1502 lines
30 KiB
C
1502 lines
30 KiB
C
/* TIFF parts: Copyright (c) 1988, 1990 by Sam Leffler.
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* All rights reserved.
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*
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* This file is provided for unrestricted use provided that this
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* legend is included on all tape media and as a part of the
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* software program in whole or part. Users may copy, modify or
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* distribute this file at will.
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* -----------------------------
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* Modifications for VIPS: Kirk Martinez 1994
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* 22/11/94 JC
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* - more general
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* - memory leaks fixed
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* 20/3/95 JC
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* - TIFF error handler added
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* - read errors detected correctly
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*
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* Modified to handle LAB in tiff format.
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* It convert LAB-tiff format to IM_TYPE_LABQ in vips format.
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* Copyright July-1995 Ahmed Abbood.
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*
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*
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* 19/9/95 JC
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* - now calls TIFFClose ... stupid
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* 25/1/96 JC
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* - typo on MINISBLACK ...
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* 7/4/97 JC
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* - completely redone for TIFF 6
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* - now full baseline TIFF 6 reader, and does CIELAB as well
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* 11/4/97 JC
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* - added partial read for tiled images
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* 23/4/97 JC
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* - extra subsample parameter
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* - im_istiffpyramid() added
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* 5/12/97 JC
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* - if loading YCbCr, convert to IM_CODING_LABQ
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* 1/5/98 JC
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* - now reads 16-bit greyscale and RGB
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* 26/10/98 JC
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* - now used "rb" mode on systems that need binary open
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* 12/11/98 JC
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* - no sub-sampling if sub == 1
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* 26/2/99 JC
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* - ooops, else missing for subsample stuff above
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* 2/10/99 JC
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* - tiled 16-bit greyscale read was broken
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* - added mutex for TIFF*() calls
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* 11/5/00 JC
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* - removed TIFFmalloc/TIFFfree usage
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* 23/4/01 JC
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* - HAVE_TIFF turns on TIFF goodness
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* 24/5/01 JC
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* - im_tiff2vips_header() added
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* 11/7/01 JC
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* - subsample now in input filename
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* - ... and it's a page number (from 0) instead
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* 21/8/02 JC
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* - now reads CMYK
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* - hmm, dpi -> ppm conversion was wrong!
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* 10/9/02 JC
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* - oops, handle TIFF errors better
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* 2/12/02 JC
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* - reads 8-bit RGBA
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* 12/12/02 JC
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* - reads 16-bit LAB
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* 13/2/03 JC
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* - pixels/cm res read was wrong
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* 17/11/03 Andrey Kiselev
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* - read 32-bit float greyscale and rgb
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* 5/4/04
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* - better handling of edge tiles (thanks Ruven)
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* 16/4/04
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* - cleanup
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* - added broken tile read mode
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* 18/5/04 Andrey Kiselev
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* - better no resolution diagnostic
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* 26/5/04
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* - reads 16 bit RGBA
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* 28/7/04
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* - arrg, 16bit RGB was broken, thanks haida
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* 26/11/04
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* - add a TIFF warning handler, stops occasional libMagick exceptions
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* 9/3/05
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* - load 32-bit float LAB
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* 8/4/05
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* - onebit read no longer reads one byte too many on multiple of 8 wide
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* images
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* 22/6/05
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* - 16 bit LAB read was broken
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* 9/9/05
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* - read any ICCPROFILE tag
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* 8/5/06
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* - set RGB16 and GREY16 Type
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* 21/5/06
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* - use external im_tile_cache() operation for great code shrinkage
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* - less RAM usage too, esp. with >1 CPU
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* - should be slightly faster
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* - removed 'broken' read option
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* 18/7/07 Andrey Kiselev
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* - remove "b" option on TIFFOpen()
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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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/* Turn on debugging output.
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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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#ifndef HAVE_TIFF
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#include <vips/vips.h>
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int
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im_tiff2vips( const char *tiffile, IMAGE *im )
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{
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im_error( "im_tiff2vips", _( "TIFF support disabled" ) );
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return( -1 );
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}
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int
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im_istiffpyramid( const char *name )
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{
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return( 0 );
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}
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int
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im_tiff2vips_header( const char *tiffile, IMAGE *im )
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{
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im_error( "im_tiff2vips", _( "TIFF support disabled" ) );
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return( -1 );
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}
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#else /*HAVE_TIFF*/
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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 <assert.h>
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#include <vips/vips.h>
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#include <vips/thread.h>
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#include <tiffio.h>
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif /*WITH_DMALLOC*/
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/* Scanline-type process function.
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*/
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typedef void (*scanline_process_fn)( PEL *q, PEL *p, int n, void *user );
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/* Stuff we track during a read.
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*/
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typedef struct {
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/* Parameters.
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*/
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char *filename;
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IMAGE *out;
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/* From filename.
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*/
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int page;
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/* The TIFF we read.
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*/
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TIFF *tiff;
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/* Process for this image type.
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*/
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scanline_process_fn sfn;
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void *client;
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/* Geometry.
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*/
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int twidth, theight; /* Tile size */
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/* Only need one of these, since we mutex around TIFF*().
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*/
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GMutex *tlock; /* Lock for TIFF*() calls */
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} ReadTiff;
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/* Reading a YCbCr image ... parameters we use for conversion.
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*/
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typedef struct {
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/* Input and output.
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*/
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TIFF *tif; /* From here */
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IMAGE *im; /* To here */
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/* RGB <-> YCbCr conversion.
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*/
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float LumaRed, LumaGreen, LumaBlue;
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/* RGB -> LAB conversion.
