99 lines
4.5 KiB
C
99 lines
4.5 KiB
C
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2023 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_ARRAY_CONVERTER_H
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#define PX_ARRAY_CONVERTER_H
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#include "cudamanager/PxCudaContext.h"
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#include "cudamanager/PxCudaContextManager.h"
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#include "foundation/PxSimpleTypes.h"
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#include "foundation/PxVec4.h"
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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#if PX_SUPPORT_GPU_PHYSX
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/**
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\brief Utility class to convert gpu arrays to a different memory layout
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*/
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class PxArrayConverter
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{
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public:
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/**
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\brief Helper function to merge two separate PxVec4 arrays into one interleaved PxVec3 array
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\param[in] verticesD The vertices device memory buffer
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\param[in] normalsD The normals device memory buffer
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\param[in] length The number of vertices and normals
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\param[out] interleavedResultBufferD The resulting interleaved buffer containing 2*length elements with the format vertex0, normal0, vertex1, normal1...
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\param[in] stream The cuda stream on which the conversion is processed
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*/
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virtual void interleaveGpuBuffers(const PxVec4* verticesD, const PxVec4* normalsD, PxU32 length, PxVec3* interleavedResultBufferD, CUstream stream) = 0;
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/**
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\brief Helper function to convert the hair system's strand representation to a line list. The conversion is done on the GPU.
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\param[in] verticesD The strand vertices device memory buffer
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\param[in] numVertices The total number of vertices
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\param[in] strandPastEndIndicesD One index per strand (device memory array) to find out where the next strand starts
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\param[in] numStrands the number of strands
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\param[out] resultD A device memory buffer with 2*numVertices capacity describing line segment where line i extends from result[2*i] to result[2*i+1]
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\param[in] stream The cuda stream on which the conversion is processed
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*/
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virtual void extractLinesFromStrands(const PxVec4* verticesD, PxU32 numVertices, const PxU32* strandPastEndIndicesD,
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PxU32 numStrands, PxVec4* resultD, CUstream stream) = 0;
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/**
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\brief Helper function to convert the hair system's strand representation to a line list. The conversion is done on the GPU.
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\param[in] verticesD The strand vertices device memory buffer
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\param[in] numVertices The total number of vertices
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\param[in] strandPastEndIndicesD One index per strand (device memory array) to find out where the next strand starts
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\param[in] numStrands the number of strands
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\param[out] resultD A device memory buffer with 2*numVertices capacity describing line segment where line i extends from result[2*i] to result[2*i+1]
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\param[in] stream The cuda stream on which the conversion is processed
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*/
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virtual void extractLinesFromStrands(const PxVec3* verticesD, PxU32 numVertices, const PxU32* strandPastEndIndicesD,
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PxU32 numStrands, PxVec3* resultD, CUstream stream) = 0;
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/**
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\brief Destructor
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*/
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virtual ~PxArrayConverter() {}
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};
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#endif
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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#endif
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