| // 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/GrGLInterface.h" |
| #include "gl/GrGLAssembleInterface.h" |
| #include "gl/GrGLExtensions.h" |
| #include "gl/GrGLUtil.h" |
| |
| #ifndef GL_GLEXT_PROTOTYPES |
| #define GL_GLEXT_PROTOTYPES |
| #endif |
| |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| |
| #include <EGL/egl.h> |
| |
| static GrGLInterface* create_es_interface(GrGLVersion version, |
| GrGLExtensions* extensions) { |
| if (version < GR_GL_VER(2,0)) { |
| return NULL; |
| } |
| |
| GrGLInterface* interface = SkNEW(GrGLInterface); |
| interface->fStandard = kGLES_GrGLStandard; |
| GrGLInterface::Functions* functions = &interface->fFunctions; |
| |
| functions->fActiveTexture = glActiveTexture; |
| functions->fAttachShader = glAttachShader; |
| functions->fBindAttribLocation = glBindAttribLocation; |
| functions->fBindBuffer = glBindBuffer; |
| functions->fBindTexture = glBindTexture; |
| functions->fBindVertexArray = glBindVertexArrayOES; |
| functions->fBlendColor = glBlendColor; |
| functions->fBlendFunc = glBlendFunc; |
| functions->fBufferData = glBufferData; |
| functions->fBufferSubData = glBufferSubData; |
| functions->fClear = glClear; |
| functions->fClearColor = glClearColor; |
| functions->fClearStencil = glClearStencil; |
| functions->fColorMask = glColorMask; |
| functions->fCompileShader = glCompileShader; |
| functions->fCompressedTexImage2D = glCompressedTexImage2D; |
| functions->fCompressedTexSubImage2D = glCompressedTexSubImage2D; |
| functions->fCopyTexSubImage2D = glCopyTexSubImage2D; |
| functions->fCreateProgram = glCreateProgram; |
| functions->fCreateShader = glCreateShader; |
| functions->fCullFace = glCullFace; |
| functions->fDeleteBuffers = glDeleteBuffers; |
| functions->fDeleteProgram = glDeleteProgram; |
| functions->fDeleteShader = glDeleteShader; |
| functions->fDeleteTextures = glDeleteTextures; |
| functions->fDeleteVertexArrays = glDeleteVertexArraysOES; |
| functions->fDepthMask = glDepthMask; |
| functions->fDisable = glDisable; |
| functions->fDisableVertexAttribArray = glDisableVertexAttribArray; |
| functions->fDrawArrays = glDrawArrays; |
| functions->fDrawElements = glDrawElements; |
| functions->fEnable = glEnable; |
| functions->fEnableVertexAttribArray = glEnableVertexAttribArray; |
| functions->fFinish = glFinish; |
| functions->fFlush = glFlush; |
| functions->fFrontFace = glFrontFace; |
| functions->fGenBuffers = glGenBuffers; |
| functions->fGenerateMipmap = glGenerateMipmap; |
| functions->fGenTextures = glGenTextures; |
| functions->fGenVertexArrays = glGenVertexArraysOES; |
| functions->fGetBufferParameteriv = glGetBufferParameteriv; |
| functions->fGetError = glGetError; |
| functions->fGetIntegerv = glGetIntegerv; |
| functions->fGetProgramInfoLog = glGetProgramInfoLog; |
| functions->fGetProgramiv = glGetProgramiv; |
| functions->fGetShaderInfoLog = glGetShaderInfoLog; |
| functions->fGetShaderiv = glGetShaderiv; |
| functions->fGetString = glGetString; |
| #if GL_ES_VERSION_3_0 |
| functions->fGetStringi = glGetStringi; |
| #else |
| functions->fGetStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi"); |
| #endif |
| functions->fGetUniformLocation = glGetUniformLocation; |
| functions->fLineWidth = glLineWidth; |
| functions->fLinkProgram = glLinkProgram; |
| functions->fPixelStorei = glPixelStorei; |
| functions->fReadPixels = glReadPixels; |
| functions->fScissor = glScissor; |
| #if GR_GL_USE_NEW_SHADER_SOURCE_SIGNATURE |
| functions->fShaderSource = (GrGLShaderSourceProc) glShaderSource; |
| #else |
| functions->fShaderSource = glShaderSource; |
| #endif |
| functions->fStencilFunc = glStencilFunc; |
| functions->fStencilFuncSeparate = glStencilFuncSeparate; |
| functions->fStencilMask = glStencilMask; |
