1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/gl/win/GrGLCreateNativeInterface_win.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,315 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +#include "gl/GrGLInterface.h"
1.13 +#include "gl/GrGLUtil.h"
1.14 +#define WIN32_LEAN_AND_MEAN
1.15 +#include <windows.h>
1.16 +
1.17 +/*
1.18 + * Windows makes the GL funcs all be __stdcall instead of __cdecl :(
1.19 + * This implementation will only work if GR_GL_FUNCTION_TYPE is __stdcall.
1.20 + * Otherwise, a springboard would be needed that hides the calling convention.
1.21 + */
1.22 +
1.23 +#define SET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) GetProcAddress(alu.get(), "gl" #F);
1.24 +#define WGL_SET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) wglGetProcAddress("gl" #F);
1.25 +#define WGL_SET_PROC_SUFFIX(F, S) interface->fFunctions.f ## F = (GrGL ## F ## Proc) wglGetProcAddress("gl" #F #S);
1.26 +
1.27 +class AutoLibraryUnload {
1.28 +public:
1.29 + AutoLibraryUnload(const char* moduleName) {
1.30 + fModule = LoadLibrary(moduleName);
1.31 + }
1.32 + ~AutoLibraryUnload() {
1.33 + if (NULL != fModule) {
1.34 + FreeLibrary(fModule);
1.35 + }
1.36 + }
1.37 + HMODULE get() const { return fModule; }
1.38 +
1.39 +private:
1.40 + HMODULE fModule;
1.41 +};
1.42 +
1.43 +const GrGLInterface* GrGLCreateNativeInterface() {
1.44 + AutoLibraryUnload alu("opengl32.dll");
1.45 + if (NULL == alu.get()) {
1.46 + return NULL;
1.47 + }
1.48 +
1.49 + if (NULL != wglGetCurrentContext()) {
1.50 +
1.51 + // These should always be present and don't require wglGetProcAddress
1.52 + GrGLGetStringProc glGetString =
1.53 + (GrGLGetStringProc) GetProcAddress(alu.get(), "glGetString");
1.54 + GrGLGetIntegervProc glGetIntegerv =
1.55 + (GrGLGetIntegervProc) GetProcAddress(alu.get(), "glGetIntegerv");
1.56 + if (NULL == glGetString || NULL == glGetIntegerv) {
1.57 + return NULL;
1.58 + }
1.59 +
1.60 + // This may or may not succeed depending on the gl version.
1.61 + GrGLGetStringiProc glGetStringi = (GrGLGetStringiProc) wglGetProcAddress("glGetStringi");
1.62 +
1.63 + GrGLExtensions extensions;
1.64 + if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetIntegerv)) {
1.65 + return NULL;
1.66 + }
1.67 + const char* versionString = (const char*) glGetString(GR_GL_VERSION);
1.68 + GrGLVersion glVer = GrGLGetVersionFromString(versionString);
1.69 +
1.70 + if (glVer < GR_GL_VER(1,5)) {
1.71 + // We must have array and element_array buffer objects.
1.72 + return NULL;
1.73 + }
1.74 + GrGLInterface* interface = SkNEW(GrGLInterface);
1.75 +
1.76 + // Functions that are part of GL 1.1 will return NULL in
1.77 + // wglGetProcAddress
1.78 + SET_PROC(BindTexture)
1.79 + SET_PROC(BlendFunc)
1.80 +
1.81 + if (glVer >= GR_GL_VER(1,4) ||
1.82 + extensions.has("GL_ARB_imaging") ||
1.83 + extensions.has("GL_EXT_blend_color")) {
1.84 + WGL_SET_PROC(BlendColor);
1.85 + }
1.86 +
1.87 + SET_PROC(Clear)
1.88 + SET_PROC(ClearColor)
1.89 + SET_PROC(ClearStencil)
1.90 + SET_PROC(ColorMask)
1.91 + SET_PROC(CopyTexSubImage2D)
