1 /* $Id: tiff2ps.c,v 1.44 2010-03-10 18:56:50 bfriesen Exp $ */ 2 3 /* 4 * Copyright (c) 1988-1997 Sam Leffler 5 * Copyright (c) 1991-1997 Silicon Graphics, Inc. 6 * 7 * Permission to use, copy, modify, distribute, and sell this software and 8 * its documentation for any purpose is hereby granted without fee, provided 9 * that (i) the above copyright notices and this permission notice appear in 10 * all copies of the software and related documentation, and (ii) the names of 11 * Sam Leffler and Silicon Graphics may not be used in any advertising or 12 * publicity relating to the software without the specific, prior written 13 * permission of Sam Leffler and Silicon Graphics. 14 * 15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 18 * 19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR 20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, 21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 * OF THIS SOFTWARE. 25 */ 26 27 #include "tif_config.h" 28 29 #include <stdio.h> 30 #include <stdlib.h> /* for atof */ 31 #include <math.h> 32 #include <time.h> 33 #include <string.h> 34 35 #ifdef HAVE_UNISTD_H 36 # include <unistd.h> 37 #endif 38 39 #ifdef NEED_LIBPORT 40 # include "libport.h" 41 #endif 42 43 #include "tiffio.h" 44 45 /* 46 * Revision history 47 * 48 * 2005-June-3 49 * Richard Nolde: Added support for rotations of 90, 180, 270 50 * and auto using -r <90|180|270|auto>. Auto picks the best 51 * fit for the image on the specified paper size (eg portrait 52 * or landscape) if -h or -w is specified. Rotation is in 53 * degrees counterclockwise since that is how Postscript does 54 * it. Auto rotates 90 degrees ccw to produce landscape. 55 * 56 * Added maxPageWidth option using -W flag. MaxPageHeight and 57 * MaxPageWidth are mutually exclusive since the aspect ratio 58 * cannot be maintained if you set both. 59 * Rewrote PlaceImage to allow maxPageHeight and maxPageWidth 60 * options to work with values smaller or larger than the 61 * physical paper size and still preserve the aspect ratio. 62 * This is accomplished by creating multiple pages across 63 * as well as down if need be. 64 * 65 * 2001-Mar-21 66 * I (Bruce A. Mallett) added this revision history comment ;) 67 * 68 * Fixed PS_Lvl2page() code which outputs non-ASCII85 raw 69 * data. Moved test for when to output a line break to 70 * *after* the output of a character. This just serves 71 * to fix an eye-nuisance where the first line of raw 72 * data was one character shorter than subsequent lines. 73 * 74 * Added an experimental ASCII85 encoder which can be used 75 * only when there is a single buffer of bytes to be encoded. 76 * This version is much faster at encoding a straight-line 77 * buffer of data because it can avoid alot of the loop 78 * overhead of the byte-by-bye version. To use this version 79 * you need to define EXP_ASCII85ENCODER (experimental ...). 80 * 81 * Added bug fix given by Michael Schmidt to PS_Lvl2page() 82 * in which an end-of-data marker ('>') was not being output 83 * when producing non-ASCII85 encoded PostScript Level 2 84 * data. 85 * 86 * Fixed PS_Lvl2colorspace() so that it no longer assumes that 87 * a TIFF having more than 2 planes is a CMYK. This routine 88 * no longer looks at the samples per pixel but instead looks 89 * at the "photometric" value. This change allows support of 90 * CMYK TIFFs. 91 * 92 * Modified the PostScript L2 imaging loop so as to test if 93 * the input stream is still open before attempting to do a 94 * flushfile on it. This was done because some RIPs close 95 * the stream after doing the image operation. 96 * 97 * Got rid of the realloc() being done inside a loop in the 98 * PSRawDataBW() routine. The code now walks through the 99 * byte-size array outside the loop to determine the largest 100 * size memory block that will be needed. 101 * 102 * Added "-m" switch to ask tiff2ps to, where possible, use the 103 * "imagemask" operator instead of the "image" operator. 104 * 105 * Added the "-i #" switch to allow interpolation to be disabled. 106 * 107 * Unrolled a loop or two to improve performance. 108 */ 109 110 /* 111 * Define EXP_ASCII85ENCODER if you want to use an experimental 112 * version of the ASCII85 encoding routine. The advantage of 113 * using this routine is that tiff2ps will convert to ASCII85 114 * encoding at between 3 and 4 times the speed as compared to 115 * using the old (non-experimental) encoder. The disadvantage 116 * is that you will be using a new (and unproven) encoding 117 * routine. So user beware, you have been warned! 118 */ 119 120 #define EXP_ASCII85ENCODER 121 122 /* 123 * NB: this code assumes uint32 works with printf's %l[ud]. 124 */ 125 #ifndef TRUE 126 #define TRUE 1 127 #define FALSE 0 128 #endif 129 130 #define HORIZONTAL 1 131 #define VERTICAL 2 132 133 int ascii85 = FALSE; /* use ASCII85 encoding */ 134 int interpolate = TRUE; /* interpolate level2 image */ 135 int level2 = FALSE; /* generate PostScript level 2 */ 136 int level3 = FALSE; /* generate PostScript level 3 */ 137 int printAll = FALSE; /* print all images in file */ 138 int generateEPSF = TRUE; /* generate Encapsulated PostScript */ 139 int PSduplex = FALSE; /* enable duplex printing */ 140 int PStumble = FALSE; /* enable top edge binding */ 141 int PSavoiddeadzone = TRUE; /* enable avoiding printer deadzone */ 142 double maxPageHeight = 0; /* maximum height to select from image and print per page */ 143 double maxPageWidth = 0; /* maximum width to select from image and print per page */ 144 double splitOverlap = 0; /* amount for split pages to overlag */ 145 int rotate = FALSE; /* rotate image by angle 90, 180, 270 degrees */ 146 int rotation = 0; /* optional value for rotation angle */ 147 char *filename; /* input filename */ 148 int useImagemask = FALSE; /* Use imagemask instead of image operator */ 149 uint16 res_unit = 0; /* Resolution units: 2 - inches, 3 - cm */ 150 151 /* 152 * ASCII85 Encoding Support. 153 */ 154 unsigned char ascii85buf[10]; 155 int ascii85count; 156 int ascii85breaklen; 157 158 int TIFF2PS(FILE*, TIFF*, double, double, double, double, int); 159 void PSpage(FILE*, TIFF*, uint32, uint32); 160 void PSColorContigPreamble(FILE*, uint32, uint32, int); 161 void PSColorSeparatePreamble(FILE*, uint32, uint32, int); 162 void PSDataColorContig(FILE*, TIFF*, uint32, uint32, int); 163 void PSDataColorSeparate(FILE*, TIFF*, uint32, uint32, int); 164 void PSDataPalette(FILE*, TIFF*, uint32, uint32); 165 void PSDataBW(FILE*, TIFF*, uint32, uint32); 166 void PSRawDataBW(FILE*, TIFF*, uint32, uint32); 167 void Ascii85Init(void); 168 void Ascii85Put(unsigned char code, FILE* fd); 169 void Ascii85Flush(FILE* fd); 170 void PSHead(FILE*, TIFF*, uint32, uint32, double, double, double, double); 171 void PSTail(FILE*, int); 172 173 #if defined( EXP_ASCII85ENCODER) 174 tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ); 175 #endif 176 177 static void usage(int); 178 179 int 180 main(int argc, char* argv[]) 181 { 182 int dirnum = -1, c, np = 0; 183 int centered = 0; 184 double bottommargin = 0; 185 double leftmargin = 0; 186 double pageWidth = 0; 187 double pageHeight = 0; 188 uint32 diroff = 0; 189 extern char *optarg; 190 extern int optind; 191 FILE* output = stdout; 192 193 while ((c = getopt(argc, argv, "b:d:h:H:W:L:i:w:l:o:O:r:acelmxyzps1238DT")) != -1) 194 switch (c) { 195 case 'b': 196 bottommargin = atof(optarg); 197 break; 198 case 'c': 199 centered = 1; 200 break; 201 case 'd': 202 dirnum = atoi(optarg); 203 break; 204 case 'D': 205 PSduplex = TRUE; 206 break; 207 case 'i': 208 interpolate = atoi(optarg) ? TRUE:FALSE; 209 break; 210 case 'T': 211 PStumble = TRUE; 212 break; 213 case 'e': 214 PSavoiddeadzone = FALSE; 215 generateEPSF = TRUE; 216 break; 217 case 'h': 218 pageHeight = atof(optarg); 219 break; 220 case 'H': 221 maxPageHeight = atof(optarg); 222 if (pageHeight==0) pageHeight = maxPageHeight; 223 break; 224 case 'W': 225 maxPageWidth = atof(optarg); 226 if (pageWidth==0) pageWidth = maxPageWidth; 227 break; 228 case 'L': 229 splitOverlap = atof(optarg); 230 break; 231 case 'm': 232 useImagemask = TRUE; 233 break; 234 case 'o': 235 diroff = (uint32) strtoul(optarg, NULL, 0); 236 break; 237 case 'O': /* XXX too bad -o is already taken */ 238 output = fopen(optarg, "w"); 239 if (output == NULL) { 240 fprintf(stderr, 241 "%s: %s: Cannot open output file.