tumble.c

Mon, 26 Aug 2002 05:43:49 +0000

author
eric
date
Mon, 26 Aug 2002 05:43:49 +0000
changeset 47
bfc6aaa089b0
parent 46
20fda1ec5f17
child 48
3d0be1c1c1b2
permissions
-rw-r--r--

fixed 'middle-endian' output from TIFFReadScanline

eric@10 1 /*
eric@44 2 * t2p: Create a PDF file from the contents of one or more TIFF
eric@44 3 * bilevel image files. The images in the resulting PDF file
eric@44 4 * will be compressed using ITU-T T.6 (G4) fax encoding.
eric@29 5 *
eric@10 6 * Main program
eric@47 7 * $Id: tumble.c,v 1.18 2002/08/25 21:43:49 eric Exp $
eric@10 8 * Copyright 2001 Eric Smith <eric@brouhaha.com>
eric@10 9 *
eric@10 10 * This program is free software; you can redistribute it and/or modify
eric@10 11 * it under the terms of the GNU General Public License version 2 as
eric@10 12 * published by the Free Software Foundation. Note that permission is
eric@10 13 * not granted to redistribute this program under the terms of any
eric@10 14 * other version of the General Public License.
eric@10 15 *
eric@10 16 * This program is distributed in the hope that it will be useful,
eric@10 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
eric@10 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
eric@10 19 * GNU General Public License for more details.
eric@10 20 *
eric@10 21 * You should have received a copy of the GNU General Public License
eric@10 22 * along with this program; if not, write to the Free Software
eric@44 23 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA */
eric@10 24
eric@10 25
eric@10 26 #include <stdio.h>
eric@28 27 #include <stdlib.h>
eric@28 28 #include <unistd.h>
eric@47 29
eric@10 30 #include <tiffio.h>
eric@47 31 #define TIFF_REVERSE_BITS
eric@47 32
eric@10 33 #include <panda/functions.h>
eric@10 34 #include <panda/constants.h>
eric@10 35
eric@10 36 #include "type.h"
eric@10 37 #include "bitblt.h"
eric@18 38 #include "semantics.h"
eric@10 39 #include "parser.tab.h"
eric@44 40 #include "t2p.h"
eric@10 41
eric@10 42
eric@28 43 #define POINTS_PER_INCH 72
eric@28 44
eric@28 45 /* page size limited by Acrobat Reader to 45 inches on a side */
eric@28 46 #define PAGE_MAX_INCHES 45
eric@28 47 #define PAGE_MAX_POINTS (PAGE_MAX_INCHES * POINTS_PER_INCH)
eric@28 48
eric@28 49
eric@26 50 typedef struct output_file_t
eric@26 51 {
eric@26 52 struct output_file_t *next;
eric@26 53 char *name;
eric@26 54 panda_pdf *pdf;
eric@26 55 } output_file_t;
eric@26 56
eric@26 57
eric@26 58 char *in_filename;
eric@10 59 TIFF *in;
eric@26 60 output_file_t *output_files;
eric@26 61 output_file_t *out;
eric@26 62 /* panda_pdf *out; */
eric@10 63
eric@10 64
eric@10 65 boolean close_tiff_input_file (void)
eric@10 66 {
eric@10 67 if (in)
eric@26 68 {
eric@26 69 free (in_filename);
eric@26 70 TIFFClose (in);
eric@26 71 }
eric@10 72 in = NULL;
eric@26 73 in_filename = NULL;
eric@10 74 return (1);
eric@10 75 }
eric@10 76
eric@10 77 boolean open_tiff_input_file (char *name)