| functions->fStencilMaskSeparate = glStencilMaskSeparate; |
| functions->fStencilOp = glStencilOp; |
| functions->fStencilOpSeparate = glStencilOpSeparate; |
| functions->fTexImage2D = glTexImage2D; |
| functions->fTexParameteri = glTexParameteri; |
| functions->fTexParameteriv = glTexParameteriv; |
| functions->fTexSubImage2D = glTexSubImage2D; |
| |
| if (version >= GR_GL_VER(3,0)) { |
| #if GL_ES_VERSION_3_0 |
| functions->fTexStorage2D = glTexStorage2D; |
| #else |
| functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2D"); |
| #endif |
| } else { |
| #if GL_EXT_texture_storage |
| functions->fTexStorage2D = glTexStorage2DEXT; |
| #else |
| functions->fTexStorage2D = (GrGLTexStorage2DProc) eglGetProcAddress("glTexStorage2DEXT"); |
| #endif |
| } |
| |
| #if GL_EXT_discard_framebuffer |
| functions->fDiscardFramebuffer = glDiscardFramebufferEXT; |
| #endif |
| functions->fUniform1f = glUniform1f; |
| functions->fUniform1i = glUniform1i; |
| functions->fUniform1fv = glUniform1fv; |
| functions->fUniform1iv = glUniform1iv; |
| functions->fUniform2f = glUniform2f; |
| functions->fUniform2i = glUniform2i; |
| functions->fUniform2fv = glUniform2fv; |
| functions->fUniform2iv = glUniform2iv; |
| functions->fUniform3f = glUniform3f; |
| functions->fUniform3i = glUniform3i; |
| functions->fUniform3fv = glUniform3fv; |
| functions->fUniform3iv = glUniform3iv; |
| functions->fUniform4f = glUniform4f; |
| functions->fUniform4i = glUniform4i; |
| functions->fUniform4fv = glUniform4fv; |
| functions->fUniform4iv = glUniform4iv; |
| functions->fUniformMatrix2fv = glUniformMatrix2fv; |
| functions->fUniformMatrix3fv = glUniformMatrix3fv; |
| functions->fUniformMatrix4fv = glUniformMatrix4fv; |
| functions->fUseProgram = glUseProgram; |
| functions->fVertexAttrib4fv = glVertexAttrib4fv; |
| functions->fVertexAttribPointer = glVertexAttribPointer; |
| functions->fViewport = glViewport; |
| functions->fBindFramebuffer = glBindFramebuffer; |
| functions->fBindRenderbuffer = glBindRenderbuffer; |
| functions->fCheckFramebufferStatus = glCheckFramebufferStatus; |
| functions->fDeleteFramebuffers = glDeleteFramebuffers; |
| functions->fDeleteRenderbuffers = glDeleteRenderbuffers; |
| functions->fFramebufferRenderbuffer = glFramebufferRenderbuffer; |
| functions->fFramebufferTexture2D = glFramebufferTexture2D; |
| |
| if (version >= GR_GL_VER(3,0)) { |
| #if GL_ES_VERSION_3_0 |
| functions->fRenderbufferStorageMultisample = glRenderbufferStorageMultisample; |
| functions->fBlitFramebuffer = glBlitFramebuffer; |
| #else |
| functions->fRenderbufferStorageMultisample = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisample"); |
| functions->fBlitFramebuffer = (GrGLBlitFramebufferProc) eglGetProcAddress("glBlitFramebuffer"); |
| #endif |
| } |
| |
| if (extensions->has("GL_EXT_multisampled_render_to_texture")) { |
| #if GL_EXT_multisampled_render_to_texture |
| functions->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleEXT; |
| functions->fRenderbufferStorageMultisampleES2EXT = glRenderbufferStorageMultisampleEXT; |
| #else |
| functions->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleEXT"); |
| functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleEXT"); |
| #endif |
| } else if (extensions->has("GL_IMG_multisampled_render_to_texture")) { |
| #if GL_IMG_multisampled_render_to_texture |
| functions->fFramebufferTexture2DMultisample = glFramebufferTexture2DMultisampleIMG; |
| functions->fRenderbufferStorageMultisampleES2EXT = glRenderbufferStorageMultisampleIMG; |
| #else |
| functions->fFramebufferTexture2DMultisample = (GrGLFramebufferTexture2DMultisampleProc) eglGetProcAddress("glFramebufferTexture2DMultisampleIMG"); |