1.92 + SET_PROC(CullFace)
1.93 + SET_PROC(DeleteTextures)
1.94 + SET_PROC(DepthMask)
1.95 + SET_PROC(Disable)
1.96 + SET_PROC(DrawArrays)
1.97 + SET_PROC(DrawElements)
1.98 + SET_PROC(DrawBuffer)
1.99 + SET_PROC(Enable)
1.100 + SET_PROC(FrontFace)
1.101 + SET_PROC(Finish)
1.102 + SET_PROC(Flush)
1.103 + SET_PROC(GenTextures)
1.104 + SET_PROC(GetError)
1.105 + SET_PROC(GetIntegerv)
1.106 + SET_PROC(GetString)
1.107 + SET_PROC(GetTexLevelParameteriv)
1.108 + SET_PROC(LineWidth)
1.109 + SET_PROC(LoadIdentity)
1.110 + SET_PROC(LoadMatrixf)
1.111 + SET_PROC(MatrixMode)
1.112 + SET_PROC(PixelStorei)
1.113 + SET_PROC(ReadBuffer)
1.114 + SET_PROC(ReadPixels)
1.115 + SET_PROC(Scissor)
1.116 + SET_PROC(StencilFunc)
1.117 + SET_PROC(StencilMask)
1.118 + SET_PROC(StencilOp)
1.119 + SET_PROC(TexGenfv)
1.120 + SET_PROC(TexGeni)
1.121 + SET_PROC(TexImage2D)
1.122 + SET_PROC(TexParameteri)
1.123 + SET_PROC(TexParameteriv)
1.124 + if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
1.125 + WGL_SET_PROC(TexStorage2D);
1.126 + } else if (extensions.has("GL_EXT_texture_storage")) {
1.127 + WGL_SET_PROC_SUFFIX(TexStorage2D, EXT);
1.128 + }
1.129 + SET_PROC(TexSubImage2D)
1.130 + SET_PROC(Viewport)
1.131 +
1.132 + WGL_SET_PROC(ActiveTexture);
1.133 + WGL_SET_PROC(AttachShader);
1.134 + WGL_SET_PROC(BeginQuery);
1.135 + WGL_SET_PROC(BindAttribLocation);
1.136 + WGL_SET_PROC(BindBuffer);
1.137 + WGL_SET_PROC(BindFragDataLocation);
1.138 + WGL_SET_PROC(BufferData);
1.139 + WGL_SET_PROC(BufferSubData);
1.140 + WGL_SET_PROC(CompileShader);
1.141 + WGL_SET_PROC(CompressedTexImage2D);
1.142 + WGL_SET_PROC(CreateProgram);
1.143 + WGL_SET_PROC(CreateShader);
1.144 + WGL_SET_PROC(DeleteBuffers);
1.145 + WGL_SET_PROC(DeleteQueries);
1.146 + WGL_SET_PROC(DeleteProgram);
1.147 + WGL_SET_PROC(DeleteShader);
1.148 + WGL_SET_PROC(DisableVertexAttribArray);
1.149 + WGL_SET_PROC(DrawBuffers);
1.150 + WGL_SET_PROC(EnableVertexAttribArray);
1.151 + WGL_SET_PROC(EndQuery);
1.152 + WGL_SET_PROC(GenBuffers);
1.153 + WGL_SET_PROC(GenerateMipmap);
1.154 + WGL_SET_PROC(GenQueries);
1.155 + WGL_SET_PROC(GetBufferParameteriv);
1.156 + WGL_SET_PROC(GetQueryiv);
1.157 + WGL_SET_PROC(GetQueryObjectiv);
1.158 + WGL_SET_PROC(GetQueryObjectuiv);
1.159 + if (glVer > GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) {
1.160 + WGL_SET_PROC(GetQueryObjecti64v);
1.161 + WGL_SET_PROC(GetQueryObjectui64v);
1.162 + WGL_SET_PROC(QueryCounter);
1.163 + } else if (extensions.has("GL_EXT_timer_query")) {
1.164 + WGL_SET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
1.165 + WGL_SET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
1.166 + }
1.167 + WGL_SET_PROC(GetProgramInfoLog);
1.168 + WGL_SET_PROC(GetProgramiv);
1.169 + WGL_SET_PROC(GetShaderInfoLog);
1.170 + WGL_SET_PROC(GetShaderiv);
1.171 + WGL_SET_PROC(GetStringi)
1.172 + WGL_SET_PROC(GetUniformLocation);
1.173 + WGL_SET_PROC(LinkProgram);
1.174 + WGL_SET_PROC(ShaderSource);
1.175 + WGL_SET_PROC(StencilFuncSeparate);
1.176 + WGL_SET_PROC(StencilMaskSeparate);
