f2558c8426
of image contains fewer number of scanlines than specified by the `/Height' variable. See http://bugzilla.remotesensing.org/show_bug.cgi?id=164 for explanation.
1922 lines
51 KiB
C
1922 lines
51 KiB
C
/* $Header: /cvs/maptools/cvsroot/libtiff/tools/tiff2ps.c,v 1.9 2002-06-22 10:32:56 dron Exp $ */
|
||
|
||
/*
|
||
* Copyright (c) 1988-1997 Sam Leffler
|
||
* Copyright (c) 1991-1997 Silicon Graphics, Inc.
|
||
*
|
||
* Permission to use, copy, modify, distribute, and sell this software and
|
||
* its documentation for any purpose is hereby granted without fee, provided
|
||
* that (i) the above copyright notices and this permission notice appear in
|
||
* all copies of the software and related documentation, and (ii) the names of
|
||
* Sam Leffler and Silicon Graphics may not be used in any advertising or
|
||
* publicity relating to the software without the specific, prior written
|
||
* permission of Sam Leffler and Silicon Graphics.
|
||
*
|
||
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
|
||
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
|
||
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
|
||
*
|
||
* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
|
||
* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
|
||
* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
||
* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
|
||
* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
||
* OF THIS SOFTWARE.
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||
*/
|
||
|
||
#include <stdio.h>
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#include <stdlib.h> /* for atof */
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||
#include <math.h>
|
||
#include <time.h>
|
||
|
||
#include "tiffio.h"
|
||
|
||
/*
|
||
* Revision history
|
||
*
|
||
* 2001-Mar-21
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* I (Bruce A. Mallett) added this revision history comment ;)
|
||
*
|
||
* Fixed PS_Lvl2page() code which outputs non-ASCII85 raw
|
||
* data. Moved test for when to output a line break to
|
||
* *after* the output of a character. This just serves
|
||
* to fix an eye-nuisance where the first line of raw
|
||
* data was one character shorter than subsequent lines.
|
||
*
|
||
* Added an experimental ASCII85 encoder which can be used
|
||
* only when there is a single buffer of bytes to be encoded.
|
||
* This version is much faster at encoding a straight-line
|
||
* buffer of data because it can avoid alot of the loop
|
||
* overhead of the byte-by-bye version. To use this version
|
||
* you need to define EXP_ASCII85ENCODER (experimental ...).
|
||
*
|
||
* Added bug fix given by Michael Schmidt to PS_Lvl2page()
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||
* in which an end-of-data marker ('>') was not being output
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||
* when producing non-ASCII85 encoded PostScript Level 2
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||
* data.
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||
*
|
||
* Fixed PS_Lvl2colorspace() so that it no longer assumes that
|
||
* a TIFF having more than 2 planes is a CMYK. This routine
|
||
* no longer looks at the samples per pixel but instead looks
|
||
* at the "photometric" value. This change allows support of
|
||
* CMYK TIFFs.
|
||
*
|
||
* Modified the PostScript L2 imaging loop so as to test if
|
||
* the input stream is still open before attempting to do a
|
||
* flushfile on it. This was done because some RIPs close
|
||
* the stream after doing the image operation.
|
||
*
|
||
* Got rid of the realloc() being done inside a loop in the
|
||
* PSRawDataBW() routine. The code now walks through the
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||
* byte-size array outside the loop to determine the largest
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||
* size memory block that will be needed.
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||
*
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||
* Added "-m" switch to ask tiff2ps to, where possible, use the
|
||
* "imagemask" operator instead of the "image" operator.
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||
*
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||
* Added the "-i #" switch to allow interpolation to be disabled.
|
||
*
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||
* Unrolled a loop or two to improve performance.
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||
*/
|
||
|
||
/*
|
||
* Define EXP_ASCII85ENCODER if you want to use an experimental
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* version of the ASCII85 encoding routine. The advantage of
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* using this routine is that tiff2ps will convert to ASCII85
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* encoding at between 3 and 4 times the speed as compared to
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* using the old (non-experimental) encoder. The disadvantage
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||
* is that you will be using a new (and unproven) encoding
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||
* routine. So user beware, you have been warned!
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||
*/
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||
|
||
#define EXP_ASCII85ENCODER
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||
|
||
/*
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||
* NB: this code assumes uint32 works with printf's %l[ud].
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||
*/
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||
#ifndef TRUE
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||
#define TRUE 1
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#define FALSE 0
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||
#endif
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||
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||
int ascii85 = FALSE; /* use ASCII85 encoding */
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int interpolate = TRUE; /* interpolate level2 image */
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int level2 = FALSE; /* generate PostScript level 2 */
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int printAll = FALSE; /* print all images in file */
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||
int generateEPSF = TRUE; /* generate Encapsulated PostScript */
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||
int PSduplex = FALSE; /* enable duplex printing */
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||
int PStumble = FALSE; /* enable top edge binding */
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||
int PSavoiddeadzone = TRUE; /* enable avoiding printer deadzone */
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float maxPageHeight = 0; /* maximum size to fit on page */
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float splitOverlap = 0; /* amount for split pages to overlag */
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char *filename; /* input filename */
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||
int useImagemask = FALSE; /* Use imagemask instead of image operator */
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uint16 res_unit = 0; /* Resolution units: 1 - inches, 2 - cm*/
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||
/*
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* ASCII85 Encoding Support.
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*/
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unsigned char ascii85buf[10];
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int ascii85count;
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||
int ascii85breaklen;
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||
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int TIFF2PS(FILE*, TIFF*, float, float);
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void PSpage(FILE*, TIFF*, uint32, uint32);
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||
void PSColorContigPreamble(FILE*, uint32, uint32, int);
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void PSColorSeparatePreamble(FILE*, uint32, uint32, int);
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||
void PSDataColorContig(FILE*, TIFF*, uint32, uint32, int);
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||
void PSDataColorSeparate(FILE*, TIFF*, uint32, uint32, int);
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void PSDataPalette(FILE*, TIFF*, uint32, uint32);
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||
void PSDataBW(FILE*, TIFF*, uint32, uint32);
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||
void PSRawDataBW(FILE*, TIFF*, uint32, uint32);
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||
void Ascii85Init(void);
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||
void Ascii85Put(unsigned char code, FILE* fd);
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void Ascii85Flush(FILE* fd);
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void PSHead(FILE*, TIFF*, uint32, uint32, float, float, float, float);
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void PSTail(FILE*, int);
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||
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||
#if defined( EXP_ASCII85ENCODER)
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int Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, int raw_l );
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#endif
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static void usage(int);
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int
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main(int argc, char* argv[])
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{
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int dirnum = -1, c, np = 0;
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float pageWidth = 0;
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float pageHeight = 0;
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uint32 diroff = 0;
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extern char *optarg;
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||
extern int optind;
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||
FILE* output = stdout;
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||
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||
while ((c = getopt(argc, argv, "h:H:L:i:w:d:o:O:acemnzps128DT")) != -1)
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||
switch (c) {
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case 'd':
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||
dirnum = atoi(optarg);
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break;
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||
case 'D':
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||
PSduplex = TRUE;
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||
break;
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case 'i':
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interpolate = atoi(optarg) ? TRUE:FALSE;
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break;
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case 'T':
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PStumble = TRUE;
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break;
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case 'e':
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||
generateEPSF = TRUE;
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||
break;
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||
case 'h':
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||
pageHeight = atof(optarg);
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break;
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||
case 'H':
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maxPageHeight = atof(optarg);
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if (pageHeight==0) pageHeight = maxPageHeight;
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break;
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case 'L':
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splitOverlap = atof(optarg);
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break;
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case 'm':
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useImagemask = TRUE;
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break;
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case 'o':
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diroff = (uint32) strtoul(optarg, NULL, 0);
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break;
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||
case 'O': /* XXX too bad -o is already taken */
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output = fopen(optarg, "w");
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||
if (output == NULL) {
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fprintf(stderr,
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"%s: %s: Cannot open output file.\n",
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||
argv[0], optarg);
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exit(-2);
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||
}
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break;
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case 'a':
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printAll = TRUE;
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/* fall thru... */
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||
case 'p':
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generateEPSF = FALSE;
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break;
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case 's':
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||
printAll = FALSE;
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||
break;
|
||
case 'w':
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||
pageWidth = atof(optarg);
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||
break;
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||
case 'z':
|
||
PSavoiddeadzone = FALSE;
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||
break;
|
||
case '1':
|
||
level2 = FALSE;
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||
ascii85 = FALSE;
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||
break;
|
||
case '2':
|
||
level2 = TRUE;
|
||
ascii85 = TRUE; /* default to yes */
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||
break;
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||
case '8':
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ascii85 = FALSE;
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break;
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case 'c':
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res_unit = RESUNIT_CENTIMETER;
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break;
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||
case 'n':
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||
res_unit = RESUNIT_INCH;
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||
break;
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||
case '?':
|
||
usage(-1);
|
||
}
|
||
for (; argc - optind > 0; optind++) {
|
||
TIFF* tif = TIFFOpen(filename = argv[optind], "r");
|
||
if (tif != NULL) {
|
||
if (dirnum != -1 && !TIFFSetDirectory(tif, dirnum))
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||
return (-1);
|
||
else if (diroff != 0 &&
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!TIFFSetSubDirectory(tif, diroff))
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||
return (-1);
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||
np = TIFF2PS(output, tif, pageWidth, pageHeight);
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||
TIFFClose(tif);
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||
}
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||
}
|
||
if (np)
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||
PSTail(output, np);
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||
else
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||
usage(-1);
|
||
if (output != stdout)
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||
fclose(output);
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||
return (0);
|
||
}
|
||
|
||
static uint16 samplesperpixel;
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||
static uint16 bitspersample;
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||
static uint16 planarconfiguration;
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||
static uint16 photometric;
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||
static uint16 compression;
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||
static uint16 extrasamples;
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||
static int alpha;
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||
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||
static int
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||
checkImage(TIFF* tif)
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||
{
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||
switch (photometric) {
|
||
case PHOTOMETRIC_YCBCR:
|
||
if ((compression == COMPRESSION_JPEG
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|| compression == COMPRESSION_OJPEG)
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||
&& planarconfiguration == PLANARCONFIG_CONTIG) {
|
||
/* can rely on libjpeg to convert to RGB */
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||
TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE,
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||
JPEGCOLORMODE_RGB);
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||
photometric = PHOTOMETRIC_RGB;
|
||
} else {
|
||
if (level2)
|
||
break;
|
||
TIFFError(filename, "Can not handle image with %s",
|
||
"PhotometricInterpretation=YCbCr");
|
||
return (0);
|
||
}
|
||
/* fall thru... */
|
||
case PHOTOMETRIC_RGB:
|
||
if (alpha && bitspersample != 8) {
|
||
TIFFError(filename,
|
||
"Can not handle %d-bit/sample RGB image with alpha",
|
||
bitspersample);
|
||
return (0);
|
||
}
|
||
/* fall thru... */
|
||
case PHOTOMETRIC_SEPARATED:
|
||
case PHOTOMETRIC_PALETTE:
|
||
case PHOTOMETRIC_MINISBLACK:
|
||
case PHOTOMETRIC_MINISWHITE:
|
||
break;
|
||
case PHOTOMETRIC_LOGL:
|
||
case PHOTOMETRIC_LOGLUV:
|
||
if (compression != COMPRESSION_SGILOG &&
|
||
compression != COMPRESSION_SGILOG24) {
|
||
TIFFError(filename,
|
||
"Can not handle %s data with compression other than SGILog",
|
||
(photometric == PHOTOMETRIC_LOGL) ?
