/******************************************************************************
 * Fast DXT - a realtime DXT compression tool
 *
 * Author : Luc Renambot
 *
 * Copyright (C) 2007 Electronic Visualization Laboratory,
 * University of Illinois at Chicago
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either Version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser Public License along
 * with this library; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 *****************************************************************************/

#include "libdxt.h"

int
main(int argc, char** argv)
{
  byte *in;
  byte *out;
  int nbbytes;

	// Initialize some timing functions and else
  aInitialize();

  /*
    Read an image.
  */    
  unsigned long width = atoi(argv[1]);
  unsigned long height = atoi(argv[2]);

  in = (byte*)memalign(16, width*height*4);
  memset(in, 0, width*height*4);
  
  FILE *f=fopen(argv[3], "rb");
  fread(in, 1, width*height*4, f);
  fclose(f);

  out = (byte*)memalign(16, width*height*4);
  memset(out, 0, width*height*4);

  fprintf(stderr, "Converting from raw: %ldx%ld\n", width, height);

#define NUM_LOOPS 100

  double t1, t2;

  t1 = aTime();
  for (int k=0;k<NUM_LOOPS;k++)
    {
      //CompressDXT(in, out, width, height, FORMAT_DXT5YCOCG, 4);
      //CompressDXT(in, out, width, height, FORMAT_DXT5, 4);
      CompressDXT(in, out, width, height, FORMAT_DXT1, 2);
    }
  t2 = aTime();

  fprintf(stderr, "Time %.2f sec, Single %.2f sec, Freq %.2f Hz\n",
	  t2-t1, (t2-t1)/(double)NUM_LOOPS, ((double)NUM_LOOPS)/(t2-t1) );
  fprintf(stderr, "MP/sec %.2f\n",
	  ((double)(width*height*NUM_LOOPS)) / ((t2-t1)*1000000.0) );

#if 1
  FILE *g=fopen("out.dxt", "wb+");
  fwrite(&width, 4, 1, g);
  fwrite(&height, 4, 1, g);
  //nbbytes = width * height * 4 / 4; //DXT5
  nbbytes = width * height * 3 / 6; // DXT1
  fwrite(out, 1, nbbytes, g);
  fclose(g);
#endif

  memfree(in);
  memfree(out);

  return 0;
}