src/pdf2swf.c

   1 /* pdf2swf.c
   2    main routine for pdf2swf(1)
   3
   4    Part of the swftools package.
   5
   6    Copyright (c) 2001,2002,2003 Matthias Kramm <kramm@quiss.org>
   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 as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
  21
  22 #include <stdlib.h>
  23 #include <stdio.h>
  24 #include <stdarg.h>
  25 #include <string.h>
  26 #include <memory.h>
  27 #include <sys/types.h>
  28 #include <unistd.h>
  29 #include "../config.h"
  30 #ifdef HAVE_SIGNAL_H
  31 #include <signal.h>
  32 #endif
  33 #ifdef HAVE_DIRENT_H
  34 #include <dirent.h>
  35 #endif
  36 #ifdef HAVE_MALLOC_H
  37 #include <malloc.h>
  38 #endif
  39
  40 #include "../lib/args.h"
  41 #include "../lib/os.h"
  42 #include "../lib/rfxswf.h"
  43 #include "../lib/devices/swf.h"
  44 #include "../lib/devices/polyops.h"
  45 #include "../lib/devices/record.h"
  46 #include "../lib/devices/rescale.h"
  47 #include "../lib/gfxfilter.h"
  48 #include "../lib/pdf/pdf.h"
  49 #include "../lib/log.h"
  50
  51 #define SWFDIR concatPaths(getInstallationPath(), "swfs")
  52
  53 static gfxsource_t*driver = 0;
  54 static gfxdevice_t*out = 0;
  55
  56 static int maxwidth=0, maxheight=0;
  57
  58 static char * outputname = 0;
  59 static int loglevel = 3;
  60 static char * pagerange = 0;
  61 static char * filename = 0;
  62 static char * password = 0;
  63 static int zlib = 0;
  64
  65 static char * preloader = 0;
  66 static char * viewer = 0;
  67 static int xnup = 1;
  68 static int ynup = 1;
  69
  70 static int info_only = 0;
  71
  72 static int max_time = 0;
  73
  74 static int flatten = 0;
  75
  76 static char* filters = 0;
  77
  78 char* fontpaths[256];
  79 int fontpathpos = 0;
  80
  81 int move_x=0;
  82 int move_y=0;
  83 int custom_move = 0;
  84 int clip_x1=0,clip_y1=0,clip_x2=0,clip_y2=0;
  85 int custom_clip = 0;
  86
  87 static int system_quiet=0;
  88
  89 int systemf(const char* format, ...)
  90 {
  91     char buf[1024];
  92     int ret;
  93     va_list arglist;
  94     va_start(arglist, format);
  95     vsnprintf(buf, sizeof(buf)-1, format, arglist);
  96     va_end(arglist);
  97
  98     if(!system_quiet) {
  99         printf("%s\n", buf);
 100         fflush(stdout);
 101     }
 102     ret = system(buf);
 103     if(ret) {
 104         fprintf(stderr, "system() returned %d\n", ret);
 105         exit(ret);
 106     }
 107     return ret;
 108 }
 109
 110 #ifdef HAVE_SIGNAL_H
 111 void sigalarm(int signal)
 112 {
 113     msg("<fatal> Aborting rendering after %d seconds", max_time);
 114 #if 0 && defined(HAVE_SYS_TIME_H) && defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRUSAGE)
 115     struct rusage usage;
 116     getrusage(RUSAGE_CHILDREN, &usage);
 117     msg("<fatal> Memory used: %d,%d,%d", usage.ru_maxrss, usage.ru_idrss, usage.ru_isrss);
 118 #endif
 119 #if defined(HAVE_MALLINFO) && defined(HAVE_MALLOC_H)
 120     struct mallinfo info = mallinfo();
 121     msg("<fatal> Memory used: %d Mb (%d bytes)", info.uordblks/1048576, info.uordblks);
 122 #endif
 123     exit(1);
 124 }
 125 #endif
 126
 127 typedef struct _parameter {
 128     struct _parameter*next;
 129     const char*name;
 130     const char*value;
 131 } parameter_t;
 132
 133 static parameter_t* device_config = 0;
 134 static parameter_t* device_config_next = 0;
 135 static void store_parameter(const char*name, const char*value)
 136 {
 137     parameter_t*o = device_config;
 138     while(o) {
 139         if(!strcmp(name, o->name)) {
 140             /* overwrite old value */
 141             free((void*)o->value);
 142             o->value = strdup(value);
 143             return;
