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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// Intel License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2000, Intel Corporation, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of Intel Corporation may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include "precomp.hpp"
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CV_IMPL void
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cvDeInterlace( const CvArr* framearr, CvArr* fieldEven, CvArr* fieldOdd )
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{
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CV_FUNCNAME("cvDeInterlace");
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__BEGIN__;
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CvMat frame_stub, *frame = (CvMat*)framearr;
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CvMat even_stub, *even = (CvMat*)fieldEven;
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CvMat odd_stub, *odd = (CvMat*)fieldOdd;
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CvSize size;
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int y;
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CV_CALL( frame = cvGetMat( frame, &frame_stub ));
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CV_CALL( even = cvGetMat( even, &even_stub ));
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CV_CALL( odd = cvGetMat( odd, &odd_stub ));
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if( !CV_ARE_TYPES_EQ( frame, even ) || !CV_ARE_TYPES_EQ( frame, odd ))
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CV_ERROR( CV_StsUnmatchedFormats, "All the input images must have the same type" );
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if( frame->cols != even->cols || frame->cols != odd->cols ||
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frame->rows != even->rows*2 || odd->rows != even->rows )
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CV_ERROR( CV_StsUnmatchedSizes, "Uncorrelated sizes of the input image and output fields" );
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size = cvGetMatSize( even );
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size.width *= CV_ELEM_SIZE( even->type );
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for( y = 0; y < size.height; y++ )
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{
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memcpy( even->data.ptr + even->step*y,
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frame->data.ptr + frame->step*y*2, size.width );
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memcpy( odd->data.ptr + even->step*y,
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frame->data.ptr + frame->step*(y*2+1), size.width );
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}
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__END__;
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}
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/* End of file. */
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