eric@10 78 {
eric@10 79 if (in)
eric@26 80 {
eric@26 81 if (strcmp (name, in_filename) == 0)
eric@26 82 return (1);
eric@26 83 close_tiff_input_file ();
eric@26 84 }
eric@26 85 in_filename = strdup (name);
eric@26 86 if (! in_filename)
eric@26 87 {
eric@26 88 fprintf (stderr, "can't strdup input filename '%s'\n", name);
eric@26 89 return (0);
eric@26 90 }
eric@10 91 in = TIFFOpen (name, "r");
eric@10 92 if (! in)
eric@10 93 {
eric@10 94 fprintf (stderr, "can't open input file '%s'\n", name);
eric@26 95 free (in_filename);
eric@10 96 return (0);
eric@10 97 }
eric@10 98 return (1);
eric@10 99 }
eric@10 100
eric@10 101
eric@26 102 boolean close_pdf_output_files (void)
eric@10 103 {
eric@26 104 output_file_t *o, *n;
eric@26 105
eric@26 106 for (o = output_files; o; o = n)
eric@26 107 {
eric@26 108 n = o->next;
eric@26 109 panda_close (o->pdf);
eric@26 110 free (o->name);
eric@26 111 free (o);
eric@26 112 }
eric@10 113 out = NULL;
eric@26 114 output_files = NULL;
eric@10 115 return (1);
eric@10 116 }
eric@10 117
eric@30 118 boolean open_pdf_output_file (char *name,
eric@30 119 pdf_file_attributes_t *attributes)
eric@10 120 {
eric@26 121 output_file_t *o;
eric@26 122
eric@26 123 if (out && (strcmp (name, out->name) == 0))
eric@26 124 return (1);
eric@26 125 for (o = output_files; o; o = o->next)
eric@26 126 if (strcmp (name, o->name) == 0)
eric@26 127 {
eric@26 128 out = o;
eric@26 129 return (1);
eric@26 130 }
eric@26 131 o = calloc (1, sizeof (output_file_t));
eric@29 132 if (! o)
eric@10 133 {
eric@26 134 fprintf (stderr, "can't calloc output file struct for '%s'\n", name);
eric@26 135 return (0);
eric@26 136 }
eric@26 137
eric@26 138 o->name = strdup (name);
eric@26 139 if (! o->name)
eric@26 140 {
eric@26 141 fprintf (stderr, "can't strdup output filename '%s'\n", name);
eric@26 142 free (o);
eric@10 143 return (0);
eric@10 144 }
eric@26 145
eric@26 146 o->pdf = panda_open (name, "w");
eric@26 147 if (! o->pdf)
eric@26 148 {
eric@26 149 fprintf (stderr, "can't open output file '%s'\n", name);
eric@26 150 free (o->name);
eric@26 151 free (o);
eric@26 152 return (0);
eric@26 153 }
eric@26 154
eric@30 155 if (attributes->author)
eric@30 156 panda_setauthor (o->pdf, attributes->author);
eric@30 157 if (attributes->creator)
eric@30 158 panda_setcreator (o->pdf, attributes->creator);
eric@30 159 if (attributes->title)
eric@30 160 panda_settitle (o->pdf, attributes->title);
eric@30 161 if (attributes->subject)
eric@30 162 panda_setsubject (o->pdf, attributes->subject);
eric@30 163 if (attributes->keywords)
eric@30 164 panda_setkeywords (o->pdf, attributes->keywords);
eric@30 165
eric@26 166 /* prepend new output file onto list */
eric@26 167 o->next = output_files;
eric@26 168 output_files = o;
eric@26 169
eric@26 170 out = o;
eric@10 171 return (1);
eric@10 172 }
eric@10 173
eric@10 174
eric@25 175 void process_page_numbers (int page_index,