 144         }
 145         o = o->next;
 146     }
 147     parameter_t*p = (parameter_t*)malloc(sizeof(parameter_t));
 148     p->name = strdup(name);
 149     p->value = strdup(value);
 150     p->next = 0;
 151
 152     if(device_config_next) {
 153         device_config_next->next = p;
 154         device_config_next = p;
 155     } else {
 156         device_config = p;
 157         device_config_next = p;
 158     }
 159 }
 160
 161 int args_callback_option(char*name,char*val) {
 162     if (!strcmp(name, "o"))
 163     {
 164         outputname = val;
 165         return 1;
 166     }
 167     else if (!strcmp(name, "v"))
 168     {
 169         loglevel ++;
 170         setConsoleLogging(loglevel);
 171         return 0;
 172     }
 173     else if (!strcmp(name, "2"))
 174     {
 175         xnup = 2;
 176         ynup = 1;
 177         return 0;
 178     }
 179     else if (!strcmp(name, "4"))
 180     {
 181         xnup = 2;
 182         ynup = 2;
 183         return 0;
 184     }
 185     else if (!strcmp(name, "9"))
 186     {
 187         xnup = 3;
 188         ynup = 3;
 189         return 0;
 190     }
 191     else if (!strcmp(name, "X"))
 192     {
 193         maxwidth = atoi(val);
 194         return 1;
 195     }
 196     else if (!strcmp(name, "Y"))
 197     {
 198         maxheight = atoi(val);
 199         return 1;
 200     }
 201     else if (!strcmp(name, "q"))
 202     {
 203         loglevel --;
 204         setConsoleLogging(loglevel);
 205         system_quiet = 1;
 206         return 0;
 207     }
 208     else if (name[0]=='p')
 209     {
 210         /* check whether the page range follows the p directly, like
 211            in -p1,2 */
 212         do {
 213             name++;
 214         } while(*name == 32 || *name == 13 || *name == 10 || *name == '\t');
 215
 216         if(*name) {
 217             pagerange = name;
 218             return 0;
 219         }
 220         pagerange = val;
 221         return 1;
 222     }
 223     else if (!strcmp(name, "P"))
 224     {
 225         password = val;
 226         return 1;
 227     }
 228     else if (!strcmp(name, "c"))
 229     {
 230         char*s = strdup(val);
 231         char*x1 = strtok(s, ":");
 232         char*y1 = strtok(0, ":");
 233         char*x2 = strtok(0, ":");
 234         char*y2 = strtok(0, ":");
 235         if(!(x1 && y1 && x2 && y2)) {
 236             fprintf(stderr, "-c option requires four arguments, <x1>:<y1>:<x2>:<y2>\n");
 237             exit(1);
 238         }
 239         custom_clip = 1;
 240         clip_x1 = atoi(x1);
 241         clip_y1 = atoi(y1);
 242         clip_x2 = atoi(x2);
 243         clip_y2 = atoi(y2);
 244         free(s);
 245         return 1;
 246     }
 247     else if (!strcmp(name, "m"))
 248     {
 249         char*s = strdup(val);
 250         char*c = strchr(s, ':');
 251         if(!c) {
 252             fprintf(stderr, "-m option requires two arguments, <x>:<y>\n");
 253             exit(1);
 254         }
 255         *c = 0;
 256         custom_move = 1;
 257         move_x = atoi(val);
 258         move_y = atoi(c+1);
 259         free(s);
 260         return 1;
 261     }
 262     else if (!strcmp(name, "s"))
 263     {
 264         char*s = val;
 265         char*c = strchr(s, '=');
 266         if(c && *c && c[1])  {
 267             *c = 0;
 268             c++;
 269             store_parameter(s,c);
 270         } else if(!strcmp(s,"help")) {
 271             printf("PDF Parameters:\n");
 272             gfxsource_t*pdf = gfxsource_pdf_create();
 273             pdf->setparameter(pdf, "help", "");
 274             gfxdevice_t swf;
 275             gfxdevice_swf_init(&swf);
