t2p.c

Tue, 01 Jan 2002 10:16:50 +0000

author
eric
date
Tue, 01 Jan 2002 10:16:50 +0000
changeset 32
3aac131058da
parent 30
35fad7ec7732
child 36
a338db73c6f4
permissions
-rw-r--r--

added start of page size support.

eric@10 1 /*
eric@29 2 * tiff2pdf: Create a PDF file from the contents of one or more
eric@29 3 * TIFF bilevel image files. The images in the resulting
eric@29 4 * PDF file will be compressed using ITU-T T.6 (G4) fax
eric@29 5 * encoding.
eric@29 6 *
eric@10 7 * Main program
eric@32 8 * $Id: t2p.c,v 1.12 2002/01/01 02:16:50 eric Exp $
eric@10 9 * Copyright 2001 Eric Smith <eric@brouhaha.com>
eric@10 10 *
eric@10 11 * This program is free software; you can redistribute it and/or modify
eric@10 12 * it under the terms of the GNU General Public License version 2 as
eric@10 13 * published by the Free Software Foundation. Note that permission is
eric@10 14 * not granted to redistribute this program under the terms of any
eric@10 15 * other version of the General Public License.
eric@10 16 *
eric@10 17 * This program is distributed in the hope that it will be useful,
eric@10 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
eric@10 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
eric@10 20 * GNU General Public License for more details.
eric@10 21 *
eric@10 22 * You should have received a copy of the GNU General Public License
eric@10 23 * along with this program; if not, write to the Free Software
eric@10 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
eric@10 25 */
eric@10 26
eric@10 27
eric@10 28 #include <stdio.h>
eric@28 29 #include <stdlib.h>
eric@28 30 #include <unistd.h>
eric@10 31 #include <tiffio.h>
eric@10 32 #include <panda/functions.h>
eric@10 33 #include <panda/constants.h>
eric@10 34
eric@10 35 #include "type.h"
eric@10 36 #include "bitblt.h"
eric@18 37 #include "semantics.h"
eric@10 38 #include "parser.tab.h"
eric@10 39 #include "tiff2pdf.h"
eric@10 40
eric@10 41
eric@28 42 #define POINTS_PER_INCH 72
eric@28 43
eric@28 44 /* page size limited by Acrobat Reader to 45 inches on a side */
eric@28 45 #define PAGE_MAX_INCHES 45
eric@28 46 #define PAGE_MAX_POINTS (PAGE_MAX_INCHES * POINTS_PER_INCH)
eric@28 47
eric@28 48
eric@26 49 typedef struct output_file_t
eric@26 50 {
eric@26 51 struct output_file_t *next;
eric@26 52 char *name;
eric@26 53 panda_pdf *pdf;
eric@26 54 } output_file_t;
eric@26 55
eric@26 56
eric@26 57 char *in_filename;
eric@10 58 TIFF *in;
eric@26 59 output_file_t *output_files;
eric@26 60 output_file_t *out;
eric@26 61 /* panda_pdf *out; */
eric@10 62
eric@10 63
eric@10 64 boolean close_tiff_input_file (void)
eric@10 65 {
eric@10 66 if (in)
eric@26 67 {
eric@26 68 free (in_filename);
eric@26 69 TIFFClose (in);
eric@26 70 }
eric@10 71 in = NULL;
eric@26 72 in_filename = NULL;
eric@10 73 return (1);
eric@10 74 }
eric@10 75
eric@10 76 boolean open_tiff_input_file (char *name)
eric@10 77 {
eric@10 78 if (in)
eric@26 79 {
eric@26 80 if (strcmp (name, in_filename) == 0)
eric@26 81 return (1);
eric@26 82 close_tiff_input_file ();
eric@26 83 }
eric@26 84 in_filename = strdup (name);
eric@26 85 if (! in_filename)
eric@26 86 {
eric@26 87 fprintf (stderr, "can't strdup input filename '%s'\n", name);
eric@26 88 return (0);
eric@26 89 }
eric@10 90 in = TIFFOpen (name, "r");
eric@10 91 if (! in)