eric@25 176 int count,
eric@25 177 int base,
eric@25 178 page_label_t *page_label)
eric@25 179 {
eric@25 180 }
eric@25 181
eric@25 182
eric@42 183 /* frees original! */
eric@42 184 static Bitmap *resize_bitmap (Bitmap *src,
eric@36 185 float x_resolution,
eric@36 186 float y_resolution,
eric@36 187 input_attributes_t input_attributes)
eric@32 188 {
eric@32 189 Rect src_rect;
eric@42 190 Point dest_min;
eric@42 191 Bitmap *dest;
eric@32 192
eric@42 193 int width_pixels = input_attributes.page_size.width * x_resolution;
eric@42 194 int height_pixels = input_attributes.page_size.height * y_resolution;
eric@42 195
eric@42 196 src_rect.min.x = (rect_width (& src->rect) - width_pixels) / 2;
eric@42 197 src_rect.min.y = (rect_height (& src->rect) - height_pixels) / 2;
eric@42 198 src_rect.max.x = src_rect.min.x + width_pixels;
eric@42 199 src_rect.max.y = src_rect.min.y + height_pixels;
eric@36 200
eric@42 201 dest_min.x = 0;
eric@42 202 dest_min.y = 0;
eric@32 203
eric@43 204 dest = bitblt (src, & src_rect, NULL, & dest_min, TF_SRC, 0);
eric@42 205 free_bitmap (src);
eric@42 206 return (dest);
eric@42 207 }
eric@32 208
eric@42 209
eric@42 210 /* "in place" rotation */
eric@42 211 static void rotate_bitmap (Bitmap *src,
eric@42 212 input_attributes_t input_attributes)
eric@42 213 {
eric@36 214 switch (input_attributes.rotation)
eric@32 215 {
eric@42 216 case 0: break;
eric@42 217 case 90: rot_90 (src); break;
eric@42 218 case 180: rot_180 (src); break;
eric@42 219 case 270: rot_270 (src); break;
eric@32 220 default:
eric@32 221 fprintf (stderr, "rotation must be 0, 90, 180, or 270\n");
eric@32 222 }
eric@32 223 }
eric@32 224
eric@32 225
eric@32 226 #define SWAP(type,a,b) do { type temp; temp = a; a = b; b = temp; } while (0)
eric@32 227
eric@23 228 boolean process_page (int image, /* range 1 .. n */
eric@23 229 input_attributes_t input_attributes,
eric@25 230 bookmark_t *bookmarks)
eric@10 231 {
eric@29 232 int result = 0;
eric@29 233
eric@10 234 u32 image_length, image_width;
eric@32 235 u32 dest_image_length, dest_image_width;
eric@10 236 #ifdef CHECK_DEPTH
eric@10 237 u32 image_depth;
eric@10 238 #endif
eric@29 239
eric@29 240 u16 samples_per_pixel;
eric@10 241 u16 bits_per_sample;
eric@10 242 u16 planar_config;
eric@32 243
eric@10 244 u16 resolution_unit;
eric@10 245 float x_resolution, y_resolution;
eric@32 246 float dest_x_resolution, dest_y_resolution;
eric@32 247
eric@28 248 int width_points, height_points; /* really 1/72 inch units rather than
eric@28 249 points */
eric@28 250
eric@42 251 Rect rect;
eric@42 252 Bitmap *bitmap;
eric@42 253
eric@32 254 int row;
eric@10 255
eric@28 256 panda_page *page;
eric@28 257
eric@28 258 int tiff_temp_fd;
eric@44 259 char tiff_temp_fn [] = "/var/tmp/t2p-XXXXXX\0";
eric@28 260 TIFF *tiff_temp;
eric@28 261
eric@28 262 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
eric@28 263 two zeros, three spaces, two brackets, and a NULL.