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*/
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void *table;
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} YCbCrParams;
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/* Handle TIFF errors here.
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*/
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static void
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thandler_error( char *module, char *fmt, va_list ap )
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{
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im_verror( module, fmt, ap );
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}
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static void
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thandler_warning( char *module, char *fmt, va_list ap )
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{
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char buf[256];
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im_vsnprintf( buf, 256, fmt, ap );
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im_warn( module, "%s", buf );
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}
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/* Test for field exists.
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*/
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static int
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tfexists( TIFF *tif, ttag_t tag )
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{
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uint32 a, b;
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if( TIFFGetField( tif, tag, &a, &b ) )
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return( 1 );
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else
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return( 0 );
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}
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/* Test a uint16 field. Field must be defined and equal to the value.
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*/
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static int
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tfequals( TIFF *tif, ttag_t tag, uint16 val )
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{
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uint16 fld;
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if( !TIFFGetFieldDefaulted( tif, tag, &fld ) ) {
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im_error( "im_tiff2vips",
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_( "required field %d missing" ), tag );
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return( 0 );
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}
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if( fld != val ) {
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im_error( "im_tiff2vips", _( "required field %d=%d, not %d" ),
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tag, fld, val );
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return( 0 );
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}
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/* All ok.
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*/
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return( 1 );
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}
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/* Get a uint32 field.
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*/
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static int
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tfget32( TIFF *tif, ttag_t tag, int *out )
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{
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uint32 fld;
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if( !TIFFGetFieldDefaulted( tif, tag, &fld ) ) {
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im_error( "im_tiff2vips",
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_( "required field %d missing" ), tag );
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return( 0 );
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}
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/* All ok.
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*/
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*out = fld;
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return( 1 );
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}
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/* Get a uint16 field.
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*/
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static int
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tfget16( TIFF *tif, ttag_t tag, int *out )
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{
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uint16 fld;
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if( !TIFFGetFieldDefaulted( tif, tag, &fld ) ) {
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im_error( "im_tiff2vips",
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_( "required field %d missing" ), tag );
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return( 0 );
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}
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/* All ok.
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*/
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*out = fld;
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return( 1 );
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}
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/* Per-scanline process function for IM_CODING_LABQ.
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*/
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static void
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labpack_line( PEL *q, PEL *p, int n, void *dummy )
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{
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int x;
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for( x = 0; x < n; x++ ) {
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q[0] = p[0];
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q[1] = p[1];
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q[2] = p[2];
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q[3] = 0;
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q += 4;
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p += 3;
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}
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}
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/* Read an 8-bit LAB image.
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*/
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static int
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parse_labpack( ReadTiff *rtiff, IMAGE *out )
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{
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if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 3 ) ||
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!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) )
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return( -1 );
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out->Bands = 4;
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out->Bbits = 8;
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out->BandFmt = IM_BANDFMT_UCHAR;
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out->Coding = IM_CODING_LABQ;
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out->Type = IM_TYPE_LAB;
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rtiff->sfn = labpack_line;
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rtiff->client = NULL;
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return( 0 );
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}
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/* Per-scanline process function for IM_CODING_LABQ.
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*/
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static void
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labs_line( PEL *q, PEL *p, int n, void *dummy )
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{
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int x;
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unsigned short *p1 = (unsigned short *) p;
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short *q1 = (short *) q;
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for( x = 0; x < n; x++ ) {
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q1[0] = p1[0] >> 1;
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q1[1] = p1[1];
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q1[2] = p1[2];
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q1 += 3;
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p1 += 3;
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}
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}
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/* Read a 16-bit LAB image.
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*/
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static int
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parse_labs( ReadTiff *rtiff, IMAGE *out )
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{
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if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 3 ) ||
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!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 16 ) )
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return( -1 );
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out->Bands = 3;
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out->Bbits = 16;
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out->BandFmt = IM_BANDFMT_SHORT;
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out->Coding = IM_CODING_NONE;
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out->Type = IM_TYPE_LABS;
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rtiff->sfn = labs_line;
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rtiff->client = NULL;
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return( 0 );
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}
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/* Per-scanline process function for IM_CODING_LABQ.
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*/
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static void
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ycbcr_line( PEL *q, PEL *p, int n, void *dummy )
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{
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int x;
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for( x = 0; x < n; x++ ) {
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q[0] = p[0];
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q[1] = p[1];
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q[2] = p[2];
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q[3] = 0;
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q += 4;
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p += 3;
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}
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}
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/* Read a YCbCr image.
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*/
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static int
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parse_ycbcr( ReadTiff *rtiff, IMAGE *out )
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{
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if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 3 ) ||
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!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) )
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return( -1 );
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out->Bands = 4;
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out->Bbits = 8;
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out->BandFmt = IM_BANDFMT_UCHAR;
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out->Coding = IM_CODING_LABQ;
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out->Type = IM_TYPE_LAB;
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rtiff->sfn = ycbcr_line;
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rtiff->client = NULL;
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return( 0 );
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}
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/* Per-scanline process function for 1 bit images.
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*/
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static void
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onebit_line( PEL *q, PEL *p, int n, void *flg )
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{
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/* Extract PHOTOMETRIC_INTERPRETATION.
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*/
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int pm = *((int *) flg);
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int x, i, z;
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PEL bits;
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int black = (pm == PHOTOMETRIC_MINISBLACK) ? 0 : 255;
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int white = black ^ -1;
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/* (sigh) how many times have I written this?
