/* $Id: fax2ps.c,v 1.19 2005/03/03 12:48:31 dron Exp $" */
/*
* Copyright (c) 1991-1997 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 "tif_config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_IO_H
# include <io.h>
#endif
#include "tiffio.h"
float defxres = 204.; /* default x resolution (pixels/inch) */
float defyres = 98.; /* default y resolution (lines/inch) */
const float half = 0.5;
const float points = 72.0;
float pageWidth = 0; /* image page width (inches) */
float pageHeight = 0; /* image page length (inches) */
int scaleToPage = 0; /* if true, scale raster to page dimensions */
int totalPages = 0; /* total # pages printed */
int row; /* current output row */
int maxline = 512; /* max output line of PostScript */
/*
* Turn a bit-mapped scanline into the appropriate sequence
* of PostScript characters to be rendered.
*
* Original version written by Bret D. Whissel,
* Florida State University Meteorology Department
* March 13-15, 1995.
*/
static void
printruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx)
{
static struct {
char white, black;
unsigned short width;
} WBarr[] = {
{ 'd', 'n', 512 }, { 'e', 'o', 256 }, { 'f', 'p', 128 },
{ 'g', 'q', 64 }, { 'h', 'r', 32 }, { 'i', 's', 16 },
{ 'j', 't', 8 }, { 'k', 'u', 4 }, { 'l', 'v', 2 },
{ 'm', 'w', 1 }
};
static char* svalue =
" !\"#$&'*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abc";
int colormode = 1; /* 0 for white, 1 for black */
uint32 runlength = 0;
int n = maxline;
uint32 x = 0;
int l;
(void) buf;
printf("%d m(", row++);
while (runs < erun) {
if (runlength <= 0) {
colormode ^= 1;
runlength = *runs++;
if (x+runlength > lastx)
runlength = runs[-1] = lastx-x;
x += runlength;
if (!colormode && runs == erun)
break; /* don't bother printing the final white run */
}
/*
* If a runlength is greater than 6 pixels, then spit out
* black or white characters until the runlength drops to
* 6 or less. Once a runlength is <= 6, then combine black
* and white runlengths until a 6-pixel pattern is obtained.
* Then write out the special character. Six-pixel patterns
* were selected since 64 patterns is the largest power of
* two less than the 92 "easily printable" PostScript
* characters (i.e., no escape codes or octal chars).
*/
l = 0;
while (runlength > 6) { /* Run is greater than six... */
if (runlength >= WBarr[l].width) {
if (n == 0) {
putchar('\n');
n = maxline;
}
putchar(colormode ? WBarr[l].black : WBarr[l].white), n--;
runlength -= WBarr[l].width;
} else
l++;
}
while (runlength > 0 && runlength <= 6) {
uint32 bitsleft = 6;
int t = 0;
while (bitsleft) {
if (runlength <= bitsleft) {
if (colormode)
t |= ((1 << runlength)-1) << (bitsleft-runlength);
bitsleft -= runlength;
runlength = 0;
if (bitsleft) {
if (runs >= erun)
break;
colormode ^= 1;
runlength = *runs++;
if (x+runlength > lastx)
runlength = runs[-1] = lastx-x;
x += runlength;
}
} else { /* runlength exceeds bits left */
if (colormode)
t |= ((1 << bitsleft)-1);
runlength -= bitsleft;
bitsleft = 0;
}
}
if (n == 0) {
putchar('\n');
n = maxline;
}
putchar(svalue[t]), n--;
}
}
printf(")s\n");
}
/*
* Create a special PostScript font for printing FAX documents. By taking
* advantage of the font-cacheing mechanism, a substantial speed-up in
* rendering time is realized.
