
* @type:
* FT_UFWord
*
* @description:
* An unsigned 16-bit integer used to store a distance in original font
* units.
*/
typedef unsigned short FT_UFWord; /* unsigned distance */
/**************************************************************************
*
* @type:
* FT_Char
*
* @description:
* A simple typedef for the _signed_ char type.
*/
typedef signed char FT_Char;
/**************************************************************************
*
* @type:
* FT_Byte
*
* @description:
* A simple typedef for the _unsigned_ char type.
*/
typedef unsigned char FT_Byte;
/**************************************************************************
*
* @type:
* FT_Bytes
*
* @description:
* A typedef for constant memory areas.
*/
typedef const FT_Byte* FT_Bytes;
/**************************************************************************
*
* @type:
* FT_Tag
*
* @description:
* A typedef for 32-bit tags (as used in the SFNT format).
*/
typedef FT_UInt32 FT_Tag;
/**************************************************************************
*
* @type:
* FT_String
*
* @description:
* A simple typedef for the char type, usually used for strings.
*/
typedef char FT_String;
/**************************************************************************
*
* @type:
* FT_Short
*
* @description:
* A typedef for signed short.
*/
typedef signed short FT_Short;
/**************************************************************************
*
* @type:
* FT_UShort
*
* @description:
* A typedef for unsigned short.
*/
typedef unsigned short FT_UShort;
/**************************************************************************
*
* @type:
* FT_Int
*
* @description:
* A typedef for the int type.
*/
typedef signed int FT_Int;
/**************************************************************************
*
* @type:
* FT_UInt
*
* @description:
* A typedef for the unsigned int type.
*/
typedef unsigned int FT_UInt;
/**************************************************************************
*
* @type:
* FT_Long
*
* @description:
* A typedef for signed long.
*/
typedef signed long FT_Long;
/**************************************************************************
*
* @type:
* FT_ULong
*
* @description:
* A typedef for unsigned long.
*/
typedef unsigned long FT_ULong;
/**************************************************************************
*
* @type:
* FT_F2Dot14
*
* @description:
* A signed 2.14 fixed-point type used for unit vectors.
*/
typedef signed short FT_F2Dot14;
/**************************************************************************
*
* @type:
* FT_F26Dot6
*
* @description:
* A signed 26.6 fixed-point type used for vectorial pixel coordinates.
*/
typedef signed long FT_F26Dot6;
/**************************************************************************
*
* @type:
* FT_Fixed
*
* @description:
* This type is used to store 16.16 fixed-point values, like scaling
* values or matrix coefficients.
*/
typedef signed long FT_Fixed;
/**************************************************************************
*
* @type:
* FT_Error
*
* @description:
* The FreeType error code type. A value of~0 is always interpreted as a
* successful operation.
*/
typedef int FT_Error;
/**************************************************************************
*
* @type:
* FT_Pointer
*
* @description:
* A simple typedef for a typeless pointer.
*/
typedef void* FT_Pointer;
/**************************************************************************
*
* @type:
* FT_Offset
*
* @description:
* This is equivalent to the ANSI~C `size_t` type, i.e., the largest
* _unsigned_ integer type used to express a file size or position, or a
* memory block size.
*/
typedef size_t FT_Offset;
/**************************************************************************
*
* @type:
* FT_PtrDist
*
* @description:
* This is equivalent to the ANSI~C `ptrdiff_t` type, i.e., the largest
* _signed_ integer type used to express the distance between two
* pointers.
*/
typedef ft_ptrdiff_t FT_PtrDist;
/**************************************************************************
*
* @struct:
* FT_UnitVector
*
* @description:
* A simple structure used to store a 2D vector unit vector. Uses
* FT_F2Dot14 types.
*
* @fields:
* x ::
* Horizontal coordinate.
*
* y ::
* Vertical coordinate.
*/
typedef struct FT_UnitVector_
{
FT_F2Dot14 x;
FT_F2Dot14 y;
} FT_UnitVector;
/**************************************************************************
*
* @struct:
* FT_Matrix
*
* @description:
* A simple structure used to store a 2x2 matrix. Coefficients are in
* 16.16 fixed-point format. The computation performed is:
*
* ```
* x' = x*xx + y*xy
* y' = x*yx + y*yy
* ```
*
* @fields:
* xx ::
* Matrix coefficient.
*
* xy ::
* Matrix coefficient.
*
* yx ::
* Matrix coefficient.
*
* yy ::
* Matrix coefficient.
*/
typedef struct FT_Matrix_
{
FT_Fixed xx, xy;
FT_Fixed yx, yy;
} FT_Matrix;
/**************************************************************************
*
* @struct:
* FT_Data
*
* @description:
* Read-only binary data represented as a pointer and a length.
*
* @fields:
* pointer ::
* The data.
*
* length ::
* The length of the data in bytes.
*/
typedef struct FT_Data_
{
const FT_Byte* pointer;
FT_UInt length;
} FT_Data;
/**************************************************************************
*
* @functype:
* FT_Generic_Finalizer
*
* @description:
* Describe a function used to destroy the 'client' data of any FreeType
* object. See the description of the @FT_Generic type for details of
* usage.
*
* @input:
* The address of the FreeType object that is under finalization. Its
* client data is accessed through its `generic` field.
*/
typedef void (*FT_Generic_Finalizer)( void* object );
/**************************************************************************
*
* @struct:
* FT_Generic
*
* @description:
* Client applications often need to associate their own data to a
* variety of FreeType core objects. For example, a text layout API
* might want to associate a glyph cache to a given size object.
*
* Some FreeType object contains a `generic` field, of type `FT_Generic`,
* which usage is left to client applications and font servers.
*
* It can be used to store a pointer to client-specific data, as well as
* the address of a 'finalizer' function, which will be called by
* FreeType when the object is destroyed (for example, the previous
* client example would put the address of the glyph cache destructor in
* the `finalizer` field).
*
* @fields:
* data ::
* A typeless pointer to any client-specified data. This field is
* completely ignored by the FreeType library.
*
* finalizer ::
* A pointer to a 'generic finalizer' function, which will be called
* when the object is destroyed. If this field is set to `NULL`, no
* code will be called.
*/
typedef struct FT_Generic_
{
void* data;
FT_Generic_Finalizer finalizer;
} FT_Generic;
/**************************************************************************
*
* @macro:
* FT_MAKE_TAG
*
* @description:
* This macro converts four-letter tags that are used to label TrueType
* tables into an `FT_Tag` type, to be used within FreeType.
*
* @note:
* The produced values **must** be 32-bit integers. Don't redefine this
* macro.
*/
#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( FT_STATIC_BYTE_CAST( FT_Tag, _x1 ) << 24 ) | \
( FT_STATIC_BYTE_CAST( FT_Tag, _x2 ) << 16 ) | \
( FT_STATIC_BYTE_CAST( FT_Tag, _x3 ) << 8 ) | \
FT_STATIC_BYTE_CAST( FT_Tag, _x4 ) )
/*************************************************************************/
/*************************************************************************/
/* */
/* L I S T M A N A G E M E N T */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @section:
* list_processing
*
*/
/**************************************************************************
*
* @type:
* FT_ListNode
*
* @description:
* Many elements and objects in FreeType are listed through an @FT_List
* record (see @FT_ListRec). As its name suggests, an FT_ListNode is a
* handle to a single list element.
*/
typedef struct FT_ListNodeRec_* FT_ListNode;
/**************************************************************************
*
* @type:
* FT_List
*
* @description:
* A handle to a list record (see @FT_ListRec).
*/
typedef struct FT_ListRec_* FT_List;
/**************************************************************************
*
* @struct:
* FT_ListNodeRec
*
* @description:
* A structure used to hold a single list element.
*
* @fields:
* prev ::
* The previous element in the list. `NULL` if first.
*
* next ::
* The next element in the list. `NULL` if last.
*
* data ::
* A typeless pointer to the listed object.
*/
typedef struct FT_ListNodeRec_
{
FT_ListNode prev;
FT_ListNode next;
void* data;
} FT_ListNodeRec;
/**************************************************************************
*
* @struct:
* FT_ListRec
*
* @description:
* A structure used to hold a simple doubly-linked list. These are used
* in many parts of FreeType.
*
* @fields:
* head ::
* The head (first element) of doubly-linked list.
*
* tail ::
* The tail (last element) of doubly-linked list.
*/
typedef struct FT_ListRec_
{
FT_ListNode head;
FT_ListNode tail;
} FT_ListRec;
/* */
#define FT_IS_EMPTY( list ) ( (list).head == 0 )
#define FT_BOOL( x ) FT_STATIC_CAST( FT_Bool, (x) != 0 )
/* concatenate C tokens */
#define FT_ERR_XCAT( x, y ) x ## y
#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y )
/* see `ftmoderr.h` for descriptions of the following macros */
#define FT_ERR( e ) FT_ERR_CAT( FT_ERR_PREFIX, e )
#define FT_ERROR_BASE( x ) ( (x) & 0xFF )
#define FT_ERROR_MODULE( x ) ( (x) & 0xFF00U )
#define FT_ERR_EQ( x, e ) \
( FT_ERROR_BASE( x ) == FT_ERROR_BASE( FT_ERR( e ) ) )
#define FT_ERR_NEQ( x, e ) \
( FT_ERROR_BASE( x ) != FT_ERROR_BASE( FT_ERR( e ) ) )
FT_END_HEADER
#endif /* FTTYPES_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/fttypes.h
|
C++
|
gpl-3.0
| 14,549
|
/****************************************************************************
*
* ftwinfnt.h
*
* FreeType API for accessing Windows fnt-specific data.
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTWINFNT_H_
#define FTWINFNT_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* winfnt_fonts
*
* @title:
* Window FNT Files
*
* @abstract:
* Windows FNT-specific API.
*
* @description:
* This section contains the declaration of Windows FNT-specific
* functions.
*
*/
/**************************************************************************
*
* @enum:
* FT_WinFNT_ID_XXX
*
* @description:
* A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec.
* Exact mapping tables for the various 'cpXXXX' encodings (except for
* 'cp1361') can be found at 'ftp://ftp.unicode.org/Public/' in the
* `MAPPINGS/VENDORS/MICSFT/WINDOWS` subdirectory. 'cp1361' is roughly a
* superset of `MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT`.
*
* @values:
* FT_WinFNT_ID_DEFAULT ::
* This is used for font enumeration and font creation as a 'don't
* care' value. Valid font files don't contain this value. When
* querying for information about the character set of the font that is
* currently selected into a specified device context, this return
* value (of the related Windows API) simply denotes failure.
*
* FT_WinFNT_ID_SYMBOL ::
* There is no known mapping table available.
*
* FT_WinFNT_ID_MAC ::
* Mac Roman encoding.
*
* FT_WinFNT_ID_OEM ::
* From Michael Poettgen <michael@poettgen.de>:
*
* The 'Windows Font Mapping' article says that `FT_WinFNT_ID_OEM` is
* used for the charset of vector fonts, like `modern.fon`,
* `roman.fon`, and `script.fon` on Windows.
*
* The 'CreateFont' documentation says: The `FT_WinFNT_ID_OEM` value
* specifies a character set that is operating-system dependent.
*
* The 'IFIMETRICS' documentation from the 'Windows Driver Development
* Kit' says: This font supports an OEM-specific character set. The
* OEM character set is system dependent.
*
* In general OEM, as opposed to ANSI (i.e., 'cp1252'), denotes the
* second default codepage that most international versions of Windows
* have. It is one of the OEM codepages from
*
* https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers
* ,
*
* and is used for the 'DOS boxes', to support legacy applications. A
* German Windows version for example usually uses ANSI codepage 1252
* and OEM codepage 850.
*
* FT_WinFNT_ID_CP874 ::
* A superset of Thai TIS 620 and ISO 8859-11.
*
* FT_WinFNT_ID_CP932 ::
* A superset of Japanese Shift-JIS (with minor deviations).
*
* FT_WinFNT_ID_CP936 ::
* A superset of simplified Chinese GB 2312-1980 (with different
* ordering and minor deviations).
*
* FT_WinFNT_ID_CP949 ::
* A superset of Korean Hangul KS~C 5601-1987 (with different ordering
* and minor deviations).
*
* FT_WinFNT_ID_CP950 ::
* A superset of traditional Chinese Big~5 ETen (with different
* ordering and minor deviations).
*
* FT_WinFNT_ID_CP1250 ::
* A superset of East European ISO 8859-2 (with slightly different
* ordering).
*
* FT_WinFNT_ID_CP1251 ::
* A superset of Russian ISO 8859-5 (with different ordering).
*
* FT_WinFNT_ID_CP1252 ::
* ANSI encoding. A superset of ISO 8859-1.
*
* FT_WinFNT_ID_CP1253 ::
* A superset of Greek ISO 8859-7 (with minor modifications).
*
* FT_WinFNT_ID_CP1254 ::
* A superset of Turkish ISO 8859-9.
*
* FT_WinFNT_ID_CP1255 ::
* A superset of Hebrew ISO 8859-8 (with some modifications).
*
* FT_WinFNT_ID_CP1256 ::
* A superset of Arabic ISO 8859-6 (with different ordering).
*
* FT_WinFNT_ID_CP1257 ::
* A superset of Baltic ISO 8859-13 (with some deviations).
*
* FT_WinFNT_ID_CP1258 ::
* For Vietnamese. This encoding doesn't cover all necessary
* characters.
*
* FT_WinFNT_ID_CP1361 ::
* Korean (Johab).
*/
#define FT_WinFNT_ID_CP1252 0
#define FT_WinFNT_ID_DEFAULT 1
#define FT_WinFNT_ID_SYMBOL 2
#define FT_WinFNT_ID_MAC 77
#define FT_WinFNT_ID_CP932 128
#define FT_WinFNT_ID_CP949 129
#define FT_WinFNT_ID_CP1361 130
#define FT_WinFNT_ID_CP936 134
#define FT_WinFNT_ID_CP950 136
#define FT_WinFNT_ID_CP1253 161
#define FT_WinFNT_ID_CP1254 162
#define FT_WinFNT_ID_CP1258 163
#define FT_WinFNT_ID_CP1255 177
#define FT_WinFNT_ID_CP1256 178
#define FT_WinFNT_ID_CP1257 186
#define FT_WinFNT_ID_CP1251 204
#define FT_WinFNT_ID_CP874 222
#define FT_WinFNT_ID_CP1250 238
#define FT_WinFNT_ID_OEM 255
/**************************************************************************
*
* @struct:
* FT_WinFNT_HeaderRec
*
* @description:
* Windows FNT Header info.
*/
typedef struct FT_WinFNT_HeaderRec_
{
FT_UShort version;
FT_ULong file_size;
FT_Byte copyright[60];
FT_UShort file_type;
FT_UShort nominal_point_size;
FT_UShort vertical_resolution;
FT_UShort horizontal_resolution;
FT_UShort ascent;
FT_UShort internal_leading;
FT_UShort external_leading;
FT_Byte italic;
FT_Byte underline;
FT_Byte strike_out;
FT_UShort weight;
FT_Byte charset;
FT_UShort pixel_width;
FT_UShort pixel_height;
FT_Byte pitch_and_family;
FT_UShort avg_width;
FT_UShort max_width;
FT_Byte first_char;
FT_Byte last_char;
FT_Byte default_char;
FT_Byte break_char;
FT_UShort bytes_per_row;
FT_ULong device_offset;
FT_ULong face_name_offset;
FT_ULong bits_pointer;
FT_ULong bits_offset;
FT_Byte reserved;
FT_ULong flags;
FT_UShort A_space;
FT_UShort B_space;
FT_UShort C_space;
FT_UShort color_table_offset;
FT_ULong reserved1[4];
} FT_WinFNT_HeaderRec;
/**************************************************************************
*
* @struct:
* FT_WinFNT_Header
*
* @description:
* A handle to an @FT_WinFNT_HeaderRec structure.
*/
typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header;
/**************************************************************************
*
* @function:
* FT_Get_WinFNT_Header
*
* @description:
* Retrieve a Windows FNT font info header.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* aheader ::
* The WinFNT header.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with Windows FNT faces, returning an error
* otherwise.
*/
FT_EXPORT( FT_Error )
FT_Get_WinFNT_Header( FT_Face face,
FT_WinFNT_HeaderRec *aheader );
/* */
FT_END_HEADER
#endif /* FTWINFNT_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/ftwinfnt.h
|
C++
|
gpl-3.0
| 7,965
|
/****************************************************************************
*
* autohint.h
*
* High-level 'autohint' module-specific interface (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* The auto-hinter is used to load and automatically hint glyphs if a
* format-specific hinter isn't available.
*
*/
#ifndef AUTOHINT_H_
#define AUTOHINT_H_
/**************************************************************************
*
* A small technical note regarding automatic hinting in order to clarify
* this module interface.
*
* An automatic hinter might compute two kinds of data for a given face:
*
* - global hints: Usually some metrics that describe global properties
* of the face. It is computed by scanning more or less
* aggressively the glyphs in the face, and thus can be
* very slow to compute (even if the size of global hints
* is really small).
*
* - glyph hints: These describe some important features of the glyph
* outline, as well as how to align them. They are
* generally much faster to compute than global hints.
*
* The current FreeType auto-hinter does a pretty good job while performing
* fast computations for both global and glyph hints. However, we might be
* interested in introducing more complex and powerful algorithms in the
* future, like the one described in the John D. Hobby paper, which
* unfortunately requires a lot more horsepower.
*
* Because a sufficiently sophisticated font management system would
* typically implement an LRU cache of opened face objects to reduce memory
* usage, it is a good idea to be able to avoid recomputing global hints
* every time the same face is re-opened.
*
* We thus provide the ability to cache global hints outside of the face
* object, in order to speed up font re-opening time. Of course, this
* feature is purely optional, so most client programs won't even notice
* it.
*
* I initially thought that it would be a good idea to cache the glyph
* hints too. However, my general idea now is that if you really need to
* cache these too, you are simply in need of a new font format, where all
* this information could be stored within the font file and decoded on the
* fly.
*
*/
#include <freetype/freetype.h>
FT_BEGIN_HEADER
typedef struct FT_AutoHinterRec_ *FT_AutoHinter;
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalGetFunc
*
* @description:
* Retrieve the global hints computed for a given face object. The
* resulting data is dissociated from the face and will survive a call to
* FT_Done_Face(). It must be discarded through the API
* FT_AutoHinter_GlobalDoneFunc().
*
* @input:
* hinter ::
* A handle to the source auto-hinter.
*
* face ::
* A handle to the source face object.
*
* @output:
* global_hints ::
* A typeless pointer to the global hints.
*
* global_len ::
* The size in bytes of the global hints.
*/
typedef void
(*FT_AutoHinter_GlobalGetFunc)( FT_AutoHinter hinter,
FT_Face face,
void** global_hints,
long* global_len );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalDoneFunc
*
* @description:
* Discard the global hints retrieved through
* FT_AutoHinter_GlobalGetFunc(). This is the only way these hints are
* freed from memory.
*
* @input:
* hinter ::
* A handle to the auto-hinter module.
*
* global ::
* A pointer to retrieved global hints to discard.
*/
typedef void
(*FT_AutoHinter_GlobalDoneFunc)( FT_AutoHinter hinter,
void* global );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalResetFunc
*
* @description:
* This function is used to recompute the global metrics in a given font.
* This is useful when global font data changes (e.g. Multiple Masters
* fonts where blend coordinates change).
*
* @input:
* hinter ::
* A handle to the source auto-hinter.
*
* face ::
* A handle to the face.
*/
typedef void
(*FT_AutoHinter_GlobalResetFunc)( FT_AutoHinter hinter,
FT_Face face );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlyphLoadFunc
*
* @description:
* This function is used to load, scale, and automatically hint a glyph
* from a given face.
*
* @input:
* face ::
* A handle to the face.
*
* glyph_index ::
* The glyph index.
*
* load_flags ::
* The load flags.
*
* @note:
* This function is capable of loading composite glyphs by hinting each
* sub-glyph independently (which improves quality).
*
* It will call the font driver with @FT_Load_Glyph, with
* @FT_LOAD_NO_SCALE set.
*/
typedef FT_Error
(*FT_AutoHinter_GlyphLoadFunc)( FT_AutoHinter hinter,
FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags );
/**************************************************************************
*
* @struct:
* FT_AutoHinter_InterfaceRec
*
* @description:
* The auto-hinter module's interface.
*/
typedef struct FT_AutoHinter_InterfaceRec_
{
FT_AutoHinter_GlobalResetFunc reset_face;
FT_AutoHinter_GlobalGetFunc get_global_hints;
FT_AutoHinter_GlobalDoneFunc done_global_hints;
FT_AutoHinter_GlyphLoadFunc load_glyph;
} FT_AutoHinter_InterfaceRec, *FT_AutoHinter_Interface;
#define FT_DECLARE_AUTOHINTER_INTERFACE( class_ ) \
FT_CALLBACK_TABLE const FT_AutoHinter_InterfaceRec class_;
#define FT_DEFINE_AUTOHINTER_INTERFACE( \
class_, \
reset_face_, \
get_global_hints_, \
done_global_hints_, \
load_glyph_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_AutoHinter_InterfaceRec class_ = \
{ \
reset_face_, \
get_global_hints_, \
done_global_hints_, \
load_glyph_ \
};
FT_END_HEADER
#endif /* AUTOHINT_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/autohint.h
|
C++
|
gpl-3.0
| 7,498
|
/****************************************************************************
*
* cffotypes.h
*
* Basic OpenType/CFF object type definitions (specification).
*
* Copyright (C) 2017-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef CFFOTYPES_H_
#define CFFOTYPES_H_
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/cfftypes.h>
#include <freetype/internal/tttypes.h>
#include <freetype/internal/services/svpscmap.h>
#include <freetype/internal/pshints.h>
FT_BEGIN_HEADER
typedef TT_Face CFF_Face;
/**************************************************************************
*
* @type:
* CFF_Size
*
* @description:
* A handle to an OpenType size object.
*/
typedef struct CFF_SizeRec_
{
FT_SizeRec root;
FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */
} CFF_SizeRec, *CFF_Size;
/**************************************************************************
*
* @type:
* CFF_GlyphSlot
*
* @description:
* A handle to an OpenType glyph slot object.
*/
typedef struct CFF_GlyphSlotRec_
{
FT_GlyphSlotRec root;
FT_Bool hint;
FT_Bool scaled;
FT_Fixed x_scale;
FT_Fixed y_scale;
} CFF_GlyphSlotRec, *CFF_GlyphSlot;
/**************************************************************************
*
* @type:
* CFF_Internal
*
* @description:
* The interface to the 'internal' field of `FT_Size`.
*/
typedef struct CFF_InternalRec_
{
PSH_Globals topfont;
PSH_Globals subfonts[CFF_MAX_CID_FONTS];
} CFF_InternalRec, *CFF_Internal;
/**************************************************************************
*
* Subglyph transformation record.
*/
typedef struct CFF_Transform_
{
FT_Fixed xx, xy; /* transformation matrix coefficients */
FT_Fixed yx, yy;
FT_F26Dot6 ox, oy; /* offsets */
} CFF_Transform;
FT_END_HEADER
#endif /* CFFOTYPES_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/cffotypes.h
|
C++
|
gpl-3.0
| 2,354
|
/****************************************************************************
*
* cfftypes.h
*
* Basic OpenType/CFF type definitions and interface (specification
* only).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef CFFTYPES_H_
#define CFFTYPES_H_
#include <freetype/freetype.h>
#include <freetype/t1tables.h>
#include <freetype/internal/ftserv.h>
#include <freetype/internal/services/svpscmap.h>
#include <freetype/internal/pshints.h>
#include <freetype/internal/t1types.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @struct:
* CFF_IndexRec
*
* @description:
* A structure used to model a CFF Index table.
*
* @fields:
* stream ::
* The source input stream.
*
* start ::
* The position of the first index byte in the input stream.
*
* count ::
* The number of elements in the index.
*
* off_size ::
* The size in bytes of object offsets in index.
*
* data_offset ::
* The position of first data byte in the index's bytes.
*
* data_size ::
* The size of the data table in this index.
*
* offsets ::
* A table of element offsets in the index. Must be loaded explicitly.
*
* bytes ::
* If the index is loaded in memory, its bytes.
