93 lines
3.5 KiB
C
93 lines
3.5 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_COLLISION_DEFS_H
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#define PX_COLLISION_DEFS_H
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#include "PxPhysXConfig.h"
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#include "foundation/PxSimpleTypes.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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/**
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\brief A callback class to allocate memory to cache information used in contact generation.
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*/
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class PxCacheAllocator
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{
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public:
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/**
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\brief Allocates cache data for contact generation. This data is stored inside PxCache objects.
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The application can retain and provide this information for future contact generation passes
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for a given pair to improve contact generation performance. It is the application's responsibility
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to release this memory appropriately. If the memory is released, the application must ensure that
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this memory is no longer referenced by any PxCache objects passed to PxGenerateContacts.
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\param byteSize [in] size of the allocation in bytes
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\return the newly-allocated memory. The returned address must be 16-byte aligned.
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@see PxCache, PxGenerateContacts
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*/
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virtual PxU8* allocateCacheData(const PxU32 byteSize) = 0;
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virtual ~PxCacheAllocator() {}
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};
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/**
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\brief A structure to cache contact information produced by low-level contact generation functions.
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*/
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struct PxCache
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{
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PxU8* mCachedData; //!< Cached data pointer. Allocated via PxCacheAllocator
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PxU16 mCachedSize; //!< The total size of the cached data
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PxU8 mPairData; //!< Pair data information used and cached internally by some contact generation functions to accelerate performance.
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PxU8 mManifoldFlags; //!< Manifold flags used to identify the format the cached data is stored in. @see Gu::ManifoldFlags
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PX_FORCE_INLINE PxCache() : mCachedData(NULL), mCachedSize(0), mPairData(0), mManifoldFlags(0)
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{
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}
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PX_FORCE_INLINE void reset()
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{
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mCachedData = NULL;
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mCachedSize = 0;
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mPairData = 0;
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mManifoldFlags = 0;
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}
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};
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#if !PX_DOXYGEN
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}
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#endif
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#endif
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