1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/gl/unix/GrGLCreateNativeInterface_unix.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,286 @@
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 +
1.13 +#include "gl/GrGLInterface.h"
1.14 +#include "../GrGLUtil.h"
1.15 +
1.16 +#include <GL/glx.h>
1.17 +#include <GL/gl.h>
1.18 +#include <GL/glext.h>
1.19 +#include <GL/glu.h>
1.20 +
1.21 +#define GR_GL_GET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \
1.22 + glXGetProcAddress(reinterpret_cast<const GLubyte*>("gl" #F));
1.23 +#define GR_GL_GET_PROC_SUFFIX(F, S) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \
1.24 + glXGetProcAddress(reinterpret_cast<const GLubyte*>("gl" #F #S));
1.25 +
1.26 +const GrGLInterface* GrGLCreateNativeInterface() {
1.27 + if (NULL != glXGetCurrentContext()) {
1.28 +
1.29 + const char* versionString = (const char*) glGetString(GL_VERSION);
1.30 + GrGLVersion glVer = GrGLGetVersionFromString(versionString);
1.31 +
1.32 + // This may or may not succeed depending on the gl version.
1.33 + GrGLGetStringiProc glGetStringi =
1.34 + (GrGLGetStringiProc) glXGetProcAddress(reinterpret_cast<const GLubyte*>("glGetStringi"));
1.35 +
1.36 + GrGLExtensions extensions;
1.37 + if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetIntegerv)) {
1.38 + return NULL;
1.39 + }
1.40 +
1.41 + if (glVer < GR_GL_VER(1,5)) {
1.42 + // We must have array and element_array buffer objects.
1.43 + return NULL;
1.44 + }
1.45 +
1.46 + GrGLInterface* interface = SkNEW(GrGLInterface());
1.47 + GrGLInterface::Functions* functions = &interface->fFunctions;
1.48 +
1.49 + functions->fActiveTexture = glActiveTexture;
1.50 + GR_GL_GET_PROC(AttachShader);
1.51 + GR_GL_GET_PROC(BindAttribLocation);
1.52 + GR_GL_GET_PROC(BindBuffer);
1.53 + GR_GL_GET_PROC(BindFragDataLocation);
1.54 + GR_GL_GET_PROC(BeginQuery);
1.55 + functions->fBindTexture = glBindTexture;
1.56 + functions->fBlendFunc = glBlendFunc;
1.57 +
1.58 + if (glVer >= GR_GL_VER(1,4) ||
1.59 + extensions.has("GL_ARB_imaging") ||
1.60 + extensions.has("GL_EXT_blend_color")) {
1.61 + GR_GL_GET_PROC(BlendColor);
1.62 + }
1.63 +
1.64 + GR_GL_GET_PROC(BufferData);
1.65 + GR_GL_GET_PROC(BufferSubData);
1.66 + functions->fClear = glClear;
1.67 + functions->fClearColor = glClearColor;
1.68 + functions->fClearStencil = glClearStencil;
1.69 + functions->fColorMask = glColorMask;
1.70 + GR_GL_GET_PROC(CompileShader);
1.71 + functions->fCompressedTexImage2D = glCompressedTexImage2D;
1.72 + functions->fCopyTexSubImage2D = glCopyTexSubImage2D;
1.73 + GR_GL_GET_PROC(CreateProgram);
1.74 + GR_GL_GET_PROC(CreateShader);
1.75 + functions->fCullFace = glCullFace;
1.76 + GR_GL_GET_PROC(DeleteBuffers);
1.77 + GR_GL_GET_PROC(DeleteProgram);
1.78 + GR_GL_GET_PROC(DeleteQueries);
1.79 + GR_GL_GET_PROC(DeleteShader);
1.80 + functions->fDeleteTextures = glDeleteTextures;
1.81 + functions->fDepthMask = glDepthMask;
1.82 + functions->fDisable = glDisable;
1.83 + GR_GL_GET_PROC(DisableVertexAttribArray);
1.84 + functions->fDrawArrays = glDrawArrays;
1.85 + functions->fDrawBuffer = glDrawBuffer;
1.86 + GR_GL_GET_PROC(DrawBuffers);
1.87 + functions->fDrawElements = glDrawElements;
1.88 + functions->fEnable = glEnable;
1.89 + GR_GL_GET_PROC(EnableVertexAttribArray);
1.90 + GR_GL_GET_PROC(EndQuery);
1.91 + functions->fFinish = glFinish;
1.92 + functions->fFlush = glFlush;
1.93 + functions->fFrontFace = glFrontFace;
1.94 + GR_GL_GET_PROC(GenBuffers);
1.95 + GR_GL_GET_PROC(GenerateMipmap);
1.96 + GR_GL_GET_PROC(GetBufferParameteriv);