eric@10 92 {
eric@10 93 fprintf (stderr, "can't open input file '%s'\n", name);
eric@26 94 free (in_filename);
eric@10 95 return (0);
eric@10 96 }
eric@10 97 return (1);
eric@10 98 }
eric@10 99
eric@10 100
eric@26 101 boolean close_pdf_output_files (void)
eric@10 102 {
eric@26 103 output_file_t *o, *n;
eric@26 104
eric@26 105 for (o = output_files; o; o = n)
eric@26 106 {
eric@26 107 n = o->next;
eric@26 108 panda_close (o->pdf);
eric@26 109 free (o->name);
eric@26 110 free (o);
eric@26 111 }
eric@10 112 out = NULL;
eric@26 113 output_files = NULL;
eric@10 114 return (1);
eric@10 115 }
eric@10 116
eric@30 117 boolean open_pdf_output_file (char *name,
eric@30 118 pdf_file_attributes_t *attributes)
eric@10 119 {
eric@26 120 output_file_t *o;
eric@26 121
eric@26 122 if (out && (strcmp (name, out->name) == 0))
eric@26 123 return (1);
eric@26 124 for (o = output_files; o; o = o->next)
eric@26 125 if (strcmp (name, o->name) == 0)
eric@26 126 {
eric@26 127 out = o;
eric@26 128 return (1);
eric@26 129 }
eric@26 130 o = calloc (1, sizeof (output_file_t));
eric@29 131 if (! o)
eric@10 132 {
eric@26 133 fprintf (stderr, "can't calloc output file struct for '%s'\n", name);
eric@26 134 return (0);
eric@26 135 }
eric@26 136
eric@26 137 o->name = strdup (name);
eric@26 138 if (! o->name)
eric@26 139 {
eric@26 140 fprintf (stderr, "can't strdup output filename '%s'\n", name);
eric@26 141 free (o);
eric@10 142 return (0);
eric@10 143 }
eric@26 144
eric@26 145 o->pdf = panda_open (name, "w");
eric@26 146 if (! o->pdf)
eric@26 147 {
eric@26 148 fprintf (stderr, "can't open output file '%s'\n", name);
eric@26 149 free (o->name);
eric@26 150 free (o);
eric@26 151 return (0);
eric@26 152 }
eric@26 153
eric@30 154 if (attributes->author)
eric@30 155 panda_setauthor (o->pdf, attributes->author);
eric@30 156 if (attributes->creator)
eric@30 157 panda_setcreator (o->pdf, attributes->creator);
eric@30 158 if (attributes->title)
eric@30 159 panda_settitle (o->pdf, attributes->title);
eric@30 160 if (attributes->subject)
eric@30 161 panda_setsubject (o->pdf, attributes->subject);
eric@30 162 if (attributes->keywords)
eric@30 163 panda_setkeywords (o->pdf, attributes->keywords);
eric@30 164
eric@26 165 /* prepend new output file onto list */
eric@26 166 o->next = output_files;
eric@26 167 output_files = o;
eric@26 168
eric@26 169 out = o;
eric@10 170 return (1);
eric@10 171 }
eric@10 172
eric@10 173
eric@25 174 void process_page_numbers (int page_index,
eric@25 175 int count,
eric@25 176 int base,
eric@25 177 page_label_t *page_label)
eric@25 178 {
eric@25 179 }
eric@25 180
eric@25 181
eric@32 182 static Bitmap *rotate_bitmap (Bitmap *src, int rotation)
eric@32 183 {
eric@32 184 Rect src_rect;
eric@32 185 Point dest_upper_left;
eric@32 186 int scan;
eric@32 187
eric@32 188 src_rect.upper_left.x = 0;
eric@32 189 src_rect.upper_left.y = 0;
eric@32 190 src_rect.lower_right.x = src->width;
eric@32 191 src_rect.lower_right.y = src->height;
eric@32 192
eric@32 193 dest_upper_left.x = 0;
eric@32 194 dest_upper_left.y = 0;
eric@32 195
eric@32 196 switch (rotation)
eric@32 197 {
eric@32 198 case 0: scan = ROT_0; break;
eric@32 199 case 90: scan = ROT_90; break;
eric@32 200 case 180: scan = ROT_180; break;
eric@32 201 case 270: scan = ROT_270; break;
eric@32 202 default:
eric@32 203 fprintf (stderr, "rotation must be 0, 90, 180, or 270\n");
eric@32 204 return (NULL);
eric@32 205 }
eric@32 206
eric@32 207 return (bitblt (src,
eric@32 208 src_rect,
eric@32 209 NULL, /* dest_bitmap */
eric@32 210 dest_upper_left,
eric@32 211 scan,
eric@32 212 TF_SRC));
eric@32 213 }
eric@32 214
eric@32 215
eric@32 216 #define SWAP(type,a,b) do { type temp; temp = a; a = b; b = temp; } while (0)
eric@32 217
eric@23 218 boolean process_page (int image, /* range 1 .. n */
eric@23 219 input_attributes_t input_attributes,
eric@25 220 bookmark_t *bookmarks)
eric@10 221 {
eric@29 222 int result = 0;
eric@29 223
eric@10 224 u32 image_length, image_width;
eric@32 225 u32 dest_image_length, dest_image_width;
eric@10 226 #ifdef CHECK_DEPTH
eric@10 227 u32 image_depth;
eric@10 228 #endif
eric@29 229
eric@29 230 u16 samples_per_pixel;
eric@10 231 u16 bits_per_sample;
eric@10 232 u16 planar_config;
eric@32 233
eric@10 234 u16 resolution_unit;
eric@10 235 float x_resolution, y_resolution;
eric@32 236 float dest_x_resolution, dest_y_resolution;
eric@32 237
eric@32 238 int scanline_size;
eric@32 239
eric@28 240 int width_points, height_points; /* really 1/72 inch units rather than
eric@28 241 points */
eric@28 242
eric@32 243 Bitmap *src_bitmap;
eric@32 244 Bitmap *dest_bitmap;
eric@32 245 int row;
eric@10 246
eric@28 247 panda_page *page;
eric@28 248
eric@28 249 int tiff_temp_fd;
eric@28 250 char tiff_temp_fn [] = "/var/tmp/tiff2pdf-XXXXXX\0";
eric@28 251 TIFF *tiff_temp;
eric@28 252
eric@28 253 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
eric@28 254 two zeros, three spaces, two brackets, and a NULL.
eric@28 255 Added an extra ten characters just in case. */
eric@28 256
eric@10 257 if (! TIFFSetDirectory (in, image - 1))
eric@10 258 {
eric@10 259 fprintf (stderr, "can't find page %d of input file\n", image);
eric@10 260 goto fail;
eric@10 261 }
eric@10 262 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
eric@10 263 {
eric@10 264 fprintf (stderr, "can't get image length\n");
eric@10 265 goto fail;
eric@10 266 }
eric@10 267 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
eric@10 268 {
eric@10 269 fprintf (stderr, "can't get image width\n");
eric@10 270 goto fail;
eric@10 271 }
eric@29 272
eric@29 273 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
eric@29 274 {
eric@29 275 fprintf (stderr, "can't get samples per pixel\n");
eric@29 276 goto fail;
eric@29 277 }
eric@29 278
eric@10 279 #ifdef CHECK_DEPTH
eric@10 280 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
eric@10 281 {
eric@10 282 fprintf (stderr, "can't get image depth\n");
eric@10 283 goto fail;
eric@10 284 }
eric@10 285 #endif
eric@10 286
eric@10 287 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
eric@10 288 {
eric@10 289 fprintf (stderr, "can't get bits per sample\n");
eric@10 290 goto fail;
eric@10 291 }
eric@10 292
eric@10 293 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
eric@10 294 planar_config = 1;
eric@10 295
eric@10 296 printf ("image length %u width %u, "
eric@10 297 #ifdef CHECK_DEPTH
eric@10 298 "depth %u, "
eric@10 299 #endif
eric@10 300 "planar config %u\n",
eric@10 301 image_length, image_width,
eric@10 302 #ifdef CHECK_DEPTH
eric@10 303 image_depth,
eric@10 304 #endif
eric@10 305 planar_config);
eric@10 306
