| | '''OpenGL extension DFX.texture_compression_FXT1 |
| | |
| | This module customises the behaviour of the |
| | OpenGL.raw.GL.DFX.texture_compression_FXT1 to provide a more |
| | Python-friendly API |
| | |
| | Overview (from the spec) |
| | |
| | This extension additional texture compression functionality 's FXT1 |
| | format, specific to 3dfxsubject to all the requirements and |
| | limitations described by the extension GL_ARB_texture_compression. |
| | The FXT1 texture format supports only 2D and 3D images without |
| | borders. |
| | |
| | Because 3dfx expects to make continual improvement to its FXT1 |
| | compressor implementation, 3dfx recommends that to achieve best |
| | visual quality applications adopt the following procedure with |
| | respect to reuse of textures compressed by the GL: |
| | |
| | 1) Save the RENDERER and VERSION strings along with images |
| | compressed by the GL; |
| | 2) Before reuse of the textures, compare the stored strings with |
| | strings newly returned from the current GL; |
| | 3) If out-of-date, repeat the compression and storage steps. |
| | |
| | The official definition of this extension is available here: |
| | http://www.opengl.org/registry/specs/DFX/texture_compression_FXT1.txt |
| | ''' |
| | from OpenGL import platform, constant, arrays |
| | from OpenGL import extensions, wrapper |
| | import ctypes |
| | from OpenGL.raw.GL import _types, _glgets |
| | from OpenGL.raw.GL.DFX.texture_compression_FXT1 import * |
| | from OpenGL.raw.GL.DFX.texture_compression_FXT1 import _EXTENSION_NAME |
| |
|
| | def glInitTextureCompressionFxt1DFX(): |
| | '''Return boolean indicating whether this extension is available''' |
| | from OpenGL import extensions |
| | return extensions.hasGLExtension( _EXTENSION_NAME ) |
| |
|
| |
|
| | |