 276             printf("SWF Parameters:\n");
 277             swf.setparameter(&swf, "help", "");
 278             exit(0);
 279         } else {
 280             store_parameter(s,"1");
 281         }
 282         return 1;
 283     }
 284     else if (!strcmp(name, "S"))
 285     {
 286         store_parameter("drawonlyshapes", "1");
 287         return 0;
 288     }
 289     else if (!strcmp(name, "i"))
 290     {
 291         store_parameter("ignoredraworder", "1");
 292         return 0;
 293     }
 294 #ifndef WIN32
 295     else if (!strcmp(name, "Q"))
 296     {
 297         max_time = atoi(val);
 298         alarm(max_time);
 299 # ifdef HAVE_SIGNAL_H
 300         signal(SIGALRM, sigalarm);
 301 # endif
 302         return 1;
 303     }
 304 #endif
 305     else if (!strcmp(name, "z"))
 306     {
 307         store_parameter("enablezlib", "1");
 308         zlib = 1;
 309         return 0;
 310     }
 311     else if (!strcmp(name, "n"))
 312     {
 313         store_parameter("opennewwindow", "1");
 314         return 0;
 315     }
 316     else if (!strcmp(name, "I"))
 317     {
 318         info_only = 1;
 319         return 0;
 320     }
 321     else if (!strcmp(name, "t"))
 322     {
 323         store_parameter("insertstop", "1");
 324         return 0;
 325     }
 326     else if (!strcmp(name, "T"))
 327     {
 328         if(!strcasecmp(val, "mx"))
 329             store_parameter("flashversion", "6");
 330         else
 331             store_parameter("flashversion", val);
 332
 333         return 1;
 334     }
 335     else if (!strcmp(name, "f"))
 336     {
 337         store_parameter("storeallcharacters", "1");
 338         store_parameter("extrafontdata", "1");
 339         return 0;
 340     }
 341     else if (!strcmp(name, "ff"))
 342     {
 343         if(filters) {
 344             // append this to the current filter expression (we allow more than one --filter)
 345             int l = strlen(filters);
 346             int new_len = l + strlen(val) + 2;
 347             filters = (char*)realloc(filters, new_len);
 348             filters[l] = ':';
 349             strcpy(filters+l+1, val);
 350         } else {
 351             filters = strdup(val);
 352         }
 353         return 1;
 354     }
 355     else if (!strcmp(name, "w"))
 356     {
 357         store_parameter("linksopennewwindow", "0");
 358         return 0;
 359     }
 360     else if (!strcmp(name, "O"))
 361     {
 362         int level = 1;
 363         int ret=0;
 364         if(val&& val[0] && val[1]==0 && isdigit(val[0])) {
 365             level = atoi(val);
 366             ret=1;
 367         }
 368         if(level>=1)
 369             store_parameter("poly2bitmap", "1");
 370         if(level>=2)
 371             store_parameter("bitmapfonts", "1");
 372         if(level>=3)
 373             store_parameter("ignoredraworder", "1");
 374         return ret;
 375     }
 376     else if (!strcmp(name, "G"))
 377     {
 378         //store_parameter("optimize_polygons", "1");
 379         flatten = 1;
 380         return 0;
 381     }
 382     else if (!strcmp(name, "F"))
 383     {
 384         char *s = strdup(val);
 385         int l = strlen(s);
 386         while(l && s[l-1]=='/') {
 387             s[l-1] = 0;
 388             l--;
 389         }
 390         fontpaths[fontpathpos++] = s;
 391         return 1;
 392     }
 393     else if (!strcmp(name, "l"))
 394     {
 395         char buf[256];
 396         sprintf(buf, "%s/default_loader.swf", SWFDIR);
 397         preloader = strdup(buf);
 398         return 0;
 399     }
 400     else if (!strcmp(name, "b"))
 401     {
 402         char buf[256];
