Fri, 14 Mar 2003 08:57:40 +0000
specify page mode when file is closed rather than when it is initially created. if USE_OUTLINES but no bookmarks, use USE_NONE instead.
1 /*
2 * tumble: build a PDF file from image files
3 *
4 * Main program
5 * $Id: tumble.c,v 1.35 2003/03/14 00:57:40 eric Exp $
6 * Copyright 2001, 2002, 2003 Eric Smith <eric@brouhaha.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation. Note that permission is
11 * not granted to redistribute this program under the terms of any
12 * other version of the General Public License.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA
22 */
25 #include <stdarg.h>
26 #include <stdbool.h>
27 #include <stdint.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <unistd.h>
33 #include <tiffio.h>
34 #define TIFF_REVERSE_BITS
36 #include "bitblt.h"
37 #include "semantics.h"
38 #include "parser.tab.h"
39 #include "tumble.h"
40 #include "pdf.h"
43 #define MAX_INPUT_FILES 5000
45 #define POINTS_PER_INCH 72
47 /* page size limited by Acrobat Reader to 45 inches on a side */
48 #define PAGE_MAX_INCHES 45
49 #define PAGE_MAX_POINTS (PAGE_MAX_INCHES * POINTS_PER_INCH)
52 typedef struct output_file_t
53 {
54 struct output_file_t *next;
55 char *name;
56 pdf_file_handle pdf;
57 } output_file_t;
60 int verbose;
63 char *in_filename;
64 TIFF *in;
65 output_file_t *output_files;
66 output_file_t *out;
69 char *progname;
72 bool close_tiff_input_file (void);
73 bool close_pdf_output_files (void);
76 void usage (void)
77 {
78 fprintf (stderr, "\n");
79 fprintf (stderr, "tumble - Copyright 2001-2003 Eric Smith <eric@brouhaha.com>\n");
80 fprintf (stderr, "http://tumble.brouhaha.com/\n");
81 fprintf (stderr, "\n");
82 fprintf (stderr, "usage:\n");
83 fprintf (stderr, " %s [options] -s spec\n", progname);
84 fprintf (stderr, " %s [options] <input.tif>... -o <output.pdf>\n", progname);
85 fprintf (stderr, "options:\n");
86 fprintf (stderr, " -v verbose\n");
87 fprintf (stderr, " -b fmt create bookmarks\n");
88 fprintf (stderr, "bookmark format:\n");
89 fprintf (stderr, " %%F file name (sans suffix)\n");
90 fprintf (stderr, " %%p page number\n");
91 }
94 /* generate fatal error message to stderr, doesn't return */
95 void fatal (int ret, char *format, ...)
96 {
97 va_list ap;
99 fprintf (stderr, "fatal error");
100 if (format)
101 {
102 fprintf (stderr, ": ");
103 va_start (ap, format);
104 vfprintf (stderr, format, ap);
105 va_end (ap);
106 }
107 else
108 fprintf (stderr, "\n");
109 if (ret == 1)
110 usage ();
111 close_tiff_input_file ();
112 close_pdf_output_files ();
113 exit (ret);
114 }
117 bool close_tiff_input_file (void)
118 {
119 if (in)
120 {
121 free (in_filename);
122 TIFFClose (in);
123 }
124 in = NULL;
125 in_filename = NULL;
126 return (1);
127 }
130 bool open_tiff_input_file (char *name)
131 {
132 if (in)
133 {
134 if (strcmp (name, in_filename) == 0)
135 return (1);
136 close_tiff_input_file ();
137 }
138 in_filename = strdup (name);
139 if (! in_filename)
140 {
141 fprintf (stderr, "can't strdup input filename '%s'\n", name);
142 return (0);
143 }
144 in = TIFFOpen (name, "r");
145 if (! in)
146 {
147 fprintf (stderr, "can't open input file '%s'\n", name);
148 free (in_filename);
149 return (0);
150 }
151 return (1);
152 }
155 bool close_pdf_output_files (void)
156 {
157 output_file_t *o, *n;
159 for (o = output_files; o; o = n)
160 {
161 n = o->next;
162 pdf_close (o->pdf, PDF_PAGE_MODE_USE_OUTLINES);
163 free (o->name);
164 free (o);
165 }
166 out = NULL;
167 output_files = NULL;
168 return (1);
169 }
171 bool open_pdf_output_file (char *name,
172 pdf_file_attributes_t *attributes)
173 {
174 output_file_t *o;
176 if (out && (strcmp (name, out->name) == 0))
177 return (1);
178 for (o = output_files; o; o = o->next)
179 if (strcmp (name, o->name) == 0)
180 {
181 out = o;
182 return (1);
183 }
184 o = calloc (1, sizeof (output_file_t));
185 if (! o)
186 {
187 fprintf (stderr, "can't calloc output file struct for '%s'\n", name);
188 return (0);
189 }
191 o->name = strdup (name);
192 if (! o->name)
193 {