1.97 + functions->fGetError = glGetError;
1.98 + functions->fGetIntegerv = glGetIntegerv;
1.99 + GR_GL_GET_PROC(GetQueryObjectiv);
1.100 + GR_GL_GET_PROC(GetQueryObjectuiv);
1.101 + if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) {
1.102 + GR_GL_GET_PROC(GetQueryObjecti64v);
1.103 + GR_GL_GET_PROC(GetQueryObjectui64v);
1.104 + GR_GL_GET_PROC(QueryCounter);
1.105 + } else if (extensions.has("GL_EXT_timer_query")) {
1.106 + GR_GL_GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
1.107 + GR_GL_GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
1.108 + }
1.109 + GR_GL_GET_PROC(GetQueryiv);
1.110 + GR_GL_GET_PROC(GetProgramInfoLog);
1.111 + GR_GL_GET_PROC(GetProgramiv);
1.112 + GR_GL_GET_PROC(GetShaderInfoLog);
1.113 + GR_GL_GET_PROC(GetShaderiv);
1.114 + functions->fGetString = glGetString;
1.115 + GR_GL_GET_PROC(GetStringi);
1.116 + functions->fGetTexLevelParameteriv = glGetTexLevelParameteriv;
1.117 + GR_GL_GET_PROC(GenQueries);
1.118 + functions->fGenTextures = glGenTextures;
1.119 + GR_GL_GET_PROC(GetUniformLocation);
1.120 + functions->fLineWidth = glLineWidth;
1.121 + GR_GL_GET_PROC(LinkProgram);
1.122 + GR_GL_GET_PROC(MapBuffer);
1.123 + functions->fPixelStorei = glPixelStorei;
1.124 + functions->fReadBuffer = glReadBuffer;
1.125 + functions->fReadPixels = glReadPixels;
1.126 + functions->fScissor = glScissor;
1.127 + GR_GL_GET_PROC(ShaderSource);
1.128 + functions->fStencilFunc = glStencilFunc;
1.129 + GR_GL_GET_PROC(StencilFuncSeparate);
1.130 + functions->fStencilMask = glStencilMask;
1.131 + GR_GL_GET_PROC(StencilMaskSeparate);
1.132 + functions->fStencilOp = glStencilOp;
1.133 + GR_GL_GET_PROC(StencilOpSeparate);
1.134 + functions->fTexImage2D = glTexImage2D;
1.135 + functions->fTexGenfv = glTexGenfv;
1.136 + functions->fTexGeni = glTexGeni;
1.137 + functions->fTexParameteri = glTexParameteri;
1.138 + functions->fTexParameteriv = glTexParameteriv;
1.139 + if (glVer >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
1.140 + GR_GL_GET_PROC(TexStorage2D);
1.141 + } else if (extensions.has("GL_EXT_texture_storage")) {
1.142 + GR_GL_GET_PROC_SUFFIX(TexStorage2D, EXT);
1.143 + }
1.144 + functions->fTexSubImage2D = glTexSubImage2D;
1.145 + GR_GL_GET_PROC(Uniform1f);
1.146 + GR_GL_GET_PROC(Uniform1i);
1.147 + GR_GL_GET_PROC(Uniform1fv);
1.148 + GR_GL_GET_PROC(Uniform1iv);
1.149 + GR_GL_GET_PROC(Uniform2f);
1.150 + GR_GL_GET_PROC(Uniform2i);
1.151 + GR_GL_GET_PROC(Uniform2fv);
1.152 + GR_GL_GET_PROC(Uniform2iv);
1.153 + GR_GL_GET_PROC(Uniform3f);
1.154 + GR_GL_GET_PROC(Uniform3i);
1.155 + GR_GL_GET_PROC(Uniform3fv);
1.156 + GR_GL_GET_PROC(Uniform3iv);
1.157 + GR_GL_GET_PROC(Uniform4f);
1.158 + GR_GL_GET_PROC(Uniform4i);
1.159 + GR_GL_GET_PROC(Uniform4fv);
1.160 + GR_GL_GET_PROC(Uniform4iv);
1.161 + GR_GL_GET_PROC(UniformMatrix2fv);
1.162 + GR_GL_GET_PROC(UniformMatrix3fv);
1.163 + GR_GL_GET_PROC(UniformMatrix4fv);
1.164 + GR_GL_GET_PROC(UnmapBuffer);
1.165 + GR_GL_GET_PROC(UseProgram);
1.166 + GR_GL_GET_PROC(VertexAttrib4fv);
1.167 + GR_GL_GET_PROC(VertexAttribPointer);
1.168 + functions->fViewport = glViewport;
1.169 + GR_GL_GET_PROC(BindFragDataLocationIndexed);
1.170 +
1.171 + if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) {
1.172 + // no ARB suffix for GL_ARB_vertex_array_object
1.173 + GR_GL_GET_PROC(BindVertexArray);
1.174 + GR_GL_GET_PROC(GenVertexArrays);
1.175 + GR_GL_GET_PROC(DeleteVertexArrays);
1.176 + }
1.177 +
1.178 + // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since
1.179 + // GL_ARB_framebuffer_object doesn't use ARB suffix.)
