start jpeg save

This commit is contained in:
John Cupitt 2011-11-24 22:02:49 +00:00
parent ab0f72db62
commit 8e853b2857
2 changed files with 167 additions and 3 deletions

6
TODO
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@ -1,9 +1,9 @@
- get image.c using the new system
- try jpeg save
get image.c using the new system
move format/* to deprecated
try jpeg save
try tiff load

164
libvips/file/jpegsave.c Normal file
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@ -0,0 +1,164 @@
/* save to jpeg
*
* 28/11/03 JC
* - better no-overshoot on tile loop
* 12/11/04
* - better demand size choice for eval
* 30/6/05 JC
* - update im_error()/im_warn()
* - now loads and saves exif data
* 30/7/05
* - now loads ICC profiles
* - now saves ICC profiles from the VIPS header
* 24/8/05
* - jpeg load sets vips xres/yres from exif, if possible
* - jpeg save sets exif xres/yres from vips, if possible
* 29/8/05
* - cut from old vips_jpeg.c
* 20/4/06
* - auto convert to sRGB/mono for save
* 13/10/06
* - add </libexif/ prefix if required
* 19/1/07
* - oop, libexif confusion
* 2/11/07
* - use im_wbuffer() API for BG writes
* 15/2/08
* - write CMYK if Bands == 4 and Type == CMYK
* 12/5/09
* - fix signed/unsigned warning
* 13/8/09
* - allow "none" for profile, meaning don't embed one
* 4/2/10
* - gtkdoc
* 17/7/10
* - use g_assert()
* - allow space for the header in init_destination(), helps writing very
* small JPEGs (thanks Tim Elliott)
* 18/7/10
* - collect im_vips2bufjpeg() output in a list of blocks ... we no
* longer overallocate or underallocate
* 8/7/11
* - oop CMYK write was not inverting, thanks Ole
* 12/10/2011
* - write XMP data
* 18/10/2011
* - update Orientation as well
* 3/11/11
* - rebuild exif tags from coded metadata values
* 24/11/11
* - rework as a class
*/
/*
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
*/
/*
#define DEBUG_VERBOSE
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#ifdef HAVE_EXIF
#ifdef UNTAGGED_EXIF
#include <exif-data.h>
#include <exif-loader.h>
#include <exif-ifd.h>
#include <exif-utils.h>
#else /*!UNTAGGED_EXIF*/
#include <libexif/exif-data.h>
#include <libexif/exif-loader.h>
#include <libexif/exif-ifd.h>
#include <libexif/exif-utils.h>
#endif /*UNTAGGED_EXIF*/
#endif /*HAVE_EXIF*/
#include <vips/vips.h>
#include <vips/buf.h>
#include <vips/internal.h>
/* jpeglib includes jconfig.h, which can define HAVE_STDLIB_H ... which we
* also define. Make sure it's turned off.
*/
#ifdef HAVE_STDLIB_H
#undef HAVE_STDLIB_H
#endif /*HAVE_STDLIB_H*/
#include <jpeglib.h>
#include <jerror.h>
typedef struct _VipsFileSaveJpeg {
VipsFileSave parent_object;
} VipsFileSaveJpeg;
typedef VipsFileSaveClass VipsFileSaveJpegClass;
G_DEFINE_TYPE( VipsFileSaveJpeg, vips_file_save_jpeg, VIPS_TYPE_FILE_SAVE );
static int
vips_file_load_save_build( VipsObject *object )
{
VipsFileSaveJpeg *jpeg = (VipsFileSaveJpeg *) object;
if( VIPS_OBJECT_CLASS( vips_file_save_jpeg_parent_class )->
build( object ) )
return( -1 );
return( 0 );
}
static void
vips_file_save_jpeg_class_init( VipsFileLoadJpegClass *class )
{
GObjectClass *gobject_class = G_OBJECT_CLASS( class );
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsFileSaveClass *save_class = (VipsFileSaveClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "jpegsave";
object_class->description = _( "save jpeg from file" );
object_class->build = vips_file_save_jpeg_build;
}
static void
vips_file_save_jpeg_init( VipsFileSaveJpeg *jpeg )
{
}