eric@28 264 Added an extra ten characters just in case. */
eric@28 265
eric@10 266 if (! TIFFSetDirectory (in, image - 1))
eric@10 267 {
eric@10 268 fprintf (stderr, "can't find page %d of input file\n", image);
eric@10 269 goto fail;
eric@10 270 }
eric@10 271 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
eric@10 272 {
eric@10 273 fprintf (stderr, "can't get image length\n");
eric@10 274 goto fail;
eric@10 275 }
eric@10 276 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
eric@10 277 {
eric@10 278 fprintf (stderr, "can't get image width\n");
eric@10 279 goto fail;
eric@10 280 }
eric@29 281
eric@29 282 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
eric@29 283 {
eric@29 284 fprintf (stderr, "can't get samples per pixel\n");
eric@29 285 goto fail;
eric@29 286 }
eric@29 287
eric@10 288 #ifdef CHECK_DEPTH
eric@10 289 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
eric@10 290 {
eric@10 291 fprintf (stderr, "can't get image depth\n");
eric@10 292 goto fail;
eric@10 293 }
eric@10 294 #endif
eric@10 295
eric@10 296 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
eric@10 297 {
eric@10 298 fprintf (stderr, "can't get bits per sample\n");
eric@10 299 goto fail;
eric@10 300 }
eric@10 301
eric@10 302 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
eric@10 303 planar_config = 1;
eric@10 304
eric@10 305 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
eric@10 306 resolution_unit = 2;
eric@10 307 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
eric@10 308 x_resolution = 300;
eric@10 309 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
eric@10 310 y_resolution = 300;
eric@10 311
eric@29 312 if (samples_per_pixel != 1)
eric@29 313 {
eric@29 314 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
eric@29 315 goto fail;
eric@29 316 }
eric@29 317
eric@10 318 #ifdef CHECK_DEPTH
eric@10 319 if (image_depth != 1)
eric@10 320 {
eric@10 321 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
eric@10 322 goto fail;
eric@10 323 }
eric@10 324 #endif
eric@10 325
eric@10 326 if (bits_per_sample != 1)
eric@10 327 {
eric@10 328 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
eric@10 329 goto fail;
eric@10 330 }
eric@10 331
eric@10 332 if (planar_config != 1)
eric@10 333 {
eric@10 334 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
eric@10 335 goto fail;
eric@10 336 }
eric@10 337
eric@36 338 if (input_attributes.has_resolution)
eric@32 339 {
eric@36 340 x_resolution = input_attributes.x_resolution;
eric@36 341 y_resolution = input_attributes.y_resolution;
eric@32 342 }
eric@32 343
eric@32 344 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
eric@32 345 {
eric@32 346 dest_image_width = image_length;
eric@32 347 dest_image_length = image_width;
eric@32 348 dest_x_resolution = y_resolution;
eric@32 349 dest_y_resolution = x_resolution;
eric@32 350 SWAP (int, width_points, height_points);
eric@32 351 }
eric@32 352 else
eric@32 353 {
eric@32 354 dest_image_width = image_width;
eric@32 355 dest_image_length = image_length;
eric@32 356 dest_x_resolution = x_resolution;
eric@32 357 dest_y_resolution = y_resolution;
eric@32 358 }
eric@32 359
eric@42 360 rect.min.x = 0;
eric@42 361 rect.min.y = 0;
eric@42 362 rect.max.x = image_width;
eric@42 363 rect.max.y = image_length;
eric@42 364
eric@42 365 bitmap = create_bitmap (& rect);
eric@42 366
eric@42 367 if (! bitmap)
eric@10 368 {
eric@32 369 fprintf (stderr, "can't allocate bitmap\n");
eric@10 370 goto fail;
eric@10 371 }
eric@10 372
eric@10 373 for (row = 0; row < image_length; row++)
eric@32 374 if (1 != TIFFReadScanline (in,
eric@43 375 bitmap->bits + row * bitmap->row_words,
eric@32 376 row,
eric@32 377 0))
eric@32 378 {
eric@32 379 fprintf (stderr, "can't read TIFF scanline\n");
eric@32 380 goto fail;
eric@32 381 }
eric@28 382
eric@47 383 #ifdef TIFF_REVERSE_BITS
eric@47 384 reverse_bits ((u8 *) bitmap->bits,
eric@47 385 image_length * bitmap->row_words * sizeof (word_type));
