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# sdk/extensions/RT/source/NvBlastExtRTMultithreadedImpl.h

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    00001 // This code contains NVIDIA Confidential Information and is disclosed to you
    00002 // under a form of NVIDIA software license agreement provided separately to you.
    00003 //
    00004 // Notice
    00005 // NVIDIA Corporation and its licensors retain all intellectual property and
    00006 // proprietary rights in and to this software and related documentation and
    00007 // any modifications thereto. Any use, reproduction, disclosure, or
    00008 // distribution of this software and related documentation without an express
    00009 // license agreement from NVIDIA Corporation is strictly prohibited.
    00010 //
    00011 // ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
    00012 // NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
    00013 // THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
    00014 // MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
    00015 //
    00016 // Information and code furnished is believed to be accurate and reliable.
    00017 // However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
    00018 // information or for any infringement of patents or other rights of third parties that may
    00019 // result from its use. No license is granted by implication or otherwise under any patent
    00020 // or patent rights of NVIDIA Corporation. Details are subject to change without notice.
    00021 // This code supersedes and replaces all information previously supplied.
    00022 // NVIDIA Corporation products are not authorized for use as critical
    00023 // components in life support devices or systems without express written approval of
    00024 // NVIDIA Corporation.
    00025 //
    00026 // Copyright (c) 2016-2020 NVIDIA Corporation. All rights reserved.
    00027
    00028
    00029 #ifndef NVBLASTAUTHORINGRTMULTITHREADEDIMPL_H
    00030 #define NVBLASTAUTHORINGRTMULTITHREADEDIMPL_H
    00031
    00032 #include <NvBlastExtRT.h>
    00033 #include <NvBlastExtRTImpl.h>
    00034 #include <thread>
    00035 #include <mutex>
    00036 #include <condition_variable>
    00037 #include <atomic>
    00038 #include <vector>
    00039
    00040 namespace Nv
    00041 {
    00042     namespace Blast
    00043     {
    00044         class FractureRTMultithreadedImpl : public FractureRT
    00045         {
    00046         public:
    00047             FractureRTMultithreadedImpl(uint32_t threadCount);
    00048
    00049             void release() override;
    00050             void processMesh(DamagePattern* pattern, const Mesh* msh) override;
    00051             uint32_t getResultChunkCount() override;
    00052             Vertex* getVertexBuffer() override;
    00053             uint32_t* getIndexBuffer() override;
    00054             uint32_t* getVertexOffset() override;
    00055             uint32_t* getIndexOffset() override;
    00056             PerTriangleAdditionalData* getPerTriangleData() override;
    00057             void dumpChunksToObj(const char* path) override;
    00058
    00059         private:
    00060             Vertex* vertexBuffer = nullptr;
    00061             uint32_t* indexBuffer = nullptr;
    00062
    00063             uint32_t* vertexOffsets = nullptr;
    00064             uint32_t* indexOffsets = nullptr;
    00065
    00066             PerTriangleAdditionalData* adata = nullptr;
    00067
    00068             uint32_t chunkCount;
    00069
    00070 #ifdef USE_MERGED_MESH
    00071             BooleanToolOutputData* outputData;
    00072 #endif
    00073
    00074             struct PerThreadToolsAndData
    00075             {
    00076                 PerThreadToolsAndData();
    00077                 ~PerThreadToolsAndData();
    00078
    00079                 Fracturer*          f = nullptr;
    00080                 MeshGenerator*      mgen = nullptr;
    00081                 Vertex*             vertexBuffer = nullptr;
    00082                 uint32_t*           indexBuffer = nullptr;
    00083                 uint32_t*           indexOffsets = nullptr;
    00084                 uint32_t*           vertexOffsets = nullptr;
    00085                 uint32_t*           perChunkIds = nullptr;
    00086                 uint32_t            chunkCount;
    00087                 PerTriangleAdditionalData* adata = nullptr;
    00088
    00089                 SpatialAccelerator* accel = nullptr;
    00090                 BooleanToolOutputData* outputData = nullptr;
    00091             };
    00092
    00093             struct FractureJob
    00094             {
    00095                 FractureJob() {};
    00096                 FractureJob(uint32_t chunkId, const Mesh* mesh, Mesh* cell,
    00097                     int32_t stage = FractureRT::Stage::ALL, DamagePattern* pattern = nullptr)
    00098                     : chunkId(chunkId), mesh(mesh), cell(cell), stage(stage), pattern(pattern) {}
    00099
    00100                 uint32_t chunkId;
    00101                 const Nv::Blast::Mesh* mesh;
    00102                 Nv::Blast::Mesh* cell;
    00103                 int32_t stage = FractureRT::Stage::ALL;
    00104                 DamagePattern* pattern = nullptr;
    00105             };
    00106
    00107             std::mutex work_mtx;
    00108             std::condition_variable hasAJob;
    00109             std::vector<FractureJob> fractureJobList;
    00110             std::vector<PerThreadToolsAndData> perThreadTd;
    00111             std::vector<std::thread> threadPool;
    00112             std::atomic<int32_t> jobCounter;
    00113
    00114             void waitForJob(int32_t threadId);
    00115             bool terminateThreads;
    00116             void pushJob(FractureJob& j);
    00117         };
    00118     }
    00119 }
    00120
    00121 #endif // ifndef NVBLASTAUTHORINGRTMULTITHREADEDIMPL_H

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