 403         sprintf(buf, "%s/default_viewer.swf", SWFDIR);
 404         viewer = strdup(buf);
 405         return 0;
 406     }
 407     else if (!strcmp(name, "L"))
 408     {
 409         if(val)
 410         {
 411             preloader = val;
 412         }
 413         else
 414         {
 415             systemf("ls %s/*_loader.swf", SWFDIR);
 416             if(!system_quiet)
 417                 printf("\n");
 418             exit(1);
 419         }
 420         return 1;
 421     }
 422     else if (!strcmp(name, "B"))
 423     {
 424         if(val)
 425         {
 426             viewer = val;
 427         }
 428         else
 429         {
 430             systemf("ls %s/*_viewer.swf", SWFDIR);
 431             if(!system_quiet)
 432                 printf("\n");
 433             exit(1);
 434         }
 435         return 1;
 436     }
 437     else if (!strcmp(name, "j"))
 438     {
 439         if(name[1]) {
 440             store_parameter("jpegquality", &name[1]);
 441             return 0;
 442         } else {
 443             store_parameter("jpegquality", val);
 444             return 1;
 445         }
 446     }
 447     else if (!strcmp(name, "V"))
 448     {
 449         printf("pdf2swf - part of %s %s\n", PACKAGE, VERSION);
 450         exit(0);
 451     }
 452     else
 453     {
 454         fprintf(stderr, "Unknown option: -%s\n", name);
 455         exit(1);
 456     }
 457     return 0;
 458 }
 459
 460 static struct options_t options[] = {
 461 {"h", "help"},
 462 {"V", "version"},
 463 {"o", "output"},
 464 {"p", "pages"},
 465 {"P", "password"},
 466 {"v", "verbose"},
 467 {"z", "zlib"},
 468 {"i", "ignore"},
 469 {"j", "jpegquality"},
 470 {"s", "set"},
 471 {"w", "samewindow"},
 472 {"t", "stop"},
 473 {"T", "flashversion"},
 474 {"F", "fontdir"},
 475 {"ff", "filter"},
 476 {"b", "defaultviewer"},
 477 {"l", "defaultloader"},
 478 {"B", "viewer"},
 479 {"L", "preloader"},
 480 {"q", "quiet"},
 481 {"S", "shapes"},
 482 {"f", "fonts"},
 483 {"G", "flatten"},
 484 {"I", "info"},
 485 {"Q", "maxtime"},
 486 {"X", "width"},
 487 {"Y", "height"},
 488 {0,0}
 489 };
 490
 491 int args_callback_longoption(char*name,char*val) {
 492     return args_long2shortoption(options, name, val);
 493 }
 494
 495 int args_callback_command(char*name, char*val) {
 496     if (!filename)
 497         filename = name;
 498     else {
 499         if(outputname)
 500         {
 501              fprintf(stderr, "Error: Do you want the output to go to %s or to %s?",
 502                      outputname, name);
 503              exit(1);
 504         }
 505         outputname = name;
 506     }
 507     return 0;
 508 }
 509
 510 void args_callback_usage(char *name)
 511 {
 512     printf("\n");
 513     printf("Usage: %s [-options] file.pdf -o file.swf\n", name);
 514     printf("\n");
 515     printf("-h , --help                    Print short help message and exit\n");
 516     printf("-V , --version                 Print version info and exit\n");
 517     printf("-o , --output file.swf         Direct output to file.swf. If file.swf contains '%%' (file%%.swf), then each page goes to a separate file.\n");
 518     printf("-p , --pages range             Convert only pages in range with range e.g. 1-20 or 1,4,6,9-11 or\n");
 519     printf("-P , --password password       Use password for deciphering the pdf.\n");
 520     printf("-v , --verbose                 Be verbose. Use more than one -v for greater effect.\n");
 521     printf("-z , --zlib                    Use Flash 6 (MX) zlib compression.\n");
 522     printf("-i , --ignore                  Allows pdf2swf to change the draw order of the pdf. This may make the generated\n");