\n", 242 argv[0], optarg); 243 exit(-2); 244 } 245 break; 246 case 'l': 247 leftmargin = atof(optarg); 248 break; 249 case 'a': 250 printAll = TRUE; 251 /* fall thru... */ 252 case 'p': 253 generateEPSF = FALSE; 254 break; 255 case 'r': 256 rotate = TRUE; 257 if (strcmp (optarg, "auto") == 0) 258 rotation = 0; 259 else 260 rotation = atoi(optarg); 261 switch (rotation) 262 { 263 case 0: 264 case 90: 265 case 180: 266 case 270: 267 break; 268 default: 269 fprintf (stderr, "Rotation angle must be 90, 180, 270 (degrees ccw) or auto\n"); 270 exit (-2); 271 } 272 break; 273 case 's': 274 printAll = FALSE; 275 break; 276 case 'w': 277 pageWidth = atof(optarg); 278 break; 279 case 'z': 280 PSavoiddeadzone = FALSE; 281 break; 282 case '1': 283 level2 = FALSE; 284 level3 = FALSE; 285 ascii85 = FALSE; 286 break; 287 case '2': 288 level2 = TRUE; 289 ascii85 = TRUE; /* default to yes */ 290 break; 291 case '3': 292 level3 = TRUE; 293 ascii85 = TRUE; /* default to yes */ 294 break; 295 case '8': 296 ascii85 = FALSE; 297 break; 298 case 'x': 299 res_unit = RESUNIT_CENTIMETER; 300 break; 301 case 'y': 302 res_unit = RESUNIT_INCH; 303 break; 304 case '?': 305 usage(-1); 306 } 307 for (; argc - optind > 0; optind++) { 308 TIFF* tif = TIFFOpen(filename = argv[optind], "r"); 309 if (tif != NULL) { 310 if (dirnum != -1 311 && !TIFFSetDirectory(tif, (tdir_t)dirnum)) 312 return (-1); 313 else if (diroff != 0 && 314 !TIFFSetSubDirectory(tif, diroff)) 315 return (-1); 316 np = TIFF2PS(output, tif, pageWidth, pageHeight, 317 leftmargin, bottommargin, centered); 318 TIFFClose(tif); 319 } 320 } 321 if (np) 322 PSTail(output, np); 323 else 324 usage(-1); 325 if (output != stdout) 326 fclose(output); 327 return (0); 328 } 329 330 static uint16 samplesperpixel; 331 static uint16 bitspersample; 332 static uint16 planarconfiguration; 333 static uint16 photometric; 334 static uint16 compression; 335 static uint16 extrasamples; 336 static int alpha; 337 338 static int 339 checkImage(TIFF* tif) 340 { 341 switch (photometric) { 342 case PHOTOMETRIC_YCBCR: 343 if ((compression == COMPRESSION_JPEG || compression == COMPRESSION_OJPEG) 344 && planarconfiguration == PLANARCONFIG_CONTIG) { 345 /* can rely on libjpeg to convert to RGB */ 346 TIFFSetField(tif, TIFFTAG_JPEGCOLORMODE, 347 JPEGCOLORMODE_RGB); 348 photometric = PHOTOMETRIC_RGB; 349 } else { 350 if (level2 || level3) 351 break; 352 TIFFError(filename, "Can not handle image with %s", 353 "PhotometricInterpretation=YCbCr"); 354 return (0); 355 } 356 /* fall thru... */ 357 case PHOTOMETRIC_RGB: 358 if (alpha && bitspersample != 8) { 359 TIFFError(filename, 360 "Can not handle %d-bit/sample RGB image with alpha", 361 bitspersample); 362 return (0); 363 } 364 /* fall thru... */ 365 case PHOTOMETRIC_SEPARATED: 366 case PHOTOMETRIC_PALETTE: 367 case PHOTOMETRIC_MINISBLACK: 368 case PHOTOMETRIC_MINISWHITE: 369 break; 370 case PHOTOMETRIC_LOGL: 371 case PHOTOMETRIC_LOGLUV: 372 if (compression != COMPRESSION_SGILOG && 373 compression != COMPRESSION_SGILOG24) { 374 TIFFError(filename, 375 "Can not handle %s data with compression other than SGILog", 376 (photometric == PHOTOMETRIC_LOGL) ? 377 "LogL" : "LogLuv" 378 ); 379 return (0); 380 } 381 /* rely on library to convert to RGB/greyscale */ 382 TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_8BIT); 383 photometric = (photometric == PHOTOMETRIC_LOGL) ? 384 PHOTOMETRIC_MINISBLACK : PHOTOMETRIC_RGB; 385 bitspersample = 8; 386 break; 387 case PHOTOMETRIC_CIELAB: 388 /* fall thru... */ 389 default: 390 TIFFError(filename, 391 "Can not handle image with PhotometricInterpretation=%d", 392 photometric); 393 return (0); 394 } 395 switch (bitspersample) { 396 case 1: case 2: 397 case 4: case 8: 398 case 16: 399 break; 400 default: 401 TIFFError(filename, "Can not handle %d-bit/sample image", 402 bitspersample); 403 return (0); 404 } 405 if (planarconfiguration == PLANARCONFIG_SEPARATE && extrasamples > 0) 406 TIFFWarning(filename, "Ignoring extra samples"); 407 return (1); 408 } 409 410 #define PS_UNIT_SIZE 72.0F 411 #define PSUNITS(npix,res) ((npix) * (PS_UNIT_SIZE / (res))) 412 413 static char RGBcolorimage[] = "\ 414 /bwproc {\n\ 415 rgbproc\n\ 416 dup length 3 idiv string 0 3 0\n\ 417 5 -1 roll {\n\ 418 add 2 1 roll 1 sub dup 0 eq {\n\ 419 pop 3 idiv\n\ 420 3 -1 roll\n\ 421 dup 4 -1 roll\n\ 422 dup 3 1 roll\n\ 423 5 -1 roll put\n\ 424 1 add 3 0\n\ 425 } { 2 1 roll } ifelse\n\ 426 } forall\n\ 427 pop pop pop\n\ 428 } def\n\ 429 /colorimage where {pop} {\n\ 430 /colorimage {pop pop /rgbproc exch def {bwproc} image} bind def\n\ 431 } ifelse\n\ 432 "; 433 434 /* 435 * Adobe Photoshop requires a comment line of the form: 436 * 437 * %ImageData: <cols> <rows> <depth> <main channels> <pad channels> 438 * <block size> <1 for binary|2 for hex> "data start" 439 * 440 * It is claimed to be part of some future revision of the EPS spec. 441 */ 442 static void 443 PhotoshopBanner(FILE* fd, uint32 w, uint32 h, int bs, int nc, char* startline) 444 { 445 fprintf(fd, "%%ImageData: %ld %ld %d %d 0 %d 2 \"", 446 (long) w, (long) h, bitspersample, nc, bs); 447 fprintf(fd, startline, nc); 448 fprintf(fd, "\"\n"); 449 } 450 451 /* 452 * pw : image width in pixels 453 * ph : image height in pixels 454 * pprw : image width in PS units (72 dpi) 455 * pprh : image height in PS units (72 dpi) 456 */ 457 static void 458 setupPageState(TIFF* tif, uint32* pw, uint32* ph, double* pprw, double* pprh) 459 { 460 float xres = 0.0F, yres = 0.0F; 461 462 TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, pw); 463 TIFFGetField(tif, TIFFTAG_IMAGELENGTH, ph); 464 if (res_unit == 0) 465 TIFFGetFieldDefaulted(tif, TIFFTAG_RESOLUTIONUNIT, &res_unit); 466 /* 467 * Calculate printable area. 468 */ 469 if (!TIFFGetField(tif, TIFFTAG_XRESOLUTION, &xres) 470 || fabs(xres) < 0.0000001) 471 xres = PS_UNIT_SIZE; 472 if (!TIFFGetField(tif, TIFFTAG_YRESOLUTION, &yres) 473 || fabs(yres) < 0.0000001) 474 yres = PS_UNIT_SIZE; 475 switch (res_unit) { 476 case RESUNIT_CENTIMETER: 477 xres *= 2.54F, yres *= 2.54F; 478 break; 479 case RESUNIT_INCH: 480 break; 481 case RESUNIT_NONE: 482 default: 483 /* 484 * check that the resolution is not inches before scaling it 485 */ 486 if (xres != PS_UNIT_SIZE || yres != PS_UNIT_SIZE) 487 xres *= PS_UNIT_SIZE, yres *= PS_UNIT_SIZE; 488 break; 489 } 490 *pprh = PSUNITS(*ph, yres); 491 *pprw = PSUNITS(*pw, xres); 492 } 493 494 static int 495 isCCITTCompression(TIFF* tif) 496 { 497 uint16 compress; 498 TIFFGetField(tif, TIFFTAG_COMPRESSION, &compress); 499 return (compress == COMPRESSION_CCITTFAX3 || 500 compress == COMPRESSION_CCITTFAX4 || 501 compress == COMPRESSION_CCITTRLE || 502 compress == COMPRESSION_CCITTRLEW); 503 } 504 505 static tsize_t tf_bytesperrow; 506 static tsize_t ps_bytesperrow; 507 static tsize_t tf_rowsperstrip; 508 static tsize_t tf_numberstrips; 509 static char *hex = "0123456789abcdef"; 510 511 /* 512 * imagewidth & imageheight are 1/72 inches 513 * pagewidth & pageheight are inches 514 */ 515 int 516 PlaceImage(TIFF *tif, FILE *fp, int *npages, uint32 w, uint32 h, 517 double pagewidth, double pageheight, 518 double imagewidth, double imageheight, 519 int splitpage, double lm, double bm, int cnt) 520 { 521 int i = 0; 522 int ximages = 0; 523 int splitaxis = 0; 524 double xtran = 0; 525 double ytran = 0; 526 double xscale = 1; 527 double yscale = 1; 528 double left_margin = 0; 529 double bottom_margin = 0; 530 double left_offset = lm * PS_UNIT_SIZE; 531 double bottom_offset = bm * PS_UNIT_SIZE; 532 double splitwidth = 0; 533 double splitheight = 0; 534 double subimageheight = 0; 535 double subimagewidth = 0; 536 double overlap = 0; 537 double overlapspace = 0; 538 539 pagewidth *= PS_UNIT_SIZE; 540 pageheight *= PS_UNIT_SIZE; 541 542 splitheight = maxPageHeight * PS_UNIT_SIZE; 543 splitwidth = maxPageWidth * PS_UNIT_SIZE; 544 overlap = splitOverlap * PS_UNIT_SIZE; 545 /* These have to be mutually exclusive to maintain the aspect ratio */ 546 if (splitheight != 0) 547 splitaxis = VERTICAL; 548 else { 549 if (splitwidth != 0) 550 splitaxis = HORIZONTAL; 551 else { 552 fprintf (stderr, "You must specify either a maximum page height or width\n"); 553 return (0); 554 } 555 } 556 557 if (splitaxis == VERTICAL) { 558 if (imageheight <= splitheight) { 559 /* Simple case, no splitting or scaling for image height */ 560 yscale = imageheight; 561 ytran = pageheight - imageheight; 562 } else { /* imageheight > splitheight */ 563 subimageheight = imageheight - ((splitheight - overlap) * splitpage); 564 565 yscale = imageheight * (pageheight / splitheight); 566 ytran = pageheight - subimageheight * (pageheight / splitheight); 567 568 if (subimageheight > splitheight) { 569 splitpage++; 570 } else { 571 splitpage = 0; 572 } 573 } 574 bottom_offset += ytran / (cnt?2:1); 575 left_margin = left_offset / (cnt ? 