*/
typedef struct CFF_IndexRec_
{
FT_Stream stream;
FT_ULong start;
FT_UInt hdr_size;
FT_UInt count;
FT_Byte off_size;
FT_ULong data_offset;
FT_ULong data_size;
FT_ULong* offsets;
FT_Byte* bytes;
} CFF_IndexRec, *CFF_Index;
typedef struct CFF_EncodingRec_
{
FT_UInt format;
FT_ULong offset;
FT_UInt count;
FT_UShort sids [256]; /* avoid dynamic allocations */
FT_UShort codes[256];
} CFF_EncodingRec, *CFF_Encoding;
typedef struct CFF_CharsetRec_
{
FT_UInt format;
FT_ULong offset;
FT_UShort* sids;
FT_UShort* cids; /* the inverse mapping of `sids'; only needed */
/* for CID-keyed fonts */
FT_UInt max_cid;
FT_UInt num_glyphs;
} CFF_CharsetRec, *CFF_Charset;
/* cf. similar fields in file `ttgxvar.h' from the `truetype' module */
typedef struct CFF_VarData_
{
#if 0
FT_UInt itemCount; /* not used; always zero */
FT_UInt shortDeltaCount; /* not used; always zero */
#endif
FT_UInt regionIdxCount; /* number of region indexes */
FT_UInt* regionIndices; /* array of `regionIdxCount' indices; */
/* these index `varRegionList' */
} CFF_VarData;
/* contribution of one axis to a region */
typedef struct CFF_AxisCoords_
{
FT_Fixed startCoord;
FT_Fixed peakCoord; /* zero peak means no effect (factor = 1) */
FT_Fixed endCoord;
} CFF_AxisCoords;
typedef struct CFF_VarRegion_
{
CFF_AxisCoords* axisList; /* array of axisCount records */
} CFF_VarRegion;
typedef struct CFF_VStoreRec_
{
FT_UInt dataCount;
CFF_VarData* varData; /* array of dataCount records */
/* vsindex indexes this array */
FT_UShort axisCount;
FT_UInt regionCount; /* total number of regions defined */
CFF_VarRegion* varRegionList;
} CFF_VStoreRec, *CFF_VStore;
/* forward reference */
typedef struct CFF_FontRec_* CFF_Font;
/* This object manages one cached blend vector. */
/* */
/* There is a BlendRec for Private DICT parsing in each subfont */
/* and a BlendRec for charstrings in CF2_Font instance data. */
/* A cached BV may be used across DICTs or Charstrings if inputs */
/* have not changed. */
/* */
/* `usedBV' is reset at the start of each parse or charstring. */
/* vsindex cannot be changed after a BV is used. */
/* */
/* Note: NDV is long (32/64 bit), while BV is 16.16 (FT_Int32). */
typedef struct CFF_BlendRec_
{
FT_Bool builtBV; /* blendV has been built */
FT_Bool usedBV; /* blendV has been used */
CFF_Font font; /* top level font struct */
FT_UInt lastVsindex; /* last vsindex used */
FT_UInt lenNDV; /* normDV length (aka numAxes) */
FT_Fixed* lastNDV; /* last NDV used */
FT_UInt lenBV; /* BlendV length (aka numMasters) */
FT_Int32* BV; /* current blendV (per DICT/glyph) */
} CFF_BlendRec, *CFF_Blend;
typedef struct CFF_FontRecDictRec_
{
FT_UInt version;
FT_UInt notice;
FT_UInt copyright;
FT_UInt full_name;
FT_UInt family_name;
FT_UInt weight;
FT_Bool is_fixed_pitch;
FT_Fixed italic_angle;
FT_Fixed underline_position;
FT_Fixed underline_thickness;
FT_Int paint_type;
FT_Int charstring_type;
FT_Matrix font_matrix;
FT_Bool has_font_matrix;
FT_ULong units_per_em; /* temporarily used as scaling value also */
FT_Vector font_offset;
FT_ULong unique_id;
FT_BBox font_bbox;
FT_Pos stroke_width;
FT_ULong charset_offset;
FT_ULong encoding_offset;
FT_ULong charstrings_offset;
FT_ULong private_offset;
FT_ULong private_size;
FT_Long synthetic_base;
FT_UInt embedded_postscript;
/* these should only be used for the top-level font dictionary */
FT_UInt cid_registry;
FT_UInt cid_ordering;
FT_Long cid_supplement;
FT_Long cid_font_version;
FT_Long cid_font_revision;
FT_Long cid_font_type;
FT_ULong cid_count;
FT_ULong cid_uid_base;
FT_ULong cid_fd_array_offset;
FT_ULong cid_fd_select_offset;
FT_UInt cid_font_name;
/* the next fields come from the data of the deprecated */
/* `MultipleMaster' operator; they are needed to parse the (also */
/* deprecated) `blend' operator in Type 2 charstrings */
FT_UShort num_designs;
FT_UShort num_axes;
/* fields for CFF2 */
FT_ULong vstore_offset;
FT_UInt maxstack;
} CFF_FontRecDictRec, *CFF_FontRecDict;
/* forward reference */
typedef struct CFF_SubFontRec_* CFF_SubFont;
typedef struct CFF_PrivateRec_
{
FT_Byte num_blue_values;
FT_Byte num_other_blues;
FT_Byte num_family_blues;
FT_Byte num_family_other_blues;
FT_Pos blue_values[14];
FT_Pos other_blues[10];
FT_Pos family_blues[14];
FT_Pos family_other_blues[10];
FT_Fixed blue_scale;
FT_Pos blue_shift;
FT_Pos blue_fuzz;
FT_Pos standard_width;
FT_Pos standard_height;
FT_Byte num_snap_widths;
FT_Byte num_snap_heights;
FT_Pos snap_widths[13];
FT_Pos snap_heights[13];
FT_Bool force_bold;
FT_Fixed force_bold_threshold;
FT_Int lenIV;
FT_Int language_group;
FT_Fixed expansion_factor;
FT_Long initial_random_seed;
FT_ULong local_subrs_offset;
FT_Pos default_width;
FT_Pos nominal_width;
/* fields for CFF2 */
FT_UInt vsindex;
CFF_SubFont subfont;
} CFF_PrivateRec, *CFF_Private;
typedef struct CFF_FDSelectRec_
{
FT_Byte format;
FT_UInt range_count;
/* that's the table, taken from the file `as is' */
FT_Byte* data;
FT_UInt data_size;
/* small cache for format 3 only */
FT_UInt cache_first;
FT_UInt cache_count;
FT_Byte cache_fd;
} CFF_FDSelectRec, *CFF_FDSelect;
/* A SubFont packs a font dict and a private dict together. They are */
/* needed to support CID-keyed CFF fonts. */
typedef struct CFF_SubFontRec_
{
CFF_FontRecDictRec font_dict;
CFF_PrivateRec private_dict;
/* fields for CFF2 */
CFF_BlendRec blend; /* current blend vector */
FT_UInt lenNDV; /* current length NDV or zero */
FT_Fixed* NDV; /* ptr to current NDV or NULL */
/* `blend_stack' is a writable buffer to hold blend results. */
/* This buffer is to the side of the normal cff parser stack; */
/* `cff_parse_blend' and `cff_blend_doBlend' push blend results here. */
/* The normal stack then points to these values instead of the DICT */
/* because all other operators in Private DICT clear the stack. */
/* `blend_stack' could be cleared at each operator other than blend. */
/* Blended values are stored as 5-byte fixed point values. */
FT_Byte* blend_stack; /* base of stack allocation */
FT_Byte* blend_top; /* first empty slot */
FT_UInt blend_used; /* number of bytes in use */
FT_UInt blend_alloc; /* number of bytes allocated */
CFF_IndexRec local_subrs_index;
FT_Byte** local_subrs; /* array of pointers */
/* into Local Subrs INDEX data */
FT_UInt32 random;
} CFF_SubFontRec;
#define CFF_MAX_CID_FONTS 256
typedef struct CFF_FontRec_
{
FT_Library library;
FT_Stream stream;
FT_Memory memory; /* TODO: take this from stream->memory? */
FT_ULong base_offset; /* offset to start of CFF */
FT_UInt num_faces;
FT_UInt num_glyphs;
FT_Byte version_major;
FT_Byte version_minor;
FT_Byte header_size;
FT_UInt top_dict_length; /* cff2 only */
FT_Bool cff2;
CFF_IndexRec name_index;
CFF_IndexRec top_dict_index;
CFF_IndexRec global_subrs_index;
CFF_EncodingRec encoding;
CFF_CharsetRec charset;
CFF_IndexRec charstrings_index;
CFF_IndexRec font_dict_index;
CFF_IndexRec private_index;
CFF_IndexRec local_subrs_index;
FT_String* font_name;
/* array of pointers into Global Subrs INDEX data */
FT_Byte** global_subrs;
/* array of pointers into String INDEX data stored at string_pool */
FT_UInt num_strings;
FT_Byte** strings;
FT_Byte* string_pool;
FT_ULong string_pool_size;
CFF_SubFontRec top_font;
FT_UInt num_subfonts;
CFF_SubFont subfonts[CFF_MAX_CID_FONTS];
CFF_FDSelectRec fd_select;
/* interface to PostScript hinter */
PSHinter_Service pshinter;
/* interface to Postscript Names service */
FT_Service_PsCMaps psnames;
/* interface to CFFLoad service */
const void* cffload;
/* since version 2.3.0 */
PS_FontInfoRec* font_info; /* font info dictionary */
/* since version 2.3.6 */
FT_String* registry;
FT_String* ordering;
/* since version 2.4.12 */
FT_Generic cf2_instance;
/* since version 2.7.1 */
CFF_VStoreRec vstore; /* parsed vstore structure */
/* since version 2.9 */
PS_FontExtraRec* font_extra;
} CFF_FontRec;
FT_END_HEADER
#endif /* CFFTYPES_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/cfftypes.h
|
C++
|
gpl-3.0
| 11,866
|
/****************************************************************************
*
* internal/compiler-macros.h
*
* Compiler-specific macro definitions used internally by FreeType.
*
* Copyright (C) 2020-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef INTERNAL_COMPILER_MACROS_H_
#define INTERNAL_COMPILER_MACROS_H_
#include <freetype/config/public-macros.h>
FT_BEGIN_HEADER
/* Fix compiler warning with sgi compiler. */
#if defined( __sgi ) && !defined( __GNUC__ )
# if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
# pragma set woff 3505
# endif
#endif
/* Fix compiler warning with sgi compiler. */
#if defined( __sgi ) && !defined( __GNUC__ )
# if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
# pragma set woff 3505
# endif
#endif
/*
* When defining a macro that expands to a non-trivial C statement, use
* FT_BEGIN_STMNT and FT_END_STMNT to enclose the macro's body. This
* ensures there are no surprises when the macro is invoked in conditional
* branches.
*
* Example:
*
* #define LOG( ... ) \
* FT_BEGIN_STMNT \
* if ( logging_enabled ) \
* log( __VA_ARGS__ ); \
* FT_END_STMNT
*/
#define FT_BEGIN_STMNT do {
#define FT_END_STMNT } while ( 0 )
/*
* FT_DUMMY_STMNT expands to an empty C statement. Useful for
* conditionally defined statement macros.
*
* Example:
*
* #ifdef BUILD_CONFIG_LOGGING
* #define LOG( ... ) \
* FT_BEGIN_STMNT \
* if ( logging_enabled ) \
* log( __VA_ARGS__ ); \
* FT_END_STMNT
* #else
* # define LOG( ... ) FT_DUMMY_STMNT
* #endif
*/
#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
#ifdef __UINTPTR_TYPE__
/*
* GCC and Clang both provide a `__UINTPTR_TYPE__` that can be used to
* avoid a dependency on `stdint.h`.
*/
# define FT_UINT_TO_POINTER( x ) (void *)(__UINTPTR_TYPE__)(x)
#elif defined( _WIN64 )
/* only 64bit Windows uses the LLP64 data model, i.e., */
/* 32-bit integers, 64-bit pointers. */
# define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x)
#else
# define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x)
#endif
/*
* Use `FT_TYPEOF( type )` to cast a value to `type`. This is useful to
* suppress signedness compilation warnings in macros.
*
* Example:
*
* #define PAD_( x, n ) ( (x) & ~FT_TYPEOF( x )( (n) - 1 ) )
*
* (The `typeof` condition is taken from gnulib's `intprops.h` header
* file.)
*/
#if ( ( defined( __GNUC__ ) && __GNUC__ >= 2 ) || \
( defined( __IBMC__ ) && __IBMC__ >= 1210 && \
defined( __IBM__TYPEOF__ ) ) || \
( defined( __SUNPRO_C ) && __SUNPRO_C >= 0x5110 && !__STDC__ ) )
#define FT_TYPEOF( type ) ( __typeof__ ( type ) )
#else
#define FT_TYPEOF( type ) /* empty */
#endif
/*
* Mark a function declaration as internal to the library. This ensures
* that it will not be exposed by default to client code, and helps
* generate smaller and faster code on ELF-based platforms. Place this
* before a function declaration.
*/
/* Visual C, mingw */
#if defined( _WIN32 )
#define FT_INTERNAL_FUNCTION_ATTRIBUTE /* empty */
/* gcc, clang */
#elif ( defined( __GNUC__ ) && __GNUC__ >= 4 ) || defined( __clang__ )
#define FT_INTERNAL_FUNCTION_ATTRIBUTE \
__attribute__(( visibility( "hidden" ) ))
/* Sun */
#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
#define FT_INTERNAL_FUNCTION_ATTRIBUTE __hidden
#else
#define FT_INTERNAL_FUNCTION_ATTRIBUTE /* empty */
#endif
/*
* FreeType supports compilation of its C sources with a C++ compiler (in
* C++ mode); this introduces a number of subtle issues.
*
* The main one is that a C++ function declaration and its definition must
* have the same 'linkage'. Because all FreeType headers declare their
* functions with C linkage (i.e., within an `extern "C" { ... }` block
* due to the magic of FT_BEGIN_HEADER and FT_END_HEADER), their
* definition in FreeType sources should also be prefixed with `extern
* "C"` when compiled in C++ mode.
*
* The `FT_FUNCTION_DECLARATION` and `FT_FUNCTION_DEFINITION` macros are
* provided to deal with this case, as well as `FT_CALLBACK_DEF` and its
* siblings below.
*/
/*
* `FT_FUNCTION_DECLARATION( type )` can be used to write a C function
* declaration to ensure it will have C linkage when the library is built
* with a C++ compiler. The parameter is the function's return type, so a
* declaration would look like
*
* FT_FUNCTION_DECLARATION( int )
* foo( int x );
*
* NOTE: This requires that all uses are inside of `FT_BEGIN_HEADER ...
* FT_END_HEADER` blocks, which guarantees that the declarations have C
* linkage when the headers are included by C++ sources.
*
* NOTE: Do not use directly. Use `FT_LOCAL`, `FT_BASE`, and `FT_EXPORT`
* instead.
*/
#define FT_FUNCTION_DECLARATION( x ) extern x
/*
* Same as `FT_FUNCTION_DECLARATION`, but for function definitions instead.
*
* NOTE: Do not use directly. Use `FT_LOCAL_DEF`, `FT_BASE_DEF`, and
* `FT_EXPORT_DEF` instead.
*/
#ifdef __cplusplus
#define FT_FUNCTION_DEFINITION( x ) extern "C" x
#else
#define FT_FUNCTION_DEFINITION( x ) x
#endif
/*
* Use `FT_LOCAL` and `FT_LOCAL_DEF` to declare and define, respectively,
* an internal FreeType function that is only used by the sources of a
* single `src/module/` directory. This ensures that the functions are
* turned into static ones at build time, resulting in smaller and faster
* code.
*/
#ifdef FT_MAKE_OPTION_SINGLE_OBJECT
#define FT_LOCAL( x ) static x
#define FT_LOCAL_DEF( x ) static x
#else
#define FT_LOCAL( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
FT_FUNCTION_DECLARATION( x )
#define FT_LOCAL_DEF( x ) FT_FUNCTION_DEFINITION( x )
#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
/*
* Use `FT_LOCAL_ARRAY` and `FT_LOCAL_ARRAY_DEF` to declare and define,
* respectively, a constant array that must be accessed from several
* sources in the same `src/module/` sub-directory, and which are internal
* to the library.
*/
#define FT_LOCAL_ARRAY( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
extern const x
#define FT_LOCAL_ARRAY_DEF( x ) FT_FUNCTION_DEFINITION( const x )
/*
* `Use FT_BASE` and `FT_BASE_DEF` to declare and define, respectively, an
* internal library function that is used by more than a single module.
*/
#define FT_BASE( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
FT_FUNCTION_DECLARATION( x )
#define FT_BASE_DEF( x ) FT_FUNCTION_DEFINITION( x )
/*
* NOTE: Conditionally define `FT_EXPORT_VAR` due to its definition in
* `src/smooth/ftgrays.h` to make the header more portable.
*/
#ifndef FT_EXPORT_VAR
#define FT_EXPORT_VAR( x ) FT_FUNCTION_DECLARATION( x )
#endif
/*
* When compiling FreeType as a DLL or DSO with hidden visibility,
* some systems/compilers need a special attribute in front OR after
* the return type of function declarations.
*
* Two macros are used within the FreeType source code to define
* exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`.
*
* - `FT_EXPORT( return_type )`
*
* is used in a function declaration, as in
*
* ```
* FT_EXPORT( FT_Error )
* FT_Init_FreeType( FT_Library* alibrary );
* ```
*
* - `FT_EXPORT_DEF( return_type )`
*
* is used in a function definition, as in
*
* ```
* FT_EXPORT_DEF( FT_Error )
* FT_Init_FreeType( FT_Library* alibrary )
* {
* ... some code ...
* return FT_Err_Ok;
* }
* ```
*
* You can provide your own implementation of `FT_EXPORT` and
* `FT_EXPORT_DEF` here if you want.
*
* To export a variable, use `FT_EXPORT_VAR`.
*/
/* See `freetype/config/compiler_macros.h` for the `FT_EXPORT` definition */
#define FT_EXPORT_DEF( x ) FT_FUNCTION_DEFINITION( x )
/*
* The following macros are needed to compile the library with a
* C++ compiler and with 16bit compilers.
*/
/*
* This is special. Within C++, you must specify `extern "C"` for
* functions which are used via function pointers, and you also
* must do that for structures which contain function pointers to
* assure C linkage -- it's not possible to have (local) anonymous
* functions which are accessed by (global) function pointers.
*
*
* FT_CALLBACK_DEF is used to _define_ a callback function,
* located in the same source code file as the structure that uses
* it. FT_COMPARE_DEF, in addition, ensures the `cdecl` calling
* convention on x86, required by the C library function `qsort`.
*
* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare
* and define a callback function, respectively, in a similar way
* as FT_BASE and FT_BASE_DEF work.
*
* FT_CALLBACK_TABLE is used to _declare_ a constant variable that
* contains pointers to callback functions.
*
* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable
* that contains pointers to callback functions.
*
*
* Some 16bit compilers have to redefine these macros to insert
* the infamous `_cdecl` or `__fastcall` declarations.
*/
#ifdef __cplusplus
#define FT_CALLBACK_DEF( x ) extern "C" x
#else
#define FT_CALLBACK_DEF( x ) static x
#endif
#if defined( __GNUC__ ) && defined( __i386__ )
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __attribute__(( cdecl ))
#elif defined( _MSC_VER ) && defined( _M_IX86 )
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __cdecl
#elif defined( __WATCOMC__ ) && __WATCOMC__ >= 1240
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __watcall
#else
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x )
#endif
#define FT_BASE_CALLBACK( x ) FT_FUNCTION_DECLARATION( x )
#define FT_BASE_CALLBACK_DEF( x ) FT_FUNCTION_DEFINITION( x )
#ifndef FT_CALLBACK_TABLE
#ifdef __cplusplus
#define FT_CALLBACK_TABLE extern "C"
#define FT_CALLBACK_TABLE_DEF extern "C"
#else
#define FT_CALLBACK_TABLE extern
#define FT_CALLBACK_TABLE_DEF /* nothing */
#endif
#endif /* FT_CALLBACK_TABLE */
FT_END_HEADER
#endif /* INTERNAL_COMPILER_MACROS_H_ */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/compiler-macros.h
|
C++
|
gpl-3.0
| 10,834
|
/****************************************************************************
*
* ftcalc.h
*
* Arithmetic computations (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCALC_H_
#define FTCALC_H_
#include <freetype/freetype.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* FT_MulDiv() and FT_MulFix() are declared in freetype.h.
*
*/
#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
/* Provide assembler fragments for performance-critical functions. */
/* These must be defined `static __inline__' with GCC. */
#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
static __inline FT_Int32
FT_MulFix_arm( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 t, t2;
__asm
{
smull t2, t, b, a /* (lo=t2,hi=t) = a*b */
mov a, t, asr #31 /* a = (hi >> 31) */
add a, a, #0x8000 /* a += 0x8000 */
adds t2, t2, a /* t2 += a */
adc t, t, #0 /* t += carry */
mov a, t2, lsr #16 /* a = t2 >> 16 */
orr a, a, t, lsl #16 /* a |= t << 16 */
}
return a;
}
#endif /* __CC_ARM || __ARMCC__ */
#ifdef __GNUC__
#if defined( __arm__ ) && \
( !defined( __thumb__ ) || defined( __thumb2__ ) ) && \
!( defined( __CC_ARM ) || defined( __ARMCC__ ) )
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
static __inline__ FT_Int32
FT_MulFix_arm( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 t, t2;
__asm__ __volatile__ (
"smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
"mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
#if defined( __clang__ ) && defined( __thumb2__ )
"add.w %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
#else
"add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
#endif
"adds %1, %1, %0\n\t" /* %1 += %0 */
"adc %2, %2, #0\n\t" /* %2 += carry */
"mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */
"orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */
: "=r"(a), "=&r"(t2), "=&r"(t)
: "r"(a), "r"(b)
: "cc" );
return a;
}
#endif /* __arm__ && */
/* ( __thumb2__ || !__thumb__ ) && */
/* !( __CC_ARM || __ARMCC__ ) */
#if defined( __i386__ )
#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
/* documentation is in freetype.h */
static __inline__ FT_Int32
FT_MulFix_i386( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 result;
__asm__ __volatile__ (
"imul %%edx\n"
"movl %%edx, %%ecx\n"
"sarl $31, %%ecx\n"
"addl $0x8000, %%ecx\n"
"addl %%ecx, %%eax\n"
"adcl $0, %%edx\n"
"shrl $16, %%eax\n"
"shll $16, %%edx\n"
"addl %%edx, %%eax\n"
: "=a"(result), "=d"(b)
: "a"(a), "d"(b)
: "%ecx", "cc" );
return result;
}
#endif /* i386 */
#endif /* __GNUC__ */
#ifdef _MSC_VER /* Visual C++ */
#ifdef _M_IX86
#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
/* documentation is in freetype.h */
static __inline FT_Int32
FT_MulFix_i386( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 result;
__asm
{
mov eax, a
mov edx, b
imul edx
mov ecx, edx
sar ecx, 31
add ecx, 8000h
add eax, ecx
adc edx, 0
shr eax, 16
shl edx, 16
add eax, edx
mov result, eax
}
return result;
}
#endif /* _M_IX86 */
#endif /* _MSC_VER */
#if defined( __GNUC__ ) && defined( __x86_64__ )
#define FT_MULFIX_ASSEMBLER FT_MulFix_x86_64
static __inline__ FT_Int32
FT_MulFix_x86_64( FT_Int32 a,
FT_Int32 b )
{
/* Temporarily disable the warning that C90 doesn't support */
/* `long long'. */
#if __GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 6 )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wlong-long"
#endif
#if 1
/* Technically not an assembly fragment, but GCC does a really good */
/* job at inlining it and generating good machine code for it. */
long long ret, tmp;
ret = (long long)a * b;
tmp = ret >> 63;
ret += 0x8000 + tmp;
return (FT_Int32)( ret >> 16 );
#else
/* For some reason, GCC 4.6 on Ubuntu 12.04 generates invalid machine */
/* code from the lines below. The main issue is that `wide_a' is not */
/* properly initialized by sign-extending `a'. Instead, the generated */
/* machine code assumes that the register that contains `a' on input */
/* can be used directly as a 64-bit value, which is wrong most of the */
/* time. */
long long wide_a = (long long)a;
long long wide_b = (long long)b;
long long result;
__asm__ __volatile__ (
"imul %2, %1\n"
"mov %1, %0\n"
"sar $63, %0\n"
"lea 0x8000(%1, %0), %0\n"
"sar $16, %0\n"
: "=&r"(result), "=&r"(wide_a)
: "r"(wide_b)
: "cc" );
return (FT_Int32)result;
#endif
#if __GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 6 )
#pragma GCC diagnostic pop
#endif
}
#endif /* __GNUC__ && __x86_64__ */
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
#ifdef FT_CONFIG_OPTION_INLINE_MULFIX
#ifdef FT_MULFIX_ASSEMBLER
#define FT_MulFix( a, b ) FT_MULFIX_ASSEMBLER( (FT_Int32)(a), (FT_Int32)(b) )
#endif
#endif
/**************************************************************************
*
* @function:
* FT_MulDiv_No_Round
*
* @description:
* A very simple function used to perform the computation '(a*b)/c'
* (without rounding) with maximum accuracy (it uses a 64-bit
* intermediate integer whenever necessary).
*
* This function isn't necessarily as fast as some processor-specific
* operations, but is at least completely portable.
*
* @input:
* a ::
* The first multiplier.
* b ::
* The second multiplier.
* c ::
* The divisor.
*
* @return:
* The result of '(a*b)/c'. This function never traps when trying to
* divide by zero; it simply returns 'MaxInt' or 'MinInt' depending on
* the signs of 'a' and 'b'.
*/
FT_BASE( FT_Long )
FT_MulDiv_No_Round( FT_Long a,
FT_Long b,
FT_Long c );
/*
* A variant of FT_Matrix_Multiply which scales its result afterwards. The
* idea is that both `a' and `b' are scaled by factors of 10 so that the
* values are as precise as possible to get a correct result during the
* 64bit multiplication. Let `sa' and `sb' be the scaling factors of `a'
* and `b', respectively, then the scaling factor of the result is `sa*sb'.
*/
FT_BASE( void )
FT_Matrix_Multiply_Scaled( const FT_Matrix* a,
FT_Matrix *b,
FT_Long scaling );
/*
* Check a matrix. If the transformation would lead to extreme shear or
* extreme scaling, for example, return 0. If everything is OK, return 1.
*
* Based on geometric considerations we use the following inequality to
* identify a degenerate matrix.
*
* 50 * abs(xx*yy - xy*yx) < xx^2 + xy^2 + yx^2 + yy^2
*
* Value 50 is heuristic.
*/
FT_BASE( FT_Bool )
FT_Matrix_Check( const FT_Matrix* matrix );
/*
* A variant of FT_Vector_Transform. See comments for
* FT_Matrix_Multiply_Scaled.
*/
FT_BASE( void )
FT_Vector_Transform_Scaled( FT_Vector* vector,
const FT_Matrix* matrix,
FT_Long scaling );
/*
* This function normalizes a vector and returns its original length. The
* normalized vector is a 16.16 fixed-point unit vector with length close
* to 0x10000. The accuracy of the returned length is limited to 16 bits
* also. The function utilizes quick inverse square root approximation
* without divisions and square roots relying on Newton's iterations
* instead.
*/
FT_BASE( FT_UInt32 )
FT_Vector_NormLen( FT_Vector* vector );
/*
* Return -1, 0, or +1, depending on the orientation of a given corner. We
* use the Cartesian coordinate system, with positive vertical values going
* upwards. The function returns +1 if the corner turns to the left, -1 to
* the right, and 0 for undecidable cases.
*/
FT_BASE( FT_Int )
ft_corner_orientation( FT_Pos in_x,
FT_Pos in_y,
FT_Pos out_x,
FT_Pos out_y );
/*
* Return TRUE if a corner is flat or nearly flat. This is equivalent to
* saying that the corner point is close to its neighbors, or inside an
* ellipse defined by the neighbor focal points to be more precise.
*/
FT_BASE( FT_Int )
ft_corner_is_flat( FT_Pos in_x,
FT_Pos in_y,
FT_Pos out_x,
FT_Pos out_y );
/*
* Return the most significant bit index.
*/
#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
#if defined( __clang__ ) || ( defined( __GNUC__ ) && \
( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) ) )
#if FT_SIZEOF_INT == 4
#define FT_MSB( x ) ( 31 - __builtin_clz( x ) )
#elif FT_SIZEOF_LONG == 4
#define FT_MSB( x ) ( 31 - __builtin_clzl( x ) )
#endif
#elif defined( _MSC_VER ) && _MSC_VER >= 1400
#if defined( _WIN32_WCE )
#include <cmnintrin.h>
#pragma intrinsic( _CountLeadingZeros )
#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
#elif defined( _M_ARM64 ) || defined( _M_ARM )
#include <intrin.h>
#pragma intrinsic( _CountLeadingZeros )
#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
#elif defined( _M_IX86 ) || defined( _M_AMD64 ) || defined( _M_IA64 )
#include <intrin.h>
#pragma intrinsic( _BitScanReverse )
static __inline FT_Int32
FT_MSB_i386( FT_UInt32 x )
{
unsigned long where;
_BitScanReverse( &where, x );
return (FT_Int32)where;
}
#define FT_MSB( x ) FT_MSB_i386( x )
#endif
#elif defined( __WATCOMC__ ) && defined( __386__ )
extern __inline FT_Int32
FT_MSB_i386( FT_UInt32 x );
#pragma aux FT_MSB_i386 = \
"bsr eax, eax" \
parm [eax] nomemory \
value [eax] \
modify exact [eax] nomemory;
#define FT_MSB( x ) FT_MSB_i386( x )
#elif defined( __DECC ) || defined( __DECCXX )
#include <builtins.h>
#define FT_MSB( x ) (FT_Int)( 63 - _leadz( x ) )
#elif defined( _CRAYC )
#include <intrinsics.h>
#define FT_MSB( x ) (FT_Int)( 31 - _leadz32( x ) )
#endif /* FT_MSB macro definitions */
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
#ifndef FT_MSB
FT_BASE( FT_Int )
FT_MSB( FT_UInt32 z );
#endif
/*
* Return sqrt(x*x+y*y), which is the same as `FT_Vector_Length' but uses
* two fixed-point arguments instead.
*/
FT_BASE( FT_Fixed )
FT_Hypot( FT_Fixed x,
FT_Fixed y );
#if 0
/**************************************************************************
*
* @function:
* FT_SqrtFixed
*
* @description:
* Computes the square root of a 16.16 fixed-point value.
*
* @input:
* x ::
* The value to compute the root for.
*
* @return:
* The result of 'sqrt(x)'.
*
* @note:
* This function is not very fast.
*/
FT_BASE( FT_Int32 )
FT_SqrtFixed( FT_Int32 x );
#endif /* 0 */
#define INT_TO_F26DOT6( x ) ( (FT_Long)(x) * 64 ) /* << 6 */
#define INT_TO_F2DOT14( x ) ( (FT_Long)(x) * 16384 ) /* << 14 */
#define INT_TO_FIXED( x ) ( (FT_Long)(x) * 65536 ) /* << 16 */
#define F2DOT14_TO_FIXED( x ) ( (FT_Long)(x) * 4 ) /* << 2 */
#define FIXED_TO_INT( x ) ( FT_RoundFix( x ) >> 16 )
#define ROUND_F26DOT6( x ) ( ( (x) + 32 - ( x < 0 ) ) & -64 )
/*
* The following macros have two purposes.
*
* - Tag places where overflow is expected and harmless.
*
* - Avoid run-time sanitizer errors.
*
* Use with care!