|
||
"LogL" : "LogLuv"
|
||
);
|
||
return (0);
|
||
}
|
||
/* rely on library to convert to RGB/greyscale */
|
||
TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT);
|
||
photometric = (photometric == PHOTOMETRIC_LOGL) ?
|
||
PHOTOMETRIC_MINISBLACK : PHOTOMETRIC_RGB;
|
||
bitspersample = 8;
|
||
break;
|
||
case PHOTOMETRIC_CIELAB:
|
||
/* fall thru... */
|
||
default:
|
||
TIFFError(filename,
|
||
"Can not handle image with PhotometricInterpretation=%d",
|
||
photometric);
|
||
return (0);
|
||
}
|
||
switch (bitspersample) {
|
||
case 1: case 2:
|
||
case 4: case 8:
|
||
break;
|
||
default:
|
||
TIFFError(filename, "Can not handle %d-bit/sample image",
|
||
bitspersample);
|
||
return (0);
|
||
}
|
||
if (planarconfiguration == PLANARCONFIG_SEPARATE && extrasamples > 0)
|
||
TIFFWarning(filename, "Ignoring extra samples");
|
||
return (1);
|
||
}
|
||
|
||
#define PS_UNIT_SIZE 72.0
|
||
#define PSUNITS(npix,res) ((npix) * (PS_UNIT_SIZE / (res)))
|
||
|
||
static char RGBcolorimage[] = "\
|
||
/bwproc {\n\
|
||
rgbproc\n\
|
||
dup length 3 idiv string 0 3 0\n\
|
||
5 -1 roll {\n\
|
||
add 2 1 roll 1 sub dup 0 eq {\n\
|
||
pop 3 idiv\n\
|
||
3 -1 roll\n\
|
||
dup 4 -1 roll\n\
|
||
dup 3 1 roll\n\
|
||
5 -1 roll put\n\
|
||
1 add 3 0\n\
|
||
} { 2 1 roll } ifelse\n\
|
||
} forall\n\
|
||
pop pop pop\n\
|
||
} def\n\
|
||
/colorimage where {pop} {\n\
|
||
/colorimage {pop pop /rgbproc exch def {bwproc} image} bind def\n\
|
||
} ifelse\n\
|
||
";
|
||
|
||
/*
|
||
* Adobe Photoshop requires a comment line of the form:
|
||
*
|
||
* %ImageData: <cols> <rows> <depth> <main channels> <pad channels>
|
||
* <block size> <1 for binary|2 for hex> "data start"
|
||
*
|
||
* It is claimed to be part of some future revision of the EPS spec.
|
||
*/
|
||
static void
|
||
PhotoshopBanner(FILE* fd, uint32 w, uint32 h, int bs, int nc, char* startline)
|
||
{
|
||
fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"",
|
||
(long) w, (long) h, bitspersample, nc, bs);
|
||
fprintf(fd, startline, nc);
|
||
fprintf(fd, "\"\n");
|
||
}
|
||
|
||
/*
|
||
* pw : image width in pixels
|
||
* ph : image height in pixels
|
||
* pprw : image width in PS units (72 dpi)
|
||
* pprh : image height in PS units (72 dpi)
|
||
*/
|
||
static void
|
||
setupPageState(TIFF* tif, uint32* pw, uint32* ph, float* pprw, float* pprh)
|
||
{
|
||
float xres, yres;
|
||
|
||
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, pw);
|
||
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, ph);
|
||
if (res_unit == 0)
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit);
|
||
/*
|
||
* Calculate printable area.
|
||
*/
|
||
if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) || !xres)
|
||
xres = PS_UNIT_SIZE;
|
||
if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) || !yres)
|
||
yres = PS_UNIT_SIZE;
|
||
switch (res_unit) {
|
||
case RESUNIT_CENTIMETER:
|
||
xres *= 2.54, yres *= 2.54;
|
||
break;
|
||
case RESUNIT_INCH:
|
||
break;
|
||
case RESUNIT_NONE:
|
||
default:
|
||
xres *= PS_UNIT_SIZE, yres *= PS_UNIT_SIZE;
|
||
break;
|
||
}
|
||
*pprh = PSUNITS(*ph, yres);
|
||
*pprw = PSUNITS(*pw, xres);
|
||
}
|
||
|
||
static int
|
||
isCCITTCompression(TIFF* tif)
|
||
{
|
||
uint16 compress;
|
||
TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress);
|
||
return (compress == COMPRESSION_CCITTFAX3 ||
|
||
compress == COMPRESSION_CCITTFAX4 ||
|
||
compress == COMPRESSION_CCITTRLE ||
|
||
compress == COMPRESSION_CCITTRLEW);
|
||
}
|
||
|
||
static tsize_t tf_bytesperrow;
|
||
static tsize_t ps_bytesperrow;
|
||
static tsize_t tf_rowsperstrip;
|
||
static tsize_t tf_numberstrips;
|
||
static char *hex = "0123456789abcdef";
|
||
|
||
/*
|
||
* imagewidth & imageheight are 1/72 inches
|
||
* pagewidth & pageheight are inches
|
||
*/
|
||
int
|
||
PlaceImage(FILE *fp, float pagewidth, float pageheight,
|
||
float imagewidth, float imageheight, int splitpage)
|
||
{
|
||
float xtran = 0;
|
||
float ytran = 0;
|
||
float xscale = 1;
|
||
float yscale = 1;
|
||
float subimageheight;
|
||
float splitheight;
|
||
float overlap;
|
||
|
||
pagewidth *= PS_UNIT_SIZE;
|
||
pageheight *= PS_UNIT_SIZE;
|
||
|
||
if (maxPageHeight==0)
|
||
splitheight = 0;
|
||
else
|
||
splitheight = maxPageHeight * PS_UNIT_SIZE;
|
||
overlap = splitOverlap * PS_UNIT_SIZE;
|
||
|
||
/*
|
||
* WIDTH:
|
||
* if too wide, scrunch to fit
|
||
* else leave it alone
|
||
*/
|
||
if (imagewidth <= pagewidth) {
|
||
xscale = imagewidth;
|
||
} else {
|
||
xscale = pagewidth;
|
||
}
|
||
|
||
/* HEIGHT:
|
||
* if too long, scrunch to fit
|
||
* if too short, move to top of page
|
||
*/
|
||
if (imageheight <= pageheight) {
|
||
yscale = imageheight;
|
||
ytran = pageheight - imageheight;
|
||
} else if (imageheight > pageheight &&
|
||
(splitheight == 0 || imageheight <= splitheight)) {
|
||
yscale = pageheight;
|
||
} else /* imageheight > splitheight */ {
|
||
subimageheight = imageheight - (pageheight-overlap)*splitpage;
|
||
if (subimageheight <= pageheight) {
|
||
yscale = imageheight;
|
||
ytran = pageheight - subimageheight;
|
||
splitpage = 0;
|
||
} else if ( subimageheight > pageheight && subimageheight <= splitheight) {
|
||
yscale = imageheight * pageheight / subimageheight;
|
||
ytran = 0;
|
||
splitpage = 0;
|
||
} else /* sumimageheight > splitheight */ {
|
||
yscale = imageheight;
|
||
ytran = pageheight - subimageheight;
|
||
splitpage++;
|
||
}
|
||
}
|
||
|
||
fprintf(fp,"%f %f translate\n",xtran,ytran);
|
||
fprintf(fp,"%f %f scale\n",xscale,yscale);
|
||
|
||
return splitpage;
|
||
}
|
||
|
||
|
||
/* returns the sequence number of the page processed */
|
||
int
|
||
TIFF2PS(FILE* fd, TIFF* tif, float pw, float ph)
|
||
{
|
||
uint32 w, h;
|
||
float ox, oy, prw, prh;
|
||
float scale;
|
||
uint32 subfiletype;
|
||
uint16* sampleinfo;
|
||
static int npages = 0;
|
||
int split;
|
||
|
||
if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox))
|
||
ox = 0;
|
||
if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy))
|
||
oy = 0;
|
||
setupPageState(tif, &w, &h, &prw, &prh);
|
||
|
||
do {
|
||
tf_numberstrips = TIFFNumberOfStrips(tif);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP,
|
||
&tf_rowsperstrip);
|
||
