t2p.c

Wed, 02 Jan 2002 16:39:39 +0000

author
eric
date
Wed, 02 Jan 2002 16:39:39 +0000
changeset 42
9c85a4cd88a3
parent 36
a338db73c6f4
child 43
b80cb5a4282a
permissions
-rw-r--r--

started work on bitblt optimization - split rotate functions from bitblt.

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@42 8 * $Id: t2p.c,v 1.14 2002/01/02 08:39:39 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@42 203 dest = bitblt (src, & src_rect, NULL, & dest_min, TF_SRC);
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@32 247 int scanline_size;
eric@32 248
eric@28 249 int width_points, height_points; /* really 1/72 inch units rather than
eric@28 250 points */
eric@28 251
eric@42 252 Rect rect;
eric@42 253 Bitmap *bitmap;
eric@42 254
eric@32 255 int row;
eric@10 256
eric@28 257 panda_page *page;
eric@28 258
eric@28 259 int tiff_temp_fd;
eric@28 260 char tiff_temp_fn [] = "/var/tmp/tiff2pdf-XXXXXX\0";
eric@28 261 TIFF *tiff_temp;
eric@28 262
eric@28 263 char pagesize [26]; /* Needs to hold two ints of four characters (0..3420),
eric@28 264 two zeros, three spaces, two brackets, and a NULL.
eric@28 265 Added an extra ten characters just in case. */
eric@28 266
eric@10 267 if (! TIFFSetDirectory (in, image - 1))
eric@10 268 {
eric@10 269 fprintf (stderr, "can't find page %d of input file\n", image);
eric@10 270 goto fail;
eric@10 271 }
eric@10 272 if (1 != TIFFGetField (in, TIFFTAG_IMAGELENGTH, & image_length))
eric@10 273 {
eric@10 274 fprintf (stderr, "can't get image length\n");
eric@10 275 goto fail;
eric@10 276 }
eric@10 277 if (1 != TIFFGetField (in, TIFFTAG_IMAGEWIDTH, & image_width))
eric@10 278 {
eric@10 279 fprintf (stderr, "can't get image width\n");
eric@10 280 goto fail;
eric@10 281 }
eric@29 282
eric@29 283 if (1 != TIFFGetField (in, TIFFTAG_SAMPLESPERPIXEL, & samples_per_pixel))
eric@29 284 {
eric@29 285 fprintf (stderr, "can't get samples per pixel\n");
eric@29 286 goto fail;
eric@29 287 }
eric@29 288
eric@10 289 #ifdef CHECK_DEPTH
eric@10 290 if (1 != TIFFGetField (in, TIFFTAG_IMAGEDEPTH, & image_depth))
eric@10 291 {
eric@10 292 fprintf (stderr, "can't get image depth\n");
eric@10 293 goto fail;
eric@10 294 }
eric@10 295 #endif
eric@10 296
eric@10 297 if (1 != TIFFGetField (in, TIFFTAG_BITSPERSAMPLE, & bits_per_sample))
eric@10 298 {
eric@10 299 fprintf (stderr, "can't get bits per sample\n");
eric@10 300 goto fail;
eric@10 301 }
eric@10 302
eric@10 303 if (1 != TIFFGetField (in, TIFFTAG_PLANARCONFIG, & planar_config))
eric@10 304 planar_config = 1;
eric@10 305
eric@10 306 if (1 != TIFFGetField (in, TIFFTAG_RESOLUTIONUNIT, & resolution_unit))
eric@10 307 resolution_unit = 2;
eric@10 308 if (1 != TIFFGetField (in, TIFFTAG_XRESOLUTION, & x_resolution))
eric@10 309 x_resolution = 300;
eric@10 310 if (1 != TIFFGetField (in, TIFFTAG_YRESOLUTION, & y_resolution))
eric@10 311 y_resolution = 300;
eric@10 312
eric@29 313 if (samples_per_pixel != 1)
eric@29 314 {
eric@29 315 fprintf (stderr, "samples per pixel %u, must be 1\n", samples_per_pixel);
eric@29 316 goto fail;
eric@29 317 }
eric@29 318
eric@10 319 #ifdef CHECK_DEPTH
eric@10 320 if (image_depth != 1)
