Beispiel #1
0
void
check_for_shared_dict(GArray<GUTF8String> &argv)
{
  const int argc=argv.hbound()+1;
  for (int i=2; i<argc; i++)
    if (!argv[i].cmp("INCL=",5))
      analyze_incl_chunk(GURL::Filename::UTF8(5+(const char *)argv[i]));
    else if (!argv[i].cmp("Djbz=", 5))
      analyze_djbz_chunk(GURL::Filename::UTF8(5+(const char *)argv[i]));
}
Beispiel #2
0
void
create_info_chunk(IFFByteStream &iff, GArray<GUTF8String> &argv)
{
  const int argc=argv.hbound()+1;
  // Process info specification
  for (int i=2; i<argc; i++)
    if (!argv[i].cmp("INFO=",5))
      {
        int   narg = 0;
        const char *ptr = 5+(const char *)argv[i];
        while (*ptr)
          {
            if (*ptr != ',')
              {
                int x = strtol((char *)ptr, (char **)&ptr, 10);
                switch(narg)
                  {
                  case 0: 
                    w = x; break;
                  case 1: 
                    h = x; break;
                  case 2: 
                    dpi = x; break;
                  default:  
                    G_THROW("djvumake: incorrect 'INFO' chunk specification\n");
                  }
              }
            narg++;
            if (*ptr && *ptr++!=',')
              G_THROW("djvumake: comma expected in 'INFO' chunk specification\n");
          }
          break;
      }
  if (w>0 && (w<=0 || w>=32768))
    G_THROW("djvumake: incorrect width in 'INFO' chunk specification\n");
  if (h>0 && (h<=0 || h>=32768))
    G_THROW("djvumake: incorrect height in 'INFO' chunk specification\n");
  if (dpi>0 && (dpi<25 || dpi>6000))
    G_THROW("djvumake: incorrect dpi in 'INFO' chunk specification\n");
  // Search first mask chunks if size is still unknown
  if (h<0 || w<0)
    {
      for (int i=2; i<argc; i++)
        if (!argv[i].cmp("Sjbz=",5))
          {
            analyze_jb2_chunk(GURL::Filename::UTF8(5+(const char *)argv[i]));
            break;
          }
        else if (!argv[i].cmp("Smmr=",5))
          {
            analyze_mmr_chunk(GURL::Filename::UTF8(5+(const char *)argv[i]));
            break;
          }
    }
  
  // Check that we have everything
  if (w<0 || h<0)
    G_THROW("djvumake: cannot determine image size\n");
  // write info chunk
  GP<DjVuInfo> ginfo=DjVuInfo::create();
  DjVuInfo &info=*ginfo;
  info.width = w;
  info.height = h;
  info.dpi = dpi;
  iff.put_chunk("INFO");
  info.encode(*iff.get_bytestream());
  iff.close_chunk();
}