1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/angle/src/libGLESv2/renderer/RenderStateCache.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,101 @@
1.4 +//
1.5 +// Copyright (c) 2012-2013 The ANGLE Project Authors. All rights reserved.
1.6 +// Use of this source code is governed by a BSD-style license that can be
1.7 +// found in the LICENSE file.
1.8 +//
1.9 +
1.10 +// RenderStateCache.h: Defines rx::RenderStateCache, a cache of Direct3D render
1.11 +// state objects.
1.12 +
1.13 +#ifndef LIBGLESV2_RENDERER_RENDERSTATECACHE_H_
1.14 +#define LIBGLESV2_RENDERER_RENDERSTATECACHE_H_
1.15 +
1.16 +#include "libGLESv2/angletypes.h"
1.17 +#include "common/angleutils.h"
1.18 +
1.19 +namespace rx
1.20 +{
1.21 +
1.22 +class RenderStateCache
1.23 +{
1.24 + public:
1.25 + RenderStateCache();
1.26 + virtual ~RenderStateCache();
1.27 +
1.28 + void initialize(ID3D11Device *device);
1.29 + void clear();
1.30 +
1.31 + // Increments refcount on the returned blend state, Release() must be called.
1.32 + ID3D11BlendState *getBlendState(const gl::BlendState &blendState);
1.33 + ID3D11RasterizerState *getRasterizerState(const gl::RasterizerState &rasterState,
1.34 + bool scissorEnabled, unsigned int depthSize);
1.35 + ID3D11DepthStencilState *getDepthStencilState(const gl::DepthStencilState &dsState);
1.36 + ID3D11SamplerState *getSamplerState(const gl::SamplerState &samplerState);
1.37 +
1.38 + private:
1.39 + DISALLOW_COPY_AND_ASSIGN(RenderStateCache);
1.40 +
1.41 + unsigned long long mCounter;
1.42 +
1.43 + // Blend state cache
1.44 + static std::size_t hashBlendState(const gl::BlendState &blendState);
1.45 + static bool compareBlendStates(const gl::BlendState &a, const gl::BlendState &b);
1.46 + static const unsigned int kMaxBlendStates;
1.47 +
1.48 + typedef std::size_t (*BlendStateHashFunction)(const gl::BlendState &);
1.49 + typedef bool (*BlendStateEqualityFunction)(const gl::BlendState &, const gl::BlendState &);
1.50 + typedef std::pair<ID3D11BlendState*, unsigned long long> BlendStateCounterPair;
1.51 + typedef std::unordered_map<gl::BlendState, BlendStateCounterPair, BlendStateHashFunction, BlendStateEqualityFunction> BlendStateMap;
1.52 + BlendStateMap mBlendStateCache;
1.53 +
1.54 + // Rasterizer state cache
1.55 + struct RasterizerStateKey
1.56 + {
1.57 + gl::RasterizerState rasterizerState;
1.58 + bool scissorEnabled;
1.59 + unsigned int depthSize;
1.60 + };
1.61 + static std::size_t hashRasterizerState(const RasterizerStateKey &rasterState);
1.62 + static bool compareRasterizerStates(const RasterizerStateKey &a, const RasterizerStateKey &b);
1.63 + static const unsigned int kMaxRasterizerStates;
1.64 +
1.65 + typedef std::size_t (*RasterizerStateHashFunction)(const RasterizerStateKey &);
1.66 + typedef bool (*RasterizerStateEqualityFunction)(const RasterizerStateKey &, const RasterizerStateKey &);
1.67 + typedef std::pair<ID3D11RasterizerState*, unsigned long long> RasterizerStateCounterPair;
1.68 + typedef std::unordered_map<RasterizerStateKey, RasterizerStateCounterPair, RasterizerStateHashFunction, RasterizerStateEqualityFunction> RasterizerStateMap;
1.69 + RasterizerStateMap mRasterizerStateCache;
1.70 +
1.71 + // Depth stencil state cache
1.72 + static std::size_t hashDepthStencilState(const gl::DepthStencilState &dsState);
1.73 + static bool compareDepthStencilStates(const gl::DepthStencilState &a, const gl::DepthStencilState &b);
1.74 + static const unsigned int kMaxDepthStencilStates;
1.75 +
1.76 + typedef std::size_t (*DepthStencilStateHashFunction)(const gl::DepthStencilState &);
1.77 + typedef bool (*DepthStencilStateEqualityFunction)(const gl::DepthStencilState &, const gl::DepthStencilState &);
1.78 + typedef std::pair<ID3D11DepthStencilState*, unsigned long long> DepthStencilStateCounterPair;
1.79 + typedef std::unordered_map<gl::DepthStencilState,
1.80 + DepthStencilStateCounterPair,
1.81 + DepthStencilStateHashFunction,
1.82 + DepthStencilStateEqualityFunction> DepthStencilStateMap;
1.83 + DepthStencilStateMap mDepthStencilStateCache;
1.84 +
1.85 + // Sample state cache
1.86 + static std::size_t hashSamplerState(const gl::SamplerState &samplerState);
1.87 + static bool compareSamplerStates(const gl::SamplerState &a, const gl::SamplerState &b);
1.88 + static const unsigned int kMaxSamplerStates;
1.89 +
1.90 + typedef std::size_t (*SamplerStateHashFunction)(const gl::SamplerState &);
1.91 + typedef bool (*SamplerStateEqualityFunction)(const gl::SamplerState &, const gl::SamplerState &);
1.92 + typedef std::pair<ID3D11SamplerState*, unsigned long long> SamplerStateCounterPair;
1.93 + typedef std::unordered_map<gl::SamplerState,
1.94 + SamplerStateCounterPair,
1.95 + SamplerStateHashFunction,
1.96 + SamplerStateEqualityFunction> SamplerStateMap;
1.97 + SamplerStateMap mSamplerStateCache;
1.98 +
1.99 + ID3D11Device *mDevice;
1.100 +};
1.101 +
1.102 +}
1.103 +
1.104 +#endif // LIBGLESV2_RENDERER_RENDERSTATECACHE_H_
1.105 \ No newline at end of file