setupPageState(tif, &w, &h, &prw, &prh);
|
||
if (!npages)
|
||
PSHead(fd, tif, w, h, prw, prh, ox, oy);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE,
|
||
&bitspersample);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL,
|
||
&samplesperpixel);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG,
|
||
&planarconfiguration);
|
||
TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES,
|
||
&extrasamples, &sampleinfo);
|
||
alpha = (extrasamples == 1 &&
|
||
sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA);
|
||
if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) {
|
||
switch (samplesperpixel - extrasamples) {
|
||
case 1:
|
||
if (isCCITTCompression(tif))
|
||
photometric = PHOTOMETRIC_MINISWHITE;
|
||
else
|
||
photometric = PHOTOMETRIC_MINISBLACK;
|
||
break;
|
||
case 3:
|
||
photometric = PHOTOMETRIC_RGB;
|
||
break;
|
||
case 4:
|
||
photometric = PHOTOMETRIC_SEPARATED;
|
||
break;
|
||
}
|
||
}
|
||
if (checkImage(tif)) {
|
||
tf_bytesperrow = TIFFScanlineSize(tif);
|
||
npages++;
|
||
fprintf(fd, "%%%%Page: %d %d\n", npages, npages);
|
||
fprintf(fd, "gsave\n");
|
||
fprintf(fd, "100 dict begin\n");
|
||
if (pw != 0 && ph != 0) {
|
||
if (maxPageHeight) { /* used -H option */
|
||
split = PlaceImage(fd,pw,ph,prw,prh,0);
|
||
while( split ) {
|
||
PSpage(fd, tif, w, h);
|
||
fprintf(fd, "end\n");
|
||
fprintf(fd, "grestore\n");
|
||
fprintf(fd, "showpage\n");
|
||
npages++;
|
||
fprintf(fd, "%%%%Page: %d %d\n", npages, npages);
|
||
fprintf(fd, "gsave\n");
|
||
fprintf(fd, "100 dict begin\n");
|
||
split = PlaceImage(fd,pw,ph,prw,prh,split);
|
||
}
|
||
} else {
|
||
/* NB: maintain image aspect ratio */
|
||
scale = (pw*PS_UNIT_SIZE/prw) < (ph*PS_UNIT_SIZE/prh) ?
|
||
(pw*PS_UNIT_SIZE/prw) :
|
||
(ph*PS_UNIT_SIZE/prh);
|
||
if (scale > 1.0)
|
||
scale = 1.0;
|
||
fprintf(fd, "0 %f translate\n",
|
||
ph*PS_UNIT_SIZE-prh*scale);
|
||
fprintf(fd, "%f %f scale\n", prw*scale, prh*scale);
|
||
}
|
||
} else
|
||
fprintf(fd, "%f %f scale\n", prw, prh);
|
||
PSpage(fd, tif, w, h);
|
||
fprintf(fd, "end\n");
|
||
fprintf(fd, "grestore\n");
|
||
fprintf(fd, "showpage\n");
|
||
}
|
||
if (generateEPSF)
|
||
break;
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_SUBFILETYPE, &subfiletype);
|
||
} while (((subfiletype & FILETYPE_PAGE) || printAll) &&
|
||
TIFFReadDirectory(tif));
|
||
|
||
return(npages);
|
||
}
|
||
|
||
|
||
static char DuplexPreamble[] = "\
|
||
%%BeginFeature: *Duplex True\n\
|
||
systemdict begin\n\
|
||
/languagelevel where { pop languagelevel } { 1 } ifelse\n\
|
||
2 ge { 1 dict dup /Duplex true put setpagedevice }\n\
|
||
{ statusdict /setduplex known { statusdict begin setduplex true end } if\n\
|
||
} ifelse\n\
|
||
end\n\
|
||
%%EndFeature\n\
|
||
";
|
||
|
||
static char TumblePreamble[] = "\
|
||
%%BeginFeature: *Tumble True\n\
|
||
systemdict begin\n\
|
||
/languagelevel where { pop languagelevel } { 1 } ifelse\n\
|
||
2 ge { 1 dict dup /Tumble true put setpagedevice }\n\
|
||
{ statusdict /settumble known { statusdict begin settumble true end } if\n\
|
||
} ifelse\n\
|
||
end\n\
|
||
%%EndFeature\n\
|
||
";
|
||
|
||
static char AvoidDeadZonePreamble[] = "\
|
||
gsave newpath clippath pathbbox grestore\n\
|
||
4 2 roll 2 copy translate\n\
|
||
exch 3 1 roll sub 3 1 roll sub exch\n\
|
||
currentpagedevice /PageSize get aload pop\n\
|
||
exch 3 1 roll div 3 1 roll div abs exch abs\n\
|
||
2 copy gt { exch } if pop\n\
|
||
dup 1 lt { dup scale } { pop } ifelse\n\
|
||
";
|
||
|
||
void
|
||
PSHead(FILE *fd, TIFF *tif, uint32 w, uint32 h, float pw, float ph,
|
||
float ox, float oy)
|
||
{
|
||
time_t t;
|
||
|
||
(void) tif; (void) w; (void) h;
|
||
t = time(0);
|
||
fprintf(fd, "%%!PS-Adobe-3.0%s\n", generateEPSF ? " EPSF-3.0" : "");
|
||
fprintf(fd, "%%%%Creator: tiff2ps\n");
|
||
fprintf(fd, "%%%%Title: %s\n", filename);
|
||
fprintf(fd, "%%%%CreationDate: %s", ctime(&t));
|
||
fprintf(fd, "%%%%DocumentData: Clean7Bit\n");
|
||
fprintf(fd, "%%%%Origin: %ld %ld\n", (long) ox, (long) oy);
|
||
/* NB: should use PageBoundingBox */
|
||
fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n",
|
||
(long) ceil(pw), (long) ceil(ph));
|
||
fprintf(fd, "%%%%LanguageLevel: %d\n", level2 ? 2 : 1);
|
||
fprintf(fd, "%%%%Pages: (atend)\n");
|
||
fprintf(fd, "%%%%EndComments\n");
|
||
fprintf(fd, "%%%%BeginSetup\n");
|
||
if (PSduplex)
|
||
fprintf(fd, "%s", DuplexPreamble);
|
||
if (PStumble)
|
||
fprintf(fd, "%s", TumblePreamble);
|
||
if (PSavoiddeadzone && level2)
|
||
fprintf(fd, "%s", AvoidDeadZonePreamble);
|
||
fprintf(fd, "%%%%EndSetup\n");
|
||
}
|
||
|
||
void
|
||
PSTail(FILE *fd, int npages)
|
||
{
|
||
fprintf(fd, "%%%%Trailer\n");
|
||
fprintf(fd, "%%%%Pages: %d\n", npages);
|
||
fprintf(fd, "%%%%EOF\n");
|
||
}
|
||
|
||
static int
|
||
checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b)
|
||
{
|
||
(void) tif;
|
||
while (n-- > 0)
|
||
if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256)
|
||
return (16);
|
||
TIFFWarning(filename, "Assuming 8-bit colormap");
|
||
return (8);
|
||
}
|
||
|
||
static void
|
||
PS_Lvl2colorspace(FILE* fd, TIFF* tif)
|
||
{
|
||
uint16 *rmap, *gmap, *bmap;
|
||
int i, num_colors;
|
||
const char * colorspace_p;
|
||
|
||
switch ( photometric )
|
||
{
|
||
case PHOTOMETRIC_SEPARATED:
|
||
colorspace_p = "CMYK";
|
||
break;
|
||
|
||
case PHOTOMETRIC_RGB:
|
||
colorspace_p = "RGB";
|
||
break;
|
||
|
||
default:
|
||
colorspace_p = "Gray";
|
||
}
|
||
|
||
/*
|
||
* Set up PostScript Level 2 colorspace according to
|
||
* section 4.8 in the PostScript refenence manual.
|
||
*/
|
||
fputs("% PostScript Level 2 only.\n", fd);
|
||
if (photometric != PHOTOMETRIC_PALETTE) {
|
||
if (photometric == PHOTOMETRIC_YCBCR) {
|
||
/* MORE CODE HERE */
|
||
}
|
||
fprintf(fd, "/Device%s setcolorspace\n", colorspace_p );
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* Set up an indexed/palette colorspace
|
||
*/
|
||
num_colors = (1 << bitspersample);
|
||
if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) {
|
||
TIFFError(filename,
|
||
"Palette image w/o \"Colormap\" tag");
|
||
return;
|
||
}
|
||
if (checkcmap(tif, num_colors, rmap, gmap, bmap) == 16) {
|
||
/*
|
||
* Convert colormap to 8-bits values.
