scummvm/scumm/smush/codec47.cpp

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2001/2002 The ScummVM project
 *
 * 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 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.
 *
 * $Header$
 *
 */

#include <stdafx.h>
#include "scumm/scumm.h"
#include "engine.h"
#include "codec47.h"
#include "chunk.h"
#include "blitter.h"

static const int16 codec37_table[] = {
		0,  0,  1,  0,  2,  0,  3,  0,  3,  0,  3,  0,  3,
		0,  2,  0,  1,  0,  0,  0,  0,  0,  0,  0,  1,  0,
		2,  0,  2,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,
		0,  1,  0,  2,  0,  3,  0,  3,  0,  3,  0,  3,  0,
		2,  0,  1,  0,  1,  0,  1,  0,  2,  0,  2,  0,  0,
		0,  2,  0,  5,  0,  7,  0,  7,  0,  7,  0,  7,  0,
		7,  0,  7,  0,  5,  0,  2,  0,  0,  0,  0,  0,  0,
		0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
		1,  0,  3,  0,  4,  0,  6,  0,  7,  0,  7,  0,  7,
		0,  7,  0,  6,  0,  4,  0,  3,  0,  1,  0, -1, -1,
		0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,
		0,  2,  0,  3,  0,  5,  0,  8,  0, 13,  0, 21,  0,
	 -1,  0, -2,  0, -3,  0, -5,  0, -8,  0,-13,  0,-17,
		0,-21,  0,  0,  1,  1,  1,  2,  1,  3,  1,  5,  1,
		8,  1, 13,  1, 21,  1, -1,  1, -2,  1, -3,  1, -5,
		1, -8,  1,-13,  1,-17,  1,-21,  1,  0,  2,  1,  2,
		2,  2,  3,  2,  5,  2,  8,  2, 13,  2, 21,  2, -1,
		2, -2,  2, -3,  2, -5,  2, -8,  2,-13,  2,-17,  2,
	-21,  2,  0,  3,  1,  3,  2,  3,  3,  3,  5,  3,  8,
		3, 13,  3, 21,  3, -1,  3, -2,  3, -3,  3, -5,  3,
	 -8,  3,-13,  3,-17,  3,-21,  3,  0,  5,  1,  5,  2,
		5,  3,  5,  5,  5,  8,  5, 13,  5, 21,  5, -1,  5,
	 -2,  5, -3,  5, -5,  5, -8,  5,-13,  5,-17,  5,-21,
		5,  0,  8,  1,  8,  2,  8,  3,  8,  5,  8,  8,  8,
	 13,  8, 21,  8, -1,  8, -2,  8, -3,  8, -5,  8, -8,
		8,-13,  8,-17,  8,-21,  8,  0, 13,  1, 13,  2, 13,
		3, 13,  5, 13,  8, 13, 13, 13, 21, 13, -1, 13, -2,
	 13, -3, 13, -5, 13, -8, 13,-13, 13,-17, 13,-21, 13,
		0, 21,  1, 21,  2, 21,  3, 21,  5, 21,  8, 21, 13,
	 21, 21, 21, -1, 21, -2, 21, -3, 21, -5, 21, -8, 21,
	-13, 21,-17, 21,-21, 21,  0, -1,  1, -1,  2, -1,  3,
	 -1,  5, -1,  8, -1, 13, -1, 21, -1, -1, -1, -2, -1,
	 -3, -1, -5, -1, -8, -1,-13, -1,-17, -1,-21, -1,  0,
	 -2,  1, -2,  2, -2,  3, -2,  5, -2,  8, -2, 13, -2,
	 21, -2, -1, -2, -2, -2, -3, -2, -5, -2, -8, -2,-13,
	 -2,-17, -2,-21, -2,  0, -3,  1, -3,  2, -3,  3, -3,
		5, -3,  8, -3, 13, -3, 21, -3, -1, -3, -2, -3, -3,
	 -3, -5, -3, -8, -3,-13, -3,-17, -3,-21, -3,  0, -5,
		1, -5,  2, -5,  3, -5,  5, -5,  8, -5, 13, -5, 21,
