| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrGLInterface_DEFINED |
| #define GrGLInterface_DEFINED |
| |
| #include "include/core/SkRefCnt.h" |
| #include "include/gpu/gl/GrGLExtensions.h" |
| #include "include/gpu/gl/GrGLFunctions.h" |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| |
| typedef void(*GrGLFuncPtr)(); |
| struct GrGLInterface; |
| |
| |
| /** |
| * Rather than depend on platform-specific GL headers and libraries, we require |
| * the client to provide a struct of GL function pointers. This struct can be |
| * specified per-GrContext as a parameter to GrContext::MakeGL. If no interface is |
| * passed to MakeGL then a default GL interface is created using GrGLMakeNativeInterface(). |
| * If this returns nullptr then GrContext::MakeGL() will fail. |
| * |
| * The implementation of GrGLMakeNativeInterface is platform-specific. Several |
| * implementations have been provided (for GLX, WGL, EGL, etc), along with an |
| * implementation that simply returns nullptr. Clients should select the most |
| * appropriate one to build. |
| */ |
| SK_API sk_sp<const GrGLInterface> GrGLMakeNativeInterface(); |
| // Deprecated alternative to GrGLMakeNativeInterface(). |
| SK_API const GrGLInterface* GrGLCreateNativeInterface(); |
| |
| /** |
| * GrContext uses the following interface to make all calls into OpenGL. When a |
| * GrContext is created it is given a GrGLInterface. The interface's function |
| * pointers must be valid for the OpenGL context associated with the GrContext. |
| * On some platforms, such as Windows, function pointers for OpenGL extensions |
| * may vary between OpenGL contexts. So the caller must be careful to use a |
| * GrGLInterface initialized for the correct context. All functions that should |
| * be available based on the OpenGL's version and extension string must be |
| * non-NULL or GrContext creation will fail. This can be tested with the |
| * validate() method when the OpenGL context has been made current. |
| */ |
| struct SK_API GrGLInterface : public SkRefCnt { |
| private: |
| typedef SkRefCnt INHERITED; |
| |
| public: |
| GrGLInterface(); |
| |
| // Validates that the GrGLInterface supports its advertised standard. This means the necessary |
| // function pointers have been initialized for both the GL version and any advertised |
| // extensions. |
| bool validate() const; |
| |
| // Indicates the type of GL implementation |
| union { |
| GrGLStandard fStandard; |
| GrGLStandard fBindingsExported; // Legacy name, will be remove when Chromium is updated. |
| }; |
| |
| GrGLExtensions fExtensions; |
| |
| bool hasExtension(const char ext[]) const { return fExtensions.has(ext); } |
| |
| /** |
| * The function pointers are in a struct so that we can have a compiler generated assignment |
| * operator. |
| */ |
| struct Functions { |
| GrGLFunction<GrGLActiveTextureFn> fActiveTexture; |
