Remove reliance on linked in GL functions for assembling GLES interfaces

src/gpu/gl/angle/GrGLCreateANGLEInterface.cpp

 
 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "gl/GrGLInterface.h"
+#include "gl/GrGLAssembleInterface.h"
 
-#ifndef GL_GLEXT_PROTOTYPES
-#define GL_GLEXT_PROTOTYPES
-#endif
-
-#include "GLES2/gl2.h"
-#include "GLES2/gl2ext.h"
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
 #include "EGL/egl.h"
 
-#define GET_PROC(name)             \
-    interface->fFunctions.f ## name = (GrGL ## name ## Proc) GetProcAddress(ghANGLELib, "gl" #name);
+static GrGLFuncPtr angle_get_gl_proc(void* ctx, const char name[]) {
+    GrGLFuncPtr proc = (GrGLFuncPtr) GetProcAddress((HMODULE)ctx, name);
+    if (NULL != proc) {
+        return proc;
+    }
+    return eglGetProcAddress(name);
+}
 
 const GrGLInterface* GrGLCreateANGLEInterface() {
 
     static HMODULE ghANGLELib = NULL;
 
     if (NULL == ghANGLELib) {
         // We load the ANGLE library and never let it go
         ghANGLELib = LoadLibrary("libGLESv2.dll");
     }
     if (NULL == ghANGLELib) {
         // We can't setup the interface correctly w/o the DLL
         return NULL;
     }
 
