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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 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 PSFOUNDATION_PSALLOCA_H
#define PSFOUNDATION_PSALLOCA_H
#include "PsTempAllocator.h"
namespace physx
{
namespace shdfnd
{
template <typename T, typename Alloc = TempAllocator>
class ScopedPointer : private Alloc
{
public:
~ScopedPointer()
{
if(mOwned)
Alloc::deallocate(mPointer);
}
operator T*() const
{
return mPointer;
}
T* mPointer;
bool mOwned;
};
} // namespace shdfnd
} // namespace physx
/*! Stack allocation for \c count instances of \c type. Falling back to temp allocator if using more than 1kB. */
#ifdef __SPU__
#define PX_ALLOCA(var, type, count) type* var = reinterpret_cast<type*>(PxAlloca(sizeof(type) * (count)))
#else
#define PX_ALLOCA(var, type, count) \
physx::shdfnd::ScopedPointer<type> var; \
{ \
uint32_t size = sizeof(type) * (count); \
var.mOwned = size > 1024; \
if(var.mOwned) \
var.mPointer = reinterpret_cast<type*>(physx::shdfnd::TempAllocator().allocate(size, __FILE__, __LINE__)); \
else \
var.mPointer = reinterpret_cast<type*>(PxAlloca(size)); \
}
#endif
#endif // #ifndef PSFOUNDATION_PSALLOCA_H
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