|
||
*/
|
||
#define CVT(x) (((x) * 255) / ((1L<<16)-1))
|
||
for (i = 0; i < num_colors; i++) {
|
||
rmap[i] = CVT(rmap[i]);
|
||
gmap[i] = CVT(gmap[i]);
|
||
bmap[i] = CVT(bmap[i]);
|
||
}
|
||
#undef CVT
|
||
}
|
||
fprintf(fd, "[ /Indexed /DeviceRGB %d", num_colors - 1);
|
||
if (ascii85) {
|
||
Ascii85Init();
|
||
fputs("\n<~", fd);
|
||
ascii85breaklen -= 2;
|
||
} else
|
||
fputs(" <", fd);
|
||
for (i = 0; i < num_colors; i++) {
|
||
if (ascii85) {
|
||
Ascii85Put(rmap[i], fd);
|
||
Ascii85Put(gmap[i], fd);
|
||
Ascii85Put(bmap[i], fd);
|
||
} else {
|
||
fputs((i % 8) ? " " : "\n ", fd);
|
||
fprintf(fd, "%02x%02x%02x",
|
||
rmap[i], gmap[i], bmap[i]);
|
||
}
|
||
}
|
||
if (ascii85)
|
||
Ascii85Flush(fd);
|
||
else
|
||
fputs(">\n", fd);
|
||
fputs("] setcolorspace\n", fd);
|
||
}
|
||
|
||
static int
|
||
PS_Lvl2ImageDict(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
int use_rawdata;
|
||
uint32 tile_width, tile_height;
|
||
uint16 predictor, minsamplevalue, maxsamplevalue;
|
||
int repeat_count;
|
||
char im_h[64], im_x[64], im_y[64];
|
||
char * imageOp = "image";
|
||
|
||
if ( useImagemask && (bitspersample == 1) )
|
||
imageOp = "imagemask";
|
||
|
||
(void)strcpy(im_x, "0");
|
||
(void)sprintf(im_y, "%lu", (long) h);
|
||
(void)sprintf(im_h, "%lu", (long) h);
|
||
tile_width = w;
|
||
tile_height = h;
|
||
if (TIFFIsTiled(tif)) {
|
||
repeat_count = TIFFNumberOfTiles(tif);
|
||
TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width);
|
||
TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height);
|
||
if (tile_width > w || tile_height > h ||
|
||
(w % tile_width) != 0 || (h % tile_height != 0)) {
|
||
/*
|
||
* The tiles does not fit image width and height.
|
||
* Set up a clip rectangle for the image unit square.
|
||
*/
|
||
fputs("0 0 1 1 rectclip\n", fd);
|
||
}
|
||
if (tile_width < w) {
|
||
fputs("/im_x 0 def\n", fd);
|
||
(void)strcpy(im_x, "im_x neg");
|
||
}
|
||
if (tile_height < h) {
|
||
fputs("/im_y 0 def\n", fd);
|
||
(void)sprintf(im_y, "%lu im_y sub", (unsigned long) h);
|
||
}
|
||
} else {
|
||
repeat_count = tf_numberstrips;
|
||
tile_height = tf_rowsperstrip;
|
||
if (tile_height > h)
|
||
tile_height = h;
|
||
if (repeat_count > 1) {
|
||
fputs("/im_y 0 def\n", fd);
|
||
fprintf(fd, "/im_h %lu def\n",
|
||
(unsigned long) tile_height);
|
||
(void)strcpy(im_h, "im_h");
|
||
(void)sprintf(im_y, "%lu im_y sub", (unsigned long) h);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Output start of exec block
|
||
*/
|
||
fputs("{ % exec\n", fd);
|
||
|
||
if (repeat_count > 1)
|
||
fprintf(fd, "%d { %% repeat\n", repeat_count);
|
||
|
||
/*
|
||
* Output filter options and image dictionary.
|
||
*/
|
||
if (ascii85)
|
||
fputs(" /im_stream currentfile /ASCII85Decode filter def\n",
|
||
fd);
|
||
fputs(" <<\n", fd);
|
||
fputs(" /ImageType 1\n", fd);
|
||
fprintf(fd, " /Width %lu\n", (unsigned long) tile_width);
|
||
/*
|
||
* Workaround for some software that may crash when last strip
|
||
* of image contains fewer number of scanlines than specified
|
||
* by the `/Height' variable. So for stripped images with multiple
|
||
* strips we will set `/Height' as `im_h', because one is
|
||
* recalculated for each strip - including the (smaller) final strip.
|
||
* For tiled images and images with only one strip `/Height' will
|
||
* contain number of scanlines in tile (or image height in case of
|
||
* one-stripped image).
|
||
*/
|
||
if (TIFFIsTiled(tif) || tf_numberstrips == 1)
|
||
fprintf(fd, " /Height %lu\n", (unsigned long) tile_height);
|
||
else
|
||
fprintf(fd, " /Height im_h\n");
|
||
|
||
if (planarconfiguration == PLANARCONFIG_SEPARATE && samplesperpixel > 1)
|
||
fputs(" /MultipleDataSources true\n", fd);
|
||
fprintf(fd, " /ImageMatrix [ %lu 0 0 %ld %s %s ]\n",
|
||
(unsigned long) w, - (long)h, im_x, im_y);
|
||
fprintf(fd, " /BitsPerComponent %d\n", bitspersample);
|
||
fprintf(fd, " /Interpolate %s\n", interpolate ? "true" : "false");
|
||
|
||
switch (samplesperpixel) {
|
||
case 1:
|
||
switch (photometric) {
|
||
case PHOTOMETRIC_MINISBLACK:
|
||
fputs(" /Decode [0 1]\n", fd);
|
||
break;
|
||
case PHOTOMETRIC_MINISWHITE:
|
||
switch (compression) {
|
||
case COMPRESSION_CCITTRLE:
|
||
case COMPRESSION_CCITTRLEW:
|
||
case COMPRESSION_CCITTFAX3:
|
||
case COMPRESSION_CCITTFAX4:
|
||
/*
|
||
* Manage inverting with /Blackis1 flag
|
||
* since there migth be uncompressed parts
|
||
*/
|
||
fputs(" /Decode [0 1]\n", fd);
|
||
break;
|
||
default:
|
||
/*
|
||
* ERROR...
|
||
*/
|
||
fputs(" /Decode [1 0]\n", fd);
|
||
break;
|
||
}
|
||
break;
|
||
case PHOTOMETRIC_PALETTE:
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_MINSAMPLEVALUE,
|
||
&minsamplevalue);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_MAXSAMPLEVALUE,
|
||
&maxsamplevalue);
|
||
fprintf(fd, " /Decode [%u %u]\n",
|
||
minsamplevalue, maxsamplevalue);
|
||
break;
|
||
default:
|
||
/*
|
||
* ERROR ?
|
||
*/
|
||
fputs(" /Decode [0 1]\n", fd);
|
||
break;
|
||
}
|
||
break;
|
||
case 3:
|
||
switch (photometric) {
|
||
case PHOTOMETRIC_RGB:
|
||
fputs(" /Decode [0 1 0 1 0 1]\n", fd);
|
||
break;
|
||
case PHOTOMETRIC_MINISWHITE:
|
||
case PHOTOMETRIC_MINISBLACK:
|
||
default:
|
||
/*
|
||
* ERROR??
|
||
*/
|
||
fputs(" /Decode [0 1 0 1 0 1]\n", fd);
|
||
break;
|
||
}
|
||
break;
|
||
case 4:
|
||
/*
|
||
* ERROR??