| GrGLFunction<GrGLAttachShaderFn> fAttachShader; |
| GrGLFunction<GrGLBeginQueryFn> fBeginQuery; |
| GrGLFunction<GrGLBindAttribLocationFn> fBindAttribLocation; |
| GrGLFunction<GrGLBindBufferFn> fBindBuffer; |
| GrGLFunction<GrGLBindFragDataLocationFn> fBindFragDataLocation; |
| GrGLFunction<GrGLBindFragDataLocationIndexedFn> fBindFragDataLocationIndexed; |
| GrGLFunction<GrGLBindFramebufferFn> fBindFramebuffer; |
| GrGLFunction<GrGLBindRenderbufferFn> fBindRenderbuffer; |
| GrGLFunction<GrGLBindSamplerFn> fBindSampler; |
| GrGLFunction<GrGLBindTextureFn> fBindTexture; |
| GrGLFunction<GrGLBindVertexArrayFn> fBindVertexArray; |
| GrGLFunction<GrGLBlendBarrierFn> fBlendBarrier; |
| GrGLFunction<GrGLBlendColorFn> fBlendColor; |
| GrGLFunction<GrGLBlendEquationFn> fBlendEquation; |
| GrGLFunction<GrGLBlendFuncFn> fBlendFunc; |
| GrGLFunction<GrGLBlitFramebufferFn> fBlitFramebuffer; |
| GrGLFunction<GrGLBufferDataFn> fBufferData; |
| GrGLFunction<GrGLBufferSubDataFn> fBufferSubData; |
| GrGLFunction<GrGLCheckFramebufferStatusFn> fCheckFramebufferStatus; |
| GrGLFunction<GrGLClearFn> fClear; |
| GrGLFunction<GrGLClearColorFn> fClearColor; |
| GrGLFunction<GrGLClearStencilFn> fClearStencil; |
| GrGLFunction<GrGLClearTexImageFn> fClearTexImage; |
| GrGLFunction<GrGLClearTexSubImageFn> fClearTexSubImage; |
| GrGLFunction<GrGLColorMaskFn> fColorMask; |
| GrGLFunction<GrGLCompileShaderFn> fCompileShader; |
| GrGLFunction<GrGLCompressedTexImage2DFn> fCompressedTexImage2D; |
| GrGLFunction<GrGLCompressedTexSubImage2DFn> fCompressedTexSubImage2D; |
| GrGLFunction<GrGLCopyTexSubImage2DFn> fCopyTexSubImage2D; |
| GrGLFunction<GrGLCreateProgramFn> fCreateProgram; |
| GrGLFunction<GrGLCreateShaderFn> fCreateShader; |
| GrGLFunction<GrGLCullFaceFn> fCullFace; |
| GrGLFunction<GrGLDeleteBuffersFn> fDeleteBuffers; |
| GrGLFunction<GrGLDeleteFramebuffersFn> fDeleteFramebuffers; |
| GrGLFunction<GrGLDeleteProgramFn> fDeleteProgram; |
| GrGLFunction<GrGLDeleteQueriesFn> fDeleteQueries; |
| GrGLFunction<GrGLDeleteRenderbuffersFn> fDeleteRenderbuffers; |
| GrGLFunction<GrGLDeleteSamplersFn> fDeleteSamplers; |
| GrGLFunction<GrGLDeleteShaderFn> fDeleteShader; |
| GrGLFunction<GrGLDeleteTexturesFn> fDeleteTextures; |
| GrGLFunction<GrGLDeleteVertexArraysFn> fDeleteVertexArrays; |
| GrGLFunction<GrGLDepthMaskFn> fDepthMask; |
| GrGLFunction<GrGLDisableFn> fDisable; |
| GrGLFunction<GrGLDisableVertexAttribArrayFn> fDisableVertexAttribArray; |
| GrGLFunction<GrGLDrawArraysFn> fDrawArrays; |
| GrGLFunction<GrGLDrawArraysIndirectFn> fDrawArraysIndirect; |
| GrGLFunction<GrGLDrawArraysInstancedFn> fDrawArraysInstanced; |
| GrGLFunction<GrGLDrawBufferFn> fDrawBuffer; |
| GrGLFunction<GrGLDrawBuffersFn> fDrawBuffers; |
| GrGLFunction<GrGLDrawElementsFn> fDrawElements; |
| GrGLFunction<GrGLDrawElementsIndirectFn> fDrawElementsIndirect; |
