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/* @(#) Extract a tile from a pyramid as a jpeg
* @(#)
* @(#) int
* @(#) im_bernd( const char *tiffname,
* @(#) int x, int y, int w, int h )
* @(#)
* @(#)
* @(#) Returns 0 on success and -1 on error
* @(#)
*
* 7/5/99 JC
* - from im_tiff2vips and im_vips2jpeg, plus some stuff from Steve
* 11/7/01 JC
* - page number now in filename
* 12/5/09
* - fix signed/unsigned warning
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <vips/vips.h>
static int
extract( IMAGE *in, int x, int y, int w, int h )
{
IMAGE *t1;
int len;
char *buf;
if( !(t1 = im_open_local( in, "im_bernd:2", "p" )) ||
im_extract_area( in, t1, x, y, w, h ) ||
im_vips2bufjpeg( t1, in, 75, &buf, &len ) )
return( -1 );
if( fwrite( buf, sizeof( char ), len, stdout ) != (size_t) len ) {
im_error( "im_bernd", "%s", _( "error writing output" ) );
return( -1 );
}
fflush( stdout );
return( 0 );
}
int
im_bernd( const char *tiffname, int x, int y, int w, int h )
{
IMAGE *in;
if( !(in = im_open( "im_bernd:1", "p" )) )
return( -1 );
if( im_tiff2vips( tiffname, in ) ||
extract( in, x, y, w, h ) ) {
im_close( in );
return( -1 );
}
im_close( in );
return( 0 );
}
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