-    GrGLInterface* interface = SkNEW(GrGLInterface);
-    interface->fStandard = kGLES_GrGLStandard;
-
-    GrGLInterface::Functions* functions = &interface->fFunctions;
-
-    GET_PROC(ActiveTexture);
-    GET_PROC(AttachShader);
-    GET_PROC(BindAttribLocation);
-    GET_PROC(BindBuffer);
-    GET_PROC(BindTexture);
-    functions->fBindVertexArray =
-        (GrGLBindVertexArrayProc) eglGetProcAddress("glBindVertexArrayOES");
-    GET_PROC(BlendColor);
-    GET_PROC(BlendFunc);
-    GET_PROC(BufferData);
-    GET_PROC(BufferSubData);
-    GET_PROC(Clear);
-    GET_PROC(ClearColor);
-    GET_PROC(ClearStencil);
-    GET_PROC(ColorMask);
-    GET_PROC(CompileShader);
-    GET_PROC(CompressedTexImage2D);
-    GET_PROC(CompressedTexSubImage2D);
-    GET_PROC(CopyTexSubImage2D);
-    GET_PROC(CreateProgram);
-    GET_PROC(CreateShader);
-    GET_PROC(CullFace);
-    GET_PROC(DeleteBuffers);
-    GET_PROC(DeleteProgram);
-    GET_PROC(DeleteShader);
-    GET_PROC(DeleteTextures);
-    functions->fDeleteVertexArrays =
-        (GrGLDeleteVertexArraysProc) eglGetProcAddress("glDeleteVertexArraysOES");
-    GET_PROC(DepthMask);
-    GET_PROC(Disable);
-    GET_PROC(DisableVertexAttribArray);
-    GET_PROC(DrawArrays);
-    GET_PROC(DrawElements);
-    GET_PROC(Enable);
-    GET_PROC(EnableVertexAttribArray);
-    GET_PROC(Finish);
-    GET_PROC(Flush);
-    GET_PROC(FrontFace);
-    GET_PROC(GenBuffers);
-    GET_PROC(GenerateMipmap);
-    GET_PROC(GenTextures);
-    functions->fGenVertexArrays =
-        (GrGLGenVertexArraysProc) eglGetProcAddress("glGenVertexArraysOES");
-    GET_PROC(GetBufferParameteriv);
-    GET_PROC(GetError);
-    GET_PROC(GetIntegerv);
-    GET_PROC(GetProgramInfoLog);
-    GET_PROC(GetProgramiv);
-    GET_PROC(GetShaderInfoLog);
-    GET_PROC(GetShaderiv);
-    GET_PROC(GetString);
-    GET_PROC(GetStringi);
-    GET_PROC(GetUniformLocation);
-    GET_PROC(LineWidth);
-    GET_PROC(LinkProgram);
-    GET_PROC(PixelStorei);
-    GET_PROC(ReadPixels);
-    GET_PROC(Scissor);
-    GET_PROC(ShaderSource);
-    GET_PROC(StencilFunc);
-    GET_PROC(StencilFuncSeparate);
-    GET_PROC(StencilMask);
-    GET_PROC(StencilMaskSeparate);
-    GET_PROC(StencilOp);
-    GET_PROC(StencilOpSeparate);
-    GET_PROC(TexImage2D);
-    GET_PROC(TexParameteri);
-    GET_PROC(TexParameteriv);
-    GET_PROC(TexSubImage2D);
-#if GL_ARB_texture_storage
-    GET_PROC(TexStorage2D);
-#elif GL_EXT_texture_storage
-    functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2DEXT");
-#endif
-    GET_PROC(Uniform1f);
-    GET_PROC(Uniform1i);
-    GET_PROC(Uniform1fv);
-    GET_PROC(Uniform1iv);
-
-    GET_PROC(Uniform2f);
-    GET_PROC(Uniform2i);
-    GET_PROC(Uniform2fv);
-    GET_PROC(Uniform2iv);
-
-    GET_PROC(Uniform3f);
-    GET_PROC(Uniform3i);
-    GET_PROC(Uniform3fv);
-    GET_PROC(Uniform3iv);
-
-    GET_PROC(Uniform4f);
-    GET_PROC(Uniform4i);
-    GET_PROC(Uniform4fv);
-    GET_PROC(Uniform4iv);
-
-    GET_PROC(UniformMatrix2fv);
-    GET_PROC(UniformMatrix3fv);
-    GET_PROC(UniformMatrix4fv);
-    GET_PROC(UseProgram);
-    GET_PROC(VertexAttrib4fv);
-    GET_PROC(VertexAttribPointer);
-    GET_PROC(Viewport);
-    GET_PROC(BindFramebuffer);
-    GET_PROC(BindRenderbuffer);
-    GET_PROC(CheckFramebufferStatus);
-    GET_PROC(DeleteFramebuffers);
-    GET_PROC(DeleteRenderbuffers);
-    GET_PROC(FramebufferRenderbuffer);
-    GET_PROC(FramebufferTexture2D);
-    GET_PROC(GenFramebuffers);
-    GET_PROC(GenRenderbuffers);
-    GET_PROC(GetFramebufferAttachmentParameteriv);
-    GET_PROC(GetRenderbufferParameteriv);
-    GET_PROC(RenderbufferStorage);
-
-    functions->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBufferOES");
-    functions->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBufferOES");
-
-#if GL_ES_VERSION_3_0
-    functions->fMapBufferRange = GET_PROC(glMapBufferRange);
-    functions->fFlushMappedBufferRange = GET_PROC(glFlushMappedBufferRange);
-#else
-    functions->fMapBufferRange = (GrGLMapBufferRangeProc) eglGetProcAddress("glMapBufferRange");
-    functions->fFlushMappedBufferRange = (GrGLFlushMappedBufferRangeProc) eglGetProcAddress("glFlushMappedBufferRange");
-#endif
-
-    functions->fInsertEventMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glInsertEventMarkerEXT");
-    functions->fPushGroupMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glPushGroupMarkerEXT");
-    functions->fPopGroupMarker = (GrGLPopGroupMarkerProc) eglGetProcAddress("glPopGroupMarkerEXT");
-
-#if GL_ES_VERSION_3_0
-    GET_PROC(InvalidateFramebuffer);
-    GET_PROC(InvalidateSubFramebuffer);
-#else
-    functions->fInvalidateFramebuffer = (GrGLInvalidateFramebufferProc) eglGetProcAddress("glInvalidateFramebuffer");
-    functions->fInvalidateSubFramebuffer = (GrGLInvalidateSubFramebufferProc) eglGetProcAddress("glInvalidateSubFramebuffer");
-#endif
-    functions->fInvalidateBufferData = (GrGLInvalidateBufferDataProc) eglGetProcAddress("glInvalidateBufferData");
-    functions->fInvalidateBufferSubData = (GrGLInvalidateBufferSubDataProc) eglGetProcAddress("glInvalidateBufferSubData");
-    functions->fInvalidateTexImage = (GrGLInvalidateTexImageProc) eglGetProcAddress("glInvalidateTexImage");
-    functions->fInvalidateTexSubImage = (GrGLInvalidateTexSubImageProc) eglGetProcAddress("glInvalidateTexSubImage");
-
-    interface->fExtensions.init(kGLES_GrGLStandard,
-                                functions->fGetString,
-                                functions->fGetStringi,
-                                functions->fGetIntegerv);
-    return interface;
+    return GrGLAssembleGLESInterface(ghANGLELib, angle_get_gl_proc);
 }