/*
 *    Example program for the Allegro library, by Grzegorz Adam Hankiewicz.
 *
 *    This program demonstrates how to access the contents of an Allegro
 *    datafile (created by the grabber utility) linked to the exe by the
 *    exedat tool. It is basically the exdata example with minor
 *    modifications.
 *
 *    You may ask: how do you compile, append and exec your program?
 *
 *    Answer: like this...
 *
 *    1) Compile your program like normal. Use the magic filenames with '#'
 *       to load your data where needed.
 *
 *    2) Once you compressed your program, run "exedat foo.exe data.dat"
 *
 *    3) Finally run your program.
 *
 *    Note that appending data to the end of binaries may not be portable
 *    accross all platforms supported by Allegro.
 */


#include <allegro.h>


/* the grabber produces this header, which contains defines for the names
 * of all the objects in the datafile (BIG_FONT, SILLY_BITMAP, etc). We
 * still need to keep this, since we want to know the names of the objects.
 */
#include "example.h"



int main(int argc, char *argv[])
{
   DATAFILE *datafile;

   if (allegro_init() != 0)
      return 1;
   install_keyboard();

   if (set_gfx_mode(GFX_AUTODETECT, 320, 200, 0, 0) != 0) {
      if (set_gfx_mode(GFX_SAFE, 320, 200, 0, 0) != 0) {
	 set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
	 allegro_message("Unable to set any graphic mode\n%s\n",
			 allegro_error);
	 return 1;
      }
   }

   /* we still don't have a palette => Don't let Allegro twist colors */
   set_color_conversion(COLORCONV_NONE);

   /* load the datafile into memory */
   datafile = load_datafile("#");
   if (!datafile) {
      set_gfx_mode(GFX_TEXT, 0, 0, 0, 0);
      allegro_message("Unable to load the appended datafile!\n\nThis program"
		      " reads graphics from the end of the executable file.\n"
		      "Before running it, you must append this data with the "
		      "exedat utility.\n\nExample command line:\n\n"
		  #if (defined ALLEGRO_DOS) || (defined ALLEGRO_WINDOWS)
		      "\texedat exexedat.exe example.dat\n\n"
		  #else
		      "\texedat exexedat example.dat\n\n"
		  #endif
		      "To compress the appended data, pass the -c switch "
		      "to exedat.\n");
      return 1;
   }

   /* select the palette which was loaded from the datafile */
   set_palette(datafile[THE_PALETTE].dat);

   /* aha, set a palette and let Allegro convert colors when blitting */
   set_color_conversion(COLORCONV_TOTAL);
   
   /* display the bitmap from the datafile */
   textout_ex(screen, font, "This is the bitmap:", 32, 16,
	      makecol(255, 255, 255), -1);
   blit(datafile[SILLY_BITMAP].dat, screen, 0, 0, 64, 32, 64, 64);

   /* and use the font from the datafile */
   textout_ex(screen, datafile[BIG_FONT].dat, "And this is a big font!",
	      32, 128, makecol(0, 255, 0), -1);

   readkey();

   /* unload the datafile when we are finished with it */
   unload_datafile(datafile);

   return 0;
}

END_OF_MAIN()