eric@47 386 #endif /* TIFF_REVERSE_BITS */
eric@47 387
eric@46 388 if (input_attributes.has_page_size)
eric@46 389 bitmap = resize_bitmap (bitmap,
eric@46 390 x_resolution,
eric@46 391 y_resolution,
eric@46 392 input_attributes);
eric@42 393
eric@42 394 rotate_bitmap (bitmap,
eric@42 395 input_attributes);
eric@28 396
eric@36 397 tiff_temp_fd = mkstemp (tiff_temp_fn);
eric@36 398 if (tiff_temp_fd < 0)
eric@36 399 {
eric@36 400 fprintf (stderr, "can't create temporary TIFF file\n");
eric@36 401 goto fail;
eric@36 402 }
eric@36 403
eric@36 404 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
eric@36 405 if (! out)
eric@36 406 {
eric@36 407 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
eric@36 408 goto fail;
eric@36 409 }
eric@36 410
eric@42 411 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, rect_height (& bitmap->rect));
eric@42 412 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, rect_width (& bitmap->rect));
eric@36 413 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
eric@36 414
eric@42 415 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, rect_height (& bitmap->rect));
eric@36 416
eric@36 417 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
eric@36 418 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, dest_x_resolution);
eric@36 419 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, dest_y_resolution);
eric@36 420
eric@36 421 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
eric@36 422 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
eric@36 423 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
eric@36 424 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
eric@36 425
eric@47 426 #ifdef TIFF_REVERSE_BITS
eric@47 427 reverse_bits ((u8 *) bitmap->bits,
eric@47 428 image_length * bitmap->row_words * sizeof (word_type));
eric@47 429 #endif /* TIFF_REVERSE_BITS */
eric@47 430
eric@42 431 for (row = 0; row < rect_height (& bitmap->rect); row++)
eric@32 432 if (1 != TIFFWriteScanline (tiff_temp,
eric@43 433 bitmap->bits + row * bitmap->row_words,
eric@32 434 row,
eric@32 435 0))
eric@32 436 {
eric@32 437 fprintf (stderr, "can't write TIFF scanline\n");
eric@32 438 goto fail;
eric@32 439 }
eric@32 440
eric@32 441 TIFFClose (tiff_temp);
eric@32 442
eric@42 443 width_points = (rect_width (& bitmap->rect) / dest_x_resolution) * POINTS_PER_INCH;
eric@42 444 height_points = (rect_height (& bitmap->rect) / dest_y_resolution) * POINTS_PER_INCH;
eric@36 445
eric@42 446 free_bitmap (bitmap);
eric@28 447
eric@36 448 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
eric@36 449 {
eric@36 450 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
eric@36 451 goto fail;
eric@36 452 }
eric@36 453
eric@28 454 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
eric@28 455
eric@28 456 page = panda_newpage (out->pdf, pagesize);
eric@28 457 panda_imagebox (out->pdf,
eric@28 458 page,
eric@28 459 0, /* top */
eric@28 460 0, /* left */
eric@28 461 height_points, /* bottom */
eric@28 462 width_points, /* right */
eric@28 463 tiff_temp_fn,
eric@28 464 panda_image_tiff);
eric@28 465
eric@29 466 result = 1;
eric@10 467
eric@10 468 fail:
eric@29 469 if (tiff_temp_fd)
eric@29 470 unlink (tiff_temp_fn);
eric@29 471 return (result);
eric@10 472 }
eric@10 473
eric@10 474
eric@10 475 int main (int argc, char *argv[])
eric@10 476 {
eric@10 477 int result = 0;
eric@10 478
eric@10 479 panda_init ();
eric@10 480
eric@10 481 if (argc != 2)
eric@10 482 {
eric@10 483 fprintf (stderr, "usage: %s spec\n", argv [0]);
eric@10 484 result = 1;
eric@10 485 goto fail;
eric@10 486 }
eric@10 487
eric@17 488 if (! parse_spec_file (argv [1]))
eric@26 489 {
eric@26 490 result = 2;
eric@26 491 goto fail;
eric@26 492 }
eric@26 493
eric@26 494 if (! process_specs ())
eric@26 495 {
eric@26 496 result = 3;
eric@26 497 goto fail;
eric@26 498 }
eric@17 499
eric@10 500 fail:
eric@10 501 close_tiff_input_file ();
eric@26 502 close_pdf_output_files ();
eric@10 503 return (result);
eric@10 504 }