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/*****************************************************************************
* *
* PrimeSense PSCommon Library *
* Copyright (C) 2012 PrimeSense Ltd. *
* *
* This file is part of PSCommon. *
* *
* Licensed under the Apache License, Version 2.0 (the "License"); *
* you may not use this file except in compliance with the License. *
* You may obtain a copy of the License at *
* *
* http://www.apache.org/licenses/LICENSE-2.0 *
* *
* Unless required by applicable law or agreed to in writing, software *
* distributed under the License is distributed on an "AS IS" BASIS, *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
* See the License for the specific language governing permissions and *
* limitations under the License. *
* *
*****************************************************************************/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
// NOTE: you must define XN_OS_IMPL before including xnOS.h, otherwise, when mem profiling this file will not compile.
#define XN_OS_IMPL
#include <XnOS.h>
#if (XN_PLATFORM == XN_PLATFORM_MACOSX)
#include <sys/malloc.h>
#else
#include <malloc.h>
#endif
#include <XnLog.h>
//---------------------------------------------------------------------------
// Code
//---------------------------------------------------------------------------
XN_C_API void* xnOSMalloc(const XnSizeT nAllocSize)
{
// Return a pointer to the requested allocation size
return (malloc(nAllocSize));
}
XN_C_API void* xnOSMallocAligned(const XnSizeT nAllocSize, const XnSizeT nAlignment)
{
void* pResult = NULL;
#ifndef XN_PLATFORM_LINUX_NO_POSIX_MEMALIGN
if (0 != posix_memalign(&pResult, nAlignment, nAllocSize))
return NULL;
#else
pResult = memalign(nAlignment, nAllocSize);
#endif
return pResult;
}
XN_C_API void* xnOSCalloc(const XnSizeT nAllocNum, const XnSizeT nAllocSize)
{
// Return a pointer to the requested allocation size and write zeros on the entire memory block (C Alloc)
return (calloc(nAllocNum, nAllocSize));
}
XN_C_API void* xnOSCallocAligned(const XnSizeT nAllocNum, const XnSizeT nAllocSize, const XnSizeT nAlignment)
{
// Local function variables
void* pMemBlock = NULL;
XnUInt32 nBlockSize = nAllocNum * nAllocSize;
// Allocate the aligned memory block
pMemBlock = xnOSMallocAligned(nBlockSize, nAlignment);
// If it succeeded (the returned block wasn't NULL, let's zero it)
if (pMemBlock != NULL)
{
memset(pMemBlock, 0, nBlockSize);
}
return (pMemBlock);
}
XN_C_API void* xnOSRealloc(void* pMemory, const XnSizeT nAllocSize)
{
// Return a pointer to the requested allocation size
return (realloc(pMemory, nAllocSize));
}
XN_C_API void* xnOSReallocAligned(void* pMemory, const XnSizeT nAllocSize, const XnSizeT nAlignment)
{
xnLogError("xnOS", "Does not know how to realloc aligned memory!");
return NULL;
}
XN_C_API void* xnOSRecalloc(void* pMemory, const XnSizeT nAllocNum, const XnSizeT nAllocSize)
{
xnLogError("xnOS", "Does not know how to realloc aligned memory!");
// Return a pointer to the requested allocation size and write zeros on the entire memory block (C Alloc)
return NULL;
}
XN_C_API void xnOSFree(const void* pMemBlock)
{
// Note: No need to check if pMemBlock is NULL because free is guaranteed to handle this case correctly.
// Free the requested memory block
free ((void*)pMemBlock);
}
XN_C_API void xnOSFreeAligned(const void* pMemBlock)
{
// Note: No need to check if pMemBlock is NULL because free is guaranteed to handle this case correctly.
// Free the requested memory block
free ((void*)pMemBlock);
}
XN_C_API void xnOSMemCopy(void* pDest, const void* pSource, XnSizeT nCount)
{
memcpy(pDest, pSource, nCount);
}
XN_C_API XnInt32 xnOSMemCmp(const void *pBuf1, const void *pBuf2, XnSizeT nCount)
{
return memcmp(pBuf1, pBuf2, nCount);
}
XN_C_API void xnOSMemSet(void* pDest, XnUInt8 nValue, XnSizeT nCount)
{
memset(pDest, nValue, nCount);
}
XN_C_API void xnOSMemMove(void* pDest, const void* pSource, XnSizeT nCount)
{
memmove(pDest, pSource, nCount);
}
XN_C_API XnUInt64 xnOSEndianSwapUINT64(XnUInt64 nValue)
{
return ((nValue >> 56) ) | ((nValue >> 40) & 0x000000000000ff00ULL) |
((nValue >> 24) & 0x0000000000ff0000ULL) | ((nValue >> 8 ) & 0x00000000ff000000ULL) |
((nValue << 8 ) & 0x000000ff00000000ULL) | ((nValue << 24) & 0x0000ff0000000000ULL) |
((nValue << 40) & 0x00ff000000000000ULL) | ((nValue << 56) );
}
XN_C_API XnUInt32 xnOSEndianSwapUINT32(XnUInt32 nValue)
{
return (nValue>>24) |
((nValue<<8) & 0x00FF0000) |
((nValue>>8) & 0x0000FF00) |
(nValue<<24);
}
XN_C_API XnUInt16 xnOSEndianSwapUINT16(XnUInt16 nValue)
{
return ((nValue>>8) | (nValue<<8));
}
XN_C_API XnFloat xnOSEndianSwapFLOAT(XnFloat fValue)
{
XnUInt32* pnValue = (XnUInt32*)&fValue;
XnUInt32 nValue = xnOSEndianSwapUINT32(*pnValue);
XnFloat* pfValue = (XnFloat*)&nValue;
return *pfValue;
}
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