2 : 1); 576 /* 577 * WIDTH: We can't rescale height based on width so we need to make multiple 578 * pages from each horizontal segment if the image is wider than pagewidth 579 */ 580 581 ximages = (int) ceil (imagewidth / pagewidth); 582 overlapspace = (ximages - 1) * overlap; 583 if (((imagewidth + overlapspace) * (pageheight / splitheight)) > (ximages * pagewidth)) { 584 ximages++; 585 overlapspace += overlap; 586 } 587 xscale = (imagewidth + overlapspace) * (pageheight / splitheight); 588 if (imagewidth <= pagewidth) { 589 left_offset = left_margin; 590 bottom_offset = bottom_margin; 591 fprintf(fp, "%f %f translate\n", left_offset, bottom_offset); 592 fprintf(fp, "%f %f scale\n", xscale, yscale); 593 } else { 594 for (i = 0; i < ximages; i++) { 595 xtran = i * (pagewidth - ((i > 0) ? overlap : 0)); 596 left_offset = -xtran + left_margin; 597 598 fprintf(fp, "%f %f translate\n", left_offset, bottom_offset); 599 fprintf(fp, "%f %f scale\n", xscale, yscale); 600 601 if ( i < (ximages - 1)) { 602 PSpage(fp, tif, w, h); 603 fprintf(fp, "end\n"); 604 fprintf(fp, "grestore\n"); 605 fprintf(fp, "showpage\n"); 606 (*npages)++; 607 fprintf(fp, "%%%%Page: %d %d\n", (*npages), (*npages)); 608 fprintf(fp, "gsave\n"); 609 fprintf(fp, "100 dict begin\n"); 610 } 611 } 612 } 613 } else { /* splitaxis is HORIZONTAL */ 614 ximages = (int) ceil (imagewidth / splitwidth); 615 overlapspace = (ximages - 1) * overlap; 616 if (((imagewidth + overlapspace) * (pagewidth / splitwidth)) > (ximages * pagewidth)) { 617 ximages++; 618 overlapspace += overlap; 619 } 620 if (ximages == 1) { 621 /* Simple case, no splitting or scaling for image width */ 622 xscale = imagewidth; 623 xtran = 0; 624 splitpage = 0; 625 } else { 626 subimagewidth = imagewidth - ((splitwidth - overlap) * splitpage); 627 628 xscale = imagewidth * (pagewidth / splitwidth); 629 xtran = imagewidth - (subimagewidth * (pagewidth / splitwidth)); 630 631 splitheight = pageheight; 632 subimageheight = imageheight - ((splitheight - overlap) * splitpage); 633 yscale = (imageheight + overlapspace); 634 ytran = pageheight - subimageheight + (overlapspace * (pagewidth / splitwidth)); 635 636 if (subimageheight > splitheight) { 637 splitpage++; 638 } else { 639 splitpage = 0; 640 } 641 } 642 bottom_margin = bottom_offset / (cnt ? 2 : 1); 643 bottom_offset = bottom_margin + ytran; 644 left_margin = left_offset / (cnt ? 2 : 1); 645 if (imagewidth <= pagewidth) { 646 left_offset = left_margin; 647 bottom_offset = bottom_margin; 648 fprintf(fp, "%f %f translate\n", left_offset, bottom_offset); 649 fprintf(fp, "%f %f scale\n", xscale, yscale); 650 } else { 651 for (i = 0; i < ximages; i++) { 652 xtran = i * (pagewidth - ((i > 0) ? overlap : 0)); 653 left_offset = left_margin - xtran; 654 fprintf(fp, "%f %f translate\n", left_offset, bottom_offset); 655 fprintf(fp, "%f %f scale\n", xscale, yscale); 656 if ( i < (ximages - 1)) { 657 PSpage(fp, tif, w, h); 658 fprintf(fp, "end\n"); 659 fprintf(fp, "grestore\n"); 660 fprintf(fp, "showpage\n"); 661 (*npages)++; 662 fprintf(fp, "%%%%Page: %d %d\n", (*npages), (*npages)); 663 fprintf(fp, "gsave\n"); 664 fprintf(fp, "100 dict begin\n"); 665 } 666 } 667 } 668 } 669 670 if (rotate) 671 { 672 if (rotation == 180 ) 673 { 674 fprintf(fp, "%f %f translate\n", left_offset, bottom_offset); 675 fprintf(fp, "%f %f scale\n", xscale, yscale); 676 } 677 else 678 { 679 fprintf(fp, "%f %f translate\n", bottom_offset, left_offset); 680 fprintf(fp, "%f %f scale\n", yscale, xscale); 681 } 682 fprintf (fp, "1 1 translate %d rotate\n", rotation); 683 } 684 685 return splitpage; 686 } 687 688 /* returns the sequence number of the page processed */ 689 int 690 TIFF2PS(FILE* fd, TIFF* tif, 691 double pw, double ph, double lm, double bm, int cnt) 692 { 693 uint32 w = 0, h = 0; 694 float ox, oy; 695 double maxsource, maxtarget; /* Used for auto rotations */ 696 double hcenter, vcenter; /* Used for centering */ 697 double prw, prh; /* Original Image width and height in Postscript points */ 698 double psw, psh; /* Scaled image width and height in Postscript points */ 699 double xscale = 1.0, yscale = 1.0, scale = 1.0; 700 double left_offset = lm * PS_UNIT_SIZE; 701 double bottom_offset = bm * PS_UNIT_SIZE; 702 uint32 subfiletype; 703 uint16* sampleinfo; 704 static int npages = 0; 705 int split; 706 707 if (!TIFFGetField(tif, TIFFTAG_XPOSITION, &ox)) 708 ox = 0; 709 if (!TIFFGetField(tif, TIFFTAG_YPOSITION, &oy)) 710 oy = 0; 711 do { 712 tf_numberstrips = TIFFNumberOfStrips(tif); 713 TIFFGetFieldDefaulted(tif, TIFFTAG_ROWSPERSTRIP, 714 &tf_rowsperstrip); 715 setupPageState(tif, &w, &h, &prw, &prh); 716 if (pw != 0) { 717 psw = pw * PS_UNIT_SIZE; 718 if (res_unit == RESUNIT_CENTIMETER) 719 psw *= 2.54F; 720 } 721 else 722 psw = prw; 723 724 if (ph != 0) { 725 psh = ph * PS_UNIT_SIZE; 726 if (res_unit == RESUNIT_CENTIMETER) 727 psh *= 2.54F; 728 } 729 else 730 psh = prh; 731 732 /* auto rotate for best fit */ 733 if (rotate && rotation == 0) { 734 maxsource = (prw >= prh) ? prw : prh; 735 maxtarget = (psw >= psh) ? psw : psh; 736 if (((maxsource == prw) && (maxtarget != psw)) || 737 ((maxsource == prh) && (maxtarget != psh))) { 738 rotation = 90; 739 } 740 } 741 742 /* scaling depends on rotation and new page size */ 743 switch (rotation) { 744 case 0: 745 case 180: 746 xscale = (psw - left_offset)/prw; 747 yscale = (psh - bottom_offset)/prh; 748 if (!npages) 749 PSHead(fd, tif, w, h, psw, psh, ox, oy); 750 break; 751 case 90: 752 case 270: 753 xscale = (psw - bottom_offset) /prh; 754 yscale = (psh - left_offset) /prw; 755 if (!npages) 756 PSHead(fd, tif, w, h, psh, psw, oy, ox); 757 break; 758 } 759 TIFFGetFieldDefaulted(tif, TIFFTAG_BITSPERSAMPLE, 760 &bitspersample); 761 TIFFGetFieldDefaulted(tif, TIFFTAG_SAMPLESPERPIXEL, 762 &samplesperpixel); 763 TIFFGetFieldDefaulted(tif, TIFFTAG_PLANARCONFIG, 764 &planarconfiguration); 765 TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression); 766 TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, 767 &extrasamples, &sampleinfo); 768 alpha = (extrasamples == 1 && 769 sampleinfo[0] == EXTRASAMPLE_ASSOCALPHA); 770 if (!TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric)) { 771 switch (samplesperpixel - extrasamples) { 772 case 1: 773 if (isCCITTCompression(tif)) 774 photometric = PHOTOMETRIC_MINISWHITE; 775 else 776 photometric = PHOTOMETRIC_MINISBLACK; 777 break; 778 case 3: 779 photometric = PHOTOMETRIC_RGB; 780 break; 781 case 4: 782 photometric = PHOTOMETRIC_SEPARATED; 783 break; 784 } 785 } 786 if (checkImage(tif)) { 787 tf_bytesperrow = TIFFScanlineSize(tif); 788 npages++; 789 fprintf(fd, "%%%%Page: %d %d\n", npages, npages); 790 if (!generateEPSF && ( level2 || level3 )) { 791 fprintf(fd, 792 "1 dict begin /PageSize [ %f %f ] def currentdict end setpagedevice\n", 793 psw, psh); 794 fputs( 795 "<<\n /Policies <<\n /PageSize 3\n >>\n>> setpagedevice\n", 796 fd); 797 } 798 fprintf(fd, "gsave\n"); 799 fprintf(fd, "100 dict begin\n"); 800 /* N.B. Setting maxPageHeight also sets ph if not set explicitly */ 801 if (pw != 0 || ph != 0) { 802 if (maxPageHeight || maxPageWidth) { /* used -H or -W options */ 803 split = PlaceImage(tif,fd,&npages,w,h,pw,ph,prw,prh, 804 0,lm,bm,cnt); 805 while( split ) { 806 PSpage(fd, tif, w, h); 807 fprintf(fd, "end\n"); 808 fprintf(fd, "grestore\n"); 809 fprintf(fd, "showpage\n"); 810 npages++; 811 fprintf(fd, "%%%%Page: %d %d\n", 812 npages, npages); 813 fprintf(fd, "gsave\n"); 814 fprintf(fd, "100 dict begin\n"); 815 split = PlaceImage(tif,fd,&npages,w,h,pw,ph,prw,prh, 816 split,lm,bm,cnt); 817 } 818 } 819 else { 820 /* NB: maintain image aspect ratio */ 821 scale = (xscale < yscale) ? xscale : yscale; 822 if (scale > 1.0) 823 scale = 1.0; 824 825 /* Adjust offsets for centering */ 826 if (cnt) { 827 switch (rotation) { 828 case 90: 829 case 270: 830 hcenter = (psw - prh * scale) / 2; 831 vcenter = (psh - prw * scale) / 2; 832 break; 833 case 0: 834 case 180: 835 default: 836 hcenter = (psw - prw * scale) / 2; 837 vcenter = (psh - prh * scale) / 2; 838 break; 839 } 840 } 841 else 842 hcenter = 0.0, vcenter = 0.0; 843 if (cnt) 844 fprintf (fd, "%f %f translate\n", hcenter, vcenter); 845 switch (rotation) { 846 case 0: 847 fprintf (fd, "%f %f scale\n", prw * scale, prh * scale); 848 break; 849 case 90: 850 fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", prh * scale, prw * scale); 851 break; 852 case 180: 853 fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", prw * scale, prh * scale); 854 break; 855 case 270: 856 fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", prh * scale, prw * scale); 857 break; 858 default: 859 fprintf (stderr, "Unsupported angle. No rotation\n"); 860 fprintf (fd, "%f %f scale\n", prw * scale, prh * scale); 861 break; 862 } 863 } 864 } else { 865 if (rotate) 866 { 867 /* Width and height have already been enchanged for 90/270 rotations */ 868 switch (rotation) { 869 case 0: 870 fprintf (fd, "%f %f scale\n", prw, prh); 871 case 90: 872 fprintf (fd, "%f %f scale\n1 0 translate 90 rotate\n", prw, prh); 873 break; 874 case 180: 875 fprintf (fd, "%f %f scale\n1 1 translate 180 rotate\n", prw, prh); 876 break; 877 case 270: 878 fprintf (fd, "%f %f scale\n0 1 translate 270 rotate\n", prw, prh); 879 break; 880 default: 881 fprintf (stderr, "Unsupported angle. No rotation\n"); 882 fprintf( fd, "%f %f scale\n", prw, prh); 883 break; 884 } 885 } 886 else 887 { 888 /* fprintf (stderr, "No rotation\n"); */ 889 fprintf (fd, "%f %f scale\n", prw, prh); 890 } 891 } 892 PSpage(fd, tif, w, h); 893 fprintf(fd, "end\n"); 894 fprintf(fd, "grestore\n"); 895 fprintf(fd, "showpage\n"); 896 } 897 if (generateEPSF) 898 break; 899 TIFFGetFieldDefaulted(tif, TIFFTAG_SUBFILETYPE, &subfiletype); 900 } while (((subfiletype & FILETYPE_PAGE) || printAll) && 901 TIFFReadDirectory(tif)); 902 903 return(npages); 904 } 905 906 static char DuplexPreamble[] = "\ 907 %%BeginFeature: *Duplex True\n\ 908 systemdict begin\n\ 909 /languagelevel where { pop languagelevel } { 1 } ifelse\n\ 910 2 ge { 1 dict dup /Duplex true put setpagedevice }\n\ 911 { statusdict /setduplex known { statusdict begin setduplex true end } if\n\ 912 } ifelse\n\ 913 end\n\ 914 %%EndFeature\n\ 915 "; 916 917 static char TumblePreamble[] = "\ 918 %%BeginFeature: *Tumble True\n\ 919 systemdict begin\n\ 920 /languagelevel where { pop languagelevel } { 1 } ifelse\n\ 921 2 ge { 1 dict dup /Tumble true put setpagedevice }\n\ 922 { statusdict /settumble known { statusdict begin true settumble end } if\n\ 923 } ifelse\n\ 924 end\n\ 925 %%EndFeature\n\ 926 "; 927 928 static char AvoidDeadZonePreamble[] = "\ 929 gsave newpath clippath pathbbox grestore\n\ 930 4 2 roll 2 copy translate\n\ 931 exch 3 1 roll sub 3 1 roll sub exch\n\ 932 currentpagedevice /PageSize get aload pop\n\ 933 exch 3 1 roll div 3 1 roll div abs exch abs\n\ 934 2 copy gt { exch } if pop\n\ 935 dup 1 lt { dup scale } { pop } ifelse\n\ 936 "; 937 938 void 939 PSHead(FILE *fd, TIFF *tif, uint32 w, uint32 h, 940 double pw, double ph, double ox, double oy) 941 { 942 time_t t; 943 944 (void) tif; (void) w; (void) h; 945 t = time(0); 946 fprintf(fd, "%%!PS-Adobe-3.0%s\n", generateEPSF ? " EPSF-3.0" : ""); 947 fprintf(fd, "%%%%Creator: tiff2ps\n"); 948 fprintf(fd, "%%%%Title: %s\n", filename); 949 fprintf(fd, "%%%%CreationDate: %s", ctime(&t)); 950 fprintf(fd, "%%%%DocumentData: Clean7Bit\n"); 951 fprintf(fd, "%%%%Origin: %ld %ld\n", (long) ox, (long) oy); 952 /* NB: should use PageBoundingBox */ 953 if (rotate && (rotation == 90 || rotation == 270)) 954 fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n", 955 (long) ceil(ph), (long) ceil(pw)); 956 else 957 fprintf(fd, "%%%%BoundingBox: 0 0 %ld %ld\n", 958 (long) ceil(pw), (long) ceil(ph)); 959 960 fprintf(fd, "%%%%LanguageLevel: %d\n", (level3 ? 3 : (level2 ? 2 : 1))); 961 fprintf(fd, "%%%%Pages: (atend)\n"); 962 fprintf(fd, "%%%%EndComments\n"); 963 fprintf(fd, "%%%%BeginSetup\n"); 964 if (PSduplex) 965 fprintf(fd, "%s", DuplexPreamble); 966 if (PStumble) 967 fprintf(fd, "%s", TumblePreamble); 968 if (PSavoiddeadzone && (level2 || level3)) 969 fprintf(fd, "%s", AvoidDeadZonePreamble); 970 fprintf(fd, "%%%%EndSetup\n"); 971 } 972 973 void 974 PSTail(FILE *fd, int npages) 975 { 976 fprintf(fd, "%%%%Trailer\n"); 977 fprintf(fd, "%%%%Pages: %d\n", npages); 978 fprintf(fd, "%%%%EOF\n"); 979 } 980 981 static int 982 checkcmap(TIFF* tif, int n, uint16* r, uint16* g, uint16* b) 983 { 984 (void) tif; 985 while (n-- > 0) 986 if (*r++ >= 256 || *g++ >= 256 || *b++ >= 256) 987 return (16); 988 TIFFWarning(filename, "Assuming 8-bit colormap"); 989 return (8); 990 } 991 992 static void 993 PS_Lvl2colorspace(FILE* fd, TIFF* tif) 994 { 995 uint16 *rmap, *gmap, *bmap; 996 int i, num_colors; 997 const char * colorspace_p; 998 999 switch ( photometric ) 1000 { 1001 case PHOTOMETRIC_SEPARATED: 1002 colorspace_p = "CMYK"; 1003 break; 1004 1005 case PHOTOMETRIC_RGB: 1006 colorspace_p = "RGB"; 1007 break; 1008 1009 default: 1010 colorspace_p = "Gray"; 1011 } 1012 1013 /* 1014 * Set up PostScript Level 2 colorspace according to 1015 * section 4.8 in the PostScript refenence manual. 1016 */ 1017 fputs("% PostScript Level 2 only.\n", fd); 1018 if (photometric != PHOTOMETRIC_PALETTE) { 1019 if (photometric == PHOTOMETRIC_YCBCR) { 1020 /* MORE CODE HERE */ 1021 } 1022 fprintf(fd, "/Device%s setcolorspace\n", colorspace_p ); 1023 return; 1024 } 1025 1026 /* 1027 * Set up an indexed/palette colorspace 1028 */ 1029 num_colors = (1 << bitspersample); 1030 if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { 1031 TIFFError(filename, 1032 "Palette image w/o \"Colormap\" tag"); 1033 return; 1034 } 1035 if (checkcmap(tif, num_colors, rmap, gmap, bmap) == 16) { 1036 /* 1037 * Convert colormap to 8-bits values. 1038 */ 1039 #define CVT(x) (((x) * 255) / ((1L<<16)-1)) 1040 for (i = 0; i < num_colors; i++) { 1041 rmap[i] = CVT(rmap[i]); 1042 gmap[i] = CVT(gmap[i]); 1043 bmap[i] = CVT(bmap[i]); 1044 } 1045 #undef CVT 1046 } 1047 fprintf(fd, "[ /Indexed /DeviceRGB %d", num_colors - 1); 1048 if (ascii85) { 1049 Ascii85Init(); 1050 fputs("\n<~", fd); 1051 ascii85breaklen -= 2; 1052 } else 1053 fputs(" <", fd); 1054 for (i = 0; i < num_colors; i++) { 1055 if (ascii85) { 1056 Ascii85Put((unsigned char)rmap[i], fd); 1057 Ascii85Put((unsigned char)gmap[i], fd); 1058 Ascii85Put((unsigned char)bmap[i], fd); 1059 } else { 1060 fputs((i % 8) ? " " : "\n ", fd); 1061 fprintf(fd, "%02x%02x%02x", 1062 rmap[i], gmap[i], bmap[i]); 1063 } 1064 } 1065 if (ascii85) 1066 Ascii85Flush(fd); 1067 else 1068 fputs(">\n", fd); 1069 fputs("] setcolorspace\n", fd); 1070 } 1071 1072 static int 1073 PS_Lvl2ImageDict(FILE* fd, TIFF* tif, uint32 w, uint32 h) 1074 { 1075 int use_rawdata; 1076 uint32 tile_width, tile_height; 1077 uint16 predictor, minsamplevalue, maxsamplevalue; 1078 int repeat_count; 1079 char im_h[64], im_x[64], im_y[64]; 1080 char * imageOp = "image"; 1081 1082 if ( useImagemask && (bitspersample == 1) ) 1083 imageOp = "imagemask"; 1084 1085 (void)strcpy(im_x, "0"); 1086 (void)sprintf(im_y, "%lu", (long) h); 1087 (void)sprintf(im_h, "%lu", (long) h); 1088 tile_width = w; 1089 tile_height = h; 1090 if (TIFFIsTiled(tif)) { 1091 repeat_count = TIFFNumberOfTiles(tif); 1092 TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width); 1093 TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height); 1094 if (tile_width > w || tile_height > h || 1095 (w % tile_width) != 0 || (h % tile_height != 0)) { 1096 /* 1097 * The tiles does not fit image width and height. 1098 * Set up a clip rectangle for the image unit square. 1099 */ 1100 fputs("0 0 1 1 rectclip\n", fd); 1101 } 1102 if (tile_width < w) { 1103 fputs("/im_x 0 def\n", fd); 1104 (void)strcpy(im_x, "im_x neg"); 1105 } 1106 if (tile_height < h) { 1107 fputs("/im_y 0 def\n", fd); 1108 (void)sprintf(im_y, "%lu im_y sub", (unsigned long) h); 1109 } 1110 } else { 1111 repeat_count = tf_numberstrips; 1112 tile_height = tf_rowsperstrip; 1113 if (tile_height > h) 1114 tile_height = h; 1115 if (repeat_count > 1) { 1116 fputs("/im_y 0 def\n", fd); 1117 fprintf(fd, "/im_h %lu def\n", 1118 (unsigned long) tile_height); 1119 (void)strcpy(im_h, "im_h"); 1120 (void)sprintf(im_y, "%lu im_y sub", (unsigned long) h); 1121 } 1122 } 1123 1124 /* 1125 * Output start of exec block 1126 */ 1127 fputs("{ % exec\n", fd); 1128 1129 if (repeat_count > 1) 1130 fprintf(fd, "%d { %% repeat\n", repeat_count); 1131 1132 /* 1133 * Output filter options and image dictionary. 1134 */ 1135 if (ascii85) 1136 fputs(" /im_stream currentfile /ASCII85Decode filter def\n", 1137 fd); 1138 fputs(" <<\n", fd); 1139 fputs(" /ImageType 1\n", fd); 1140 fprintf(fd, " /Width %lu\n", (unsigned long) tile_width); 1141 /* 1142 * Workaround for some software that may crash when last strip 1143 * of image contains fewer number of scanlines than specified 1144 * by the `/Height' variable. So for stripped images with multiple 1145 * strips we will set `/Height' as `im_h', because one is 1146 * recalculated for each strip - including the (smaller) final strip. 1147 * For tiled images and images with only one strip `/Height' will 1148 * contain number of scanlines in tile (or image height in case of 1149 * one-stripped image). 