Thu, 20 Feb 2003 12:20:28 +0000
fix includes.
1 /*
2 * t2p: Create a PDF file from the contents of one or more TIFF
3 * bilevel image files. The images in the resulting PDF file
4 * will be compressed using ITU-T T.6 (G4) fax encoding.
5 *
6 * Main program
7 * $Id: tumble.c,v 1.21 2003/01/21 10:39:55 eric Exp $
8 * Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation. Note that permission is
13 * not granted to redistribute this program under the terms of any
14 * other version of the General Public License.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA */
26 #include <stdarg.h>
27 #include <stdbool.h>
28 #include <stdint.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <unistd.h>
33 #include <tiffio.h>
34 #define TIFF_REVERSE_BITS
36 #include <panda/functions.h>
37 #include <panda/constants.h>
39 #include "bitblt.h"
40 #include "semantics.h"
41 #include "parser.tab.h"
42 #include "t2p.h"
45 #define MAX_INPUT_FILES 5000
47 #define POINTS_PER_INCH 72
49 /* page size limited by Acrobat Reader to 45 inches on a side */
50 #define PAGE_MAX_INCHES 45
51 #define PAGE_MAX_POINTS (PAGE_MAX_INCHES * POINTS_PER_INCH)
54 typedef struct output_file_t
55 {
56 struct output_file_t *next;
57 char *name;
58 panda_pdf *pdf;
59 } output_file_t;
62 int verbose;
65 char *in_filename;
66 TIFF *in;
67 output_file_t *output_files;
68 output_file_t *out;
69 /* panda_pdf *out; */
72 char *progname;
75 bool close_tiff_input_file (void);
76 bool close_pdf_output_files (void);
79 void usage (void)
80 {
81 fprintf (stderr, "\n");
82 fprintf (stderr, "t2p - Copyright 2001-2003 Eric Smith <eric@brouhaha.com>\n");
83 fprintf (stderr, "http://www.brouhaha.com/~eric/software/t2p/\n");
84 fprintf (stderr, "\n");
85 fprintf (stderr, "usage:\n");
86 fprintf (stderr, " %s [options] -s spec\n", progname);
87 fprintf (stderr, " %s [options] <input.tif>... -o <output.pdf>\n", progname);
88 fprintf (stderr, "options:\n");
89 fprintf (stderr, " -v verbose\n");
90 }
93 /* generate fatal error message to stderr, doesn't return */
94 void fatal (int ret, char *format, ...)
95 {
96 va_list ap;
98 fprintf (stderr, "fatal error");
99 if (format)
100 {
101 fprintf (stderr, ": ");
102 va_start (ap, format);
103 vfprintf (stderr, format, ap);
104 va_end (ap);
105 }
106 else
107 fprintf (stderr, "\n");
108 if (ret == 1)
109 usage ();
110 close_tiff_input_file ();
111 close_pdf_output_files ();
112 exit (ret);
113 }
116 bool close_tiff_input_file (void)
117 {
118 if (in)
119 {
120 free (in_filename);
121 TIFFClose (in);
122 }
123 in = NULL;
124 in_filename = NULL;
125 return (1);
126 }
129 bool open_tiff_input_file (char *name)
130 {
131 if (in)
132 {
133 if (strcmp (name, in_filename) == 0)
134 return (1);
135 close_tiff_input_file ();
136 }
137 in_filename = strdup (name);
138 if (! in_filename)
139 {
140 fprintf (stderr, "can't strdup input filename '%s'\n", name);
141 return (0);
142 }
143 in = TIFFOpen (name, "r");
144 if (! in)
145 {
146 fprintf (stderr, "can't open input file '%s'\n", name);
147 free (in_filename);
148 return (0);
149 }
150 return (1);
151 }
154 bool close_pdf_output_files (void)
155 {
156 output_file_t *o, *n;
158 for (o = output_files; o; o = n)
159 {
160 n = o->next;
161 panda_close (o->pdf);
162 free (o->name);
163 free (o);
164 }
165 out = NULL;
166 output_files = NULL;
167 return (1);
168 }
170 bool open_pdf_output_file (char *name,
171 pdf_file_attributes_t *attributes)
172 {
173 output_file_t *o;
175 if (out && (strcmp (name, out->name) == 0))