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*/
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for( x = 0, i = 0; i < (n >> 3); i++ ) {
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bits = (PEL) p[i];
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for( z = 0; z < 8; z++, x++ ) {
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q[x] = (bits & 128) ? white : black;
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bits <<= 1;
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}
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}
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/* Do last byte in line.
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*/
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if( n & 7 ) {
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bits = p[i];
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for( z = 0; z < (n & 7); z++ ) {
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q[x + z] = (bits & 128) ? white : black;
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bits <<= 1;
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}
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}
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}
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/* Read a 1-bit TIFF image. Pass in pixel values to use for black and white.
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*/
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static int
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parse_onebit( ReadTiff *rtiff, int pm, IMAGE *out )
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{
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int *ppm;
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if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 1 ) ||
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!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 1 ) )
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return( -1 );
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out->Bands = 1;
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out->Bbits = 8;
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out->BandFmt = IM_BANDFMT_UCHAR;
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out->Coding = IM_CODING_NONE;
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out->Type = IM_TYPE_B_W;
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/* Note pm for later.
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*/
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if( !(ppm = IM_ARRAY( out, 1, int )) )
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return( -1 );
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*ppm = pm;
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rtiff->sfn = onebit_line;
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rtiff->client = ppm;
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return( 0 );
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}
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/* Per-scanline process function for 8-bit greyscale images.
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*/
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static void
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greyscale8_line( PEL *q, PEL *p, int n, void *flg )
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{
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/* Extract swap mask.
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*/
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PEL mask = *((PEL *) flg);
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int x;
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/* Read bytes, swapping sense if necessary.
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*/
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for( x = 0; x < n; x++ )
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q[x] = p[x] ^ mask;
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}
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/* Read a 8-bit grey-scale TIFF image.
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*/
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static int
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parse_greyscale8( ReadTiff *rtiff, int pm, IMAGE *out )
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{
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PEL *mask;
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if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 1 ) ||
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!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) )
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return( -1 );
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/* Eor each pel with this later.
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*/
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if( !(mask = IM_ARRAY( out, 1, PEL )) )
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return( -1 );
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*mask = (pm == PHOTOMETRIC_MINISBLACK) ? 0 : 255;
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out->Bands = 1;
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out->Bbits = 8;
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out->BandFmt = IM_BANDFMT_UCHAR;
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out->Coding = IM_CODING_NONE;
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out->Type = IM_TYPE_B_W;
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rtiff->sfn = greyscale8_line;
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rtiff->client = mask;
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return( 0 );
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}
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/* Per-scanline process function for 16-bit greyscale images.
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*/
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static void
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greyscale16_line( PEL *q, PEL *p, int n, void *flg )
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{
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/* Extract swap mask.
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*/
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unsigned short mask = *((unsigned short *) flg);
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unsigned short *p1 = (unsigned short *) p;
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unsigned short *q1 = (unsigned short *) q;
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int x;
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/* Read bytes, swapping sense if necessary.
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*/
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for( x = 0; x < n; x++ )
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q1[x] = p1[x] ^ mask;
|
|
}
|
|
|
|
/* Read a 16-bit grey-scale TIFF image.
|
|
*/
|
|
static int
|
|
parse_greyscale16( ReadTiff *rtiff, int pm, IMAGE *out )
|
|
{
|
|
unsigned short *mask;
|
|
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 1 ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 16 ) )
|
|
return( -1 );
|
|
|
|
/* Eor each pel with this later.
|
|
*/
|
|
if( !(mask = IM_ARRAY( out, 1, unsigned short )) )
|
|
return( -1 );
|
|
mask[0] = (pm == PHOTOMETRIC_MINISBLACK) ? 0 : 65535;
|
|
|
|
out->Bands = 1;
|
|
out->Bbits = 16;
|
|
out->BandFmt = IM_BANDFMT_USHORT;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_GREY16;
|
|
|
|
rtiff->sfn = greyscale16_line;
|
|
rtiff->client = mask;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for 32-bit floating point greyscale images.
|
|
*/
|
|
static void
|
|
greyscale32f_line( PEL *q, PEL *p, int n )
|
|
{
|
|
float *p1 = (float *) p;
|
|
float *q1 = (float *) q;
|
|
int x;
|
|
|
|
for( x = 0; x < n; x++ )
|
|
q1[x] = p1[x];
|
|
}
|
|
|
|
/* Read a 32-bit floating point greyscale TIFF image. What do we do about
|
|
* MINISWHITE/MINISBLACK (pm)? Not sure ... just ignore it.
|
|
*/
|
|
static int
|
|
parse_greyscale32f( ReadTiff *rtiff, int pm, IMAGE *out )
|
|
{
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 1 ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 32 ) )
|
|
return( -1 );
|
|
|
|
out->Bands = 1;
|
|
out->Bbits = 32;
|
|
out->BandFmt = IM_BANDFMT_FLOAT;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_B_W;
|
|
|
|
rtiff->sfn = (scanline_process_fn) greyscale32f_line;
|
|
rtiff->client = NULL;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for palette images.
|
|
*/
|
|
static void
|
|
palette_line( PEL *q, PEL *p, int n, void *flg )
|
|
{
|
|
/* Extract maps.
|
|
*/
|
|
PEL *red = ((PEL **) flg)[0];
|
|
PEL *green = ((PEL **) flg)[1];
|
|
PEL *blue = ((PEL **) flg)[2];
|
|
int x;
|
|
|
|
/* Read bytes, generating colour.
