This is tiff2ps.c in view mode; [Download] [Up]
#ifndef lint
static char rcsid[] = "/mode/users/src/master/tiff/tools/tiff2ps.c,v 1.2 1994/06/29 17:23:24 fedor Exp";
#endif
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler
* Copyright (c) 1991, 1992 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 <math.h>
#include <stdio.h>
#include "tiffio.h"
typedef unsigned char u_char;
typedef unsigned short u_short;
typedef unsigned long u_long;
extern double atof();
char *filename;
main(argc, argv)
int argc;
char *argv[];
{
int dirnum = -1, c;
TIFF *tif;
char *cp;
float width = 0.0;
float height = 0.0;
extern char *optarg;
extern int optind;
while ((c = getopt(argc, argv, "h:H:w:W:d:")) != -1)
switch (c) {
case 'd':
dirnum = atoi(optarg);
break;
case 'h': case 'H':
height = atof(optarg);
break;
case 'w': case 'W':
width = atof(optarg);
break;
case '?':
usage(-1);
}
if (argc - optind < 1)
usage(-2);
tif = TIFFOpen(filename = argv[optind], "r");
if (tif != NULL) {
if (dirnum != -1 && !TIFFSetDirectory(tif, dirnum))
exit(-1);
TIFF2PS(stdout, tif, width, height);
}
exit(0);
}
usage(code)
int code;
{
fprintf(stderr, "Usage: tiff2ps %s %s %s file\n"
, "[-w inches]"
, "[-h inches]"
, "[-d dirnum]"
);
exit(code);
}
static u_short samplesperpixel;
static u_short bitspersample;
static u_short planarconfiguration;
static u_short photometric;
static u_short matte = 0;
static
checkImage(tif)
TIFF *tif;
{
switch (bitspersample) {
case 1: case 2:
case 4: case 8:
break;
default:
TIFFError(filename, "Can not handle %d-bit/sample image",
bitspersample);
return (0);
}
switch (photometric) {
case PHOTOMETRIC_RGB:
if (matte && 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;
default:
TIFFError(filename,
"Can not handle image with PhotometricInterpretation=%d",
photometric);
return (0);
}
if (planarconfiguration == PLANARCONFIG_SEPARATE && matte)
TIFFWarning(filename, "Ignoring alpha data");
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
PhotoshopBanner(fd, w, h, bs, nc, startline)
FILE *fd;
u_long w, h;
int bs, nc;
char *startline;
{
fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"",
w, h, bitspersample, nc, bs);
fprintf(fd, startline, nc);
fprintf(fd, "\"\n");
}
static u_short tf_bytesperrow;
static u_short ps_bytesperrow;
static char *hex = "0123456789abcdef";
TIFF2PS(fd, tif, width, height)
FILE* fd;
TIFF *tif;
float width, height;
{
u_long w, h;
u_short res_tag, res_unit;
int bgc;
float ox, oy, xres, yres;
long t;
extern char *ctime();
tf_bytesperrow = TIFFScanlineSize(tif);
TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, &bitspersample);
TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, &samplesperpixel);
TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &planarconfiguration);
TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric);
TIFFGetField(tif, TIFFTAG_MATTEING, &matte);
if (!checkImage(tif))
return;
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox))
ox = 0;
if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy))
oy = 0;
if (!TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit))
res_tag = RESUNIT_NONE;
switch (res_tag) {
case RESUNIT_CENTIMETER:
res_unit = 2.54; /* centimeters per inch */
break;
case RESUNIT_INCH:
case RESUNIT_NONE:
default:
res_unit = 1.0;
break;
}
if (width == 0.0) {
if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres))
xres = PS_UNIT_SIZE / res_unit;
} else
xres = (float) w / width;
if (height == 0.0) {
if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres))
yres = PS_UNIT_SIZE / res_unit;
} else
yres = (float) h / height;
t = time(0);
fprintf(fd, "%%!PS-Adobe-3.0 EPSF-3.0\n");
fprintf(fd, "%%%%Creator: tiff2ps\n");
fprintf(fd, "%%%%Title: %s\n", filename);
fprintf(fd, "%%%%CreationDate: %s", ctime(&t));
fprintf(fd, "%%%%Origin: %ld %ld\n", (long) ox, (long) oy);
fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n",
(long) ceil(PSUNITS(w,xres)), (long) ceil(PSUNITS(h,yres)));
fprintf(fd, "%%%%EndComments\n");
fprintf(fd, "gsave\n");
fprintf(fd, "10 dict begin\n");
ps_bytesperrow = tf_bytesperrow;
switch (photometric) {
case PHOTOMETRIC_RGB:
if (planarconfiguration == PLANARCONFIG_CONTIG) {
