File size: 6,905 Bytes
7e9dc27 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | -- This file is part of mimgui project
-- Licensed under the MIT License
-- Copyright (c) 2018, FYP <https://github.com/THE-FYP>
local imgui = require 'mimgui.imgui'
local lib = imgui.lib
local ffi = require 'ffi'
ffi.cdef [[
typedef struct IDirect3DDevice9 *LPDIRECT3DDEVICE9, *PDIRECT3DDEVICE9;
typedef struct IDirect3DVertexBuffer9 *LPDIRECT3DVERTEXBUFFER9, *PDIRECT3DVERTEXBUFFER9;
typedef struct IDirect3DIndexBuffer9 *LPDIRECT3DINDEXBUFFER9, *PDIRECT3DINDEXBUFFER9;
typedef struct IDirect3DTexture9 *LPDIRECT3DTEXTURE9, *PDIRECT3DTEXTURE9;
typedef const char *LPCTSTR;
typedef const void *LPCVOID;
typedef unsigned int UINT;
typedef void *HWND;
typedef signed __int64 INT64, *PINT64;
typedef unsigned int UINT_PTR, *PUINT_PTR;
typedef long LONG_PTR, *PLONG_PTR;
typedef UINT_PTR WPARAM;
typedef LONG_PTR LPARAM;
typedef LONG_PTR LRESULT;
typedef struct ImGui_ImplDX9_Context
{
LPDIRECT3DDEVICE9 pd3dDevice;
LPDIRECT3DVERTEXBUFFER9 pVB;
LPDIRECT3DINDEXBUFFER9 pIB;
LPDIRECT3DTEXTURE9 FontTexture;
int VertexBufferSize;
int IndexBufferSize;
} ImGui_ImplDX9_Context;
bool ImGui_ImplWin32_Init(HWND hwnd, INT64* ticksPerSecond, INT64* time);
void ImGui_ImplWin32_NewFrame(HWND hwnd, INT64 ticksPerSecond, INT64* time);
LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
ImGui_ImplDX9_Context* ImGui_ImplDX9_Init(LPDIRECT3DDEVICE9 device);
void ImGui_ImplDX9_Shutdown(ImGui_ImplDX9_Context* context);
void ImGui_ImplDX9_NewFrame(ImGui_ImplDX9_Context* context);
void ImGui_ImplDX9_RenderDrawData(ImGui_ImplDX9_Context* context, ImDrawData* draw_data);
void ImGui_ImplDX9_InvalidateDeviceObjects(ImGui_ImplDX9_Context* context);
bool ImGui_ImplDX9_CreateFontsTexture(ImGui_ImplDX9_Context* context); // replaces ImGui_ImplDX9_CreateDeviceObjects since they are the same
void ImGui_ImplDX9_InvalidateFontsTexture(ImGui_ImplDX9_Context* context);
LPDIRECT3DTEXTURE9 ImGui_ImplDX9_CreateTextureFromFile(LPDIRECT3DDEVICE9 device, LPCTSTR path);
LPDIRECT3DTEXTURE9 ImGui_ImplDX9_CreateTextureFromFileInMemory(LPDIRECT3DDEVICE9 device, LPCVOID src, UINT size);
void ImGui_ImplDX9_ReleaseTexture(LPDIRECT3DTEXTURE9 tex);
int __stdcall MultiByteToWideChar(UINT CodePage, unsigned long dwFlags, const char* lpMultiByteStr, int cbMultiByte, wchar_t* lpWideCharStr, int cchWideChar);
]]
local ImplDX9 = {}
function ImplDX9.new(device, hwnd)
-- ImGui_ImplDX9_Context* ImGui_ImplDX9_Init(LPDIRECT3DDEVICE9 device);
local obj = {}
local d3dcontext = lib.ImGui_ImplDX9_Init(device)
if d3dcontext == nil then
return nil
end
local context = imgui.CreateContext()
obj.ticksPerSecond = ffi.new('INT64[1]', 0)
obj.time = ffi.new('INT64[1]', 0)
imgui.SetCurrentContext(context)
local imio = imgui.GetIO()
imio.BackendRendererName = 'imgui_impl_dx9_lua'
imio.BackendFlags = bit.bor(imio.BackendFlags, lib.ImGuiBackendFlags_RendererHasVtxOffset) -- We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
-- bool ImGui_ImplWin32_Init(HWND hwnd, INT64* ticksPerSecond, INT64* time);
if not lib.ImGui_ImplWin32_Init(hwnd, obj.ticksPerSecond, obj.time) then
-- void ImGui_ImplDX9_Shutdown(ImGui_ImplDX9_Context* context);