|
|
*/
|
|
for( x = 0; x < n; x++ ) {
|
|
int i = *p++;
|
|
|
|
q[0] = red[i];
|
|
q[1] = green[i];
|
|
q[2] = blue[i];
|
|
|
|
q += 3;
|
|
}
|
|
}
|
|
|
|
/* Read a palette-ised TIFF image. Again, we only allow 8-bits for now.
|
|
*/
|
|
static int
|
|
parse_palette( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
uint16 *tred, *tgreen, *tblue;
|
|
PEL *red, *green, *blue;
|
|
PEL **maps;
|
|
int i;
|
|
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 1 ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) )
|
|
return( -1 );
|
|
|
|
/* Allocate mem for VIPS colour maps.
|
|
*/
|
|
if( !(red = IM_ARRAY( out, 256, PEL )) ||
|
|
!(green = IM_ARRAY( out, 256, PEL )) ||
|
|
!(blue = IM_ARRAY( out, 256, PEL )) ||
|
|
!(maps = IM_ARRAY( out, 3, PEL * )) )
|
|
return( -1 );
|
|
|
|
/* Get maps, convert to 8-bit data.
|
|
*/
|
|
if( !TIFFGetField( rtiff->tiff,
|
|
TIFFTAG_COLORMAP, &tred, &tgreen, &tblue ) ) {
|
|
im_error( "im_tiff2vips", _( "bad colormap" ) );
|
|
return( -1 );
|
|
}
|
|
for( i = 0; i < 256; i++ ) {
|
|
red[i] = tred[i] >> 8;
|
|
green[i] = tgreen[i] >> 8;
|
|
blue[i] = tblue[i] >> 8;
|
|
}
|
|
maps[0] = red;
|
|
maps[1] = green;
|
|
maps[2] = blue;
|
|
|
|
out->Bands = 3;
|
|
out->Bbits = 8;
|
|
out->BandFmt = IM_BANDFMT_UCHAR;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_sRGB;
|
|
|
|
rtiff->sfn = palette_line;
|
|
rtiff->client = maps;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for 8-bit RGB/RGBA.
|
|
*/
|
|
static void
|
|
rgb8_line( PEL *q, PEL *p, int n, IMAGE *im )
|
|
{
|
|
int x, b;
|
|
|
|
for( x = 0; x < n; x++ ) {
|
|
for( b = 0; b < im->Bands; b++ )
|
|
q[b] = p[b];
|
|
|
|
q += im->Bands;
|
|
p += im->Bands;
|
|
}
|
|
}
|
|
|
|
/* Read an 8-bit RGB/RGBA image.
|
|
*/
|
|
static int
|
|
parse_rgb8( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
int bands;
|
|
|
|
/* Check other TIFF fields to make sure we can read this. Can have 4
|
|
* bands for RGBA.
|
|
*/
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) ||
|
|
!tfget16( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, &bands ) )
|
|
return( -1 );
|
|
if( bands != 3 && bands != 4 ) {
|
|
im_error( "im_tiff2vips", _( "3 or 4 bands RGB TIFF only" ) );
|
|
return( -1 );
|
|
}
|
|
|
|
out->Bands = bands;
|
|
out->Bbits = 8;
|
|
out->BandFmt = IM_BANDFMT_UCHAR;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_sRGB;
|
|
|
|
rtiff->sfn = (scanline_process_fn) rgb8_line;
|
|
rtiff->client = out;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for RGB/RGBA 16.
|
|
*/
|
|
static void
|
|
rgb16_line( PEL *q, PEL *p, int n, IMAGE *im )
|
|
{
|
|
int x, b;
|
|
unsigned short *p1 = (unsigned short *) p;
|
|
unsigned short *q1 = (unsigned short *) q;
|
|
|
|
for( x = 0; x < n; x++ ) {
|
|
for( b = 0; b < im->Bands; b++ )
|
|
q1[b] = p1[b];
|
|
|
|
q1 += im->Bands;
|
|
p1 += im->Bands;
|
|
}
|
|
}
|
|
|
|
/* Read a 16-bit RGB/RGBA image.
|
|
*/
|
|
static int
|
|
parse_rgb16( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
int bands;
|
|
|
|
/* Check other TIFF fields to make sure we can read this. Can have 4
|
|
* bands for RGBA.
|
|
*/
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 16 ) ||
|
|
!tfget16( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, &bands ) )
|
|
return( -1 );
|
|
if( bands != 3 && bands != 4 ) {
|
|
im_error( "im_tiff2vips", _( "3 or 4 bands RGB TIFF only" ) );
|
|
return( -1 );
|
|
}
|
|
|
|
out->Bands = bands;
|
|
out->Bbits = 16;
|
|
out->BandFmt = IM_BANDFMT_USHORT;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_RGB16;
|
|
|
|
rtiff->sfn = (scanline_process_fn) rgb16_line;
|
|
rtiff->client = out;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for 32f.
|
|
*/
|
|
static void
|
|
r32f_line( PEL *q, PEL *p, int n, void *dummy )
|
|
{
|
|
int x;
|
|
float *p1 = (float *) p;
|
|
float *q1 = (float *) q;
|
|
|
|
for( x = 0; x < n; x++ ) {
|
|
q1[0] = p1[0];
|
|
q1[1] = p1[1];
|
|
q1[2] = p1[2];
|
|
|
|
q1 += 3;
|
|
p1 += 3;
|
|
}
|
|
}
|
|
|
|
/* Read a 32-bit float image. RGB or LAB, with or without alpha.
|
|
*/
|
|
static int
|
|
parse_32f( ReadTiff *rtiff, int pm, IMAGE *out )
|
|
{
|
|
int bands;
|
|
|
|
if( !tfget16( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, &bands ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 32 ) )
|
|
return( -1 );
|
|
|
|
/* Can be 4 for images with an alpha channel.
