add new-style tiff writer
This commit is contained in:
John Cupitt
parent
ad099925d3
commit
0497fceb15
5
TODO
5
TODO
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@ -1,3 +1,8 @@
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- dowes the tiff writer support "none" for the profile?
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- "header fred.tif" does not work, since header uses im_open() which uses
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VipsForeign
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@ -2,10 +2,12 @@ noinst_LTLIBRARIES = libforeign.la
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libforeign_la_SOURCES = \
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vips2jpeg.c \
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vips2tiff.c \
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jpeg2vips.c \
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jpeg.h \
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jpegload.c \
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jpegsave.c \
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tiffsave.c \
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vipssave.c \
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vipsload.c \
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foreign.c
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@ -142,7 +142,7 @@ vips_foreign_save_jpeg_init( VipsForeignSaveJpeg *jpeg )
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typedef struct _VipsForeignSaveJpegFile {
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VipsForeignSaveJpeg parent_object;
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/* Filename for load.
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/* Filename for save.
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*/
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char *filename;
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@ -0,0 +1,399 @@
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/* save to tiff
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*
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* 2/12/11
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* - wrap a class around the tiff writer
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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 <vips/vips.h>
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typedef struct _VipsForeignSaveTiff {
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VipsForeignSave parent_object;
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/* Filename for save.
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*/
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char *filename;
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/* Many options argh.
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*/
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VipsForeignTiffCompression compression;
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int Q;
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VipsForeignTiffPredictor predictor;
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char *profile;
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gboolean tile;
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int tile_width;
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int tile_height;
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gboolean pyramid;
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gboolean squash;
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VipsForeignTiffResunit resunit;
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double xres;
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double yres;
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gboolean bigtiff;
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} VipsForeignSaveTiff;
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typedef VipsForeignSaveClass VipsForeignSaveTiffClass;
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G_DEFINE_TYPE( VipsForeignSaveTiff, vips_foreign_save_tiff,
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VIPS_TYPE_FOREIGN_SAVE );
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static int
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vips_foreign_save_tiff_build( VipsObject *object )
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{
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VipsForeignSave *save = (VipsForeignSave *) object;
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VipsForeignSaveTiff *tiff = (VipsForeignSaveTiff *) object;
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if( VIPS_OBJECT_CLASS( vips_foreign_save_tiff_parent_class )->
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build( object ) )
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return( -1 );
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/* Default xres/yres to the values in the image.
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*/
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if( !vips_argument_get_assigned( object, "xres" ) )
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tiff->xres = save->read->Xres * 10.0;
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if( !vips_argument_get_assigned( object, "yres" ) )
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tiff->yres = save->read->Yres * 10.0;
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if( !vips_argument_get_assigned( object, "resunit" ) &&
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vips_image_get_typeof( im, VIPS_META_RESOLUTION_UNIT ) &&
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!im_meta_get_string( im, VIPS_META_RESOLUTION_UNIT, &p ) &&
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vips_isprefix( "in", p ) ) {
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tiff->resunit = VIPS_FOREIGN_TIFF_RESUNIT_INCH;
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tiff->xres *= 2.54;
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tiff->yres *= 2.54;
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}
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if( vips__tiff_write( save->ready, file->filename,
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tiff->compression, tiff->Q, tiff->predictor,
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tiff->profile,
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tiff->tile, tiff->tile_width, tiff->tile_height,
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tiff->pyramid,
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tiff->squash,
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tiff->xres, tiff->yres,
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tiff->bigtiff ) )
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return( -1 );
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return( 0 );
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}
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static const char *tiff_suffs[] = { ".tif", ".tiff", NULL };
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#define UC VIPS_FORMAT_UCHAR
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/* Type promotion for save ... just always go to uchar.