*/
#define ADD_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) + (FT_UInt)(b) )
#define SUB_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) - (FT_UInt)(b) )
#define MUL_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) * (FT_UInt)(b) )
#define NEG_INT( a ) \
(FT_Int)( (FT_UInt)0 - (FT_UInt)(a) )
#define ADD_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) + (FT_ULong)(b) )
#define SUB_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) - (FT_ULong)(b) )
#define MUL_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) * (FT_ULong)(b) )
#define NEG_LONG( a ) \
(FT_Long)( (FT_ULong)0 - (FT_ULong)(a) )
#define ADD_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) + (FT_UInt32)(b) )
#define SUB_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) - (FT_UInt32)(b) )
#define MUL_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) * (FT_UInt32)(b) )
#define NEG_INT32( a ) \
(FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) )
#ifdef FT_INT64
#define ADD_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) )
#define SUB_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) - (FT_UInt64)(b) )
#define MUL_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) * (FT_UInt64)(b) )
#define NEG_INT64( a ) \
(FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) )
#endif /* FT_INT64 */
FT_END_HEADER
#endif /* FTCALC_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftcalc.h
|
C++
|
gpl-3.0
| 14,551
|
/****************************************************************************
*
* ftdebug.h
*
* Debugging and logging component (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*
* IMPORTANT: A description of FreeType's debugging support can be
* found in 'docs/DEBUG.TXT'. Read it if you need to use or
* understand this code.
*
*/
#ifndef FTDEBUG_H_
#define FTDEBUG_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/freetype.h>
#include "compiler-macros.h"
#ifdef FT_DEBUG_LOGGING
#define DLG_STATIC
#include <dlg/output.h>
#include <dlg/dlg.h>
#include <freetype/ftlogging.h>
#endif /* FT_DEBUG_LOGGING */
FT_BEGIN_HEADER
/* force the definition of FT_DEBUG_LEVEL_TRACE if FT_DEBUG_LOGGING is */
/* already defined. */
/* */
#ifdef FT_DEBUG_LOGGING
#undef FT_DEBUG_LEVEL_TRACE
#define FT_DEBUG_LEVEL_TRACE
#endif
/* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */
/* is already defined; this simplifies the following #ifdefs */
/* */
#ifdef FT_DEBUG_LEVEL_TRACE
#undef FT_DEBUG_LEVEL_ERROR
#define FT_DEBUG_LEVEL_ERROR
#endif
/**************************************************************************
*
* Define the trace enums as well as the trace levels array when they are
* needed.
*
*/
#ifdef FT_DEBUG_LEVEL_TRACE
#define FT_TRACE_DEF( x ) trace_ ## x ,
/* defining the enumeration */
typedef enum FT_Trace_
{
#include <freetype/internal/fttrace.h>
trace_count
} FT_Trace;
/* a pointer to the array of trace levels, */
/* provided by `src/base/ftdebug.c' */
extern int* ft_trace_levels;
#undef FT_TRACE_DEF
#endif /* FT_DEBUG_LEVEL_TRACE */
/**************************************************************************
*
* Define the FT_TRACE macro
*
* IMPORTANT!
*
* Each component must define the macro FT_COMPONENT to a valid FT_Trace
* value before using any TRACE macro.
*
* To get consistent logging output, there should be no newline character
* (i.e., '\n') or a single trailing one in the message string of
* `FT_TRACEx` and `FT_ERROR`.
*/
/*************************************************************************
*
* If FT_DEBUG_LOGGING is enabled, tracing messages are sent to dlg's API.
* If FT_DEBUG_LOGGING is disabled, tracing messages are sent to
* `FT_Message` (defined in ftdebug.c).
*/
#ifdef FT_DEBUG_LOGGING
/* we need two macros to convert the names of `FT_COMPONENT` to a string */
#define FT_LOGGING_TAG( x ) FT_LOGGING_TAG_( x )
#define FT_LOGGING_TAG_( x ) #x
/* we need two macros to convert the component and the trace level */
/* to a string that combines them */
#define FT_LOGGING_TAGX( x, y ) FT_LOGGING_TAGX_( x, y )
#define FT_LOGGING_TAGX_( x, y ) #x ":" #y
#define FT_LOG( level, varformat ) \
do \
{ \
const char* dlg_tag = FT_LOGGING_TAGX( FT_COMPONENT, level ); \
\
\
ft_add_tag( dlg_tag ); \
if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
{ \
if ( custom_output_handler != NULL ) \
FT_Logging_Callback varformat; \
else \
dlg_trace varformat; \
} \
ft_remove_tag( dlg_tag ); \
} while( 0 )
#else /* !FT_DEBUG_LOGGING */
#define FT_LOG( level, varformat ) \
do \
{ \
if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
FT_Message varformat; \
} while ( 0 )
#endif /* !FT_DEBUG_LOGGING */
#ifdef FT_DEBUG_LEVEL_TRACE
/* we need two macros here to make cpp expand `FT_COMPONENT' */
#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x )
#define FT_TRACE_COMP_( x ) trace_ ## x
#define FT_TRACE( level, varformat ) FT_LOG( level, varformat )
#else /* !FT_DEBUG_LEVEL_TRACE */
#define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */
#endif /* !FT_DEBUG_LEVEL_TRACE */
/**************************************************************************
*
* @function:
* FT_Trace_Get_Count
*
* @description:
* Return the number of available trace components.
*
* @return:
* The number of trace components. 0 if FreeType 2 is not built with
* FT_DEBUG_LEVEL_TRACE definition.
*
* @note:
* This function may be useful if you want to access elements of the
* internal trace levels array by an index.
*/
FT_BASE( FT_Int )
FT_Trace_Get_Count( void );
/**************************************************************************
*
* @function:
* FT_Trace_Get_Name
*
* @description:
* Return the name of a trace component.
*
* @input:
* The index of the trace component.
*
* @return:
* The name of the trace component. This is a statically allocated
* C~string, so do not free it after use. `NULL` if FreeType is not
* built with FT_DEBUG_LEVEL_TRACE definition.
*
* @note:
* Use @FT_Trace_Get_Count to get the number of available trace
* components.
*/
FT_BASE( const char* )
FT_Trace_Get_Name( FT_Int idx );
/**************************************************************************
*
* @function:
* FT_Trace_Disable
*
* @description:
* Switch off tracing temporarily. It can be activated again with
* @FT_Trace_Enable.
*/
FT_BASE( void )
FT_Trace_Disable( void );
/**************************************************************************
*
* @function:
* FT_Trace_Enable
*
* @description:
* Activate tracing. Use it after tracing has been switched off with
* @FT_Trace_Disable.
*/
FT_BASE( void )
FT_Trace_Enable( void );
/**************************************************************************
*
* You need two opening and closing parentheses!
*
* Example: FT_TRACE0(( "Value is %i", foo ))
*
* Output of the FT_TRACEX macros is sent to stderr.
*
*/
#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat )
#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat )
#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat )
#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat )
#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat )
#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat )
#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat )
#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat )
/**************************************************************************
*
* Define the FT_ERROR macro.
*
* Output of this macro is sent to stderr.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
/**************************************************************************
*
* If FT_DEBUG_LOGGING is enabled, error messages are sent to dlg's API.
* If FT_DEBUG_LOGGING is disabled, error messages are sent to `FT_Message`
* (defined in ftdebug.c).
*
*/
#ifdef FT_DEBUG_LOGGING
#define FT_ERROR( varformat ) \
do \
{ \
const char* dlg_tag = FT_LOGGING_TAG( FT_COMPONENT ); \
\
\
ft_add_tag( dlg_tag ); \
dlg_trace varformat; \
ft_remove_tag( dlg_tag ); \
} while ( 0 )
#else /* !FT_DEBUG_LOGGING */
#define FT_ERROR( varformat ) FT_Message varformat
#endif /* !FT_DEBUG_LOGGING */
#else /* !FT_DEBUG_LEVEL_ERROR */
#define FT_ERROR( varformat ) do { } while ( 0 ) /* nothing */
#endif /* !FT_DEBUG_LEVEL_ERROR */
/**************************************************************************
*
* Define the FT_ASSERT and FT_THROW macros. The call to `FT_Throw` makes
* it possible to easily set a breakpoint at this function.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
#define FT_ASSERT( condition ) \
do \
{ \
if ( !( condition ) ) \
FT_Panic( "assertion failed on line %d of file %s\n", \
__LINE__, __FILE__ ); \
} while ( 0 )
#define FT_THROW( e ) \
( FT_Throw( FT_ERR_CAT( FT_ERR_PREFIX, e ), \
__LINE__, \
__FILE__ ) | \
FT_ERR_CAT( FT_ERR_PREFIX, e ) )
#else /* !FT_DEBUG_LEVEL_ERROR */
#define FT_ASSERT( condition ) do { } while ( 0 )
#define FT_THROW( e ) FT_ERR_CAT( FT_ERR_PREFIX, e )
#endif /* !FT_DEBUG_LEVEL_ERROR */
/**************************************************************************
*
* Define `FT_Message` and `FT_Panic` when needed.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
#include "stdio.h" /* for vfprintf() */
/* print a message */
FT_BASE( void )
FT_Message( const char* fmt,
... );
/* print a message and exit */
FT_BASE( void )
FT_Panic( const char* fmt,
... );
/* report file name and line number of an error */
FT_BASE( int )
FT_Throw( FT_Error error,
int line,
const char* file );
#endif /* FT_DEBUG_LEVEL_ERROR */
FT_BASE( void )
ft_debug_init( void );
#ifdef FT_DEBUG_LOGGING
/**************************************************************************
*
* 'dlg' uses output handlers to control how and where log messages are
* printed. Therefore we need to define a default output handler for
* FreeType.
*/
FT_BASE( void )
ft_log_handler( const struct dlg_origin* origin,
const char* string,
void* data );
/**************************************************************************
*
* 1. `ft_default_log_handler` stores the function pointer that is used
* internally by FreeType to print logs to a file.
*
* 2. `custom_output_handler` stores the function pointer to the callback
* function provided by the user.
*
* It is defined in `ftdebug.c`.
*/
extern dlg_handler ft_default_log_handler;
extern FT_Custom_Log_Handler custom_output_handler;
/**************************************************************************
*
* If FT_DEBUG_LOGGING macro is enabled, FreeType needs to initialize and
* un-initialize `FILE*`.
*
* These functions are defined in `ftdebug.c`.
*/
FT_BASE( void )
ft_logging_init( void );
FT_BASE( void )
ft_logging_deinit( void );
/**************************************************************************
*
* For printing the name of `FT_COMPONENT` along with the actual log we
* need to add a tag with the name of `FT_COMPONENT`.
*
* These functions are defined in `ftdebug.c`.
*/
FT_BASE( void )
ft_add_tag( const char* tag );
FT_BASE( void )
ft_remove_tag( const char* tag );
/**************************************************************************
*
* A function to print log data using a custom callback logging function
* (which is set using `FT_Set_Log_Handler`).
*
* This function is defined in `ftdebug.c`.
*/
FT_BASE( void )
FT_Logging_Callback( const char* fmt,
... );
#endif /* FT_DEBUG_LOGGING */
FT_END_HEADER
#endif /* FTDEBUG_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftdebug.h
|
C++
|
gpl-3.0
| 13,332
|
/****************************************************************************
*
* ftdrv.h
*
* FreeType internal font driver interface (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTDRV_H_
#define FTDRV_H_
#include <freetype/ftmodapi.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
typedef FT_Error
(*FT_Face_InitFunc)( FT_Stream stream,
FT_Face face,
FT_Int typeface_index,
FT_Int num_params,
FT_Parameter* parameters );
typedef void
(*FT_Face_DoneFunc)( FT_Face face );
typedef FT_Error
(*FT_Size_InitFunc)( FT_Size size );
typedef void
(*FT_Size_DoneFunc)( FT_Size size );
typedef FT_Error
(*FT_Slot_InitFunc)( FT_GlyphSlot slot );
typedef void
(*FT_Slot_DoneFunc)( FT_GlyphSlot slot );
typedef FT_Error
(*FT_Size_RequestFunc)( FT_Size size,
FT_Size_Request req );
typedef FT_Error
(*FT_Size_SelectFunc)( FT_Size size,
FT_ULong size_index );
typedef FT_Error
(*FT_Slot_LoadFunc)( FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags );
typedef FT_Error
(*FT_Face_GetKerningFunc)( FT_Face face,
FT_UInt left_glyph,
FT_UInt right_glyph,
FT_Vector* kerning );
typedef FT_Error
(*FT_Face_AttachFunc)( FT_Face face,
FT_Stream stream );
typedef FT_Error
(*FT_Face_GetAdvancesFunc)( FT_Face face,
FT_UInt first,
FT_UInt count,
FT_Int32 flags,
FT_Fixed* advances );
/**************************************************************************
*
* @struct:
* FT_Driver_ClassRec
*
* @description:
* The font driver class. This structure mostly contains pointers to
* driver methods.
*
* @fields:
* root ::
* The parent module.
*
* face_object_size ::
* The size of a face object in bytes.
*
* size_object_size ::
* The size of a size object in bytes.
*
* slot_object_size ::
* The size of a glyph object in bytes.
*
* init_face ::
* The format-specific face constructor.
*
* done_face ::
* The format-specific face destructor.
*
* init_size ::
* The format-specific size constructor.
*
* done_size ::
* The format-specific size destructor.
*
* init_slot ::
* The format-specific slot constructor.
*
* done_slot ::
* The format-specific slot destructor.
*
*
* load_glyph ::
* A function handle to load a glyph to a slot. This field is
* mandatory!
*
* get_kerning ::
* A function handle to return the unscaled kerning for a given pair of
* glyphs. Can be set to 0 if the format doesn't support kerning.
*
* attach_file ::
* This function handle is used to read additional data for a face from
* another file/stream. For example, this can be used to add data from
* AFM or PFM files on a Type 1 face, or a CIDMap on a CID-keyed face.
*
* get_advances ::
* A function handle used to return advance widths of 'count' glyphs
* (in font units), starting at 'first'. The 'vertical' flag must be
* set to get vertical advance heights. The 'advances' buffer is
* caller-allocated. The idea of this function is to be able to
* perform device-independent text layout without loading a single
* glyph image.
*
* request_size ::
* A handle to a function used to request the new character size. Can
* be set to 0 if the scaling done in the base layer suffices.
*
* select_size ::
* A handle to a function used to select a new fixed size. It is used
* only if @FT_FACE_FLAG_FIXED_SIZES is set. Can be set to 0 if the
* scaling done in the base layer suffices.
* @note:
* Most function pointers, with the exception of `load_glyph`, can be set
* to 0 to indicate a default behaviour.
*/
typedef struct FT_Driver_ClassRec_
{
FT_Module_Class root;
FT_Long face_object_size;
FT_Long size_object_size;
FT_Long slot_object_size;
FT_Face_InitFunc init_face;
FT_Face_DoneFunc done_face;
FT_Size_InitFunc init_size;
FT_Size_DoneFunc done_size;
FT_Slot_InitFunc init_slot;
FT_Slot_DoneFunc done_slot;
FT_Slot_LoadFunc load_glyph;
FT_Face_GetKerningFunc get_kerning;
FT_Face_AttachFunc attach_file;
FT_Face_GetAdvancesFunc get_advances;
/* since version 2.2 */
FT_Size_RequestFunc request_size;
FT_Size_SelectFunc select_size;
} FT_Driver_ClassRec, *FT_Driver_Class;
/**************************************************************************
*
* @macro:
* FT_DECLARE_DRIVER
*
* @description:
* Used to create a forward declaration of an FT_Driver_ClassRec struct
* instance.
*
* @macro:
* FT_DEFINE_DRIVER
*
* @description:
* Used to initialize an instance of FT_Driver_ClassRec struct.
*
* `ftinit.c` (ft_create_default_module_classes) already contains a
* mechanism to call these functions for the default modules described in
* `ftmodule.h`.
*
* The struct will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DECLARE_DRIVER( class_ ) \
FT_CALLBACK_TABLE \
const FT_Driver_ClassRec class_;
#define FT_DEFINE_DRIVER( \
class_, \
flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_, \
face_object_size_, \
size_object_size_, \
slot_object_size_, \
init_face_, \
done_face_, \
init_size_, \
done_size_, \
init_slot_, \
done_slot_, \
load_glyph_, \
get_kerning_, \
attach_file_, \
get_advances_, \
request_size_, \
select_size_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_Driver_ClassRec class_ = \
{ \
FT_DEFINE_ROOT_MODULE( flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_ ) \
\
face_object_size_, \
size_object_size_, \
slot_object_size_, \
\
init_face_, \
done_face_, \
\
init_size_, \
done_size_, \
\
init_slot_, \
done_slot_, \
\
load_glyph_, \
\
get_kerning_, \
attach_file_, \
get_advances_, \
\
request_size_, \
select_size_ \
};
FT_END_HEADER
#endif /* FTDRV_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftdrv.h
|
C++
|
gpl-3.0
| 9,209
|
/****************************************************************************
*
* ftgloadr.h
*
* The FreeType glyph loader (specification).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGLOADR_H_
#define FTGLOADR_H_
#include <freetype/freetype.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @struct:
* FT_GlyphLoader
*
* @description:
* The glyph loader is an internal object used to load several glyphs
* together (for example, in the case of composites).
*/
typedef struct FT_SubGlyphRec_
{
FT_Int index;
FT_UShort flags;
FT_Int arg1;
FT_Int arg2;
FT_Matrix transform;
} FT_SubGlyphRec;
typedef struct FT_GlyphLoadRec_
{
FT_Outline outline; /* outline */
FT_Vector* extra_points; /* extra points table */
FT_Vector* extra_points2; /* second extra points table */
FT_UInt num_subglyphs; /* number of subglyphs */
FT_SubGlyph subglyphs; /* subglyphs */
} FT_GlyphLoadRec, *FT_GlyphLoad;
typedef struct FT_GlyphLoaderRec_
{
FT_Memory memory;
FT_UInt max_points;
FT_UInt max_contours;
FT_UInt max_subglyphs;
FT_Bool use_extra;
FT_GlyphLoadRec base;
FT_GlyphLoadRec current;
void* other; /* for possible future extension? */
} FT_GlyphLoaderRec, *FT_GlyphLoader;
/* create new empty glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_New( FT_Memory memory,
FT_GlyphLoader *aloader );
/* add an extra points table to a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader );
/* destroy a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Done( FT_GlyphLoader loader );
/* reset a glyph loader (frees everything int it) */
FT_BASE( void )
FT_GlyphLoader_Reset( FT_GlyphLoader loader );
/* rewind a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
/* check that there is enough space to add `n_points' and `n_contours' */
/* to the glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
FT_UInt n_points,
FT_UInt n_contours );
#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \
( (_count) == 0 || \
( (FT_UInt)(_loader)->base.outline.n_points + \
(FT_UInt)(_loader)->current.outline.n_points + \
(FT_UInt)(_count) ) <= (_loader)->max_points )
#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \
( (_count) == 0 || \
( (FT_UInt)(_loader)->base.outline.n_contours + \
(FT_UInt)(_loader)->current.outline.n_contours + \
(FT_UInt)(_count) ) <= (_loader)->max_contours )
#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points, _contours ) \
( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \
FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \
? 0 \
: FT_GlyphLoader_CheckPoints( (_loader), \
(FT_UInt)(_points), \
(FT_UInt)(_contours) ) )
/* check that there is enough space to add `n_subs' sub-glyphs to */
/* a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader,
FT_UInt n_subs );
/* prepare a glyph loader, i.e. empty the current glyph */
FT_BASE( void )
FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
/* add the current glyph to the base glyph */
FT_BASE( void )
FT_GlyphLoader_Add( FT_GlyphLoader loader );
FT_END_HEADER
#endif /* FTGLOADR_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftgloadr.h
|
C++
|
gpl-3.0
| 4,504
|
/****************************************************************************
*
* fthash.h
*
* Hashing functions (specification).
*
*/
/*
* Copyright 2000 Computing Research Labs, New Mexico State University
* Copyright 2001-2015
* Francesco Zappa Nardelli
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**************************************************************************
*
* This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50
*
* taken from Mark Leisher's xmbdfed package
*
*/
#ifndef FTHASH_H_
#define FTHASH_H_
#include <freetype/freetype.h>
FT_BEGIN_HEADER
typedef union FT_Hashkey_
{
FT_Int num;
const char* str;
} FT_Hashkey;
typedef struct FT_HashnodeRec_
{
FT_Hashkey key;
size_t data;
} FT_HashnodeRec;
typedef struct FT_HashnodeRec_ *FT_Hashnode;
typedef FT_ULong
(*FT_Hash_LookupFunc)( FT_Hashkey* key );
typedef FT_Bool
(*FT_Hash_CompareFunc)( FT_Hashkey* a,
FT_Hashkey* b );
typedef struct FT_HashRec_
{
FT_UInt limit;
FT_UInt size;
FT_UInt used;
FT_Hash_LookupFunc lookup;
FT_Hash_CompareFunc compare;
FT_Hashnode* table;
} FT_HashRec;
typedef struct FT_HashRec_ *FT_Hash;
FT_Error
ft_hash_str_init( FT_Hash hash,
FT_Memory memory );
FT_Error
ft_hash_num_init( FT_Hash hash,
FT_Memory memory );
void
ft_hash_str_free( FT_Hash hash,
FT_Memory memory );
#define ft_hash_num_free ft_hash_str_free
FT_Error
ft_hash_str_insert( const char* key,
size_t data,
FT_Hash hash,
FT_Memory memory );
FT_Error
ft_hash_num_insert( FT_Int num,
size_t data,
FT_Hash hash,
FT_Memory memory );
size_t*
ft_hash_str_lookup( const char* key,
FT_Hash hash );
size_t*
ft_hash_num_lookup( FT_Int num,
FT_Hash hash );
FT_END_HEADER
#endif /* FTHASH_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/fthash.h
|
C++
|
gpl-3.0
| 3,242
|
/****************************************************************************
*
* ftmemory.h
*
* The FreeType memory management macros (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMEMORY_H_
#define FTMEMORY_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/fttypes.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @macro:
* FT_SET_ERROR
*
* @description:
* This macro is used to set an implicit 'error' variable to a given
* expression's value (usually a function call), and convert it to a
* boolean which is set whenever the value is != 0.
*/
#undef FT_SET_ERROR
#define FT_SET_ERROR( expression ) \
( ( error = (expression) ) != 0 )
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** M E M O R Y ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* The calculation `NULL + n' is undefined in C. Even if the resulting */
/* pointer doesn't get dereferenced, this causes warnings with */
/* sanitizers. */
/* */
/* We thus provide a macro that should be used if `base' can be NULL. */
#define FT_OFFSET( base, count ) ( (base) ? (base) + (count) : NULL )
/*
* C++ refuses to handle statements like p = (void*)anything, with `p' a
* typed pointer. Since we don't have a `typeof' operator in standard C++,
* we have to use a template to emulate it.
*/
#ifdef __cplusplus
extern "C++"
{
template <typename T> inline T*
cplusplus_typeof( T*,
void *v )
{
return static_cast <T*> ( v );
}
}
#define FT_ASSIGNP( p, val ) (p) = cplusplus_typeof( (p), (val) )
#else
#define FT_ASSIGNP( p, val ) (p) = (val)
#endif
#ifdef FT_DEBUG_MEMORY
FT_BASE( const char* ) _ft_debug_file;
FT_BASE( long ) _ft_debug_lineno;
#define FT_DEBUG_INNER( exp ) ( _ft_debug_file = __FILE__, \
_ft_debug_lineno = __LINE__, \
(exp) )
#define FT_ASSIGNP_INNER( p, exp ) ( _ft_debug_file = __FILE__, \
_ft_debug_lineno = __LINE__, \
FT_ASSIGNP( p, exp ) )
#else /* !FT_DEBUG_MEMORY */
#define FT_DEBUG_INNER( exp ) (exp)
#define FT_ASSIGNP_INNER( p, exp ) FT_ASSIGNP( p, exp )
#endif /* !FT_DEBUG_MEMORY */
/*
* The allocation functions return a pointer, and the error code is written
* to through the `p_error' parameter.
*/
/* The `q' variants of the functions below (`q' for `quick') don't fill */
/* the allocated or reallocated memory with zero bytes. */
FT_BASE( FT_Pointer )
ft_mem_alloc( FT_Memory memory,
FT_Long size,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_qalloc( FT_Memory memory,
FT_Long size,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_realloc( FT_Memory memory,
FT_Long item_size,
FT_Long cur_count,
FT_Long new_count,
void* block,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_qrealloc( FT_Memory memory,
FT_Long item_size,
FT_Long cur_count,
FT_Long new_count,
void* block,
FT_Error *p_error );
FT_BASE( void )
ft_mem_free( FT_Memory memory,
const void* P );
/* The `Q' variants of the macros below (`Q' for `quick') don't fill */
/* the allocated or reallocated memory with zero bytes. */
#define FT_MEM_ALLOC( ptr, size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_alloc( memory, \
(FT_Long)(size), \
&error ) )
#define FT_MEM_FREE( ptr ) \
FT_BEGIN_STMNT \
FT_DEBUG_INNER( ft_mem_free( memory, (ptr) ) ); \
(ptr) = NULL; \
FT_END_STMNT
#define FT_MEM_NEW( ptr ) \
FT_MEM_ALLOC( ptr, sizeof ( *(ptr) ) )
#define FT_MEM_REALLOC( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
1, \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_QALLOC( ptr, size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qalloc( memory, \
(FT_Long)(size), \
&error ) )
#define FT_MEM_QNEW( ptr ) \
FT_MEM_QALLOC( ptr, sizeof ( *(ptr) ) )
#define FT_MEM_QREALLOC( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
1, \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_ALLOC_MULT( ptr, count, item_size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
(FT_Long)(item_size), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
(FT_Long)(itmsz), \
(FT_Long)(oldcnt), \
(FT_Long)(newcnt), \
(ptr), \
&error ) )
#define FT_MEM_QALLOC_MULT( ptr, count, item_size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
(FT_Long)(item_size), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
(FT_Long)(itmsz), \
(FT_Long)(oldcnt), \
(FT_Long)(newcnt), \
(ptr), \
&error ) )
#define FT_MEM_SET_ERROR( cond ) ( (cond), error != 0 )
#define FT_MEM_SET( dest, byte, count ) \
ft_memset( dest, byte, (FT_Offset)(count) )
#define FT_MEM_COPY( dest, source, count ) \
ft_memcpy( dest, source, (FT_Offset)(count) )
#define FT_MEM_MOVE( dest, source, count ) \
ft_memmove( dest, source, (FT_Offset)(count) )
#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count )
#define FT_ZERO( p ) FT_MEM_ZERO( p, sizeof ( *(p) ) )
#define FT_ARRAY_ZERO( dest, count ) \
FT_MEM_ZERO( dest, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
#define FT_ARRAY_COPY( dest, source, count ) \
FT_MEM_COPY( dest, \
source, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
#define FT_ARRAY_MOVE( dest, source, count ) \
FT_MEM_MOVE( dest, \
source, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
/*
* Return the maximum number of addressable elements in an array. We limit
* ourselves to INT_MAX, rather than UINT_MAX, to avoid any problems.
*/
#define FT_ARRAY_MAX( ptr ) ( FT_INT_MAX / sizeof ( *(ptr) ) )
#define FT_ARRAY_CHECK( ptr, count ) ( (count) <= FT_ARRAY_MAX( ptr ) )
/**************************************************************************
*
* The following functions macros expect that their pointer argument is
* _typed_ in order to automatically compute array element sizes.
