src/third_party/skia/src/gpu/gl/angle/GrGLCreateANGLEInterface.cpp

   1
   2 /*
   3  * Copyright 2012 Google Inc.
   4  *
   5  * Use of this source code is governed by a BSD-style license that can be
   6  * found in the LICENSE file.
   7  */
   8
   9
  10 #include "gl/GrGLInterface.h"
  11
  12 #ifndef GL_GLEXT_PROTOTYPES
  13 #define GL_GLEXT_PROTOTYPES
  14 #endif
  15
  16 #include "GLES2/gl2.h"
  17 #include "GLES2/gl2ext.h"
  18 #include "EGL/egl.h"
  19
  20 #define GET_PROC(name)             \
  21     interface->fFunctions.f ## name = (GrGL ## name ## Proc) GetProcAddress(ghANGLELib, "gl" #name);
  22
  23 const GrGLInterface* GrGLCreateANGLEInterface() {
  24
  25     static HMODULE ghANGLELib = NULL;
  26
  27     if (NULL == ghANGLELib) {
  28         // We load the ANGLE library and never let it go
  29         ghANGLELib = LoadLibrary("libGLESv2.dll");
  30     }
  31     if (NULL == ghANGLELib) {
  32         // We can't setup the interface correctly w/o the DLL
  33         return NULL;
  34     }
  35
  36     GrGLInterface* interface = SkNEW(GrGLInterface);
  37     interface->fStandard = kGLES_GrGLStandard;
  38
  39     GrGLInterface::Functions* functions = &interface->fFunctions;
  40
  41     GET_PROC(ActiveTexture);
  42     GET_PROC(AttachShader);
  43     GET_PROC(BindAttribLocation);
  44     GET_PROC(BindBuffer);
  45     GET_PROC(BindTexture);
  46     functions->fBindVertexArray =
  47         (GrGLBindVertexArrayProc) eglGetProcAddress("glBindVertexArrayOES");
  48     GET_PROC(BlendColor);
  49     GET_PROC(BlendFunc);
  50     GET_PROC(BufferData);
  51     GET_PROC(BufferSubData);
  52     GET_PROC(Clear);
  53     GET_PROC(ClearColor);
  54     GET_PROC(ClearStencil);
  55     GET_PROC(ColorMask);
  56     GET_PROC(CompileShader);
  57     GET_PROC(CompressedTexImage2D);
  58     GET_PROC(CopyTexSubImage2D);
  59     GET_PROC(CreateProgram);
  60     GET_PROC(CreateShader);
  61     GET_PROC(CullFace);
  62     GET_PROC(DeleteBuffers);
  63     GET_PROC(DeleteProgram);
  64     GET_PROC(DeleteShader);
  65     GET_PROC(DeleteTextures);
  66     functions->fDeleteVertexArrays =
  67         (GrGLDeleteVertexArraysProc) eglGetProcAddress("glDeleteVertexArraysOES");
  68     GET_PROC(DepthMask);
  69     GET_PROC(Disable);
  70     GET_PROC(DisableVertexAttribArray);
  71     GET_PROC(DrawArrays);
  72     GET_PROC(DrawElements);
  73     GET_PROC(Enable);
  74     GET_PROC(EnableVertexAttribArray);
  75     GET_PROC(Finish);
  76     GET_PROC(Flush);
  77     GET_PROC(FrontFace);
  78     GET_PROC(GenBuffers);
  79     GET_PROC(GenerateMipmap);
  80     GET_PROC(GenTextures);
  81     functions->fGenVertexArrays =
  82         (GrGLGenVertexArraysProc) eglGetProcAddress("glGenVertexArraysOES");
  83     GET_PROC(GetBufferParameteriv);
  84     GET_PROC(GetError);
  85     GET_PROC(GetIntegerv);
  86     GET_PROC(GetProgramInfoLog);
  87     GET_PROC(GetProgramiv);
  88     GET_PROC(GetShaderInfoLog);
  89     GET_PROC(GetShaderiv);
  90     GET_PROC(GetString);
  91     GET_PROC(GetStringi);
  92     GET_PROC(GetUniformLocation);
  93     GET_PROC(LineWidth);
  94     GET_PROC(LinkProgram);
  95     GET_PROC(PixelStorei);
  96     GET_PROC(ReadPixels);
  97     GET_PROC(Scissor);
  98     GET_PROC(ShaderSource);
  99     GET_PROC(StencilFunc);
 100     GET_PROC(StencilFuncSeparate);
 101     GET_PROC(StencilMask);
 102     GET_PROC(StencilMaskSeparate);
 103     GET_PROC(StencilOp);
 104     GET_PROC(StencilOpSeparate);
 105     GET_PROC(TexImage2D);
 106     GET_PROC(TexParameteri);
