/*  gngeo a neogeo emulator
 *  Copyright (C) 2001 Peponas Mathieu
 * 
 *  This program is free software; you can redistribute it and/or modify  
 *  it under the terms of the GNU General Public License as published by   
 *  the Free Software Foundation; either version 2 of the License, or    
 *  (at your option) any later version.
 *
 *  This program 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 Library General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 
 */

/* Common function/var for hqx filter from hiend3D */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "SDL.h"


#ifdef I386_ASM

Uint32   LUT16to32[65536];
Uint32   RGBtoYUV[65536];

SDL_Surface *tmps;
SDL_Rect tmps_rect =	{ 0,  0, 304, 224};

int InitLUTs(void)
{
  int i, j, k, r, g, b, Y, u, v;

  for (i=0; i<65536; i++)
    LUT16to32[i] = ((i & 0xF800) << 8) + ((i & 0x07E0) << 5) + ((i & 0x001F) << 3);

  for (i=0; i<32; i++)
  for (j=0; j<64; j++)
  for (k=0; k<32; k++)
  {
    r = i << 3;
    g = j << 2;
    b = k << 3;
    Y = (r + g + b) >> 2;
    u = 128 + ((r - b) >> 2);
    v = 128 + ((-r + 2*g -b)>>3);
    RGBtoYUV[ (i << 11) + (j << 5) + k ] = (Y<<16) + (u<<8) + v;
  }

}

#endif