eric@10 307 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
eric@10 308 resolution_unit = 2;
eric@10 309 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
eric@10 310 x_resolution = 300;
eric@10 311 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
eric@10 312 y_resolution = 300;
eric@10 313
eric@10 314 printf ("resolution unit %u, x resolution %f, y resolution %f\n",
eric@10 315 resolution_unit, x_resolution, y_resolution);
eric@10 316
eric@29 317 if (samples_per_pixel != 1)
eric@29 318 {
eric@29 319 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
eric@29 320 goto fail;
eric@29 321 }
eric@29 322
eric@10 323 #ifdef CHECK_DEPTH
eric@10 324 if (image_depth != 1)
eric@10 325 {
eric@10 326 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
eric@10 327 goto fail;
eric@10 328 }
eric@10 329 #endif
eric@10 330
eric@10 331 if (bits_per_sample != 1)
eric@10 332 {
eric@10 333 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
eric@10 334 goto fail;
eric@10 335 }
eric@10 336
eric@10 337 if (planar_config != 1)
eric@10 338 {
eric@10 339 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
eric@10 340 goto fail;
eric@10 341 }
eric@10 342
eric@32 343 width_points = (image_width / x_resolution) * POINTS_PER_INCH;
eric@32 344 height_points = (image_length / y_resolution) * POINTS_PER_INCH;
eric@32 345
eric@32 346 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
eric@32 347 {
eric@32 348 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
eric@32 349 goto fail;
eric@32 350 }
eric@32 351
eric@32 352 printf ("height_points %d, width_points %d\n", height_points, width_points);
eric@32 353
eric@28 354 tiff_temp_fd = mkstemp (tiff_temp_fn);
eric@28 355 if (tiff_temp_fd < 0)
eric@28 356 {
eric@28 357 fprintf (stderr, "can't create temporary TIFF file\n");
eric@28 358 goto fail;
eric@28 359 }
eric@10 360
eric@28 361 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
eric@28 362 if (! out)
eric@28 363 {
eric@28 364 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
eric@28 365 goto fail;
eric@28 366 }
eric@10 367
eric@32 368 printf ("rotation %d\n", input_attributes.rotation);
eric@32 369
eric@32 370 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
eric@32 371 {
eric@32 372 dest_image_width = image_length;
eric@32 373 dest_image_length = image_width;
eric@32 374 dest_x_resolution = y_resolution;
eric@32 375 dest_y_resolution = x_resolution;
eric@32 376 SWAP (int, width_points, height_points);
eric@32 377 }
eric@32 378 else
eric@32 379 {
eric@32 380 dest_image_width = image_width;
eric@32 381 dest_image_length = image_length;
eric@32 382 dest_x_resolution = x_resolution;
eric@32 383 dest_y_resolution = y_resolution;
eric@32 384 }
eric@32 385
eric@32 386 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, dest_image_length);
eric@32 387 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, dest_image_width);
eric@28 388 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
eric@28 389
eric@32 390 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, dest_image_length);
eric@10 391
eric@28 392 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
eric@32 393 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, dest_x_resolution);
eric@32 394 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, dest_y_resolution);
eric@28 395
