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// Modified from chromium/src/webkit/glue/gl_bindings_skia_cmd_buffer.cc
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "gl/GrGLExtensions.h"
#include "gl/GrGLInterface.h"
#ifndef GL_GLEXT_PROTOTYPES
#define GL_GLEXT_PROTOTYPES
#endif
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/egl.h>
const GrGLInterface* GrGLCreateNativeInterface() {
static SkAutoTUnref<GrGLInterface> glInterface;
if (!glInterface.get()) {
GrGLExtensions extensions;
if (!extensions.init(kES_GrGLBinding, glGetString, NULL, glGetIntegerv)) {
return NULL;
}
GrGLInterface* interface = new GrGLInterface;
glInterface.reset(interface);
interface->fBindingsExported = kES_GrGLBinding;
interface->fActiveTexture = glActiveTexture;
interface->fAttachShader = glAttachShader;
interface->fBindAttribLocation = glBindAttribLocation;
interface->fBindBuffer = glBindBuffer;
interface->fBindTexture = glBindTexture;
interface->fBindVertexArray = glBindVertexArrayOES;
interface->fBlendColor = glBlendColor;
interface->fBlendFunc = glBlendFunc;
interface->fBufferData = glBufferData;
interface->fBufferSubData = glBufferSubData;
interface->fClear = glClear;
interface->fClearColor = glClearColor;
interface->fClearStencil = glClearStencil;
interface->fColorMask = glColorMask;
interface->fCompileShader = glCompileShader;
interface->fCompressedTexImage2D = glCompressedTexImage2D;
interface->fCopyTexSubImage2D = glCopyTexSubImage2D;
interface->fCreateProgram = glCreateProgram;
interface->fCreateShader = glCreateShader;
interface->fCullFace = glCullFace;
interface->fDeleteBuffers = glDeleteBuffers;
interface->fDeleteProgram = glDeleteProgram;
interface->fDeleteShader = glDeleteShader;
interface->fDeleteTextures = glDeleteTextures;
interface->fDeleteVertexArrays = glDeleteVertexArraysOES;
interface->fDepthMask = glDepthMask;
interface->fDisable = glDisable;
interface->fDisableVertexAttribArray = glDisableVertexAttribArray;
interface->fDrawArrays = glDrawArrays;
interface->fDrawElements = glDrawElements;
interface->fEnable = glEnable;
interface->fEnableVertexAttribArray = glEnableVertexAttribArray;
interface->fFinish = glFinish;
interface->fFlush = glFlush;
interface->fFrontFace = glFrontFace;
interface->fGenBuffers = glGenBuffers;
interface->fGenerateMipmap = glGenerateMipmap;
interface->fGenTextures = glGenTextures;
interface->fGenVertexArrays = glGenVertexArraysOES;
interface->fGetBufferParameteriv = glGetBufferParameteriv;
interface->fGetError = glGetError;
interface->fGetIntegerv = glGetIntegerv;
interface->fGetProgramInfoLog = glGetProgramInfoLog;
interface->fGetProgramiv = glGetProgramiv;
interface->fGetShaderInfoLog = glGetShaderInfoLog;
interface->fGetShaderiv = glGetShaderiv;
interface->fGetString = glGetString;
interface->fGetUniformLocation = glGetUniformLocation;
interface->fLineWidth = glLineWidth;
interface->fLinkProgram = glLinkProgram;
interface->fPixelStorei = glPixelStorei;
interface->fReadPixels = glReadPixels;
interface->fScissor = glScissor;
#if GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE
interface->fShaderSource = (GrGLShaderSourceProc) glShaderSource;
#else
interface->fShaderSource = glShaderSource;
#endif
interface->fStencilFunc = glStencilFunc;
interface->fStencilFuncSeparate = glStencilFuncSeparate;
interface->fStencilMask = glStencilMask;
interface->fStencilMaskSeparate = glStencilMaskSeparate;
interface->fStencilOp = glStencilOp;
interface->fStencilOpSeparate = glStencilOpSeparate;
interface->fTexImage2D = glTexImage2D;
interface->fTexParameteri = glTexParameteri;
interface->fTexParameteriv = glTexParameteriv;
interface->fTexSubImage2D = glTexSubImage2D;
#if GL_ARB_texture_storage
interface->fTexStorage2D = glTexStorage2D;
#elif GL_EXT_texture_storage
interface->fTexStorage2D = glTexStorage2DEXT;
#else
interface->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2DEXT");
#endif
#if GL_EXT_discard_framebuffer
interface->fDiscardFramebuffer = glDiscardFramebufferEXT;
#endif
interface->fUniform1f = glUniform1f;
interface->fUniform1i = glUniform1i;
interface->fUniform1fv = glUniform1fv;
interface->fUniform1iv = glUniform1iv;
interface->fUniform2f = glUniform2f;
interface->fUniform2i = glUniform2i;
interface->fUniform2fv = glUniform2fv;
interface->fUniform2iv = glUniform2iv;
interface->fUniform3f = glUniform3f;
interface->fUniform3i = glUniform3i;
interface->fUniform3fv = glUniform3fv;
interface->fUniform3iv = glUniform3iv;
interface->fUniform4f = glUniform4f;
interface->fUniform4i = glUniform4i;
interface->fUniform4fv = glUniform4fv;
interface->fUniform4iv = glUniform4iv;
interface->fUniformMatrix2fv = glUniformMatrix2fv;
interface->fUniformMatrix3fv = glUniformMatrix3fv;
interface->fUniformMatrix4fv = glUniformMatrix4fv;
interface->fUseProgram = glUseProgram;
interface->fVertexAttrib4fv = glVertexAttrib4fv;
interface->fVertexAttribPointer = glVertexAttribPointer;
interface->fViewport = glViewport;
interface->fBindFramebuffer = glBindFramebuffer;
interface->fBindRenderbuffer = glBindRenderbuffer;
interface->fCheckFramebufferStatus = glCheckFramebufferStatus;
interface->fDeleteFramebuffers = glDeleteFramebuffers;
interface->fDeleteRenderbuffers = glDeleteRenderbuffers;
interface->fFramebufferRenderbuffer = glFramebufferRenderbuffer;
interface->fFramebufferTexture2D = glFramebufferTexture2D;
if (extensions.has("GL_EXT_multisampled_render_to_texture")) {
#if GL_EXT_multisampled_render_to_texture
interface->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleEXT;
interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisampleEXT;
#else
interface->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleEXT");
interface->fRenderbufferStorageMultisample = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleEXT");
#endif
} else if (extensions.has("GL_IMG_multisampled_render_to_texture")) {
#if GL_IMG_multisampled_render_to_texture
interface->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleIMG;
interface->fRenderbufferStorageMultisample = glRenderbufferStorageMultisampleIMG;
#else
interface->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleIMG");
interface->fRenderbufferStorageMultisample = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleIMG");
#endif
}
interface->fGenFramebuffers = glGenFramebuffers;
interface->fGenRenderbuffers = glGenRenderbuffers;
interface->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv;
interface->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv;
interface->fRenderbufferStorage = glRenderbufferStorage;
#if GL_OES_mapbuffer
interface->fMapBuffer = glMapBufferOES;
interface->fUnmapBuffer = glUnmapBufferOES;
#else
interface->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBufferOES");
interface->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBufferOES");
#endif
}
glInterface.get()->ref();
return glInterface.get();
}
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