*/
static void
emitFont(FILE* fd)
{
static const char* fontPrologue[] = {
"/newfont 10 dict def newfont begin /FontType 3 def /FontMatrix [1",
"0 0 1 0 0] def /FontBBox [0 0 512 1] def /Encoding 256 array def",
"0 1 31{Encoding exch /255 put}for 120 1 255{Encoding exch /255",
"put}for Encoding 37 /255 put Encoding 40 /255 put Encoding 41 /255",
"put Encoding 92 /255 put /count 0 def /ls{Encoding exch count 3",
"string cvs cvn put /count count 1 add def}def 32 1 36{ls}for",
"38 1 39{ls}for 42 1 91{ls}for 93 1 99{ls}for /count 100",
"def 100 1 119{ls}for /CharDict 5 dict def CharDict begin /white",
"{dup 255 eq{pop}{1 dict begin 100 sub neg 512 exch bitshift",
"/cw exch def cw 0 0 0 cw 1 setcachedevice end}ifelse}def /black",
"{dup 255 eq{pop}{1 dict begin 110 sub neg 512 exch bitshift",
"/cw exch def cw 0 0 0 cw 1 setcachedevice 0 0 moveto cw 0 rlineto",
"0 1 rlineto cw neg 0 rlineto closepath fill end}ifelse}def /numbuild",
"{dup 255 eq{pop}{6 0 0 0 6 1 setcachedevice 0 1 5{0 moveto",
"dup 32 and 32 eq{1 0 rlineto 0 1 rlineto -1 0 rlineto closepath",
"fill newpath}if 1 bitshift}for pop}ifelse}def /.notdef {}",
"def /255 {}def end /BuildChar{exch begin dup 110 ge{Encoding",
"exch get 3 string cvs cvi CharDict /black get}{dup 100 ge {Encoding",
"exch get 3 string cvs cvi CharDict /white get}{Encoding exch get",
"3 string cvs cvi CharDict /numbuild get}ifelse}ifelse exec end",
"}def end /Bitfont newfont definefont 1 scalefont setfont",
NULL
};
int i;
for (i = 0; fontPrologue[i] != NULL; i++)
fprintf(fd, "%s\n", fontPrologue[i]);
}
void
printTIF(TIFF* tif, uint16 pageNumber)
{
uint32 w, h;
uint16 unit, compression;
float xres, yres, scale = 1.0;
tstrip_t s, ns;
time_t creation_time;
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
if (!TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression)
|| compression < COMPRESSION_CCITTRLE
|| compression > COMPRESSION_CCITT_T6)
return;
if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) || !xres) {
TIFFWarning(TIFFFileName(tif),
"No x-resolution, assuming %g dpi", defxres);
xres = defxres;
}
if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) || !yres) {
TIFFWarning(TIFFFileName(tif),
"No y-resolution, assuming %g lpi", defyres);
yres = defyres; /* XXX */
}
if (TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &unit) &&
unit == RESUNIT_CENTIMETER) {
xres *= 2.54F;
yres *= 2.54F;
}
if (pageWidth == 0)
pageWidth = w / xres;
if (pageHeight == 0)
pageHeight = h / yres;
printf("%%!PS-Adobe-3.0\n");
printf("%%%%Creator: fax2ps\n");
#ifdef notdef
printf("%%%%Title: %s\n", file);
#endif
creation_time = time(0);
printf("%%%%CreationDate: %s", ctime(&creation_time));
printf("%%%%Origin: 0 0\n");
printf("%%%%BoundingBox: 0 0 %u %u\n",
(int)(pageWidth * points), (int)(pageHeight * points)); /* XXX */
printf("%%%%Pages: (atend)\n");
printf("%%%%EndComments\n");
printf("%%%%BeginProlog\n");
emitFont(stdout);
printf("/d{bind def}def\n"); /* bind and def proc */
printf("/m{0 exch moveto}d\n");
printf("/s{show}d\n");
printf("/p{showpage}d \n"); /* end page */
printf("%%%%EndProlog\n");
printf("%%%%Page: \"%u\" %u\n", pageNumber, pageNumber);
printf("/$pageTop save def gsave\n");
if (scaleToPage)
scale = pageHeight / (h/yres) < pageWidth / (w/xres) ?