	 -5, -1, -5, -2, -5, -3, -5, -5, -5, -8, -5,-13, -5,
	-17, -5,-21, -5,  0, -8,  1, -8,  2, -8,  3, -8,  5,
	 -8,  8, -8, 13, -8, 21, -8, -1, -8, -2, -8, -3, -8,
	 -5, -8, -8, -8,-13, -8,-17, -8,-21, -8,  0,-13,  1,
	-13,  2,-13,  3,-13,  5,-13,  8,-13, 13,-13, 21,-13,
	 -1,-13, -2,-13, -3,-13, -5,-13, -8,-13,-13,-13,-17,
	-13,-21,-13,  0,-17,  1,-17,  2,-17,  3,-17,  5,-17,
		8,-17, 13,-17, 21,-17, -1,-17, -2,-17, -3,-17, -5,
	-17, -8,-17,-13,-17,-17,-17,-21,-17,  0,-21,  1,-21,
		2,-21,  3,-21,  5,-21,  8,-21, 13,-21, 21,-21, -1,
	-21, -2,-21, -3,-21, -5,-21, -8,-21,-13,-21,-17,-21,
		0,  0, -8,-29,  8,-29,-18,-25, 17,-25,  0,-23, -6,
	-22,  6,-22,-13,-19, 12,-19,  0,-18, 25,-18,-25,-17,
	 -5,-17,  5,-17,-10,-15, 10,-15,  0,-14, -4,-13,  4,
	-13, 19,-13,-19,-12, -8,-11, -2,-11,  0,-11,  2,-11,
		8,-11,-15,-10, -4,-10,  4,-10, 15,-10, -6, -9, -1,
	 -9,  1, -9,  6, -9,-29, -8,-11, -8, -8, -8, -3, -8,
		3, -8,  8, -8, 11, -8, 29, -8, -5, -7, -2, -7,  0,
	 -7,  2, -7,  5, -7,-22, -6, -9, -6, -6, -6, -3, -6,
	 -1, -6,  1, -6,  3, -6,  6, -6,  9, -6, 22, -6,-17,
	 -5, -7, -5, -4, -5, -2, -5,  0, -5,  2, -5,  4, -5,
		7, -5, 17, -5,-13, -4,-10, -4, -5, -4, -3, -4, -1,
	 -4,  0, -4,  1, -4,  3, -4,  5, -4, 10, -4, 13, -4,
	 -8, -3, -6, -3, -4, -3, -3, -3, -2, -3, -1, -3,  0,
	 -3,  1, -3,  2, -3,  4, -3,  6, -3,  8, -3,-11, -2,
	 -7, -2, -5, -2, -3, -2, -2, -2, -1, -2,  0, -2,  1,
	 -2,  2, -2,  3, -2,  5, -2,  7, -2, 11, -2, -9, -1,
	 -6, -1, -4, -1, -3, -1, -2, -1, -1, -1,  0, -1,  1,
	 -1,  2, -1,  3, -1,  4, -1,  6, -1,  9, -1,-31,  0,
	-23,  0,-18,  0,-14,  0,-11,  0, -7,  0, -5,  0, -4,
		0, -3,  0, -2,  0, -1,  0,  0,-31,  1,  0,  2,  0,
		3,  0,  4,  0,  5,  0,  7,  0, 11,  0, 14,  0, 18,
		0, 23,  0, 31,  0, -9,  1, -6,  1, -4,  1, -3,  1,
	 -2,  1, -1,  1,  0,  1,  1,  1,  2,  1,  3,  1,  4,
		1,  6,  1,  9,  1,-11,  2, -7,  2, -5,  2, -3,  2,
	 -2,  2, -1,  2,  0,  2,  1,  2,  2,  2,  3,  2,  5,
		2,  7,  2, 11,  2, -8,  3, -6,  3, -4,  3, -2,  3,
	 -1,  3,  0,  3,  1,  3,  2,  3,  3,  3,  4,  3,  6,
		3,  8,  3,-13,  4,-10,  4, -5,  4, -3,  4, -1,  4,
		0,  4,  1,  4,  3,  4,  5,  4, 10,  4, 13,  4,-17,
		5, -7,  5, -4,  5, -2,  5,  0,  5,  2,  5,  4,  5,
		7,  5, 17,  5,-22,  6, -9,  6, -6,  6, -3,  6, -1,
		6,  1,  6,  3,  6,  6,  6,  9,  6, 22,  6, -5,  7,
	 -2,  7,  0,  7,  2,  7,  5,  7,-29,  8,-11,  8, -8,
		8, -3,  8,  3,  8,  8,  8, 11,  8, 29,  8, -6,  9,
	 -1,  9,  1,  9,  6,  9,-15, 10, -4, 10,  4, 10, 15,
	 10, -8, 11, -2, 11,  0, 11,  2, 11,  8, 11, 19, 12,
	-19, 13, -4, 13,  4, 13,  0, 14,-10, 15, 10, 15, -5,