1.177 + WGL_SET_PROC(StencilOpSeparate);
1.178 + WGL_SET_PROC(Uniform1f);
1.179 + WGL_SET_PROC(Uniform1i);
1.180 + WGL_SET_PROC(Uniform1fv);
1.181 + WGL_SET_PROC(Uniform1iv);
1.182 + WGL_SET_PROC(Uniform2f);
1.183 + WGL_SET_PROC(Uniform2i);
1.184 + WGL_SET_PROC(Uniform2fv);
1.185 + WGL_SET_PROC(Uniform2iv);
1.186 + WGL_SET_PROC(Uniform3f);
1.187 + WGL_SET_PROC(Uniform3i);
1.188 + WGL_SET_PROC(Uniform3fv);
1.189 + WGL_SET_PROC(Uniform3iv);
1.190 + WGL_SET_PROC(Uniform4f);
1.191 + WGL_SET_PROC(Uniform4i);
1.192 + WGL_SET_PROC(Uniform4fv);
1.193 + WGL_SET_PROC(Uniform4iv);
1.194 + WGL_SET_PROC(UniformMatrix2fv);
1.195 + WGL_SET_PROC(UniformMatrix3fv);
1.196 + WGL_SET_PROC(UniformMatrix4fv);
1.197 + WGL_SET_PROC(UseProgram);
1.198 + WGL_SET_PROC(VertexAttrib4fv);
1.199 + WGL_SET_PROC(VertexAttribPointer);
1.200 + WGL_SET_PROC(BindFragDataLocationIndexed);
1.201 +
1.202 + if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) {
1.203 + // no ARB suffix for GL_ARB_vertex_array_object
1.204 + WGL_SET_PROC(BindVertexArray);
1.205 + WGL_SET_PROC(DeleteVertexArrays);
1.206 + WGL_SET_PROC(GenVertexArrays);
1.207 + }
1.208 +
1.209 + // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
1.210 + // GL_ARB_framebuffer_object doesn't use ARB suffix.)
1.211 + if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) {
1.212 + WGL_SET_PROC(GenFramebuffers);
1.213 + WGL_SET_PROC(GetFramebufferAttachmentParameteriv);
1.214 + WGL_SET_PROC(GetRenderbufferParameteriv);
1.215 + WGL_SET_PROC(BindFramebuffer);
1.216 + WGL_SET_PROC(FramebufferTexture2D);
1.217 + WGL_SET_PROC(CheckFramebufferStatus);
1.218 + WGL_SET_PROC(DeleteFramebuffers);
1.219 + WGL_SET_PROC(RenderbufferStorage);
1.220 + WGL_SET_PROC(GenRenderbuffers);
1.221 + WGL_SET_PROC(DeleteRenderbuffers);
1.222 + WGL_SET_PROC(FramebufferRenderbuffer);
1.223 + WGL_SET_PROC(BindRenderbuffer);
1.224 + WGL_SET_PROC(RenderbufferStorageMultisample);
1.225 + WGL_SET_PROC(BlitFramebuffer);
1.226 + } else if (extensions.has("GL_EXT_framebuffer_object")) {
1.227 + WGL_SET_PROC_SUFFIX(GenFramebuffers, EXT);
1.228 + WGL_SET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
1.229 + WGL_SET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
1.230 + WGL_SET_PROC_SUFFIX(BindFramebuffer, EXT);
1.231 + WGL_SET_PROC_SUFFIX(FramebufferTexture2D, EXT);
1.232 + WGL_SET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
1.233 + WGL_SET_PROC_SUFFIX(DeleteFramebuffers, EXT);
1.234 + WGL_SET_PROC_SUFFIX(RenderbufferStorage, EXT);
1.235 + WGL_SET_PROC_SUFFIX(GenRenderbuffers, EXT);
1.236 + WGL_SET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
1.237 + WGL_SET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
1.238 + WGL_SET_PROC_SUFFIX(BindRenderbuffer, EXT);
1.239 + if (extensions.has("GL_EXT_framebuffer_multisample")) {
1.240 + WGL_SET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
1.241 + }
1.242 + if (extensions.has("GL_EXT_framebuffer_blit")) {
1.243 + WGL_SET_PROC_SUFFIX(BlitFramebuffer, EXT);
1.244 + }
1.245 + } else {
1.246 + // we must have FBOs
1.247 + delete interface;
