include/foundation/PxInlineAllocator.h
File members: include/foundation/PxInlineAllocator.h
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// Copyright (c) 2008-2023 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_INLINE_ALLOCATOR_H
#define PX_INLINE_ALLOCATOR_H
#include "foundation/PxUserAllocated.h"
#if !PX_DOXYGEN
namespace physx
{
#endif
// this is used by the array class to allocate some space for a small number
// of objects along with the metadata
template <PxU32 N, typename BaseAllocator>
class PxInlineAllocator : private BaseAllocator
{
public:
PxInlineAllocator(const PxEMPTY v) : BaseAllocator(v)
{
}
PxInlineAllocator(const BaseAllocator& alloc = BaseAllocator()) : BaseAllocator(alloc), mBufferUsed(false)
{
}
PxInlineAllocator(const PxInlineAllocator& aloc) : BaseAllocator(aloc), mBufferUsed(false)
{
}
void* allocate(PxU32 size, const char* filename, PxI32 line)
{
if(!mBufferUsed && size <= N)
{
mBufferUsed = true;
return mBuffer;
}
return BaseAllocator::allocate(size, filename, line);
}
void deallocate(void* ptr)
{
if(ptr == mBuffer)
mBufferUsed = false;
else
BaseAllocator::deallocate(ptr);
}
PX_FORCE_INLINE PxU8* getInlineBuffer()
{
return mBuffer;
}
PX_FORCE_INLINE bool isBufferUsed() const
{
return mBufferUsed;
}
protected:
PxU8 mBuffer[N];
bool mBufferUsed;
};
#if !PX_DOXYGEN
} // namespace physx
#endif
#endif