eric@10 321 {
eric@10 322 fprintf (stderr, "image depth %u, must be 1\n", image_depth);
eric@10 323 goto fail;
eric@10 324 }
eric@10 325 #endif
eric@10 326
eric@10 327 if (bits_per_sample != 1)
eric@10 328 {
eric@10 329 fprintf (stderr, "bits per sample %u, must be 1\n", bits_per_sample);
eric@10 330 goto fail;
eric@10 331 }
eric@10 332
eric@10 333 if (planar_config != 1)
eric@10 334 {
eric@10 335 fprintf (stderr, "planar config %u, must be 1\n", planar_config);
eric@10 336 goto fail;
eric@10 337 }
eric@10 338
eric@36 339 if (input_attributes.has_resolution)
eric@32 340 {
eric@36 341 x_resolution = input_attributes.x_resolution;
eric@36 342 y_resolution = input_attributes.y_resolution;
eric@32 343 }
eric@32 344
eric@32 345 if ((input_attributes.rotation == 90) || (input_attributes.rotation == 270))
eric@32 346 {
eric@32 347 dest_image_width = image_length;
eric@32 348 dest_image_length = image_width;
eric@32 349 dest_x_resolution = y_resolution;
eric@32 350 dest_y_resolution = x_resolution;
eric@32 351 SWAP (int, width_points, height_points);
eric@32 352 }
eric@32 353 else
eric@32 354 {
eric@32 355 dest_image_width = image_width;
eric@32 356 dest_image_length = image_length;
eric@32 357 dest_x_resolution = x_resolution;
eric@32 358 dest_y_resolution = y_resolution;
eric@32 359 }
eric@32 360
eric@32 361 scanline_size = TIFFScanlineSize (in);
eric@32 362
eric@42 363 rect.min.x = 0;
eric@42 364 rect.min.y = 0;
eric@42 365 rect.max.x = image_width;
eric@42 366 rect.max.y = image_length;
eric@42 367
eric@42 368 bitmap = create_bitmap (& rect);
eric@42 369
eric@42 370 if (! bitmap)
eric@10 371 {
eric@32 372 fprintf (stderr, "can't allocate bitmap\n");
eric@10 373 goto fail;
eric@10 374 }
eric@10 375
eric@42 376 if (bitmap->rowbytes != scanline_size)
eric@32 377 {
eric@32 378 printf ("image_width %d\n", image_width);
eric@42 379 printf ("rowbytes %d\n", bitmap->rowbytes);
eric@32 380 printf ("TIFFScanlineSize %d\n", scanline_size);
eric@32 381 }
eric@32 382
eric@10 383 for (row = 0; row < image_length; row++)
eric@32 384 TIFFReadScanline (in,
eric@42 385 bitmap->bits + row * bitmap->rowbytes,
eric@32 386 row,
eric@32 387 0);
eric@10 388
eric@32 389 for (row = 0; row < dest_image_length; row++)
eric@32 390 if (1 != TIFFReadScanline (in,
eric@42 391 bitmap->bits + row * bitmap->rowbytes,
eric@32 392 row,
eric@32 393 0))
eric@32 394 {
eric@32 395 fprintf (stderr, "can't read TIFF scanline\n");
eric@32 396 goto fail;
eric@32 397 }
eric@28 398
eric@42 399 bitmap = resize_bitmap (bitmap,
eric@42 400 x_resolution,
eric@42 401 y_resolution,
eric@42 402 input_attributes);
eric@42 403
eric@42 404 rotate_bitmap (bitmap,
eric@42 405 input_attributes);
eric@28 406
eric@36 407 tiff_temp_fd = mkstemp (tiff_temp_fn);
eric@36 408 if (tiff_temp_fd < 0)
eric@36 409 {
eric@36 410 fprintf (stderr, "can't create temporary TIFF file\n");
eric@36 411 goto fail;
eric@36 412 }
eric@36 413
eric@36 414 tiff_temp = TIFFFdOpen (tiff_temp_fd, tiff_temp_fn, "w");
eric@36 415 if (! out)
eric@36 416 {
eric@36 417 fprintf (stderr, "can't open temporary TIFF file '%s'\n", tiff_temp_fn);
eric@36 418 goto fail;
eric@36 419 }