*/
#define FT_MEM_NEW_ARRAY( ptr, count ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
sizeof ( *(ptr) ), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_RENEW_ARRAY( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
sizeof ( *(ptr) ), \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_QNEW_ARRAY( ptr, count ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
sizeof ( *(ptr) ), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
sizeof ( *(ptr) ), \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_ALLOC( ptr, size ) \
FT_MEM_SET_ERROR( FT_MEM_ALLOC( ptr, size ) )
#define FT_REALLOC( ptr, cursz, newsz ) \
FT_MEM_SET_ERROR( FT_MEM_REALLOC( ptr, cursz, newsz ) )
#define FT_ALLOC_MULT( ptr, count, item_size ) \
FT_MEM_SET_ERROR( FT_MEM_ALLOC_MULT( ptr, count, item_size ) )
#define FT_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_MEM_SET_ERROR( FT_MEM_REALLOC_MULT( ptr, oldcnt, \
newcnt, itmsz ) )
#define FT_QALLOC( ptr, size ) \
FT_MEM_SET_ERROR( FT_MEM_QALLOC( ptr, size ) )
#define FT_QREALLOC( ptr, cursz, newsz ) \
FT_MEM_SET_ERROR( FT_MEM_QREALLOC( ptr, cursz, newsz ) )
#define FT_QALLOC_MULT( ptr, count, item_size ) \
FT_MEM_SET_ERROR( FT_MEM_QALLOC_MULT( ptr, count, item_size ) )
#define FT_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_MEM_SET_ERROR( FT_MEM_QREALLOC_MULT( ptr, oldcnt, \
newcnt, itmsz ) )
#define FT_FREE( ptr ) FT_MEM_FREE( ptr )
#define FT_NEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_NEW( ptr ) )
#define FT_NEW_ARRAY( ptr, count ) \
FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) )
#define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \
FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) )
#define FT_QNEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) )
#define FT_QNEW_ARRAY( ptr, count ) \
FT_MEM_SET_ERROR( FT_MEM_QNEW_ARRAY( ptr, count ) )
#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \
FT_MEM_SET_ERROR( FT_MEM_QRENEW_ARRAY( ptr, curcnt, newcnt ) )
FT_BASE( FT_Pointer )
ft_mem_strdup( FT_Memory memory,
const char* str,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_dup( FT_Memory memory,
const void* address,
FT_ULong size,
FT_Error *p_error );
#define FT_MEM_STRDUP( dst, str ) \
(dst) = (char*)ft_mem_strdup( memory, (const char*)(str), &error )
#define FT_STRDUP( dst, str ) \
FT_MEM_SET_ERROR( FT_MEM_STRDUP( dst, str ) )
#define FT_MEM_DUP( dst, address, size ) \
(dst) = ft_mem_dup( memory, (address), (FT_ULong)(size), &error )
#define FT_DUP( dst, address, size ) \
FT_MEM_SET_ERROR( FT_MEM_DUP( dst, address, size ) )
/* Return >= 1 if a truncation occurs. */
/* Return 0 if the source string fits the buffer. */
/* This is *not* the same as strlcpy(). */
FT_BASE( FT_Int )
ft_mem_strcpyn( char* dst,
const char* src,
FT_ULong size );
#define FT_STRCPYN( dst, src, size ) \
ft_mem_strcpyn( (char*)dst, (const char*)(src), (FT_ULong)(size) )
FT_END_HEADER
#endif /* FTMEMORY_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftmemory.h
|
C++
|
gpl-3.0
| 15,961
|
/****************************************************************************
*
* ftobjs.h
*
* The FreeType private base classes (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file contains the definition of all internal FreeType classes.
*
*/
#ifndef FTOBJS_H_
#define FTOBJS_H_
#include <freetype/ftrender.h>
#include <freetype/ftsizes.h>
#include <freetype/ftlcdfil.h>
#include <freetype/internal/ftmemory.h>
#include <freetype/internal/ftgloadr.h>
#include <freetype/internal/ftdrv.h>
#include <freetype/internal/autohint.h>
#include <freetype/internal/ftserv.h>
#include <freetype/internal/ftcalc.h>
#ifdef FT_CONFIG_OPTION_INCREMENTAL
#include <freetype/ftincrem.h>
#endif
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* Some generic definitions.
*/
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif
#ifndef NULL
#define NULL (void*)0
#endif
/**************************************************************************
*
* The min and max functions missing in C. As usual, be careful not to
* write things like FT_MIN( a++, b++ ) to avoid side effects.
*/
#define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) )
#define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) )
#define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) )
/*
* Approximate sqrt(x*x+y*y) using the `alpha max plus beta min' algorithm.
* We use alpha = 1, beta = 3/8, giving us results with a largest error
* less than 7% compared to the exact value.
*/
#define FT_HYPOT( x, y ) \
( x = FT_ABS( x ), \
y = FT_ABS( y ), \
x > y ? x + ( 3 * y >> 3 ) \
: y + ( 3 * x >> 3 ) )
/* we use FT_TYPEOF to suppress signedness compilation warnings */
#define FT_PAD_FLOOR( x, n ) ( (x) & ~FT_TYPEOF( x )( (n) - 1 ) )
#define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + (n) / 2, n )
#define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + (n) - 1, n )
#define FT_PIX_FLOOR( x ) ( (x) & ~FT_TYPEOF( x )63 )
#define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 )
#define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 )
/* specialized versions (for signed values) */
/* that don't produce run-time errors due to integer overflow */
#define FT_PAD_ROUND_LONG( x, n ) FT_PAD_FLOOR( ADD_LONG( (x), (n) / 2 ), \
n )
#define FT_PAD_CEIL_LONG( x, n ) FT_PAD_FLOOR( ADD_LONG( (x), (n) - 1 ), \
n )
#define FT_PIX_ROUND_LONG( x ) FT_PIX_FLOOR( ADD_LONG( (x), 32 ) )
#define FT_PIX_CEIL_LONG( x ) FT_PIX_FLOOR( ADD_LONG( (x), 63 ) )
#define FT_PAD_ROUND_INT32( x, n ) FT_PAD_FLOOR( ADD_INT32( (x), (n) / 2 ), \
n )
#define FT_PAD_CEIL_INT32( x, n ) FT_PAD_FLOOR( ADD_INT32( (x), (n) - 1 ), \
n )
#define FT_PIX_ROUND_INT32( x ) FT_PIX_FLOOR( ADD_INT32( (x), 32 ) )
#define FT_PIX_CEIL_INT32( x ) FT_PIX_FLOOR( ADD_INT32( (x), 63 ) )
/*
* character classification functions -- since these are used to parse font
* files, we must not use those in <ctypes.h> which are locale-dependent
*/
#define ft_isdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U )
#define ft_isxdigit( x ) ( ( (unsigned)(x) - '0' ) < 10U || \
( (unsigned)(x) - 'a' ) < 6U || \
( (unsigned)(x) - 'A' ) < 6U )
/* the next two macros assume ASCII representation */
#define ft_isupper( x ) ( ( (unsigned)(x) - 'A' ) < 26U )
#define ft_islower( x ) ( ( (unsigned)(x) - 'a' ) < 26U )
#define ft_isalpha( x ) ( ft_isupper( x ) || ft_islower( x ) )
#define ft_isalnum( x ) ( ft_isdigit( x ) || ft_isalpha( x ) )
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** C H A R M A P S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* handle to internal charmap object */
typedef struct FT_CMapRec_* FT_CMap;
/* handle to charmap class structure */
typedef const struct FT_CMap_ClassRec_* FT_CMap_Class;
/* internal charmap object structure */
typedef struct FT_CMapRec_
{
FT_CharMapRec charmap;
FT_CMap_Class clazz;
} FT_CMapRec;
/* typecast any pointer to a charmap handle */
#define FT_CMAP( x ) ( (FT_CMap)( x ) )
/* obvious macros */
#define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id
#define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id
#define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding
#define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face
/* class method definitions */
typedef FT_Error
(*FT_CMap_InitFunc)( FT_CMap cmap,
FT_Pointer init_data );
typedef void
(*FT_CMap_DoneFunc)( FT_CMap cmap );
typedef FT_UInt
(*FT_CMap_CharIndexFunc)( FT_CMap cmap,
FT_UInt32 char_code );
typedef FT_UInt
(*FT_CMap_CharNextFunc)( FT_CMap cmap,
FT_UInt32 *achar_code );
typedef FT_UInt
(*FT_CMap_CharVarIndexFunc)( FT_CMap cmap,
FT_CMap unicode_cmap,
FT_UInt32 char_code,
FT_UInt32 variant_selector );
typedef FT_Int
(*FT_CMap_CharVarIsDefaultFunc)( FT_CMap cmap,
FT_UInt32 char_code,
FT_UInt32 variant_selector );
typedef FT_UInt32 *
(*FT_CMap_VariantListFunc)( FT_CMap cmap,
FT_Memory mem );
typedef FT_UInt32 *
(*FT_CMap_CharVariantListFunc)( FT_CMap cmap,
FT_Memory mem,
FT_UInt32 char_code );
typedef FT_UInt32 *
(*FT_CMap_VariantCharListFunc)( FT_CMap cmap,
FT_Memory mem,
FT_UInt32 variant_selector );
typedef struct FT_CMap_ClassRec_
{
FT_ULong size;
FT_CMap_InitFunc init;
FT_CMap_DoneFunc done;
FT_CMap_CharIndexFunc char_index;
FT_CMap_CharNextFunc char_next;
/* Subsequent entries are special ones for format 14 -- the variant */
/* selector subtable which behaves like no other */
FT_CMap_CharVarIndexFunc char_var_index;
FT_CMap_CharVarIsDefaultFunc char_var_default;
FT_CMap_VariantListFunc variant_list;
FT_CMap_CharVariantListFunc charvariant_list;
FT_CMap_VariantCharListFunc variantchar_list;
} FT_CMap_ClassRec;
#define FT_DECLARE_CMAP_CLASS( class_ ) \
FT_CALLBACK_TABLE const FT_CMap_ClassRec class_;
#define FT_DEFINE_CMAP_CLASS( \
class_, \
size_, \
init_, \
done_, \
char_index_, \
char_next_, \
char_var_index_, \
char_var_default_, \
variant_list_, \
charvariant_list_, \
variantchar_list_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_CMap_ClassRec class_ = \
{ \
size_, \
init_, \
done_, \
char_index_, \
char_next_, \
char_var_index_, \
char_var_default_, \
variant_list_, \
charvariant_list_, \
variantchar_list_ \
};
/* create a new charmap and add it to charmap->face */
FT_BASE( FT_Error )
FT_CMap_New( FT_CMap_Class clazz,
FT_Pointer init_data,
FT_CharMap charmap,
FT_CMap *acmap );
/* destroy a charmap and remove it from face's list */
FT_BASE( void )
FT_CMap_Done( FT_CMap cmap );
/* add LCD padding to CBox */
FT_BASE( void )
ft_lcd_padding( FT_BBox* cbox,
FT_GlyphSlot slot,
FT_Render_Mode mode );
#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
typedef void (*FT_Bitmap_LcdFilterFunc)( FT_Bitmap* bitmap,
FT_Byte* weights );
/* This is the default LCD filter, an in-place, 5-tap FIR filter. */
FT_BASE( void )
ft_lcd_filter_fir( FT_Bitmap* bitmap,
FT_LcdFiveTapFilter weights );
#endif /* FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
/**************************************************************************
*
* @struct:
* FT_Face_InternalRec
*
* @description:
* This structure contains the internal fields of each FT_Face object.
* These fields may change between different releases of FreeType.
*
* @fields:
* max_points ::
* The maximum number of points used to store the vectorial outline of
* any glyph in this face. If this value cannot be known in advance,
* or if the face isn't scalable, this should be set to 0. Only
* relevant for scalable formats.
*
* max_contours ::
* The maximum number of contours used to store the vectorial outline
* of any glyph in this face. If this value cannot be known in
* advance, or if the face isn't scalable, this should be set to 0.
* Only relevant for scalable formats.
*
* transform_matrix ::
* A 2x2 matrix of 16.16 coefficients used to transform glyph outlines
* after they are loaded from the font. Only used by the convenience
* functions.
*
* transform_delta ::
* A translation vector used to transform glyph outlines after they are
* loaded from the font. Only used by the convenience functions.
*
* transform_flags ::
* Some flags used to classify the transform. Only used by the
* convenience functions.
*
* services ::
* A cache for frequently used services. It should be only accessed
* with the macro `FT_FACE_LOOKUP_SERVICE`.
*
* incremental_interface ::
* If non-null, the interface through which glyph data and metrics are
* loaded incrementally for faces that do not provide all of this data
* when first opened. This field exists only if
* @FT_CONFIG_OPTION_INCREMENTAL is defined.
*
* no_stem_darkening ::
* Overrides the module-level default, see @stem-darkening[cff], for
* example. FALSE and TRUE toggle stem darkening on and off,
* respectively, value~-1 means to use the module/driver default.
*
* random_seed ::
* If positive, override the seed value for the CFF 'random' operator.
* Value~0 means to use the font's value. Value~-1 means to use the
* CFF driver's default.
*
* lcd_weights ::
* lcd_filter_func ::
* These fields specify the LCD filtering weights and callback function
* for ClearType-style subpixel rendering.
*
* refcount ::
* A counter initialized to~1 at the time an @FT_Face structure is
* created. @FT_Reference_Face increments this counter, and
* @FT_Done_Face only destroys a face if the counter is~1, otherwise it
* simply decrements it.
*/
typedef struct FT_Face_InternalRec_
{
FT_Matrix transform_matrix;
FT_Vector transform_delta;
FT_Int transform_flags;
FT_ServiceCacheRec services;
#ifdef FT_CONFIG_OPTION_INCREMENTAL
FT_Incremental_InterfaceRec* incremental_interface;
#endif
FT_Char no_stem_darkening;
FT_Int32 random_seed;
#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
FT_LcdFiveTapFilter lcd_weights; /* filter weights, if any */
FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */
#endif
FT_Int refcount;
} FT_Face_InternalRec;
/**************************************************************************
*
* @struct:
* FT_Slot_InternalRec
*
* @description:
* This structure contains the internal fields of each FT_GlyphSlot
* object. These fields may change between different releases of
* FreeType.
*
* @fields:
* loader ::
* The glyph loader object used to load outlines into the glyph slot.
*
* flags ::
* Possible values are zero or FT_GLYPH_OWN_BITMAP. The latter
* indicates that the FT_GlyphSlot structure owns the bitmap buffer.
*
* glyph_transformed ::
* Boolean. Set to TRUE when the loaded glyph must be transformed
* through a specific font transformation. This is _not_ the same as
* the face transform set through FT_Set_Transform().
*
* glyph_matrix ::
* The 2x2 matrix corresponding to the glyph transformation, if
* necessary.
*
* glyph_delta ::
* The 2d translation vector corresponding to the glyph transformation,
* if necessary.
*
* glyph_hints ::
* Format-specific glyph hints management.
*
* load_flags ::
* The load flags passed as an argument to @FT_Load_Glyph while
* initializing the glyph slot.
*/
#define FT_GLYPH_OWN_BITMAP 0x1U
#define FT_GLYPH_OWN_GZIP_SVG 0x2U
typedef struct FT_Slot_InternalRec_
{
FT_GlyphLoader loader;
FT_UInt flags;
FT_Bool glyph_transformed;
FT_Matrix glyph_matrix;
FT_Vector glyph_delta;
void* glyph_hints;
FT_Int32 load_flags;
} FT_GlyphSlot_InternalRec;
/**************************************************************************
*
* @struct:
* FT_Size_InternalRec
*
* @description:
* This structure contains the internal fields of each FT_Size object.
*
* @fields:
* module_data ::
* Data specific to a driver module.
*
* autohint_mode ::
* The used auto-hinting mode.
*
* autohint_metrics ::
* Metrics used by the auto-hinter.
*
*/
typedef struct FT_Size_InternalRec_
{
void* module_data;
FT_Render_Mode autohint_mode;
FT_Size_Metrics autohint_metrics;
} FT_Size_InternalRec;
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** M O D U L E S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @struct:
* FT_ModuleRec
*
* @description:
* A module object instance.
*
* @fields:
* clazz ::
* A pointer to the module's class.
*
* library ::
* A handle to the parent library object.
*
* memory ::
* A handle to the memory manager.
*/
typedef struct FT_ModuleRec_
{
FT_Module_Class* clazz;
FT_Library library;
FT_Memory memory;
} FT_ModuleRec;
/* typecast an object to an FT_Module */
#define FT_MODULE( x ) ( (FT_Module)(x) )
#define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
#define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
#define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
#define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_FONT_DRIVER )
#define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_RENDERER )
#define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_HINTER )
#define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_STYLER )
#define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_SCALABLE )
#define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_NO_OUTLINES )
#define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_HAS_HINTER )
#define FT_DRIVER_HINTS_LIGHTLY( x ) ( FT_MODULE_CLASS( x )->module_flags & \
FT_MODULE_DRIVER_HINTS_LIGHTLY )
/**************************************************************************
*
* @function:
* FT_Get_Module_Interface
*
* @description:
* Finds a module and returns its specific interface as a typeless
* pointer.
*
* @input:
* library ::
* A handle to the library object.
*
* module_name ::
* The module's name (as an ASCII string).
*
* @return:
* A module-specific interface if available, 0 otherwise.
*
* @note:
* You should better be familiar with FreeType internals to know which
* module to look for, and what its interface is :-)
*/
FT_BASE( const void* )
FT_Get_Module_Interface( FT_Library library,
const char* mod_name );
FT_BASE( FT_Pointer )
ft_module_get_service( FT_Module module,
const char* service_id,
FT_Bool global );
#ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
FT_BASE( FT_Error )
ft_property_string_set( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
FT_String* value );
#endif
/* */
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** F A C E, S I Z E & G L Y P H S L O T O B J E C T S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* a few macros used to perform easy typecasts with minimal brain damage */
#define FT_FACE( x ) ( (FT_Face)(x) )
#define FT_SIZE( x ) ( (FT_Size)(x) )
#define FT_SLOT( x ) ( (FT_GlyphSlot)(x) )
#define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
#define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
#define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
#define FT_FACE_STREAM( x ) FT_FACE( x )->stream
#define FT_SIZE_FACE( x ) FT_SIZE( x )->face
#define FT_SLOT_FACE( x ) FT_SLOT( x )->face
#define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
#define FT_FACE_SIZE( x ) FT_FACE( x )->size
/**************************************************************************
*
* @function:
* FT_New_GlyphSlot
*
* @description:
* It is sometimes useful to have more than one glyph slot for a given
* face object. This function is used to create additional slots. All
* of them are automatically discarded when the face is destroyed.
*
* @input:
* face ::
* A handle to a parent face object.
*
* @output:
* aslot ::
* A handle to a new glyph slot object.
*
* @return:
* FreeType error code. 0 means success.
*/
FT_BASE( FT_Error )
FT_New_GlyphSlot( FT_Face face,
FT_GlyphSlot *aslot );
/**************************************************************************
*
* @function:
* FT_Done_GlyphSlot
*
* @description:
* Destroys a given glyph slot. Remember however that all slots are
* automatically destroyed with its parent. Using this function is not
* always mandatory.
*
* @input:
* slot ::
* A handle to a target glyph slot.
*/
FT_BASE( void )
FT_Done_GlyphSlot( FT_GlyphSlot slot );
/* */
#define FT_REQUEST_WIDTH( req ) \
( (req)->horiResolution \
? ( (req)->width * (FT_Pos)(req)->horiResolution + 36 ) / 72 \
: (req)->width )
#define FT_REQUEST_HEIGHT( req ) \
( (req)->vertResolution \
? ( (req)->height * (FT_Pos)(req)->vertResolution + 36 ) / 72 \
: (req)->height )
/* Set the metrics according to a bitmap strike. */
FT_BASE( void )
FT_Select_Metrics( FT_Face face,
FT_ULong strike_index );
/* Set the metrics according to a size request. */
FT_BASE( FT_Error )
FT_Request_Metrics( FT_Face face,
FT_Size_Request req );
/* Match a size request against `available_sizes'. */
FT_BASE( FT_Error )
FT_Match_Size( FT_Face face,
FT_Size_Request req,
FT_Bool ignore_width,
FT_ULong* size_index );
/* Use the horizontal metrics to synthesize the vertical metrics. */
/* If `advance' is zero, it is also synthesized. */
FT_BASE( void )
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
FT_Pos advance );
/* Free the bitmap of a given glyphslot when needed (i.e., only when it */
/* was allocated with ft_glyphslot_alloc_bitmap). */
FT_BASE( void )
ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
/* Preset bitmap metrics of an outline glyphslot prior to rendering */
/* and check whether the truncated bbox is too large for rendering. */
FT_BASE( FT_Bool )
ft_glyphslot_preset_bitmap( FT_GlyphSlot slot,
FT_Render_Mode mode,
const FT_Vector* origin );
/* Allocate a new bitmap buffer in a glyph slot. */
FT_BASE( FT_Error )
ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
FT_ULong size );
/* Set the bitmap buffer in a glyph slot to a given pointer. The buffer */
/* will not be freed by a later call to ft_glyphslot_free_bitmap. */
FT_BASE( void )
ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
FT_Byte* buffer );
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** R E N D E R E R S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
#define FT_RENDERER( x ) ( (FT_Renderer)(x) )
#define FT_GLYPH( x ) ( (FT_Glyph)(x) )
#define FT_BITMAP_GLYPH( x ) ( (FT_BitmapGlyph)(x) )
#define FT_OUTLINE_GLYPH( x ) ( (FT_OutlineGlyph)(x) )
typedef struct FT_RendererRec_
{
FT_ModuleRec root;
FT_Renderer_Class* clazz;
FT_Glyph_Format glyph_format;
FT_Glyph_Class glyph_class;
FT_Raster raster;
FT_Raster_Render_Func raster_render;
FT_Renderer_RenderFunc render;
} FT_RendererRec;
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** F O N T D R I V E R S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* typecast a module into a driver easily */
#define FT_DRIVER( x ) ( (FT_Driver)(x) )
/* typecast a module as a driver, and get its driver class */
#define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
/**************************************************************************
*
* @struct:
* FT_DriverRec
*
* @description:
* The root font driver class. A font driver is responsible for managing
* and loading font files of a given format.
*
* @fields:
* root ::
* Contains the fields of the root module class.
*
* clazz ::
* A pointer to the font driver's class. Note that this is NOT
* root.clazz. 'class' wasn't used as it is a reserved word in C++.
*
* faces_list ::
* The list of faces currently opened by this driver.
*
* glyph_loader ::
* Unused. Used to be glyph loader for all faces managed by this
* driver.
*/
typedef struct FT_DriverRec_
{
FT_ModuleRec root;
FT_Driver_Class clazz;
FT_ListRec faces_list;
FT_GlyphLoader glyph_loader;
} FT_DriverRec;
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** L I B R A R I E S ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @struct:
* FT_LibraryRec
*
* @description:
* The FreeType library class. This is the root of all FreeType data.
* Use FT_New_Library() to create a library object, and FT_Done_Library()
* to discard it and all child objects.
*
* @fields:
* memory ::
* The library's memory object. Manages memory allocation.
*
* version_major ::
* The major version number of the library.
*
* version_minor ::
* The minor version number of the library.
*
* version_patch ::
* The current patch level of the library.
*
* num_modules ::
* The number of modules currently registered within this library.
* This is set to 0 for new libraries. New modules are added through
* the FT_Add_Module() API function.
*
* modules ::
* A table used to store handles to the currently registered
* modules. Note that each font driver contains a list of its opened
* faces.
*
* renderers ::
* The list of renderers currently registered within the library.
*
* cur_renderer ::
* The current outline renderer. This is a shortcut used to avoid
* parsing the list on each call to FT_Outline_Render(). It is a
* handle to the current renderer for the FT_GLYPH_FORMAT_OUTLINE
* format.
*
* auto_hinter ::
* The auto-hinter module interface.
*
* debug_hooks ::
* An array of four function pointers that allow debuggers to hook into
* a font format's interpreter. Currently, only the TrueType bytecode
* debugger uses this.
*
* lcd_weights ::
* The LCD filter weights for ClearType-style subpixel rendering.
*
* lcd_filter_func ::
* The LCD filtering callback function for for ClearType-style subpixel
* rendering.
*
* lcd_geometry ::
* This array specifies LCD subpixel geometry and controls Harmony LCD
* rendering technique, alternative to ClearType.
*
* pic_container ::
* Contains global structs and tables, instead of defining them
* globally.
*
* refcount ::
* A counter initialized to~1 at the time an @FT_Library structure is
* created. @FT_Reference_Library increments this counter, and
* @FT_Done_Library only destroys a library if the counter is~1,
* otherwise it simply decrements it.
*/
typedef struct FT_LibraryRec_
{
FT_Memory memory; /* library's memory manager */
FT_Int version_major;
FT_Int version_minor;
FT_Int version_patch;
FT_UInt num_modules;
FT_Module modules[FT_MAX_MODULES]; /* module objects */
FT_ListRec renderers; /* list of renderers */
FT_Renderer cur_renderer; /* current outline renderer */
FT_Module auto_hinter;
FT_DebugHook_Func debug_hooks[4];
#ifdef FT_CONFIG_OPTION_SUBPIXEL_RENDERING
FT_LcdFiveTapFilter lcd_weights; /* filter weights, if any */
FT_Bitmap_LcdFilterFunc lcd_filter_func; /* filtering callback */
#else
FT_Vector lcd_geometry[3]; /* RGB subpixel positions */
#endif
FT_Int refcount;
} FT_LibraryRec;
FT_BASE( FT_Renderer )
FT_Lookup_Renderer( FT_Library library,
FT_Glyph_Format format,
FT_ListNode* node );
FT_BASE( FT_Error )
FT_Render_Glyph_Internal( FT_Library library,
FT_GlyphSlot slot,
FT_Render_Mode render_mode );
typedef const char*
(*FT_Face_GetPostscriptNameFunc)( FT_Face face );
typedef FT_Error
(*FT_Face_GetGlyphNameFunc)( FT_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max );
typedef FT_UInt
(*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,
const FT_String* glyph_name );
#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
/**************************************************************************
*
* @function:
* FT_New_Memory
*
* @description:
* Creates a new memory object.
*
* @return:
* A pointer to the new memory object. 0 in case of error.
*/
FT_BASE( FT_Memory )
FT_New_Memory( void );
/**************************************************************************
*
* @function:
* FT_Done_Memory
*
* @description:
* Discards memory manager.
*
* @input:
* memory ::
* A handle to the memory manager.
*/
FT_BASE( void )
FT_Done_Memory( FT_Memory memory );
#endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
/* Define default raster's interface. The default raster is located in */
/* `src/base/ftraster.c'. */
/* */
/* Client applications can register new rasters through the */
/* FT_Set_Raster() API. */
#ifndef FT_NO_DEFAULT_RASTER
FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
#endif
/**************************************************************************
*
* @macro:
* FT_DEFINE_OUTLINE_FUNCS
*
* @description:
* Used to initialize an instance of FT_Outline_Funcs struct. The struct
* will be allocated in the global scope (or the scope where the macro is
* used).
*/
#define FT_DEFINE_OUTLINE_FUNCS( \
class_, \
move_to_, \
line_to_, \
conic_to_, \
cubic_to_, \
shift_, \
delta_ ) \
static const FT_Outline_Funcs class_ = \
{ \
move_to_, \
line_to_, \
conic_to_, \
cubic_to_, \
shift_, \
delta_ \
};
/**************************************************************************
*
* @macro:
* FT_DEFINE_RASTER_FUNCS
*
* @description:
* Used to initialize an instance of FT_Raster_Funcs struct. The struct
* will be allocated in the global scope (or the scope where the macro is
* used).
*/
#define FT_DEFINE_RASTER_FUNCS( \
class_, \
glyph_format_, \
raster_new_, \
raster_reset_, \
raster_set_mode_, \
raster_render_, \
raster_done_ ) \
const FT_Raster_Funcs class_ = \
{ \
glyph_format_, \
raster_new_, \
raster_reset_, \
raster_set_mode_, \
raster_render_, \
raster_done_ \
};
/**************************************************************************
*
* @macro:
* FT_DEFINE_GLYPH
*
* @description:
* The struct will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DECLARE_GLYPH( class_ ) \
FT_CALLBACK_TABLE const FT_Glyph_Class class_;
#define FT_DEFINE_GLYPH( \
class_, \
size_, \
format_, \
init_, \
done_, \
copy_, \
transform_, \
bbox_, \
prepare_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_Glyph_Class class_ = \
{ \
size_, \
format_, \
init_, \
done_, \
copy_, \
transform_, \
bbox_, \
prepare_ \
};
/**************************************************************************
*
* @macro:
* FT_DECLARE_RENDERER
*
* @description:
* Used to create a forward declaration of a FT_Renderer_Class struct
* instance.