1.248 + return NULL;
1.249 + }
1.250 + WGL_SET_PROC(MapBuffer);
1.251 + WGL_SET_PROC(UnmapBuffer);
1.252 +
1.253 + if (extensions.has("GL_NV_path_rendering")) {
1.254 + WGL_SET_PROC_SUFFIX(PathCommands, NV);
1.255 + WGL_SET_PROC_SUFFIX(PathCoords, NV);
1.256 + WGL_SET_PROC_SUFFIX(PathSubCommands, NV);
1.257 + WGL_SET_PROC_SUFFIX(PathSubCoords, NV);
1.258 + WGL_SET_PROC_SUFFIX(PathString, NV);
1.259 + WGL_SET_PROC_SUFFIX(PathGlyphs, NV);
1.260 + WGL_SET_PROC_SUFFIX(PathGlyphRange, NV);
1.261 + WGL_SET_PROC_SUFFIX(WeightPaths, NV);
1.262 + WGL_SET_PROC_SUFFIX(CopyPath, NV);
1.263 + WGL_SET_PROC_SUFFIX(InterpolatePaths, NV);
1.264 + WGL_SET_PROC_SUFFIX(TransformPath, NV);
1.265 + WGL_SET_PROC_SUFFIX(PathParameteriv, NV);
1.266 + WGL_SET_PROC_SUFFIX(PathParameteri, NV);
1.267 + WGL_SET_PROC_SUFFIX(PathParameterfv, NV);
1.268 + WGL_SET_PROC_SUFFIX(PathParameterf, NV);
1.269 + WGL_SET_PROC_SUFFIX(PathDashArray, NV);
1.270 + WGL_SET_PROC_SUFFIX(GenPaths, NV);
1.271 + WGL_SET_PROC_SUFFIX(DeletePaths, NV);
1.272 + WGL_SET_PROC_SUFFIX(IsPath, NV);
1.273 + WGL_SET_PROC_SUFFIX(PathStencilFunc, NV);
1.274 + WGL_SET_PROC_SUFFIX(PathStencilDepthOffset, NV);
1.275 + WGL_SET_PROC_SUFFIX(StencilFillPath, NV);
1.276 + WGL_SET_PROC_SUFFIX(StencilStrokePath, NV);
1.277 + WGL_SET_PROC_SUFFIX(StencilFillPathInstanced, NV);
1.278 + WGL_SET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
1.279 + WGL_SET_PROC_SUFFIX(PathCoverDepthFunc, NV);
1.280 + WGL_SET_PROC_SUFFIX(PathColorGen, NV);
1.281 + WGL_SET_PROC_SUFFIX(PathTexGen, NV);
1.282 + WGL_SET_PROC_SUFFIX(PathFogGen, NV);
1.283 + WGL_SET_PROC_SUFFIX(CoverFillPath, NV);
1.284 + WGL_SET_PROC_SUFFIX(CoverStrokePath, NV);
1.285 + WGL_SET_PROC_SUFFIX(CoverFillPathInstanced, NV);
1.286 + WGL_SET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
1.287 + WGL_SET_PROC_SUFFIX(GetPathParameteriv, NV);
1.288 + WGL_SET_PROC_SUFFIX(GetPathParameterfv, NV);
1.289 + WGL_SET_PROC_SUFFIX(GetPathCommands, NV);
1.290 + WGL_SET_PROC_SUFFIX(GetPathCoords, NV);
1.291 + WGL_SET_PROC_SUFFIX(GetPathDashArray, NV);
1.292 + WGL_SET_PROC_SUFFIX(GetPathMetrics, NV);
1.293 + WGL_SET_PROC_SUFFIX(GetPathMetricRange, NV);
1.294 + WGL_SET_PROC_SUFFIX(GetPathSpacing, NV);
1.295 + WGL_SET_PROC_SUFFIX(GetPathColorGeniv, NV);
1.296 + WGL_SET_PROC_SUFFIX(GetPathColorGenfv, NV);
1.297 + WGL_SET_PROC_SUFFIX(GetPathTexGeniv, NV);
1.298 + WGL_SET_PROC_SUFFIX(GetPathTexGenfv, NV);
1.299 + WGL_SET_PROC_SUFFIX(IsPointInFillPath, NV);
1.300 + WGL_SET_PROC_SUFFIX(IsPointInStrokePath, NV);
1.301 + WGL_SET_PROC_SUFFIX(GetPathLength, NV);
1.302 + WGL_SET_PROC_SUFFIX(PointAlongPath, NV);
1.303 + }
1.304 +
1.305 + if (extensions.has("GL_EXT_debug_marker")) {
1.306 + WGL_SET_PROC_SUFFIX(InsertEventMarker, EXT);
1.307 + WGL_SET_PROC_SUFFIX(PushGroupMarker, EXT);
1.308 + WGL_SET_PROC_SUFFIX(PopGroupMarker, EXT);
1.309 + }
1.310 +
1.311 + interface->fStandard = kGL_GrGLStandard;
1.312 + interface->fExtensions.swap(&extensions);
1.313 +
1.314 + return interface;
1.315 + } else {
1.316 + return NULL;
1.317 + }
1.318 +}