 523     printf("-j , --jpegquality quality     Set quality of embedded jpeg pictures to quality. 0 is worst (small), 100 is best (big). (default:85)\n");
 524     printf("-s , --set param=value         Set a SWF encoder specific parameter.  See pdf2swf -s help for more information.\n");
 525     printf("-w , --samewindow              When converting pdf hyperlinks, don't make the links open a new window. \n");
 526     printf("-t , --stop                    Insert a stop() command in each page. \n");
 527     printf("-T , --flashversion num        Set Flash Version in the SWF header to num.\n");
 528     printf("-F , --fontdir directory       Add directory to the font search path.\n");
 529     printf("-b , --defaultviewer           Link a standard viewer to the swf file. \n");
 530     printf("-l , --defaultloader           Link a standard preloader to the swf file which will be displayed while the main swf is loading.\n");
 531     printf("-B , --viewer filename         Link viewer filename to the swf file. \n");
 532     printf("-L , --preloader filename      Link preloader filename to the swf file. \n");
 533     printf("-q , --quiet                   Suppress normal messages.  Use -qq to suppress warnings, also.\n");
 534     printf("-S , --shapes                  Don't use SWF Fonts, but store everything as shape.\n");
 535     printf("-f , --fonts                   Store full fonts in SWF. (Don't reduce to used characters).\n");
 536     printf("-G , --flatten                 Remove as many clip layers from file as possible. \n");
 537     printf("-I , --info                    Don't do actual conversion, just display a list of all pages in the PDF.\n");
 538     printf("-Q , --maxtime n               Abort conversion after n seconds. Only available on Unix.\n");
 539     printf("\n");
 540 }
 541
 542 float getRate(char*filename)
 543 {
 544     int fi;
 545     SWF swf;
 546     fi = open(filename,O_RDONLY|O_BINARY);
 547     if(fi<0) {
 548         char buffer[256];
 549         sprintf(buffer, "Couldn't open %s", filename);
 550         perror(buffer);
 551         exit(1);
 552     }
 553     if(swf_ReadSWF(fi,&swf) < 0)
 554     {
 555         fprintf(stderr, "%s is not a valid SWF file or contains errors.\n",filename);
 556         close(fi);
 557         exit(1);
 558     }
 559     swf_FreeTags(&swf);
 560     return swf.frameRate / 256.0;
 561 }
 562
 563 void show_info(gfxsource_t*driver, char*filename)
 564 {
 565     gfxdocument_t* pdf = driver->open(driver, filename);
 566     int pagenr;
 567     FILE*fo=0;
 568     if(!pdf) {
 569         msg("<error> Couldn't open %s", filename);
 570         exit(1);
 571     }
 572     if(outputname) {
 573         fo = fopen(outputname, "wb");
 574         if(!fo) {
 575             perror(outputname);exit(1);;
 576         }
 577     } else {
 578         fo = stdout;
 579     }
 580
 581     for(pagenr = 1; pagenr <= pdf->num_pages; pagenr++)
 582     {
 583         gfxpage_t*page = pdf->getpage(pdf,pagenr);
 584         if(is_in_range(pagenr, pagerange)) {
 585             fprintf(fo, "page=%d width=%.2f height=%.2f\n", pagenr, page->width, page->height);
 586         }
 587     }
 588     pdf->destroy(pdf);
 589 }
 590
 591
 592 static gfxdevice_t swf,wrap,rescale;
 593 gfxdevice_t*create_output_device()
 594 {
 595     gfxdevice_swf_init(&swf);
 596
 597     /* set up filter chain */
 598
 599     out = &swf;
 600     if(flatten) {
 601         gfxdevice_removeclippings_init(&wrap, &swf);
 602         out = &wrap;
 603     }
 604
 605     if(maxwidth || maxheight) {
 606         gfxdevice_rescale_init(&rescale, out, maxwidth, maxheight, 0);
 607         out = &rescale;
 608     }
 609