*
* @macro:
* FT_DEFINE_RENDERER
*
* @description:
* Used to initialize an instance of FT_Renderer_Class struct.
*
* The struct will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DECLARE_RENDERER( class_ ) \
FT_EXPORT_VAR( const FT_Renderer_Class ) class_;
#define FT_DEFINE_RENDERER( \
class_, \
flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_, \
glyph_format_, \
render_glyph_, \
transform_glyph_, \
get_glyph_cbox_, \
set_mode_, \
raster_class_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_Renderer_Class class_ = \
{ \
FT_DEFINE_ROOT_MODULE( flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_ ) \
glyph_format_, \
\
render_glyph_, \
transform_glyph_, \
get_glyph_cbox_, \
set_mode_, \
\
raster_class_ \
};
/**************************************************************************
*
* @macro:
* FT_DECLARE_MODULE
*
* @description:
* Used to create a forward declaration of a FT_Module_Class struct
* instance.
*
* @macro:
* FT_DEFINE_MODULE
*
* @description:
* Used to initialize an instance of an FT_Module_Class struct.
*
* The struct will be allocated in the global scope (or the scope where
* the macro is used).
*
* @macro:
* FT_DEFINE_ROOT_MODULE
*
* @description:
* Used to initialize an instance of an FT_Module_Class struct inside
* another struct that contains it or in a function that initializes that
* containing struct.
*/
#define FT_DECLARE_MODULE( class_ ) \
FT_CALLBACK_TABLE \
const FT_Module_Class class_;
#define FT_DEFINE_ROOT_MODULE( \
flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_ ) \
{ \
flags_, \
size_, \
\
name_, \
version_, \
requires_, \
\
interface_, \
\
init_, \
done_, \
get_interface_, \
},
#define FT_DEFINE_MODULE( \
class_, \
flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_Module_Class class_ = \
{ \
flags_, \
size_, \
\
name_, \
version_, \
requires_, \
\
interface_, \
\
init_, \
done_, \
get_interface_, \
};
FT_END_HEADER
#endif /* FTOBJS_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftobjs.h
|
C++
|
gpl-3.0
| 42,481
|
/****************************************************************************
*
* ftpsprop.h
*
* Get and set properties of PostScript drivers (specification).
*
* Copyright (C) 2017-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPSPROP_H_
#define FTPSPROP_H_
#include <freetype/freetype.h>
FT_BEGIN_HEADER
FT_BASE_CALLBACK( FT_Error )
ps_property_set( FT_Module module, /* PS_Driver */
const char* property_name,
const void* value,
FT_Bool value_is_string );
FT_BASE_CALLBACK( FT_Error )
ps_property_get( FT_Module module, /* PS_Driver */
const char* property_name,
void* value );
FT_END_HEADER
#endif /* FTPSPROP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftpsprop.h
|
C++
|
gpl-3.0
| 1,130
|
/****************************************************************************
*
* ftrfork.h
*
* Embedded resource forks accessor (specification).
*
* Copyright (C) 2004-2022 by
* Masatake YAMATO and Redhat K.K.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
* Development of the code in this file is support of
* Information-technology Promotion Agency, Japan.
*/
#ifndef FTRFORK_H_
#define FTRFORK_H_
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
/* Number of guessing rules supported in `FT_Raccess_Guess'. */
/* Don't forget to increment the number if you add a new guessing rule. */
#define FT_RACCESS_N_RULES 9
/* A structure to describe a reference in a resource by its resource ID */
/* and internal offset. The `POST' resource expects to be concatenated */
/* by the order of resource IDs instead of its appearance in the file. */
typedef struct FT_RFork_Ref_
{
FT_Short res_id;
FT_Long offset;
} FT_RFork_Ref;
#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
typedef FT_Error
(*ft_raccess_guess_func)( FT_Library library,
FT_Stream stream,
char *base_file_name,
char **result_file_name,
FT_Long *result_offset );
typedef enum FT_RFork_Rule_ {
FT_RFork_Rule_invalid = -2,
FT_RFork_Rule_uknown, /* -1 */
FT_RFork_Rule_apple_double,
FT_RFork_Rule_apple_single,
FT_RFork_Rule_darwin_ufs_export,
FT_RFork_Rule_darwin_newvfs,
FT_RFork_Rule_darwin_hfsplus,
FT_RFork_Rule_vfat,
FT_RFork_Rule_linux_cap,
FT_RFork_Rule_linux_double,
FT_RFork_Rule_linux_netatalk
} FT_RFork_Rule;
/* For fast translation between rule index and rule type,
* the macros FT_RFORK_xxx should be kept consistent with the
* raccess_guess_funcs table
*/
typedef struct ft_raccess_guess_rec_ {
ft_raccess_guess_func func;
FT_RFork_Rule type;
} ft_raccess_guess_rec;
#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \
static const type name[] = {
#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \
{ raccess_guess_ ## func_suffix, \
FT_RFork_Rule_ ## type_suffix },
/* this array is a storage, thus a final `;' is needed */
#define CONST_FT_RFORK_RULE_ARRAY_END };
#endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
/**************************************************************************
*
* @function:
* FT_Raccess_Guess
*
* @description:
* Guess a file name and offset where the actual resource fork is stored.
* The macro FT_RACCESS_N_RULES holds the number of guessing rules; the
* guessed result for the Nth rule is represented as a triplet: a new
* file name (new_names[N]), a file offset (offsets[N]), and an error
* code (errors[N]).
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* base_name ::
* The (base) file name of the resource fork used for some guessing
* rules.
*
* @output:
* new_names ::
* An array of guessed file names in which the resource forks may
* exist. If 'new_names[N]' is `NULL`, the guessed file name is equal
* to `base_name`.
*
* offsets ::
* An array of guessed file offsets. 'offsets[N]' holds the file
* offset of the possible start of the resource fork in file
* 'new_names[N]'.
*
* errors ::
* An array of FreeType error codes. 'errors[N]' is the error code of
* Nth guessing rule function. If 'errors[N]' is not FT_Err_Ok,
* 'new_names[N]' and 'offsets[N]' are meaningless.
*/
FT_BASE( void )
FT_Raccess_Guess( FT_Library library,
FT_Stream stream,
char* base_name,
char** new_names,
FT_Long* offsets,
FT_Error* errors );
/**************************************************************************
*
* @function:
* FT_Raccess_Get_HeaderInfo
*
* @description:
* Get the information from the header of resource fork. The information
* includes the file offset where the resource map starts, and the file
* offset where the resource data starts. `FT_Raccess_Get_DataOffsets`
* requires these two data.
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* rfork_offset ::
* The file offset where the resource fork starts.
*
* @output:
* map_offset ::
* The file offset where the resource map starts.
*
* rdata_pos ::
* The file offset where the resource data starts.
*
* @return:
* FreeType error code. FT_Err_Ok means success.
*/
FT_BASE( FT_Error )
FT_Raccess_Get_HeaderInfo( FT_Library library,
FT_Stream stream,
FT_Long rfork_offset,
FT_Long *map_offset,
FT_Long *rdata_pos );
/**************************************************************************
*
* @function:
* FT_Raccess_Get_DataOffsets
*
* @description:
* Get the data offsets for a tag in a resource fork. Offsets are stored
* in an array because, in some cases, resources in a resource fork have
* the same tag.
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* map_offset ::
* The file offset where the resource map starts.
*
* rdata_pos ::
* The file offset where the resource data starts.
*
* tag ::
* The resource tag.
*
* sort_by_res_id ::
* A Boolean to sort the fragmented resource by their ids. The
* fragmented resources for 'POST' resource should be sorted to restore
* Type1 font properly. For 'sfnt' resources, sorting may induce a
* different order of the faces in comparison to that by QuickDraw API.
*
* @output:
* offsets ::
* The stream offsets for the resource data specified by 'tag'. This
* array is allocated by the function, so you have to call @ft_mem_free
* after use.
*
* count ::
* The length of offsets array.
*
* @return:
* FreeType error code. FT_Err_Ok means success.
*
* @note:
* Normally you should use `FT_Raccess_Get_HeaderInfo` to get the value
* for `map_offset` and `rdata_pos`.
*/
FT_BASE( FT_Error )
FT_Raccess_Get_DataOffsets( FT_Library library,
FT_Stream stream,
FT_Long map_offset,
FT_Long rdata_pos,
FT_Long tag,
FT_Bool sort_by_res_id,
FT_Long **offsets,
FT_Long *count );
FT_END_HEADER
#endif /* FTRFORK_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftrfork.h
|
C++
|
gpl-3.0
| 7,651
|
/****************************************************************************
*
* ftserv.h
*
* The FreeType services (specification only).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* Each module can export one or more 'services'. Each service is
* identified by a constant string and modeled by a pointer; the latter
* generally corresponds to a structure containing function pointers.
*
* Note that a service's data cannot be a mere function pointer because in
* C it is possible that function pointers might be implemented differently
* than data pointers (e.g. 48 bits instead of 32).
*
*/
#ifndef FTSERV_H_
#define FTSERV_H_
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @macro:
* FT_FACE_FIND_SERVICE
*
* @description:
* This macro is used to look up a service from a face's driver module.
*
* @input:
* face ::
* The source face handle.
*
* id ::
* A string describing the service as defined in the service's header
* files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
* 'multi-masters'). It is automatically prefixed with
* `FT_SERVICE_ID_`.
*
* @output:
* ptr ::
* A variable that receives the service pointer. Will be `NULL` if not
* found.
*/
#ifdef __cplusplus
#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_ = NULL; \
FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
\
\
if ( module->clazz->get_interface ) \
_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
*_pptr_ = _tmp_; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_ = NULL; \
\
if ( module->clazz->get_interface ) \
_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
ptr = _tmp_; \
FT_END_STMNT
#endif /* !C++ */
/**************************************************************************
*
* @macro:
* FT_FACE_FIND_GLOBAL_SERVICE
*
* @description:
* This macro is used to look up a service from all modules.
*
* @input:
* face ::
* The source face handle.
*
* id ::
* A string describing the service as defined in the service's header
* files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
* 'multi-masters'). It is automatically prefixed with
* `FT_SERVICE_ID_`.
*
* @output:
* ptr ::
* A variable that receives the service pointer. Will be `NULL` if not
* found.
*/
#ifdef __cplusplus
#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_; \
FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
\
\
_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id, 1 ); \
*_pptr_ = _tmp_; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_; \
\
\
_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id, 1 ); \
ptr = _tmp_; \
FT_END_STMNT
#endif /* !C++ */
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** S E R V I C E D E S C R I P T O R S *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*
* The following structure is used to _describe_ a given service to the
* library. This is useful to build simple static service lists.
*/
typedef struct FT_ServiceDescRec_
{
const char* serv_id; /* service name */
const void* serv_data; /* service pointer/data */
} FT_ServiceDescRec;
typedef const FT_ServiceDescRec* FT_ServiceDesc;
/**************************************************************************
*
* @macro:
* FT_DEFINE_SERVICEDESCREC1
* FT_DEFINE_SERVICEDESCREC2
* FT_DEFINE_SERVICEDESCREC3
* FT_DEFINE_SERVICEDESCREC4
* FT_DEFINE_SERVICEDESCREC5
* FT_DEFINE_SERVICEDESCREC6
* FT_DEFINE_SERVICEDESCREC7
* FT_DEFINE_SERVICEDESCREC8
* FT_DEFINE_SERVICEDESCREC9
* FT_DEFINE_SERVICEDESCREC10
*
* @description:
* Used to initialize an array of FT_ServiceDescRec structures.
*
* The array will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DEFINE_SERVICEDESCREC1( class_, \
serv_id_1, serv_data_1 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC2( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC3( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC4( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC5( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC6( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC7( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC8( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC9( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ serv_id_9, serv_data_9 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC10( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9, \
serv_id_10, serv_data_10 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ serv_id_9, serv_data_9 }, \
{ serv_id_10, serv_data_10 }, \
{ NULL, NULL } \
};
/*
* Parse a list of FT_ServiceDescRec descriptors and look for a specific
* service by ID. Note that the last element in the array must be { NULL,
* NULL }, and that the function should return NULL if the service isn't
* available.
*
* This function can be used by modules to implement their `get_service'
* method.
*/
FT_BASE( FT_Pointer )
ft_service_list_lookup( FT_ServiceDesc service_descriptors,
const char* service_id );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** S E R V I C E S C A C H E *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*
* This structure is used to store a cache for several frequently used
* services. It is the type of `face->internal->services'. You should
* only use FT_FACE_LOOKUP_SERVICE to access it.
*
* All fields should have the type FT_Pointer to relax compilation
* dependencies. We assume the developer isn't completely stupid.
*
* Each field must be named `service_XXXX' where `XXX' corresponds to the
* correct FT_SERVICE_ID_XXXX macro. See the definition of
* FT_FACE_LOOKUP_SERVICE below how this is implemented.
*
*/
typedef struct FT_ServiceCacheRec_
{
FT_Pointer service_POSTSCRIPT_FONT_NAME;
FT_Pointer service_MULTI_MASTERS;
FT_Pointer service_METRICS_VARIATIONS;
FT_Pointer service_GLYPH_DICT;
FT_Pointer service_PFR_METRICS;
FT_Pointer service_WINFNT;
} FT_ServiceCacheRec, *FT_ServiceCache;
/*
* A magic number used within the services cache.
*/
/* ensure that value `1' has the same width as a pointer */
#define FT_SERVICE_UNAVAILABLE ((FT_Pointer)~(FT_PtrDist)1)
/**************************************************************************
*
* @macro:
* FT_FACE_LOOKUP_SERVICE
*
* @description:
* This macro is used to look up a service from a face's driver module
* using its cache.
*
* @input:
* face ::
* The source face handle containing the cache.
*
* field ::
* The field name in the cache.
*
* id ::
* The service ID.
*
* @output:
* ptr ::
* A variable receiving the service data. `NULL` if not available.
*/
#ifdef __cplusplus
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Pointer svc; \
FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \
\
\
svc = FT_FACE( face )->internal->services. service_ ## id; \
if ( svc == FT_SERVICE_UNAVAILABLE ) \
svc = NULL; \
else if ( svc == NULL ) \
{ \
FT_FACE_FIND_SERVICE( face, svc, id ); \
\
FT_FACE( face )->internal->services. service_ ## id = \
(FT_Pointer)( svc != NULL ? svc \
: FT_SERVICE_UNAVAILABLE ); \
} \
*Pptr = svc; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Pointer svc; \
\
\
svc = FT_FACE( face )->internal->services. service_ ## id; \
if ( svc == FT_SERVICE_UNAVAILABLE ) \
svc = NULL; \
else if ( svc == NULL ) \
{ \
FT_FACE_FIND_SERVICE( face, svc, id ); \
\
FT_FACE( face )->internal->services. service_ ## id = \
(FT_Pointer)( svc != NULL ? svc \
: FT_SERVICE_UNAVAILABLE ); \
} \
ptr = svc; \
FT_END_STMNT
#endif /* !C++ */
/*
* A macro used to define new service structure types.
*/
#define FT_DEFINE_SERVICE( name ) \
typedef struct FT_Service_ ## name ## Rec_ \
FT_Service_ ## name ## Rec ; \
typedef struct FT_Service_ ## name ## Rec_ \
const * FT_Service_ ## name ; \
struct FT_Service_ ## name ## Rec_
/* */
FT_END_HEADER
#endif /* FTSERV_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftserv.h
|
C++
|
gpl-3.0
| 24,053
|
/****************************************************************************
*
* ftstream.h
*
* Stream handling (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSTREAM_H_
#define FTSTREAM_H_
#include <ft2build.h>
#include <freetype/ftsystem.h>
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
/* format of an 8-bit frame_op value: */
/* */
/* bit 76543210 */
/* xxxxxxes */
/* */
/* s is set to 1 if the value is signed. */
/* e is set to 1 if the value is little-endian. */
/* xxx is a command. */
#define FT_FRAME_OP_SHIFT 2
#define FT_FRAME_OP_SIGNED 1
#define FT_FRAME_OP_LITTLE 2
#define FT_FRAME_OP_COMMAND( x ) ( x >> FT_FRAME_OP_SHIFT )
#define FT_MAKE_FRAME_OP( command, little, sign ) \
( ( command << FT_FRAME_OP_SHIFT ) | ( little << 1 ) | sign )
#define FT_FRAME_OP_END 0
#define FT_FRAME_OP_START 1 /* start a new frame */
#define FT_FRAME_OP_BYTE 2 /* read 1-byte value */
#define FT_FRAME_OP_SHORT 3 /* read 2-byte value */
#define FT_FRAME_OP_LONG 4 /* read 4-byte value */
#define FT_FRAME_OP_OFF3 5 /* read 3-byte value */
#define FT_FRAME_OP_BYTES 6 /* read a bytes sequence */
typedef enum FT_Frame_Op_
{
ft_frame_end = 0,
ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ),
ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ),
ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ),
ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ),
ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ),
ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ),
ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ),
ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ),
ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ),
ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ),
ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ),
ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ),
ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ),
ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ),
ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ),
ft_frame_bytes = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 0 ),
ft_frame_skip = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 1 )
} FT_Frame_Op;
typedef struct FT_Frame_Field_
{
FT_Byte value;
FT_Byte size;
FT_UShort offset;
} FT_Frame_Field;
/* Construct an FT_Frame_Field out of a structure type and a field name. */
/* The structure type must be set in the FT_STRUCTURE macro before */
/* calling the FT_FRAME_START() macro. */
/* */
#define FT_FIELD_SIZE( f ) \
(FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f )
#define FT_FIELD_SIZE_DELTA( f ) \
(FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f[0] )
#define FT_FIELD_OFFSET( f ) \
(FT_UShort)( offsetof( FT_STRUCTURE, f ) )
#define FT_FRAME_FIELD( frame_op, field ) \
{ \
frame_op, \
FT_FIELD_SIZE( field ), \
FT_FIELD_OFFSET( field ) \
}
#define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 }
#define FT_FRAME_START( size ) { ft_frame_start, 0, size }
#define FT_FRAME_END { ft_frame_end, 0, 0 }
#define FT_FRAME_LONG( f ) FT_FRAME_FIELD( ft_frame_long_be, f )
#define FT_FRAME_ULONG( f ) FT_FRAME_FIELD( ft_frame_ulong_be, f )
#define FT_FRAME_SHORT( f ) FT_FRAME_FIELD( ft_frame_short_be, f )
#define FT_FRAME_USHORT( f ) FT_FRAME_FIELD( ft_frame_ushort_be, f )
#define FT_FRAME_OFF3( f ) FT_FRAME_FIELD( ft_frame_off3_be, f )
#define FT_FRAME_UOFF3( f ) FT_FRAME_FIELD( ft_frame_uoff3_be, f )
#define FT_FRAME_BYTE( f ) FT_FRAME_FIELD( ft_frame_byte, f )
#define FT_FRAME_CHAR( f ) FT_FRAME_FIELD( ft_frame_schar, f )
#define FT_FRAME_LONG_LE( f ) FT_FRAME_FIELD( ft_frame_long_le, f )
#define FT_FRAME_ULONG_LE( f ) FT_FRAME_FIELD( ft_frame_ulong_le, f )
#define FT_FRAME_SHORT_LE( f ) FT_FRAME_FIELD( ft_frame_short_le, f )
#define FT_FRAME_USHORT_LE( f ) FT_FRAME_FIELD( ft_frame_ushort_le, f )
#define FT_FRAME_OFF3_LE( f ) FT_FRAME_FIELD( ft_frame_off3_le, f )
#define FT_FRAME_UOFF3_LE( f ) FT_FRAME_FIELD( ft_frame_uoff3_le, f )
#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 }
#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 }
#define FT_FRAME_SKIP_BYTE { ft_frame_byte, 0, 0 }
#define FT_FRAME_BYTES( field, count ) \
{ \
ft_frame_bytes, \
count, \
FT_FIELD_OFFSET( field ) \
}
#define FT_FRAME_SKIP_BYTES( count ) { ft_frame_skip, count, 0 }
/**************************************************************************
*
* Integer extraction macros -- the 'buffer' parameter must ALWAYS be of
* type 'char*' or equivalent (1-byte elements).
*/
#define FT_BYTE_( p, i ) ( ((const FT_Byte*)(p))[(i)] )
#define FT_INT16( x ) ( (FT_Int16)(x) )
#define FT_UINT16( x ) ( (FT_UInt16)(x) )
#define FT_INT32( x ) ( (FT_Int32)(x) )
#define FT_UINT32( x ) ( (FT_UInt32)(x) )
#define FT_BYTE_U16( p, i, s ) ( FT_UINT16( FT_BYTE_( p, i ) ) << (s) )
#define FT_BYTE_U32( p, i, s ) ( FT_UINT32( FT_BYTE_( p, i ) ) << (s) )
/*
* function acts on increases does range for emits
* pointer checking frames error
* -------------------------------------------------------------------
* FT_PEEK_XXX buffer pointer no no no no
* FT_NEXT_XXX buffer pointer yes no no no
* FT_GET_XXX stream->cursor yes yes yes no
* FT_READ_XXX stream->pos yes yes no yes
*/
/*
* `FT_PEEK_XXX' are generic macros to get data from a buffer position. No
* safety checks are performed.
*/
#define FT_PEEK_SHORT( p ) FT_INT16( FT_BYTE_U16( p, 0, 8 ) | \
FT_BYTE_U16( p, 1, 0 ) )
#define FT_PEEK_USHORT( p ) FT_UINT16( FT_BYTE_U16( p, 0, 8 ) | \
FT_BYTE_U16( p, 1, 0 ) )
#define FT_PEEK_LONG( p ) FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) | \
FT_BYTE_U32( p, 3, 0 ) )
#define FT_PEEK_ULONG( p ) FT_UINT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) | \
FT_BYTE_U32( p, 3, 0 ) )
#define FT_PEEK_OFF3( p ) ( FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 2, 0 ) )
#define FT_PEEK_SHORT_LE( p ) FT_INT16( FT_BYTE_U16( p, 1, 8 ) | \
FT_BYTE_U16( p, 0, 0 ) )
#define FT_PEEK_USHORT_LE( p ) FT_UINT16( FT_BYTE_U16( p, 1, 8 ) | \
FT_BYTE_U16( p, 0, 0 ) )
#define FT_PEEK_LONG_LE( p ) FT_INT32( FT_BYTE_U32( p, 3, 24 ) | \
FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
#define FT_PEEK_ULONG_LE( p ) FT_UINT32( FT_BYTE_U32( p, 3, 24 ) | \
FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
#define FT_PEEK_OFF3_LE( p ) ( FT_INT32( FT_BYTE_U32( p, 2, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 0, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
/*
* `FT_NEXT_XXX' are generic macros to get data from a buffer position
* which is then increased appropriately. No safety checks are performed.
*/
#define FT_NEXT_CHAR( buffer ) \
( (signed char)*buffer++ )
#define FT_NEXT_BYTE( buffer ) \
( (unsigned char)*buffer++ )
#define FT_NEXT_SHORT( buffer ) \
( (short)( buffer += 2, FT_PEEK_SHORT( buffer - 2 ) ) )
#define FT_NEXT_USHORT( buffer ) \
( (unsigned short)( buffer += 2, FT_PEEK_USHORT( buffer - 2 ) ) )
#define FT_NEXT_OFF3( buffer ) \
( (long)( buffer += 3, FT_PEEK_OFF3( buffer - 3 ) ) )
#define FT_NEXT_UOFF3( buffer ) \
( (unsigned long)( buffer += 3, FT_PEEK_UOFF3( buffer - 3 ) ) )
#define FT_NEXT_LONG( buffer ) \
( (long)( buffer += 4, FT_PEEK_LONG( buffer - 4 ) ) )
#define FT_NEXT_ULONG( buffer ) \
( (unsigned long)( buffer += 4, FT_PEEK_ULONG( buffer - 4 ) ) )
#define FT_NEXT_SHORT_LE( buffer ) \
( (short)( buffer += 2, FT_PEEK_SHORT_LE( buffer - 2 ) ) )
#define FT_NEXT_USHORT_LE( buffer ) \
( (unsigned short)( buffer += 2, FT_PEEK_USHORT_LE( buffer - 2 ) ) )
#define FT_NEXT_OFF3_LE( buffer ) \
( (long)( buffer += 3, FT_PEEK_OFF3_LE( buffer - 3 ) ) )
#define FT_NEXT_UOFF3_LE( buffer ) \
( (unsigned long)( buffer += 3, FT_PEEK_UOFF3_LE( buffer - 3 ) ) )
#define FT_NEXT_LONG_LE( buffer ) \
( (long)( buffer += 4, FT_PEEK_LONG_LE( buffer - 4 ) ) )
#define FT_NEXT_ULONG_LE( buffer ) \
( (unsigned long)( buffer += 4, FT_PEEK_ULONG_LE( buffer - 4 ) ) )
/**************************************************************************
*
* The `FT_GET_XXX` macros use an implicit 'stream' variable.
*
* Note that a call to `FT_STREAM_SEEK` or `FT_STREAM_POS` has **no**
* effect on `FT_GET_XXX`! They operate on `stream->pos`, while
* `FT_GET_XXX` use `stream->cursor`.
*/
#if 0
#define FT_GET_MACRO( type ) FT_NEXT_ ## type ( stream->cursor )
#define FT_GET_CHAR() FT_GET_MACRO( CHAR )
#define FT_GET_BYTE() FT_GET_MACRO( BYTE )
#define FT_GET_SHORT() FT_GET_MACRO( SHORT )
#define FT_GET_USHORT() FT_GET_MACRO( USHORT )
#define FT_GET_OFF3() FT_GET_MACRO( OFF3 )
#define FT_GET_UOFF3() FT_GET_MACRO( UOFF3 )
#define FT_GET_LONG() FT_GET_MACRO( LONG )
#define FT_GET_ULONG() FT_GET_MACRO( ULONG )
#define FT_GET_TAG4() FT_GET_MACRO( ULONG )
#define FT_GET_SHORT_LE() FT_GET_MACRO( SHORT_LE )
#define FT_GET_USHORT_LE() FT_GET_MACRO( USHORT_LE )
#define FT_GET_LONG_LE() FT_GET_MACRO( LONG_LE )
#define FT_GET_ULONG_LE() FT_GET_MACRO( ULONG_LE )
#else
#define FT_GET_MACRO( func, type ) ( (type)func( stream ) )
#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetByte, FT_Char )
#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetByte, FT_Byte )
#define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Short )
#define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UShort )
#define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_ULong )
#define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Long )
#define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong )
#define FT_GET_TAG4() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong )
#define FT_GET_SHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_Short )
#define FT_GET_USHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_UShort )
#define FT_GET_LONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_Long )
#define FT_GET_ULONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_ULong )
#endif
#define FT_READ_MACRO( func, type, var ) \
( var = (type)func( stream, &error ), \
error != FT_Err_Ok )
/*
* The `FT_READ_XXX' macros use implicit `stream' and `error' variables.
*
* `FT_READ_XXX' can be controlled with `FT_STREAM_SEEK' and
* `FT_STREAM_POS'. They use the full machinery to check whether a read is
* valid.
