77 lines
3.4 KiB
C++
77 lines
3.4 KiB
C++
//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2019 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PSFOUNDATION_PSALLOCA_H
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#define PSFOUNDATION_PSALLOCA_H
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#include "PsTempAllocator.h"
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namespace physx
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{
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namespace shdfnd
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{
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template <typename T, typename Alloc = TempAllocator>
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class ScopedPointer : private Alloc
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{
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public:
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~ScopedPointer()
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{
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if(mOwned)
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Alloc::deallocate(mPointer);
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}
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operator T*() const
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{
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return mPointer;
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}
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T* mPointer;
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bool mOwned;
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};
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} // namespace shdfnd
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} // namespace physx
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/*! Stack allocation for \c count instances of \c type. Falling back to temp allocator if using more than 1kB. */
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#ifdef __SPU__
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#define PX_ALLOCA(var, type, count) type* var = reinterpret_cast<type*>(PxAlloca(sizeof(type) * (count)))
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#else
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#define PX_ALLOCA(var, type, count) \
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physx::shdfnd::ScopedPointer<type> var; \
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{ \
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uint32_t size = sizeof(type) * (count); \
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var.mOwned = size > 1024; \
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if(var.mOwned) \
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var.mPointer = reinterpret_cast<type*>(physx::shdfnd::TempAllocator().allocate(size, __FILE__, __LINE__)); \
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else \
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var.mPointer = reinterpret_cast<type*>(PxAlloca(size)); \
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}
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#endif
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#endif // #ifndef PSFOUNDATION_PSALLOCA_H
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