|
|
*/
|
|
assert( bands == 3 || bands == 4 );
|
|
|
|
out->Bands = bands;
|
|
out->Bbits = 32;
|
|
out->BandFmt = IM_BANDFMT_FLOAT;
|
|
out->Coding = IM_CODING_NONE;
|
|
|
|
switch( pm ) {
|
|
case PHOTOMETRIC_CIELAB:
|
|
out->Type = IM_TYPE_LAB;
|
|
break;
|
|
|
|
case PHOTOMETRIC_RGB:
|
|
out->Type = IM_TYPE_sRGB;
|
|
break;
|
|
|
|
default:
|
|
assert( 0 );
|
|
}
|
|
|
|
rtiff->sfn = r32f_line;
|
|
rtiff->client = NULL;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Per-scanline process function for CMYK8.
|
|
*/
|
|
static void
|
|
cmyk8_line( PEL *q, PEL *p, int n, void *dummy )
|
|
{
|
|
int x;
|
|
|
|
for( x = 0; x < n; x++ ) {
|
|
q[0] = p[0];
|
|
q[1] = p[1];
|
|
q[2] = p[2];
|
|
q[3] = p[3];
|
|
|
|
q += 4;
|
|
p += 4;
|
|
}
|
|
}
|
|
|
|
/* Read a CMYK image.
|
|
*/
|
|
static int
|
|
parse_cmyk( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
if( !tfequals( rtiff->tiff, TIFFTAG_SAMPLESPERPIXEL, 4 ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, 8 ) ||
|
|
!tfequals( rtiff->tiff, TIFFTAG_INKSET, INKSET_CMYK ) )
|
|
return( -1 );
|
|
|
|
out->Bands = 4;
|
|
out->Bbits = 8;
|
|
out->BandFmt = IM_BANDFMT_UCHAR;
|
|
out->Coding = IM_CODING_NONE;
|
|
out->Type = IM_TYPE_CMYK;
|
|
|
|
rtiff->sfn = cmyk8_line;
|
|
rtiff->client = NULL;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Read resolution from a TIFF image.
|
|
*/
|
|
static int
|
|
parse_resolution( TIFF *tiff, IMAGE *out )
|
|
{
|
|
float x, y;
|
|
int ru;
|
|
|
|
if( TIFFGetFieldDefaulted( tiff, TIFFTAG_XRESOLUTION, &x ) &&
|
|
TIFFGetFieldDefaulted( tiff, TIFFTAG_YRESOLUTION, &y ) &&
|
|
tfget16( tiff, TIFFTAG_RESOLUTIONUNIT, &ru ) ) {
|
|
switch( ru ) {
|
|
case RESUNIT_NONE:
|
|
break;
|
|
|
|
case RESUNIT_INCH:
|
|
/* In pixels-per-inch ... convert to mm.
|
|
*/
|
|
x /= 10.0 * 2.54;
|
|
y /= 10.0 * 2.54;
|
|
break;
|
|
|
|
case RESUNIT_CENTIMETER:
|
|
/* In pixels-per-centimetre ... convert to mm.
|
|
*/
|
|
x /= 10.0;
|
|
y /= 10.0;
|
|
break;
|
|
|
|
default:
|
|
im_error( "im_tiff2vips",
|
|
_( "unknown resolution unit" ) );
|
|
return( -1 );
|
|
}
|
|
}
|
|
else {
|
|
im_warning( "im_tiff2vips: no resolution information for "
|
|
"TIFF image \"%s\" -- defaulting to 1 pixel per mm",
|
|
TIFFFileName( tiff ) );
|
|
x = 1.0;
|
|
y = 1.0;
|
|
}
|
|
|
|
out->Xres = x;
|
|
out->Yres = y;
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Look at PhotometricInterpretation and BitsPerPixel, and try to figure out
|
|
* which of the image classes this is.
|
|
*/
|
|
static int
|
|
parse_header( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
int pm, bps, format;
|
|
uint32 data_length;
|
|
void *data;
|
|
|
|
/* Ban separate planes, too annoying.
|
|
*/
|
|
if( tfexists( rtiff->tiff, TIFFTAG_PLANARCONFIG ) &&
|
|
!tfequals( rtiff->tiff,
|
|
TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG ) )
|
|
return( -1 );
|
|
|
|
/* Always need dimensions.
|
|
*/
|
|
if( !tfget32( rtiff->tiff, TIFFTAG_IMAGEWIDTH, &out->Xsize ) ||
|
|
!tfget32( rtiff->tiff, TIFFTAG_IMAGELENGTH, &out->Ysize ) ||
|
|
parse_resolution( rtiff->tiff, out ) )
|
|
return( -1 );
|
|
|
|
/* Try to find out which type of TIFF image it is.