*/
#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Byte, var )
#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Char, var )
#define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var )
#define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UShort, var )
#define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_ULong, var )
#define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Long, var )
#define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_ULong, var )
#define FT_READ_SHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_Short, var )
#define FT_READ_USHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_UShort, var )
#define FT_READ_LONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_Long, var )
#define FT_READ_ULONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_ULong, var )
#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
/* initialize a stream for reading a regular system stream */
FT_BASE( FT_Error )
FT_Stream_Open( FT_Stream stream,
const char* filepathname );
#endif /* FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
/* create a new (input) stream from an FT_Open_Args structure */
FT_BASE( FT_Error )
FT_Stream_New( FT_Library library,
const FT_Open_Args* args,
FT_Stream *astream );
/* free a stream */
FT_BASE( void )
FT_Stream_Free( FT_Stream stream,
FT_Int external );
/* initialize a stream for reading in-memory data */
FT_BASE( void )
FT_Stream_OpenMemory( FT_Stream stream,
const FT_Byte* base,
FT_ULong size );
/* close a stream (does not destroy the stream structure) */
FT_BASE( void )
FT_Stream_Close( FT_Stream stream );
/* seek within a stream. position is relative to start of stream */
FT_BASE( FT_Error )
FT_Stream_Seek( FT_Stream stream,
FT_ULong pos );
/* skip bytes in a stream */
FT_BASE( FT_Error )
FT_Stream_Skip( FT_Stream stream,
FT_Long distance );
/* return current stream position */
FT_BASE( FT_ULong )
FT_Stream_Pos( FT_Stream stream );
/* read bytes from a stream into a user-allocated buffer, returns an */
/* error if not all bytes could be read. */
FT_BASE( FT_Error )
FT_Stream_Read( FT_Stream stream,
FT_Byte* buffer,
FT_ULong count );
/* read bytes from a stream at a given position */
FT_BASE( FT_Error )
FT_Stream_ReadAt( FT_Stream stream,
FT_ULong pos,
FT_Byte* buffer,
FT_ULong count );
/* try to read bytes at the end of a stream; return number of bytes */
/* really available */
FT_BASE( FT_ULong )
FT_Stream_TryRead( FT_Stream stream,
FT_Byte* buffer,
FT_ULong count );
/* Enter a frame of `count' consecutive bytes in a stream. Returns an */
/* error if the frame could not be read/accessed. The caller can use */
/* the `FT_Stream_GetXXX' functions to retrieve frame data without */
/* error checks. */
/* */
/* You must _always_ call `FT_Stream_ExitFrame' once you have entered */
/* a stream frame! */
/* */
/* Nested frames are not permitted. */
/* */
FT_BASE( FT_Error )
FT_Stream_EnterFrame( FT_Stream stream,
FT_ULong count );
/* exit a stream frame */
FT_BASE( void )
FT_Stream_ExitFrame( FT_Stream stream );
/* Extract a stream frame. If the stream is disk-based, a heap block */
/* is allocated and the frame bytes are read into it. If the stream */
/* is memory-based, this function simply sets a pointer to the data. */
/* */
/* Useful to optimize access to memory-based streams transparently. */
/* */
/* `FT_Stream_GetXXX' functions can't be used. */
/* */
/* An extracted frame must be `freed' with a call to the function */
/* `FT_Stream_ReleaseFrame'. */
/* */
FT_BASE( FT_Error )
FT_Stream_ExtractFrame( FT_Stream stream,
FT_ULong count,
FT_Byte** pbytes );
/* release an extract frame (see `FT_Stream_ExtractFrame') */
FT_BASE( void )
FT_Stream_ReleaseFrame( FT_Stream stream,
FT_Byte** pbytes );
/* read a byte from an entered frame */
FT_BASE( FT_Byte )
FT_Stream_GetByte( FT_Stream stream );
/* read a 16-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_UShort )
FT_Stream_GetUShort( FT_Stream stream );
/* read a 24-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_ULong )
FT_Stream_GetUOffset( FT_Stream stream );
/* read a 32-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_ULong )
FT_Stream_GetULong( FT_Stream stream );
/* read a 16-bit little-endian unsigned integer from an entered frame */
FT_BASE( FT_UShort )
FT_Stream_GetUShortLE( FT_Stream stream );
/* read a 32-bit little-endian unsigned integer from an entered frame */
FT_BASE( FT_ULong )
FT_Stream_GetULongLE( FT_Stream stream );
/* read a byte from a stream */
FT_BASE( FT_Byte )
FT_Stream_ReadByte( FT_Stream stream,
FT_Error* error );
/* read a 16-bit big-endian unsigned integer from a stream */
FT_BASE( FT_UShort )
FT_Stream_ReadUShort( FT_Stream stream,
FT_Error* error );
/* read a 24-bit big-endian unsigned integer from a stream */
FT_BASE( FT_ULong )
FT_Stream_ReadUOffset( FT_Stream stream,
FT_Error* error );
/* read a 32-bit big-endian integer from a stream */
FT_BASE( FT_ULong )
FT_Stream_ReadULong( FT_Stream stream,
FT_Error* error );
/* read a 16-bit little-endian unsigned integer from a stream */
FT_BASE( FT_UShort )
FT_Stream_ReadUShortLE( FT_Stream stream,
FT_Error* error );
/* read a 32-bit little-endian unsigned integer from a stream */
FT_BASE( FT_ULong )
FT_Stream_ReadULongLE( FT_Stream stream,
FT_Error* error );
/* Read a structure from a stream. The structure must be described */
/* by an array of FT_Frame_Field records. */
FT_BASE( FT_Error )
FT_Stream_ReadFields( FT_Stream stream,
const FT_Frame_Field* fields,
void* structure );
#define FT_STREAM_POS() \
FT_Stream_Pos( stream )
#define FT_STREAM_SEEK( position ) \
FT_SET_ERROR( FT_Stream_Seek( stream, \
(FT_ULong)(position) ) )
#define FT_STREAM_SKIP( distance ) \
FT_SET_ERROR( FT_Stream_Skip( stream, \
(FT_Long)(distance) ) )
#define FT_STREAM_READ( buffer, count ) \
FT_SET_ERROR( FT_Stream_Read( stream, \
(FT_Byte*)(buffer), \
(FT_ULong)(count) ) )
#define FT_STREAM_READ_AT( position, buffer, count ) \
FT_SET_ERROR( FT_Stream_ReadAt( stream, \
(FT_ULong)(position), \
(FT_Byte*)(buffer), \
(FT_ULong)(count) ) )
#define FT_STREAM_READ_FIELDS( fields, object ) \
FT_SET_ERROR( FT_Stream_ReadFields( stream, fields, object ) )
#define FT_FRAME_ENTER( size ) \
FT_SET_ERROR( \
FT_DEBUG_INNER( FT_Stream_EnterFrame( stream, \
(FT_ULong)(size) ) ) )
#define FT_FRAME_EXIT() \
FT_DEBUG_INNER( FT_Stream_ExitFrame( stream ) )
#define FT_FRAME_EXTRACT( size, bytes ) \
FT_SET_ERROR( \
FT_DEBUG_INNER( FT_Stream_ExtractFrame( stream, \
(FT_ULong)(size), \
(FT_Byte**)&(bytes) ) ) )
#define FT_FRAME_RELEASE( bytes ) \
FT_DEBUG_INNER( FT_Stream_ReleaseFrame( stream, \
(FT_Byte**)&(bytes) ) )
FT_END_HEADER
#endif /* FTSTREAM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftstream.h
|
C++
|
gpl-3.0
| 23,570
|
/****************************************************************************
*
* fttrace.h
*
* Tracing handling (specification only).
*
* Copyright (C) 2002-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/* definitions of trace levels for FreeType 2 */
/* the maximum string length (if the argument to `FT_TRACE_DEF` */
/* gets used as a string) plus one charachter for ':' plus */
/* another one for the trace level */
#define FT_MAX_TRACE_LEVEL_LENGTH (9 + 1 + 1)
/* the first level must always be `trace_any' */
FT_TRACE_DEF( any )
/* base components */
FT_TRACE_DEF( calc ) /* calculations (ftcalc.c) */
FT_TRACE_DEF( gloader ) /* glyph loader (ftgloadr.c) */
FT_TRACE_DEF( glyph ) /* glyph management (ftglyph.c) */
FT_TRACE_DEF( memory ) /* memory manager (ftobjs.c) */
FT_TRACE_DEF( init ) /* initialization (ftinit.c) */
FT_TRACE_DEF( io ) /* i/o interface (ftsystem.c) */
FT_TRACE_DEF( list ) /* list management (ftlist.c) */
FT_TRACE_DEF( objs ) /* base objects (ftobjs.c) */
FT_TRACE_DEF( outline ) /* outline management (ftoutln.c) */
FT_TRACE_DEF( stream ) /* stream manager (ftstream.c) */
FT_TRACE_DEF( bitmap ) /* bitmap manipulation (ftbitmap.c) */
FT_TRACE_DEF( checksum ) /* bitmap checksum (ftobjs.c) */
FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */
FT_TRACE_DEF( psprops ) /* PS driver properties (ftpsprop.c) */
FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */
FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */
/* rasterizers */
FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */
FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */
/* ot-svg module */
FT_TRACE_DEF( otsvg ) /* OT-SVG renderer (ftsvg.c) */
/* cache sub-system */
FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */
/* SFNT driver components */
FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */
FT_TRACE_DEF( sfobjs ) /* SFNT object handler (sfobjs.c) */
FT_TRACE_DEF( sfwoff ) /* WOFF format handler (sfwoff.c) */
FT_TRACE_DEF( sfwoff2 ) /* WOFF2 format handler (sfwoff2.c) */
FT_TRACE_DEF( ttbdf ) /* TrueType embedded BDF (ttbdf.c) */
FT_TRACE_DEF( ttcmap ) /* charmap handler (ttcmap.c) */
FT_TRACE_DEF( ttcolr ) /* glyph layer table (ttcolr.c) */
FT_TRACE_DEF( ttcpal ) /* color palette table (ttcpal.c) */
FT_TRACE_DEF( ttsvg ) /* OpenType SVG table (ttsvg.c) */
FT_TRACE_DEF( ttkern ) /* kerning handler (ttkern.c) */
FT_TRACE_DEF( ttload ) /* basic TrueType tables (ttload.c) */
FT_TRACE_DEF( ttmtx ) /* metrics-related tables (ttmtx.c) */
FT_TRACE_DEF( ttpost ) /* PS table processing (ttpost.c) */
FT_TRACE_DEF( ttsbit ) /* TrueType sbit handling (ttsbit.c) */
/* TrueType driver components */
FT_TRACE_DEF( ttdriver ) /* TT font driver (ttdriver.c) */
FT_TRACE_DEF( ttgload ) /* TT glyph loader (ttgload.c) */
FT_TRACE_DEF( ttgxvar ) /* TrueType GX var handler (ttgxvar.c) */
FT_TRACE_DEF( ttinterp ) /* bytecode interpreter (ttinterp.c) */
FT_TRACE_DEF( ttobjs ) /* TT objects manager (ttobjs.c) */
FT_TRACE_DEF( ttpload ) /* TT data/program loader (ttpload.c) */
/* Type 1 driver components */
FT_TRACE_DEF( t1afm )
FT_TRACE_DEF( t1driver )
FT_TRACE_DEF( t1gload )
FT_TRACE_DEF( t1load )
FT_TRACE_DEF( t1objs )
FT_TRACE_DEF( t1parse )
/* PostScript helper module `psaux' */
FT_TRACE_DEF( afmparse )
FT_TRACE_DEF( cffdecode )
FT_TRACE_DEF( psconv )
FT_TRACE_DEF( psobjs )
FT_TRACE_DEF( t1decode )
/* PostScript hinting module `pshinter' */
FT_TRACE_DEF( pshalgo )
FT_TRACE_DEF( pshrec )
/* Type 2 driver components */
FT_TRACE_DEF( cffdriver )
FT_TRACE_DEF( cffgload )
FT_TRACE_DEF( cffload )
FT_TRACE_DEF( cffobjs )
FT_TRACE_DEF( cffparse )
FT_TRACE_DEF( cf2blues )
FT_TRACE_DEF( cf2hints )
FT_TRACE_DEF( cf2interp )
/* Type 42 driver component */
FT_TRACE_DEF( t42 )
/* CID driver components */
FT_TRACE_DEF( ciddriver )
FT_TRACE_DEF( cidgload )
FT_TRACE_DEF( cidload )
FT_TRACE_DEF( cidobjs )
FT_TRACE_DEF( cidparse )
/* Windows font component */
FT_TRACE_DEF( winfnt )
/* PCF font components */
FT_TRACE_DEF( pcfdriver )
FT_TRACE_DEF( pcfread )
/* BDF font components */
FT_TRACE_DEF( bdfdriver )
FT_TRACE_DEF( bdflib )
/* PFR font component */
FT_TRACE_DEF( pfr )
/* OpenType validation components */
FT_TRACE_DEF( otvcommon )
FT_TRACE_DEF( otvbase )
FT_TRACE_DEF( otvgdef )
FT_TRACE_DEF( otvgpos )
FT_TRACE_DEF( otvgsub )
FT_TRACE_DEF( otvjstf )
FT_TRACE_DEF( otvmath )
FT_TRACE_DEF( otvmodule )
/* TrueTypeGX/AAT validation components */
FT_TRACE_DEF( gxvbsln )
FT_TRACE_DEF( gxvcommon )
FT_TRACE_DEF( gxvfeat )
FT_TRACE_DEF( gxvjust )
FT_TRACE_DEF( gxvkern )
FT_TRACE_DEF( gxvmodule )
FT_TRACE_DEF( gxvmort )
FT_TRACE_DEF( gxvmorx )
FT_TRACE_DEF( gxvlcar )
FT_TRACE_DEF( gxvopbd )
FT_TRACE_DEF( gxvprop )
FT_TRACE_DEF( gxvtrak )
/* autofit components */
FT_TRACE_DEF( afcjk )
FT_TRACE_DEF( afglobal )
FT_TRACE_DEF( afhints )
FT_TRACE_DEF( afmodule )
FT_TRACE_DEF( aflatin )
FT_TRACE_DEF( afshaper )
/* SDF components */
FT_TRACE_DEF( sdf ) /* signed distance raster for outlines (ftsdf.c) */
FT_TRACE_DEF( bsdf ) /* signed distance raster for bitmaps (ftbsdf.c) */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/fttrace.h
|
C++
|
gpl-3.0
| 5,918
|
/****************************************************************************
*
* ftvalid.h
*
* FreeType validation support (specification).
*
* Copyright (C) 2004-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTVALID_H_
#define FTVALID_H_
#include <ft2build.h>
#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_jmpbuf */
#include "compiler-macros.h"
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** V A L I D A T I O N ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* handle to a validation object */
typedef struct FT_ValidatorRec_ volatile* FT_Validator;
/**************************************************************************
*
* There are three distinct validation levels defined here:
*
* FT_VALIDATE_DEFAULT ::
* A table that passes this validation level can be used reliably by
* FreeType. It generally means that all offsets have been checked to
* prevent out-of-bound reads, that array counts are correct, etc.
*
* FT_VALIDATE_TIGHT ::
* A table that passes this validation level can be used reliably and
* doesn't contain invalid data. For example, a charmap table that
* returns invalid glyph indices will not pass, even though it can be
* used with FreeType in default mode (the library will simply return an
* error later when trying to load the glyph).
*
* It also checks that fields which must be a multiple of 2, 4, or 8,
* don't have incorrect values, etc.
*
* FT_VALIDATE_PARANOID ::
* Only for font debugging. Checks that a table follows the
* specification by 100%. Very few fonts will be able to pass this level
* anyway but it can be useful for certain tools like font
* editors/converters.
*/
typedef enum FT_ValidationLevel_
{
FT_VALIDATE_DEFAULT = 0,
FT_VALIDATE_TIGHT,
FT_VALIDATE_PARANOID
} FT_ValidationLevel;
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
/* We disable the warning `structure was padded due to */
/* __declspec(align())' in order to compile cleanly with */
/* the maximum level of warnings. */
#pragma warning( push )
#pragma warning( disable : 4324 )
#endif /* _MSC_VER */
/* validator structure */
typedef struct FT_ValidatorRec_
{
ft_jmp_buf jump_buffer; /* used for exception handling */
const FT_Byte* base; /* address of table in memory */
const FT_Byte* limit; /* `base' + sizeof(table) in memory */
FT_ValidationLevel level; /* validation level */
FT_Error error; /* error returned. 0 means success */
} FT_ValidatorRec;
#if defined( _MSC_VER )
#pragma warning( pop )
#endif
#define FT_VALIDATOR( x ) ( (FT_Validator)( x ) )
FT_BASE( void )
ft_validator_init( FT_Validator valid,
const FT_Byte* base,
const FT_Byte* limit,
FT_ValidationLevel level );
/* Do not use this. It's broken and will cause your validator to crash */
/* if you run it on an invalid font. */
FT_BASE( FT_Int )
ft_validator_run( FT_Validator valid );
/* Sets the error field in a validator, then calls `longjmp' to return */
/* to high-level caller. Using `setjmp/longjmp' avoids many stupid */
/* error checks within the validation routines. */
/* */
FT_BASE( void )
ft_validator_error( FT_Validator valid,
FT_Error error );
/* Calls ft_validate_error. Assumes that the `valid' local variable */
/* holds a pointer to the current validator object. */
/* */
#define FT_INVALID( _error ) FT_INVALID_( _error )
#define FT_INVALID_( _error ) \
ft_validator_error( valid, FT_THROW( _error ) )
/* called when a broken table is detected */
#define FT_INVALID_TOO_SHORT \
FT_INVALID( Invalid_Table )
/* called when an invalid offset is detected */
#define FT_INVALID_OFFSET \
FT_INVALID( Invalid_Offset )
/* called when an invalid format/value is detected */
#define FT_INVALID_FORMAT \
FT_INVALID( Invalid_Table )
/* called when an invalid glyph index is detected */
#define FT_INVALID_GLYPH_ID \
FT_INVALID( Invalid_Glyph_Index )
/* called when an invalid field value is detected */
#define FT_INVALID_DATA \
FT_INVALID( Invalid_Table )
FT_END_HEADER
#endif /* FTVALID_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/ftvalid.h
|
C++
|
gpl-3.0
| 5,762
|
/****************************************************************************
*
* psaux.h
*
* Auxiliary functions and data structures related to PostScript fonts
* (specification).
*
* Copyright (C) 1996-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef PSAUX_H_
#define PSAUX_H_
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/t1types.h>
#include <freetype/internal/fthash.h>
#include <freetype/internal/tttypes.h>
#include <freetype/internal/services/svpscmap.h>
#include <freetype/internal/cfftypes.h>
#include <freetype/internal/cffotypes.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* PostScript modules driver class.
*/
typedef struct PS_DriverRec_
{
FT_DriverRec root;
FT_UInt hinting_engine;
FT_Bool no_stem_darkening;
FT_Int darken_params[8];
FT_Int32 random_seed;
} PS_DriverRec, *PS_Driver;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** T1_TABLE *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PS_TableRec_* PS_Table;
typedef const struct PS_Table_FuncsRec_* PS_Table_Funcs;
/**************************************************************************
*
* @struct:
* PS_Table_FuncsRec
*
* @description:
* A set of function pointers to manage PS_Table objects.
*
* @fields:
* table_init ::
* Used to initialize a table.
*
* table_done ::
* Finalizes resp. destroy a given table.
*
* table_add ::
* Adds a new object to a table.
*
* table_release ::
* Releases table data, then finalizes it.
*/
typedef struct PS_Table_FuncsRec_
{
FT_Error
(*init)( PS_Table table,
FT_Int count,
FT_Memory memory );
void
(*done)( PS_Table table );
FT_Error
(*add)( PS_Table table,
FT_Int idx,
const void* object,
FT_UInt length );
void
(*release)( PS_Table table );
} PS_Table_FuncsRec;
/**************************************************************************
*
* @struct:
* PS_TableRec
*
* @description:
* A PS_Table is a simple object used to store an array of objects in a
* single memory block.
*
* @fields:
* block ::
* The address in memory of the growheap's block. This can change
* between two object adds, due to reallocation.
*
* cursor ::
* The current top of the grow heap within its block.
*
* capacity ::
* The current size of the heap block. Increments by 1kByte chunks.
*
* init ::
* Set to 0xDEADBEEF if 'elements' and 'lengths' have been allocated.
*
* max_elems ::
* The maximum number of elements in table.
*
* num_elems ::
* The current number of elements in table.
*
* elements ::
* A table of element addresses within the block.
*
* lengths ::
* A table of element sizes within the block.
*
* memory ::
* The object used for memory operations (alloc/realloc).
*
* funcs ::
* A table of method pointers for this object.
*/
typedef struct PS_TableRec_
{
FT_Byte* block; /* current memory block */
FT_Offset cursor; /* current cursor in memory block */
FT_Offset capacity; /* current size of memory block */
FT_ULong init;
FT_Int max_elems;
FT_Int num_elems;
FT_Byte** elements; /* addresses of table elements */
FT_UInt* lengths; /* lengths of table elements */
FT_Memory memory;
PS_Table_FuncsRec funcs;
} PS_TableRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** T1 FIELDS & TOKENS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PS_ParserRec_* PS_Parser;
typedef struct T1_TokenRec_* T1_Token;
typedef struct T1_FieldRec_* T1_Field;
/* simple enumeration type used to identify token types */
typedef enum T1_TokenType_
{
T1_TOKEN_TYPE_NONE = 0,
T1_TOKEN_TYPE_ANY,
T1_TOKEN_TYPE_STRING,
T1_TOKEN_TYPE_ARRAY,
T1_TOKEN_TYPE_KEY, /* aka `name' */
/* do not remove */
T1_TOKEN_TYPE_MAX
} T1_TokenType;
/* a simple structure used to identify tokens */
typedef struct T1_TokenRec_
{
FT_Byte* start; /* first character of token in input stream */
FT_Byte* limit; /* first character after the token */
T1_TokenType type; /* type of token */
} T1_TokenRec;
/* enumeration type used to identify object fields */
typedef enum T1_FieldType_
{
T1_FIELD_TYPE_NONE = 0,
T1_FIELD_TYPE_BOOL,
T1_FIELD_TYPE_INTEGER,
T1_FIELD_TYPE_FIXED,
T1_FIELD_TYPE_FIXED_1000,
T1_FIELD_TYPE_STRING,
T1_FIELD_TYPE_KEY,
T1_FIELD_TYPE_BBOX,
T1_FIELD_TYPE_MM_BBOX,
T1_FIELD_TYPE_INTEGER_ARRAY,
T1_FIELD_TYPE_FIXED_ARRAY,
T1_FIELD_TYPE_CALLBACK,
/* do not remove */
T1_FIELD_TYPE_MAX
} T1_FieldType;
typedef enum T1_FieldLocation_
{
T1_FIELD_LOCATION_CID_INFO,
T1_FIELD_LOCATION_FONT_DICT,
T1_FIELD_LOCATION_FONT_EXTRA,
T1_FIELD_LOCATION_FONT_INFO,
T1_FIELD_LOCATION_PRIVATE,
T1_FIELD_LOCATION_BBOX,
T1_FIELD_LOCATION_LOADER,
T1_FIELD_LOCATION_FACE,
T1_FIELD_LOCATION_BLEND,
/* do not remove */
T1_FIELD_LOCATION_MAX
} T1_FieldLocation;
typedef void
(*T1_Field_ParseFunc)( FT_Face face,
FT_Pointer parser );
/* structure type used to model object fields */
typedef struct T1_FieldRec_
{
const char* ident; /* field identifier */
T1_FieldLocation location;
T1_FieldType type; /* type of field */
T1_Field_ParseFunc reader;
FT_UInt offset; /* offset of field in object */
FT_Byte size; /* size of field in bytes */
FT_UInt array_max; /* maximum number of elements for */
/* array */
FT_UInt count_offset; /* offset of element count for */
/* arrays; must not be zero if in */
/* use -- in other words, a */
/* `num_FOO' element must not */
/* start the used structure if we */
/* parse a `FOO' array */
FT_UInt dict; /* where we expect it */
} T1_FieldRec;
#define T1_FIELD_DICT_FONTDICT ( 1 << 0 ) /* also FontInfo and FDArray */
#define T1_FIELD_DICT_PRIVATE ( 1 << 1 )
#define T1_NEW_SIMPLE_FIELD( _ident, _type, _fname, _dict ) \
{ \
_ident, T1CODE, _type, \
0, \
FT_FIELD_OFFSET( _fname ), \
FT_FIELD_SIZE( _fname ), \
0, 0, \
_dict \
},
#define T1_NEW_CALLBACK_FIELD( _ident, _reader, _dict ) \
{ \
_ident, T1CODE, T1_FIELD_TYPE_CALLBACK, \
(T1_Field_ParseFunc)_reader, \
0, 0, \
0, 0, \
_dict \
},
#define T1_NEW_TABLE_FIELD( _ident, _type, _fname, _max, _dict ) \
{ \
_ident, T1CODE, _type, \
0, \
FT_FIELD_OFFSET( _fname ), \
FT_FIELD_SIZE_DELTA( _fname ), \
_max, \
FT_FIELD_OFFSET( num_ ## _fname ), \
_dict \
},
#define T1_NEW_TABLE_FIELD2( _ident, _type, _fname, _max, _dict ) \
{ \
_ident, T1CODE, _type, \
0, \
FT_FIELD_OFFSET( _fname ), \
FT_FIELD_SIZE_DELTA( _fname ), \
_max, 0, \
_dict \
},
#define T1_FIELD_BOOL( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BOOL, _fname, _dict )
#define T1_FIELD_NUM( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER, _fname, _dict )
#define T1_FIELD_FIXED( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED, _fname, _dict )
#define T1_FIELD_FIXED_1000( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_1000, _fname, \
_dict )
#define T1_FIELD_STRING( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_STRING, _fname, _dict )
#define T1_FIELD_KEY( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_KEY, _fname, _dict )
#define T1_FIELD_BBOX( _ident, _fname, _dict ) \
T1_NEW_SIMPLE_FIELD( _ident, T1_FIELD_TYPE_BBOX, _fname, _dict )
#define T1_FIELD_NUM_TABLE( _ident, _fname, _fmax, _dict ) \
T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \
_fname, _fmax, _dict )
#define T1_FIELD_FIXED_TABLE( _ident, _fname, _fmax, _dict ) \
T1_NEW_TABLE_FIELD( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \
_fname, _fmax, _dict )
#define T1_FIELD_NUM_TABLE2( _ident, _fname, _fmax, _dict ) \
T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_INTEGER_ARRAY, \
_fname, _fmax, _dict )
#define T1_FIELD_FIXED_TABLE2( _ident, _fname, _fmax, _dict ) \
T1_NEW_TABLE_FIELD2( _ident, T1_FIELD_TYPE_FIXED_ARRAY, \
_fname, _fmax, _dict )
#define T1_FIELD_CALLBACK( _ident, _name, _dict ) \
T1_NEW_CALLBACK_FIELD( _ident, _name, _dict )
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** T1 PARSER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef const struct PS_Parser_FuncsRec_* PS_Parser_Funcs;
typedef struct PS_Parser_FuncsRec_
{
void
(*init)( PS_Parser parser,
FT_Byte* base,
FT_Byte* limit,
FT_Memory memory );
void
(*done)( PS_Parser parser );
void
(*skip_spaces)( PS_Parser parser );
void
(*skip_PS_token)( PS_Parser parser );
FT_Long
(*to_int)( PS_Parser parser );
FT_Fixed
(*to_fixed)( PS_Parser parser,
FT_Int power_ten );
FT_Error
(*to_bytes)( PS_Parser parser,
FT_Byte* bytes,
FT_Offset max_bytes,
FT_ULong* pnum_bytes,
FT_Bool delimiters );
FT_Int
(*to_coord_array)( PS_Parser parser,
FT_Int max_coords,
FT_Short* coords );
FT_Int
(*to_fixed_array)( PS_Parser parser,
FT_Int max_values,
FT_Fixed* values,
FT_Int power_ten );
void
(*to_token)( PS_Parser parser,
T1_Token token );
void
(*to_token_array)( PS_Parser parser,
T1_Token tokens,
FT_UInt max_tokens,
FT_Int* pnum_tokens );
FT_Error
(*load_field)( PS_Parser parser,
const T1_Field field,
void** objects,
FT_UInt max_objects,
FT_ULong* pflags );
FT_Error
(*load_field_table)( PS_Parser parser,
const T1_Field field,
void** objects,
FT_UInt max_objects,
FT_ULong* pflags );
} PS_Parser_FuncsRec;
/**************************************************************************
*
* @struct:
* PS_ParserRec
*
* @description:
* A PS_Parser is an object used to parse a Type 1 font very quickly.