|
||
*/
|
||
fputs(" /Decode [0 1 0 1 0 1 0 1]\n", fd);
|
||
break;
|
||
}
|
||
fputs(" /DataSource", fd);
|
||
if (planarconfiguration == PLANARCONFIG_SEPARATE &&
|
||
samplesperpixel > 1)
|
||
fputs(" [", fd);
|
||
if (ascii85)
|
||
fputs(" im_stream", fd);
|
||
else
|
||
fputs(" currentfile /ASCIIHexDecode filter", fd);
|
||
|
||
use_rawdata = TRUE;
|
||
switch (compression) {
|
||
case COMPRESSION_NONE: /* 1: uncompressed */
|
||
break;
|
||
case COMPRESSION_CCITTRLE: /* 2: CCITT modified Huffman RLE */
|
||
case COMPRESSION_CCITTRLEW: /* 32771: #1 w/ word alignment */
|
||
case COMPRESSION_CCITTFAX3: /* 3: CCITT Group 3 fax encoding */
|
||
case COMPRESSION_CCITTFAX4: /* 4: CCITT Group 4 fax encoding */
|
||
fputs("\n\t<<\n", fd);
|
||
if (compression == COMPRESSION_CCITTFAX3) {
|
||
uint32 g3_options;
|
||
|
||
fputs("\t /EndOfLine true\n", fd);
|
||
fputs("\t /EndOfBlock false\n", fd);
|
||
if (!TIFFGetField(tif, TIFFTAG_GROUP3OPTIONS,
|
||
&g3_options))
|
||
g3_options = 0;
|
||
if (g3_options & GROUP3OPT_2DENCODING)
|
||
fprintf(fd, "\t /K %s\n", im_h);
|
||
if (g3_options & GROUP3OPT_UNCOMPRESSED)
|
||
fputs("\t /Uncompressed true\n", fd);
|
||
if (g3_options & GROUP3OPT_FILLBITS)
|
||
fputs("\t /EncodedByteAlign true\n", fd);
|
||
}
|
||
if (compression == COMPRESSION_CCITTFAX4) {
|
||
uint32 g4_options;
|
||
|
||
fputs("\t /K -1\n", fd);
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_GROUP4OPTIONS,
|
||
&g4_options);
|
||
if (g4_options & GROUP4OPT_UNCOMPRESSED)
|
||
fputs("\t /Uncompressed true\n", fd);
|
||
}
|
||
if (!(tile_width == w && w == 1728U))
|
||
fprintf(fd, "\t /Columns %lu\n",
|
||
(unsigned long) tile_width);
|
||
fprintf(fd, "\t /Rows %s\n", im_h);
|
||
if (compression == COMPRESSION_CCITTRLE ||
|
||
compression == COMPRESSION_CCITTRLEW) {
|
||
fputs("\t /EncodedByteAlign true\n", fd);
|
||
fputs("\t /EndOfBlock false\n", fd);
|
||
}
|
||
if (photometric == PHOTOMETRIC_MINISBLACK)
|
||
fputs("\t /BlackIs1 true\n", fd);
|
||
fprintf(fd, "\t>> /CCITTFaxDecode filter");
|
||
break;
|
||
case COMPRESSION_LZW: /* 5: Lempel-Ziv & Welch */
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor);
|
||
if (predictor == 2) {
|
||
fputs("\n\t<<\n", fd);
|
||
fprintf(fd, "\t /Predictor %u\n", predictor);
|
||
fprintf(fd, "\t /Columns %lu\n",
|
||
(unsigned long) tile_width);
|
||
fprintf(fd, "\t /Colors %u\n", samplesperpixel);
|
||
fprintf(fd, "\t /BitsPerComponent %u\n",
|
||
bitspersample);
|
||
fputs("\t>>", fd);
|
||
}
|
||
fputs(" /LZWDecode filter", fd);
|
||
break;
|
||
case COMPRESSION_PACKBITS: /* 32773: Macintosh RLE */
|
||
fputs(" /RunLengthDecode filter", fd);
|
||
use_rawdata = TRUE;
|
||
break;
|
||
case COMPRESSION_OJPEG: /* 6: !6.0 JPEG */
|
||
case COMPRESSION_JPEG: /* 7: %JPEG DCT compression */
|
||
#ifdef notdef
|
||
/*
|
||
* Code not tested yet
|
||
*/
|
||
fputs(" /DCTDecode filter", fd);
|
||
use_rawdata = TRUE;
|
||
#else
|
||
use_rawdata = FALSE;
|
||
#endif
|
||
break;
|
||
case COMPRESSION_NEXT: /* 32766: NeXT 2-bit RLE */
|
||
case COMPRESSION_THUNDERSCAN: /* 32809: ThunderScan RLE */
|
||
case COMPRESSION_PIXARFILM: /* 32908: Pixar companded 10bit LZW */
|
||
case COMPRESSION_DEFLATE: /* 32946: Deflate compression */
|
||
case COMPRESSION_JBIG: /* 34661: ISO JBIG */
|
||
use_rawdata = FALSE;
|
||
break;
|
||
case COMPRESSION_SGILOG: /* 34676: SGI LogL or LogLuv */
|
||
case COMPRESSION_SGILOG24: /* 34677: SGI 24-bit LogLuv */
|
||
use_rawdata = FALSE;
|
||
break;
|
||
default:
|
||
/*
|
||
* ERROR...
|
||
*/
|
||
use_rawdata = FALSE;
|
||
break;
|
||
}
|
||
if (planarconfiguration == PLANARCONFIG_SEPARATE &&
|
||
samplesperpixel > 1) {
|
||
uint16 i;
|
||
|
||
/*
|
||
* NOTE: This code does not work yet...
|
||
*/
|
||
for (i = 1; i < samplesperpixel; i++)
|
||
fputs(" dup", fd);
|
||
fputs(" ]", fd);
|
||
}
|
||
|
||
fprintf( fd, "\n >> %s\n", imageOp );
|
||
if (ascii85)
|
||
fputs(" im_stream status { im_stream flushfile } if\n", fd);
|
||
if (repeat_count > 1) {
|
||
if (tile_width < w) {
|
||
fprintf(fd, " /im_x im_x %lu add def\n",
|
||
(unsigned long) tile_width);
|
||
if (tile_height < h) {
|
||
fprintf(fd, " im_x %lu ge {\n",
|
||
(unsigned long) w);
|
||
fputs(" /im_x 0 def\n", fd);
|
||
fprintf(fd, " /im_y im_y %lu add def\n",
|
||
(unsigned long) tile_height);
|
||
fputs(" } if\n", fd);
|
||
}
|
||
}
|
||
if (tile_height < h) {
|
||
if (tile_width >= w) {
|
||
fprintf(fd, " /im_y im_y %lu add def\n",
|
||
(unsigned long) tile_height);
|
||
if (!TIFFIsTiled(tif)) {
|
||
fprintf(fd, " /im_h %lu im_y sub",
|
||
(unsigned long) h);
|
||
fprintf(fd, " dup %lu gt { pop",
|
||
(unsigned long) tile_height);
|
||
fprintf(fd, " %lu } if def\n",
|
||
(unsigned long) tile_height);
|
||
}
|
||
}
|
||
}
|
||
fputs("} repeat\n", fd);
|
||
}
|
||
/*
|
||
* End of exec function
|
||
*/
|
||
fputs("}\n", fd);
|
||
|
||
return(use_rawdata);
|
||
}
|
||
|
||
int
|
||
PS_Lvl2page(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
uint16 fillorder;
|
||
int use_rawdata, tiled_image, breaklen;
|
||
uint32 chunk_no, num_chunks, *bc;
|
||
unsigned char *buf_data, *cp;
|
||
tsize_t chunk_size, byte_count;
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
int ascii85_l; /* Length, in bytes, of ascii85_p[] data */
|
||
uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */
|
||
#endif
|
||
|
||
PS_Lvl2colorspace(fd, tif);
|
||
use_rawdata = PS_Lvl2ImageDict(fd, tif, w, h);
|
||
|
||
fputs("%%BeginData:\n", fd);
|
||
fputs("exec\n", fd);
|
||
|
||
tiled_image = TIFFIsTiled(tif);
|
||
if (tiled_image) {
|
||
num_chunks = TIFFNumberOfTiles(tif);
|
||
TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc);
|
||
} else {
|
||
num_chunks = TIFFNumberOfStrips(tif);
|
||
TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc);
|
||
}
|
||
|
||
if (use_rawdata) {
|
||
chunk_size = bc[0];
|
||
for (chunk_no = 1; chunk_no < num_chunks; chunk_no++)
|
||
if (bc[chunk_no] > chunk_size)
|
||
chunk_size = bc[chunk_no];
|
||
} else {
|
||
if (tiled_image)
|
||
chunk_size = TIFFTileSize(tif);
|
||
else
|
||
chunk_size = TIFFStripSize(tif);
|
||
}
|
||
buf_data = (unsigned char *)_TIFFmalloc(chunk_size);
|
||
if (!buf_data) {
|
||
TIFFError(filename, "Can't alloc %u bytes for %s.",
|
||
chunk_size, tiled_image ? "tiles" : "strips");
|
||
return(FALSE);
|
||
}
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
if ( ascii85 ) {
|
||
/*
|
||
* Allocate a buffer to hold the ASCII85 encoded data. Note
|
||
* that it is allocated with sufficient room to hold the
|
||
* encoded data (5*chunk_size/4) plus the EOD marker (+8)
|
||
* and formatting line breaks. The line breaks are more
|
||
* than taken care of by using 6*chunk_size/4 rather than
|
||
* 5*chunk_size/4.
