src/tiff/tools/fax2ps.c

   1
   2 /*
   3  * Copyright (c) 1991-1997 Sam Leffler
   4  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and
   7  * its documentation for any purpose is hereby granted without fee, provided
   8  * that (i) the above copyright notices and this permission notice appear in
   9  * all copies of the software and related documentation, and (ii) the names of
  10  * Sam Leffler and Silicon Graphics may not be used in any advertising or
  11  * publicity relating to the software without the specific, prior written
  12  * permission of Sam Leffler and Silicon Graphics.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  15  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  16  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  17  *
  18  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  19  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  20  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  21  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  22  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  23  * OF THIS SOFTWARE.
  24  */
  25 #include "tif_config.h"
  26
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <math.h>
  31 #include <time.h>
  32
  33 #ifdef HAVE_UNISTD_H
  34 # include <unistd.h>
  35 #endif
  36
  37 #ifdef HAVE_FCNTL_H
  38 # include <fcntl.h>
  39 #endif
  40
  41 #ifdef HAVE_IO_H
  42 # include <io.h>
  43 #endif
  44
  45 #ifdef NEED_LIBPORT
  46 # include "libport.h"
  47 #endif
  48
  49 #include "tiffio.h"
  50
  51 float   defxres = 204.;         /* default x resolution (pixels/inch) */
  52 float   defyres = 98.;          /* default y resolution (lines/inch) */
  53 const float half = 0.5;
  54 const float points = 72.0;
  55 float   pageWidth = 0;          /* image page width (inches) */
  56 float   pageHeight = 0;         /* image page length (inches) */
  57 int     scaleToPage = 0;        /* if true, scale raster to page dimensions */
  58 int     totalPages = 0;         /* total # pages printed */
  59 int     row;                    /* current output row */
  60 int     maxline = 512;          /* max output line of PostScript */
  61
  62 /*
  63  * Turn a bit-mapped scanline into the appropriate sequence
  64  * of PostScript characters to be rendered.
  65  *
  66  * Original version written by Bret D. Whissel,
  67  * Florida State University Meteorology Department
  68  * March 13-15, 1995.
  69  */
  70 static void
  71 printruns(unsigned char* buf, uint32* runs, uint32* erun, uint32 lastx)
  72 {
  73     static struct {
  74         char white, black;
  75         unsigned short width;
  76     } WBarr[] = {
  77         { 'd', 'n', 512 }, { 'e', 'o', 256 }, { 'f', 'p', 128 },
  78         { 'g', 'q',  64 }, { 'h', 'r',  32 }, { 'i', 's',  16 },
  79         { 'j', 't',   8 }, { 'k', 'u',   4 }, { 'l', 'v',   2 },
  80         { 'm', 'w',   1 }
  81     };
  82     static char* svalue =
  83         " !\"#$&'*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[]^_`abc";
  84     int colormode = 1;          /* 0 for white, 1 for black */
  85     uint32 runlength = 0;
  86     int n = maxline;
  87     uint32 x = 0;
  88     int l;
  89
  90     (void) buf;
  91     printf("%d m(", row++);
  92     while (runs < erun) {
  93         if (runlength <= 0) {
  94             colormode ^= 1;
  95             runlength = *runs++;
  96             if (x+runlength > lastx)
  97                 runlength = runs[-1] = lastx-x;
  98             x += runlength;
  99             if (!colormode && runs == erun)
 100                 break;          /* don't bother printing the final white run */
 101         }
 102         /*
 103          * If a runlength is greater than 6 pixels, then spit out
 104          * black or white characters until the runlength drops to
 105          * 6 or less.  Once a runlength is <= 6, then combine black
 106          * and white runlengths until a 6-pixel pattern is obtained.
 107          * Then write out the special character.  Six-pixel patterns
 108          * were selected since 64 patterns is the largest power of
 109          * two less than the 92 "easily printable" PostScript
 110          * characters (i.e., no escape codes or octal chars).
