t2p.c

Tue, 22 Jan 2002 09:42:42 +0000

author
eric
date
Tue, 22 Jan 2002 09:42:42 +0000
changeset 43
b80cb5a4282a
parent 42
9c85a4cd88a3
child 44
0f78374addae
permissions
-rw-r--r--

*** empty log message ***

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@43 8 * $Id: t2p.c,v 1.15 2002/01/22 01:42:42 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@42 182 /* frees original! */
eric@42 183 static Bitmap *resize_bitmap (Bitmap *src,
eric@36 184 float x_resolution,
eric@36 185 float y_resolution,
eric@36 186 input_attributes_t input_attributes)
eric@32 187 {
eric@32 188 Rect src_rect;
eric@42 189 Point dest_min;
eric@42 190 Bitmap *dest;
eric@32 191
eric@42 192 int width_pixels = input_attributes.page_size.width * x_resolution;
eric@42 193 int height_pixels = input_attributes.page_size.height * y_resolution;
eric@42 194
eric@42 195 src_rect.min.x = (rect_width (& src->rect) - width_pixels) / 2;
eric@42 196 src_rect.min.y = (rect_height (& src->rect) - height_pixels) / 2;
eric@42 197 src_rect.max.x = src_rect.min.x + width_pixels;
eric@42 198 src_rect.max.y = src_rect.min.y + height_pixels;
eric@36 199
eric@42 200 dest_min.x = 0;
eric@42 201 dest_min.y = 0;
eric@32 202
eric@43 203 dest = bitblt (src, & src_rect, NULL, & dest_min, TF_SRC, 0);
eric@42 204 free_bitmap (src);
eric@42 205 return (dest);
eric@42 206 }
eric@32 207
eric@42 208
eric@42 209 /* "in place" rotation */
eric@42 210 static void rotate_bitmap (Bitmap *src,
eric@42 211 input_attributes_t input_attributes)
eric@42 212 {
eric@36 213 switch (input_attributes.rotation)
eric@32 214 {
eric@42 215 case 0: break;
eric@42 216 case 90: rot_90 (src); break;
eric@42 217 case 180: rot_180 (src); break;
eric@42 218 case 270: rot_270 (src); break;
eric@32 219 default:
eric@32 220 fprintf (stderr, "rotation must be 0, 90, 180, or 270\n");
eric@32 221 }
eric@32 222 }
eric@32 223
eric@32 224
eric@32 225 #define SWAP(type,a,b) do { type temp; temp = a; a = b; b = temp; } while (0)
eric@32 226
eric@23 227 boolean process_page (int image, /* range 1 .. n */
eric@23 228 input_attributes_t input_attributes,
eric@25 229 bookmark_t *bookmarks)
eric@10 230 {
eric@29 231 int result = 0;
eric@29 232
eric@10 233 u32 image_length, image_width;
eric@32 234 u32 dest_image_length, dest_image_width;
eric@10 235 #ifdef CHECK_DEPTH
eric@10 236 u32 image_depth;
eric@10 237 #endif
eric@29 238
eric@29 239 u16 samples_per_pixel;
eric@10 240 u16 bits_per_sample;
eric@10 241 u16 planar_config;
eric@32 242
eric@10 243 u16 resolution_unit;
eric@10 244 float x_resolution, y_resolution;
eric@32 245 float dest_x_resolution, dest_y_resolution;
eric@32 246
eric@28 247 int width_points, height_points; /* really 1/72 inch units rather than
eric@28 248 points */
eric@28 249
eric@42 250 Rect rect;
eric@42 251 Bitmap *bitmap;
eric@42 252
eric@32 253 int row;
eric@10 254
eric@28 255 panda_page *page;
eric@28 256
eric@28 257 int tiff_temp_fd;
eric@28 258 char tiff_temp_fn [] = "/var/tmp/tiff2pdf-XXXXXX\0";
eric@28 259 TIFF *tiff_temp;
eric@28 260
eric@28 261 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
eric@28 262 two zeros, three spaces, two brackets, and a NULL.