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*/
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static int bandfmt_tiff[10] = {
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/* UC C US S UI I F X D DX */
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UC, UC, UC, UC, UC, UC, UC, UC, UC, UC
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};
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static void
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vips_foreign_save_tiff_class_init( VipsForeignSaveTiffClass *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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VipsForeignSaveClass *save_class = (VipsForeignSaveClass *) 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 = "tiffsave";
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object_class->description = _( "save image to tiff file" );
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object_class->build = vips_foreign_save_tiff_file_build;
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foreign_class->suffs = vips__tiff_suffs;
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save_class->saveable = VIPS_SAVEABLE_RGB_CMYK;
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save_class->format_table = bandfmt_tiff;
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VIPS_ARG_STRING( class, "filename", 1,
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_( "Filename" ),
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_( "Filename to save to" ),
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VIPS_ARGUMENT_REQUIRED_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiffFile, filename ),
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NULL );
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VIPS_ARG_ENUM( class, "compression", 6,
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_( "Compression" ),
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_( "Compression for this file" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, compression ),
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VIPS_TYPE_FOREIGN_TIFF_COMPRESSION,
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VIPS_FOREIGN_TIFF_COMPRESSION_NONE );
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VIPS_ARG_INT( class, "Q", 7,
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_( "Q" ),
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_( "Q factor" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, Q ),
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1, 100, 75 );
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VIPS_ARG_ENUM( class, "predictor", 8,
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_( "predictor" ),
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_( "Compression prediction" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, predictor ),
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VIPS_TYPE_FOREIGN_TIFF_PREDICTOR,
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VIPS_FOREIGN_TIFF_PREDICTOR_NONE );
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VIPS_ARG_STRING( class, "profile", 9,
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_( "profile" ),
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_( "ICC profile to embed" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, profile ),
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NULL );
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VIPS_ARG_BOOL( class, "tile", 10,
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_( "Tile" ),
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_( "Write a tiled tiff" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, tiff ),
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FALSE );
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VIPS_ARG_INT( class, "tile_width", 11,
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_( "Tile width" ),
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_( "Tile width in pixels" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, tile_width ),
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1, 1024, 128 );
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VIPS_ARG_INT( class, "tile_height", 12,
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_( "Tile height" ),
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_( "Tile height in pixels" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, tile_height ),
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1, 1024, 128 );
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VIPS_ARG_BOOL( class, "pyramid", 13,
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_( "Pyramid" ),
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_( "Write a pyramidal tiff" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, pyramid ),
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FALSE );
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VIPS_ARG_BOOL( class, "squash", 14,
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_( "Squash" ),
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_( "Squash images down to 1 bit" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, squash ),
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FALSE );
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VIPS_ARG_ENUM( class, "resunit", 15,
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_( "Resolution unit" ),
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_( "Resolution unit" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, resunit ),
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VIPS_TYPE_FOREIGN_TIFF_RESUNIT,
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VIPS_FOREIGN_TIFF_RESUNIT_CM );
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VIPS_ARG_DOUBLE( class, "xres", 16,
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_( "Xres" ),
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_( "Horizontal resolution in pixels/mm" ),
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VIPS_ARGUMENT_NONE,
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G_STRUCT_OFFSET( VipsImage, Xres ),
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0, 1000000, 0 );
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VIPS_ARG_DOUBLE( class, "yres", 17,
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_( "Yres" ),
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_( "Vertical resolution in pixels/mm" ),
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VIPS_ARGUMENT_NONE,
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G_STRUCT_OFFSET( VipsImage, Yres ),
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0, 1000000, 0 );
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VIPS_ARG_BOOL( class, "bigtiff", 18,
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_( "Bigtiff" ),
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_( "Write a bigtiff image" ),
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VIPS_ARGUMENT_OPTIONAL_INPUT,
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G_STRUCT_OFFSET( VipsForeignSaveTiff, bigtif ),
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FALSE );
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}
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static void
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vips_foreign_save_tiff_init( VipsForeignSaveTiff *tiff )
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{
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tiff->compression = VIPS_FOREIGN_TIFF_COMPRESSION_NONE;
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tiff->Q = 75;
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tiff->predictor = VIPS_FOREIGN_TIFF_PREDICTOR_NONE;
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tiff->tile_width = 128;
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tiff->tile_height = 128;
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tiff->resunit = VIPS_FOREIGN_TIFF_RESUNIT_CM;
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tiff->xres = 1.0;
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tiff->yres = 1.0;
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}
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/**
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* vips_tiffsave:
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* @in: image to save
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* @filename: file to write to
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* @Q: quality factor
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* @profile: attach this ICC profile
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*
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* Write a VIPS image to a file as TIFF.
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*
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* Use @Q to set the JPEG compression factor. Default 75.
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*
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* Use @profile to give the filename of a profile to be em,bedded in the TIFF.
