start jpeg save
This commit is contained in:
John Cupitt
parent
ab0f72db62
commit
8e853b2857
6
TODO
6
TODO
@ -1,9 +1,9 @@
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- get image.c using the new system
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- try jpeg save
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get image.c using the new system
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move format/* to deprecated
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try jpeg save
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try tiff load
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164
libvips/file/jpegsave.c
Normal file
164
libvips/file/jpegsave.c
Normal file
@ -0,0 +1,164 @@
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/* save to jpeg
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*
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* 28/11/03 JC
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* - better no-overshoot on tile loop
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* 12/11/04
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* - better demand size choice for eval
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* 30/6/05 JC
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* - update im_error()/im_warn()
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* - now loads and saves exif data
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* 30/7/05
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* - now loads ICC profiles
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* - now saves ICC profiles from the VIPS header
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* 24/8/05
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* - jpeg load sets vips xres/yres from exif, if possible
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* - jpeg save sets exif xres/yres from vips, if possible
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* 29/8/05
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* - cut from old vips_jpeg.c
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* 20/4/06
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* - auto convert to sRGB/mono for save
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* 13/10/06
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* - add </libexif/ prefix if required
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* 19/1/07
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* - oop, libexif confusion
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* 2/11/07
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* - use im_wbuffer() API for BG writes
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* 15/2/08
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* - write CMYK if Bands == 4 and Type == CMYK
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* 12/5/09
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* - fix signed/unsigned warning
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* 13/8/09
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* - allow "none" for profile, meaning don't embed one
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* 4/2/10
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* - gtkdoc
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* 17/7/10
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* - use g_assert()
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* - allow space for the header in init_destination(), helps writing very
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* small JPEGs (thanks Tim Elliott)
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* 18/7/10
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* - collect im_vips2bufjpeg() output in a list of blocks ... we no
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* longer overallocate or underallocate
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* 8/7/11
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* - oop CMYK write was not inverting, thanks Ole
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* 12/10/2011
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* - write XMP data
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* 18/10/2011
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* - update Orientation as well
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* 3/11/11
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* - rebuild exif tags from coded metadata values
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* 24/11/11
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* - rework as a class
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*/
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/*
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This file is part of 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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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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/*
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#define DEBUG_VERBOSE
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#define DEBUG
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <setjmp.h>
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#ifdef HAVE_EXIF
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#ifdef UNTAGGED_EXIF
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#include <exif-data.h>
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#include <exif-loader.h>
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#include <exif-ifd.h>
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#include <exif-utils.h>
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#else /*!UNTAGGED_EXIF*/
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#include <libexif/exif-data.h>
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#include <libexif/exif-loader.h>
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#include <libexif/exif-ifd.h>
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#include <libexif/exif-utils.h>
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#endif /*UNTAGGED_EXIF*/
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#endif /*HAVE_EXIF*/
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#include <vips/vips.h>
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#include <vips/buf.h>
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#include <vips/internal.h>
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/* jpeglib includes jconfig.h, which can define HAVE_STDLIB_H ... which we
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* also define. Make sure it's turned off.
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*/
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#ifdef HAVE_STDLIB_H
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#undef HAVE_STDLIB_H
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#endif /*HAVE_STDLIB_H*/
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#include <jpeglib.h>
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#include <jerror.h>
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typedef struct _VipsFileSaveJpeg {
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VipsFileSave parent_object;
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} VipsFileSaveJpeg;
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typedef VipsFileSaveClass VipsFileSaveJpegClass;
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G_DEFINE_TYPE( VipsFileSaveJpeg, vips_file_save_jpeg, VIPS_TYPE_FILE_SAVE );
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static int
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vips_file_load_save_build( VipsObject *object )
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{
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VipsFileSaveJpeg *jpeg = (VipsFileSaveJpeg *) object;
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if( VIPS_OBJECT_CLASS( vips_file_save_jpeg_parent_class )->
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build( object ) )
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return( -1 );
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return( 0 );
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}
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static void
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vips_file_save_jpeg_class_init( VipsFileLoadJpegClass *class )
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS( class );
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VipsObjectClass *object_class = (VipsObjectClass *) class;
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VipsFileSaveClass *save_class = (VipsFileSaveClass *) class;
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gobject_class->set_property = vips_object_set_property;
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gobject_class->get_property = vips_object_get_property;
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object_class->nickname = "jpegsave";
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object_class->description = _( "save jpeg from file" );
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object_class->build = vips_file_save_jpeg_build;
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}
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static void
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vips_file_save_jpeg_init( VipsFileSaveJpeg *jpeg )
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{
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}
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