176 return (1);
177 for (o = output_files; o; o = o->next)
178 if (strcmp (name, o->name) == 0)
179 {
180 out = o;
181 return (1);
182 }
183 o = calloc (1, sizeof (output_file_t));
184 if (! o)
185 {
186 fprintf (stderr, "can't calloc output file struct for '%s'\n", name);
187 return (0);
188 }
190 o->name = strdup (name);
191 if (! o->name)
192 {
193 fprintf (stderr, "can't strdup output filename '%s'\n", name);
194 free (o);
195 return (0);
196 }
198 o->pdf = panda_open (name, "w");
199 if (! o->pdf)
200 {
201 fprintf (stderr, "can't open output file '%s'\n", name);
202 free (o->name);
203 free (o);
204 return (0);
205 }
207 if (attributes->author)
208 panda_setauthor (o->pdf, attributes->author);
209 if (attributes->creator)
210 panda_setcreator (o->pdf, attributes->creator);
211 if (attributes->title)
212 panda_settitle (o->pdf, attributes->title);
213 if (attributes->subject)
214 panda_setsubject (o->pdf, attributes->subject);
215 if (attributes->keywords)
216 panda_setkeywords (o->pdf, attributes->keywords);
218 /* prepend new output file onto list */
219 o->next = output_files;
220 output_files = o;
222 out = o;
223 return (1);
224 }
227 void process_page_numbers (int page_index,
228 int count,
229 int base,
230 page_label_t *page_label)
231 {
232 }
235 /* frees original! */
236 static Bitmap *resize_bitmap (Bitmap *src,
237 float x_resolution,
238 float y_resolution,
239 input_attributes_t input_attributes)
240 {
241 Rect src_rect;
242 Point dest_min;
243 Bitmap *dest;
245 int width_pixels = input_attributes.page_size.width * x_resolution;
246 int height_pixels = input_attributes.page_size.height * y_resolution;
248 src_rect.min.x = (rect_width (& src->rect) - width_pixels) / 2;
249 src_rect.min.y = (rect_height (& src->rect) - height_pixels) / 2;
250 src_rect.max.x = src_rect.min.x + width_pixels;
251 src_rect.max.y = src_rect.min.y + height_pixels;
253 dest_min.x = 0;
254 dest_min.y = 0;
256 dest = bitblt (src, & src_rect, NULL, & dest_min, TF_SRC, 0);
257 free_bitmap (src);
258 return (dest);
259 }
262 /* "in place" rotation */
263 static void rotate_bitmap (Bitmap *src,
264 input_attributes_t input_attributes)
265 {
266 switch (input_attributes.rotation)
267 {
268 case 0: break;
269 case 90: rot_90 (src); break;
270 case 180: rot_180 (src); break;
271 case 270: rot_270 (src); break;
272 default:
273 fprintf (stderr, "rotation must be 0, 90, 180, or 270\n");
274 }
275 }
278 #define SWAP(type,a,b) do { type temp; temp = a; a = b; b = temp; } while (0)
281 bool last_tiff_page (void)
282 {
283 return (TIFFLastDirectory (in));
284 }
287 bool process_page (int image, /* range 1 .. n */
288 input_attributes_t input_attributes,
289 bookmark_t *bookmarks)
290 {
291 int result = 0;
293 uint32_t image_length, image_width;
294 uint32_t dest_image_length, dest_image_width;
295 #ifdef CHECK_DEPTH
296 uint32_t image_depth;
297 #endif
299 uint16_t samples_per_pixel;
300 uint16_t bits_per_sample;
301 uint16_t planar_config;
303 uint16_t resolution_unit;
304 float x_resolution, y_resolution;
305 float dest_x_resolution, dest_y_resolution;
307 int width_points, height_points; /* really 1/72 inch units rather than
308 points */
310 Rect rect;
311 Bitmap *bitmap;
313 int row;
315 panda_page *page;
317 int tiff_temp_fd;
318 char tiff_temp_fn [] = "/var/tmp/t2p-XXXXXX\0";
319 TIFF *tiff_temp;
321 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
322 two zeros, three spaces, two brackets, and a NULL.