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* This does not affect the pixels which are written, just the way
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* they are tagged. You can use the special string "none" to mean
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* "don't attach a profile".
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*
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* If no profile is specified and the VIPS header
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* contains an ICC profile named VIPS_META_ICC_NAME ("icc-profile-data"), the
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* profile from the VIPS header will be attached.
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*
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* You can embed options in the filename. They have the form:
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*
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* |[
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* filename.tif:<emphasis>compression</emphasis>,<emphasis>layout</emphasis>,<emphasis>multi-res</emphasis>,<emphasis>format</emphasis>,<emphasis>resolution</emphasis>,<emphasis>icc</emphasis>, <emphasis>bigtiff</emphasis>
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* ]|
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*
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* <itemizedlist>
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* <listitem>
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* <para>
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* <emphasis>compression</emphasis>
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* should be one of "none" (no compression), "jpeg" (JPEG compression),
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* "deflate" (ZIP compression), "packbits" (TIFF packbits compression),
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* "ccittfax4" (CCITT Group 4 fax encoding), "lzw" (Lempel-Ziv compression).
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*
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* "jpeg" compression can be followed by a ":" character and a JPEG quality
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* level; "lzw" and "deflate" can be followed by a ":" and predictor value.
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* The default compression type is "none", the default JPEG quality factor
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* is 75.
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*
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* Predictor is not set by default. There are three predictor values recognised
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* at the moment (2007, July): 1 is no prediction, 2 is a horizontal
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* differencing and 3 is a floating point predictor. Refer to the libtiff
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* specifications for further discussion of various predictors. In short,
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* predictor helps to better compress image, especially in case of digital
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* photos or scanned images and bit depths > 8. Try it to find whether it
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* works for your images.
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*
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* JPEG compression is a good lossy compressor for photographs, packbits is
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* good for 1-bit images, and deflate is the best lossless compression TIFF
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* can do. LZW has patent problems and is no longer recommended.
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>layout</emphasis>
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* should be "strip" (strip layout) or "tile" (tiled layout).
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*
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* "tile" layout can be followed by a ":" character and the horizontal and
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* vertical tile size, separated by a "x" character. The default layout is
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* "strip", and the default tile size is 128 by 128 pixels.
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>multi-res</emphasis>
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* should be "flat" (single image) or "pyramid" (many images arranged in a
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* pyramid). The default multi-res mode is "flat".
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>format</emphasis>
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* shoiuld be "manybit" (don't bit-reduce images) or "onebit" (one band 8
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* bit images are saved as 1 bit). The default format is "multibit".
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>resolution</emphasis>
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* should be "res_cm" (output resolution unit is pixels per centimetre) or
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* "res_inch" (output resolution unit is pixels per inch). The default
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* resolution unit is taken from the header field "resolution-unit"
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* (#IM_META_RESOLUTION_UNIT in C). If this field is not set, then
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* VIPS defaults to cm.
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*
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* The unit can optionally be followed by a ":" character and the
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* horizontal and vertical resolution, separated by a "x" character.
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* You can have a single number with no "x" and set the horizontal and
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* vertical resolutions together.
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>icc</emphasis>
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* Attach this ICC profile.
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* This does not affect the pixels which are written, just the way
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* they are tagged.
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* </para>
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* </listitem>
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* <listitem>
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* <para>
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* <emphasis>bigtiff</emphasis>
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* Set this to 8 to enable bigtiff output. Bigtiff is a variant of the TIFF
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* format that allows more than 4GB in a file.
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* </para>
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* </listitem>
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* </itemizedlist>
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*
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* Example:
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*
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* |[
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* im_vips2jpeg( in, "fred.tif:jpeg,tile,pyramid" );
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* ]|
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*
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* Will write "fred.tif" as a tiled jpeg-compressed pyramid.
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*
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* |[
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* im_vips2jpeg( in, "fred.tif:packbits,tile,,onebit" );
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* ]|
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*
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* Writes a tiled one bit TIFF image (provided fred.v is a one band 8 bit
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* image) compressed with packbits.
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*
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* See also: vips_tiffload(), vips_image_write_file().
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*
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* Returns: 0 on success, -1 on error.