	 17,  5, 17, 25, 17,-25, 18,  0, 18,-12, 19, 13, 19,
	 -6, 22,  6, 22,  0, 23,-17, 25, 18, 25, -8, 29,  8,
	 29,  0, 31,  0,  0, -6,-22,  6,-22,-13,-19, 12,-19,
		0,-18, -5,-17,  5,-17,-10,-15, 10,-15,  0,-14, -4,
	-13,  4,-13, 19,-13,-19,-12, -8,-11, -2,-11,  0,-11,
		2,-11,  8,-11,-15,-10, -4,-10,  4,-10, 15,-10, -6,
	 -9, -1, -9,  1, -9,  6, -9,-11, -8, -8, -8, -3, -8,
		0, -8,  3, -8,  8, -8, 11, -8, -5, -7, -2, -7,  0,
	 -7,  2, -7,  5, -7,-22, -6, -9, -6, -6, -6, -3, -6,
	 -1, -6,  1, -6,  3, -6,  6, -6,  9, -6, 22, -6,-17,
	 -5, -7, -5, -4, -5, -2, -5, -1, -5,  0, -5,  1, -5,
		2, -5,  4, -5,  7, -5, 17, -5,-13, -4,-10, -4, -5,
	 -4, -3, -4, -2, -4, -1, -4,  0, -4,  1, -4,  2, -4,
		3, -4,  5, -4, 10, -4, 13, -4, -8, -3, -6, -3, -4,
	 -3, -3, -3, -2, -3, -1, -3,  0, -3,  1, -3,  2, -3,
		3, -3,  4, -3,  6, -3,  8, -3,-11, -2, -7, -2, -5,
	 -2, -4, -2, -3, -2, -2, -2, -1, -2,  0, -2,  1, -2,
		2, -2,  3, -2,  4, -2,  5, -2,  7, -2, 11, -2, -9,
	 -1, -6, -1, -5, -1, -4, -1, -3, -1, -2, -1, -1, -1,
		0, -1,  1, -1,  2, -1,  3, -1,  4, -1,  5, -1,  6,
	 -1,  9, -1,-23,  0,-18,  0,-14,  0,-11,  0, -7,  0,
	 -5,  0, -4,  0, -3,  0, -2,  0, -1,  0,  0,-23,  1,
		0,  2,  0,  3,  0,  4,  0,  5,  0,  7,  0, 11,  0,
	 14,  0, 18,  0, 23,  0, -9,  1, -6,  1, -5,  1, -4,
		1, -3,  1, -2,  1, -1,  1,  0,  1,  1,  1,  2,  1,
		3,  1,  4,  1,  5,  1,  6,  1,  9,  1,-11,  2, -7,
		2, -5,  2, -4,  2, -3,  2, -2,  2, -1,  2,  0,  2,
		1,  2,  2,  2,  3,  2,  4,  2,  5,  2,  7,  2, 11,
		2, -8,  3, -6,  3, -4,  3, -3,  3, -2,  3, -1,  3,
		0,  3,  1,  3,  2,  3,  3,  3,  4,  3,  6,  3,  8,
		3,-13,  4,-10,  4, -5,  4, -3,  4, -2,  4, -1,  4,
		0,  4,  1,  4,  2,  4,  3,  4,  5,  4, 10,  4, 13,
		4,-17,  5, -7,  5, -4,  5, -2,  5, -1,  5,  0,  5,
		1,  5,  2,  5,  4,  5,  7,  5, 17,  5,-22,  6, -9,
		6, -6,  6, -3,  6, -1,  6,  1,  6,  3,  6,  6,  6,
		9,  6, 22,  6, -5,  7, -2,  7,  0,  7,  2,  7,  5,
		7,-11,  8, -8,  8, -3,  8,  0,  8,  3,  8,  8,  8,
	 11,  8, -6,  9, -1,  9,  1,  9,  6,  9,-15, 10, -4,
	 10,  4, 10, 15, 10, -8, 11, -2, 11,  0, 11,  2, 11,
		8, 11, 19, 12,-19, 13, -4, 13,  4, 13,  0, 14,-10,
	 15, 10, 15, -5, 17,  5, 17,  0, 18,-12, 19, 13, 19,
	 -6, 22,  6, 22,  0, 23
};

static const int16 codec47_table[] = {
		0,   0,  -1, -43,   6, -43,  -9, -42,  13, -41,
	-16, -40,  19, -39, -23, -36,  26, -34,  -2, -33,
	  4, -33, -29, -32,  -9, -32,  11, -31, -16, -29,
	 32, -29,  18, -28, -34, -26, -22, -25,  -1, -25,
	  3, -25,  -7, -24,   8, -24,  24, -23,  36, -23,
	-12, -22,  13, -21, -38, -20,   0, -20, -27, -19,