 111          */
 112         l = 0;
 113         while (runlength > 6) { /* Run is greater than six... */
 114             if (runlength >= WBarr[l].width) {
 115                 if (n == 0) {
 116                     putchar('\n');
 117                     n = maxline;
 118                 }
 119                 putchar(colormode ? WBarr[l].black : WBarr[l].white), n--;
 120                 runlength -= WBarr[l].width;
 121             } else
 122                 l++;
 123         }
 124         while (runlength > 0 && runlength <= 6) {
 125             uint32 bitsleft = 6;
 126             int t = 0;
 127             while (bitsleft) {
 128                 if (runlength <= bitsleft) {
 129                     if (colormode)
 130                         t |= ((1 << runlength)-1) << (bitsleft-runlength);
 131                     bitsleft -= runlength;
 132                     runlength = 0;
 133                     if (bitsleft) {
 134                         if (runs >= erun)
 135                             break;
 136                         colormode ^= 1;
 137                         runlength = *runs++;
 138                         if (x+runlength > lastx)
 139                             runlength = runs[-1] = lastx-x;
 140                         x += runlength;
 141                     }
 142                 } else {                /* runlength exceeds bits left */
 143                     if (colormode)
 144                         t |= ((1 << bitsleft)-1);
 145                     runlength -= bitsleft;
 146                     bitsleft = 0;
 147                 }
 148             }
 149             if (n == 0) {
 150                 putchar('\n');
 151                 n = maxline;
 152             }
 153             putchar(svalue[t]), n--;
 154         }
 155     }
 156     printf(")s\n");
 157 }
 158
 159 /*
 160  * Create a special PostScript font for printing FAX documents.  By taking
 161  * advantage of the font-cacheing mechanism, a substantial speed-up in
 162  * rendering time is realized.
 163  */
 164 static void
 165 emitFont(FILE* fd)
 166 {
 167     static const char* fontPrologue[] = {
 168         "/newfont 10 dict def newfont begin /FontType 3 def /FontMatrix [1",
 169         "0 0 1 0 0] def /FontBBox [0 0 512 1] def /Encoding 256 array def",
 170         "0 1 31{Encoding exch /255 put}for 120 1 255{Encoding exch /255",
 171         "put}for Encoding 37 /255 put Encoding 40 /255 put Encoding 41 /255",
 172         "put Encoding 92 /255 put /count 0 def /ls{Encoding exch count 3",
 173         "string cvs cvn put /count count 1 add def}def 32 1 36{ls}for",
 174         "38 1 39{ls}for 42 1 91{ls}for 93 1 99{ls}for /count 100",
 175         "def 100 1 119{ls}for /CharDict 5 dict def CharDict begin /white",
 176         "{dup 255 eq{pop}{1 dict begin 100 sub neg 512 exch bitshift",
 177         "/cw exch def cw 0 0 0 cw 1 setcachedevice end}ifelse}def /black",
 178         "{dup 255 eq{pop}{1 dict begin 110 sub neg 512 exch bitshift",
 179         "/cw exch def cw 0 0 0 cw 1 setcachedevice 0 0 moveto cw 0 rlineto",
 180         "0 1 rlineto cw neg 0 rlineto closepath fill end}ifelse}def /numbuild",
 181         "{dup 255 eq{pop}{6 0 0 0 6 1 setcachedevice 0 1 5{0 moveto",
 182         "dup 32 and 32 eq{1 0 rlineto 0 1 rlineto -1 0 rlineto closepath",
 183         "fill newpath}if 1 bitshift}for pop}ifelse}def /.notdef {}",
 184         "def /255 {}def end /BuildChar{exch begin dup 110 ge{Encoding",
 185         "exch get 3 string cvs cvi CharDict /black get}{dup 100 ge {Encoding",
 186         "exch get 3 string cvs cvi CharDict /white get}{Encoding exch get",
 187         "3 string cvs cvi CharDict /numbuild get}ifelse}ifelse exec end",
 188         "}def end /Bitfont newfont definefont 1 scalefont setfont",
 189         NULL
 190     };
 191     int i;
 192     for (i = 0; fontPrologue[i] != NULL; i++)
 193         fprintf(fd, "%s\n", fontPrologue[i]);
 194 }
 195
 196 void
 197 printTIF(TIFF* tif, uint16 pageNumber)
 198 {
 199     uint32 w, h;
 200     uint16 unit, compression;
 201     float xres, yres, scale = 1.0;
 202     tstrip_t s, ns;
 203     time_t creation_time;
 204
 205     TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
 206     TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
