Space-Project/dependencies/physx-4.1/include/collision/PxCollisionDefs.h
2021-01-16 17:11:39 +01:00

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3.5 KiB
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#ifndef PX_COLLISION_DEFS_H
#define PX_COLLISION_DEFS_H
#include "PxPhysXConfig.h"
#include "foundation/PxVec3.h"
#include "foundation/PxMat33.h"
#include "geomutils/GuContactPoint.h"
#include "geomutils/GuContactBuffer.h"
#include "geometry/PxGeometry.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
/**
\brief A structure to cache contact information produced by LL contact gen functions.
*/
struct PxCache
{
PxU8* mCachedData; //!< Cached data pointer. Allocated via PxCacheAllocator
PxU16 mCachedSize; //!< The total size of the cached data
PxU8 mPairData; //!< Pair data information used and cached internally by some contact gen functions to accelerate performance.
PxU8 mManifoldFlags; //!< Manifold flags used to identify the format the cached data is stored in.
PX_FORCE_INLINE PxCache() : mCachedData(NULL), mCachedSize(0), mPairData(0), mManifoldFlags(0)
{
}
PX_FORCE_INLINE void reset() { mCachedData = NULL; mCachedSize = 0; mPairData = 0; mManifoldFlags = 0;}
};
/**
A callback class to allocate memory to cache information used in contact generation.
*/
class PxCacheAllocator
{
public:
/**
\brief Allocates cache data for contact generation. This data is stored inside PxCache objects. The application can retain and provide this information for future contact generation passes
for a given pair to improve contact generation performance. It is the application's responsibility to release this memory appropriately. If the memory is released, the application must ensure that
this memory is no longer referenced by any PxCache objects passed to PxGenerateContacts.
\param byteSize The size of the allocation in bytes
\return the newly-allocated memory. The returned address must be 16-byte aligned.
*/
virtual PxU8* allocateCacheData(const PxU32 byteSize) = 0;
virtual ~PxCacheAllocator() {}
};
#if !PX_DOXYGEN
}
#endif
#endif