 610     if(filters) {
 611         gfxfilterchain_t*chain = gfxfilterchain_parse(filters);
 612         if(!chain) {
 613             fprintf(stderr, "Unable to parse filters: %s\n", filters);
 614             exit(1);
 615         }
 616         out = gfxfilterchain_apply(chain, out);
 617         gfxfilterchain_destroy(chain);
 618     }
 619
 620     /* pass global parameters to output device */
 621     parameter_t*p = device_config;
 622     while(p) {
 623         out->setparameter(out, p->name, p->value);
 624         p = p->next;
 625     }
 626     return out;
 627 }
 628
 629 int main(int argn, char *argv[])
 630 {
 631     int ret;
 632     char buf[256];
 633     int numfonts = 0;
 634     int t;
 635     char t1searchpath[1024];
 636     int nup_pos = 0;
 637     int x,y;
 638     int one_file_per_page = 0;
 639
 640     initLog(0,-1,0,0,-1,loglevel);
 641
 642     /* not needed anymore since fonts are embedded
 643        if(installPath) {
 644         fontpaths[fontpathpos++] = concatPaths(installPath, "fonts");
 645     }*/
 646
 647 #ifdef HAVE_SRAND48
 648     srand48(time(0)*getpid());
 649 #else
 650 #ifdef HAVE_SRAND
 651     srand(time(0)*getpid());
 652 #endif
 653 #endif
 654
 655     processargs(argn, argv);
 656
 657     driver = gfxsource_pdf_create();
 658
 659     /* pass global parameters to PDF driver*/
 660     parameter_t*p = device_config;
 661     while(p) {
 662         driver->setparameter(driver, p->name, p->value);
 663         p = p->next;
 664     }
 665
 666     if(!filename)
 667     {
 668         fprintf(stderr, "Please specify an input file\n");
 669         exit(1);
 670     }
 671
 672     if (!info_only) {
 673         if(!outputname)
 674         {
 675             if(filename) {
 676                 outputname = stripFilename(filename, ".swf");
 677                 msg("<notice> Output filename not given. Writing to %s", outputname);
 678             }
 679         }
 680
 681         if(!outputname)
 682         {
 683             fprintf(stderr, "Please use -o to specify an output file\n");
 684             exit(1);
 685         }
 686     }
 687
 688     // test if the page range is o.k.
 689     is_in_range(0x7fffffff, pagerange);
 690
 691     if (!filename) {
 692         args_callback_usage(argv[0]);
 693         exit(0);
 694     }
 695
 696     char fullname[256];
 697     if(password && *password) {
 698         sprintf(fullname, "%s|%s", filename, password);
 699         filename = fullname;
 700     }
 701
 702     if(pagerange)
 703         driver->setparameter(driver, "pages", pagerange);
 704
 705     /* add fonts */
 706     for(t=0;t<fontpathpos;t++) {
 707         driver->setparameter(driver, "fontdir", fontpaths[t]);
 708     }
 709
 710     if(info_only) {
 711         show_info(driver, filename);
 712         return 0;
 713     }
 714
 715     char*u = 0;
 716     if((u = strchr(outputname, '%'))) {
 717         if(strchr(u+1, '%') ||
 718            strchr(outputname, '%')!=u)  {
 719             msg("<error> only one %% allowed in filename\n");
 720             return 1;
 721         }
 722         if(preloader || viewer) {
 723             msg("<error> -b/-l/-B/-L not supported together with %% in filename\n");
 724             return 1;
 725         }
 726         msg("<notice> outputting one file per page");
 727         one_file_per_page = 1;
 728         char*pattern = (char*)malloc(strlen(outputname)+2);
 729         /* convert % to %d */
 730         int l = u-outputname+1;
 731         memcpy(pattern, outputname, l);
 732         pattern[l]='d';
 733         strcpy(pattern+l+1, outputname+l);
 734         outputname = pattern;
 735     }
 736
