| /* Write raw image data to file. Usefull when defining new formats... |
| * |
| * Jesper Friis |
| * |
| * 10/06/08 JF |
| * - initial code based on im_vips2ppm() |
| * |
| * 04/07/08 JF |
| * - replaced FILE with plain file handlers for reducing |
| * confusion about binary vs. non-binary file modes. |
| * 4/2/10 |
| * - gtkdoc |
| */ |
| |
| |
| /* |
| This file is part of the QED plugin to 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 |
| |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include <config.h> |
| #endif /*HAVE_CONFIG_H*/ |
| #include <vips/intl.h> |
| |
| #include <ctype.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <time.h> |
| #include <limits.h> |
| |
| #include <glib.h> |
| #include <vips/vips.h> |
| |
| #ifdef WITH_DMALLOC |
| #include <dmalloc.h> |
| #endif /*WITH_DMALLOC*/ |
| |
| |
| |
| /* What we track during a write |
| */ |
| typedef struct { |
| IMAGE *in; |
| int fd; |
| } Write; |
| |
| |
| |
| static void |
| write_destroy( Write *write ) |
| { |
| im_free( write ); |
| } |
| |
| |
| static Write * |
| write_new( IMAGE *in, int fd ) |
| { |
| Write *write; |
| |
| if( !(write = IM_NEW( NULL, Write )) ) |
| return( NULL ); |
| |
| write->in = in; |
| write->fd = fd; |
| |
| if( !write->fd ) { |
| write_destroy( write ); |
| return( NULL ); |
| } |
| |
| return( write ); |
| } |
| |
| |
| static int |
| write_block( REGION *region, Rect *area, void *a ) |
| { |
| Write *write = (Write *) a; |
| int i; |
| |
| for( i = 0; i < area->height; i++ ) { |
| PEL *p = (PEL *) IM_REGION_ADDR( region, area->left, area->top + i ); |
| if( im__write( write->fd, p, IM_IMAGE_SIZEOF_PEL(write->in)*area->width ) ) |
| return( -1 ); |
| } |
| |
| return( 0 ); |
| } |
| |
| |
| /** |
| * im_vips2raw: |
| * @in: image to save |
| * @fd: file descriptor to write to |
| * |
| * Writes the pixels in @in to the file descriptor. It's handy for writing |
| * writers for other formats. |
| * |
| * See also: #VipsFormat, im_raw2vips(). |
| * |
| * Returns: 0 on success, -1 on error. |
| */ |
| int |
| im_vips2raw( IMAGE *in, int fd ) |
| { |
| Write *write; |
| |
| if( im_pincheck( in ) || !(write = write_new( in, fd )) ) |
| return( -1 ); |
| |
| if( vips_sink_disc( in, write_block, write ) ) { |
| write_destroy( write ); |
| return( -1 ); |
| } |
| |
| write_destroy( write ); |
| return( 0 ); |
| } |
| |