93 lines
2.1 KiB
C
93 lines
2.1 KiB
C
/* @(#) 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
|
|
*/
|
|
|
|
/*
|
|
|
|
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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>
|
|
|
|
#ifdef WITH_DMALLOC
|
|
#include <dmalloc.h>
|
|
#endif /*WITH_DMALLOC*/
|
|
|
|
static int
|
|
extract( IMAGE *in, int x, int y, int w, int h )
|
|
{
|
|
int len;
|
|
char *buf;
|
|
IMAGE *t1 = im_open_local( in, "im_bernd:2", "p" );
|
|
|
|
if( 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 ) != 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 );
|
|
}
|