kc3-lang/angle/src/libANGLE/renderer/gl/StateManagerGL.h

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• Hash : a797e066
  Author :
  Date : 2016-05-12T15:23:40
  

  Support CHROMIUM_framebuffer_mixed_samples in the GL backend
  
  BUG=angleproject:1378
  
  Change-Id: I634c41f3507dbdeaa56234c4de1b498f81c848ed
  Reviewed-on: https://chromium-review.googlesource.com/344520
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Sami Väisänen <svaisanen@nvidia.com>
  

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• src/libANGLE/renderer/gl/StateManagerGL.h

• //
  // Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // StateManagerGL.h: Defines a class for caching applied OpenGL state
  
  #ifndef LIBANGLE_RENDERER_GL_STATEMANAGERGL_H_
  #define LIBANGLE_RENDERER_GL_STATEMANAGERGL_H_
  
  #include "common/debug.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/State.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/gl/functionsgl_typedefs.h"
  
  #include <map>
  
  namespace gl
  {
  struct Caps;
  struct ContextState;
  class State;
  }
  
  namespace rx
  {
  
  class FunctionsGL;
  class TransformFeedbackGL;
  class QueryGL;
  
  class StateManagerGL final : angle::NonCopyable
  {
    public:
      StateManagerGL(const FunctionsGL *functions, const gl::Caps &rendererCaps);
  
      void deleteProgram(GLuint program);
      void deleteVertexArray(GLuint vao);
      void deleteTexture(GLuint texture);
      void deleteSampler(GLuint sampler);
      void deleteBuffer(GLuint buffer);
      void deleteFramebuffer(GLuint fbo);
      void deleteRenderbuffer(GLuint rbo);
      void deleteTransformFeedback(GLuint transformFeedback);
      void deleteQuery(GLuint query);
  
      void useProgram(GLuint program);
      void forceUseProgram(GLuint program);
      void bindVertexArray(GLuint vao, GLuint elementArrayBuffer);
      void bindBuffer(GLenum type, GLuint buffer);
      void bindBufferBase(GLenum type, size_t index, GLuint buffer);
      void bindBufferRange(GLenum type, size_t index, GLuint buffer, size_t offset, size_t size);
      void activeTexture(size_t unit);
      void bindTexture(GLenum type, GLuint texture);
      void bindSampler(size_t unit, GLuint sampler);
      void bindFramebuffer(GLenum type, GLuint framebuffer);
      void bindRenderbuffer(GLenum type, GLuint renderbuffer);
      void bindTransformFeedback(GLenum type, GLuint transformFeedback);
      void beginQuery(GLenum type, GLuint query);
      void endQuery(GLenum type, GLuint query);
      void onBeginQuery(QueryGL *query);
  
      void setAttributeCurrentData(size_t index, const gl::VertexAttribCurrentValueData &data);
  
      void setScissorTestEnabled(bool enabled);
      void setScissor(const gl::Rectangle &scissor);
  
      void setViewport(const gl::Rectangle &viewport);
      void setDepthRange(float near, float far);
  
      void setBlendEnabled(bool enabled);
      void setBlendColor(const gl::ColorF &blendColor);
      void setBlendFuncs(GLenum sourceBlendRGB,
                         GLenum destBlendRGB,
                         GLenum sourceBlendAlpha,
                         GLenum destBlendAlpha);
      void setBlendEquations(GLenum blendEquationRGB, GLenum blendEquationAlpha);
      void setColorMask(bool red, bool green, bool blue, bool alpha);
      void setSampleAlphaToCoverageEnabled(bool enabled);
      void setSampleCoverageEnabled(bool enabled);
      void setSampleCoverage(float value, bool invert);
  
      void setDepthTestEnabled(bool enabled);
      void setDepthFunc(GLenum depthFunc);
      void setDepthMask(bool mask);
      void setStencilTestEnabled(bool enabled);
      void setStencilFrontWritemask(GLuint mask);
      void setStencilBackWritemask(GLuint mask);
      void setStencilFrontFuncs(GLenum func, GLint ref, GLuint mask);
      void setStencilBackFuncs(GLenum func, GLint ref, GLuint mask);
      void setStencilFrontOps(GLenum sfail, GLenum dpfail, GLenum dppass);
      void setStencilBackOps(GLenum sfail, GLenum dpfail, GLenum dppass);
  
      void setCullFaceEnabled(bool enabled);
      void setCullFace(GLenum cullFace);
      void setFrontFace(GLenum frontFace);
      void setPolygonOffsetFillEnabled(bool enabled);
      void setPolygonOffset(float factor, float units);
      void setRasterizerDiscardEnabled(bool enabled);
      void setLineWidth(float width);
  
      void setPrimitiveRestartEnabled(bool enabled);
  
      void setClearColor(const gl::ColorF &clearColor);
      void setClearDepth(float clearDepth);
      void setClearStencil(GLint clearStencil);
  
      void setPixelUnpackState(const gl::PixelUnpackState &unpack);
      void setPixelUnpackState(GLint alignment,
                               GLint rowLength,
                               GLint skipRows,
                               GLint skipPixels,
                               GLint imageHeight,
                               GLint skipImages,
                               GLuint unpackBuffer);
      void setPixelPackState(const gl::PixelPackState &pack);
      void setPixelPackState(GLint alignment,
                             GLint rowLength,
                             GLint skipRows,
                             GLint skipPixels,
                             GLuint packBuffer);
  