| GrGLFunction<GrGLDrawElementsInstancedFn> fDrawElementsInstanced; |
| GrGLFunction<GrGLDrawRangeElementsFn> fDrawRangeElements; |
| GrGLFunction<GrGLEnableFn> fEnable; |
| GrGLFunction<GrGLEnableVertexAttribArrayFn> fEnableVertexAttribArray; |
| GrGLFunction<GrGLEndQueryFn> fEndQuery; |
| GrGLFunction<GrGLFinishFn> fFinish; |
| GrGLFunction<GrGLFlushFn> fFlush; |
| GrGLFunction<GrGLFlushMappedBufferRangeFn> fFlushMappedBufferRange; |
| GrGLFunction<GrGLFramebufferRenderbufferFn> fFramebufferRenderbuffer; |
| GrGLFunction<GrGLFramebufferTexture2DFn> fFramebufferTexture2D; |
| GrGLFunction<GrGLFramebufferTexture2DMultisampleFn> fFramebufferTexture2DMultisample; |
| GrGLFunction<GrGLFrontFaceFn> fFrontFace; |
| GrGLFunction<GrGLGenBuffersFn> fGenBuffers; |
| GrGLFunction<GrGLGenFramebuffersFn> fGenFramebuffers; |
| GrGLFunction<GrGLGenerateMipmapFn> fGenerateMipmap; |
| GrGLFunction<GrGLGenQueriesFn> fGenQueries; |
| GrGLFunction<GrGLGenRenderbuffersFn> fGenRenderbuffers; |
| GrGLFunction<GrGLGenSamplersFn> fGenSamplers; |
| GrGLFunction<GrGLGenTexturesFn> fGenTextures; |
| GrGLFunction<GrGLGenVertexArraysFn> fGenVertexArrays; |
| GrGLFunction<GrGLGetBufferParameterivFn> fGetBufferParameteriv; |
| GrGLFunction<GrGLGetErrorFn> fGetError; |
| GrGLFunction<GrGLGetFramebufferAttachmentParameterivFn> fGetFramebufferAttachmentParameteriv; |
| GrGLFunction<GrGLGetIntegervFn> fGetIntegerv; |
| GrGLFunction<GrGLGetMultisamplefvFn> fGetMultisamplefv; |
| GrGLFunction<GrGLGetProgramBinaryFn> fGetProgramBinary; |
| GrGLFunction<GrGLGetProgramInfoLogFn> fGetProgramInfoLog; |
| GrGLFunction<GrGLGetProgramivFn> fGetProgramiv; |
| GrGLFunction<GrGLGetQueryObjecti64vFn> fGetQueryObjecti64v; |
| GrGLFunction<GrGLGetQueryObjectivFn> fGetQueryObjectiv; |
| GrGLFunction<GrGLGetQueryObjectui64vFn> fGetQueryObjectui64v; |
| GrGLFunction<GrGLGetQueryObjectuivFn> fGetQueryObjectuiv; |
| GrGLFunction<GrGLGetQueryivFn> fGetQueryiv; |
| GrGLFunction<GrGLGetRenderbufferParameterivFn> fGetRenderbufferParameteriv; |
| GrGLFunction<GrGLGetShaderInfoLogFn> fGetShaderInfoLog; |
| GrGLFunction<GrGLGetShaderivFn> fGetShaderiv; |
| GrGLFunction<GrGLGetShaderPrecisionFormatFn> fGetShaderPrecisionFormat; |
| GrGLFunction<GrGLGetStringFn> fGetString; |
| GrGLFunction<GrGLGetStringiFn> fGetStringi; |
| GrGLFunction<GrGLGetTexLevelParameterivFn> fGetTexLevelParameteriv; |
| GrGLFunction<GrGLGetUniformLocationFn> fGetUniformLocation; |
| GrGLFunction<GrGLInsertEventMarkerFn> fInsertEventMarker; |
| GrGLFunction<GrGLInvalidateBufferDataFn> fInvalidateBufferData; |
| GrGLFunction<GrGLInvalidateBufferSubDataFn> fInvalidateBufferSubData; |
| GrGLFunction<GrGLInvalidateFramebufferFn> fInvalidateFramebuffer; |
| GrGLFunction<GrGLInvalidateSubFramebufferFn> fInvalidateSubFramebuffer; |
| GrGLFunction<GrGLInvalidateTexImageFn> fInvalidateTexImage; |
| GrGLFunction<GrGLInvalidateTexSubImageFn> fInvalidateTexSubImage; |