|
|
*/
|
|
if( !tfget16( rtiff->tiff, TIFFTAG_PHOTOMETRIC, &pm ) ||
|
|
!tfget16( rtiff->tiff, TIFFTAG_BITSPERSAMPLE, &bps ) )
|
|
return( -1 );
|
|
|
|
switch( pm ) {
|
|
case PHOTOMETRIC_CIELAB:
|
|
switch( bps ) {
|
|
case 8:
|
|
if( parse_labpack( rtiff, out ) )
|
|
return( -1 );
|
|
break;
|
|
|
|
case 16:
|
|
if( parse_labs( rtiff, out ) )
|
|
return( -1 );
|
|
break;
|
|
|
|
case 32:
|
|
if( !tfget16( rtiff->tiff,
|
|
TIFFTAG_SAMPLEFORMAT, &format ) )
|
|
return( -1 );
|
|
|
|
if( format == SAMPLEFORMAT_IEEEFP ) {
|
|
if( parse_32f( rtiff, pm, out ) )
|
|
return( -1 );
|
|
}
|
|
else {
|
|
im_error( "im_tiff2vips",
|
|
_( "unsupported sample "
|
|
"format %d for lab image" ),
|
|
format );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
im_error( "im_tiff2vips",
|
|
_( "unsupported depth %d for LAB image" ),
|
|
bps );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
case PHOTOMETRIC_YCBCR:
|
|
/* Easy decision!
|
|
*/
|
|
if( parse_ycbcr( rtiff, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
case PHOTOMETRIC_MINISWHITE:
|
|
case PHOTOMETRIC_MINISBLACK:
|
|
switch( bps ) {
|
|
case 1:
|
|
if( parse_onebit( rtiff, pm, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
case 8:
|
|
if( parse_greyscale8( rtiff, pm, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
case 16:
|
|
if( parse_greyscale16( rtiff, pm, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
case 32:
|
|
if( !tfget16( rtiff->tiff,
|
|
TIFFTAG_SAMPLEFORMAT, &format ) )
|
|
return( -1 );
|
|
|
|
if( format == SAMPLEFORMAT_IEEEFP ) {
|
|
if( parse_greyscale32f( rtiff, pm, out ) )
|
|
return( -1 );
|
|
}
|
|
else {
|
|
im_error( "im_tiff2vips",
|
|
_( "unsupported sample format "
|
|
"%d for greyscale image" ),
|
|
format );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
im_error( "im_tiff2vips", _( "unsupported depth %d "
|
|
"for greyscale image" ), bps );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
case PHOTOMETRIC_PALETTE:
|
|
/* Full colour pallette.
|
|
*/
|
|
if( parse_palette( rtiff, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
case PHOTOMETRIC_RGB:
|
|
/* Plain RGB.
|
|
*/
|
|
switch( bps ) {
|
|
case 8:
|
|
if( parse_rgb8( rtiff, out ) )
|
|
return( -1 );
|
|
break;
|
|
|
|
case 16:
|
|
if( parse_rgb16( rtiff, out ) )
|
|
return( -1 );
|
|
break;
|
|
|
|
case 32:
|
|
if( !tfget16( rtiff->tiff,
|
|
TIFFTAG_SAMPLEFORMAT, &format ) )
|
|
return( -1 );
|
|
|
|
if( format == SAMPLEFORMAT_IEEEFP ) {
|
|
if( parse_32f( rtiff, pm, out ) )
|
|
return( -1 );
|
|
}
|
|
else {
|
|
im_error( "im_tiff2vips",
|
|
_( "unsupported sample "
|
|
"format %d for rgb image" ),
|
|
format );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
im_error( "im_tiff2vips", _( "unsupported depth %d "
|
|
"for RGB image" ), bps );
|
|
return( -1 );
|
|
}
|
|
|
|
break;
|
|
|
|
case PHOTOMETRIC_SEPARATED:
|
|
if( parse_cmyk( rtiff, out ) )
|
|
return( -1 );
|
|
|
|
break;
|
|
|
|
default:
|
|
im_error( "im_tiff2vips", _( "unknown photometric "
|
|
"interpretation %d" ), pm );
|
|
return( -1 );
|
|
}
|
|
|
|
/* Read any ICC profile.
|
|
*/
|
|
if( TIFFGetField( rtiff->tiff,
|
|
TIFFTAG_ICCPROFILE, &data_length, &data ) ) {
|
|
void *data_copy;
|
|
|
|
if( !(data_copy = im_malloc( NULL, data_length )) )
|
|
return( -1 );
|
|
memcpy( data_copy, data, data_length );
|
|
if( im_meta_set_blob( out, IM_META_ICC_NAME,
|
|
(im_callback_fn) im_free, data_copy, data_length ) ) {
|
|
im_free( data_copy );
|
|
return( -1 );
|
|
}
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Allocate a tile buffer. Have one of these for each thread so we can unpack
|
|
* to vips in parallel.
|
|
*/
|
|
static void *
|
|
seq_start( IMAGE *out, void *a, void *b )
|
|
{
|
|
ReadTiff *rtiff = (ReadTiff *) a;
|
|
tdata_t *buf;
|
|
|
|
if( !(buf = im_malloc( NULL, TIFFTileSize( rtiff->tiff ) )) )
|
|
return( NULL );
|
|
|
|
return( (void *) buf );
|
|
}
|
|
|
|
/* Loop over the output region, painting in tiles from the file.
|
|
*/
|
|
static int
|
|
fill_region( REGION *out, void *seq, void *a, void *b )
|
|
{
|
|
tdata_t *buf = (tdata_t *) seq;
|
|
ReadTiff *rtiff = (ReadTiff *) a;
|
|
Rect *r = &out->valid;
|
|
|
|
/* Find top left of tiles we need.
|
|
*/
|
|
int xs = (r->left / rtiff->twidth) * rtiff->twidth;
|
|
int ys = (r->top / rtiff->theight) * rtiff->theight;
|
|
|
|
/* Sizeof a line of bytes in the TIFF tile.
