128 lines
2.6 KiB
C
128 lines
2.6 KiB
C
/* Write raw image data to file. Usefull when defining new formats...
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*
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* Jesper Friis
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*
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* 10/06/08 JF
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* - initial code based on im_vips2ppm()
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*
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* 04/07/08 JF
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* - replaced FILE with plain file handlers for reducing
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* confusion about binary vs. non-binary file modes.
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*/
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/*
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This file is part of the QED plugin to 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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#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 <ctype.h>
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#include <stdio.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <limits.h>
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#include <glib/gstring.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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/* What we track during a write
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*/
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typedef struct {
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IMAGE *in;
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im_threadgroup_t *tg;
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int fd;
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} Write;
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static void
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write_destroy( Write *write )
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{
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IM_FREEF( im_threadgroup_free, write->tg );
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im_free( write );
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}
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static Write *
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write_new( IMAGE *in, int fd )
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{
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Write *write;
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if( !(write = IM_NEW( NULL, Write )) )
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return( NULL );
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write->in = in;
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write->tg = im_threadgroup_create( write->in );
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write->fd = fd;
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if( !write->tg || !write->fd ) {
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write_destroy( write );
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return( NULL );
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}
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return( write );
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}
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static int
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write_block( REGION *region, Rect *area, void *a, void *b )
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{
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Write *write = (Write *) a;
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int i;
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for( i = 0; i < area->height; i++ ) {
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PEL *p = (PEL *) IM_REGION_ADDR( region, area->left, area->top + i );
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if( im__write( write->fd, p, IM_IMAGE_SIZEOF_PEL(write->in)*area->width ) )
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return( -1 );
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}
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return( 0 );
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}
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int
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im_vips2raw( IMAGE *in, int fd )
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{
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Write *write;
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if( im_pincheck( in ) || !(write = write_new( in, fd )) )
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return( -1 );
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if( im_wbuffer( write->tg, write_block, write, NULL ) ) {
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write_destroy( write );
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return( -1 );
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}
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write_destroy( write );
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return( 0 );
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}
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