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libtiff/tools/tiff2ps.c
Mike Welles 0ef31e1f62 Initial revision
1999-07-27 21:50:26 +00:00

1409 lines
36 KiB
C
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/* $Header: /cvs/maptools/cvsroot/libtiff/tools/tiff2ps.c,v 1.1 1999-07-27 21:50:28 mike 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.
*/
#include <stdio.h>
#include <stdlib.h> /* for atof */
#include <math.h>
#include <time.h>
#include "tiffio.h"
/*
* NB: this code assumes uint32 works with printf's %l[ud].
*/
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
int ascii85 = FALSE; /* use ASCII85 encoding */
int interpolate = TRUE; /* interpolate level2 image */
int level2 = FALSE; /* generate PostScript level 2 */
int printAll = FALSE; /* print all images in file */
int generateEPSF = TRUE; /* generate Encapsulated PostScript */
int PSduplex = FALSE; /* enable duplex printing */
int PStumble = FALSE; /* enable top edge binding */
int PSavoiddeadzone = TRUE; /* enable avoiding printer deadzone */
char *filename; /* input filename */
/*
* ASCII85 Encoding Support.
*/
unsigned char ascii85buf[10];
int ascii85count;
int ascii85breaklen;
int TIFF2PS(FILE*, TIFF*, float, float);
void PSpage(FILE*, TIFF*, uint32, uint32);
void PSColorContigPreamble(FILE*, uint32, uint32, int);
void PSColorSeparatePreamble(FILE*, uint32, uint32, int);
void PSDataColorContig(FILE*, TIFF*, uint32, uint32, int);
void PSDataColorSeparate(FILE*, TIFF*, uint32, uint32, int);
void PSDataPalette(FILE*, TIFF*, uint32, uint32);
void PSDataBW(FILE*, TIFF*, uint32, uint32);
void PSRawDataBW(FILE*, TIFF*, uint32, uint32);
void Ascii85Init(void);
void Ascii85Put(unsigned char code, FILE* fd);
void Ascii85Flush(FILE* fd);
void PSHead(FILE*, TIFF*, uint32, uint32, float, float, float, float);
void PSTail(FILE*, int);
static void usage(int);
int
main(int argc, char* argv[])
{
int dirnum = -1, c, np = 0;
float pageWidth = 0;
float pageHeight = 0;
uint32 diroff = 0;
extern char *optarg;
extern int optind;
FILE* output = stdout;
while ((c = getopt(argc, argv, "h:w:d:o:O:aezps128DT")) != -1)
switch (c) {
case 'd':
dirnum = atoi(optarg);
break;
case 'D':
PSduplex = TRUE;
break;
case 'T':
PStumble = TRUE;
break;
case 'e':
generateEPSF = TRUE;
break;
case 'h':
pageHeight = atof(optarg);
break;
case 'o':
diroff = (uint32) strtoul(optarg, NULL, 0);
break;
case 'O': /* XXX too bad -o is already taken */
output = fopen(optarg, "w");
if (output == NULL) {
fprintf(stderr,
"%s: %s: Cannot open output file.\n",
argv[0], optarg);
exit(-2);
}
break;
case 'a':
printAll = TRUE;
/* fall thru... */
case 'p':
generateEPSF = FALSE;
break;
case 's':
printAll = FALSE;
break;
case 'w':
pageWidth = atof(optarg);
break;
case 'z':
PSavoiddeadzone = FALSE;
break;
case '1':
level2 = FALSE;
ascii85 = FALSE;
break;
case '2':
level2 = TRUE;
ascii85 = TRUE; /* default to yes */
break;
case '8':
ascii85 = FALSE;
break;
case '?':
usage(-1);
}
for (; argc - optind > 0; optind++) {
TIFF* tif = TIFFOpen(filename = argv[optind], "r");
if (tif != NULL) {
if (dirnum != -1 && !TIFFSetDirectory(tif, dirnum))
return (-1);
else if (diroff != 0 &&
!TIFFSetSubDirectory(tif, diroff))
return (-1);
np = TIFF2PS(output, tif, pageWidth, pageHeight);
TIFFClose(tif);
}
}
if (np)
PSTail(output, np);
else
usage(-1);
if (output != stdout)
fclose(output);
return (0);
}
static uint16 samplesperpixel;
static uint16 bitspersample;
static uint16 planarconfiguration;
static uint16 photometric;
static uint16 compression;
static uint16 extrasamples;
static int alpha;
static int
checkImage(TIFF* tif)
{
switch (photometric) {
case PHOTOMETRIC_YCBCR:
if (compression == COMPRESSION_JPEG &&
planarconfiguration == PLANARCONFIG_CONTIG) {
/* can rely on libjpeg to convert to RGB */
TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE,
JPEGCOLORMODE_RGB);
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");
}
static void
setupPageState(TIFF* tif, uint32* pw, uint32* ph, float* pprw, float* pprh)
{
uint16 res_unit;
float xres, yres;
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, pw);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, ph);
TIFFGetFieldDefaulted(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit);
/*
* Calculate printable area.