*
* @fields:
* cursor ::
* The current position in the text.
*
* base ::
* Start of the processed text.
*
* limit ::
* End of the processed text.
*
* error ::
* The last error returned.
*
* memory ::
* The object used for memory operations (alloc/realloc).
*
* funcs ::
* A table of functions for the parser.
*/
typedef struct PS_ParserRec_
{
FT_Byte* cursor;
FT_Byte* base;
FT_Byte* limit;
FT_Error error;
FT_Memory memory;
PS_Parser_FuncsRec funcs;
} PS_ParserRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PS BUILDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PS_Builder_ PS_Builder;
typedef const struct PS_Builder_FuncsRec_* PS_Builder_Funcs;
typedef struct PS_Builder_FuncsRec_
{
void
(*init)( PS_Builder* ps_builder,
void* builder,
FT_Bool is_t1 );
void
(*done)( PS_Builder* builder );
} PS_Builder_FuncsRec;
/**************************************************************************
*
* @struct:
* PS_Builder
*
* @description:
* A structure used during glyph loading to store its outline.
*
* @fields:
* memory ::
* The current memory object.
*
* face ::
* The current face object.
*
* glyph ::
* The current glyph slot.
*
* loader ::
* XXX
*
* base ::
* The base glyph outline.
*
* current ::
* The current glyph outline.
*
* pos_x ::
* The horizontal translation (if composite glyph).
*
* pos_y ::
* The vertical translation (if composite glyph).
*
* left_bearing ::
* The left side bearing point.
*
* advance ::
* The horizontal advance vector.
*
* bbox ::
* Unused.
*
* path_begun ::
* A flag which indicates that a new path has begun.
*
* load_points ::
* If this flag is not set, no points are loaded.
*
* no_recurse ::
* Set but not used.
*
* metrics_only ::
* A boolean indicating that we only want to compute the metrics of a
* given glyph, not load all of its points.
*
* is_t1 ::
* Set if current font type is Type 1.
*
* funcs ::
* An array of function pointers for the builder.
*/
struct PS_Builder_
{
FT_Memory memory;
FT_Face face;
CFF_GlyphSlot glyph;
FT_GlyphLoader loader;
FT_Outline* base;
FT_Outline* current;
FT_Pos* pos_x;
FT_Pos* pos_y;
FT_Vector* left_bearing;
FT_Vector* advance;
FT_BBox* bbox; /* bounding box */
FT_Bool path_begun;
FT_Bool load_points;
FT_Bool no_recurse;
FT_Bool metrics_only;
FT_Bool is_t1;
PS_Builder_FuncsRec funcs;
};
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PS DECODER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define PS_MAX_OPERANDS 48
#define PS_MAX_SUBRS_CALLS 16 /* maximum subroutine nesting; */
/* only 10 are allowed but there exist */
/* fonts like `HiraKakuProN-W3.ttf' */
/* (Hiragino Kaku Gothic ProN W3; */
/* 8.2d6e1; 2014-12-19) that exceed */
/* this limit */
/* execution context charstring zone */
typedef struct PS_Decoder_Zone_
{
FT_Byte* base;
FT_Byte* limit;
FT_Byte* cursor;
} PS_Decoder_Zone;
typedef FT_Error
(*CFF_Decoder_Get_Glyph_Callback)( TT_Face face,
FT_UInt glyph_index,
FT_Byte** pointer,
FT_ULong* length );
typedef void
(*CFF_Decoder_Free_Glyph_Callback)( TT_Face face,
FT_Byte** pointer,
FT_ULong length );
typedef struct PS_Decoder_
{
PS_Builder builder;
FT_Fixed stack[PS_MAX_OPERANDS + 1];
FT_Fixed* top;
PS_Decoder_Zone zones[PS_MAX_SUBRS_CALLS + 1];
PS_Decoder_Zone* zone;
FT_Int flex_state;
FT_Int num_flex_vectors;
FT_Vector flex_vectors[7];
CFF_Font cff;
CFF_SubFont current_subfont; /* for current glyph_index */
FT_Generic* cf2_instance;
FT_Pos* glyph_width;
FT_Bool width_only;
FT_Int num_hints;
FT_UInt num_locals;
FT_UInt num_globals;
FT_Int locals_bias;
FT_Int globals_bias;
FT_Byte** locals;
FT_Byte** globals;
FT_Byte** glyph_names; /* for pure CFF fonts only */
FT_UInt num_glyphs; /* number of glyphs in font */
FT_Render_Mode hint_mode;
FT_Bool seac;
CFF_Decoder_Get_Glyph_Callback get_glyph_callback;
CFF_Decoder_Free_Glyph_Callback free_glyph_callback;
/* Type 1 stuff */
FT_Service_PsCMaps psnames; /* for seac */
FT_Int lenIV; /* internal for sub routine calls */
FT_UInt* locals_len; /* array of subrs length (optional) */
FT_Hash locals_hash; /* used if `num_subrs' was massaged */
FT_Matrix font_matrix;
FT_Vector font_offset;
PS_Blend blend; /* for multiple master support */
FT_Long* buildchar;
FT_UInt len_buildchar;
} PS_Decoder;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** T1 BUILDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct T1_BuilderRec_* T1_Builder;
typedef FT_Error
(*T1_Builder_Check_Points_Func)( T1_Builder builder,
FT_Int count );
typedef void
(*T1_Builder_Add_Point_Func)( T1_Builder builder,
FT_Pos x,
FT_Pos y,
FT_Byte flag );
typedef FT_Error
(*T1_Builder_Add_Point1_Func)( T1_Builder builder,
FT_Pos x,
FT_Pos y );
typedef FT_Error
(*T1_Builder_Add_Contour_Func)( T1_Builder builder );
typedef FT_Error
(*T1_Builder_Start_Point_Func)( T1_Builder builder,
FT_Pos x,
FT_Pos y );
typedef void
(*T1_Builder_Close_Contour_Func)( T1_Builder builder );
typedef const struct T1_Builder_FuncsRec_* T1_Builder_Funcs;
typedef struct T1_Builder_FuncsRec_
{
void
(*init)( T1_Builder builder,
FT_Face face,
FT_Size size,
FT_GlyphSlot slot,
FT_Bool hinting );
void
(*done)( T1_Builder builder );
T1_Builder_Check_Points_Func check_points;
T1_Builder_Add_Point_Func add_point;
T1_Builder_Add_Point1_Func add_point1;
T1_Builder_Add_Contour_Func add_contour;
T1_Builder_Start_Point_Func start_point;
T1_Builder_Close_Contour_Func close_contour;
} T1_Builder_FuncsRec;
/* an enumeration type to handle charstring parsing states */
typedef enum T1_ParseState_
{
T1_Parse_Start,
T1_Parse_Have_Width,
T1_Parse_Have_Moveto,
T1_Parse_Have_Path
} T1_ParseState;
/**************************************************************************
*
* @struct:
* T1_BuilderRec
*
* @description:
* A structure used during glyph loading to store its outline.
*
* @fields:
* memory ::
* The current memory object.
*
* face ::
* The current face object.
*
* glyph ::
* The current glyph slot.
*
* loader ::
* XXX
*
* base ::
* The base glyph outline.
*
* current ::
* The current glyph outline.
*
* max_points ::
* maximum points in builder outline
*
* max_contours ::
* Maximum number of contours in builder outline.
*
* pos_x ::
* The horizontal translation (if composite glyph).
*
* pos_y ::
* The vertical translation (if composite glyph).
*
* left_bearing ::
* The left side bearing point.
*
* advance ::
* The horizontal advance vector.
*
* bbox ::
* Unused.
*
* parse_state ::
* An enumeration which controls the charstring parsing state.
*
* load_points ::
* If this flag is not set, no points are loaded.
*
* no_recurse ::
* Set but not used.
*
* metrics_only ::
* A boolean indicating that we only want to compute the metrics of a
* given glyph, not load all of its points.
*
* funcs ::
* An array of function pointers for the builder.
*/
typedef struct T1_BuilderRec_
{
FT_Memory memory;
FT_Face face;
FT_GlyphSlot glyph;
FT_GlyphLoader loader;
FT_Outline* base;
FT_Outline* current;
FT_Pos pos_x;
FT_Pos pos_y;
FT_Vector left_bearing;
FT_Vector advance;
FT_BBox bbox; /* bounding box */
T1_ParseState parse_state;
FT_Bool load_points;
FT_Bool no_recurse;
FT_Bool metrics_only;
void* hints_funcs; /* hinter-specific */
void* hints_globals; /* hinter-specific */
T1_Builder_FuncsRec funcs;
} T1_BuilderRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** T1 DECODER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#if 0
/**************************************************************************
*
* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine
* calls during glyph loading.
*/
#define T1_MAX_SUBRS_CALLS 8
/**************************************************************************
*
* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A
* minimum of 16 is required.
*/
#define T1_MAX_CHARSTRINGS_OPERANDS 32
#endif /* 0 */
typedef struct T1_Decoder_ZoneRec_
{
FT_Byte* cursor;
FT_Byte* base;
FT_Byte* limit;
} T1_Decoder_ZoneRec, *T1_Decoder_Zone;
typedef struct T1_DecoderRec_* T1_Decoder;
typedef const struct T1_Decoder_FuncsRec_* T1_Decoder_Funcs;
typedef FT_Error
(*T1_Decoder_Callback)( T1_Decoder decoder,
FT_UInt glyph_index );
typedef struct T1_Decoder_FuncsRec_
{
FT_Error
(*init)( T1_Decoder decoder,
FT_Face face,
FT_Size size,
FT_GlyphSlot slot,
FT_Byte** glyph_names,
PS_Blend blend,
FT_Bool hinting,
FT_Render_Mode hint_mode,
T1_Decoder_Callback callback );
void
(*done)( T1_Decoder decoder );
#ifdef T1_CONFIG_OPTION_OLD_ENGINE
FT_Error
(*parse_charstrings_old)( T1_Decoder decoder,
FT_Byte* base,
FT_UInt len );
#else
FT_Error
(*parse_metrics)( T1_Decoder decoder,
FT_Byte* base,
FT_UInt len );
#endif
FT_Error
(*parse_charstrings)( PS_Decoder* decoder,
FT_Byte* charstring_base,
FT_ULong charstring_len );
} T1_Decoder_FuncsRec;
typedef struct T1_DecoderRec_
{
T1_BuilderRec builder;
FT_Long stack[T1_MAX_CHARSTRINGS_OPERANDS];
FT_Long* top;
T1_Decoder_ZoneRec zones[T1_MAX_SUBRS_CALLS + 1];
T1_Decoder_Zone zone;
FT_Service_PsCMaps psnames; /* for seac */
FT_UInt num_glyphs;
FT_Byte** glyph_names;
FT_Int lenIV; /* internal for sub routine calls */
FT_Int num_subrs;
FT_Byte** subrs;
FT_UInt* subrs_len; /* array of subrs length (optional) */
FT_Hash subrs_hash; /* used if `num_subrs' was massaged */
FT_Matrix font_matrix;
FT_Vector font_offset;
FT_Int flex_state;
FT_Int num_flex_vectors;
FT_Vector flex_vectors[7];
PS_Blend blend; /* for multiple master support */
FT_Render_Mode hint_mode;
T1_Decoder_Callback parse_callback;
T1_Decoder_FuncsRec funcs;
FT_Long* buildchar;
FT_UInt len_buildchar;
FT_Bool seac;
FT_Generic cf2_instance;
} T1_DecoderRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CFF BUILDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct CFF_Builder_ CFF_Builder;
typedef FT_Error
(*CFF_Builder_Check_Points_Func)( CFF_Builder* builder,
FT_Int count );
typedef void
(*CFF_Builder_Add_Point_Func)( CFF_Builder* builder,
FT_Pos x,
FT_Pos y,
FT_Byte flag );
typedef FT_Error
(*CFF_Builder_Add_Point1_Func)( CFF_Builder* builder,
FT_Pos x,
FT_Pos y );
typedef FT_Error
(*CFF_Builder_Start_Point_Func)( CFF_Builder* builder,
FT_Pos x,
FT_Pos y );
typedef void
(*CFF_Builder_Close_Contour_Func)( CFF_Builder* builder );
typedef FT_Error
(*CFF_Builder_Add_Contour_Func)( CFF_Builder* builder );
typedef const struct CFF_Builder_FuncsRec_* CFF_Builder_Funcs;
typedef struct CFF_Builder_FuncsRec_
{
void
(*init)( CFF_Builder* builder,
TT_Face face,
CFF_Size size,
CFF_GlyphSlot glyph,
FT_Bool hinting );
void
(*done)( CFF_Builder* builder );
CFF_Builder_Check_Points_Func check_points;
CFF_Builder_Add_Point_Func add_point;
CFF_Builder_Add_Point1_Func add_point1;
CFF_Builder_Add_Contour_Func add_contour;
CFF_Builder_Start_Point_Func start_point;
CFF_Builder_Close_Contour_Func close_contour;
} CFF_Builder_FuncsRec;
/**************************************************************************
*
* @struct:
* CFF_Builder
*
* @description:
* A structure used during glyph loading to store its outline.
*
* @fields:
* memory ::
* The current memory object.
*
* face ::
* The current face object.
*
* glyph ::
* The current glyph slot.
*
* loader ::
* The current glyph loader.
*
* base ::
* The base glyph outline.
*
* current ::
* The current glyph outline.
*
* pos_x ::
* The horizontal translation (if composite glyph).
*
* pos_y ::
* The vertical translation (if composite glyph).
*
* left_bearing ::
* The left side bearing point.
*
* advance ::
* The horizontal advance vector.
*
* bbox ::
* Unused.
*
* path_begun ::
* A flag which indicates that a new path has begun.
*
* load_points ::
* If this flag is not set, no points are loaded.
*
* no_recurse ::
* Set but not used.
*
* metrics_only ::
* A boolean indicating that we only want to compute the metrics of a
* given glyph, not load all of its points.
*
* hints_funcs ::
* Auxiliary pointer for hinting.
*
* hints_globals ::
* Auxiliary pointer for hinting.
*
* funcs ::
* A table of method pointers for this object.
*/
struct CFF_Builder_
{
FT_Memory memory;
TT_Face face;
CFF_GlyphSlot glyph;
FT_GlyphLoader loader;
FT_Outline* base;
FT_Outline* current;
FT_Pos pos_x;
FT_Pos pos_y;
FT_Vector left_bearing;
FT_Vector advance;
FT_BBox bbox; /* bounding box */
FT_Bool path_begun;
FT_Bool load_points;
FT_Bool no_recurse;
FT_Bool metrics_only;
void* hints_funcs; /* hinter-specific */
void* hints_globals; /* hinter-specific */
CFF_Builder_FuncsRec funcs;
};
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** CFF DECODER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define CFF_MAX_OPERANDS 48
#define CFF_MAX_SUBRS_CALLS 16 /* maximum subroutine nesting; */
/* only 10 are allowed but there exist */
/* fonts like `HiraKakuProN-W3.ttf' */
/* (Hiragino Kaku Gothic ProN W3; */
/* 8.2d6e1; 2014-12-19) that exceed */
/* this limit */
#define CFF_MAX_TRANS_ELEMENTS 32
/* execution context charstring zone */
typedef struct CFF_Decoder_Zone_
{
FT_Byte* base;
FT_Byte* limit;
FT_Byte* cursor;
} CFF_Decoder_Zone;
typedef struct CFF_Decoder_
{
CFF_Builder builder;
CFF_Font cff;
FT_Fixed stack[CFF_MAX_OPERANDS + 1];
FT_Fixed* top;
CFF_Decoder_Zone zones[CFF_MAX_SUBRS_CALLS + 1];
CFF_Decoder_Zone* zone;
FT_Int flex_state;
FT_Int num_flex_vectors;
FT_Vector flex_vectors[7];
FT_Pos glyph_width;
FT_Pos nominal_width;
FT_Bool read_width;
FT_Bool width_only;
FT_Int num_hints;
FT_Fixed buildchar[CFF_MAX_TRANS_ELEMENTS];
FT_UInt num_locals;
FT_UInt num_globals;
FT_Int locals_bias;
FT_Int globals_bias;
FT_Byte** locals;
FT_Byte** globals;
FT_Byte** glyph_names; /* for pure CFF fonts only */
FT_UInt num_glyphs; /* number of glyphs in font */
FT_Render_Mode hint_mode;
FT_Bool seac;
CFF_SubFont current_subfont; /* for current glyph_index */
CFF_Decoder_Get_Glyph_Callback get_glyph_callback;
CFF_Decoder_Free_Glyph_Callback free_glyph_callback;
} CFF_Decoder;
typedef const struct CFF_Decoder_FuncsRec_* CFF_Decoder_Funcs;
typedef struct CFF_Decoder_FuncsRec_
{
void
(*init)( CFF_Decoder* decoder,
TT_Face face,
CFF_Size size,
CFF_GlyphSlot slot,
FT_Bool hinting,
FT_Render_Mode hint_mode,
CFF_Decoder_Get_Glyph_Callback get_callback,
CFF_Decoder_Free_Glyph_Callback free_callback );
FT_Error
(*prepare)( CFF_Decoder* decoder,
CFF_Size size,
FT_UInt glyph_index );
#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
FT_Error
(*parse_charstrings_old)( CFF_Decoder* decoder,
FT_Byte* charstring_base,
FT_ULong charstring_len,
FT_Bool in_dict );
#endif
FT_Error
(*parse_charstrings)( PS_Decoder* decoder,
FT_Byte* charstring_base,
FT_ULong charstring_len );
} CFF_Decoder_FuncsRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** AFM PARSER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct AFM_ParserRec_* AFM_Parser;
typedef struct AFM_Parser_FuncsRec_
{
FT_Error
(*init)( AFM_Parser parser,
FT_Memory memory,
FT_Byte* base,
FT_Byte* limit );
void
(*done)( AFM_Parser parser );
FT_Error
(*parse)( AFM_Parser parser );
} AFM_Parser_FuncsRec;
typedef struct AFM_StreamRec_* AFM_Stream;
/**************************************************************************
*
* @struct:
* AFM_ParserRec
*
* @description:
* An AFM_Parser is a parser for the AFM files.
*
* @fields:
* memory ::
* The object used for memory operations (alloc and realloc).
*
* stream ::
* This is an opaque object.
*
* FontInfo ::
* The result will be stored here.
*
* get_index ::
* A user provided function to get a glyph index by its name.
*/
typedef struct AFM_ParserRec_
{
FT_Memory memory;
AFM_Stream stream;
AFM_FontInfo FontInfo;
FT_Int
(*get_index)( const char* name,
FT_Offset len,
void* user_data );
void* user_data;
} AFM_ParserRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** TYPE1 CHARMAPS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef const struct T1_CMap_ClassesRec_* T1_CMap_Classes;
typedef struct T1_CMap_ClassesRec_
{
FT_CMap_Class standard;
FT_CMap_Class expert;
FT_CMap_Class custom;
FT_CMap_Class unicode;
} T1_CMap_ClassesRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PSAux Module Interface *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PSAux_ServiceRec_
{
/* don't use `PS_Table_Funcs' and friends to avoid compiler warnings */
const PS_Table_FuncsRec* ps_table_funcs;
const PS_Parser_FuncsRec* ps_parser_funcs;
const T1_Builder_FuncsRec* t1_builder_funcs;
const T1_Decoder_FuncsRec* t1_decoder_funcs;
void
(*t1_decrypt)( FT_Byte* buffer,
FT_Offset length,
FT_UShort seed );
FT_UInt32
(*cff_random)( FT_UInt32 r );
void
(*ps_decoder_init)( PS_Decoder* ps_decoder,
void* decoder,
FT_Bool is_t1 );
void
(*t1_make_subfont)( FT_Face face,
PS_Private priv,
CFF_SubFont subfont );
T1_CMap_Classes t1_cmap_classes;
/* fields after this comment line were added after version 2.1.10 */
const AFM_Parser_FuncsRec* afm_parser_funcs;
const CFF_Decoder_FuncsRec* cff_decoder_funcs;
} PSAux_ServiceRec, *PSAux_Service;
/* backward compatible type definition */
typedef PSAux_ServiceRec PSAux_Interface;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** Some convenience functions *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
#define IS_PS_NEWLINE( ch ) \
( (ch) == '\r' || \
(ch) == '\n' )
#define IS_PS_SPACE( ch ) \
( (ch) == ' ' || \
IS_PS_NEWLINE( ch ) || \
(ch) == '\t' || \
(ch) == '\f' || \
(ch) == '\0' )
#define IS_PS_SPECIAL( ch ) \
( (ch) == '/' || \
(ch) == '(' || (ch) == ')' || \
(ch) == '<' || (ch) == '>' || \
(ch) == '[' || (ch) == ']' || \
(ch) == '{' || (ch) == '}' || \
(ch) == '%' )
#define IS_PS_DELIM( ch ) \
( IS_PS_SPACE( ch ) || \
IS_PS_SPECIAL( ch ) )
#define IS_PS_DIGIT( ch ) \
( (ch) >= '0' && (ch) <= '9' )
#define IS_PS_XDIGIT( ch ) \
( IS_PS_DIGIT( ch ) || \
( (ch) >= 'A' && (ch) <= 'F' ) || \
( (ch) >= 'a' && (ch) <= 'f' ) )
#define IS_PS_BASE85( ch ) \
( (ch) >= '!' && (ch) <= 'u' )
#define IS_PS_TOKEN( cur, limit, token ) \
( (char)(cur)[0] == (token)[0] && \
( (cur) + sizeof ( (token) ) == (limit) || \
( (cur) + sizeof( (token) ) < (limit) && \
IS_PS_DELIM( (cur)[sizeof ( (token) ) - 1] ) ) ) && \
ft_strncmp( (char*)(cur), (token), sizeof ( (token) ) - 1 ) == 0 )
FT_END_HEADER
#endif /* PSAUX_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/psaux.h
|
C++
|
gpl-3.0
| 43,350
|
/****************************************************************************
*
* pshints.h
*
* Interface to Postscript-specific (Type 1 and Type 2) hints
* recorders (specification only). These are used to support native
* T1/T2 hints in the 'type1', 'cid', and 'cff' font drivers.
*
* Copyright (C) 2001-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef PSHINTS_H_
#define PSHINTS_H_
#include <freetype/freetype.h>
#include <freetype/t1tables.h>
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** INTERNAL REPRESENTATION OF GLOBALS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PSH_GlobalsRec_* PSH_Globals;
typedef FT_Error
(*PSH_Globals_NewFunc)( FT_Memory memory,
T1_Private* private_dict,
PSH_Globals* aglobals );
typedef void
(*PSH_Globals_SetScaleFunc)( PSH_Globals globals,
FT_Fixed x_scale,
FT_Fixed y_scale,
FT_Fixed x_delta,
FT_Fixed y_delta );
typedef void
(*PSH_Globals_DestroyFunc)( PSH_Globals globals );
typedef struct PSH_Globals_FuncsRec_
{
PSH_Globals_NewFunc create;
PSH_Globals_SetScaleFunc set_scale;
PSH_Globals_DestroyFunc destroy;
} PSH_Globals_FuncsRec, *PSH_Globals_Funcs;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PUBLIC TYPE 1 HINTS RECORDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* T1_Hints
*
* @description:
* This is a handle to an opaque structure used to record glyph hints
* from a Type 1 character glyph character string.
*
* The methods used to operate on this object are defined by the
* @T1_Hints_FuncsRec structure. Recording glyph hints is normally
* achieved through the following scheme:
*
* - Open a new hint recording session by calling the 'open' method.
* This rewinds the recorder and prepare it for new input.
*
* - For each hint found in the glyph charstring, call the corresponding
* method ('stem', 'stem3', or 'reset'). Note that these functions do
* not return an error code.
*
* - Close the recording session by calling the 'close' method. It
* returns an error code if the hints were invalid or something strange
* happened (e.g., memory shortage).
*
* The hints accumulated in the object can later be used by the
* PostScript hinter.
*
*/
typedef struct T1_HintsRec_* T1_Hints;
/**************************************************************************
*
* @type:
* T1_Hints_Funcs
*
* @description:
* A pointer to the @T1_Hints_FuncsRec structure that defines the API of
* a given @T1_Hints object.
*
*/
typedef const struct T1_Hints_FuncsRec_* T1_Hints_Funcs;
/**************************************************************************
*
* @functype:
* T1_Hints_OpenFunc
*
* @description:
* A method of the @T1_Hints class used to prepare it for a new Type 1
* hints recording session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* @note:
* You should always call the @T1_Hints_CloseFunc method in order to
* close an opened recording session.
*
*/
typedef void
(*T1_Hints_OpenFunc)( T1_Hints hints );
/**************************************************************************
*
* @functype:
* T1_Hints_SetStemFunc
*
* @description:
* A method of the @T1_Hints class used to record a new horizontal or
* vertical stem. This corresponds to the Type 1 'hstem' and 'vstem'
* operators.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* dimension ::
* 0 for horizontal stems (hstem), 1 for vertical ones (vstem).
*
* coords ::
* Array of 2 coordinates in 16.16 format, used as (position,length)
* stem descriptor.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* 'coords[0]' is the absolute stem position (lowest coordinate);
* 'coords[1]' is the length.
*
* The length can be negative, in which case it must be either -20 or
* -21. It is interpreted as a 'ghost' stem, according to the Type 1
* specification.
*
* If the length is -21 (corresponding to a bottom ghost stem), then the
* real stem position is 'coords[0]+coords[1]'.
*
*/
typedef void
(*T1_Hints_SetStemFunc)( T1_Hints hints,
FT_UInt dimension,
FT_Fixed* coords );
/**************************************************************************
*
* @functype:
* T1_Hints_SetStem3Func
*
* @description:
* A method of the @T1_Hints class used to record three
* counter-controlled horizontal or vertical stems at once.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* dimension ::
* 0 for horizontal stems, 1 for vertical ones.
*
* coords ::
* An array of 6 values in 16.16 format, holding 3 (position,length)
* pairs for the counter-controlled stems.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* The lengths cannot be negative (ghost stems are never
* counter-controlled).
*
*/
typedef void
(*T1_Hints_SetStem3Func)( T1_Hints hints,
FT_UInt dimension,
FT_Fixed* coords );
/**************************************************************************
*
* @functype:
* T1_Hints_ResetFunc
*
* @description:
* A method of the @T1_Hints class used to reset the stems hints in a
* recording session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph in which the
* previously defined hints apply.
*
*/
typedef void
(*T1_Hints_ResetFunc)( T1_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T1_Hints_CloseFunc
*
* @description:
* A method of the @T1_Hints class used to close a hint recording
* session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* The error code is set to indicate that an error occurred during the
* recording session.
*
*/
typedef FT_Error
(*T1_Hints_CloseFunc)( T1_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T1_Hints_ApplyFunc
*
* @description:
* A method of the @T1_Hints class used to apply hints to the
* corresponding glyph outline. Must be called once all hints have been
* recorded.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* outline ::
* A pointer to the target outline descriptor.
*
* globals ::
* The hinter globals for this font.
*
* hint_mode ::
* Hinting information.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* On input, all points within the outline are in font coordinates. On
* output, they are in 1/64th of pixels.
*
* The scaling transformation is taken from the 'globals' object which
* must correspond to the same font as the glyph.
*
*/
typedef FT_Error
(*T1_Hints_ApplyFunc)( T1_Hints hints,
FT_Outline* outline,
PSH_Globals globals,
FT_Render_Mode hint_mode );
/**************************************************************************
*
* @struct:
* T1_Hints_FuncsRec
*
* @description:
* The structure used to provide the API to @T1_Hints objects.
*
* @fields:
* hints ::
* A handle to the T1 Hints recorder.
*
* open ::
* The function to open a recording session.
*
* close ::
* The function to close a recording session.
*
* stem ::
* The function to set a simple stem.
*
* stem3 ::
* The function to set counter-controlled stems.
*
* reset ::
* The function to reset stem hints.
*
* apply ::
* The function to apply the hints to the corresponding glyph outline.