eric@28 263 Added an extra ten characters just in case. */
eric@28 264
eric@10 265 if (! TIFFSetDirectory (in, image - 1))
eric@10 266 {
eric@10 267 fprintf (stderr, "can't find page %d of input file\n", image);
eric@10 268 goto fail;
eric@10 269 }
eric@10 270 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
eric@10 271 {
eric@10 272 fprintf (stderr, "can't get image length\n");
eric@10 273 goto fail;
eric@10 274 }
eric@10 275 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
eric@10 276 {
eric@10 277 fprintf (stderr, "can't get image width\n");
eric@10 278 goto fail;
eric@10 279 }
eric@29 280
eric@29 281 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
eric@29 282 {
eric@29 283 fprintf (stderr, "can't get samples per pixel\n");
eric@29 284 goto fail;
eric@29 285 }
eric@29 286
eric@10 287 #ifdef CHECK_DEPTH
eric@10 288 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
eric@10 289 {
eric@10 290 fprintf (stderr, "can't get image depth\n");
eric@10 291 goto fail;
eric@10 292 }
eric@10 293 #endif
eric@10 294
eric@10 295 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
eric@10 296 {
eric@10 297 fprintf (stderr, "can't get bits per sample\n");
eric@10 298 goto fail;
eric@10 299 }
eric@10 300
eric@10 301 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
eric@10 302 planar_config = 1;
eric@10 303
eric@10 304 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
eric@10 305 resolution_unit = 2;
eric@10 306 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
eric@10 307 x_resolution = 300;
eric@10 308 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
eric@10 309 y_resolution = 300;
eric@10 310
eric@29 311 if (samples_per_pixel != 1)
eric@29 312 {
eric@29 313 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
eric@29 314 goto fail;
eric@29 315 }
eric@29 316
eric@10 317 #ifdef CHECK_DEPTH
eric@10 318 if (image_depth != 1)
eric@10 319 {
eric@10 320 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
eric@10 321 goto fail;
eric@10 322 }
eric@10 323 #endif
eric@10 324
eric@10 325 if (bits_per_sample != 1)
eric@10 326 {
eric@10 327 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
eric@10 328 goto fail;
eric@10 329 }
eric@10 330
eric@10 331 if (planar_config != 1)
eric@10 332 {
eric@10 333 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
eric@10 334 goto fail;
eric@10 335 }
eric@10 336
eric@36 337 if (input_attributes.has_resolution)
eric@32 338 {
eric@36 339 x_resolution = input_attributes.x_resolution;
eric@36 340 y_resolution = input_attributes.y_resolution;
eric@32 341 }
eric@32 342
eric@32 343 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
eric@32 344 {
eric@32 345 dest_image_width = image_length;
eric@32 346 dest_image_length = image_width;
eric@32 347 dest_x_resolution = y_resolution;
eric@32 348 dest_y_resolution = x_resolution;
eric@32 349 SWAP (int, width_points, height_points);
eric@32 350 }
eric@32 351 else
eric@32 352 {
eric@32 353 dest_image_width = image_width;
eric@32 354 dest_image_length = image_length;
eric@32 355 dest_x_resolution = x_resolution;
eric@32 356 dest_y_resolution = y_resolution;
eric@32 357 }
eric@32 358
eric@42 359 rect.min.x = 0;
eric@42 360 rect.min.y = 0;
eric@42 361 rect.max.x = image_width;
eric@42 362 rect.max.y = image_length;
eric@42 363
eric@42 364 bitmap = create_bitmap (& rect);
eric@42 365
eric@42 366 if (! bitmap)
eric@10 367 {
eric@32 368 fprintf (stderr, "can't allocate bitmap\n");
eric@10 369 goto fail;
eric@10 370 }
eric@10 371
eric@10 372 for (row = 0; row < image_length; row++)
eric@32 373 if (1 != TIFFReadScanline (in,
eric@43 374 bitmap->bits + row * bitmap->row_words,
eric@32 375 row,
eric@32 376 0))
eric@32 377 {
eric@32 378 fprintf (stderr, "can't read TIFF scanline\n");
