opencv/modules/core/src/alloc.cpp at master · pythonmjs/opencv · GitHub

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/*M///////////////////////////////////////////////////////////////////////////////////////

// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.

// By downloading, copying, installing or using the software you agree to this license.

// If you do not agree to this license, do not download, install,

// copy or use the software.

// License Agreement

// For Open Source Computer Vision Library

// Third party copyrights are property of their respective owners.

// Redistribution and use in source and binary forms, with or without modification,

// are permitted provided that the following conditions are met:

// * Redistribution's of source code must retain the above copyright notice,

// this list of conditions and the following disclaimer.

// * Redistribution's 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.

// * The name of the copyright holders may not be used to endorse or promote products

// derived from this software without specific prior written permission.

// 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 Intel Corporation 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.

//M*/

#include "precomp.hpp"

#ifdef HAVE_POSIX_MEMALIGN

#include <stdlib.h>

#elif defined HAVE_MALLOC_H

#include <malloc.h>

#endif

namespace cv {

static void* OutOfMemoryError(size_t size)

{

CV_Error_(CV_StsNoMem, ("Failed to allocate %llu bytes", (unsigned long long)size));

}

void* fastMalloc( size_t size )

{

#ifdef HAVE_POSIX_MEMALIGN

void* ptr = NULL;

if(posix_memalign(&ptr, CV_MALLOC_ALIGN, size))

ptr = NULL;

if(!ptr)

return OutOfMemoryError(size);

return ptr;

#elif defined HAVE_MEMALIGN

void* ptr = memalign(CV_MALLOC_ALIGN, size);

if(!ptr)

return OutOfMemoryError(size);

return ptr;

#else

uchar* udata = (uchar*)malloc(size + sizeof(void*) + CV_MALLOC_ALIGN);

if(!udata)

return OutOfMemoryError(size);

uchar** adata = alignPtr((uchar**)udata + 1, CV_MALLOC_ALIGN);

adata[-1] = udata;

return adata;

#endif

}

void fastFree(void* ptr)

{

#if defined HAVE_POSIX_MEMALIGN || defined HAVE_MEMALIGN

free(ptr);

#else

if(ptr)

{

uchar* udata = ((uchar**)ptr)[-1];

CV_DbgAssert(udata < (uchar*)ptr &&

((uchar*)ptr - udata) <= (ptrdiff_t)(sizeof(void*)+CV_MALLOC_ALIGN));

free(udata);

}

#endif

}

} // namespace

CV_IMPL void* cvAlloc( size_t size )

{

return cv::fastMalloc( size );

}

CV_IMPL void cvFree_( void* ptr )

{

cv::fastFree( ptr );

}

/* End of file. */

opencv/modules/core/src/alloc.cpp at master · pythonmjs/opencv · GitHub

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