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27// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
28// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
29
30
31#ifndef PX_COLLISION_DEFS_H
32#define PX_COLLISION_DEFS_H
33
34#include "PxPhysXConfig.h"
35#include "foundation/PxVec3.h"
36#include "foundation/PxMat33.h"
37#include "geomutils/GuContactPoint.h"
38#include "geomutils/GuContactBuffer.h"
39#include "geometry/PxGeometry.h"
40
41#if !PX_DOXYGEN
42namespace physx
43{
44#endif
45
46 /**
47 \brief A structure to cache contact information produced by LL contact gen functions.
48 */
49 struct PxCache
50 {
51 PxU8* mCachedData; //!< Cached data pointer. Allocated via PxCacheAllocator
52 PxU16 mCachedSize; //!< The total size of the cached data
53 PxU8 mPairData; //!< Pair data information used and cached internally by some contact gen functions to accelerate performance.
54 PxU8 mManifoldFlags; //!< Manifold flags used to identify the format the cached data is stored in.
55
56 PX_FORCE_INLINE PxCache() : mCachedData(NULL), mCachedSize(0), mPairData(0), mManifoldFlags(0)
57 {
58 }
59
60 PX_FORCE_INLINE void reset() { mCachedData = NULL; mCachedSize = 0; mPairData = 0; mManifoldFlags = 0;}
61 };
62
63
64 /**
65 A callback class to allocate memory to cache information used in contact generation.
66 */
67 class PxCacheAllocator
68 {
69 public:
70 /**
71 \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
72 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
73 this memory is no longer referenced by any PxCache objects passed to PxGenerateContacts.
74 \param byteSize The size of the allocation in bytes
75 \return the newly-allocated memory. The returned address must be 16-byte aligned.
76 */
77 virtual PxU8* allocateCacheData(const PxU32 byteSize) = 0;
78
79 virtual ~PxCacheAllocator() {}
80 };
81
82#if !PX_DOXYGEN
83}
84#endif
85
86#endif
87
88

source code of qtquick3dphysics/src/3rdparty/PhysX/include/collision/PxCollisionDefs.h