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26// Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved.
27// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
28// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
29#ifndef PX_XML_MEMORY_ALLOCATOR_H
30#define PX_XML_MEMORY_ALLOCATOR_H
31
32#include "foundation/PxSimpleTypes.h"
33
34namespace physx {
35
36 class XmlMemoryAllocator
37 {
38 protected:
39 virtual ~XmlMemoryAllocator(){}
40 public:
41 virtual PxU8* allocate(PxU32 inSize) = 0;
42 virtual void deallocate( PxU8* inMem ) = 0;
43 virtual PxAllocatorCallback& getAllocator() = 0;
44 template<typename TObjectType>
45 TObjectType* allocate()
46 {
47 TObjectType* retval = reinterpret_cast< TObjectType* >( allocate( inSize: sizeof( TObjectType ) ) );
48 new (retval) TObjectType();
49 return retval;
50 }
51
52 template<typename TObjectType, typename TArgType>
53 TObjectType* allocate(const TArgType &arg)
54 {
55 TObjectType* retval = reinterpret_cast< TObjectType* >( allocate( inSize: sizeof( TObjectType ) ) );
56 new (retval) TObjectType(arg);
57 return retval;
58 }
59
60 template<typename TObjectType>
61 void deallocate( TObjectType* inObject )
62 {
63 deallocate( inMem: reinterpret_cast<PxU8*>( inObject ) );
64 }
65 template<typename TObjectType>
66 inline TObjectType* batchAllocate(PxU32 inCount )
67 {
68 TObjectType* retval = reinterpret_cast<TObjectType*>( allocate( inSize: sizeof(TObjectType) * inCount ) );
69 for ( PxU32 idx = 0; idx < inCount; ++idx )
70 {
71 new (retval + idx) TObjectType();
72 }
73 return retval;
74 }
75
76 template<typename TObjectType, typename TArgType>
77 inline TObjectType* batchAllocate(PxU32 inCount, const TArgType &arg)
78 {
79 TObjectType* retval = reinterpret_cast<TObjectType*>( allocate( inSize: sizeof(TObjectType) * inCount ) );
80 for ( PxU32 idx = 0; idx < inCount; ++idx )
81 {
82 new (retval + idx) TObjectType(arg);
83 }
84 return retval;
85 }
86
87
88 //Duplicate function definition for gcc.
89 template<typename TObjectType>
90 inline TObjectType* batchAllocate(TObjectType*, PxU32 inCount )
91 {
92 TObjectType* retval = reinterpret_cast<TObjectType*>( allocate( inSize: sizeof(TObjectType) * inCount ) );
93 for ( PxU32 idx = 0; idx < inCount; ++idx )
94 {
95 new (retval + idx) TObjectType();
96 }
97 return retval;
98 }
99 };
100
101 struct XmlMemoryAllocatorImpl : public XmlMemoryAllocator
102 {
103 Sn::TMemoryPoolManager mManager;
104
105 XmlMemoryAllocatorImpl( PxAllocatorCallback& inAllocator )
106 : mManager( inAllocator )
107 {
108 }
109 XmlMemoryAllocatorImpl &operator=(const XmlMemoryAllocatorImpl &);
110 virtual PxAllocatorCallback& getAllocator()
111 {
112 return mManager.getWrapper().getAllocator();
113 }
114
115 virtual PxU8* allocate(PxU32 inSize )
116 {
117 if ( !inSize )
118 return NULL;
119
120 return mManager.allocate( inSize );
121 }
122 virtual void deallocate( PxU8* inMem )
123 {
124 if ( inMem )
125 mManager.deallocate( inMemory: inMem );
126 }
127 };
128}
129#endif
130

source code of qtquick3dphysics/src/3rdparty/PhysX/source/physxextensions/src/serialization/Xml/SnXmlMemoryAllocator.h