1.180 + if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) {
1.181 + GR_GL_GET_PROC(GenFramebuffers);
1.182 + GR_GL_GET_PROC(GetFramebufferAttachmentParameteriv);
1.183 + GR_GL_GET_PROC(GetRenderbufferParameteriv);
1.184 + GR_GL_GET_PROC(BindFramebuffer);
1.185 + GR_GL_GET_PROC(FramebufferTexture2D);
1.186 + GR_GL_GET_PROC(CheckFramebufferStatus);
1.187 + GR_GL_GET_PROC(DeleteFramebuffers);
1.188 + GR_GL_GET_PROC(RenderbufferStorage);
1.189 + GR_GL_GET_PROC(GenRenderbuffers);
1.190 + GR_GL_GET_PROC(DeleteRenderbuffers);
1.191 + GR_GL_GET_PROC(FramebufferRenderbuffer);
1.192 + GR_GL_GET_PROC(BindRenderbuffer);
1.193 + GR_GL_GET_PROC(RenderbufferStorageMultisample);
1.194 + GR_GL_GET_PROC(BlitFramebuffer);
1.195 + } else if (extensions.has("GL_EXT_framebuffer_object")) {
1.196 + GR_GL_GET_PROC_SUFFIX(GenFramebuffers, EXT);
1.197 + GR_GL_GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
1.198 + GR_GL_GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
1.199 + GR_GL_GET_PROC_SUFFIX(BindFramebuffer, EXT);
1.200 + GR_GL_GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
1.201 + GR_GL_GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
1.202 + GR_GL_GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
1.203 + GR_GL_GET_PROC_SUFFIX(RenderbufferStorage, EXT);
1.204 + GR_GL_GET_PROC_SUFFIX(GenRenderbuffers, EXT);
1.205 + GR_GL_GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
1.206 + GR_GL_GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
1.207 + GR_GL_GET_PROC_SUFFIX(BindRenderbuffer, EXT);
1.208 + if (extensions.has("GL_EXT_framebuffer_multisample")) {
1.209 + GR_GL_GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
1.210 + }
1.211 + if (extensions.has("GL_EXT_framebuffer_blit")) {
1.212 + GR_GL_GET_PROC_SUFFIX(BlitFramebuffer, EXT);
1.213 + }
1.214 + } else {
1.215 + // we must have FBOs
1.216 + delete interface;
1.217 + return NULL;
1.218 + }
1.219 +
1.220 + GR_GL_GET_PROC(LoadIdentity);
1.221 + GR_GL_GET_PROC(LoadMatrixf);
1.222 + GR_GL_GET_PROC(MatrixMode);
1.223 +
1.224 + if (extensions.has("GL_NV_path_rendering")) {
1.225 + GR_GL_GET_PROC_SUFFIX(PathCommands, NV);
1.226 + GR_GL_GET_PROC_SUFFIX(PathCoords, NV);
1.227 + GR_GL_GET_PROC_SUFFIX(PathSubCommands, NV);
1.228 + GR_GL_GET_PROC_SUFFIX(PathSubCoords, NV);
1.229 + GR_GL_GET_PROC_SUFFIX(PathString, NV);
1.230 + GR_GL_GET_PROC_SUFFIX(PathGlyphs, NV);
1.231 + GR_GL_GET_PROC_SUFFIX(PathGlyphRange, NV);
1.232 + GR_GL_GET_PROC_SUFFIX(WeightPaths, NV);
1.233 + GR_GL_GET_PROC_SUFFIX(CopyPath, NV);
