88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
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/* @(#) Creates a byte square waveform. Binary image with 0 and 255
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* @(#) Usage: squares file xsize ysize horfreq verfreq
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*
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* Copyright: 1991, N. Dessipris.
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*
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* Author: N. Dessipris
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* Written on: 26/03/1991
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* Modified on:
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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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int
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main( int argc, char **argv )
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{
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IMAGE *image, *bufim;
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int xsize, ysize;
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double horfreq, verfreq;
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if( im_init_world( argv[0] ) )
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error_exit( "unable to start VIPS" );
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if (argc != 6)
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error_exit("Usage:\n%s file xsize ysize horfreq verfreq\n\n\
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WARNING: The program overwrites the output file if the owner has rw access.",
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argv[0]);
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xsize = atoi(argv[2]);
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ysize = atoi(argv[3]);
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horfreq = atof(argv[4]);
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verfreq = atof(argv[5]);
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if ( (bufim = im_setbuf("temp.v")) == NULL )
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error_exit("Unable to set buffer image");
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if ( im_sines(bufim, xsize, ysize, horfreq, verfreq) == -1 )
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error_exit("Unable to im_sines");
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if ( (image = im_openout(argv[1])) == NULL )
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error_exit("Unable to open %s for output", argv[1]);
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if ( im_thresh(bufim, image, (double)0.0) == -1)
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error_exit("Unable to im_thresh");
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if ( im_updatehist(image, argv[0], argc - 1, argv + 1) == -1)
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error_exit("Unable to update history");
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if ( ( im_close( image ) == -1 )||( im_close( bufim ) == -1 ) )
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error_exit("Unable to close %s or buffer image",
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argv[1]);
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return(0);
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}
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