194 fprintf (stderr, "can't strdup output filename '%s'\n", name);
195 free (o);
196 return (0);
197 }
199 o->pdf = pdf_create (name);
200 if (! o->pdf)
201 {
202 fprintf (stderr, "can't open output file '%s'\n", name);
203 free (o->name);
204 free (o);
205 return (0);
206 }
208 if (attributes->author)
209 pdf_set_author (o->pdf, attributes->author);
210 if (attributes->creator)
211 pdf_set_creator (o->pdf, attributes->creator);
212 if (attributes->title)
213 pdf_set_title (o->pdf, attributes->title);
214 if (attributes->subject)
215 pdf_set_subject (o->pdf, attributes->subject);
216 if (attributes->keywords)
217 pdf_set_keywords (o->pdf, attributes->keywords);
219 /* prepend new output file onto list */
220 o->next = output_files;
221 output_files = o;
223 out = o;
224 return (1);
225 }
228 /* frees original! */
229 static Bitmap *resize_bitmap (Bitmap *src,
230 double x_resolution,
231 double y_resolution,
232 input_attributes_t input_attributes)
233 {
234 Rect src_rect;
235 Point dest_min;
236 Bitmap *dest;
238 int width_pixels = input_attributes.page_size.width * x_resolution;
239 int height_pixels = input_attributes.page_size.height * y_resolution;
241 src_rect.min.x = (rect_width (& src->rect) - width_pixels) / 2;
242 src_rect.min.y = (rect_height (& src->rect) - height_pixels) / 2;
243 src_rect.max.x = src_rect.min.x + width_pixels;
244 src_rect.max.y = src_rect.min.y + height_pixels;
246 dest_min.x = 0;
247 dest_min.y = 0;
249 dest = bitblt (src, & src_rect, NULL, & dest_min, TF_SRC, 0);
250 free_bitmap (src);
251 return (dest);
252 }
255 /* "in place" rotation */
256 static void rotate_bitmap (Bitmap *src,
257 input_attributes_t input_attributes)
258 {
259 switch (input_attributes.rotation)
260 {
261 case 0: break;
262 case 90: rot_90 (src); break;
263 case 180: rot_180 (src); break;
264 case 270: rot_270 (src); break;
265 default:
266 fprintf (stderr, "rotation must be 0, 90, 180, or 270\n");
267 }
268 }
271 #define SWAP(type,a,b) do { type temp; temp = a; a = b; b = temp; } while (0)
274 bool last_tiff_page (void)
275 {
276 return (TIFFLastDirectory (in));
277 }
280 static pdf_page_handle process_tiff_page (int image, /* range 1 .. n */
281 input_attributes_t input_attributes)
282 {
283 uint32_t image_length, image_width;
284 uint32_t dest_image_length, dest_image_width;
285 #ifdef CHECK_DEPTH
286 uint32_t image_depth;
287 #endif
289 uint16_t samples_per_pixel;
290 uint16_t bits_per_sample;
291 uint16_t planar_config;
293 uint16_t resolution_unit;
294 float x_resolution, y_resolution;
295 double dest_x_resolution, dest_y_resolution;
297 double width_points, height_points; /* really 1/72 inch units rather than
298 points */
300 Rect rect;
301 Bitmap *bitmap = NULL;
303 int row;
305 pdf_page_handle page = NULL;
307 if (! TIFFSetDirectory (in, image - 1))
308 {
309 fprintf (stderr, "can't find page %d of input file\n", image);
310 goto fail;
311 }
312 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
313 {
314 fprintf (stderr, "can't get image length\n");
315 goto fail;
316 }
317 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
318 {
319 fprintf (stderr, "can't get image width\n");
320 goto fail;
321 }
323 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
324 {
325 fprintf (stderr, "can't get samples per pixel\n");
326 goto fail;
327 }
329 #ifdef CHECK_DEPTH
330 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
331 {
332 fprintf (stderr, "can't get image depth\n");
333 goto fail;
334 }
335 #endif
337 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
338 {
339 fprintf (stderr, "can't get bits per sample\n");
340 goto fail;
341 }
343 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
344 planar_config = 1;
346 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
347 resolution_unit = 2;
348 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
349 x_resolution = 300;
350 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
351 y_resolution = 300;
353 if (samples_per_pixel != 1)
354 {
355 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
356 goto fail;
357 }
359 #ifdef CHECK_DEPTH