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*/
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int
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vips_tiffsave( VipsImage *in, const char *filename, ... )
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{
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va_list ap;
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int result;
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va_start( ap, filename );
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result = vips_call_split( "tiffsave", ap, in, filename );
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va_end( ap );
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return( result );
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}
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File diff suppressed because it is too large
Load Diff
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@ -237,6 +237,69 @@ int vips_jpegsave( VipsImage *in, const char *filename, ... );
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int vips_jpegsave_buffer( VipsImage *in, void **buf, size_t *len, ... );
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int vips_jpegsave_mime( VipsImage *in, ... );
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/**
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* VipsForeignTiffCompression:
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* @VIPS_FOREIGN_TIFF_COMPRESSION_NONE: no compression
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* @VIPS_FOREIGN_TIFF_COMPRESSION_JPEG: jpeg compression
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* @VIPS_FOREIGN_TIFF_COMPRESSION_DEFLATE: deflate (zip) compression
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* @VIPS_FOREIGN_TIFF_COMPRESSION_PACKBITS: packbits compression
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* @VIPS_FOREIGN_TIFF_COMPRESSION_CCITTFAX4: fax4 compression
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* @VIPS_FOREIGN_TIFF_COMPRESSION_LZW: LZW compression
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*
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* The compression types supported by the tiff writer.
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*
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* Use @Q to set the jpeg compression level, default 75.
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*
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* Use @prediction to set the lzw or deflate prediction, default none.
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*/
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typedef enum {
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VIPS_FOREIGN_TIFF_COMPRESSION_NONE,
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VIPS_FOREIGN_TIFF_COMPRESSION_JPEG,
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VIPS_FOREIGN_TIFF_COMPRESSION_DEFLATE,
|
||||
VIPS_FOREIGN_TIFF_COMPRESSION_PACKBITS,
|
||||
VIPS_FOREIGN_TIFF_COMPRESSION_CCITTFAX4,
|
||||
VIPS_FOREIGN_TIFF_COMPRESSION_LZW,
|
||||
VIPS_FOREIGN_TIFF_COMPRESSION_LAST
|
||||
} VipsForeignTiffCompression;
|
||||
|
||||
/**
|
||||
* VipsForeignTiffPredictor:
|
||||
* @VIPS_FOREIGN_TIFF_PREDICTOR_NONE: no prediction
|
||||
* @VIPS_FOREIGN_TIFF_PREDICTOR_HORIZONTAL: horizontal differenceing
|
||||
* @VIPS_FOREIGN_TIFF_PREDICTOR_FLOAT: float predictor
|
||||
*
|
||||
* The predictor can help deflate and lzw compression.
|
||||
*/
|
||||
typedef enum {
|
||||
VIPS_FOREIGN_TIFF_PREDICTOR_NONE = 1,
|
||||
VIPS_FOREIGN_TIFF_PREDICTOR_HORIZONTAL = 2,
|
||||
VIPS_FOREIGN_TIFF_PREDICTOR_FLOAT = 3,
|
||||
VIPS_FOREIGN_TIFF_PREDICTOR_LAST
|
||||
} VipsForeignTiffPrediction;
|
||||
|
||||
/**
|
||||
* VipsForeignTiffResunit:
|
||||
* @VIPS_FOREIGN_TIFF_RESUNIT_CM: use centimeters
|
||||
* @VIPS_FOREIGN_TIFF_RESUNIT_INCH: use inches
|
||||
*
|
||||
* Use inches or centimeters as the resolution unit for a tiff file.
|
||||
*/
|
||||
typedef enum {
|
||||
VIPS_FOREIGN_TIFF_RESUNIT_CM,
|
||||
VIPS_FOREIGN_TIFF_RESUNIT_INCH,
|
||||
VIPS_FOREIGN_TIFF_RESUNIT_LAST
|
||||
} VipsForeignTiffResunit;
|
||||
|
||||
int vips__tiff_write( VipsImage *in, const char *filename,
|
||||
VipsForeignTiffCompression compression, int Q,
|
||||
VipsForeignTiffPredictor predictor,
|
||||
char *profile,
|
||||
gboolean tile, int tile_width, int tile_height,
|
||||
gboolean pyramid,
|
||||
gboolean squash,
|
||||
VipsForeignTiffResunit resunit, double xres, double yres,
|
||||
gboolean bigtiff );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /*__cplusplus*/
|
||||
|
|
|
|||
Loading…
Reference in New Issue