 737     gfxdocument_t* pdf = driver->open(driver, filename);
 738     if(!pdf) {
 739         msg("<error> Couldn't open %s", filename);
 740         exit(1);
 741     }
 742     /* pass global parameters document */
 743     p = device_config;
 744     while(p) {
 745         pdf->setparameter(pdf, p->name, p->value);
 746         p = p->next;
 747     }
 748
 749     struct mypage_t {
 750         int x;
 751         int y;
 752         gfxpage_t*page;
 753     } pages[4];
 754
 755     int pagenum = 0;
 756     int frame = 1;
 757     int pagenr;
 758
 759     for(pagenr = 1; pagenr <= pdf->num_pages; pagenr++)
 760     {
 761         if(is_in_range(pagenr, pagerange)) {
 762             char mapping[80];
 763             sprintf(mapping, "%d:%d", pagenr, frame);
 764             pdf->setparameter(pdf, "pagemap", mapping);
 765             pagenum++;
 766         }
 767         if(pagenum == xnup*ynup || (pagenr == pdf->num_pages && pagenum>1)) {
 768             pagenum = 0;
 769             frame++;
 770         }
 771     }
 772     if(pagerange && !pagenum && frame==1) {
 773         fprintf(stderr, "No pages in range %s", pagerange);
 774         exit(1);
 775     }
 776
 777     pagenum = 0;
 778
 779     gfxdevice_t*out = create_output_device();;
 780     pdf->prepare(pdf, out);
 781
 782     for(pagenr = 1; pagenr <= pdf->num_pages; pagenr++)
 783     {
 784         if(is_in_range(pagenr, pagerange)) {
 785             gfxpage_t* page = pages[pagenum].page = pdf->getpage(pdf, pagenr);
 786             pages[pagenum].x = 0;
 787             pages[pagenum].y = 0;
 788             pages[pagenum].page = page;
 789             pagenum++;
 790         }
 791         if(pagenum == xnup*ynup || (pagenr == pdf->num_pages && pagenum>1)) {
 792
 793             int t;
 794             int xmax[xnup], ymax[xnup];
 795             int x,y;
 796             int width=0, height=0;
 797
 798             memset(xmax, 0, xnup*sizeof(int));
 799             memset(ymax, 0, ynup*sizeof(int));
 800
 801             for(y=0;y<ynup;y++)
 802             for(x=0;x<xnup;x++) {
 803                 int t = y*xnup + x;
 804
 805                 if(pages[t].page->width > xmax[x])
 806                     xmax[x] = (int)pages[t].page->width;
 807                 if(pages[t].page->height > ymax[y])
 808                     ymax[y] = (int)pages[t].page->height;
 809             }
 810             for(x=0;x<xnup;x++) {
 811                 width += xmax[x];
 812                 xmax[x] = width;
 813             }
 814             for(y=0;y<ynup;y++) {
 815                 height += ymax[y];
 816                 ymax[y] = height;
 817             }
 818             if(custom_clip) {
 819                 out->startpage(out,clip_x2 - clip_x1, clip_y2 - clip_y1);
 820             } else {
 821                 out->startpage(out,width,height);
 822             }
 823             for(t=0;t<pagenum;t++) {
 824                 int x = t%xnup;
 825                 int y = t/xnup;
 826                 int xpos = x>0?xmax[x-1]:0;
 827                 int ypos = y>0?ymax[y-1]:0;
 828                 msg("<verbose> Render (%d,%d) move:%d/%d\n",
 829                         (int)(pages[t].page->width + xpos),
 830                         (int)(pages[t].page->height + ypos), xpos, ypos);
 831                 pages[t].page->rendersection(pages[t].page, out, custom_move? move_x : xpos,
 832                                                            custom_move? move_y : ypos,
 833                                                            custom_clip? clip_x1 : 0 + xpos,
 834                                                            custom_clip? clip_y1 : 0 + ypos,