323 Added an extra ten characters just in case. */
325 if (! TIFFSetDirectory (in, image - 1))
326 {
327 fprintf (stderr, "can't find page %d of input file\n", image);
328 goto fail;
329 }
330 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
331 {
332 fprintf (stderr, "can't get image length\n");
333 goto fail;
334 }
335 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
336 {
337 fprintf (stderr, "can't get image width\n");
338 goto fail;
339 }
341 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
342 {
343 fprintf (stderr, "can't get samples per pixel\n");
344 goto fail;
345 }
347 #ifdef CHECK_DEPTH
348 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
349 {
350 fprintf (stderr, "can't get image depth\n");
351 goto fail;
352 }
353 #endif
355 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
356 {
357 fprintf (stderr, "can't get bits per sample\n");
358 goto fail;
359 }
361 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
362 planar_config = 1;
364 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
365 resolution_unit = 2;
366 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
367 x_resolution = 300;
368 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
369 y_resolution = 300;
371 if (samples_per_pixel != 1)
372 {
373 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
374 goto fail;
375 }
377 #ifdef CHECK_DEPTH
378 if (image_depth != 1)
379 {
380 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
381 goto fail;
382 }
383 #endif
385 if (bits_per_sample != 1)
386 {
387 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
388 goto fail;
389 }
391 if (planar_config != 1)
392 {
393 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
394 goto fail;
395 }
397 if (input_attributes.has_resolution)
398 {
399 x_resolution = input_attributes.x_resolution;
400 y_resolution = input_attributes.y_resolution;
401 }
403 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
404 {
405 dest_image_width = image_length;
406 dest_image_length = image_width;
407 dest_x_resolution = y_resolution;
408 dest_y_resolution = x_resolution;
409 SWAP (int, width_points, height_points);
410 }
411 else
412 {
413 dest_image_width = image_width;
414 dest_image_length = image_length;
415 dest_x_resolution = x_resolution;
416 dest_y_resolution = y_resolution;
417 }
419 rect.min.x = 0;
420 rect.min.y = 0;
421 rect.max.x = image_width;
422 rect.max.y = image_length;
424 bitmap = create_bitmap (& rect);
426 if (! bitmap)
427 {
428 fprintf (stderr, "can't allocate bitmap\n");
429 goto fail;
430 }
432 for (row = 0; row < image_length; row++)
433 if (1 != TIFFReadScanline (in,
434 bitmap->bits + row * bitmap->row_words,
435 row,
436 0))
437 {
438 fprintf (stderr, "can't read TIFF scanline\n");
439 goto fail;
440 }
442 #ifdef TIFF_REVERSE_BITS
443 reverse_bits ((uint8_t *) bitmap->bits,
444 image_length * bitmap->row_words * sizeof (word_type));
445 #endif /* TIFF_REVERSE_BITS */
447 if (input_attributes.has_page_size)
448 bitmap = resize_bitmap (bitmap,
449 x_resolution,
450 y_resolution,
451 input_attributes);
453 rotate_bitmap (bitmap,
454 input_attributes);
456 tiff_temp_fd = mkstemp (tiff_temp_fn);
457 if (tiff_temp_fd < 0)
458 {
459 fprintf (stderr, "can't create temporary TIFF file\n");
460 goto fail;
461 }
463 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
464 if (! out)
465 {
466 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
467 goto fail;
468 }
470 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, rect_height (& bitmap->rect));
471 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, rect_width (& bitmap->rect));
472 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
474 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, rect_height (& bitmap->rect));
476 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
477 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, dest_x_resolution);
478 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, dest_y_resolution);
480 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
