swfdec/compiler.c

   1 //gcc -Wall -Werror `pkg-config --libs --cflags libming glib-2.0` compiler.c -o compiler
   2
   3 #include <glib.h>
   4 #include <ming.h>
   5 #include <string.h>
   6
   7 /* This is what is used to compile the Actionscript parts of the source to
   8  * includable C data that can later be executed.
   9  * Note that this is pretty much a hack until someone writes a proper
  10  * Actionscript compiler for Swfdec.
  11  * Also note that the creation of the include-scripts should probably not be
  12  * autorun, as we don't want to depend on external bugs, only on internal ones.
  13  */
  14 static gboolean
  15 write_data (guint8 *data, int len)
  16 {
  17   int i;
  18
  19   for (i = 0; i < len; i++) {
  20     switch (i % 16) {
  21       case 0:
  22         if (i == 0)
  23           g_print ("  0x%02X", data[i]);
  24         else
  25           g_print (",\n  0x%02X", data[i]);
  26         break;
  27       case 4:
  28       case 8:
  29       case 12:
  30         g_print (",  0x%02X", data[i]);
  31         break;
  32       default:
  33         g_print (", 0x%02X", data[i]);
  34         break;
  35     }
  36   }
  37   g_print ("\n");
  38   return TRUE;
  39 }
  40
  41 static char *
  42 get_name (const char *filename)
  43 {
  44   char *end;
  45
  46   end = strrchr (filename, '/');
  47   if (end)
  48     filename = end + 1;
  49   end = strchr (filename, '.');
  50   if (end)
  51     return g_strndup (filename, end - filename);
  52   else
  53     return g_strdup (filename);
  54 }
  55
  56 int
  57 main (int argc, char **argv)
  58 {
  59   SWFAction action;
  60   char *contents;
  61   GError *error = NULL;
  62   guint i;
  63   int len;
  64   gsize ignored;
  65   byte *data;
  66
  67   if (argc < 2) {
  68     g_print ("usage: %s FILE ...\n\n", argv[0]);
  69     return 1;
  70   }
  71
  72   Ming_init ();
  73   Ming_setSWFCompression (-1);
  74
  75   g_print ("/* This file is autogenerated, do not edit! */\n\n");
  76   for (i = 1; i < argc; i++) {
  77     if (!g_file_get_contents (argv[1], &contents, NULL, &error)) {
  78       g_printerr ("Error: %s\n", error->message);
  79       g_error_free (error);
  80       error = NULL;
  81       return 1;
  82     }
  83     action = newSWFAction (contents);
  84     if (SWFAction_compile (action, 6, &len) != 0) {
  85       g_printerr ("Error: Couldn't compile\n");
  86       return -1;
  87     }
  88     data = SWFAction_getByteCode (action, &ignored);
  89     contents = get_name (argv[i]);
  90     g_print ("/* compiled from %s */\n", argv[i]);
  91     g_print ("static const unsigned char %s[] = {\n", contents);
  92     g_free (contents);
  93     write_data (data, len);
  94     g_print ("};\n\n");
  95   }
  96   return 0;
  97 }