 207     if (!TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression)
 208         || compression < COMPRESSION_CCITTRLE
 209         || compression > COMPRESSION_CCITT_T6)
 210         return;
 211     if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) || !xres) {
 212         TIFFWarning(TIFFFileName(tif),
 213             "No x-resolution, assuming %g dpi", defxres);
 214         xres = defxres;
 215     }
 216     if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) || !yres) {
 217         TIFFWarning(TIFFFileName(tif),
 218             "No y-resolution, assuming %g lpi", defyres);
 219         yres = defyres;                                 /* XXX */
 220     }
 221     if (TIFFGetField(tif, TIFFTAG_RESOLUTIONUNIT, &unit) &&
 222       unit == RESUNIT_CENTIMETER) {
 223         xres *= 2.54F;
 224         yres *= 2.54F;
 225     }
 226     if (pageWidth == 0)
 227         pageWidth = w / xres;
 228     if (pageHeight == 0)
 229         pageHeight = h / yres;
 230
 231     printf("%%!PS-Adobe-3.0\n");
 232     printf("%%%%Creator: fax2ps\n");
 233 #ifdef notdef
 234     printf("%%%%Title: %s\n", file);
 235 #endif
 236     creation_time = time(0);
 237     printf("%%%%CreationDate: %s", ctime(&creation_time));
 238     printf("%%%%Origin: 0 0\n");
 239     printf("%%%%BoundingBox: 0 0 %u %u\n",
 240         (int)(pageWidth * points), (int)(pageHeight * points)); /* XXX */
 241     printf("%%%%Pages: (atend)\n");
 242     printf("%%%%EndComments\n");
 243     printf("%%%%BeginProlog\n");
 244     emitFont(stdout);
 245     printf("/d{bind def}def\n"); /* bind and def proc */
 246     printf("/m{0 exch moveto}d\n");
 247     printf("/s{show}d\n");
 248     printf("/p{showpage}d \n"); /* end page */
 249     printf("%%%%EndProlog\n");
 250     printf("%%%%Page: \"%u\" %u\n", pageNumber, pageNumber);
 251     printf("/$pageTop save def gsave\n");
 252     if (scaleToPage)
 253         scale = pageHeight / (h/yres) < pageWidth / (w/xres) ?
 254             pageHeight / (h/yres) : pageWidth / (w/xres);
 255     printf("%g %g translate\n",
 256            points * (pageWidth - scale*w/xres) * half,
 257            points * (scale*h/yres + (pageHeight - scale*h/yres) * half));
 258     printf("%g %g scale\n", points/xres*scale, -points/yres*scale);
 259     printf("0 setgray\n");
 260     TIFFSetField(tif, TIFFTAG_FAXFILLFUNC, printruns);
 261     ns = TIFFNumberOfStrips(tif);
 262     row = 0;
 263     for (s = 0; s < ns; s++)
 264         (void) TIFFReadEncodedStrip(tif, s, (tdata_t) NULL, (tsize_t) -1);
 265     printf("p\n");
 266     printf("grestore $pageTop restore\n");
 267     totalPages++;
 268 }
 269
 270 #define GetPageNumber(tif) \
 271 TIFFGetField(tif, TIFFTAG_PAGENUMBER, &pn, &ptotal)
 272
 273 int
 274 findPage(TIFF* tif, uint16 pageNumber)
 275 {
 276     uint16 pn = (uint16) -1;
 277     uint16 ptotal = (uint16) -1;
 278     if (GetPageNumber(tif)) {
 279         while (pn != (pageNumber-1) && TIFFReadDirectory(tif) && GetPageNumber(tif))
 280             ;
 281         return (pn == (pageNumber-1));
 282     } else
 283         return (TIFFSetDirectory(tif, (tdir_t)(pageNumber-1)));
 284 }
 285
 286 void
 287 fax2ps(TIFF* tif, uint16 npages, uint16* pages, char* filename)
 288 {
 289     if (npages > 0) {
 290         uint16 pn, ptotal;
 291         int i;
 292
 293         if (!GetPageNumber(tif))
 294             fprintf(stderr, "%s: No page numbers, counting directories.\n",
 295                 filename);
 296         for (i = 0; i < npages; i++) {
 297             if (findPage(tif, pages[i]))
 298                 printTIF(tif, pages[i]);
 299             else
 300                 fprintf(stderr, "%s: No page number %d\n", filename, pages[i]);
 301         }
 302     } else {
 303         uint16 pageNumber = 0;
 304         do
 305             printTIF(tif, pageNumber++);
 306         while (TIFFReadDirectory(tif));
 307     }
 308 }
 309
 310 #undef GetPageNumber
 311
 312 static int
 313 pcompar(const void* va, const void* vb)
 314 {
 315     const int* pa = (const int*) va;
 316     const int* pb = (const int*) vb;
 317     return (*pa - *pb);
 318 }
 319
 320 static  void usage(int code);
 321
 322 int
 323 main(int argc, char** argv)
 324 {
 325     extern int optind;