1.234 + GR_GL_GET_PROC_SUFFIX(InterpolatePaths, NV);
1.235 + GR_GL_GET_PROC_SUFFIX(TransformPath, NV);
1.236 + GR_GL_GET_PROC_SUFFIX(PathParameteriv, NV);
1.237 + GR_GL_GET_PROC_SUFFIX(PathParameteri, NV);
1.238 + GR_GL_GET_PROC_SUFFIX(PathParameterfv, NV);
1.239 + GR_GL_GET_PROC_SUFFIX(PathParameterf, NV);
1.240 + GR_GL_GET_PROC_SUFFIX(PathDashArray, NV);
1.241 + GR_GL_GET_PROC_SUFFIX(GenPaths, NV);
1.242 + GR_GL_GET_PROC_SUFFIX(DeletePaths, NV);
1.243 + GR_GL_GET_PROC_SUFFIX(IsPath, NV);
1.244 + GR_GL_GET_PROC_SUFFIX(PathStencilFunc, NV);
1.245 + GR_GL_GET_PROC_SUFFIX(PathStencilDepthOffset, NV);
1.246 + GR_GL_GET_PROC_SUFFIX(StencilFillPath, NV);
1.247 + GR_GL_GET_PROC_SUFFIX(StencilStrokePath, NV);
1.248 + GR_GL_GET_PROC_SUFFIX(StencilFillPathInstanced, NV);
1.249 + GR_GL_GET_PROC_SUFFIX(StencilStrokePathInstanced, NV);
1.250 + GR_GL_GET_PROC_SUFFIX(PathCoverDepthFunc, NV);
1.251 + GR_GL_GET_PROC_SUFFIX(PathColorGen, NV);
1.252 + GR_GL_GET_PROC_SUFFIX(PathTexGen, NV);
1.253 + GR_GL_GET_PROC_SUFFIX(PathFogGen, NV);
1.254 + GR_GL_GET_PROC_SUFFIX(CoverFillPath, NV);
1.255 + GR_GL_GET_PROC_SUFFIX(CoverStrokePath, NV);
1.256 + GR_GL_GET_PROC_SUFFIX(CoverFillPathInstanced, NV);
1.257 + GR_GL_GET_PROC_SUFFIX(CoverStrokePathInstanced, NV);
1.258 + GR_GL_GET_PROC_SUFFIX(GetPathParameteriv, NV);
1.259 + GR_GL_GET_PROC_SUFFIX(GetPathParameterfv, NV);
1.260 + GR_GL_GET_PROC_SUFFIX(GetPathCommands, NV);
1.261 + GR_GL_GET_PROC_SUFFIX(GetPathCoords, NV);
1.262 + GR_GL_GET_PROC_SUFFIX(GetPathDashArray, NV);
1.263 + GR_GL_GET_PROC_SUFFIX(GetPathMetrics, NV);
1.264 + GR_GL_GET_PROC_SUFFIX(GetPathMetricRange, NV);
1.265 + GR_GL_GET_PROC_SUFFIX(GetPathSpacing, NV);
1.266 + GR_GL_GET_PROC_SUFFIX(GetPathColorGeniv, NV);
1.267 + GR_GL_GET_PROC_SUFFIX(GetPathColorGenfv, NV);
1.268 + GR_GL_GET_PROC_SUFFIX(GetPathTexGeniv, NV);
1.269 + GR_GL_GET_PROC_SUFFIX(GetPathTexGenfv, NV);
1.270 + GR_GL_GET_PROC_SUFFIX(IsPointInFillPath, NV);
1.271 + GR_GL_GET_PROC_SUFFIX(IsPointInStrokePath, NV);
1.272 + GR_GL_GET_PROC_SUFFIX(GetPathLength, NV);
1.273 + GR_GL_GET_PROC_SUFFIX(PointAlongPath, NV);
1.274 + }
1.275 +
1.276 + if (extensions.has("GL_EXT_debug_marker")) {
1.277 + GR_GL_GET_PROC_SUFFIX(InsertEventMarker, EXT);
1.278 + GR_GL_GET_PROC_SUFFIX(PushGroupMarker, EXT);
1.279 + GR_GL_GET_PROC_SUFFIX(PopGroupMarker, EXT);
1.280 + }
1.281 +
1.282 + interface->fStandard = kGL_GrGLStandard;
1.283 + interface->fExtensions.swap(&extensions);
1.284 +
1.285 + return interface;
1.286 + } else {
1.287 + return NULL;
1.288 + }
1.289 +}