|
||
*/
|
||
|
||
ascii85_p = _TIFFmalloc( (chunk_size+(chunk_size/2)) + 8 );
|
||
|
||
if ( !ascii85_p ) {
|
||
_TIFFfree( buf_data );
|
||
|
||
TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." );
|
||
return ( FALSE );
|
||
}
|
||
}
|
||
#endif
|
||
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder);
|
||
for (chunk_no = 0; chunk_no < num_chunks; chunk_no++) {
|
||
if (ascii85)
|
||
Ascii85Init();
|
||
else
|
||
breaklen = 36;
|
||
if (use_rawdata) {
|
||
if (tiled_image)
|
||
byte_count = TIFFReadRawTile(tif, chunk_no,
|
||
buf_data, chunk_size);
|
||
else
|
||
byte_count = TIFFReadRawStrip(tif, chunk_no,
|
||
buf_data, chunk_size);
|
||
if (fillorder == FILLORDER_LSB2MSB)
|
||
TIFFReverseBits(buf_data, byte_count);
|
||
} else {
|
||
if (tiled_image)
|
||
byte_count = TIFFReadEncodedTile(tif,
|
||
chunk_no, buf_data,
|
||
chunk_size);
|
||
else
|
||
byte_count = TIFFReadEncodedStrip(tif,
|
||
chunk_no, buf_data,
|
||
chunk_size);
|
||
}
|
||
if (byte_count < 0) {
|
||
TIFFError(filename, "Can't read %s %d.",
|
||
tiled_image ? "tile" : "strip", chunk_no);
|
||
if (ascii85)
|
||
Ascii85Put('\0', fd);
|
||
}
|
||
|
||
if (ascii85) {
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
ascii85_l = Ascii85EncodeBlock(ascii85_p, 1, buf_data, byte_count );
|
||
|
||
if ( ascii85_l > 0 )
|
||
fwrite( ascii85_p, ascii85_l, 1, fd );
|
||
#else
|
||
for (cp = buf_data; byte_count > 0; byte_count--)
|
||
Ascii85Put(*cp++, fd);
|
||
#endif
|
||
}
|
||
else
|
||
{
|
||
for (cp = buf_data; byte_count > 0; byte_count--) {
|
||
putc(hex[((*cp)>>4)&0xf], fd);
|
||
putc(hex[(*cp)&0xf], fd);
|
||
cp++;
|
||
|
||
if (--breaklen <= 0) {
|
||
putc('\n', fd);
|
||
breaklen = 36;
|
||
}
|
||
}
|
||
}
|
||
|
||
if ( !ascii85 ) {
|
||
if ( level2 )
|
||
putc( '>', fd );
|
||
putc('\n', fd);
|
||
}
|
||
#if !defined( EXP_ASCII85ENCODER )
|
||
else
|
||
Ascii85Flush(fd);
|
||
#endif
|
||
}
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
if ( ascii85_p )
|
||
_TIFFfree( ascii85_p );
|
||
#endif
|
||
|
||
_TIFFfree(buf_data);
|
||
fputs("%%EndData\n", fd);
|
||
return(TRUE);
|
||
}
|
||
|
||
void
|
||
PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
char * imageOp = "image";
|
||
|
||
if ( useImagemask && (bitspersample == 1) )
|
||
imageOp = "imagemask";
|
||
|
||
if (level2 && PS_Lvl2page(fd, tif, w, h))
|
||
return;
|
||
ps_bytesperrow = tf_bytesperrow;
|
||
switch (photometric) {
|
||
case PHOTOMETRIC_RGB:
|
||
if (planarconfiguration == PLANARCONFIG_CONTIG) {
|
||
fprintf(fd, "%s", RGBcolorimage);
|
||
PSColorContigPreamble(fd, w, h, 3);
|
||
PSDataColorContig(fd, tif, w, h, 3);
|
||
} else {
|
||
PSColorSeparatePreamble(fd, w, h, 3);
|
||
PSDataColorSeparate(fd, tif, w, h, 3);
|
||
}
|
||
break;
|
||
case PHOTOMETRIC_SEPARATED:
|
||
/* XXX should emit CMYKcolorimage */
|
||
if (planarconfiguration == PLANARCONFIG_CONTIG) {
|
||
PSColorContigPreamble(fd, w, h, 4);
|
||
PSDataColorContig(fd, tif, w, h, 4);
|
||
} else {
|
||
PSColorSeparatePreamble(fd, w, h, 4);
|
||
PSDataColorSeparate(fd, tif, w, h, 4);
|
||
}
|
||
break;
|
||
case PHOTOMETRIC_PALETTE:
|
||
fprintf(fd, "%s", RGBcolorimage);
|
||
PhotoshopBanner(fd, w, h, 1, 3, "false 3 colorimage");
|
||
fprintf(fd, "/scanLine %ld string def\n",
|
||
(long) ps_bytesperrow);
|
||
fprintf(fd, "%lu %lu 8\n",
|
||
(unsigned long) w, (unsigned long) h);
|
||
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n",
|
||
(unsigned long) w, (unsigned long) h, (unsigned long) h);
|
||
fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n");
|
||
fprintf(fd, "false 3 colorimage\n");
|
||
PSDataPalette(fd, tif, w, h);
|
||
break;
|
||
case PHOTOMETRIC_MINISBLACK:
|
||
case PHOTOMETRIC_MINISWHITE:
|
||
PhotoshopBanner(fd, w, h, 1, 1, imageOp);
|
||
fprintf(fd, "/scanLine %ld string def\n",
|
||
(long) ps_bytesperrow);
|
||
fprintf(fd, "%lu %lu %d\n",
|
||
(unsigned long) w, (unsigned long) h, bitspersample);
|
||
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n",
|
||
(unsigned long) w, (unsigned long) h, (unsigned long) h);
|
||
fprintf(fd,
|
||
"{currentfile scanLine readhexstring pop} bind\n");
|
||
fprintf(fd, "%s\n", imageOp);
|
||
PSDataBW(fd, tif, w, h);
|
||
break;
|
||
}
|
||
putc('\n', fd);
|
||
}
|
||
|
||
void
|
||
PSColorContigPreamble(FILE* fd, uint32 w, uint32 h, int nc)
|
||
{
|
||
ps_bytesperrow = nc * (tf_bytesperrow / samplesperpixel);
|
||
PhotoshopBanner(fd, w, h, 1, nc, "false %d colorimage");
|
||
fprintf(fd, "/line %ld string def\n", (long) ps_bytesperrow);
|
||
fprintf(fd, "%lu %lu %d\n",
|
||
(unsigned long) w, (unsigned long) h, bitspersample);
|
||
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n",
|
||
(unsigned long) w, (unsigned long) h, (unsigned long) h);
|
||
fprintf(fd, "{currentfile line readhexstring pop} bind\n");
|
||
fprintf(fd, "false %d colorimage\n", nc);
|
||
}
|
||
|
||
void
|
||
PSColorSeparatePreamble(FILE* fd, uint32 w, uint32 h, int nc)
|
||
{
|
||
int i;
|
||
|
||
PhotoshopBanner(fd, w, h, ps_bytesperrow, nc, "true %d colorimage");
|
||
for (i = 0; i < nc; i++)
|
||
fprintf(fd, "/line%d %ld string def\n",
|
||
i, (long) ps_bytesperrow);
|
||
fprintf(fd, "%lu %lu %d\n",
|
||
(unsigned long) w, (unsigned long) h, bitspersample);
|
||
fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n",
|
||
(unsigned long) w, (unsigned long) h, (unsigned long) h);
|
||
for (i = 0; i < nc; i++)
|
||
fprintf(fd, "{currentfile line%d readhexstring pop}bind\n", i);
|
||
fprintf(fd, "true %d colorimage\n", nc);
|
||
}
|
||
|
||
#define MAXLINE 36
|
||
#define DOBREAK(len, howmany, fd) \
|
||
if (((len) -= (howmany)) <= 0) { \
|
||
putc('\n', fd); \
|
||
(len) = MAXLINE-(howmany); \
|
||
}
|
||
#define PUTHEX(c,fd) putc(hex[((c)>>4)&0xf],fd); putc(hex[(c)&0xf],fd)
|
||
|
||
void
|
||
PSDataColorContig(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc)
|
||
{
|
||
uint32 row;
|
||
int breaklen = MAXLINE, cc, es = samplesperpixel - nc;
|
||
unsigned char *tf_buf;
|
||
unsigned char *cp, c;
|
||
|
||
(void) w;
|
||
tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow);
|
||
if (tf_buf == NULL) {
|
||
TIFFError(filename, "No space for scanline buffer");
|
||
return;
|
||
}
|
||
for (row = 0; row < h; row++) {
|
||
if (TIFFReadScanline(tif, tf_buf, row, 0) < 0)
|
||
break;
|
||
cp = tf_buf;
|
||
if (alpha) {
|
||
int adjust;
|
||
cc = 0;
|
||
for (; cc < tf_bytesperrow; cc += samplesperpixel) {
|
||
DOBREAK(breaklen, nc, fd);
|
||
/*
|
||
* For images with alpha, matte against
|
||
* a white background; i.e.
|
||
* Cback * (1 - Aimage)
|
||
* where Cback = 1.
