| /*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. |
| // |
| // |
| // Intel License Agreement |
| // For Open Source Computer Vision Library |
| // |
| // Copyright (C) 2000, Intel Corporation, all rights reserved. |
| // 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 Intel Corporation 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 "_cxcore.h" |
| |
| // default <malloc> |
| static void* |
| icvDefaultAlloc( size_t size, void* ) |
| { |
| char *ptr, *ptr0 = (char*)malloc( |
| (size_t)(size + CV_MALLOC_ALIGN*((size >= 4096) + 1) + sizeof(char*))); |
| |
| if( !ptr0 ) |
| return 0; |
| |
| // align the pointer |
| ptr = (char*)cvAlignPtr(ptr0 + sizeof(char*) + 1, CV_MALLOC_ALIGN); |
| *(char**)(ptr - sizeof(char*)) = ptr0; |
| |
| return ptr; |
| } |
| |
| |
| // default <free> |
| static int |
| icvDefaultFree( void* ptr, void* ) |
| { |
| // Pointer must be aligned by CV_MALLOC_ALIGN |
| if( ((size_t)ptr & (CV_MALLOC_ALIGN-1)) != 0 ) |
| return CV_BADARG_ERR; |
| free( *((char**)ptr - 1) ); |
| |
| return CV_OK; |
| } |
| |
| |
| // pointers to allocation functions, initially set to default |
| static CvAllocFunc p_cvAlloc = icvDefaultAlloc; |
| static CvFreeFunc p_cvFree = icvDefaultFree; |
| static void* p_cvAllocUserData = 0; |
| |
| CV_IMPL void cvSetMemoryManager( CvAllocFunc alloc_func, CvFreeFunc free_func, void* userdata ) |
| { |
| CV_FUNCNAME( "cvSetMemoryManager" ); |
| |
| __BEGIN__; |
| |
| if( (alloc_func == 0) ^ (free_func == 0) ) |
| CV_ERROR( CV_StsNullPtr, "Either both pointers should be NULL or none of them"); |
| |
| p_cvAlloc = alloc_func ? alloc_func : icvDefaultAlloc; |
| p_cvFree = free_func ? free_func : icvDefaultFree; |
| p_cvAllocUserData = userdata; |
| |
| __END__; |
| } |
| |
| |
| CV_IMPL void* cvAlloc( size_t size ) |
| { |
| void* ptr = 0; |
| |
| CV_FUNCNAME( "cvAlloc" ); |
| |
| __BEGIN__; |
| |
| if( (size_t)size > CV_MAX_ALLOC_SIZE ) |
| CV_ERROR( CV_StsOutOfRange, |
| "Negative or too large argument of cvAlloc function" ); |
| |
| ptr = p_cvAlloc( size, p_cvAllocUserData ); |
| if( !ptr ) |
| CV_ERROR( CV_StsNoMem, "Out of memory" ); |
| |
| __END__; |
| |
| return ptr; |
| } |
| |
| |
| CV_IMPL void cvFree_( void* ptr ) |
| { |
| CV_FUNCNAME( "cvFree_" ); |
| |
| __BEGIN__; |
| |
| if( ptr ) |
| { |
| CVStatus status = p_cvFree( ptr, p_cvAllocUserData ); |
| if( status < 0 ) |
| CV_ERROR( status, "Deallocation error" ); |
| } |
| |
| __END__; |
| } |
| |
| /* End of file. */ |