kc3-lang/angle/src/libGLESv2/renderer/RenderStateCache.h

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• Hash : 3cf86509
  Author :
  Date : 2013-01-11T04:08:40
  

  Fixed code style mistakes.
  
  TRAC #22251
  
  Signed-off-by: Nicolas Capens
  Signed-off-by: Daniel Koch
  Author: Geoff Lang
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1672 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/libGLESv2/renderer/RenderStateCache.h

• //
  // Copyright (c) 2012-2013 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.
  //
  
  // RenderStateCache.h: Defines rx::RenderStateCache, a cache of Direct3D render
  // state objects.
  
  #ifndef LIBGLESV2_RENDERER_RENDERSTATECACHE_H_
  #define LIBGLESV2_RENDERER_RENDERSTATECACHE_H_
  
  #include "libGLESv2/angletypes.h"
  #include "common/angleutils.h"
  
  #include <D3D11.h>
  #include <unordered_map>
  
  namespace rx
  {
  
  class RenderStateCache
  {
    public:
      RenderStateCache();
      virtual ~RenderStateCache();
  
      void initialize(ID3D11Device *device);
      void clear();
  
      // Increments refcount on the returned blend state, Release() must be called.
      ID3D11BlendState *getBlendState(const gl::BlendState &blendState);
      ID3D11RasterizerState *getRasterizerState(const gl::RasterizerState &rasterState,
                                                bool scissorEnabled, unsigned int depthSize);
      ID3D11DepthStencilState *getDepthStencilState(const gl::DepthStencilState &dsState);
      ID3D11SamplerState *getSamplerState(const gl::SamplerState &samplerState);
  
    private:
      DISALLOW_COPY_AND_ASSIGN(RenderStateCache);
  
      unsigned long long mCounter;
  
      // Blend state cache
      static std::size_t hashBlendState(const gl::BlendState &blendState);
      static bool compareBlendStates(const gl::BlendState &a, const gl::BlendState &b);
      static const unsigned int kMaxBlendStates;
  
      typedef std::size_t (*BlendStateHashFunction)(const gl::BlendState &);
      typedef bool (*BlendStateEqualityFunction)(const gl::BlendState &, const gl::BlendState &);
      typedef std::pair<ID3D11BlendState*, unsigned long long> BlendStateCounterPair;
      typedef std::unordered_map<gl::BlendState, BlendStateCounterPair, BlendStateHashFunction, BlendStateEqualityFunction> BlendStateMap;
      BlendStateMap mBlendStateCache;
  
      // Rasterizer state cache
      struct RasterizerStateKey
      {
          gl::RasterizerState rasterizerState;
          bool scissorEnabled;
          unsigned int depthSize;
      };
      static std::size_t hashRasterizerState(const RasterizerStateKey &rasterState);
      static bool compareRasterizerStates(const RasterizerStateKey &a, const RasterizerStateKey &b);
      static const unsigned int kMaxRasterizerStates;
  
      typedef std::size_t (*RasterizerStateHashFunction)(const RasterizerStateKey &);
      typedef bool (*RasterizerStateEqualityFunction)(const RasterizerStateKey &, const RasterizerStateKey &);
      typedef std::pair<ID3D11RasterizerState*, unsigned long long> RasterizerStateCounterPair;
      typedef std::unordered_map<RasterizerStateKey, RasterizerStateCounterPair, RasterizerStateHashFunction, RasterizerStateEqualityFunction> RasterizerStateMap;
      RasterizerStateMap mRasterizerStateCache;
  
      // Depth stencil state cache
      static std::size_t hashDepthStencilState(const gl::DepthStencilState &dsState);
      static bool compareDepthStencilStates(const gl::DepthStencilState &a, const gl::DepthStencilState &b);
      static const unsigned int kMaxDepthStencilStates;
  
      typedef std::size_t (*DepthStencilStateHashFunction)(const gl::DepthStencilState &);
      typedef bool (*DepthStencilStateEqualityFunction)(const gl::DepthStencilState &, const gl::DepthStencilState &);
      typedef std::pair<ID3D11DepthStencilState*, unsigned long long> DepthStencilStateCounterPair;
      typedef std::unordered_map<gl::DepthStencilState,
                                 DepthStencilStateCounterPair,
                                 DepthStencilStateHashFunction,
                                 DepthStencilStateEqualityFunction> DepthStencilStateMap;
      DepthStencilStateMap mDepthStencilStateCache;
  
      // Sample state cache
      static std::size_t hashSamplerState(const gl::SamplerState &samplerState);
      static bool compareSamplerStates(const gl::SamplerState &a, const gl::SamplerState &b);
      static const unsigned int kMaxSamplerStates;
  
      typedef std::size_t (*SamplerStateHashFunction)(const gl::SamplerState &);
      typedef bool (*SamplerStateEqualityFunction)(const gl::SamplerState &, const gl::SamplerState &);
      typedef std::pair<ID3D11SamplerState*, unsigned long long> SamplerStateCounterPair;
      typedef std::unordered_map<gl::SamplerState,
                                 SamplerStateCounterPair,
                                 SamplerStateHashFunction,
                                 SamplerStateEqualityFunction> SamplerStateMap;
      SamplerStateMap mSamplerStateCache;
  
      ID3D11Device *mDevice;
  };
  
  }
  
  #endif // LIBGLESV2_RENDERER_RENDERSTATECACHE_H_

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