pageHeight / (h/yres) : pageWidth / (w/xres);
printf("%g %g translate\n",
points * (pageWidth - scale*w/xres) * half,
points * (scale*h/yres + (pageHeight - scale*h/yres) * half));
printf("%g %g scale\n", points/xres*scale, -points/yres*scale);
printf("0 setgray\n");
TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, printruns);
ns = TIFFNumberOfStrips(tif);
row = 0;
for (s = 0; s < ns; s++)
(void) TIFFReadEncodedStrip(tif, s, (tdata_t) NULL, (tsize_t) -1);
printf("p\n");
printf("grestore $pageTop restore\n");
totalPages++;
}
#define GetPageNumber(tif) \
TIFFGetField(tif, TIFFTAG_PAGENUMBER, &pn, &ptotal)
int
findPage(TIFF* tif, uint16 pageNumber)
{
uint16 pn = (uint16) -1;
uint16 ptotal = (uint16) -1;
if (GetPageNumber(tif)) {
while (pn != pageNumber && TIFFReadDirectory(tif) && GetPageNumber(tif))
;
return (pn == pageNumber);
} else
return (TIFFSetDirectory(tif, (tdir_t)(pageNumber-1)));
}
void
fax2ps(TIFF* tif, uint16 npages, uint16* pages, char* filename)
{
if (npages > 0) {
uint16 pn, ptotal;
int i;
if (!GetPageNumber(tif))
fprintf(stderr, "%s: No page numbers, counting directories.\n",
filename);
for (i = 0; i < npages; i++) {
if (findPage(tif, pages[i]))
printTIF(tif, pages[i]);
else
fprintf(stderr, "%s: No page number %d\n", filename, pages[i]);
}
} else {
uint16 pageNumber = 0;
do
printTIF(tif, pageNumber++);
while (TIFFReadDirectory(tif));
}
}
#undef GetPageNumber
static int
pcompar(const void* va, const void* vb)
{
const int* pa = (const int*) va;
const int* pb = (const int*) vb;
return (*pa - *pb);
}
static void usage(int code);
int
main(int argc, char** argv)
{
extern int optind;
extern char* optarg;
uint16 *pages = NULL, npages = 0, pageNumber;
int c, dowarnings = 0; /* if 1, enable library warnings */
TIFF* tif;
while ((c = getopt(argc, argv, "l:p:x:y:W:H:wS")) != -1)
switch (c) {
case 'H': /* page height */
pageHeight = (float)atof(optarg);
break;
case 'S': /* scale to page */
scaleToPage = 1;
break;
case 'W': /* page width */
pageWidth = (float)atof(optarg);
break;
case 'p': /* print specific page */
pageNumber = (uint16)atoi(optarg);
if (pages)
pages = (uint16*) realloc(pages, (npages+1)*sizeof(uint16));
else
pages = (uint16*) malloc(sizeof(uint16));
pages[npages++] = pageNumber;
break;
case 'w':
dowarnings = 1;
break;
case 'x':
defxres = (float)atof(optarg);
break;
case 'y':
defyres = (float)atof(optarg);
break;
case 'l':
maxline = atoi(optarg);
break;
case '?':
usage(-1);
}
if (npages > 0)
qsort(pages, npages, sizeof(uint16), pcompar);
if (!dowarnings)
TIFFSetWarningHandler(0);
if (optind < argc) {
do {
tif = TIFFOpen(argv[optind], "r");
if (tif) {
fax2ps(tif, npages, pages, argv[optind]);
TIFFClose(tif);
} else
fprintf(stderr, "%s: Can not open, or not a TIFF file.\n",
argv[optind]);
} while (++optind < argc);
} else {
int n;
FILE* fd;
char buf[16*1024];
fd = tmpfile();
if (fd == NULL) {
fprintf(stderr, "Could not create temporary file, exiting.\n");
fclose(fd);
exit(-2);
}
while ((n = read(fileno(stdin), buf, sizeof (buf))) > 0)
write(fileno(fd), buf, n);
tif = TIFFFdOpen(fileno(fd), "temp", "r");
if (tif) {
fax2ps(tif, npages, pages, "<stdin>");
TIFFClose(tif);
} else
fprintf(stderr, "Can not open, or not a TIFF file.\n");
fclose(fd);
}
printf("%%%%Trailer\n");
printf("%%%%Pages: %u\n", totalPages);
printf("%%%%EOF\n");
return (0);
}
char* stuff[] = {
"usage: fax2ps [options] [input.tif ...]",
"where options are:",
" -w suppress warning messages",
" -l chars set maximum output line length for generated PostScript",
" -p page# select page to print (can use multiple times)",
" -x xres set default horizontal resolution of input data (dpi)",
" -y yres set default vertical resolution of input data (lpi)",
" -S scale output to page size",
" -W width set output page width (inches), default is 8.5",
" -H height set output page height (inchest), default is 11",
NULL
};
static void
usage(int code)
{
char buf[BUFSIZ];
int i;
setbuf(stderr, buf);
fprintf(stderr, "%s\n\n", TIFFGetVersion());
for (i = 0; stuff[i] != NULL; i++)
fprintf(stderr, "%s\n", stuff[i]);
exit(code);
}
/* vim: set ts=8 sts=8 sw=8 noet: */
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