360 if (image_depth != 1)
361 {
362 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
363 goto fail;
364 }
365 #endif
367 if (bits_per_sample != 1)
368 {
369 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
370 goto fail;
371 }
373 if (planar_config != 1)
374 {
375 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
376 goto fail;
377 }
379 if (input_attributes.has_resolution)
380 {
381 x_resolution = input_attributes.x_resolution;
382 y_resolution = input_attributes.y_resolution;
383 }
385 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
386 {
387 dest_image_width = image_length;
388 dest_image_length = image_width;
389 dest_x_resolution = y_resolution;
390 dest_y_resolution = x_resolution;
391 SWAP (double, width_points, height_points); /* $$$ not yet set!!! */
392 }
393 else
394 {
395 dest_image_width = image_width;
396 dest_image_length = image_length;
397 dest_x_resolution = x_resolution;
398 dest_y_resolution = y_resolution;
399 }
401 rect.min.x = 0;
402 rect.min.y = 0;
403 rect.max.x = image_width;
404 rect.max.y = image_length;
406 bitmap = create_bitmap (& rect);
408 if (! bitmap)
409 {
410 fprintf (stderr, "can't allocate bitmap\n");
411 goto fail;
412 }
414 for (row = 0; row < image_length; row++)
415 if (1 != TIFFReadScanline (in,
416 bitmap->bits + row * bitmap->row_words,
417 row,
418 0))
419 {
420 fprintf (stderr, "can't read TIFF scanline\n");
421 goto fail;
422 }
424 #ifdef TIFF_REVERSE_BITS
425 reverse_bits ((uint8_t *) bitmap->bits,
426 image_length * bitmap->row_words * sizeof (word_t));
427 #endif /* TIFF_REVERSE_BITS */
429 #if 0
430 if (input_attributes.has_page_size)
431 bitmap = resize_bitmap (bitmap,
432 x_resolution,
433 y_resolution,
434 input_attributes);
435 #endif
437 rotate_bitmap (bitmap,
438 input_attributes);
440 width_points = (rect_width (& bitmap->rect) / dest_x_resolution) * POINTS_PER_INCH;
441 height_points = (rect_height (& bitmap->rect) / dest_y_resolution) * POINTS_PER_INCH;
443 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
444 {
445 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
446 goto fail;
447 }
449 page = pdf_new_page (out->pdf, width_points, height_points);
451 #if 0
452 pdf_write_text (page);
453 #else
454 pdf_write_g4_fax_image (page,
455 0, 0, /* x, y */
456 width_points, height_points,
457 bitmap,
458 0, /* ImageMask */
459 0, 0, 0, /* r, g, b */
460 0); /* BlackIs1 */
461 #endif
463 if (bitmap)
464 free_bitmap (bitmap);
465 return (page);
467 fail:
468 if (bitmap)
469 free_bitmap (bitmap);
471 return (NULL);
472 }
475 #if 0
476 pdf_page_handle process_jpeg_page (int image, /* range 1 .. n */
477 input_attributes_t input_attributes)
478 {
479 FILE *f;
480 pdf_page_handle page;
482 f = fopen (filename, "rb");
483 if (! f)
484 fatal ("error opening input file '%s'\n", filename);
486 page = pdf_new_page (out->pdf, width_points, height_points);
488 pdf_write_jpeg_image (page,
489 0, 0, /* x, y */
490 width_points, height_points,
491 f);
493 return (page);
494 }
495 #endif
498 bool process_page (int image, /* range 1 .. n */
499 input_attributes_t input_attributes,
500 bookmark_t *bookmarks,
501 page_label_t *page_label)
502 {
503 pdf_page_handle page;
505 page = process_tiff_page (image, input_attributes);
507 while (bookmarks)
508 {
509 /* $$$ need to handle level here */
510 pdf_new_bookmark (NULL, bookmarks->name, 0, page);
511 bookmarks = bookmarks->next;
512 }
514 if (page_label)
515 pdf_new_page_label (out->pdf,
516 page_label->page_index,
517 page_label->base,
518 page_label->count,
519 page_label->style,
520 page_label->prefix);
522 return (page != NULL);
523 }
526 #define MAX_BOOKMARK_NAME_LEN 500
529 static int filename_length_without_suffix (char *in_fn)
530 {
531 char *p;
532 int len = strlen (in_fn);
534 p = strrchr (in_fn, '.');
535 if (p && ((strcasecmp (p, ".tif") == 0) ||
536 (strcasecmp (p, ".tiff") == 0)))
537 return (p - in_fn);
538 return (len);
539 }
542 /* $$$ this function should ensure that it doesn't overflow the name string! */
543 static void generate_bookmark_name (char *name,