|
||
*/
|
||
adjust = 255 - cp[nc];
|
||
switch (nc) {
|
||
case 4: c = *cp++ + adjust; PUTHEX(c,fd);
|
||
case 3: c = *cp++ + adjust; PUTHEX(c,fd);
|
||
case 2: c = *cp++ + adjust; PUTHEX(c,fd);
|
||
case 1: c = *cp++ + adjust; PUTHEX(c,fd);
|
||
}
|
||
cp += es;
|
||
}
|
||
} else {
|
||
cc = 0;
|
||
for (; cc < tf_bytesperrow; cc += samplesperpixel) {
|
||
DOBREAK(breaklen, nc, fd);
|
||
switch (nc) {
|
||
case 4: c = *cp++; PUTHEX(c,fd);
|
||
case 3: c = *cp++; PUTHEX(c,fd);
|
||
case 2: c = *cp++; PUTHEX(c,fd);
|
||
case 1: c = *cp++; PUTHEX(c,fd);
|
||
}
|
||
cp += es;
|
||
}
|
||
}
|
||
}
|
||
_TIFFfree((char *) tf_buf);
|
||
}
|
||
|
||
void
|
||
PSDataColorSeparate(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc)
|
||
{
|
||
uint32 row;
|
||
int breaklen = MAXLINE, cc, s, maxs;
|
||
unsigned char *tf_buf;
|
||
unsigned char *cp, c;
|
||
|
||
(void) w;
|
||
tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow);
|
||
if (tf_buf == NULL) {
|
||
TIFFError(filename, "No space for scanline buffer");
|
||
return;
|
||
}
|
||
maxs = (samplesperpixel > nc ? nc : samplesperpixel);
|
||
for (row = 0; row < h; row++) {
|
||
for (s = 0; s < maxs; s++) {
|
||
if (TIFFReadScanline(tif, tf_buf, row, s) < 0)
|
||
break;
|
||
for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) {
|
||
DOBREAK(breaklen, 1, fd);
|
||
c = *cp++;
|
||
PUTHEX(c,fd);
|
||
}
|
||
}
|
||
}
|
||
_TIFFfree((char *) tf_buf);
|
||
}
|
||
|
||
#define PUTRGBHEX(c,fd) \
|
||
PUTHEX(rmap[c],fd); PUTHEX(gmap[c],fd); PUTHEX(bmap[c],fd)
|
||
|
||
void
|
||
PSDataPalette(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
uint16 *rmap, *gmap, *bmap;
|
||
uint32 row;
|
||
int breaklen = MAXLINE, cc, nc;
|
||
unsigned char *tf_buf;
|
||
unsigned char *cp, c;
|
||
|
||
(void) w;
|
||
if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) {
|
||
TIFFError(filename, "Palette image w/o \"Colormap\" tag");
|
||
return;
|
||
}
|
||
switch (bitspersample) {
|
||
case 8: case 4: case 2: case 1:
|
||
break;
|
||
default:
|
||
TIFFError(filename, "Depth %d not supported", bitspersample);
|
||
return;
|
||
}
|
||
nc = 3 * (8 / bitspersample);
|
||
tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow);
|
||
if (tf_buf == NULL) {
|
||
TIFFError(filename, "No space for scanline buffer");
|
||
return;
|
||
}
|
||
if (checkcmap(tif, 1<<bitspersample, rmap, gmap, bmap) == 16) {
|
||
int i;
|
||
#define CVT(x) (((x) * 255) / ((1U<<16)-1))
|
||
for (i = (1<<bitspersample)-1; i >= 0; i--) {
|
||
rmap[i] = CVT(rmap[i]);
|
||
gmap[i] = CVT(gmap[i]);
|
||
bmap[i] = CVT(bmap[i]);
|
||
}
|
||
#undef CVT
|
||
}
|
||
for (row = 0; row < h; row++) {
|
||
if (TIFFReadScanline(tif, tf_buf, row, 0) < 0)
|
||
break;
|
||
for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) {
|
||
DOBREAK(breaklen, nc, fd);
|
||
switch (bitspersample) {
|
||
case 8:
|
||
c = *cp++; PUTRGBHEX(c, fd);
|
||
break;
|
||
case 4:
|
||
c = *cp++; PUTRGBHEX(c&0xf, fd);
|
||
c >>= 4; PUTRGBHEX(c, fd);
|
||
break;
|
||
case 2:
|
||
c = *cp++; PUTRGBHEX(c&0x3, fd);
|
||
c >>= 2; PUTRGBHEX(c&0x3, fd);
|
||
c >>= 2; PUTRGBHEX(c&0x3, fd);
|
||
c >>= 2; PUTRGBHEX(c, fd);
|
||
break;
|
||
case 1:
|
||
c = *cp++; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c&0x1, fd);
|
||
c >>= 1; PUTRGBHEX(c, fd);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
_TIFFfree((char *) tf_buf);
|
||
}
|
||
|
||
void
|
||
PSDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
int breaklen = MAXLINE;
|
||
unsigned char* tf_buf;
|
||
unsigned char* cp;
|
||
tsize_t stripsize = TIFFStripSize(tif);
|
||
tstrip_t s;
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
int ascii85_l; /* Length, in bytes, of ascii85_p[] data */
|
||
uint8 *ascii85_p = 0; /* Holds ASCII85 encoded data */
|
||
#endif
|
||
|
||
(void) w; (void) h;
|
||
tf_buf = (unsigned char *) _TIFFmalloc(stripsize);
|
||
if (tf_buf == NULL) {
|
||
TIFFError(filename, "No space for scanline buffer");
|
||
return;
|
||
}
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
if ( ascii85 ) {
|
||
/*
|
||
* Allocate a buffer to hold the ASCII85 encoded data. Note
|
||
* that it is allocated with sufficient room to hold the
|
||
* encoded data (5*stripsize/4) plus the EOD marker (+8)
|
||
* and formatting line breaks. The line breaks are more
|
||
* than taken care of by using 6*stripsize/4 rather than
|
||
* 5*stripsize/4.
|
||
*/
|
||
|
||
ascii85_p = _TIFFmalloc( (stripsize+(stripsize/2)) + 8 );
|
||
|
||
if ( !ascii85_p ) {
|
||
_TIFFfree( tf_buf );
|
||
|
||
TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." );
|
||
return;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
if (ascii85)
|
||
Ascii85Init();
|
||
|
||
for (s = 0; s < TIFFNumberOfStrips(tif); s++) {
|
||
int cc = TIFFReadEncodedStrip(tif, s, tf_buf, stripsize);
|
||
if (cc < 0) {
|
||
TIFFError(filename, "Can't read strip");
|
||
break;
|
||
}
|
||
cp = tf_buf;
|
||
if (photometric == PHOTOMETRIC_MINISWHITE) {
|
||
for (cp += cc; --cp >= tf_buf;)
|
||
*cp = ~*cp;
|
||
cp++;
|
||
}
|
||
if (ascii85) {
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, cp, cc );
|
||
|
||
if ( ascii85_l > 0 )
|
||
fwrite( ascii85_p, ascii85_l, 1, fd );
|
||
#else
|
||
while (cc-- > 0)
|
||
Ascii85Put(*cp++, fd);
|
||
#endif /* EXP_ASCII85_ENCODER */
|
||
} else {
|
||
while (cc-- > 0) {
|
||
unsigned char c = *cp++;
|
||
DOBREAK(breaklen, 1, fd);
|
||
PUTHEX(c, fd);
|
||
}
|
||
}
|
||
}
|
||
|
||
if ( !ascii85 )
|
||
{
|
||
if ( level2 )
|
||
fputs(">\n", fd);
|
||
}
|
||
#if !defined( EXP_ASCII85ENCODER )
|
||
else
|
||
Ascii85Flush(fd);
|
||
#else
|
||
if ( ascii85_p )
|
||
_TIFFfree( ascii85_p );
|
||
#endif
|
||
|
||
_TIFFfree(tf_buf);
|
||
}
|
||
|
||
void
|
||
PSRawDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h)
|
||
{
|
||
uint32 *bc;
|
||
uint32 bufsize;
|
||
int breaklen = MAXLINE, cc;
|
||
uint16 fillorder;
|
||
unsigned char *tf_buf;
|
||
unsigned char *cp, c;
|
||
tstrip_t s;
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
int ascii85_l; /* Length, in bytes, of ascii85_p[] data */
|
||
uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */
|
||
#endif
|
||
|
||
(void) w; (void) h;
|
||
TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder);
|
||
TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc);
|
||
|
||
/*
|
||
* Find largest strip:
|
||
*/
|
||
|
||
bufsize = bc[0];
|
||
|
||
for ( s = 0; ++s < tf_numberstrips; ) {
|
||
if ( bc[s] > bufsize )
|
||
bufsize = bc[s];
|
||
}
|
||
|
||
tf_buf = (unsigned char*) _TIFFmalloc(bufsize);
|
||
if (tf_buf == NULL) {
|
||
TIFFError(filename, "No space for strip buffer");
|
||
return;
|
||
}
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
if ( ascii85 ) {
|
||
/*
|
||
* Allocate a buffer to hold the ASCII85 encoded data. Note
|
||
* that it is allocated with sufficient room to hold the
|
||
* encoded data (5*bufsize/4) plus the EOD marker (+8)
|
||
* and formatting line breaks. The line breaks are more
|
||
* than taken care of by using 6*bufsize/4 rather than
|
||
* 5*bufsize/4.
