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Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/RenderStateCache.h')
| -rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/RenderStateCache.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/RenderStateCache.h b/src/3rdparty/angle/src/libGLESv2/renderer/RenderStateCache.h new file mode 100644 index 0000000000..f8b5111de4 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/RenderStateCache.h @@ -0,0 +1,101 @@ +// +// 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" + +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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