*/
if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres))
xres = PS_UNIT_SIZE;
if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres))
yres = PS_UNIT_SIZE;
switch (res_unit) {
case RESUNIT_CENTIMETER:
xres *= 2.54, yres *= 2.54;
break;
case RESUNIT_NONE:
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";
/* 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;
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;
}
}
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) {
/* 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;
/*
* 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",
samplesperpixel > 2 ? "RGB" : "Gray");
fputs(" setcolorspace\n", fd);
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];
(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);
fprintf(fd, " /Height %lu\n", (unsigned long) tile_height);
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);
}
fputs("\n >> image\n", fd);
if (ascii85)
fputs(" im_stream flushfile\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;
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);
}
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);
}
for (cp = buf_data; byte_count > 0; byte_count--) {
if (ascii85)
Ascii85Put(*cp++, fd);
else {
if (--breaklen <= 0) {
putc('\n', fd);
breaklen = 36;
}
putc(hex[((*cp)>>4)&0xf], fd);
putc(hex[(*cp)&0xf], fd);
cp++;
}
}
if (ascii85)
Ascii85Flush(fd);
else
putc('\n', fd);
}
_TIFFfree(buf_data);
fputs("%%EndData\n", fd);
return(TRUE);
}
void
PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h)
{
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, "image");
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, "image\n");
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;
(void) w; (void) h;
tf_buf = (unsigned char *) _TIFFmalloc(stripsize);
if (tf_buf == NULL) {
TIFFError(filename, "No space for scanline buffer");
return;
}
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) {
while (cc-- > 0)
Ascii85Put(*cp++, fd);
} else {
while (cc-- > 0) {
unsigned char c = *cp++;
DOBREAK(breaklen, 1, fd);
PUTHEX(c, fd);
}
}
}
if (ascii85)
Ascii85Flush(fd);
else if (level2)
fputs(">\n", fd);
_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;
(void) w; (void) h;
TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder);
TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc);
bufsize = bc[0];
tf_buf = (unsigned char*) _TIFFmalloc(bufsize);
if (tf_buf == NULL) {
TIFFError(filename, "No space for strip buffer");
return;
}
for (s = 0; s < tf_numberstrips; s++) {
if (bc[s] > bufsize) {
tf_buf = (unsigned char *) _TIFFrealloc(tf_buf, bc[s]);
if (tf_buf == NULL) {
TIFFError(filename,
"No space for strip buffer");
return;
}
bufsize = bc[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();
for (cp = tf_buf; cc > 0; cc--)
Ascii85Put(*cp++, fd);
Ascii85Flush(fd);
}
}
_TIFFfree((char *) tf_buf);
}
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);
}
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",
" -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)",
" -o # convert directory at file offset #",
" -O file write PostScript to file instead of standard output",
" -a convert all directories in file (default is first)",
" -p generate regular PostScript",
" -s generate PostScript for a single image",
" -T print pages for top edge binding",
" -w # assume printed page width is # inches (default 8.5)",
" -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);
}
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