1150 */ 1151 if (TIFFIsTiled(tif) || tf_numberstrips == 1) 1152 fprintf(fd, " /Height %lu\n", (unsigned long) tile_height); 1153 else 1154 fprintf(fd, " /Height im_h\n"); 1155 1156 if (planarconfiguration == PLANARCONFIG_SEPARATE && samplesperpixel > 1) 1157 fputs(" /MultipleDataSources true\n", fd); 1158 fprintf(fd, " /ImageMatrix [ %lu 0 0 %ld %s %s ]\n", 1159 (unsigned long) w, - (long)h, im_x, im_y); 1160 fprintf(fd, " /BitsPerComponent %d\n", bitspersample); 1161 fprintf(fd, " /Interpolate %s\n", interpolate ? "true" : "false"); 1162 1163 switch (samplesperpixel - extrasamples) { 1164 case 1: 1165 switch (photometric) { 1166 case PHOTOMETRIC_MINISBLACK: 1167 fputs(" /Decode [0 1]\n", fd); 1168 break; 1169 case PHOTOMETRIC_MINISWHITE: 1170 switch (compression) { 1171 case COMPRESSION_CCITTRLE: 1172 case COMPRESSION_CCITTRLEW: 1173 case COMPRESSION_CCITTFAX3: 1174 case COMPRESSION_CCITTFAX4: 1175 /* 1176 * Manage inverting with /Blackis1 flag 1177 * since there migth be uncompressed parts 1178 */ 1179 fputs(" /Decode [0 1]\n", fd); 1180 break; 1181 default: 1182 /* 1183 * ERROR... 1184 */ 1185 fputs(" /Decode [1 0]\n", fd); 1186 break; 1187 } 1188 break; 1189 case PHOTOMETRIC_PALETTE: 1190 TIFFGetFieldDefaulted(tif, TIFFTAG_MINSAMPLEVALUE, 1191 &minsamplevalue); 1192 TIFFGetFieldDefaulted(tif, TIFFTAG_MAXSAMPLEVALUE, 1193 &maxsamplevalue); 1194 fprintf(fd, " /Decode [%u %u]\n", 1195 minsamplevalue, maxsamplevalue); 1196 break; 1197 default: 1198 /* 1199 * ERROR ? 1200 */ 1201 fputs(" /Decode [0 1]\n", fd); 1202 break; 1203 } 1204 break; 1205 case 3: 1206 switch (photometric) { 1207 case PHOTOMETRIC_RGB: 1208 fputs(" /Decode [0 1 0 1 0 1]\n", fd); 1209 break; 1210 case PHOTOMETRIC_MINISWHITE: 1211 case PHOTOMETRIC_MINISBLACK: 1212 default: 1213 /* 1214 * ERROR?? 1215 */ 1216 fputs(" /Decode [0 1 0 1 0 1]\n", fd); 1217 break; 1218 } 1219 break; 1220 case 4: 1221 /* 1222 * ERROR?? 1223 */ 1224 fputs(" /Decode [0 1 0 1 0 1 0 1]\n", fd); 1225 break; 1226 } 1227 fputs(" /DataSource", fd); 1228 if (planarconfiguration == PLANARCONFIG_SEPARATE && 1229 samplesperpixel > 1) 1230 fputs(" [", fd); 1231 if (ascii85) 1232 fputs(" im_stream", fd); 1233 else 1234 fputs(" currentfile /ASCIIHexDecode filter", fd); 1235 1236 use_rawdata = TRUE; 1237 switch (compression) { 1238 case COMPRESSION_NONE: /* 1: uncompressed */ 1239 break; 1240 case COMPRESSION_CCITTRLE: /* 2: CCITT modified Huffman RLE */ 1241 case COMPRESSION_CCITTRLEW: /* 32771: #1 w/ word alignment */ 1242 case COMPRESSION_CCITTFAX3: /* 3: CCITT Group 3 fax encoding */ 1243 case COMPRESSION_CCITTFAX4: /* 4: CCITT Group 4 fax encoding */ 1244 fputs("\n\t<<\n", fd); 1245 if (compression == COMPRESSION_CCITTFAX3) { 1246 uint32 g3_options; 1247 1248 fputs("\t /EndOfLine true\n", fd); 1249 fputs("\t /EndOfBlock false\n", fd); 1250 if (!TIFFGetField(tif, TIFFTAG_GROUP3OPTIONS, 1251 &g3_options)) 1252 g3_options = 0; 1253 if (g3_options & GROUP3OPT_2DENCODING) 1254 fprintf(fd, "\t /K %s\n", im_h); 1255 if (g3_options & GROUP3OPT_UNCOMPRESSED) 1256 fputs("\t /Uncompressed true\n", fd); 1257 if (g3_options & GROUP3OPT_FILLBITS) 1258 fputs("\t /EncodedByteAlign true\n", fd); 1259 } 1260 if (compression == COMPRESSION_CCITTFAX4) { 1261 uint32 g4_options; 1262 1263 fputs("\t /K -1\n", fd); 1264 TIFFGetFieldDefaulted(tif, TIFFTAG_GROUP4OPTIONS, 1265 &g4_options); 1266 if (g4_options & GROUP4OPT_UNCOMPRESSED) 1267 fputs("\t /Uncompressed true\n", fd); 1268 } 1269 if (!(tile_width == w && w == 1728U)) 1270 fprintf(fd, "\t /Columns %lu\n", 1271 (unsigned long) tile_width); 1272 fprintf(fd, "\t /Rows %s\n", im_h); 1273 if (compression == COMPRESSION_CCITTRLE || 1274 compression == COMPRESSION_CCITTRLEW) { 1275 fputs("\t /EncodedByteAlign true\n", fd); 1276 fputs("\t /EndOfBlock false\n", fd); 1277 } 1278 if (photometric == PHOTOMETRIC_MINISBLACK) 1279 fputs("\t /BlackIs1 true\n", fd); 1280 fprintf(fd, "\t>> /CCITTFaxDecode filter"); 1281 break; 1282 case COMPRESSION_LZW: /* 5: Lempel-Ziv & Welch */ 1283 TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); 1284 if (predictor == 2) { 1285 fputs("\n\t<<\n", fd); 1286 fprintf(fd, "\t /Predictor %u\n", predictor); 1287 fprintf(fd, "\t /Columns %lu\n", 1288 (unsigned long) tile_width); 1289 fprintf(fd, "\t /Colors %u\n", samplesperpixel); 1290 fprintf(fd, "\t /BitsPerComponent %u\n", 1291 bitspersample); 1292 fputs("\t>>", fd); 1293 } 1294 fputs(" /LZWDecode filter", fd); 1295 break; 1296 case COMPRESSION_DEFLATE: /* 5: ZIP */ 1297 case COMPRESSION_ADOBE_DEFLATE: 1298 if ( level3 ) { 1299 TIFFGetFieldDefaulted(tif, TIFFTAG_PREDICTOR, &predictor); 1300 if (predictor > 1) { 1301 fprintf(fd, "\t %% PostScript Level 3 only."); 1302 fputs("\n\t<<\n", fd); 1303 fprintf(fd, "\t /Predictor %u\n", predictor); 1304 fprintf(fd, "\t /Columns %lu\n", 1305 (unsigned long) tile_width); 1306 fprintf(fd, "\t /Colors %u\n", samplesperpixel); 1307 fprintf(fd, "\t /BitsPerComponent %u\n", 1308 bitspersample); 1309 fputs("\t>>", fd); 1310 } 1311 fputs(" /FlateDecode filter", fd); 1312 } else { 1313 use_rawdata = FALSE ; 1314 } 1315 break; 1316 case COMPRESSION_PACKBITS: /* 32773: Macintosh RLE */ 1317 fputs(" /RunLengthDecode filter", fd); 1318 use_rawdata = TRUE; 1319 break; 1320 case COMPRESSION_OJPEG: /* 6: !6.0 JPEG */ 1321 case COMPRESSION_JPEG: /* 7: %JPEG DCT compression */ 1322 #ifdef notdef 1323 /* 1324 * Code not tested yet 1325 */ 1326 fputs(" /DCTDecode filter", fd); 1327 use_rawdata = TRUE; 1328 #else 1329 use_rawdata = FALSE; 1330 #endif 1331 break; 1332 case COMPRESSION_NEXT: /* 32766: NeXT 2-bit RLE */ 1333 case COMPRESSION_THUNDERSCAN: /* 32809: ThunderScan RLE */ 1334 case COMPRESSION_PIXARFILM: /* 32908: Pixar companded 10bit LZW */ 1335 case COMPRESSION_JBIG: /* 34661: ISO JBIG */ 1336 use_rawdata = FALSE; 1337 break; 1338 case COMPRESSION_SGILOG: /* 34676: SGI LogL or LogLuv */ 1339 case COMPRESSION_SGILOG24: /* 34677: SGI 24-bit LogLuv */ 1340 use_rawdata = FALSE; 1341 break; 1342 default: 1343 /* 1344 * ERROR... 1345 */ 1346 use_rawdata = FALSE; 1347 break; 1348 } 1349 if (planarconfiguration == PLANARCONFIG_SEPARATE && 1350 samplesperpixel > 1) { 1351 uint16 i; 1352 1353 /* 1354 * NOTE: This code does not work yet... 1355 */ 1356 for (i = 1; i < samplesperpixel; i++) 1357 fputs(" dup", fd); 1358 fputs(" ]", fd); 1359 } 1360 1361 fprintf( fd, "\n >> %s\n", imageOp ); 1362 if (ascii85) 1363 fputs(" im_stream status { im_stream flushfile } if\n", fd); 1364 if (repeat_count > 1) { 1365 if (tile_width < w) { 1366 fprintf(fd, " /im_x im_x %lu add def\n", 1367 (unsigned long) tile_width); 1368 if (tile_height < h) { 1369 fprintf(fd, " im_x %lu ge {\n", 1370 (unsigned long) w); 1371 fputs(" /im_x 0 def\n", fd); 1372 fprintf(fd, " /im_y im_y %lu add def\n", 1373 (unsigned long) tile_height); 1374 fputs(" } if\n", fd); 1375 } 1376 } 1377 if (tile_height < h) { 1378 if (tile_width >= w) { 1379 fprintf(fd, " /im_y im_y %lu add def\n", 1380 (unsigned long) tile_height); 1381 if (!TIFFIsTiled(tif)) { 1382 fprintf(fd, " /im_h %lu im_y sub", 1383 (unsigned long) h); 1384 fprintf(fd, " dup %lu gt { pop", 1385 (unsigned long) tile_height); 1386 fprintf(fd, " %lu } if def\n", 1387 (unsigned long) tile_height); 1388 } 1389 } 1390 } 1391 fputs("} repeat\n", fd); 1392 } 1393 /* 1394 * End of exec function 1395 */ 1396 fputs("}\n", fd); 1397 1398 return(use_rawdata); 1399 } 1400 1401 /* Flip the byte order of buffers with 16 bit samples */ 1402 static void 1403 PS_FlipBytes(unsigned char* buf, tsize_t count) 1404 { 1405 int i; 1406 unsigned char temp; 1407 1408 if (count <= 0 || bitspersample <= 8) { 1409 return; 1410 } 1411 1412 count--; 1413 1414 for (i = 0; i < count; i += 2) { 1415 temp = buf[i]; 1416 buf[i] = buf[i + 1]; 1417 buf[i + 1] = temp; 1418 } 1419 } 1420 1421 #define MAXLINE 36 1422 1423 int 1424 PS_Lvl2page(FILE* fd, TIFF* tif, uint32 w, uint32 h) 1425 { 1426 uint16 fillorder; 1427 int use_rawdata, tiled_image, breaklen = MAXLINE; 1428 uint32 chunk_no, num_chunks; 1429 uint64 *bc; 1430 unsigned char *buf_data, *cp; 1431 tsize_t chunk_size, byte_count; 1432 1433 #if defined( EXP_ASCII85ENCODER ) 1434 tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ 1435 uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ 1436 #endif 1437 1438 PS_Lvl2colorspace(fd, tif); 1439 use_rawdata = PS_Lvl2ImageDict(fd, tif, w, h); 1440 1441 /* See http://bugzilla.remotesensing.org/show_bug.cgi?id=80 */ 1442 #ifdef ENABLE_BROKEN_BEGINENDDATA 1443 fputs("%%BeginData:\n", fd); 1444 #endif 1445 fputs("exec\n", fd); 1446 1447 tiled_image = TIFFIsTiled(tif); 1448 if (tiled_image) { 1449 num_chunks = TIFFNumberOfTiles(tif); 1450 TIFFGetField(tif, TIFFTAG_TILEBYTECOUNTS, &bc); 1451 } else { 1452 num_chunks = TIFFNumberOfStrips(tif); 1453 TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); 1454 } 1455 1456 if (use_rawdata) { 1457 chunk_size = (tsize_t) bc[0]; 1458 for (chunk_no = 1; chunk_no < num_chunks; chunk_no++) 1459 if ((tsize_t) bc[chunk_no] > chunk_size) 1460 chunk_size = (tsize_t) bc[chunk_no]; 1461 } else { 1462 if (tiled_image) 1463 chunk_size = TIFFTileSize(tif); 1464 else 1465 chunk_size = TIFFStripSize(tif); 1466 } 1467 buf_data = (unsigned char *)_TIFFmalloc(chunk_size); 1468 if (!buf_data) { 1469 TIFFError(filename, "Can't alloc %lu bytes for %s.", 1470 (unsigned long) chunk_size, tiled_image ? "tiles" : "strips"); 1471 return(FALSE); 1472 } 1473 1474 #if defined( EXP_ASCII85ENCODER ) 1475 if ( ascii85 ) { 1476 /* 1477 * Allocate a buffer to hold the ASCII85 encoded data. Note 1478 * that it is allocated with sufficient room to hold the 1479 * encoded data (5*chunk_size/4) plus the EOD marker (+8) 1480 * and formatting line breaks. The line breaks are more 1481 * than taken care of by using 6*chunk_size/4 rather than 1482 * 5*chunk_size/4. 