 326     extern char* optarg;
 327     uint16 *pages = NULL, npages = 0, pageNumber;
 328     int c, dowarnings = 0;              /* if 1, enable library warnings */
 329     TIFF* tif;
 330
 331     while ((c = getopt(argc, argv, "l:p:x:y:W:H:wS")) != -1)
 332         switch (c) {
 333         case 'H':               /* page height */
 334             pageHeight = (float)atof(optarg);
 335             break;
 336         case 'S':               /* scale to page */
 337             scaleToPage = 1;
 338             break;
 339         case 'W':               /* page width */
 340             pageWidth = (float)atof(optarg);
 341             break;
 342         case 'p':               /* print specific page */
 343             pageNumber = (uint16)atoi(optarg);
 344             if (pages)
 345                 pages = (uint16*) realloc(pages, (npages+1)*sizeof(uint16));
 346             else
 347                 pages = (uint16*) malloc(sizeof(uint16));
 348             pages[npages++] = pageNumber;
 349             break;
 350         case 'w':
 351             dowarnings = 1;
 352             break;
 353         case 'x':
 354             defxres = (float)atof(optarg);
 355             break;
 356         case 'y':
 357             defyres = (float)atof(optarg);
 358             break;
 359         case 'l':
 360             maxline = atoi(optarg);
 361             break;
 362         case '?':
 363             usage(-1);
 364         }
 365     if (npages > 0)
 366         qsort(pages, npages, sizeof(uint16), pcompar);
 367     if (!dowarnings)
 368         TIFFSetWarningHandler(0);
 369     if (optind < argc) {
 370         do {
 371             tif = TIFFOpen(argv[optind], "r");
 372             if (tif) {
 373                 fax2ps(tif, npages, pages, argv[optind]);
 374                 TIFFClose(tif);
 375             } else
 376                 fprintf(stderr, "%s: Can not open, or not a TIFF file.\n",
 377                     argv[optind]);
 378         } while (++optind < argc);
 379     } else {
 380         int n;
 381         FILE* fd;
 382         char buf[16*1024];
 383
 384         fd = tmpfile();
 385         if (fd == NULL) {
 386             fprintf(stderr, "Could not obtain temporary file.\n");
 387             exit(-2);
 388         }
 389 #if defined(HAVE_SETMODE) && defined(O_BINARY)
 390         setmode(fileno(stdin), O_BINARY);
 391 #endif
 392         while ((n = read(fileno(stdin), buf, sizeof (buf))) > 0)
 393             write(fileno(fd), buf, n);
 394         lseek(fileno(fd), 0, SEEK_SET);
 395 #if defined(_WIN32) && defined(USE_WIN32_FILEIO)
 396         tif = TIFFFdOpen(_get_osfhandle(fileno(fd)), "temp", "r");
 397 #else
 398         tif = TIFFFdOpen(fileno(fd), "temp", "r");
 399 #endif
 400         if (tif) {
 401             fax2ps(tif, npages, pages, "<stdin>");
 402             TIFFClose(tif);
 403         } else
 404             fprintf(stderr, "Can not open, or not a TIFF file.\n");
 405         fclose(fd);
 406     }
 407     printf("%%%%Trailer\n");
 408     printf("%%%%Pages: %u\n", totalPages);
 409     printf("%%%%EOF\n");
 410
 411     return (0);
 412 }
 413
 414 char* stuff[] = {
 415 "usage: fax2ps [options] [input.tif ...]",
 416 "where options are:",
 417 " -w            suppress warning messages",
 418 " -l chars      set maximum output line length for generated PostScript",
 419 " -p page#      select page to print (can use multiple times)",
 420 " -x xres       set default horizontal resolution of input data (dpi)",
 421 " -y yres       set default vertical resolution of input data (lpi)",
 422 " -S            scale output to page size",
 423 " -W width      set output page width (inches), default is 8.5",
 424 " -H height     set output page height (inches), default is 11",
 425 NULL
 426 };
 427
 428 static void
 429 usage(int code)
 430 {
 431         char buf[BUFSIZ];
 432         int i;
 433
 434         setbuf(stderr, buf);
 435         fprintf(stderr, "%s\n\n", TIFFGetVersion());
 436         for (i = 0; stuff[i] != NULL; i++)
 437                 fprintf(stderr, "%s\n", stuff[i]);
 438         exit(code);
 439 }
 440
 441 /* vim: set ts=8 sts=8 sw=8 noet: */
 442 /*
 443  * Local Variables:
 444  * mode: c
 445  * c-basic-offset: 8
 446  * fill-column: 78
 447  * End:
 448  */