fprintf(fd, "%s", RGBcolorimage);
PSColorContigPreamble(fd, w, h, xres, yres, 3);
PSDataColorContig(fd, tif, w, h, 3);
} else {
PSColorSeparatePreamble(fd, w, h, xres, yres, 3);
PSDataColorSeparate(fd, tif, w, h, 3);
}
break;
case PHOTOMETRIC_SEPARATED:
/* XXX should emit CMYKcolorimage */
if (planarconfiguration == PLANARCONFIG_CONTIG) {
PSColorContigPreamble(fd, w, h, xres, yres, 4);
PSDataColorContig(fd, tif, w, h, 4);
} else {
PSColorSeparatePreamble(fd, w, h, xres, yres, 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 %d string def\n", ps_bytesperrow);
fprintf(fd, "%f %f scale\n",
(float) PSUNITS(w,xres), (float) PSUNITS(h,yres));
fprintf(fd, "%lu %lu 8\n", w, h);
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, 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 %d string def\n", ps_bytesperrow);
fprintf(fd, "%f %f scale\n",
(float) PSUNITS(w,xres), (float) PSUNITS(h,yres));
fprintf(fd, "%lu %lu %d\n", w, h, bitspersample);
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, h);
fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n");
fprintf(fd, "image\n");
PSDataBW(fd, tif, w, h);
break;
}
putc('\n', fd);
fprintf(fd, "end\n");
fprintf(fd, "grestore\n");
fprintf(fd, "showpage\n");
fprintf(fd, "%%%%Trailer\n");
}
PSColorContigPreamble(fd, w, h, xres, yres, nc)
FILE *fd;
u_long w, h;
float xres, yres;
int nc;
{
ps_bytesperrow = (u_short) nc * (tf_bytesperrow / samplesperpixel);
PhotoshopBanner(fd, w, h, 1, nc, "false %d colorimage");
fprintf(fd, "/line %d string def\n", ps_bytesperrow);
fprintf(fd, "%f %f scale\n",
(float) PSUNITS(w,xres), (float) PSUNITS(h,yres));
fprintf(fd, "%lu %lu %d\n", w, h, bitspersample);
fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", w, h, h);
fprintf(fd, "{currentfile line readhexstring pop} bind\n");
fprintf(fd, "false %d colorimage\n", nc);
}
PSColorSeparatePreamble(fd, w, h, xres, yres, nc)
FILE *fd;
u_long w, h;
float xres, yres;
int nc;
{
int i;
PhotoshopBanner(fd, w, h, ps_bytesperrow, nc, "true %d colorimage");
for (i = 0; i < nc; i++)
fprintf(fd, "/line%d %d string def\n", i, ps_bytesperrow);
fprintf(fd, "%f %f scale\n",
(float) PSUNITS(w,xres), (float) PSUNITS(h,yres));
fprintf(fd, "%lu %lu %d\n", w, h, bitspersample);
fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n", w, h, 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)
PSDataColorContig(fd, tif, w, h, nc)
FILE* fd;
TIFF* tif;
u_long w, h;
int nc;
{
u_long row;
int breaklen = MAXLINE, cc, es = samplesperpixel - nc;
u_char *tf_buf;
u_char *cp, c;
tf_buf = (u_char *) malloc(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 (matte) {
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;
}
}
}
free((char *) tf_buf);
}
PSDataColorSeparate(fd, tif, w, h, nc)
FILE* fd;
TIFF* tif;
u_long w, h;
int nc;
{
u_long row;
int breaklen = MAXLINE, cc, s, maxs;
u_char *tf_buf;
u_char *cp, c;
tf_buf = (u_char *) malloc(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);
}
}
}
free((char *) tf_buf);
}
#define PUTRGBHEX(c,fd) \
PUTHEX(rmap[c],fd); PUTHEX(gmap[c],fd); PUTHEX(bmap[c],fd)
static int
checkcmap(tif, n, r, g, b)
TIFF *tif;
int n;
u_short *r, *g, *b;
{
while (n-- > 0)
if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256)
return (16);
TIFFWarning(filename, "Assuming 8-bit colormap");
return (8);
}
PSDataPalette(fd, tif, w, h)
FILE* fd;
TIFF* tif;
u_long w, h;
{
u_short *rmap, *gmap, *bmap;
u_long row;
int breaklen = MAXLINE, cc, nc;
u_char *tf_buf;
u_char *cp, c;
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 = (u_char *) malloc(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) / ((1L<<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;
}
}
}
free((char *) tf_buf);
}
PSDataBW(fd, tif, w, h)
FILE* fd;
TIFF* tif;
u_long w, h;
{
u_long row;
int breaklen = MAXLINE, cc;
u_char *tf_buf;
u_char *cp, c;
tf_buf = (u_char *) malloc(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;
for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) {
DOBREAK(breaklen, 1, fd);
c = *cp++;
if (photometric == PHOTOMETRIC_MINISWHITE)
c = ~c;
PUTHEX(c, fd);
}
}
free((char *) tf_buf);
}
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