| GrGLFunction<GrGLIsTextureFn> fIsTexture; |
| GrGLFunction<GrGLLineWidthFn> fLineWidth; |
| GrGLFunction<GrGLLinkProgramFn> fLinkProgram; |
| GrGLFunction<GrGLProgramBinaryFn> fProgramBinary; |
| GrGLFunction<GrGLProgramParameteriFn> fProgramParameteri; |
| GrGLFunction<GrGLMapBufferFn> fMapBuffer; |
| GrGLFunction<GrGLMapBufferRangeFn> fMapBufferRange; |
| GrGLFunction<GrGLMapBufferSubDataFn> fMapBufferSubData; |
| GrGLFunction<GrGLMapTexSubImage2DFn> fMapTexSubImage2D; |
| GrGLFunction<GrGLMultiDrawArraysIndirectFn> fMultiDrawArraysIndirect; |
| GrGLFunction<GrGLMultiDrawElementsIndirectFn> fMultiDrawElementsIndirect; |
| GrGLFunction<GrGLPixelStoreiFn> fPixelStorei; |
| GrGLFunction<GrGLPolygonModeFn> fPolygonMode; |
| GrGLFunction<GrGLPopGroupMarkerFn> fPopGroupMarker; |
| GrGLFunction<GrGLPushGroupMarkerFn> fPushGroupMarker; |
| GrGLFunction<GrGLQueryCounterFn> fQueryCounter; |
| GrGLFunction<GrGLReadBufferFn> fReadBuffer; |
| GrGLFunction<GrGLReadPixelsFn> fReadPixels; |
| GrGLFunction<GrGLRenderbufferStorageFn> fRenderbufferStorage; |
| |
| // On OpenGL ES there are multiple incompatible extensions that add support for MSAA |
| // and ES3 adds MSAA support to the standard. On an ES3 driver we may still use the |
| // older extensions for performance reasons or due to ES3 driver bugs. We want the function |
| // that creates the GrGLInterface to provide all available functions and internally |
| // we will select among them. They all have a method called glRenderbufferStorageMultisample*. |
| // So we have separate function pointers for GL_IMG/EXT_multisampled_to_texture, |
| // GL_CHROMIUM/ANGLE_framebuffer_multisample/ES3, and GL_APPLE_framebuffer_multisample |
| // variations. |
| // |
| // If a driver supports multiple GL_ARB_framebuffer_multisample-style extensions then we will |
| // assume the function pointers for the standard (or equivalent GL_ARB) version have |
| // been preferred over GL_EXT, GL_CHROMIUM, or GL_ANGLE variations that have reduced |
| // functionality. |
| |
| // GL_EXT_multisampled_render_to_texture (preferred) or GL_IMG_multisampled_render_to_texture |
| GrGLFunction<GrGLRenderbufferStorageMultisampleFn> fRenderbufferStorageMultisampleES2EXT; |
| // GL_APPLE_framebuffer_multisample |
| GrGLFunction<GrGLRenderbufferStorageMultisampleFn> fRenderbufferStorageMultisampleES2APPLE; |
| |
| // This is used to store the pointer for GL_ARB/EXT/ANGLE/CHROMIUM_framebuffer_multisample or |
| // the standard function in ES3+ or GL 3.0+. |
| GrGLFunction<GrGLRenderbufferStorageMultisampleFn> fRenderbufferStorageMultisample; |
| |
| // Pointer to BindUniformLocationCHROMIUM from the GL_CHROMIUM_bind_uniform_location extension. |
| GrGLFunction<GrGLBindUniformLocationFn> fBindUniformLocation; |
| |
| GrGLFunction<GrGLResolveMultisampleFramebufferFn> fResolveMultisampleFramebuffer; |