lib.ImGui_ImplDX9_Shutdown(d3dcontext)
imgui.DestroyContext(context)
return nil
end
obj.context = context
obj.d3dcontext = d3dcontext
obj.d3ddevice = device
obj.hwnd = hwnd
-- set finalizer
ffi.gc(d3dcontext, function(cd)
imgui.SetCurrentContext(context)
-- void ImGui_ImplDX9_Shutdown(ImGui_ImplDX9_Context* context);
lib.ImGui_ImplDX9_Shutdown(cd)
imgui.DestroyContext(context)
end)
return setmetatable(obj, {__index = ImplDX9})
end
function ImplDX9:SwitchContext()
imgui.SetCurrentContext(self.context)
end
function ImplDX9:NewFrame()
self:SwitchContext()
-- void ImGui_ImplDX9_NewFrame(ImGui_ImplDX9_Context* context);
lib.ImGui_ImplDX9_NewFrame(self.d3dcontext)
-- void ImGui_ImplWin32_NewFrame(HWND hwnd, INT64 ticksPerSecond, INT64* time);
lib.ImGui_ImplWin32_NewFrame(self.hwnd, self.ticksPerSecond[0], self.time)
imgui.NewFrame()
end
function ImplDX9:EndFrame()
self:SwitchContext()
imgui.Render()
-- void ImGui_ImplDX9_RenderDrawData(ImGui_ImplDX9_Context* context, ImDrawData* draw_data);
lib.ImGui_ImplDX9_RenderDrawData(self.d3dcontext, imgui.GetDrawData())
end
function ImplDX9:WindowMessage(msg, wparam, lparam)
self:SwitchContext()
if msg == 0x0102 then -- WM_CHAR
if wparam < 256 then
local char = ffi.new('char[1]', wparam)
local wchar = ffi.new('wchar_t[1]', 0)
if ffi.C.MultiByteToWideChar(0, 0, char, 1, wchar, 1) > 0 then
wparam = wchar[0]
end
end
end
-- LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
return lib.ImGui_ImplWin32_WndProcHandler(self.hwnd, msg, wparam, lparam)
end
function ImplDX9:InvalidateDeviceObjects()
self:SwitchContext()
-- void ImGui_ImplDX9_InvalidateDeviceObjects(ImGui_ImplDX9_Context* context);
lib.ImGui_ImplDX9_InvalidateDeviceObjects(self.d3dcontext)
end
function ImplDX9:CreateTextureFromFile(path)
-- LPDIRECT3DTEXTURE9 ImGui_ImplDX9_CreateTextureFromFile(LPDIRECT3DDEVICE9 device, LPCTSTR path);
local tex = lib.ImGui_ImplDX9_CreateTextureFromFile(self.d3ddevice, path)
if tex == nil then
return nil
end
-- void ImGui_ImplDX9_ReleaseTexture(LPDIRECT3DTEXTURE9 tex);
return ffi.gc(tex, lib.ImGui_ImplDX9_ReleaseTexture)
end
function ImplDX9:CreateTextureFromFileInMemory(src, size)
-- LPDIRECT3DTEXTURE9 ImGui_ImplDX9_CreateTextureFromFileInMemory(LPDIRECT3DDEVICE9 device, LPCVOID src, UINT size);
if type(src) == 'number' then
src = ffi.cast('LPCVOID', src)
end
local tex = lib.ImGui_ImplDX9_CreateTextureFromFileInMemory(self.d3ddevice, src, size)
if tex == nil then
return nil
end
-- void ImGui_ImplDX9_ReleaseTexture(LPDIRECT3DTEXTURE9 tex);
return ffi.gc(tex, lib.ImGui_ImplDX9_ReleaseTexture)
end
function ImplDX9:ReleaseTexture(tex)
ffi.gc(tex, nil)
lib.ImGui_ImplDX9_ReleaseTexture(tex)
end
function ImplDX9:CreateFontsTexture()
self:SwitchContext()
-- bool ImGui_ImplDX9_CreateFontsTexture(ImGui_ImplDX9_Context* context);
return lib.ImGui_ImplDX9_CreateFontsTexture(self.d3dcontext)
end
function ImplDX9:InvalidateFontsTexture()
self:SwitchContext()
-- void ImGui_ImplDX9_InvalidateFontsTexture(ImGui_ImplDX9_Context* context);
lib.ImGui_ImplDX9_InvalidateFontsTexture(self.d3dcontext)
end
return ImplDX9
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