1483 */ 1484 1485 ascii85_p = _TIFFmalloc( (chunk_size+(chunk_size/2)) + 8 ); 1486 1487 if ( !ascii85_p ) { 1488 _TIFFfree( buf_data ); 1489 1490 TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); 1491 return ( FALSE ); 1492 } 1493 } 1494 #endif 1495 1496 TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); 1497 for (chunk_no = 0; chunk_no < num_chunks; chunk_no++) { 1498 if (ascii85) 1499 Ascii85Init(); 1500 else 1501 breaklen = MAXLINE; 1502 if (use_rawdata) { 1503 if (tiled_image) 1504 byte_count = TIFFReadRawTile(tif, chunk_no, 1505 buf_data, chunk_size); 1506 else 1507 byte_count = TIFFReadRawStrip(tif, chunk_no, 1508 buf_data, chunk_size); 1509 if (fillorder == FILLORDER_LSB2MSB) 1510 TIFFReverseBits(buf_data, byte_count); 1511 } else { 1512 if (tiled_image) 1513 byte_count = TIFFReadEncodedTile(tif, 1514 chunk_no, buf_data, 1515 chunk_size); 1516 else 1517 byte_count = TIFFReadEncodedStrip(tif, 1518 chunk_no, buf_data, 1519 chunk_size); 1520 } 1521 if (byte_count < 0) { 1522 TIFFError(filename, "Can't read %s %d.", 1523 tiled_image ? "tile" : "strip", chunk_no); 1524 if (ascii85) 1525 Ascii85Put('\0', fd); 1526 } 1527 /* 1528 * for 16 bits, the two bytes must be most significant 1529 * byte first 1530 */ 1531 if (bitspersample == 16 && !TIFFIsBigEndian(tif)) { 1532 PS_FlipBytes(buf_data, byte_count); 1533 } 1534 /* 1535 * For images with alpha, matte against a white background; 1536 * i.e. Cback * (1 - Aimage) where Cback = 1. We will fill the 1537 * lower part of the buffer with the modified values. 1538 * 1539 * XXX: needs better solution 1540 */ 1541 if (alpha) { 1542 int adjust, i, j = 0; 1543 int ncomps = samplesperpixel - extrasamples; 1544 for (i = 0; i < byte_count; i+=samplesperpixel) { 1545 adjust = 255 - buf_data[i + ncomps]; 1546 switch (ncomps) { 1547 case 1: 1548 buf_data[j++] = buf_data[i] + adjust; 1549 break; 1550 case 2: 1551 buf_data[j++] = buf_data[i] + adjust; 1552 buf_data[j++] = buf_data[i+1] + adjust; 1553 break; 1554 case 3: 1555 buf_data[j++] = buf_data[i] + adjust; 1556 buf_data[j++] = buf_data[i+1] + adjust; 1557 buf_data[j++] = buf_data[i+2] + adjust; 1558 break; 1559 } 1560 } 1561 byte_count -= j; 1562 } 1563 1564 if (ascii85) { 1565 #if defined( EXP_ASCII85ENCODER ) 1566 ascii85_l = Ascii85EncodeBlock(ascii85_p, 1, buf_data, byte_count ); 1567 1568 if ( ascii85_l > 0 ) 1569 fwrite( ascii85_p, ascii85_l, 1, fd ); 1570 #else 1571 for (cp = buf_data; byte_count > 0; byte_count--) 1572 Ascii85Put(*cp++, fd); 1573 #endif 1574 } 1575 else 1576 { 1577 for (cp = buf_data; byte_count > 0; byte_count--) { 1578 putc(hex[((*cp)>>4)&0xf], fd); 1579 putc(hex[(*cp)&0xf], fd); 1580 cp++; 1581 1582 if (--breaklen <= 0) { 1583 putc('\n', fd); 1584 breaklen = MAXLINE; 1585 } 1586 } 1587 } 1588 1589 if ( !ascii85 ) { 1590 if ( level2 || level3 ) 1591 putc( '>', fd ); 1592 putc('\n', fd); 1593 } 1594 #if !defined( EXP_ASCII85ENCODER ) 1595 else 1596 Ascii85Flush(fd); 1597 #endif 1598 } 1599 1600 #if defined( EXP_ASCII85ENCODER ) 1601 if ( ascii85_p ) 1602 _TIFFfree( ascii85_p ); 1603 #endif 1604 1605 _TIFFfree(buf_data); 1606 #ifdef ENABLE_BROKEN_BEGINENDDATA 1607 fputs("%%EndData\n", fd); 1608 #endif 1609 return(TRUE); 1610 } 1611 1612 void 1613 PSpage(FILE* fd, TIFF* tif, uint32 w, uint32 h) 1614 { 1615 char * imageOp = "image"; 1616 1617 if ( useImagemask && (bitspersample == 1) ) 1618 imageOp = "imagemask"; 1619 1620 if ((level2 || level3) && PS_Lvl2page(fd, tif, w, h)) 1621 return; 1622 ps_bytesperrow = tf_bytesperrow - (extrasamples * bitspersample / 8)*w; 1623 switch (photometric) { 1624 case PHOTOMETRIC_RGB: 1625 if (planarconfiguration == PLANARCONFIG_CONTIG) { 1626 fprintf(fd, "%s", RGBcolorimage); 1627 PSColorContigPreamble(fd, w, h, 3); 1628 PSDataColorContig(fd, tif, w, h, 3); 1629 } else { 1630 PSColorSeparatePreamble(fd, w, h, 3); 1631 PSDataColorSeparate(fd, tif, w, h, 3); 1632 } 1633 break; 1634 case PHOTOMETRIC_SEPARATED: 1635 /* XXX should emit CMYKcolorimage */ 1636 if (planarconfiguration == PLANARCONFIG_CONTIG) { 1637 PSColorContigPreamble(fd, w, h, 4); 1638 PSDataColorContig(fd, tif, w, h, 4); 1639 } else { 1640 PSColorSeparatePreamble(fd, w, h, 4); 1641 PSDataColorSeparate(fd, tif, w, h, 4); 1642 } 1643 break; 1644 case PHOTOMETRIC_PALETTE: 1645 fprintf(fd, "%s", RGBcolorimage); 1646 PhotoshopBanner(fd, w, h, 1, 3, "false 3 colorimage"); 1647 fprintf(fd, "/scanLine %ld string def\n", 1648 (long) ps_bytesperrow * 3L); 1649 fprintf(fd, "%lu %lu 8\n", 1650 (unsigned long) w, (unsigned long) h); 1651 fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", 1652 (unsigned long) w, (unsigned long) h, (unsigned long) h); 1653 fprintf(fd, "{currentfile scanLine readhexstring pop} bind\n"); 1654 fprintf(fd, "false 3 colorimage\n"); 1655 PSDataPalette(fd, tif, w, h); 1656 break; 1657 case PHOTOMETRIC_MINISBLACK: 1658 case PHOTOMETRIC_MINISWHITE: 1659 PhotoshopBanner(fd, w, h, 1, 1, imageOp); 1660 fprintf(fd, "/scanLine %ld string def\n", 1661 (long) ps_bytesperrow); 1662 fprintf(fd, "%lu %lu %d\n", 1663 (unsigned long) w, (unsigned long) h, bitspersample); 1664 fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", 1665 (unsigned long) w, (unsigned long) h, (unsigned long) h); 1666 fprintf(fd, 1667 "{currentfile scanLine readhexstring pop} bind\n"); 1668 fprintf(fd, "%s\n", imageOp); 1669 PSDataBW(fd, tif, w, h); 1670 break; 1671 } 1672 putc('\n', fd); 1673 } 1674 1675 void 1676 PSColorContigPreamble(FILE* fd, uint32 w, uint32 h, int nc) 1677 { 1678 ps_bytesperrow = nc * (tf_bytesperrow / samplesperpixel); 1679 PhotoshopBanner(fd, w, h, 1, nc, "false %d colorimage"); 1680 fprintf(fd, "/line %ld string def\n", (long) ps_bytesperrow); 1681 fprintf(fd, "%lu %lu %d\n", 1682 (unsigned long) w, (unsigned long) h, bitspersample); 1683 fprintf(fd, "[%lu 0 0 -%lu 0 %lu]\n", 1684 (unsigned long) w, (unsigned long) h, (unsigned long) h); 1685 fprintf(fd, "{currentfile line readhexstring pop} bind\n"); 1686 fprintf(fd, "false %d colorimage\n", nc); 1687 } 1688 1689 void 1690 PSColorSeparatePreamble(FILE* fd, uint32 w, uint32 h, int nc) 1691 { 1692 int i; 1693 1694 PhotoshopBanner(fd, w, h, ps_bytesperrow, nc, "true %d colorimage"); 1695 for (i = 0; i < nc; i++) 1696 fprintf(fd, "/line%d %ld string def\n", 1697 i, (long) ps_bytesperrow); 1698 fprintf(fd, "%lu %lu %d\n", 1699 (unsigned long) w, (unsigned long) h, bitspersample); 1700 fprintf(fd, "[%lu 0 0 -%lu 0 %lu] \n", 1701 (unsigned long) w, (unsigned long) h, (unsigned long) h); 1702 for (i = 0; i < nc; i++) 1703 fprintf(fd, "{currentfile line%d readhexstring pop}bind\n", i); 1704 fprintf(fd, "true %d colorimage\n", nc); 1705 } 1706 1707 #define DOBREAK(len, howmany, fd) \ 1708 if (((len) -= (howmany)) <= 0) { \ 1709 putc('\n', fd); \ 1710 (len) = MAXLINE-(howmany); \ 1711 } 1712 #define PUTHEX(c,fd) putc(hex[((c)>>4)&0xf],fd); putc(hex[(c)&0xf],fd) 1713 1714 void 1715 PSDataColorContig(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) 1716 { 1717 uint32 row; 1718 int breaklen = MAXLINE, es = samplesperpixel - nc; 1719 tsize_t cc; 1720 unsigned char *tf_buf; 1721 unsigned char *cp, c; 1722 1723 (void) w; 1724 tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); 1725 if (tf_buf == NULL) { 1726 TIFFError(filename, "No space for scanline buffer"); 1727 return; 1728 } 1729 for (row = 0; row < h; row++) { 1730 if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) 1731 break; 1732 cp = tf_buf; 1733 /* 1734 * for 16 bits, the two bytes must be most significant 1735 * byte first 1736 */ 1737 if (bitspersample == 16 && !HOST_BIGENDIAN) { 1738 PS_FlipBytes(cp, tf_bytesperrow); 1739 } 1740 if (alpha) { 1741 int adjust; 1742 cc = 0; 1743 for (; cc < tf_bytesperrow; cc += samplesperpixel) { 1744 DOBREAK(breaklen, nc, fd); 1745 /* 1746 * For images with alpha, matte against 1747 * a white background; i.e. 1748 * Cback * (1 - Aimage) 1749 * where Cback = 1. 