eric@32 379 goto fail;
eric@32 380 }
eric@28 381
eric@42 382 bitmap = resize_bitmap (bitmap,
eric@42 383 x_resolution,
eric@42 384 y_resolution,
eric@42 385 input_attributes);
eric@42 386
eric@42 387 rotate_bitmap (bitmap,
eric@42 388 input_attributes);
eric@28 389
eric@36 390 tiff_temp_fd = mkstemp (tiff_temp_fn);
eric@36 391 if (tiff_temp_fd < 0)
eric@36 392 {
eric@36 393 fprintf (stderr, "can't create temporary TIFF file\n");
eric@36 394 goto fail;
eric@36 395 }
eric@36 396
eric@36 397 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
eric@36 398 if (! out)
eric@36 399 {
eric@36 400 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
eric@36 401 goto fail;
eric@36 402 }
eric@36 403
eric@42 404 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, rect_height (& bitmap->rect));
eric@42 405 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, rect_width (& bitmap->rect));
eric@36 406 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
eric@36 407
eric@42 408 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, rect_height (& bitmap->rect));
eric@36 409
eric@36 410 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
eric@36 411 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, dest_x_resolution);
eric@36 412 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, dest_y_resolution);
eric@36 413
eric@36 414 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
eric@36 415 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
eric@36 416 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
eric@36 417 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
eric@36 418
eric@42 419 for (row = 0; row < rect_height (& bitmap->rect); row++)
eric@32 420 if (1 != TIFFWriteScanline (tiff_temp,
eric@43 421 bitmap->bits + row * bitmap->row_words,
eric@32 422 row,
eric@32 423 0))
eric@32 424 {
eric@32 425 fprintf (stderr, "can't write TIFF scanline\n");
eric@32 426 goto fail;
eric@32 427 }
eric@32 428
eric@32 429 TIFFClose (tiff_temp);
eric@32 430
eric@42 431 width_points = (rect_width (& bitmap->rect) / dest_x_resolution) * POINTS_PER_INCH;
eric@42 432 height_points = (rect_height (& bitmap->rect) / dest_y_resolution) * POINTS_PER_INCH;
eric@36 433
eric@42 434 free_bitmap (bitmap);
eric@28 435
eric@36 436 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
eric@36 437 {
eric@36 438 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
eric@36 439 goto fail;
eric@36 440 }
eric@36 441
eric@28 442 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
eric@28 443
eric@28 444 page = panda_newpage (out->pdf, pagesize);
eric@28 445 panda_imagebox (out->pdf,
eric@28 446 page,
eric@28 447 0, /* top */
eric@28 448 0, /* left */
eric@28 449 height_points, /* bottom */
eric@28 450 width_points, /* right */
eric@28 451 tiff_temp_fn,
eric@28 452 panda_image_tiff);
eric@28 453
eric@29 454 result = 1;
eric@10 455
eric@10 456 fail:
eric@29 457 if (tiff_temp_fd)
eric@29 458 unlink (tiff_temp_fn);
eric@29 459 return (result);
eric@10 460 }
eric@10 461
eric@10 462
eric@10 463 int main (int argc, char *argv[])
eric@10 464 {
eric@10 465 int result = 0;
eric@10 466
eric@10 467 panda_init ();
eric@10 468
eric@10 469 if (argc != 2)
eric@10 470 {
eric@10 471 fprintf (stderr, "usage: %s spec\n", argv [0]);
eric@10 472 result = 1;
eric@10 473 goto fail;
eric@10 474 }
eric@10 475
eric@17 476 if (! parse_spec_file (argv [1]))
eric@26 477 {
eric@26 478 result = 2;
eric@26 479 goto fail;
eric@26 480 }
eric@26 481
eric@26 482 if (! process_specs ())
eric@26 483 {
eric@26 484 result = 3;
eric@26 485 goto fail;
eric@26 486 }
eric@17 487
eric@10 488 fail:
eric@10 489 close_tiff_input_file ();
eric@26 490 close_pdf_output_files ();
eric@10 491 return (result);
eric@10 492 }