111 lines
3.2 KiB
C++
111 lines
3.2 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 PX_DEFAULT_ALLOCATOR_H
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#define PX_DEFAULT_ALLOCATOR_H
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/** \addtogroup extensions
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@{
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*/
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#include "foundation/PxAllocatorCallback.h"
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#include "foundation/PxAssert.h"
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#include "common/PxPhysXCommonConfig.h"
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#include <stdlib.h>
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#if PX_WINDOWS_FAMILY || PX_LINUX_FAMILY || PX_SWITCH
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#include <malloc.h>
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#endif
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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#if PX_WINDOWS_FAMILY
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// on win32 we only have 8-byte alignment guaranteed, but the CRT provides special aligned allocation fns
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PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
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{
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return _aligned_malloc(size, 16);
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}
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PX_FORCE_INLINE void platformAlignedFree(void* ptr)
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{
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_aligned_free(ptr);
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}
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#elif PX_LINUX_FAMILY || PX_SWITCH
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PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
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{
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return ::memalign(16, size);
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}
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PX_FORCE_INLINE void platformAlignedFree(void* ptr)
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{
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::free(ptr);
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}
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#else
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// on all other platforms we get 16-byte alignment by default
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PX_FORCE_INLINE void* platformAlignedAlloc(size_t size)
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{
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return ::malloc(size);
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}
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PX_FORCE_INLINE void platformAlignedFree(void* ptr)
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{
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::free(ptr);
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}
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#endif
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/**
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\brief default implementation of the allocator interface required by the SDK
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*/
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class PxDefaultAllocator : public PxAllocatorCallback
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{
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public:
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void* allocate(size_t size, const char*, const char*, int)
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{
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void* ptr = platformAlignedAlloc(size);
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PX_ASSERT((reinterpret_cast<size_t>(ptr) & 15)==0);
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return ptr;
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}
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void deallocate(void* ptr)
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{
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platformAlignedFree(ptr);
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}
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};
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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