90 lines
2.3 KiB
C
90 lines
2.3 KiB
C
/* @(#) To join two images top bottom. The resultant image has
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* @(#) Ysize = im1.Ysize + im2.Ysize and Xsize the min of im1.Xsize, im2.Xsize
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* @(#) Input images should have the same number of Bands and BandFmt
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* @(#)
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* @(#) Usage:
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* @(#) int im_tbjoin(top, bottom, out)
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* @(#) IMAGE *top, *bottom, *out;
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* @(#)
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* @(#)
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*
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* Copyright: 1990, 1991 Kirk Martinez, N. Dessipris
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* Author: Kirk Martinez, N. Dessipris
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* Written on: 9/6/90
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* Updated: 15/03/1991, N. Dessipris
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* 31/8/93 JC
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* - externs removed
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* 14/11/94 JC
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* - tidied up
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* - now works for IM_CODING_LABQ too
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* - image compatibility bug fixed
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* 28/4/95 JC
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* - y arg to 2nd set of im_writeline()s was wrong
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* 23/10/95 JC
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* - rewritten in terms of im_insert()
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* 14/4/04
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* - sets Xoffset / Yoffset
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif /*HAVE_CONFIG_H*/
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#include <vips/intl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <vips/vips.h>
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif /*WITH_DMALLOC*/
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int
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im_tbjoin( IMAGE *top, IMAGE *bottom, IMAGE *out )
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{
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IMAGE *t1 = im_open_local( out, "im_tbjoin:1", "p" );
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/* Paste top and bottom together.
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*/
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if( !t1 || im_insert( top, bottom, t1, 0, top->Ysize ) )
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return( -1 );
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/* Extract the part which the old im_tbjoin() would have made.
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*/
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if( im_extract_area( t1, out,
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0, 0, IM_MIN( top->Xsize, bottom->Xsize ), t1->Ysize ) )
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return( -1 );
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out->Xoffset = 0;
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out->Yoffset = top->Ysize;
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return( 0 );
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}
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