|
|
*/
|
|
int tls = TIFFTileSize( rtiff->tiff ) / rtiff->theight;
|
|
|
|
/* Sizeof a pel in the TIFF file. This won't work for formats which
|
|
* are <1 byte per pel, like onebit :-( Fortunately, it's only used
|
|
* to calculate addresses within a tile, and because we are wrapped in
|
|
* im_tile_cache(), we will never have to calculate positions within a
|
|
* tile.
|
|
*/
|
|
int tps = tls / rtiff->twidth;
|
|
|
|
int x, y, z;
|
|
|
|
for( y = ys; y < IM_RECT_BOTTOM( r ); y += rtiff->theight )
|
|
for( x = xs; x < IM_RECT_RIGHT( r ); x += rtiff->twidth ) {
|
|
Rect tile;
|
|
Rect hit;
|
|
|
|
/* Read that tile.
|
|
*/
|
|
g_mutex_lock( rtiff->tlock );
|
|
if( TIFFReadTile( rtiff->tiff, buf,
|
|
x, y, 0, 0 ) < 0 ) {
|
|
g_mutex_unlock( rtiff->tlock );
|
|
return( -1 );
|
|
}
|
|
g_mutex_unlock( rtiff->tlock );
|
|
|
|
/* The tile we read.
|
|
*/
|
|
tile.left = x;
|
|
tile.top = y;
|
|
tile.width = rtiff->twidth;
|
|
tile.height = rtiff->twidth;
|
|
|
|
/* The section that hits the region we are building.
|
|
*/
|
|
im_rect_intersectrect( &tile, r, &hit );
|
|
|
|
/* Unpack to VIPS format. We can do this in parallel.
|
|
* Just unpack the section of the tile we need.
|
|
*/
|
|
for( z = 0; z < hit.height; z++ ) {
|
|
PEL *p = (PEL *) buf +
|
|
(hit.left - tile.left) * tps +
|
|
(hit.top - tile.top + z) * tls;
|
|
PEL *q = (PEL *) IM_REGION_ADDR( out,
|
|
hit.left, hit.top + z );
|
|
|
|
rtiff->sfn( q, p, hit.width, rtiff->client );
|
|
}
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
static int
|
|
seq_stop( void *seq, void *a, void *b )
|
|
{
|
|
im_free( seq );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Tile-type TIFF reader core - pass in a per-tile transform. Generate into
|
|
* the im and do it all partially.
|
|
*/
|
|
static int
|
|
read_tilewise( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
IMAGE *raw;
|
|
|
|
/* Tile cache: keep enough for two complete rows of tiles.
|
|
* This lets us do (smallish) area ops, like im_conv(), while
|
|
* still only hitting each TIFF tile once.
|
|
*/
|
|
if( !(raw = im_open_local( out, "cache", "p" )) )
|
|
return( -1 );
|
|
|
|
/* Get tiling geometry.
|
|
*/
|
|
if( !tfget32( rtiff->tiff, TIFFTAG_TILEWIDTH, &rtiff->twidth ) ||
|
|
!tfget32( rtiff->tiff, TIFFTAG_TILELENGTH, &rtiff->theight ) )
|
|
return( -1 );
|
|
|
|
/* Make sure we can write PIO-style.
|
|
*/
|
|
if( im_poutcheck( raw ) )
|
|
return( -1 );
|
|
|
|
/* Parse the TIFF header and set up raw.
|
|
*/
|
|
if( parse_header( rtiff, raw ) )
|
|
return( -1 );
|
|
|
|
/* Process and save as VIPS.
|
|
*/
|
|
if( im_demand_hint( raw, IM_SMALLTILE, NULL ) ||
|
|
im_generate( raw,
|
|
seq_start, fill_region, seq_stop, rtiff, NULL ) )
|
|
return( -1 );
|
|
|
|
/* Copy to out, adding a cache. Enough tiles for two complete rows.
|
|
*/
|
|
if( im_tile_cache( raw, out,
|
|
rtiff->twidth, rtiff->theight,
|
|
2 * (1 + raw->Xsize / rtiff->twidth) ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Scanline-type TIFF reader core - pass in a per-scanline transform.
|
|
*/
|
|
static int
|
|
read_scanlinewise( ReadTiff *rtiff, IMAGE *out )
|
|
{
|
|
PEL *vbuf;
|
|
tdata_t tbuf;
|
|
int y;
|
|
|
|
if( parse_header( rtiff, out ) )
|
|
return( -1 );
|
|
|
|
/* Make sure we can write WIO-style.
|
|
*/
|
|
if( im_outcheck( out ) || im_setupout( out ) )
|
|
return( -1 );
|
|
|
|
/* Make VIPS output buffer.
|
|
*/
|
|
if( !(vbuf = IM_ARRAY( out, IM_IMAGE_SIZEOF_LINE( out ), PEL )) )
|
|
return( -1 );
|
|
|
|
/* Make TIFF line input buffer.
|
|
*/
|
|
if( !(tbuf = im_malloc( out, TIFFScanlineSize( rtiff->tiff ) )) )
|
|
return( -1 );
|
|
|
|
for( y = 0; y < out->Ysize; y++ ) {
|
|
/* Read TIFF scanline.
|
|
*/
|
|
if( TIFFReadScanline( rtiff->tiff, tbuf, y, 0 ) < 0 ) {
|
|
im_error( "im_tiff2vips", _( "read error" ) );
|
|
return( -1 );
|
|
}
|
|
|
|
/* Process and save as VIPS.
|
|
*/
|
|
rtiff->sfn( vbuf, tbuf, out->Xsize, rtiff->client );
|
|
if( im_writeline( y, out, vbuf ) )
|
|
return( -1 );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Free a ReadTiff.
