ref: 1928b9a1ba6f7c18ebc058835f308c3d7016a1da
dir: /codec/decoder/core/src/mem_align.cpp/
/*!
* \copy
* Copyright (c) 2013, Cisco Systems
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 HOLDER 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.
*
*/
#include "mem_align.h"
#include "crt_util_safe_x.h"
namespace WelsDec {
//#define MEMORY_CHECK
#ifdef MEMORY_CHECK
WelsFileHandle * pMemCheckMalloc = NULL;
WelsFileHandle * pMemCheckFree = NULL;
int32_t iCountMalloc = 0;
#endif
//
/////////////////////////////////////////////////////////////////////////////////
#define ALIGNBYTES (16)
/////////////////////////////////////////////////////////////////////////////////
void_t * WelsMalloc( const uint32_t kuiSize, const str_t *kpTag )
{
const int32_t kiSizeVoidPtr = sizeof( void_t ** );
const int32_t kiSizeInt = sizeof( int32_t );
#ifdef HAVE_CACHE_LINE_ALIGN
const int32_t kiAlignBytes = ALIGNBYTES - 1;
#else
const int32_t kiAlignBytes = 15;
#endif// HAVE_CACHE_LINE_ALIGN
uint8_t* pBuf = (uint8_t *) malloc( kuiSize + kiAlignBytes + kiSizeVoidPtr + kiSizeInt );
uint8_t* pAlignBuf;
#ifdef MEMORY_CHECK
if( pMemCheckMalloc == NULL ){
pMemCheckMalloc = WelsFopen(".\\mem_check_malloc.txt", "at+");
pMemCheckFree = WelsFopen(".\\mem_check_free.txt", "at+");
}
if ( kpTag != NULL )
{
if ( pMemCheckMalloc != NULL )
{
fprintf( pMemCheckMalloc, "0x%x, size: %d , malloc %s\n", (void_t *)pBuf, (kuiSize + kiAlignBytes + kiSizeVoidPtr + kiSizeInt), kpTag );
}
if ( pMemCheckMalloc != NULL )
{
fflush( pMemCheckMalloc );
}
}
#endif
if ( NULL == pBuf )
return NULL;
// to fill zero values
memset( pBuf, 0, kuiSize + kiAlignBytes + kiSizeVoidPtr + kiSizeInt );
pAlignBuf = pBuf + kiAlignBytes + kiSizeVoidPtr + kiSizeInt;
pAlignBuf -= (int32_t) pAlignBuf & kiAlignBytes;
*( (void_t **) ( pAlignBuf - kiSizeVoidPtr ) ) = pBuf;
*( (int32_t *) ( pAlignBuf - (kiSizeVoidPtr + kiSizeInt) ) ) = kuiSize;
return (pAlignBuf);
}
/////////////////////////////////////////////////////////////////////////////
void_t WelsFree( void_t* pPtr, const str_t *kpTag )
{
if( pPtr )
{
#ifdef MEMORY_CHECK
if ( NULL != pMemCheckFree && kpTag != NULL )
{
fprintf( pMemCheckFree, "0x%x, free %s\n", (void_t *)(*( ( ( void_t **) pPtr ) - 1 )), kpTag );
fflush( pMemCheckFree );
}
#endif
free( *( ( ( void_t **) pPtr ) - 1 ) );
}
}
/////////////////////////////////////////////////////////////////////////////
} // namespace WelsDec