| /* copy an image to a file and then copy that to the output ... a disc cache |
| * |
| * 16/10/09 |
| * - from im_system() |
| */ |
| |
| /* |
| |
| 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> |
| |
| #ifdef HAVE_UNISTD_H |
| #include <unistd.h> |
| #endif /*HAVE_UNISTD_H*/ |
| #include <stdarg.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include <vips/vips.h> |
| |
| #ifdef WITH_DMALLOC |
| #include <dmalloc.h> |
| #endif /*WITH_DMALLOC*/ |
| |
| /** |
| * im_copy_file: |
| * @in: input image |
| * @out: output image |
| * |
| * Copy an image to a disc file, then copy again to output. If the image is |
| * already a disc file, just copy straight through. |
| * |
| * The disc file is allocated in the same way as im_system_image(). A disc |
| * file is created in /tmp (change this with the TMPDIR environment |
| * variable) named something like "vips-12-34985.v" and the image is written |
| * to that file. The file is automatically deleted when @out is closed. |
| * |
| * See also: im_copy(), im_system_image(). |
| * |
| * Returns: 0 on success, -1 on error |
| */ |
| int |
| im_copy_file( IMAGE *in, IMAGE *out ) |
| { |
| if( !im_isfile( in ) ) { |
| IMAGE *disc; |
| |
| if( !(disc = im__open_temp( "%s.v" )) ) |
| return( -1 ); |
| if( im_add_close_callback( out, |
| (im_callback_fn) im_close, disc, NULL ) ) { |
| im_close( disc ); |
| return( -1 ); |
| } |
| |
| if( im_copy( in, disc ) || |
| im_copy( disc, out ) ) |
| return( -1 ); |
| } |
| else { |
| if( im_copy( in, out ) ) |
| return( -1 ); |
| } |
| |
| return( 0 ); |
| } |