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