      void setFramebufferSRGBEnabled(bool enabled);
  
      void setMultisamplingStateEnabled(bool enabled);
      void setSampleAlphaToOneStateEnabled(bool enabled);
  
      void setCoverageModulation(GLenum components);
  
      void onDeleteQueryObject(QueryGL *query);
  
      gl::Error setDrawArraysState(const gl::ContextState &data,
                                   GLint first,
                                   GLsizei count,
                                   GLsizei instanceCount);
      gl::Error setDrawElementsState(const gl::ContextState &data,
                                     GLsizei count,
                                     GLenum type,
                                     const GLvoid *indices,
                                     GLsizei instanceCount,
                                     const GLvoid **outIndices);
  
      gl::Error onMakeCurrent(const gl::ContextState &data);
  
      void syncState(const gl::State &state, const gl::State::DirtyBits &glDirtyBits);
  
    private:
      gl::Error setGenericDrawState(const gl::ContextState &data);
  
      void setTextureCubemapSeamlessEnabled(bool enabled);
  
      const FunctionsGL *mFunctions;
  
      GLuint mProgram;
  
      GLuint mVAO;
      std::vector<gl::VertexAttribCurrentValueData> mVertexAttribCurrentValues;
  
      std::map<GLenum, GLuint> mBuffers;
  
      struct IndexedBufferBinding
      {
          IndexedBufferBinding();
  
          size_t offset;
          size_t size;
          GLuint buffer;
      };
      std::map<GLenum, std::vector<IndexedBufferBinding>> mIndexedBuffers;
  
      size_t mTextureUnitIndex;
      std::map<GLenum, std::vector<GLuint>> mTextures;
      std::vector<GLuint> mSamplers;
  
      GLuint mTransformFeedback;
  
      std::map<GLenum, GLuint> mQueries;
  
      TransformFeedbackGL *mPrevDrawTransformFeedback;
      std::set<QueryGL *> mCurrentQueries;
      uintptr_t mPrevDrawContext;
  
      GLint mUnpackAlignment;
      GLint mUnpackRowLength;
      GLint mUnpackSkipRows;
      GLint mUnpackSkipPixels;
      GLint mUnpackImageHeight;
      GLint mUnpackSkipImages;
  
      GLint mPackAlignment;
      GLint mPackRowLength;
      GLint mPackSkipRows;
      GLint mPackSkipPixels;
  
      // TODO(jmadill): Convert to std::array when available
      std::vector<GLenum> mFramebuffers;
      GLuint mRenderbuffer;
  
      bool mScissorTestEnabled;
      gl::Rectangle mScissor;
  
      gl::Rectangle mViewport;
      float mNear;
      float mFar;
  
      bool mBlendEnabled;
      gl::ColorF mBlendColor;
      GLenum mSourceBlendRGB;
      GLenum mDestBlendRGB;
      GLenum mSourceBlendAlpha;
      GLenum mDestBlendAlpha;
      GLenum mBlendEquationRGB;
      GLenum mBlendEquationAlpha;
      bool mColorMaskRed;
      bool mColorMaskGreen;
      bool mColorMaskBlue;
      bool mColorMaskAlpha;
      bool mSampleAlphaToCoverageEnabled;
      bool mSampleCoverageEnabled;
      float mSampleCoverageValue;
      bool mSampleCoverageInvert;
  
      bool mDepthTestEnabled;
      GLenum mDepthFunc;
      bool mDepthMask;
      bool mStencilTestEnabled;
      GLenum mStencilFrontFunc;
      GLint mStencilFrontRef;
      GLuint mStencilFrontValueMask;
      GLenum mStencilFrontStencilFailOp;
      GLenum mStencilFrontStencilPassDepthFailOp;
      GLenum mStencilFrontStencilPassDepthPassOp;
      GLuint mStencilFrontWritemask;
      GLenum mStencilBackFunc;
      GLint mStencilBackRef;
      GLuint mStencilBackValueMask;
      GLenum mStencilBackStencilFailOp;
      GLenum mStencilBackStencilPassDepthFailOp;
      GLenum mStencilBackStencilPassDepthPassOp;
      GLuint mStencilBackWritemask;
  
      bool mCullFaceEnabled;
      GLenum mCullFace;
      GLenum mFrontFace;
      bool mPolygonOffsetFillEnabled;
      GLfloat mPolygonOffsetFactor;
      GLfloat mPolygonOffsetUnits;
      bool mRasterizerDiscardEnabled;
      float mLineWidth;
  
      bool mPrimitiveRestartEnabled;
  
      gl::ColorF mClearColor;
      float mClearDepth;
      GLint mClearStencil;
  
      bool mFramebufferSRGBEnabled;
      bool mTextureCubemapSeamlessEnabled;
  
      bool mMultisamplingEnabled;
      bool mSampleAlphaToOneEnabled;
  
      GLenum mCoverageModulation;
  
      gl::State::DirtyBits mLocalDirtyBits;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_GL_STATEMANAGERGL_H_
  

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