 107     GET_PROC(TexParameteriv);
 108     GET_PROC(TexSubImage2D);
 109 #if GL_ARB_texture_storage
 110     GET_PROC(TexStorage2D);
 111 #elif GL_EXT_texture_storage
 112     functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2DEXT");
 113 #endif
 114     GET_PROC(Uniform1f);
 115     GET_PROC(Uniform1i);
 116     GET_PROC(Uniform1fv);
 117     GET_PROC(Uniform1iv);
 118
 119     GET_PROC(Uniform2f);
 120     GET_PROC(Uniform2i);
 121     GET_PROC(Uniform2fv);
 122     GET_PROC(Uniform2iv);
 123
 124     GET_PROC(Uniform3f);
 125     GET_PROC(Uniform3i);
 126     GET_PROC(Uniform3fv);
 127     GET_PROC(Uniform3iv);
 128
 129     GET_PROC(Uniform4f);
 130     GET_PROC(Uniform4i);
 131     GET_PROC(Uniform4fv);
 132     GET_PROC(Uniform4iv);
 133
 134     GET_PROC(UniformMatrix2fv);
 135     GET_PROC(UniformMatrix3fv);
 136     GET_PROC(UniformMatrix4fv);
 137     GET_PROC(UseProgram);
 138     GET_PROC(VertexAttrib4fv);
 139     GET_PROC(VertexAttribPointer);
 140     GET_PROC(Viewport);
 141     GET_PROC(BindFramebuffer);
 142     GET_PROC(BindRenderbuffer);
 143     GET_PROC(CheckFramebufferStatus);
 144     GET_PROC(DeleteFramebuffers);
 145     GET_PROC(DeleteRenderbuffers);
 146     GET_PROC(FramebufferRenderbuffer);
 147     GET_PROC(FramebufferTexture2D);
 148     GET_PROC(GenFramebuffers);
 149     GET_PROC(GenRenderbuffers);
 150     GET_PROC(GetFramebufferAttachmentParameteriv);
 151     GET_PROC(GetRenderbufferParameteriv);
 152     GET_PROC(RenderbufferStorage);
 153
 154     functions->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBufferOES");
 155     functions->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBufferOES");
 156
 157 #if GL_ES_VERSION_3_0
 158     functions->fMapBufferRange = GET_PROC(glMapBufferRange);
 159     functions->fFlushMappedBufferRange = GET_PROC(glFlushMappedBufferRange);
 160 #else
 161     functions->fMapBufferRange = (GrGLMapBufferRangeProc) eglGetProcAddress("glMapBufferRange");
 162     functions->fFlushMappedBufferRange = (GrGLFlushMappedBufferRangeProc) eglGetProcAddress("glFlushMappedBufferRange");
 163 #endif
 164
 165     functions->fInsertEventMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glInsertEventMarkerEXT");
 166     functions->fPushGroupMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glPushGroupMarkerEXT");
 167     functions->fPopGroupMarker = (GrGLPopGroupMarkerProc) eglGetProcAddress("glPopGroupMarkerEXT");
 168
 169 #if GL_ES_VERSION_3_0
 170     GET_PROC(InvalidateFramebuffer);
 171     GET_PROC(InvalidateSubFramebuffer);
 172 #else
 173     functions->fInvalidateFramebuffer = (GrGLInvalidateFramebufferProc) eglGetProcAddress("glInvalidateFramebuffer");
 174     functions->fInvalidateSubFramebuffer = (GrGLInvalidateSubFramebufferProc) eglGetProcAddress("glInvalidateSubFramebuffer");
 175 #endif
 176     functions->fInvalidateBufferData = (GrGLInvalidateBufferDataProc) eglGetProcAddress("glInvalidateBufferData");
 177     functions->fInvalidateBufferSubData = (GrGLInvalidateBufferSubDataProc) eglGetProcAddress("glInvalidateBufferSubData");
 178     functions->fInvalidateTexImage = (GrGLInvalidateTexImageProc) eglGetProcAddress("glInvalidateTexImage");
 179     functions->fInvalidateTexSubImage = (GrGLInvalidateTexSubImageProc) eglGetProcAddress("glInvalidateTexSubImage");
 180
 181     interface->fExtensions.init(kGLES_GrGLStandard,
 182                                 functions->fGetString,
 183                                 functions->fGetStringi,
 184                                 functions->fGetIntegerv);
 185     return interface;
 186 }