eric@29 396 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
eric@28 397 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
eric@28 398 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
eric@28 399 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
eric@10 400
eric@32 401 scanline_size = TIFFScanlineSize (in);
eric@32 402
eric@32 403 src_bitmap = create_bitmap (image_width, image_length);
eric@32 404 if (! src_bitmap)
eric@10 405 {
eric@32 406 fprintf (stderr, "can't allocate bitmap\n");
eric@10 407 goto fail;
eric@10 408 }
eric@10 409
eric@32 410 if (src_bitmap->rowbytes != scanline_size)
eric@32 411 {
eric@32 412 printf ("image_width %d\n", image_width);
eric@32 413 printf ("rowbytes %d\n", src_bitmap->rowbytes);
eric@32 414 printf ("TIFFScanlineSize %d\n", scanline_size);
eric@32 415 }
eric@32 416
eric@10 417 for (row = 0; row < image_length; row++)
eric@32 418 TIFFReadScanline (in,
eric@32 419 src_bitmap->bits + row * src_bitmap->rowbytes,
eric@32 420 row,
eric@32 421 0);
eric@10 422
eric@32 423 for (row = 0; row < dest_image_length; row++)
eric@32 424 if (1 != TIFFReadScanline (in,
eric@32 425 src_bitmap->bits + row * src_bitmap->rowbytes,
eric@32 426 row,
eric@32 427 0))
eric@32 428 {
eric@32 429 fprintf (stderr, "can't read TIFF scanline\n");
eric@32 430 goto fail;
eric@32 431 }
eric@28 432
eric@32 433 dest_bitmap = rotate_bitmap (src_bitmap, input_attributes.rotation);
eric@32 434 if (! dest_bitmap)
eric@28 435 {
eric@32 436 fprintf (stderr, "can't allocate bitmap\n");
eric@28 437 goto fail;
eric@28 438 }
eric@28 439
eric@32 440 for (row = 0; row < dest_bitmap->height; row++)
eric@32 441 if (1 != TIFFWriteScanline (tiff_temp,
eric@32 442 dest_bitmap->bits + row * dest_bitmap->rowbytes,
eric@32 443 row,
eric@32 444 0))
eric@32 445 {
eric@32 446 fprintf (stderr, "can't write TIFF scanline\n");
eric@32 447 goto fail;
eric@32 448 }
eric@32 449
eric@32 450 TIFFClose (tiff_temp);
eric@32 451
eric@32 452 free_bitmap (dest_bitmap);
eric@32 453 free_bitmap (src_bitmap);
eric@28 454
eric@28 455 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
eric@28 456
eric@28 457 page = panda_newpage (out->pdf, pagesize);
eric@28 458 panda_imagebox (out->pdf,
eric@28 459 page,
eric@28 460 0, /* top */
eric@28 461 0, /* left */
eric@28 462 height_points, /* bottom */
eric@28 463 width_points, /* right */
eric@28 464 tiff_temp_fn,
eric@28 465 panda_image_tiff);
eric@28 466
eric@29 467 result = 1;
eric@10 468
eric@10 469 fail:
eric@29 470 if (tiff_temp_fd)
eric@29 471 unlink (tiff_temp_fn);
eric@29 472 return (result);
eric@10 473 }
eric@10 474
eric@10 475
eric@10 476 int main (int argc, char *argv[])
eric@10 477 {
eric@10 478 int result = 0;
eric@10 479
eric@10 480 panda_init ();
eric@10 481
eric@10 482 if (argc != 2)
eric@10 483 {
eric@10 484 fprintf (stderr, "usage: %s spec\n", argv [0]);
eric@10 485 result = 1;
eric@10 486 goto fail;
eric@10 487 }
eric@10 488
eric@17 489 if (! parse_spec_file (argv [1]))
eric@26 490 {
eric@26 491 result = 2;
eric@26 492 goto fail;
eric@26 493 }
eric@26 494
eric@26 495 if (! process_specs ())
eric@26 496 {
eric@26 497 result = 3;
eric@26 498 goto fail;
eric@26 499 }
eric@17 500
eric@10 501 fail:
eric@10 502 close_tiff_input_file ();
eric@26 503 close_pdf_output_files ();
eric@10 504 return (result);
eric@10 505 }