|
||
*/
|
||
|
||
ascii85_p = _TIFFmalloc( (bufsize+(bufsize/2)) + 8 );
|
||
|
||
if ( !ascii85_p ) {
|
||
_TIFFfree( tf_buf );
|
||
|
||
TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." );
|
||
return;
|
||
}
|
||
}
|
||
#endif
|
||
|
||
for (s = 0; s < tf_numberstrips; s++) {
|
||
cc = TIFFReadRawStrip(tif, s, tf_buf, bc[s]);
|
||
if (cc < 0) {
|
||
TIFFError(filename, "Can't read strip");
|
||
break;
|
||
}
|
||
if (fillorder == FILLORDER_LSB2MSB)
|
||
TIFFReverseBits(tf_buf, cc);
|
||
if (!ascii85) {
|
||
for (cp = tf_buf; cc > 0; cc--) {
|
||
DOBREAK(breaklen, 1, fd);
|
||
c = *cp++;
|
||
PUTHEX(c, fd);
|
||
}
|
||
fputs(">\n", fd);
|
||
breaklen = MAXLINE;
|
||
} else {
|
||
Ascii85Init();
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, tf_buf, cc );
|
||
|
||
if ( ascii85_l > 0 )
|
||
fwrite( ascii85_p, ascii85_l, 1, fd );
|
||
#else
|
||
for (cp = tf_buf; cc > 0; cc--)
|
||
Ascii85Put(*cp++, fd);
|
||
Ascii85Flush(fd);
|
||
#endif /* EXP_ASCII85ENCODER */
|
||
}
|
||
}
|
||
_TIFFfree((char *) tf_buf);
|
||
|
||
#if defined( EXP_ASCII85ENCODER )
|
||
if ( ascii85_p )
|
||
_TIFFfree( ascii85_p );
|
||
#endif
|
||
}
|
||
|
||
void
|
||
Ascii85Init(void)
|
||
{
|
||
ascii85breaklen = 2*MAXLINE;
|
||
ascii85count = 0;
|
||
}
|
||
|
||
static char*
|
||
Ascii85Encode(unsigned char* raw)
|
||
{
|
||
static char encoded[6];
|
||
uint32 word;
|
||
|
||
word = (((raw[0]<<8)+raw[1])<<16) + (raw[2]<<8) + raw[3];
|
||
if (word != 0L) {
|
||
uint32 q;
|
||
uint16 w1;
|
||
|
||
q = word / (85L*85*85*85); /* actually only a byte */
|
||
encoded[0] = q + '!';
|
||
|
||
word -= q * (85L*85*85*85); q = word / (85L*85*85);
|
||
encoded[1] = q + '!';
|
||
|
||
word -= q * (85L*85*85); q = word / (85*85);
|
||
encoded[2] = q + '!';
|
||
|
||
w1 = (uint16) (word - q*(85L*85));
|
||
encoded[3] = (w1 / 85) + '!';
|
||
encoded[4] = (w1 % 85) + '!';
|
||
encoded[5] = '\0';
|
||
} else
|
||
encoded[0] = 'z', encoded[1] = '\0';
|
||
return (encoded);
|
||
}
|
||
|
||
void
|
||
Ascii85Put(unsigned char code, FILE* fd)
|
||
{
|
||
ascii85buf[ascii85count++] = code;
|
||
if (ascii85count >= 4) {
|
||
unsigned char* p;
|
||
int n;
|
||
|
||
for (n = ascii85count, p = ascii85buf; n >= 4; n -= 4, p += 4) {
|
||
char* cp;
|
||
for (cp = Ascii85Encode(p); *cp; cp++) {
|
||
putc(*cp, fd);
|
||
if (--ascii85breaklen == 0) {
|
||
putc('\n', fd);
|
||
ascii85breaklen = 2*MAXLINE;
|
||
}
|
||
}
|
||
}
|
||
_TIFFmemcpy(ascii85buf, p, n);
|
||
ascii85count = n;
|
||
}
|
||
}
|
||
|
||
void
|
||
Ascii85Flush(FILE* fd)
|
||
{
|
||
if (ascii85count > 0) {
|
||
char* res;
|
||
_TIFFmemset(&ascii85buf[ascii85count], 0, 3);
|
||
res = Ascii85Encode(ascii85buf);
|
||
fwrite(res[0] == 'z' ? "!!!!" : res, ascii85count + 1, 1, fd);
|
||
}
|
||
fputs("~>\n", fd);
|
||
}
|
||
#if defined( EXP_ASCII85ENCODER)
|
||
|
||
#define A85BREAKCNTR ascii85breaklen
|
||
#define A85BREAKLEN (2*MAXLINE)
|
||
|
||
/*****************************************************************************
|
||
*
|
||
* Name: Ascii85EncodeBlock( ascii85_p, f_eod, raw_p, raw_l )
|
||
*
|
||
* Description: This routine will encode the raw data in the buffer described
|
||
* by raw_p and raw_l into ASCII85 format and store the encoding
|
||
* in the buffer given by ascii85_p.
|
||
*
|
||
* Parameters: ascii85_p - A buffer supplied by the caller which will
|
||
* contain the encoded ASCII85 data.
|
||
* f_eod - Flag: Nz means to end the encoded buffer with
|
||
* an End-Of-Data marker.
|
||
* raw_p - Pointer to the buffer of data to be encoded
|
||
* raw_l - Number of bytes in raw_p[] to be encoded
|
||
*
|
||
* Returns: (int) < 0 Error, see errno
|
||
* >= 0 Number of bytes written to ascii85_p[].
|
||
*
|
||
* Notes: An external variable given by A85BREAKCNTR is used to
|
||
* determine when to insert newline characters into the
|
||
* encoded data. As each byte is placed into ascii85_p this
|
||
* external is decremented. If the variable is decrement to
|
||
* or past zero then a newline is inserted into ascii85_p
|
||
* and the A85BREAKCNTR is then reset to A85BREAKLEN.
|
||
* Note: for efficiency reasons the A85BREAKCNTR variable
|
||
* is not actually checked on *every* character
|
||
* placed into ascii85_p but often only for every
|
||
* 5 characters.
|
||
*
|
||
* THE CALLER IS RESPONSIBLE FOR ENSURING THAT ASCII85_P[] IS
|
||
* SUFFICIENTLY LARGE TO THE ENCODED DATA!
|
||
* You will need at least 5 * (raw_l/4) bytes plus space for
|
||
* newline characters and space for an EOD marker (if
|
||
* requested). A safe calculation is to use 6*(raw_l/4) + 8
|
||
* to size ascii85_p.
|
||
*
|
||
*****************************************************************************/
|
||
|
||
int Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, int raw_l )
|
||
|
||
{
|
||
char ascii85[5]; /* Encoded 5 tuple */
|
||
int ascii85_l; /* Number of bytes written to ascii85_p[] */
|
||
int rc; /* Return code */
|
||
uint32 val32; /* Unencoded 4 tuple */
|
||
|
||
ascii85_l = 0; /* Nothing written yet */
|
||
|
||
if ( raw_p )
|
||
{
|
||
--raw_p; /* Prepare for pre-increment fetches */
|
||
|
||
for ( ; raw_l > 3; raw_l -= 4 )
|
||
{
|
||
val32 = *(++raw_p) << 24;
|
||
val32 += *(++raw_p) << 16;
|
||
val32 += *(++raw_p) << 8;
|
||
val32 += *(++raw_p);
|
||
|
||
if ( val32 == 0 ) /* Special case */
|
||
{
|
||
ascii85_p[ascii85_l] = 'z';
|
||
rc = 1;
|
||
}
|
||
|
||
else
|
||
{
|
||
ascii85[4] = (val32 % 85) + 33;
|
||
val32 /= 85;
|
||
|
||
ascii85[3] = (val32 % 85) + 33;
|
||
val32 /= 85;
|
||
|
||
ascii85[2] = (val32 % 85) + 33;
|
||
val32 /= 85;
|
||
|
||
ascii85[1] = (val32 % 85) + 33;
|
||
ascii85[0] = (val32 / 85) + 33;
|
||
|
||
_TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, sizeof(ascii85) );
|
||
rc = sizeof(ascii85);
|
||
}
|
||
|
||
ascii85_l += rc;
|
||
|
||
if ( (A85BREAKCNTR -= rc) <= 0 )
|
||
{
|
||
ascii85_p[ascii85_l] = '\n';
|
||
++ascii85_l;
|
||
A85BREAKCNTR = A85BREAKLEN;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Output any straggler bytes:
|
||
*/
|
||
|
||
if ( raw_l )
|
||
{
|
||
int len; /* Output this many bytes */
|
||
|
||
len = raw_l + 1;
|
||
val32 = *++raw_p << 24; /* Prime the pump */
|
||
|
||
if ( --raw_l ) val32 += *(++raw_p) << 16;
|
||
if ( --raw_l ) val32 += *(++raw_p) << 8;
|
||
|
||
val32 /= 85;
|
||
|
||
ascii85[3] = (val32 % 85) + 33;;
|
||
val32 /= 85;
|
||
|
||
ascii85[2] = (val32 % 85) + 33;;
|
||
val32 /= 85;
|
||
|
||
ascii85[1] = (val32 % 85) + 33;;
|
||
ascii85[0] = (val32 / 85) + 33;;
|
||
|
||
_TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, len );
|
||
ascii85_l += len;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* If requested add an ASCII85 End Of Data marker:
|
||
*/
|
||
|
||
if ( f_eod )
|
||
{
|
||
ascii85_p[ascii85_l++] = '~';
|
||
ascii85_p[ascii85_l++] = '>';
|
||
ascii85_p[ascii85_l++] = '\n';
|
||
}
|
||
|
||
return ( ascii85_l );
|
||
|
||
} /* Ascii85EncodeBlock() */
|
||
|
||
#endif /* EXP_ASCII85ENCODER */
|
||
|
||
|
||
char* stuff[] = {
|
||
"usage: tiff2ps [options] input.tif ...",
|
||
"where options are:",
|
||
" -1 generate PostScript Level I (default)",
|
||
" -2 generate PostScript Level II",
|
||
" -8 disable use of ASCII85 encoding with PostScript Level II",
|
||
" -a convert all directories in file (default is first)",
|
||
" -n override resolution units as inches",
|
||
" -c override resolution units as centimeters",
|
||
" -d # convert directory number #",
|
||
" -D enable duplex printing (two pages per sheet of paper)",
|
||
" -e generate Encapsulated PostScript (EPS)",
|
||
" -h # assume printed page height is # inches (default 11)",
|
||
" -w # assume printed page width is # inches (default 8.5)",
|
||
" -H # split image if height is more than # inches",
|
||
" -L # overLap split images by # inches",
|
||
" -i # enable/disable (Nz/0) pixel interpolation (default: enable)",
|
||
" -m use \"imagemask\" operator instead of \"image\"",
|
||
" -o # convert directory at file offset #",
|
||
" -O file write PostScript to file instead of standard output",
|
||
" -p generate regular PostScript",
|
||
" -s generate PostScript for a single image",
|
||
" -T print pages for top edge binding",
|
||
" -z enable printing in the deadzone (only for PostScript Level II)",
|
||
NULL
|
||
};
|
||
|
||
static void
|
||
usage(int code)
|
||
{
|
||
char buf[BUFSIZ];
|
||
int i;
|
||
|
||
setbuf(stderr, buf);
|
||
for (i = 0; stuff[i] != NULL; i++)
|
||
fprintf(stderr, "%s\n", stuff[i]);
|
||
exit(code);
|
||
}
|