t2p.c

Tue, 01 Jan 2002 06:11:43 +0000

author
eric
date
Tue, 01 Jan 2002 06:11:43 +0000
changeset 30
35fad7ec7732
parent 29
c904ffd6a1cf
child 32
3aac131058da
permissions
-rw-r--r--

add support for PDF file attributes: author, creator, title, etc.

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@30 8 * $Id: t2p.c,v 1.11 2001/12/31 22:11:43 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@23 182 boolean process_page (int image, /* range 1 .. n */
eric@23 183 input_attributes_t input_attributes,
eric@25 184 bookmark_t *bookmarks)
eric@10 185 {
eric@29 186 int result = 0;
eric@29 187
eric@10 188 u32 image_length, image_width;
eric@10 189 #ifdef CHECK_DEPTH
eric@10 190 u32 image_depth;
eric@10 191 #endif
eric@29 192
eric@29 193 u16 samples_per_pixel;
eric@10 194 u16 bits_per_sample;
eric@10 195 u16 planar_config;
eric@10 196 u16 resolution_unit;
eric@10 197 float x_resolution, y_resolution;
eric@28 198 int width_points, height_points; /* really 1/72 inch units rather than
eric@28 199 points */
eric@28 200
eric@10 201
eric@10 202 char *buffer;
eric@10 203 u32 row;
eric@10 204
eric@28 205 panda_page *page;
eric@28 206
eric@28 207 int tiff_temp_fd;
eric@28 208 char tiff_temp_fn [] = "/var/tmp/tiff2pdf-XXXXXX\0";
eric@28 209 TIFF *tiff_temp;
eric@28 210
eric@28 211 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
eric@28 212 two zeros, three spaces, two brackets, and a NULL.
eric@28 213 Added an extra ten characters just in case. */
eric@28 214
eric@10 215 if (! TIFFSetDirectory (in, image - 1))
eric@10 216 {
eric@10 217 fprintf (stderr, "can't find page %d of input file\n", image);
eric@10 218 goto fail;
eric@10 219 }
eric@10 220 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
eric@10 221 {
eric@10 222 fprintf (stderr, "can't get image length\n");
eric@10 223 goto fail;
eric@10 224 }
eric@10 225 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
eric@10 226 {
eric@10 227 fprintf (stderr, "can't get image width\n");
eric@10 228 goto fail;
eric@10 229 }
eric@29 230
eric@29 231 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
eric@29 232 {
eric@29 233 fprintf (stderr, "can't get samples per pixel\n");
eric@29 234 goto fail;
eric@29 235 }
eric@29 236
eric@10 237 #ifdef CHECK_DEPTH
eric@10 238 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
eric@10 239 {
eric@10 240 fprintf (stderr, "can't get image depth\n");
eric@10 241 goto fail;
eric@10 242 }
eric@10 243 #endif
eric@10 244
eric@10 245 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
eric@10 246 {
eric@10 247 fprintf (stderr, "can't get bits per sample\n");
eric@10 248 goto fail;
eric@10 249 }
eric@10 250
eric@10 251 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
eric@10 252 planar_config = 1;
eric@10 253
eric@10 254 printf ("image length %u width %u, "
eric@10 255 #ifdef CHECK_DEPTH
eric@10 256 "depth %u, "
eric@10 257 #endif
eric@10 258 "planar config %u\n",
eric@10 259 image_length, image_width,
eric@10 260 #ifdef CHECK_DEPTH
eric@10 261 image_depth,
eric@10 262 #endif
eric@10 263 planar_config);
eric@10 264
eric@10 265 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
eric@10 266 resolution_unit = 2;
eric@10 267 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
eric@10 268 x_resolution = 300;
eric@10 269 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
eric@10 270 y_resolution = 300;
eric@10 271
eric@10 272 printf ("resolution unit %u, x resolution %f, y resolution %f\n",
eric@10 273 resolution_unit, x_resolution, y_resolution);
eric@10 274
eric@29 275 if (samples_per_pixel != 1)
eric@29 276 {
eric@29 277 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
eric@29 278 goto fail;
eric@29 279 }
eric@29 280
eric@10 281 #ifdef CHECK_DEPTH
eric@10 282 if (image_depth != 1)
eric@10 283 {
eric@10 284 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
eric@10 285 goto fail;
eric@10 286 }