544 char *bookmark_fmt,
545 char *in_fn,
546 int page)
547 {
548 bool meta = 0;
549 int len;
551 while (*bookmark_fmt)
552 {
553 if (meta)
554 {
555 meta = 0;
556 switch (*bookmark_fmt)
557 {
558 case '%':
559 *(name++) = '%';
560 break;
561 case 'F':
562 len = filename_length_without_suffix (in_fn);
563 strncpy (name, in_fn, len);
564 name += len;
565 break;
566 case 'p':
567 sprintf (name, "%d", page);
568 name += strlen (name);
569 break;
570 default:
571 break;
572 }
573 }
574 else
575 switch (*bookmark_fmt)
576 {
577 case '%':
578 meta = 1;
579 break;
580 default:
581 *(name++) = *bookmark_fmt;
582 }
583 bookmark_fmt++;
584 }
585 *name = '\0';
586 }
589 void main_args (char *out_fn,
590 int inf_count,
591 char **in_fn,
592 char *bookmark_fmt)
593 {
594 int i, ip;
595 input_attributes_t input_attributes;
596 pdf_file_attributes_t output_attributes;
597 bookmark_t bookmark;
598 char bookmark_name [MAX_BOOKMARK_NAME_LEN];
600 bookmark.next = NULL;
601 bookmark.level = 1;
602 bookmark.name = & bookmark_name [0];
604 memset (& input_attributes, 0, sizeof (input_attributes));
605 memset (& output_attributes, 0, sizeof (output_attributes));
607 if (! open_pdf_output_file (out_fn, & output_attributes))
608 fatal (3, "error opening output file \"%s\"\n", out_fn);
609 for (i = 0; i < inf_count; i++)
610 {
611 if (! open_tiff_input_file (in_fn [i]))
612 fatal (3, "error opening input file \"%s\"\n", in_fn [i]);
613 for (ip = 1;; ip++)
614 {
615 fprintf (stderr, "processing page %d of file \"%s\"\r", ip, in_fn [i]);
616 if (bookmark_fmt)
617 generate_bookmark_name (& bookmark_name [0],
618 bookmark_fmt,
619 in_fn [i],
620 ip);
621 if (! process_page (ip, input_attributes,
622 bookmark_fmt ? & bookmark : NULL,
623 NULL))
624 fatal (3, "error processing page %d of input file \"%s\"\n", ip, in_fn [i]);
625 if (last_tiff_page ())
626 break;
627 }
628 if (verbose)
629 fprintf (stderr, "processed %d pages of input file \"%s\"\n", ip, in_fn [i]);
630 if (! close_tiff_input_file ())
631 fatal (3, "error closing input file \"%s\"\n", in_fn [i]);
632 }
633 if (! close_pdf_output_files ())
634 fatal (3, "error closing output file \"%s\"\n", out_fn);
635 }
638 void main_spec (char *spec_fn)
639 {
640 if (! parse_spec_file (spec_fn))
641 fatal (2, "error parsing spec file\n");
642 if (! process_specs ())
643 fatal (3, "error processing spec file\n");
644 }
647 int main (int argc, char *argv[])
648 {
649 char *spec_fn = NULL;
650 char *out_fn = NULL;
651 char *bookmark_fmt = NULL;
652 int inf_count = 0;
653 char *in_fn [MAX_INPUT_FILES];
655 progname = argv [0];
657 pdf_init ();
659 while (--argc)
660 {
661 if (argv [1][0] == '-')
662 {
663 if (strcmp (argv [1], "-v") == 0)
664 verbose++;
665 else if (strcmp (argv [1], "-o") == 0)
666 {
667 if (argc)
668 {
669 argc--;
670 argv++;
671 out_fn = argv [1];
672 }
673 else
674 fatal (1, "missing filename after \"-o\" option\n");
675 }
676 else if (strcmp (argv [1], "-s") == 0)
677 {
678 if (argc)
679 {
680 argc--;
681 argv++;
682 spec_fn = argv [1];
683 }
684 else
685 fatal (1, "missing filename after \"-s\" option\n");
686 }
687 else if (strcmp (argv [1], "-b") == 0)
688 {
689 if (argc)
690 {
691 argc--;
692 argv++;
693 bookmark_fmt = argv [1];
694 }
695 else
696 fatal (1, "missing format string after \"-b\" option\n");
697 }
698 else
699 fatal (1, "unrecognized option \"%s\"\n", argv [1]);
700 }
701 else if (inf_count < MAX_INPUT_FILES)
702 in_fn [inf_count++] = argv [1];
703 else
704 fatal (1, "exceeded maximum of %d input files\n", MAX_INPUT_FILES);
705 argv++;
706 }
708 if (! ((! out_fn) ^ (! spec_fn)))
709 fatal (1, "either a spec file or an output file (but not both) must be specified\n");
711 if (out_fn && ! inf_count)
712 fatal (1, "no input files specified\n");
714 if (spec_fn && inf_count)
715 fatal (1, "if spec file is provided, input files can't be specified as arguments\n");
717 if (spec_fn)
718 main_spec (spec_fn);
719 else
720 main_args (out_fn, inf_count, in_fn, bookmark_fmt);
722 close_tiff_input_file ();
723 close_pdf_output_files ();
724 exit (0);
725 }