*
*/
typedef struct T1_Hints_FuncsRec_
{
T1_Hints hints;
T1_Hints_OpenFunc open;
T1_Hints_CloseFunc close;
T1_Hints_SetStemFunc stem;
T1_Hints_SetStem3Func stem3;
T1_Hints_ResetFunc reset;
T1_Hints_ApplyFunc apply;
} T1_Hints_FuncsRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PUBLIC TYPE 2 HINTS RECORDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* T2_Hints
*
* @description:
* This is a handle to an opaque structure used to record glyph hints
* from a Type 2 character glyph character string.
*
* The methods used to operate on this object are defined by the
* @T2_Hints_FuncsRec structure. Recording glyph hints is normally
* achieved through the following scheme:
*
* - Open a new hint recording session by calling the 'open' method.
* This rewinds the recorder and prepare it for new input.
*
* - For each hint found in the glyph charstring, call the corresponding
* method ('stems', 'hintmask', 'counters'). Note that these functions
* do not return an error code.
*
* - Close the recording session by calling the 'close' method. It
* returns an error code if the hints were invalid or something strange
* happened (e.g., memory shortage).
*
* The hints accumulated in the object can later be used by the
* Postscript hinter.
*
*/
typedef struct T2_HintsRec_* T2_Hints;
/**************************************************************************
*
* @type:
* T2_Hints_Funcs
*
* @description:
* A pointer to the @T2_Hints_FuncsRec structure that defines the API of
* a given @T2_Hints object.
*
*/
typedef const struct T2_Hints_FuncsRec_* T2_Hints_Funcs;
/**************************************************************************
*
* @functype:
* T2_Hints_OpenFunc
*
* @description:
* A method of the @T2_Hints class used to prepare it for a new Type 2
* hints recording session.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* @note:
* You should always call the @T2_Hints_CloseFunc method in order to
* close an opened recording session.
*
*/
typedef void
(*T2_Hints_OpenFunc)( T2_Hints hints );
/**************************************************************************
*
* @functype:
* T2_Hints_StemsFunc
*
* @description:
* A method of the @T2_Hints class used to set the table of stems in
* either the vertical or horizontal dimension. Equivalent to the
* 'hstem', 'vstem', 'hstemhm', and 'vstemhm' Type 2 operators.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* dimension ::
* 0 for horizontal stems (hstem), 1 for vertical ones (vstem).
*
* count ::
* The number of stems.
*
* coords ::
* An array of 'count' (position,length) pairs in 16.16 format.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* There are '2*count' elements in the 'coords' array. Each even element
* is an absolute position in font units, each odd element is a length in
* font units.
*
* A length can be negative, in which case it must be either -20 or -21.
* It is interpreted as a 'ghost' stem, according to the Type 1
* specification.
*
*/
typedef void
(*T2_Hints_StemsFunc)( T2_Hints hints,
FT_UInt dimension,
FT_Int count,
FT_Fixed* coordinates );
/**************************************************************************
*
* @functype:
* T2_Hints_MaskFunc
*
* @description:
* A method of the @T2_Hints class used to set a given hintmask (this
* corresponds to the 'hintmask' Type 2 operator).
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* The glyph index of the last point to which the previously defined or
* activated hints apply.
*
* bit_count ::
* The number of bits in the hint mask.
*
* bytes ::
* An array of bytes modelling the hint mask.
*
* @note:
* If the hintmask starts the charstring (before any glyph point
* definition), the value of `end_point` should be 0.
*
* `bit_count` is the number of meaningful bits in the 'bytes' array; it
* must be equal to the total number of hints defined so far (i.e.,
* horizontal+verticals).
*
* The 'bytes' array can come directly from the Type 2 charstring and
* respects the same format.
*
*/
typedef void
(*T2_Hints_MaskFunc)( T2_Hints hints,
FT_UInt end_point,
FT_UInt bit_count,
const FT_Byte* bytes );
/**************************************************************************
*
* @functype:
* T2_Hints_CounterFunc
*
* @description:
* A method of the @T2_Hints class used to set a given counter mask (this
* corresponds to the 'hintmask' Type 2 operator).
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* A glyph index of the last point to which the previously defined or
* active hints apply.
*
* bit_count ::
* The number of bits in the hint mask.
*
* bytes ::
* An array of bytes modelling the hint mask.
*
* @note:
* If the hintmask starts the charstring (before any glyph point
* definition), the value of `end_point` should be 0.
*
* `bit_count` is the number of meaningful bits in the 'bytes' array; it
* must be equal to the total number of hints defined so far (i.e.,
* horizontal+verticals).
*
* The 'bytes' array can come directly from the Type 2 charstring and
* respects the same format.
*
*/
typedef void
(*T2_Hints_CounterFunc)( T2_Hints hints,
FT_UInt bit_count,
const FT_Byte* bytes );
/**************************************************************************
*
* @functype:
* T2_Hints_CloseFunc
*
* @description:
* A method of the @T2_Hints class used to close a hint recording
* session.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* The error code is set to indicate that an error occurred during the
* recording session.
*
*/
typedef FT_Error
(*T2_Hints_CloseFunc)( T2_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T2_Hints_ApplyFunc
*
* @description:
* A method of the @T2_Hints class used to apply hints to the
* corresponding glyph outline. Must be called after the 'close' method.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* outline ::
* A pointer to the target outline descriptor.
*
* globals ::
* The hinter globals for this font.
*
* hint_mode ::
* Hinting information.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* On input, all points within the outline are in font coordinates. On
* output, they are in 1/64th of pixels.
*
* The scaling transformation is taken from the 'globals' object which
* must correspond to the same font than the glyph.
*
*/
typedef FT_Error
(*T2_Hints_ApplyFunc)( T2_Hints hints,
FT_Outline* outline,
PSH_Globals globals,
FT_Render_Mode hint_mode );
/**************************************************************************
*
* @struct:
* T2_Hints_FuncsRec
*
* @description:
* The structure used to provide the API to @T2_Hints objects.
*
* @fields:
* hints ::
* A handle to the T2 hints recorder object.
*
* open ::
* The function to open a recording session.
*
* close ::
* The function to close a recording session.
*
* stems ::
* The function to set the dimension's stems table.
*
* hintmask ::
* The function to set hint masks.
*
* counter ::
* The function to set counter masks.
*
* apply ::
* The function to apply the hints on the corresponding glyph outline.
*
*/
typedef struct T2_Hints_FuncsRec_
{
T2_Hints hints;
T2_Hints_OpenFunc open;
T2_Hints_CloseFunc close;
T2_Hints_StemsFunc stems;
T2_Hints_MaskFunc hintmask;
T2_Hints_CounterFunc counter;
T2_Hints_ApplyFunc apply;
} T2_Hints_FuncsRec;
/* */
typedef struct PSHinter_Interface_
{
PSH_Globals_Funcs (*get_globals_funcs)( FT_Module module );
T1_Hints_Funcs (*get_t1_funcs) ( FT_Module module );
T2_Hints_Funcs (*get_t2_funcs) ( FT_Module module );
} PSHinter_Interface;
typedef PSHinter_Interface* PSHinter_Service;
#define FT_DEFINE_PSHINTER_INTERFACE( \
class_, \
get_globals_funcs_, \
get_t1_funcs_, \
get_t2_funcs_ ) \
static const PSHinter_Interface class_ = \
{ \
get_globals_funcs_, \
get_t1_funcs_, \
get_t2_funcs_ \
};
FT_END_HEADER
#endif /* PSHINTS_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/pshints.h
|
C++
|
gpl-3.0
| 20,856
|
/****************************************************************************
*
* svbdf.h
*
* The FreeType BDF services (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVBDF_H_
#define SVBDF_H_
#include <freetype/ftbdf.h>
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_BDF "bdf"
typedef FT_Error
(*FT_BDF_GetCharsetIdFunc)( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry );
typedef FT_Error
(*FT_BDF_GetPropertyFunc)( FT_Face face,
const char* prop_name,
BDF_PropertyRec *aproperty );
FT_DEFINE_SERVICE( BDF )
{
FT_BDF_GetCharsetIdFunc get_charset_id;
FT_BDF_GetPropertyFunc get_property;
};
#define FT_DEFINE_SERVICE_BDFRec( class_, \
get_charset_id_, \
get_property_ ) \
static const FT_Service_BDFRec class_ = \
{ \
get_charset_id_, get_property_ \
};
/* */
FT_END_HEADER
#endif /* SVBDF_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svbdf.h
|
C++
|
gpl-3.0
| 1,731
|
/****************************************************************************
*
* svcfftl.h
*
* The FreeType CFF tables loader service (specification).
*
* Copyright (C) 2017-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVCFFTL_H_
#define SVCFFTL_H_
#include <freetype/internal/ftserv.h>
#include <freetype/internal/cfftypes.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_CFF_LOAD "cff-load"
typedef FT_UShort
(*FT_Get_Standard_Encoding_Func)( FT_UInt charcode );
typedef FT_Error
(*FT_Load_Private_Dict_Func)( CFF_Font font,
CFF_SubFont subfont,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Byte
(*FT_FD_Select_Get_Func)( CFF_FDSelect fdselect,
FT_UInt glyph_index );
typedef FT_Bool
(*FT_Blend_Check_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Error
(*FT_Blend_Build_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
FT_DEFINE_SERVICE( CFFLoad )
{
FT_Get_Standard_Encoding_Func get_standard_encoding;
FT_Load_Private_Dict_Func load_private_dict;
FT_FD_Select_Get_Func fd_select_get;
FT_Blend_Check_Vector_Func blend_check_vector;
FT_Blend_Build_Vector_Func blend_build_vector;
};
#define FT_DEFINE_SERVICE_CFFLOADREC( class_, \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ ) \
static const FT_Service_CFFLoadRec class_ = \
{ \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ \
};
FT_END_HEADER
#endif
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svcfftl.h
|
C++
|
gpl-3.0
| 2,832
|
/****************************************************************************
*
* svcid.h
*
* The FreeType CID font services (specification).
*
* Copyright (C) 2007-2022 by
* Derek Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVCID_H_
#define SVCID_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_CID "CID"
typedef FT_Error
(*FT_CID_GetRegistryOrderingSupplementFunc)( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement );
typedef FT_Error
(*FT_CID_GetIsInternallyCIDKeyedFunc)( FT_Face face,
FT_Bool *is_cid );
typedef FT_Error
(*FT_CID_GetCIDFromGlyphIndexFunc)( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid );
FT_DEFINE_SERVICE( CID )
{
FT_CID_GetRegistryOrderingSupplementFunc get_ros;
FT_CID_GetIsInternallyCIDKeyedFunc get_is_cid;
FT_CID_GetCIDFromGlyphIndexFunc get_cid_from_glyph_index;
};
#define FT_DEFINE_SERVICE_CIDREC( class_, \
get_ros_, \
get_is_cid_, \
get_cid_from_glyph_index_ ) \
static const FT_Service_CIDRec class_ = \
{ \
get_ros_, get_is_cid_, get_cid_from_glyph_index_ \
};
/* */
FT_END_HEADER
#endif /* SVCID_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svcid.h
|
C++
|
gpl-3.0
| 2,124
|
/****************************************************************************
*
* svfntfmt.h
*
* The FreeType font format service (specification only).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVFNTFMT_H_
#define SVFNTFMT_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A trivial service used to return the name of a face's font driver,
* according to the XFree86 nomenclature. Note that the service data is a
* simple constant string pointer.
*/
#define FT_SERVICE_ID_FONT_FORMAT "font-format"
#define FT_FONT_FORMAT_TRUETYPE "TrueType"
#define FT_FONT_FORMAT_TYPE_1 "Type 1"
#define FT_FONT_FORMAT_BDF "BDF"
#define FT_FONT_FORMAT_PCF "PCF"
#define FT_FONT_FORMAT_TYPE_42 "Type 42"
#define FT_FONT_FORMAT_CID "CID Type 1"
#define FT_FONT_FORMAT_CFF "CFF"
#define FT_FONT_FORMAT_PFR "PFR"
#define FT_FONT_FORMAT_WINFNT "Windows FNT"
/* */
FT_END_HEADER
#endif /* SVFNTFMT_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svfntfmt.h
|
C++
|
gpl-3.0
| 1,348
|
/****************************************************************************
*
* svgldict.h
*
* The FreeType glyph dictionary services (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVGLDICT_H_
#define SVGLDICT_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service used to retrieve glyph names, as well as to find the index of
* a given glyph name in a font.
*
*/
#define FT_SERVICE_ID_GLYPH_DICT "glyph-dict"
typedef FT_Error
(*FT_GlyphDict_GetNameFunc)( FT_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max );
typedef FT_UInt
(*FT_GlyphDict_NameIndexFunc)( FT_Face face,
const FT_String* glyph_name );
FT_DEFINE_SERVICE( GlyphDict )
{
FT_GlyphDict_GetNameFunc get_name;
FT_GlyphDict_NameIndexFunc name_index; /* optional */
};
#define FT_DEFINE_SERVICE_GLYPHDICTREC( class_, \
get_name_, \
name_index_ ) \
static const FT_Service_GlyphDictRec class_ = \
{ \
get_name_, name_index_ \
};
/* */
FT_END_HEADER
#endif /* SVGLDICT_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svgldict.h
|
C++
|
gpl-3.0
| 1,865
|
/****************************************************************************
*
* svgxval.h
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
* Copyright (C) 2004-2022 by
* Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* gxvalid is derived from both gxlayout module and otvalid module.
* Development of gxlayout is supported by the Information-technology
* Promotion Agency(IPA), Japan.
*
*/
#ifndef SVGXVAL_H_
#define SVGXVAL_H_
#include <freetype/ftgxval.h>
#include <freetype/internal/ftvalid.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_GX_VALIDATE "truetypegx-validate"
#define FT_SERVICE_ID_CLASSICKERN_VALIDATE "classickern-validate"
typedef FT_Error
(*gxv_validate_func)( FT_Face face,
FT_UInt gx_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_length );
typedef FT_Error
(*ckern_validate_func)( FT_Face face,
FT_UInt ckern_flags,
FT_Bytes *ckern_table );
FT_DEFINE_SERVICE( GXvalidate )
{
gxv_validate_func validate;
};
FT_DEFINE_SERVICE( CKERNvalidate )
{
ckern_validate_func validate;
};
/* */
FT_END_HEADER
#endif /* SVGXVAL_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svgxval.h
|
C++
|
gpl-3.0
| 1,730
|
/****************************************************************************
*
* svkern.h
*
* The FreeType Kerning service (specification).
*
* Copyright (C) 2006-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVKERN_H_
#define SVKERN_H_
#include <freetype/internal/ftserv.h>
#include <freetype/tttables.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_KERNING "kerning"
typedef FT_Error
(*FT_Kerning_TrackGetFunc)( FT_Face face,
FT_Fixed point_size,
FT_Int degree,
FT_Fixed* akerning );
FT_DEFINE_SERVICE( Kerning )
{
FT_Kerning_TrackGetFunc get_track;
};
/* */
FT_END_HEADER
#endif /* SVKERN_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svkern.h
|
C++
|
gpl-3.0
| 1,080
|
/****************************************************************************
*
* svmetric.h
*
* The FreeType services for metrics variations (specification).
*
* Copyright (C) 2016-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVMETRIC_H_
#define SVMETRIC_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service to manage the `HVAR, `MVAR', and `VVAR' OpenType tables.
*
*/
#define FT_SERVICE_ID_METRICS_VARIATIONS "metrics-variations"
/* HVAR */
typedef FT_Error
(*FT_HAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_LSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_RSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* VVAR */
typedef FT_Error
(*FT_VAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_TSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_BSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_VOrg_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* MVAR */
typedef void
(*FT_Metrics_Adjust_Func)( FT_Face face );
FT_DEFINE_SERVICE( MetricsVariations )
{
FT_HAdvance_Adjust_Func hadvance_adjust;
FT_LSB_Adjust_Func lsb_adjust;
FT_RSB_Adjust_Func rsb_adjust;
FT_VAdvance_Adjust_Func vadvance_adjust;
FT_TSB_Adjust_Func tsb_adjust;
FT_BSB_Adjust_Func bsb_adjust;
FT_VOrg_Adjust_Func vorg_adjust;
FT_Metrics_Adjust_Func metrics_adjust;
};
#define FT_DEFINE_SERVICE_METRICSVARIATIONSREC( class_, \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_ ) \
static const FT_Service_MetricsVariationsRec class_ = \
{ \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_ \
};
/* */
FT_END_HEADER
#endif /* SVMETRIC_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svmetric.h
|
C++
|
gpl-3.0
| 3,755
|
/****************************************************************************
*
* svmm.h
*
* The FreeType Multiple Masters and GX var services (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVMM_H_
#define SVMM_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service used to manage multiple-masters data in a given face.
*
* See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H).
*
*/
#define FT_SERVICE_ID_MULTI_MASTERS "multi-masters"
typedef FT_Error
(*FT_Get_MM_Func)( FT_Face face,
FT_Multi_Master* master );
typedef FT_Error
(*FT_Get_MM_Var_Func)( FT_Face face,
FT_MM_Var* *master );
typedef FT_Error
(*FT_Set_MM_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
typedef FT_Error
(*FT_Get_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
typedef FT_Error
(*FT_Set_Instance_Func)( FT_Face face,
FT_UInt instance_index );
typedef FT_Error
(*FT_Get_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
typedef FT_Error
(*FT_Get_Var_Blend_Func)( FT_Face face,
FT_UInt *num_coords,
FT_Fixed* *coords,
FT_Fixed* *normalizedcoords,
FT_MM_Var* *mm_var );
typedef void
(*FT_Done_Blend_Func)( FT_Face );
typedef FT_Error
(*FT_Set_MM_WeightVector_Func)( FT_Face face,
FT_UInt len,
FT_Fixed* weight_vector );
typedef FT_Error
(*FT_Get_MM_WeightVector_Func)( FT_Face face,
FT_UInt* len,
FT_Fixed* weight_vector );
FT_DEFINE_SERVICE( MultiMasters )
{
FT_Get_MM_Func get_mm;
FT_Set_MM_Design_Func set_mm_design;
FT_Set_MM_Blend_Func set_mm_blend;
FT_Get_MM_Blend_Func get_mm_blend;
FT_Get_MM_Var_Func get_mm_var;
FT_Set_Var_Design_Func set_var_design;
FT_Get_Var_Design_Func get_var_design;
FT_Set_Instance_Func set_instance;
FT_Set_MM_WeightVector_Func set_mm_weightvector;
FT_Get_MM_WeightVector_Func get_mm_weightvector;
/* for internal use; only needed for code sharing between modules */
FT_Get_Var_Blend_Func get_var_blend;
FT_Done_Blend_Func done_blend;
};
#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_, \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_instance_, \
set_weightvector_, \
get_weightvector_, \
get_var_blend_, \
done_blend_ ) \
static const FT_Service_MultiMastersRec class_ = \
{ \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_instance_, \
set_weightvector_, \
get_weightvector_, \
get_var_blend_, \
done_blend_ \
};
/* */
FT_END_HEADER
#endif /* SVMM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svmm.h
|
C++
|
gpl-3.0
| 5,462
|
/****************************************************************************
*
* svotval.h
*
* The FreeType OpenType validation service (specification).
*
* Copyright (C) 2004-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVOTVAL_H_
#define SVOTVAL_H_
#include <freetype/ftotval.h>
#include <freetype/internal/ftvalid.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_OPENTYPE_VALIDATE "opentype-validate"
typedef FT_Error
(*otv_validate_func)( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *base,
FT_Bytes *gdef,
FT_Bytes *gpos,
FT_Bytes *gsub,
FT_Bytes *jstf );
FT_DEFINE_SERVICE( OTvalidate )
{
otv_validate_func validate;
};
/* */
FT_END_HEADER
#endif /* SVOTVAL_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svotval.h
|
C++
|
gpl-3.0
| 1,253
|
/****************************************************************************
*
* svpfr.h
*
* Internal PFR service functions (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPFR_H_
#define SVPFR_H_
#include <freetype/ftpfr.h>
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_PFR_METRICS "pfr-metrics"
typedef FT_Error
(*FT_PFR_GetMetricsFunc)( FT_Face face,
FT_UInt *aoutline,
FT_UInt *ametrics,
FT_Fixed *ax_scale,
FT_Fixed *ay_scale );
typedef FT_Error
(*FT_PFR_GetKerningFunc)( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector );
typedef FT_Error
(*FT_PFR_GetAdvanceFunc)( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance );
FT_DEFINE_SERVICE( PfrMetrics )
{
FT_PFR_GetMetricsFunc get_metrics;
FT_PFR_GetKerningFunc get_kerning;
FT_PFR_GetAdvanceFunc get_advance;
};
FT_END_HEADER
#endif /* SVPFR_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svpfr.h
|
C++
|
gpl-3.0
| 1,570
|
/****************************************************************************
*
* svpostnm.h
*
* The FreeType PostScript name services (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPOSTNM_H_
#define SVPOSTNM_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A trivial service used to retrieve the PostScript name of a given font
* when available. The `get_name' field should never be `NULL`.
*
* The corresponding function can return `NULL` to indicate that the
* PostScript name is not available.
*
* The name is owned by the face and will be destroyed with it.
*/
#define FT_SERVICE_ID_POSTSCRIPT_FONT_NAME "postscript-font-name"
typedef const char*
(*FT_PsName_GetFunc)( FT_Face face );
FT_DEFINE_SERVICE( PsFontName )
{
FT_PsName_GetFunc get_ps_font_name;
};
#define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \
static const FT_Service_PsFontNameRec class_ = \
{ \
get_ps_font_name_ \
};
/* */
FT_END_HEADER
#endif /* SVPOSTNM_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svpostnm.h
|
C++
|
gpl-3.0
| 1,571
|
/****************************************************************************
*
* svprop.h
*
* The FreeType property service (specification).
*
* Copyright (C) 2012-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPROP_H_
#define SVPROP_H_
FT_BEGIN_HEADER
#define FT_SERVICE_ID_PROPERTIES "properties"
typedef FT_Error
(*FT_Properties_SetFunc)( FT_Module module,
const char* property_name,
const void* value,
FT_Bool value_is_string );
typedef FT_Error
(*FT_Properties_GetFunc)( FT_Module module,
const char* property_name,
void* value );
FT_DEFINE_SERVICE( Properties )
{
FT_Properties_SetFunc set_property;
FT_Properties_GetFunc get_property;
};
#define FT_DEFINE_SERVICE_PROPERTIESREC( class_, \
set_property_, \
get_property_ ) \
static const FT_Service_PropertiesRec class_ = \
{ \
set_property_, \
get_property_ \
};
/* */
FT_END_HEADER
#endif /* SVPROP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svprop.h
|
C++
|
gpl-3.0
| 1,677
|
/****************************************************************************
*
* svpscmap.h
*
* The FreeType PostScript charmap service (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPSCMAP_H_
#define SVPSCMAP_H_
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_POSTSCRIPT_CMAPS "postscript-cmaps"
/*
* Adobe glyph name to unicode value.
*/
typedef FT_UInt32
(*PS_Unicode_ValueFunc)( const char* glyph_name );
/*
* Macintosh name id to glyph name. `NULL` if invalid index.
*/
typedef const char*
(*PS_Macintosh_NameFunc)( FT_UInt name_index );
/*
* Adobe standard string ID to glyph name. `NULL` if invalid index.
*/
typedef const char*
(*PS_Adobe_Std_StringsFunc)( FT_UInt string_index );
/*
* Simple unicode -> glyph index charmap built from font glyph names table.
*/
typedef struct PS_UniMap_
{
FT_UInt32 unicode; /* bit 31 set: is glyph variant */
FT_UInt glyph_index;
} PS_UniMap;
typedef struct PS_UnicodesRec_* PS_Unicodes;
typedef struct PS_UnicodesRec_
{
FT_CMapRec cmap;
FT_UInt num_maps;
PS_UniMap* maps;
} PS_UnicodesRec;
/*
* A function which returns a glyph name for a given index. Returns
* `NULL` if invalid index.
*/
typedef const char*
(*PS_GetGlyphNameFunc)( FT_Pointer data,
FT_UInt string_index );
/*
* A function used to release the glyph name returned by
* PS_GetGlyphNameFunc, when needed
*/
typedef void
(*PS_FreeGlyphNameFunc)( FT_Pointer data,
const char* name );
typedef FT_Error
(*PS_Unicodes_InitFunc)( FT_Memory memory,
PS_Unicodes unicodes,
FT_UInt num_glyphs,
PS_GetGlyphNameFunc get_glyph_name,
PS_FreeGlyphNameFunc free_glyph_name,
FT_Pointer glyph_data );
typedef FT_UInt
(*PS_Unicodes_CharIndexFunc)( PS_Unicodes unicodes,
FT_UInt32 unicode );
typedef FT_UInt32
(*PS_Unicodes_CharNextFunc)( PS_Unicodes unicodes,
FT_UInt32 *unicode );
FT_DEFINE_SERVICE( PsCMaps )
{
PS_Unicode_ValueFunc unicode_value;
PS_Unicodes_InitFunc unicodes_init;
PS_Unicodes_CharIndexFunc unicodes_char_index;
PS_Unicodes_CharNextFunc unicodes_char_next;
PS_Macintosh_NameFunc macintosh_name;
PS_Adobe_Std_StringsFunc adobe_std_strings;
const unsigned short* adobe_std_encoding;
const unsigned short* adobe_expert_encoding;
};
#define FT_DEFINE_SERVICE_PSCMAPSREC( class_, \
unicode_value_, \
unicodes_init_, \
unicodes_char_index_, \
unicodes_char_next_, \
macintosh_name_, \
adobe_std_strings_, \
adobe_std_encoding_, \
adobe_expert_encoding_ ) \
static const FT_Service_PsCMapsRec class_ = \
{ \
unicode_value_, unicodes_init_, \
unicodes_char_index_, unicodes_char_next_, macintosh_name_, \
adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_ \
};
/* */
FT_END_HEADER
#endif /* SVPSCMAP_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svpscmap.h
|
C++
|
gpl-3.0
| 4,274
|
/****************************************************************************
*
* svpsinfo.h
*
* The FreeType PostScript info service (specification).
*
* Copyright (C) 2003-2022 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPSINFO_H_
#define SVPSINFO_H_
#include <freetype/internal/ftserv.h>
#include <freetype/internal/t1types.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_POSTSCRIPT_INFO "postscript-info"
typedef FT_Error
(*PS_GetFontInfoFunc)( FT_Face face,
PS_FontInfoRec* afont_info );
typedef FT_Error
(*PS_GetFontExtraFunc)( FT_Face face,
PS_FontExtraRec* afont_extra );
typedef FT_Int
(*PS_HasGlyphNamesFunc)( FT_Face face );
typedef FT_Error
(*PS_GetFontPrivateFunc)( FT_Face face,
PS_PrivateRec* afont_private );
typedef FT_Long
(*PS_GetFontValueFunc)( FT_Face face,
PS_Dict_Keys key,
FT_UInt idx,
void *value,
FT_Long value_len );
FT_DEFINE_SERVICE( PsInfo )
{
PS_GetFontInfoFunc ps_get_font_info;
PS_GetFontExtraFunc ps_get_font_extra;
PS_HasGlyphNamesFunc ps_has_glyph_names;
PS_GetFontPrivateFunc ps_get_font_private;
PS_GetFontValueFunc ps_get_font_value;
};
#define FT_DEFINE_SERVICE_PSINFOREC( class_, \
get_font_info_, \
ps_get_font_extra_, \
has_glyph_names_, \
get_font_private_, \
get_font_value_ ) \
static const FT_Service_PsInfoRec class_ = \
{ \
get_font_info_, ps_get_font_extra_, has_glyph_names_, \
get_font_private_, get_font_value_ \
};
/* */
FT_END_HEADER
#endif /* SVPSINFO_H_ */
/* END */
|
whupdup/frame
|
real/third_party/freetype-2.12.0/include/freetype/internal/services/svpsinfo.h
|
C++
|
gpl-3.0
| 2,469
|