|
|
*/
|
|
static int
|
|
readtiff_destroy( ReadTiff *rtiff )
|
|
{
|
|
IM_FREEF( TIFFClose, rtiff->tiff );
|
|
IM_FREEF( g_mutex_free, rtiff->tlock );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Make a ReadTiff.
|
|
*/
|
|
static ReadTiff *
|
|
readtiff_new( const char *filename, IMAGE *out )
|
|
{
|
|
ReadTiff *rtiff;
|
|
char name[FILENAME_MAX];
|
|
char mode[FILENAME_MAX];
|
|
char *p, *q;
|
|
|
|
if( !(rtiff = IM_NEW( out, ReadTiff )) )
|
|
return( NULL );
|
|
rtiff->filename = NULL;
|
|
rtiff->out = out;
|
|
im_filename_split( filename, name, mode );
|
|
rtiff->filename = im_strdup( out, name );
|
|
rtiff->page = 0;
|
|
rtiff->tiff = NULL;
|
|
rtiff->sfn = NULL;
|
|
rtiff->client = NULL;
|
|
rtiff->twidth = 0;
|
|
rtiff->theight = 0;
|
|
rtiff->tlock = g_mutex_new();
|
|
|
|
if( im_add_close_callback( out,
|
|
(im_callback_fn) readtiff_destroy, rtiff, NULL ) ) {
|
|
readtiff_destroy( rtiff );
|
|
return( NULL );
|
|
}
|
|
|
|
/* Parse out params.
|
|
*/
|
|
p = &mode[0];
|
|
if( (q = im_getnextoption( &p )) ) {
|
|
rtiff->page = atoi( q );
|
|
|
|
if( rtiff->page < 0 || rtiff->page > 1000 ) {
|
|
im_error( "im_tiff2vips", _( "bad page number %d" ),
|
|
rtiff->page );
|
|
return( NULL );
|
|
}
|
|
}
|
|
|
|
return( rtiff );
|
|
}
|
|
|
|
/* Pull out the nth directory from a TIFF file.
|
|
*/
|
|
static TIFF *
|
|
get_directory( const char *filename, int page )
|
|
{
|
|
TIFF *tif;
|
|
int i;
|
|
|
|
/* No need to use "b" and it means something different anyway.
|
|
*/
|
|
if( !(tif = TIFFOpen( filename, "r" )) ) {
|
|
im_error( "im_tiff2vips",
|
|
_( "unable to open \"%s\" for input" ),
|
|
filename );
|
|
return( NULL );
|
|
}
|
|
|
|
for( i = 0; i < page; i++ )
|
|
if( !TIFFReadDirectory( tif ) ) {
|
|
/* Run out of directories.
|
|
*/
|
|
TIFFClose( tif );
|
|
return( NULL );
|
|
}
|
|
|
|
return( tif );
|
|
}
|
|
|
|
int
|
|
im_istiffpyramid( const char *name )
|
|
{
|
|
TIFF *tif;
|
|
|
|
TIFFSetErrorHandler( (TIFFErrorHandler) thandler_error );
|
|
TIFFSetWarningHandler( (TIFFErrorHandler) thandler_warning );
|
|
|
|
if( (tif = get_directory( name, 2 )) ) {
|
|
/* We can see page 2 ... assume it is.
|
|
*/
|
|
TIFFClose( tif );
|
|
return( 1 );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
int
|
|
im_tiff2vips( const char *filename, IMAGE *out )
|
|
{
|
|
ReadTiff *rtiff;
|
|
|
|
#ifdef DEBUG
|
|
printf( "im_tiff2vips: libtiff version is \"%s\"\n", TIFFGetVersion() );
|
|
#endif /*DEBUG*/
|
|
|
|
TIFFSetErrorHandler( (TIFFErrorHandler) thandler_error );
|
|
TIFFSetWarningHandler( (TIFFErrorHandler) thandler_warning );
|
|
|
|
if( !(rtiff = readtiff_new( filename, out )) )
|
|
return( -1 );
|
|
|
|
if( !(rtiff->tiff = get_directory( rtiff->filename, rtiff->page )) ) {
|
|
im_error( "im_tiff2vips", _( "TIFF file does not "
|
|
"contain page %d" ), rtiff->page );
|
|
return( -1 );
|
|
}
|
|
|
|
if( TIFFIsTiled( rtiff->tiff ) ) {
|
|
if( read_tilewise( rtiff, out ) )
|
|
return( -1 );
|
|
}
|
|
else {
|
|
if( read_scanlinewise( rtiff, out ) )
|
|
return( -1 );
|
|
}
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
/* Just parse the header.
|
|
*/
|
|
int
|
|
im_tiff2vips_header( const char *filename, IMAGE *out )
|
|
{
|
|
ReadTiff *rtiff;
|
|
|
|
TIFFSetErrorHandler( (TIFFErrorHandler) thandler_error );
|
|
TIFFSetWarningHandler( (TIFFErrorHandler) thandler_warning );
|
|
|
|
if( !(rtiff = readtiff_new( filename, out )) )
|
|
return( -1 );
|
|
|
|
if( !(rtiff->tiff = get_directory( rtiff->filename, rtiff->page )) ) {
|
|
im_error( "im_tiff2vips",
|
|
_( "TIFF file does not contain page %d" ),
|
|
rtiff->page );
|
|
return( -1 );
|
|
}
|
|
|
|
if( parse_header( rtiff, out ) )
|
|
return( -1 );
|
|
|
|
return( 0 );
|
|
}
|
|
|
|
#endif /*HAVE_TIFF*/
|