481 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
482 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
483 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
485 #ifdef TIFF_REVERSE_BITS
486 reverse_bits ((uint8_t *) bitmap->bits,
487 image_length * bitmap->row_words * sizeof (word_type));
488 #endif /* TIFF_REVERSE_BITS */
490 for (row = 0; row < rect_height (& bitmap->rect); row++)
491 if (1 != TIFFWriteScanline (tiff_temp,
492 bitmap->bits + row * bitmap->row_words,
493 row,
494 0))
495 {
496 fprintf (stderr, "can't write TIFF scanline\n");
497 goto fail;
498 }
500 TIFFClose (tiff_temp);
502 width_points = (rect_width (& bitmap->rect) / dest_x_resolution) * POINTS_PER_INCH;
503 height_points = (rect_height (& bitmap->rect) / dest_y_resolution) * POINTS_PER_INCH;
505 free_bitmap (bitmap);
507 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
508 {
509 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
510 goto fail;
511 }
513 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
515 page = panda_newpage (out->pdf, pagesize);
516 panda_imagebox (out->pdf,
517 page,
518 0, /* top */
519 0, /* left */
520 height_points, /* bottom */
521 width_points, /* right */
522 tiff_temp_fn,
523 panda_image_tiff);
525 result = 1;
527 fail:
528 if (tiff_temp_fd)
529 unlink (tiff_temp_fn);
530 return (result);
531 }
534 void main_args (char *out_fn, int inf_count, char **in_fn)
535 {
536 int i, ip;
537 input_attributes_t input_attributes;
538 pdf_file_attributes_t output_attributes;
540 memset (& input_attributes, 0, sizeof (input_attributes));
541 memset (& output_attributes, 0, sizeof (output_attributes));
543 if (! open_pdf_output_file (out_fn, & output_attributes))
544 fatal (3, "error opening output file \"%s\"\n", out_fn);
545 for (i = 0; i < inf_count; i++)
546 {
547 if (! open_tiff_input_file (in_fn [i]))
548 fatal (3, "error opening input file \"%s\"\n", in_fn [i]);
549 for (ip = 1;; ip++)
550 {
551 if (! process_page (ip, input_attributes, NULL))
552 fatal (3, "error processing page %d of input file \"%s\"\n", ip, in_fn [i]);
553 if (last_tiff_page ())
554 break;
555 }
556 if (verbose)
557 fprintf (stderr, "processed %d pages of input file \"%s\"\n", ip, in_fn [i]);
558 if (! close_tiff_input_file ())
559 fatal (3, "error closing input file \"%s\"\n", in_fn [i]);
560 }
561 if (! close_pdf_output_files ())
562 fatal (3, "error closing output file \"%s\"\n", out_fn);
563 }
566 void main_spec (char *spec_fn)
567 {
568 if (! parse_spec_file (spec_fn))
569 fatal (2, "error parsing spec file\n");
570 if (! process_specs ())
571 fatal (3, "error processing spec file\n");
572 }
575 int main (int argc, char *argv[])
576 {
577 char *spec_fn = NULL;
578 char *out_fn = NULL;
579 int inf_count = 0;
580 char *in_fn [MAX_INPUT_FILES];
582 progname = argv [0];
584 panda_init ();
586 while (--argc)
587 {
588 if (argv [1][0] == '-')
589 {
590 if (strcmp (argv [1], "-v") == 0)
591 verbose++;
592 else if (strcmp (argv [1], "-o") == 0)
593 {
594 if (argc)
595 {
596 argc--;
597 argv++;
598 out_fn = argv [1];
599 }
600 else
601 fatal (1, "missing filename after \"-o\" option\n");
602 }
603 else if (strcmp (argv [1], "-s") == 0)
604 {
605 if (argc)
606 {
607 argc--;
608 argv++;
609 spec_fn = argv [1];
610 }
611 else
612 fatal (1, "missing filename after \"-s\" option\n");
613 }
614 else
615 fatal (1, "unrecognized option \"%s\"\n", argv [1]);
616 }
617 else if (inf_count < MAX_INPUT_FILES)
618 in_fn [inf_count++] = argv [1];
619 else
620 fatal (1, "exceeded maximum of %d input files\n", MAX_INPUT_FILES);
621 argv++;
622 }
624 if (! ((! out_fn) ^ (! spec_fn)))
625 fatal (1, "either a spec file or an output file (but not both) must be specified\n");
627 if (out_fn && ! inf_count)
628 fatal (1, "no input files specified\n");
630 if (spec_fn && inf_count)
631 fatal (1, "if spec file is provided, input files can't be specified as arguments\n");
633 if (spec_fn)
634 main_spec (spec_fn);
635 else
636 main_args (out_fn, inf_count, in_fn);
638 close_tiff_input_file ();
639 close_pdf_output_files ();
640 exit (0);
641 }