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89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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===========================================================================
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Doom 3 BFG Edition GPL Source Code
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Copyright (C) 2022 Stephen Pridham
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This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
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Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 BFG Edition Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#ifndef RENDERER_PIPELINECACHE_H_
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#define RENDERER_PIPELINECACHE_H_
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struct PipelineKey
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{
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uint64 state;
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int program;
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int depthBias;
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float slopeBias;
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Framebuffer* framebuffer;
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};
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inline bool operator==( const PipelineKey& lhs, const PipelineKey& rhs )
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{
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return lhs.state == rhs.state &&
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lhs.program == rhs.program &&
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lhs.framebuffer == rhs.framebuffer &&
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lhs.depthBias == rhs.depthBias &&
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lhs.slopeBias == rhs.slopeBias;
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}
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template<>
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struct std::hash<PipelineKey>
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{
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std::size_t operator()( const PipelineKey& key ) const noexcept
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{
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std::size_t h = 0;
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nvrhi::hash_combine( h, key.state );
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nvrhi::hash_combine( h, key.program );
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nvrhi::hash_combine( h, key.framebuffer );
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nvrhi::hash_combine( h, key.depthBias );
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nvrhi::hash_combine( h, key.slopeBias );
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return h;
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}
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};
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class PipelineCache
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{
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public:
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PipelineCache();
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void Init( nvrhi::DeviceHandle deviceHandle );
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void Shutdown();
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void Clear();
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nvrhi::GraphicsPipelineHandle GetOrCreatePipeline( const PipelineKey& key );
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private:
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void GetRenderState( uint64 stateBits, PipelineKey key, nvrhi::RenderState& renderState );
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nvrhi::DepthStencilState::StencilOpDesc GetStencilOpState( uint64 stateBits );
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nvrhi::DeviceHandle device;
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idHashIndex pipelineHash;
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idList<std::pair<PipelineKey, nvrhi::GraphicsPipelineHandle>> pipelines;
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};
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#endif
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