eric@36 420
eric@42 421 TIFFSetField (tiff_temp, TIFFTAG_IMAGELENGTH, rect_height (& bitmap->rect));
eric@42 422 TIFFSetField (tiff_temp, TIFFTAG_IMAGEWIDTH, rect_width (& bitmap->rect));
eric@36 423 TIFFSetField (tiff_temp, TIFFTAG_PLANARCONFIG, planar_config);
eric@36 424
eric@42 425 TIFFSetField (tiff_temp, TIFFTAG_ROWSPERSTRIP, rect_height (& bitmap->rect));
eric@36 426
eric@36 427 TIFFSetField (tiff_temp, TIFFTAG_RESOLUTIONUNIT, resolution_unit);
eric@36 428 TIFFSetField (tiff_temp, TIFFTAG_XRESOLUTION, dest_x_resolution);
eric@36 429 TIFFSetField (tiff_temp, TIFFTAG_YRESOLUTION, dest_y_resolution);
eric@36 430
eric@36 431 TIFFSetField (tiff_temp, TIFFTAG_SAMPLESPERPIXEL, samples_per_pixel);
eric@36 432 TIFFSetField (tiff_temp, TIFFTAG_BITSPERSAMPLE, bits_per_sample);
eric@36 433 TIFFSetField (tiff_temp, TIFFTAG_COMPRESSION, COMPRESSION_CCITTFAX4);
eric@36 434 TIFFSetField (tiff_temp, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISWHITE);
eric@36 435
eric@42 436 for (row = 0; row < rect_height (& bitmap->rect); row++)
eric@32 437 if (1 != TIFFWriteScanline (tiff_temp,
eric@42 438 bitmap->bits + row * bitmap->rowbytes,
eric@32 439 row,
eric@32 440 0))
eric@32 441 {
eric@32 442 fprintf (stderr, "can't write TIFF scanline\n");
eric@32 443 goto fail;
eric@32 444 }
eric@32 445
eric@32 446 TIFFClose (tiff_temp);
eric@32 447
eric@42 448 width_points = (rect_width (& bitmap->rect) / dest_x_resolution) * POINTS_PER_INCH;
eric@42 449 height_points = (rect_height (& bitmap->rect) / dest_y_resolution) * POINTS_PER_INCH;
eric@36 450
eric@42 451 free_bitmap (bitmap);
eric@28 452
eric@36 453 if ((height_points > PAGE_MAX_POINTS) || (width_points > PAGE_MAX_POINTS))
eric@36 454 {
eric@36 455 fprintf (stdout, "image too large (max %d inches on a side\n", PAGE_MAX_INCHES);
eric@36 456 goto fail;
eric@36 457 }
eric@36 458
eric@28 459 sprintf (pagesize, "[0 0 %d %d]", width_points, height_points);
eric@28 460
eric@28 461 page = panda_newpage (out->pdf, pagesize);
eric@28 462 panda_imagebox (out->pdf,
eric@28 463 page,
eric@28 464 0, /* top */
eric@28 465 0, /* left */
eric@28 466 height_points, /* bottom */
eric@28 467 width_points, /* right */
eric@28 468 tiff_temp_fn,
eric@28 469 panda_image_tiff);
eric@28 470
eric@29 471 result = 1;
eric@10 472
eric@10 473 fail:
eric@29 474 if (tiff_temp_fd)
eric@29 475 unlink (tiff_temp_fn);
eric@29 476 return (result);
eric@10 477 }
eric@10 478
eric@10 479
eric@10 480 int main (int argc, char *argv[])
eric@10 481 {
eric@10 482 int result = 0;
eric@10 483
eric@10 484 panda_init ();
eric@10 485
eric@10 486 if (argc != 2)
eric@10 487 {
eric@10 488 fprintf (stderr, "usage: %s spec\n", argv [0]);
eric@10 489 result = 1;
eric@10 490 goto fail;
eric@10 491 }
eric@10 492
eric@17 493 if (! parse_spec_file (argv [1]))
eric@26 494 {
eric@26 495 result = 2;
eric@26 496 goto fail;
eric@26 497 }
eric@26 498
eric@26 499 if (! process_specs ())
eric@26 500 {
eric@26 501 result = 3;
eric@26 502 goto fail;
eric@26 503 }
eric@17 504
eric@10 505 fail:
eric@10 506 close_tiff_input_file ();
eric@26 507 close_pdf_output_files ();
eric@10 508 return (result);
eric@10 509 }