eric@10 287 #endif
eric@10 288
eric@10 289 if (bits_per_sample != 1)
eric@10 290 {
eric@10 291 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
eric@10 292 goto fail;
eric@10 293 }
eric@10 294
eric@10 295 if (planar_config != 1)
eric@10 296 {
eric@10 297 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
eric@10 298 goto fail;
eric@10 299 }
eric@10 300
eric@28 301 tiff_temp_fd = mkstemp (tiff_temp_fn);
eric@28 302 if (tiff_temp_fd < 0)
eric@28 303 {
eric@28 304 fprintf (stderr, "can't create temporary TIFF file\n");
eric@28 305 goto fail;
eric@28 306 }
eric@10 307
eric@28 308 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
eric@28 309 if (! out)
eric@28 310 {
eric@28 311 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
eric@28 312 goto fail;
eric@28 313 }
eric@10 314
eric@28 315 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, image_length);
eric@28 316 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, image_width);
eric@28 317 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
eric@28 318
eric@28 319 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, image_length);
eric@10 320
eric@28 321 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
eric@28 322 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, x_resolution);
eric@28 323 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, y_resolution);
eric@28 324
eric@29 325 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
eric@28 326 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
eric@28 327 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
eric@28 328 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
eric@10 329
eric@10 330 buffer = _TIFFmalloc (TIFFScanlineSize (in));
eric@10 331 if (! buffer)
eric@10 332 {
eric@10 333 fprintf (stderr, "failed to allocate buffer\n");
eric@10 334 goto fail;
eric@10 335 }
eric@10 336
eric@10 337 for (row = 0; row < image_length; row++)
eric@10 338 {
eric@10 339 TIFFReadScanline (in, buffer, row, 0);
eric@28 340 TIFFWriteScanline (tiff_temp, buffer, row, 0);
eric@10 341 }
eric@10 342
eric@10 343 _TIFFfree (buffer);
eric@28 344 TIFFClose (tiff_temp);
eric@28 345
eric@29 346 width_points = (image_width / x_resolution) * POINTS_PER_INCH;
eric@29 347 height_points = (image_length / y_resolution) * POINTS_PER_INCH;
eric@28 348
eric@28 349 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
eric@28 350 {
eric@28 351 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
eric@28 352 goto fail;
eric@28 353 }
eric@28 354
eric@28 355 printf ("height_points %d, width_points %d\n", height_points, width_points);
eric@28 356
eric@28 357 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
eric@28 358
eric@28 359 page = panda_newpage (out->pdf, pagesize);
eric@28 360 panda_imagebox (out->pdf,
eric@28 361 page,
eric@28 362 0, /* top */
eric@28 363 0, /* left */
eric@28 364 height_points, /* bottom */
eric@28 365 width_points, /* right */
eric@28 366 tiff_temp_fn,
eric@28 367 panda_image_tiff);
eric@28 368
eric@29 369 result = 1;
eric@10 370
eric@10 371 fail:
eric@29 372 if (tiff_temp_fd)
eric@29 373 unlink (tiff_temp_fn);
eric@29 374 return (result);
eric@10 375 }
eric@10 376
eric@10 377
eric@10 378 int main (int argc, char *argv[])
eric@10 379 {
eric@10 380 int result = 0;
eric@10 381
eric@10 382 panda_init ();
eric@10 383
eric@10 384 if (argc != 2)
eric@10 385 {
eric@10 386 fprintf (stderr, "usage: %s spec\n", argv [0]);
eric@10 387 result = 1;
eric@10 388 goto fail;
eric@10 389 }
eric@10 390
eric@17 391 if (! parse_spec_file (argv [1]))
eric@26 392 {
eric@26 393 result = 2;
eric@26 394 goto fail;
eric@26 395 }
eric@26 396
eric@26 397 if (! process_specs ())
eric@26 398 {
eric@26 399 result = 3;
eric@26 400 goto fail;
eric@26 401 }
eric@17 402
eric@10 403 fail:
eric@10 404 close_tiff_input_file ();
eric@26 405 close_pdf_output_files ();
eric@10 406 return (result);
eric@10 407 }