 835                                                            custom_clip? clip_x2 : pages[t].page->width + xpos,
 836                                                            custom_clip? clip_y2 : pages[t].page->height + ypos);
 837             }
 838             out->endpage(out);
 839             for(t=0;t<pagenum;t++)  {
 840                 pages[t].page->destroy(pages[t].page);
 841             }
 842             pagenum = 0;
 843
 844             if(one_file_per_page) {
 845                 gfxresult_t*result = out->finish(out);out=0;
 846                 char buf[1024];
 847                 sprintf(buf, outputname, pagenr);
 848                 if(result->save(result, buf) < 0) {
 849                     return 1;
 850                 }
 851                 result->destroy(result);result=0;
 852                 out = create_output_device();;
 853                 pdf->prepare(pdf, out);
 854                 msg("<notice> Writing SWF file %s", buf);
 855             }
 856         }
 857     }
 858
 859     if(one_file_per_page) {
 860         // remove empty device
 861         gfxresult_t*result = out->finish(out);out=0;
 862         result->destroy(result);result=0;
 863     } else {
 864         gfxresult_t*result = out->finish(out);
 865         msg("<notice> Writing SWF file %s", outputname);
 866         if(result->save(result, outputname) < 0) {
 867             exit(1);
 868         }
 869         int width = (int)(ptroff_t)result->get(result, "width");
 870         int height = (int)(ptroff_t)result->get(result, "height");
 871         result->destroy(result);result=0;
 872
 873         if(preloader || viewer) {
 874             const char*zip = "";
 875             if(zlib) {
 876                 zip = "-z";
 877             }
 878             if(!preloader && viewer) {
 879                 systemf("swfcombine %s -X %d -Y %d \"%s\" viewport=\"%s\" -o \"%s\"",zip,width,height,
 880                         viewer, outputname, outputname);
 881                 if(!system_quiet)
 882                     printf("\n");
 883             }
 884             if(preloader && !viewer) {
 885                 msg("<warning> --preloader option without --viewer option doesn't make very much sense.");
 886                 ret = systemf("swfcombine %s -Y %d -X %d %s/PreLoaderTemplate.swf loader=\"%s\" movie=\"%s\" -o \"%s\"",zip,width,height,
 887                         SWFDIR, preloader, outputname, outputname);
 888                 if(!system_quiet)
 889                     printf("\n");
 890             }
 891             if(preloader && viewer) {
 892 #ifdef HAVE_MKSTEMP
 893                 char tmpname[] = "__swf__XXXXXX";
 894                 mkstemp(tmpname);
 895 #else
 896                 char*tmpname = "__tmp__.swf";
 897 #endif
 898                 systemf("swfcombine \"%s\" viewport=%s -o %s",
 899                         viewer, outputname, tmpname);
 900                 systemf("swfcombine %s -X %d -Y %d -r %f %s/PreLoaderTemplate.swf loader=%s movie=%s -o \"%s\"",zip,width,height,
 901                         getRate(preloader), SWFDIR, preloader, tmpname, outputname);
 902                 systemf("rm %s", tmpname);
 903             }
 904         }
 905     }
 906
 907     pdf->destroy(pdf);
 908     driver->destroy(driver);
 909
 910
 911     /* free global parameters */
 912     p = device_config;
 913     while(p) {
 914         parameter_t*next = p->next;
 915         if(p->name) free((void*)p->name);p->name = 0;
 916         if(p->value) free((void*)p->value);p->value =0;
 917         p->next = 0;free(p);
 918         p = next;
 919     }
 920     if(filters) {
 921         free(filters);
 922     }
 923
 924     return 0;
 925 }
 926