| GrGLFunction<GrGLSamplerParameteriFn> fSamplerParameteri; |
| GrGLFunction<GrGLSamplerParameterivFn> fSamplerParameteriv; |
| GrGLFunction<GrGLScissorFn> fScissor; |
| GrGLFunction<GrGLShaderSourceFn> fShaderSource; |
| GrGLFunction<GrGLStencilFuncFn> fStencilFunc; |
| GrGLFunction<GrGLStencilFuncSeparateFn> fStencilFuncSeparate; |
| GrGLFunction<GrGLStencilMaskFn> fStencilMask; |
| GrGLFunction<GrGLStencilMaskSeparateFn> fStencilMaskSeparate; |
| GrGLFunction<GrGLStencilOpFn> fStencilOp; |
| GrGLFunction<GrGLStencilOpSeparateFn> fStencilOpSeparate; |
| GrGLFunction<GrGLTexBufferFn> fTexBuffer; |
| GrGLFunction<GrGLTexBufferRangeFn> fTexBufferRange; |
| GrGLFunction<GrGLTexImage2DFn> fTexImage2D; |
| GrGLFunction<GrGLTexParameterfFn> fTexParameterf; |
| GrGLFunction<GrGLTexParameterfvFn> fTexParameterfv; |
| GrGLFunction<GrGLTexParameteriFn> fTexParameteri; |
| GrGLFunction<GrGLTexParameterivFn> fTexParameteriv; |
| GrGLFunction<GrGLTexSubImage2DFn> fTexSubImage2D; |
| GrGLFunction<GrGLTexStorage2DFn> fTexStorage2D; |
| GrGLFunction<GrGLTextureBarrierFn> fTextureBarrier; |
| GrGLFunction<GrGLDiscardFramebufferFn> fDiscardFramebuffer; |
| GrGLFunction<GrGLUniform1fFn> fUniform1f; |
| GrGLFunction<GrGLUniform1iFn> fUniform1i; |
| GrGLFunction<GrGLUniform1fvFn> fUniform1fv; |
| GrGLFunction<GrGLUniform1ivFn> fUniform1iv; |
| GrGLFunction<GrGLUniform2fFn> fUniform2f; |
| GrGLFunction<GrGLUniform2iFn> fUniform2i; |
| GrGLFunction<GrGLUniform2fvFn> fUniform2fv; |
| GrGLFunction<GrGLUniform2ivFn> fUniform2iv; |
| GrGLFunction<GrGLUniform3fFn> fUniform3f; |
| GrGLFunction<GrGLUniform3iFn> fUniform3i; |
| GrGLFunction<GrGLUniform3fvFn> fUniform3fv; |
| GrGLFunction<GrGLUniform3ivFn> fUniform3iv; |
| GrGLFunction<GrGLUniform4fFn> fUniform4f; |
| GrGLFunction<GrGLUniform4iFn> fUniform4i; |
| GrGLFunction<GrGLUniform4fvFn> fUniform4fv; |
| GrGLFunction<GrGLUniform4ivFn> fUniform4iv; |
| GrGLFunction<GrGLUniformMatrix2fvFn> fUniformMatrix2fv; |
| GrGLFunction<GrGLUniformMatrix3fvFn> fUniformMatrix3fv; |
| GrGLFunction<GrGLUniformMatrix4fvFn> fUniformMatrix4fv; |
| GrGLFunction<GrGLUnmapBufferFn> fUnmapBuffer; |
| GrGLFunction<GrGLUnmapBufferSubDataFn> fUnmapBufferSubData; |
| GrGLFunction<GrGLUnmapTexSubImage2DFn> fUnmapTexSubImage2D; |
| GrGLFunction<GrGLUseProgramFn> fUseProgram; |
| GrGLFunction<GrGLVertexAttrib1fFn> fVertexAttrib1f; |
| GrGLFunction<GrGLVertexAttrib2fvFn> fVertexAttrib2fv; |
| GrGLFunction<GrGLVertexAttrib3fvFn> fVertexAttrib3fv; |
| GrGLFunction<GrGLVertexAttrib4fvFn> fVertexAttrib4fv; |
| GrGLFunction<GrGLVertexAttribDivisorFn> fVertexAttribDivisor; |
| GrGLFunction<GrGLVertexAttribIPointerFn> fVertexAttribIPointer; |
| GrGLFunction<GrGLVertexAttribPointerFn> fVertexAttribPointer; |
| GrGLFunction<GrGLViewportFn> fViewport; |
| |
| /* GL_NV_path_rendering */ |
| GrGLFunction<GrGLMatrixLoadfFn> fMatrixLoadf; |
| GrGLFunction<GrGLMatrixLoadIdentityFn> fMatrixLoadIdentity; |