| functions->fRenderbufferStorageMultisampleES2EXT = (GrGLRenderbufferStorageMultisampleProc) eglGetProcAddress("glRenderbufferStorageMultisampleIMG"); |
| #endif |
| } |
| |
| functions->fGenFramebuffers = glGenFramebuffers; |
| functions->fGenRenderbuffers = glGenRenderbuffers; |
| functions->fGetFramebufferAttachmentParameteriv = glGetFramebufferAttachmentParameteriv; |
| functions->fGetRenderbufferParameteriv = glGetRenderbufferParameteriv; |
| functions->fRenderbufferStorage = glRenderbufferStorage; |
| |
| #if GL_OES_mapbuffer |
| functions->fMapBuffer = glMapBufferOES; |
| functions->fUnmapBuffer = glUnmapBufferOES; |
| #else |
| functions->fMapBuffer = (GrGLMapBufferProc) eglGetProcAddress("glMapBufferOES"); |
| functions->fUnmapBuffer = (GrGLUnmapBufferProc) eglGetProcAddress("glUnmapBufferOES"); |
| |
| #endif |
| |
| if (version >= GR_GL_VER(3,0)) { |
| #if GL_ES_VERSION_3_0 |
| functions->fMapBufferRange = glMapBufferRange; |
| functions->fFlushMappedBufferRange = glFlushMappedBufferRange; |
| #else |
| functions->fMapBufferRange = (GrGLMapBufferRangeProc) eglGetProcAddress("glMapBufferRange"); |
| functions->fFlushMappedBufferRange = (GrGLFlushMappedBufferRangeProc) eglGetProcAddress("glFlushMappedBufferRange"); |
| #endif |
| } else if (extensions->has("GL_EXT_map_buffer_range")) { |
| #if GL_EXT_map_buffer_range |
| functions->fMapBufferRange = glMapBufferRangeEXT; |
| functions->fFlushMappedBufferRange = glFlushMappedBufferRangeEXT; |
| #else |
| functions->fMapBufferRange = (GrGLMapBufferRangeProc) eglGetProcAddress("glMapBufferRangeEXT"); |
| functions->fFlushMappedBufferRange = (GrGLFlushMappedBufferRangeProc) eglGetProcAddress("glFlushMappedBufferRangeEXT"); |
| #endif |
| } |
| |
| if (extensions->has("GL_EXT_debug_marker")) { |
| functions->fInsertEventMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glInsertEventMarker"); |
| functions->fPushGroupMarker = (GrGLInsertEventMarkerProc) eglGetProcAddress("glPushGroupMarker"); |
| functions->fPopGroupMarker = (GrGLPopGroupMarkerProc) eglGetProcAddress("glPopGroupMarker"); |
| // The below check is here because a device has been found that has the extension string but |
| // returns NULL from the eglGetProcAddress for the functions |
| if (NULL == functions->fInsertEventMarker || |
| NULL == functions->fPushGroupMarker || |
| NULL == functions->fPopGroupMarker) { |
| extensions->remove("GL_EXT_debug_marker"); |
| } |
| } |
| |
| #if GL_ES_VERSION_3_0 |
| functions->fInvalidateFramebuffer = glInvalidateFramebuffer; |
| functions->fInvalidateSubFramebuffer = glInvalidateSubFramebuffer; |
| #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"); |
| |
| return interface; |
| } |
| |
| static GrGLFuncPtr android_get_gl_proc(void* ctx, const char name[]) { |
| SkASSERT(NULL == ctx); |
| return eglGetProcAddress(name); |
| } |
| |
| static const GrGLInterface* create_desktop_interface() { |
| return GrGLAssembleGLInterface(NULL, android_get_gl_proc); |
| } |
| |
| const GrGLInterface* GrGLCreateNativeInterface() { |
| |
| const char* verStr = reinterpret_cast<const char*>(glGetString(GR_GL_VERSION)); |
| GrGLStandard standard = GrGLGetStandardInUseFromString(verStr); |
| |
| if (kGLES_GrGLStandard == standard) { |
| GrGLVersion version = GrGLGetVersionFromString(verStr); |
| GrGLExtensions extensions; |
| GrGLGetStringiProc getStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi"); |
| if (!extensions.init(standard, glGetString, getStringi, glGetIntegerv)) { |
| return NULL; |
| } |
| GrGLInterface* interface = create_es_interface(version, &extensions); |
| |
| if (NULL != interface) { |
| interface->fExtensions.swap(&extensions); |
| } |
| |
| return interface; |
| } else if (kGL_GrGLStandard == standard) { |
| return create_desktop_interface(); |
| } |
| |
| return NULL; |
| } |