1750 */ 1751 adjust = 255 - cp[nc]; 1752 switch (nc) { 1753 case 4: c = *cp++ + adjust; PUTHEX(c,fd); 1754 case 3: c = *cp++ + adjust; PUTHEX(c,fd); 1755 case 2: c = *cp++ + adjust; PUTHEX(c,fd); 1756 case 1: c = *cp++ + adjust; PUTHEX(c,fd); 1757 } 1758 cp += es; 1759 } 1760 } else { 1761 cc = 0; 1762 for (; cc < tf_bytesperrow; cc += samplesperpixel) { 1763 DOBREAK(breaklen, nc, fd); 1764 switch (nc) { 1765 case 4: c = *cp++; PUTHEX(c,fd); 1766 case 3: c = *cp++; PUTHEX(c,fd); 1767 case 2: c = *cp++; PUTHEX(c,fd); 1768 case 1: c = *cp++; PUTHEX(c,fd); 1769 } 1770 cp += es; 1771 } 1772 } 1773 } 1774 _TIFFfree((char *) tf_buf); 1775 } 1776 1777 void 1778 PSDataColorSeparate(FILE* fd, TIFF* tif, uint32 w, uint32 h, int nc) 1779 { 1780 uint32 row; 1781 int breaklen = MAXLINE; 1782 tsize_t cc; 1783 tsample_t s, maxs; 1784 unsigned char *tf_buf; 1785 unsigned char *cp, c; 1786 1787 (void) w; 1788 tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); 1789 if (tf_buf == NULL) { 1790 TIFFError(filename, "No space for scanline buffer"); 1791 return; 1792 } 1793 maxs = (samplesperpixel > nc ? nc : samplesperpixel); 1794 for (row = 0; row < h; row++) { 1795 for (s = 0; s < maxs; s++) { 1796 if (TIFFReadScanline(tif, tf_buf, row, s) < 0) 1797 break; 1798 for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { 1799 DOBREAK(breaklen, 1, fd); 1800 c = *cp++; 1801 PUTHEX(c,fd); 1802 } 1803 } 1804 } 1805 _TIFFfree((char *) tf_buf); 1806 } 1807 1808 #define PUTRGBHEX(c,fd) \ 1809 PUTHEX(rmap[c],fd); PUTHEX(gmap[c],fd); PUTHEX(bmap[c],fd) 1810 1811 void 1812 PSDataPalette(FILE* fd, TIFF* tif, uint32 w, uint32 h) 1813 { 1814 uint16 *rmap, *gmap, *bmap; 1815 uint32 row; 1816 int breaklen = MAXLINE, nc; 1817 tsize_t cc; 1818 unsigned char *tf_buf; 1819 unsigned char *cp, c; 1820 1821 (void) w; 1822 if (!TIFFGetField(tif, TIFFTAG_COLORMAP, &rmap, &gmap, &bmap)) { 1823 TIFFError(filename, "Palette image w/o \"Colormap\" tag"); 1824 return; 1825 } 1826 switch (bitspersample) { 1827 case 8: case 4: case 2: case 1: 1828 break; 1829 default: 1830 TIFFError(filename, "Depth %d not supported", bitspersample); 1831 return; 1832 } 1833 nc = 3 * (8 / bitspersample); 1834 tf_buf = (unsigned char *) _TIFFmalloc(tf_bytesperrow); 1835 if (tf_buf == NULL) { 1836 TIFFError(filename, "No space for scanline buffer"); 1837 return; 1838 } 1839 if (checkcmap(tif, 1<<bitspersample, rmap, gmap, bmap) == 16) { 1840 int i; 1841 #define CVT(x) ((unsigned short) (((x) * 255) / ((1U<<16)-1))) 1842 for (i = (1<<bitspersample)-1; i >= 0; i--) { 1843 rmap[i] = CVT(rmap[i]); 1844 gmap[i] = CVT(gmap[i]); 1845 bmap[i] = CVT(bmap[i]); 1846 } 1847 #undef CVT 1848 } 1849 for (row = 0; row < h; row++) { 1850 if (TIFFReadScanline(tif, tf_buf, row, 0) < 0) 1851 break; 1852 for (cp = tf_buf, cc = 0; cc < tf_bytesperrow; cc++) { 1853 DOBREAK(breaklen, nc, fd); 1854 switch (bitspersample) { 1855 case 8: 1856 c = *cp++; PUTRGBHEX(c, fd); 1857 break; 1858 case 4: 1859 c = *cp++; PUTRGBHEX(c&0xf, fd); 1860 c >>= 4; PUTRGBHEX(c, fd); 1861 break; 1862 case 2: 1863 c = *cp++; PUTRGBHEX(c&0x3, fd); 1864 c >>= 2; PUTRGBHEX(c&0x3, fd); 1865 c >>= 2; PUTRGBHEX(c&0x3, fd); 1866 c >>= 2; PUTRGBHEX(c, fd); 1867 break; 1868 case 1: 1869 c = *cp++; PUTRGBHEX(c&0x1, fd); 1870 c >>= 1; PUTRGBHEX(c&0x1, fd); 1871 c >>= 1; PUTRGBHEX(c&0x1, fd); 1872 c >>= 1; PUTRGBHEX(c&0x1, fd); 1873 c >>= 1; PUTRGBHEX(c&0x1, fd); 1874 c >>= 1; PUTRGBHEX(c&0x1, fd); 1875 c >>= 1; PUTRGBHEX(c&0x1, fd); 1876 c >>= 1; PUTRGBHEX(c, fd); 1877 break; 1878 } 1879 } 1880 } 1881 _TIFFfree((char *) tf_buf); 1882 } 1883 1884 void 1885 PSDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) 1886 { 1887 int breaklen = MAXLINE; 1888 unsigned char* tf_buf; 1889 unsigned char* cp; 1890 tsize_t stripsize = TIFFStripSize(tif); 1891 tstrip_t s; 1892 1893 #if defined( EXP_ASCII85ENCODER ) 1894 tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ 1895 uint8 *ascii85_p = 0; /* Holds ASCII85 encoded data */ 1896 #endif 1897 1898 (void) w; (void) h; 1899 tf_buf = (unsigned char *) _TIFFmalloc(stripsize); 1900 memset(tf_buf, 0, stripsize); 1901 if (tf_buf == NULL) { 1902 TIFFError(filename, "No space for scanline buffer"); 1903 return; 1904 } 1905 1906 #if defined( EXP_ASCII85ENCODER ) 1907 if ( ascii85 ) { 1908 /* 1909 * Allocate a buffer to hold the ASCII85 encoded data. Note 1910 * that it is allocated with sufficient room to hold the 1911 * encoded data (5*stripsize/4) plus the EOD marker (+8) 1912 * and formatting line breaks. The line breaks are more 1913 * than taken care of by using 6*stripsize/4 rather than 1914 * 5*stripsize/4. 1915 */ 1916 1917 ascii85_p = _TIFFmalloc( (stripsize+(stripsize/2)) + 8 ); 1918 1919 if ( !ascii85_p ) { 1920 _TIFFfree( tf_buf ); 1921 1922 TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); 1923 return; 1924 } 1925 } 1926 #endif 1927 1928 if (ascii85) 1929 Ascii85Init(); 1930 1931 for (s = 0; s < TIFFNumberOfStrips(tif); s++) { 1932 tmsize_t cc = TIFFReadEncodedStrip(tif, s, tf_buf, stripsize); 1933 if (cc < 0) { 1934 TIFFError(filename, "Can't read strip"); 1935 break; 1936 } 1937 cp = tf_buf; 1938 if (photometric == PHOTOMETRIC_MINISWHITE) { 1939 for (cp += cc; --cp >= tf_buf;) 1940 *cp = ~*cp; 1941 cp++; 1942 } 1943 /* 1944 * for 16 bits, the two bytes must be most significant 1945 * byte first 1946 */ 1947 if (bitspersample == 16 && !HOST_BIGENDIAN) { 1948 PS_FlipBytes(cp, cc); 1949 } 1950 if (ascii85) { 1951 #if defined( EXP_ASCII85ENCODER ) 1952 if (alpha) { 1953 int adjust, i; 1954 for (i = 0; i < cc; i+=2) { 1955 adjust = 255 - cp[i + 1]; 1956 cp[i / 2] = cp[i] + adjust; 1957 } 1958 cc /= 2; 1959 } 1960 1961 ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, cp, cc ); 1962 1963 if ( ascii85_l > 0 ) 1964 fwrite( ascii85_p, ascii85_l, 1, fd ); 1965 #else 1966 while (cc-- > 0) 1967 Ascii85Put(*cp++, fd); 1968 #endif /* EXP_ASCII85_ENCODER */ 1969 } else { 1970 unsigned char c; 1971 1972 if (alpha) { 1973 int adjust; 1974 while (cc-- > 0) { 1975 DOBREAK(breaklen, 1, fd); 1976 /* 1977 * For images with alpha, matte against 1978 * a white background; i.e. 1979 * Cback * (1 - Aimage) 1980 * where Cback = 1. 1981 */ 1982 adjust = 255 - cp[1]; 1983 c = *cp++ + adjust; PUTHEX(c,fd); 1984 cp++, cc--; 1985 } 1986 } else { 1987 while (cc-- > 0) { 1988 c = *cp++; 1989 DOBREAK(breaklen, 1, fd); 1990 PUTHEX(c, fd); 1991 } 1992 } 1993 } 1994 } 1995 1996 if ( !ascii85 ) 1997 { 1998 if ( level2 || level3) 1999 fputs(">\n", fd); 2000 } 2001 #if !defined( EXP_ASCII85ENCODER ) 2002 else 2003 Ascii85Flush(fd); 2004 #else 2005 if ( ascii85_p ) 2006 _TIFFfree( ascii85_p ); 2007 #endif 2008 2009 _TIFFfree(tf_buf); 2010 } 2011 2012 void 2013 PSRawDataBW(FILE* fd, TIFF* tif, uint32 w, uint32 h) 2014 { 2015 uint64 *bc; 2016 uint32 bufsize; 2017 int breaklen = MAXLINE; 2018 tmsize_t cc; 2019 uint16 fillorder; 2020 unsigned char *tf_buf; 2021 unsigned char *cp, c; 2022 tstrip_t s; 2023 2024 #if defined( EXP_ASCII85ENCODER ) 2025 tsize_t ascii85_l; /* Length, in bytes, of ascii85_p[] data */ 2026 uint8 * ascii85_p = 0; /* Holds ASCII85 encoded data */ 2027 #endif 2028 2029 (void) w; (void) h; 2030 TIFFGetFieldDefaulted(tif, TIFFTAG_FILLORDER, &fillorder); 2031 TIFFGetField(tif, TIFFTAG_STRIPBYTECOUNTS, &bc); 2032 2033 /* 2034 * Find largest strip: 2035 */ 2036 2037 bufsize = (uint32) bc[0]; 2038 2039 for ( s = 0; ++s < (tstrip_t)tf_numberstrips; ) { 2040 if ( bc[s] > bufsize ) 2041 bufsize = (uint32) bc[s]; 2042 } 2043 2044 tf_buf = (unsigned char*) _TIFFmalloc(bufsize); 2045 if (tf_buf == NULL) { 2046 TIFFError(filename, "No space for strip buffer"); 2047 return; 2048 } 2049 2050 #if defined( EXP_ASCII85ENCODER ) 2051 if ( ascii85 ) { 2052 /* 2053 * Allocate a buffer to hold the ASCII85 encoded data. Note 2054 * that it is allocated with sufficient room to hold the 2055 * encoded data (5*bufsize/4) plus the EOD marker (+8) 2056 * and formatting line breaks. The line breaks are more 2057 * than taken care of by using 6*bufsize/4 rather than 2058 * 5*bufsize/4. 