| GrGLFunction<GrGLGetProgramResourceLocationFn> fGetProgramResourceLocation; |
| GrGLFunction<GrGLPathCommandsFn> fPathCommands; |
| GrGLFunction<GrGLPathParameteriFn> fPathParameteri; |
| GrGLFunction<GrGLPathParameterfFn> fPathParameterf; |
| GrGLFunction<GrGLGenPathsFn> fGenPaths; |
| GrGLFunction<GrGLDeletePathsFn> fDeletePaths; |
| GrGLFunction<GrGLIsPathFn> fIsPath; |
| GrGLFunction<GrGLPathStencilFuncFn> fPathStencilFunc; |
| GrGLFunction<GrGLStencilFillPathFn> fStencilFillPath; |
| GrGLFunction<GrGLStencilStrokePathFn> fStencilStrokePath; |
| GrGLFunction<GrGLStencilFillPathInstancedFn> fStencilFillPathInstanced; |
| GrGLFunction<GrGLStencilStrokePathInstancedFn> fStencilStrokePathInstanced; |
| GrGLFunction<GrGLCoverFillPathFn> fCoverFillPath; |
| GrGLFunction<GrGLCoverStrokePathFn> fCoverStrokePath; |
| GrGLFunction<GrGLCoverFillPathInstancedFn> fCoverFillPathInstanced; |
| GrGLFunction<GrGLCoverStrokePathInstancedFn> fCoverStrokePathInstanced; |
| // NV_path_rendering v1.2 |
| GrGLFunction<GrGLStencilThenCoverFillPathFn> fStencilThenCoverFillPath; |
| GrGLFunction<GrGLStencilThenCoverStrokePathFn> fStencilThenCoverStrokePath; |
| GrGLFunction<GrGLStencilThenCoverFillPathInstancedFn> fStencilThenCoverFillPathInstanced; |
| GrGLFunction<GrGLStencilThenCoverStrokePathInstancedFn> fStencilThenCoverStrokePathInstanced; |
| // NV_path_rendering v1.3 |
| GrGLFunction<GrGLProgramPathFragmentInputGenFn> fProgramPathFragmentInputGen; |
| // CHROMIUM_path_rendering |
| GrGLFunction<GrGLBindFragmentInputLocationFn> fBindFragmentInputLocation; |
| |
| /* NV_framebuffer_mixed_samples */ |
| GrGLFunction<GrGLCoverageModulationFn> fCoverageModulation; |
| |
| /* ARB_sync */ |
| GrGLFunction<GrGLFenceSyncFn> fFenceSync; |
| GrGLFunction<GrGLIsSyncFn> fIsSync; |
| GrGLFunction<GrGLClientWaitSyncFn> fClientWaitSync; |
| GrGLFunction<GrGLWaitSyncFn> fWaitSync; |
| GrGLFunction<GrGLDeleteSyncFn> fDeleteSync; |
| |
| /* ARB_internalforamt_query */ |
| GrGLFunction<GrGLGetInternalformativFn> fGetInternalformativ; |
| |
| /* KHR_debug */ |
| GrGLFunction<GrGLDebugMessageControlFn> fDebugMessageControl; |
| GrGLFunction<GrGLDebugMessageInsertFn> fDebugMessageInsert; |
| GrGLFunction<GrGLDebugMessageCallbackFn> fDebugMessageCallback; |
| GrGLFunction<GrGLGetDebugMessageLogFn> fGetDebugMessageLog; |
| GrGLFunction<GrGLPushDebugGroupFn> fPushDebugGroup; |
| GrGLFunction<GrGLPopDebugGroupFn> fPopDebugGroup; |
| GrGLFunction<GrGLObjectLabelFn> fObjectLabel; |
| |
| /* EXT_window_rectangles */ |
| GrGLFunction<GrGLWindowRectanglesFn> fWindowRectangles; |
| |
| /* GL_QCOM_tiled_rendering */ |
| GrGLFunction<GrGLStartTilingFn> fStartTiling; |
| GrGLFunction<GrGLEndTilingFn> fEndTiling; |
| } fFunctions; |
| |
| #if GR_TEST_UTILS |
| // This exists for internal testing. |
| virtual void abandon() const; |
| #endif |
| }; |
| |
| #endif |