2059 */ 2060 2061 ascii85_p = _TIFFmalloc( (bufsize+(bufsize/2)) + 8 ); 2062 2063 if ( !ascii85_p ) { 2064 _TIFFfree( tf_buf ); 2065 2066 TIFFError( filename, "Cannot allocate ASCII85 encoding buffer." ); 2067 return; 2068 } 2069 } 2070 #endif 2071 2072 for (s = 0; s < (tstrip_t) tf_numberstrips; s++) { 2073 cc = TIFFReadRawStrip(tif, s, tf_buf, (tmsize_t) bc[s]); 2074 if (cc < 0) { 2075 TIFFError(filename, "Can't read strip"); 2076 break; 2077 } 2078 if (fillorder == FILLORDER_LSB2MSB) 2079 TIFFReverseBits(tf_buf, cc); 2080 if (!ascii85) { 2081 for (cp = tf_buf; cc > 0; cc--) { 2082 DOBREAK(breaklen, 1, fd); 2083 c = *cp++; 2084 PUTHEX(c, fd); 2085 } 2086 fputs(">\n", fd); 2087 breaklen = MAXLINE; 2088 } else { 2089 Ascii85Init(); 2090 #if defined( EXP_ASCII85ENCODER ) 2091 ascii85_l = Ascii85EncodeBlock( ascii85_p, 1, tf_buf, cc ); 2092 2093 if ( ascii85_l > 0 ) 2094 fwrite( ascii85_p, ascii85_l, 1, fd ); 2095 #else 2096 for (cp = tf_buf; cc > 0; cc--) 2097 Ascii85Put(*cp++, fd); 2098 Ascii85Flush(fd); 2099 #endif /* EXP_ASCII85ENCODER */ 2100 } 2101 } 2102 _TIFFfree((char *) tf_buf); 2103 2104 #if defined( EXP_ASCII85ENCODER ) 2105 if ( ascii85_p ) 2106 _TIFFfree( ascii85_p ); 2107 #endif 2108 } 2109 2110 void 2111 Ascii85Init(void) 2112 { 2113 ascii85breaklen = 2*MAXLINE; 2114 ascii85count = 0; 2115 } 2116 2117 static char* 2118 Ascii85Encode(unsigned char* raw) 2119 { 2120 static char encoded[6]; 2121 uint32 word; 2122 2123 word = (((raw[0]<<8)+raw[1])<<16) + (raw[2]<<8) + raw[3]; 2124 if (word != 0L) { 2125 uint32 q; 2126 uint16 w1; 2127 2128 q = word / (85L*85*85*85); /* actually only a byte */ 2129 encoded[0] = (char) (q + '!'); 2130 2131 word -= q * (85L*85*85*85); q = word / (85L*85*85); 2132 encoded[1] = (char) (q + '!'); 2133 2134 word -= q * (85L*85*85); q = word / (85*85); 2135 encoded[2] = (char) (q + '!'); 2136 2137 w1 = (uint16) (word - q*(85L*85)); 2138 encoded[3] = (char) ((w1 / 85) + '!'); 2139 encoded[4] = (char) ((w1 % 85) + '!'); 2140 encoded[5] = '\0'; 2141 } else 2142 encoded[0] = 'z', encoded[1] = '\0'; 2143 return (encoded); 2144 } 2145 2146 void 2147 Ascii85Put(unsigned char code, FILE* fd) 2148 { 2149 ascii85buf[ascii85count++] = code; 2150 if (ascii85count >= 4) { 2151 unsigned char* p; 2152 int n; 2153 2154 for (n = ascii85count, p = ascii85buf; n >= 4; n -= 4, p += 4) { 2155 char* cp; 2156 for (cp = Ascii85Encode(p); *cp; cp++) { 2157 putc(*cp, fd); 2158 if (--ascii85breaklen == 0) { 2159 putc('\n', fd); 2160 ascii85breaklen = 2*MAXLINE; 2161 } 2162 } 2163 } 2164 _TIFFmemcpy(ascii85buf, p, n); 2165 ascii85count = n; 2166 } 2167 } 2168 2169 void 2170 Ascii85Flush(FILE* fd) 2171 { 2172 if (ascii85count > 0) { 2173 char* res; 2174 _TIFFmemset(&ascii85buf[ascii85count], 0, 3); 2175 res = Ascii85Encode(ascii85buf); 2176 fwrite(res[0] == 'z' ? "!!!!" : res, ascii85count + 1, 1, fd); 2177 } 2178 fputs("~>\n", fd); 2179 } 2180 #if defined( EXP_ASCII85ENCODER) 2181 2182 #define A85BREAKCNTR ascii85breaklen 2183 #define A85BREAKLEN (2*MAXLINE) 2184 2185 /***************************************************************************** 2186 * 2187 * Name: Ascii85EncodeBlock( ascii85_p, f_eod, raw_p, raw_l ) 2188 * 2189 * Description: This routine will encode the raw data in the buffer described 2190 * by raw_p and raw_l into ASCII85 format and store the encoding 2191 * in the buffer given by ascii85_p. 2192 * 2193 * Parameters: ascii85_p - A buffer supplied by the caller which will 2194 * contain the encoded ASCII85 data. 2195 * f_eod - Flag: Nz means to end the encoded buffer with 2196 * an End-Of-Data marker. 2197 * raw_p - Pointer to the buffer of data to be encoded 2198 * raw_l - Number of bytes in raw_p[] to be encoded 2199 * 2200 * Returns: (int) < 0 Error, see errno 2201 * >= 0 Number of bytes written to ascii85_p[]. 2202 * 2203 * Notes: An external variable given by A85BREAKCNTR is used to 2204 * determine when to insert newline characters into the 2205 * encoded data. As each byte is placed into ascii85_p this 2206 * external is decremented. If the variable is decrement to 2207 * or past zero then a newline is inserted into ascii85_p 2208 * and the A85BREAKCNTR is then reset to A85BREAKLEN. 2209 * Note: for efficiency reasons the A85BREAKCNTR variable 2210 * is not actually checked on *every* character 2211 * placed into ascii85_p but often only for every 2212 * 5 characters. 2213 * 2214 * THE CALLER IS RESPONSIBLE FOR ENSURING THAT ASCII85_P[] IS 2215 * SUFFICIENTLY LARGE TO THE ENCODED DATA! 2216 * You will need at least 5 * (raw_l/4) bytes plus space for 2217 * newline characters and space for an EOD marker (if 2218 * requested). A safe calculation is to use 6*(raw_l/4) + 8 2219 * to size ascii85_p. 2220 * 2221 *****************************************************************************/ 2222 2223 tsize_t Ascii85EncodeBlock( uint8 * ascii85_p, unsigned f_eod, const uint8 * raw_p, tsize_t raw_l ) 2224 2225 { 2226 char ascii85[5]; /* Encoded 5 tuple */ 2227 tsize_t ascii85_l; /* Number of bytes written to ascii85_p[] */ 2228 int rc; /* Return code */ 2229 uint32 val32; /* Unencoded 4 tuple */ 2230 2231 ascii85_l = 0; /* Nothing written yet */ 2232 2233 if ( raw_p ) 2234 { 2235 --raw_p; /* Prepare for pre-increment fetches */ 2236 2237 for ( ; raw_l > 3; raw_l -= 4 ) 2238 { 2239 val32 = *(++raw_p) << 24; 2240 val32 += *(++raw_p) << 16; 2241 val32 += *(++raw_p) << 8; 2242 val32 += *(++raw_p); 2243 2244 if ( val32 == 0 ) /* Special case */ 2245 { 2246 ascii85_p[ascii85_l] = 'z'; 2247 rc = 1; 2248 } 2249 2250 else 2251 { 2252 ascii85[4] = (char) ((val32 % 85) + 33); 2253 val32 /= 85; 2254 2255 ascii85[3] = (char) ((val32 % 85) + 33); 2256 val32 /= 85; 2257 2258 ascii85[2] = (char) ((val32 % 85) + 33); 2259 val32 /= 85; 2260 2261 ascii85[1] = (char) ((val32 % 85) + 33); 2262 ascii85[0] = (char) ((val32 / 85) + 33); 2263 2264 _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, sizeof(ascii85) ); 2265 rc = sizeof(ascii85); 2266 } 2267 2268 ascii85_l += rc; 2269 2270 if ( (A85BREAKCNTR -= rc) <= 0 ) 2271 { 2272 ascii85_p[ascii85_l] = '\n'; 2273 ++ascii85_l; 2274 A85BREAKCNTR = A85BREAKLEN; 2275 } 2276 } 2277 2278 /* 2279 * Output any straggler bytes: 2280 */ 2281 2282 if ( raw_l > 0 ) 2283 { 2284 tsize_t len; /* Output this many bytes */ 2285 2286 len = raw_l + 1; 2287 val32 = *++raw_p << 24; /* Prime the pump */ 2288 2289 if ( --raw_l > 0 ) val32 += *(++raw_p) << 16; 2290 if ( --raw_l > 0 ) val32 += *(++raw_p) << 8; 2291 2292 val32 /= 85; 2293 2294 ascii85[3] = (char) ((val32 % 85) + 33); 2295 val32 /= 85; 2296 2297 ascii85[2] = (char) ((val32 % 85) + 33); 2298 val32 /= 85; 2299 2300 ascii85[1] = (char) ((val32 % 85) + 33); 2301 ascii85[0] = (char) ((val32 / 85) + 33); 2302 2303 _TIFFmemcpy( &ascii85_p[ascii85_l], ascii85, len ); 2304 ascii85_l += len; 2305 } 2306 } 2307 2308 /* 2309 * If requested add an ASCII85 End Of Data marker: 2310 */ 2311 2312 if ( f_eod ) 2313 { 2314 ascii85_p[ascii85_l++] = '~'; 2315 ascii85_p[ascii85_l++] = '>'; 2316 ascii85_p[ascii85_l++] = '\n'; 2317 } 2318 2319 return ( ascii85_l ); 2320 2321 } /* Ascii85EncodeBlock() */ 2322 2323 #endif /* EXP_ASCII85ENCODER */ 2324 2325 2326 char* stuff[] = { 2327 "usage: tiff2ps [options] input.tif ...", 2328 "where options are:", 2329 " -1 generate PostScript Level 1 (default)", 2330 " -2 generate PostScript Level 2", 2331 " -3 generate PostScript Level 3", 2332 " -8 disable use of ASCII85 encoding with PostScript Level 2/3", 2333 " -a convert all directories in file (default is first)", 2334 " -b # set the bottom margin to # inches", 2335 " -c center image (-b and -l still add to this)", 2336 " -d # convert directory number #", 2337 " -D enable duplex printing (two pages per sheet of paper)", 2338 " -e generate Encapsulated PostScript (EPS) (implies -z)", 2339 " -h # assume printed page height is # inches (default 11)", 2340 " -w # assume printed page width is # inches (default 8.5)", 2341 " -H # split image if height is more than # inches", 2342 " -W # split image if width is more than # inches", 2343 " -L # overLap split images by # inches", 2344 " -i # enable/disable (Nz/0) pixel interpolation (default: enable)", 2345 " -l # set the left margin to # inches", 2346 " -m use \"imagemask\" operator instead of \"image\"", 2347 " -o # convert directory at file offset #", 2348 " -O file write PostScript to file instead of standard output", 2349 " -p generate regular PostScript", 2350 " -r # or auto rotate by 90, 180, 270 degrees or auto", 2351 " -s generate PostScript for a single image", 2352 " -T print pages for top edge binding", 2353 " -x override resolution units as centimeters", 2354 " -y override resolution units as inches", 2355 " -z enable printing in the deadzone (only for PostScript Level 2/3)", 2356 NULL 2357 }; 2358 2359 static void 2360 usage(int code) 2361 { 2362 char buf[BUFSIZ]; 2363 int i; 2364 2365 setbuf(stderr, buf); 2366 fprintf(stderr, "%s\n\n", TIFFGetVersion()); 2367 for (i = 0; stuff[i] != NULL; i++) 2368 fprintf(stderr, "%s\n", stuff[i]); 2369 exit(code); 2370 } 2371 2372 /* vim: set ts=8 sts=8 sw=8 noet: */ 2373 /* 2374 * Local Variables: 2375 * mode: c 2376 * c-basic-offset: 8 2377 * fill-column: 78 2378 * End: 2379 */ 2380