	 -4, -19,   4, -19, -17, -18,  -8, -17,   8, -17,
	 18, -17,  28, -17,  39, -17, -12, -15,  12, -15,
	-21, -14,  -1, -14,   1, -14, -41, -13,  -5, -13,
	  5, -13,  21, -13, -31, -12, -15, -11,  -8, -11,
	  8, -11,  15, -11,  -2, -10,   1, -10,  31, -10,
	-23,  -9, -11,  -9,  -5,  -9,   4,  -9,  11,  -9,
	 42,  -9,   6,  -8,  24,  -8, -18,  -7,  -7,  -7,
	 -3,  -7,  -1,  -7,   2,  -7,  18,  -7, -43,  -6,
	-13,  -6,  -4,  -6,   4,  -6,   8,  -6, -33,  -5,
	 -9,  -5,  -2,  -5,   0,  -5,   2,  -5,   5,  -5,
	 13,  -5, -25,  -4,  -6,  -4,  -3,  -4,   3,  -4,
	  9,  -4, -19,  -3,  -7,  -3,  -4,  -3,  -2,  -3,
	 -1,  -3,   0,  -3,   1,  -3,   2,  -3,   4,  -3,
	  6,  -3,  33,  -3, -14,  -2, -10,  -2,  -5,  -2,
	 -3,  -2,  -2,  -2,  -1,  -2,   0,  -2,   1,  -2,
	  2,  -2,   3,  -2,   5,  -2,   7,  -2,  14,  -2,
	 19,  -2,  25,  -2,  43,  -2,  -7,  -1,  -3,  -1,
	 -2,  -1,  -1,  -1,   0,  -1,   1,  -1,   2,  -1,
	  3,  -1,  10,  -1,  -5,   0,  -3,   0,  -2,   0,
	 -1,   0,   1,   0,   2,   0,   3,   0,   5,   0,
	  7,   0, -10,   1,  -7,   1,  -3,   1,  -2,   1,
	 -1,   1,   0,   1,   1,   1,   2,   1,   3,   1,
	-43,   2, -25,   2, -19,   2, -14,   2,  -5,   2,
	 -3,   2,  -2,   2,  -1,   2,   0,   2,   1,   2,
	  2,   2,   3,   2,   5,   2,   7,   2,  10,   2,
	 14,   2, -33,   3,  -6,   3,  -4,   3,  -2,   3,
	 -1,   3,   0,   3,   1,   3,   2,   3,   4,   3,
	 19,   3,  -9,   4,  -3,   4,   3,   4,   7,   4,
	 25,   4, -13,   5,  -5,   5,  -2,   5,   0,   5,
	  2,   5,   5,   5,   9,   5,  33,   5,  -8,   6,
	 -4,   6,   4,   6,  13,   6,  43,   6, -18,   7,
	 -2,   7,   0,   7,   2,   7,   7,   7,  18,   7,
	-24,   8,  -6,   8, -42,   9, -11,   9,  -4,   9,
	  5,   9,  11,   9,  23,   9, -31,  10,  -1,  10,
	  2,  10, -15,  11,  -8,  11,   8,  11,  15,  11,
	 31,  12, -21,  13,  -5,  13,   5,  13,  41,  13,
	 -1,  14,   1,  14,  21,  14, -12,  15,  12,  15,
	-39,  17, -28,  17, -18,  17,  -8,  17,   8,  17,
	 17,  18,  -4,  19,   0,  19,   4,  19,  27,  19,
	 38,  20, -13,  21,  12,  22, -36,  23, -24,  23,
	 -8,  24,   7,  24,  -3,  25,   1,  25,  22,  25,
	 34,  26, -18,  28, -32,  29,  16,  29, -11,  31,
		9,  32,  29,  32,  -4,  33,   2,  33, -26,  34,
	 23,  36, -19,  39,  16,  40, -13,  41,   9,  42,
	 -6,  43,   1,  43,   0,   0,   0,   0,   0,   0
};

static const uint32 codec47_delta[] = {
				 0x0,  0x1010101,   0x2020202,   0x3030303,   0x4040404,
	 0x5050505,  0x6060606,   0x7070707,   0x8080808,   0x9090909,
	0x0A0A0A0A,  0x0B0B0B0B,  0x0C0C0C0C,  0x0D0D0D0D,  0x0E0E0E0E,
	0x0F0F0F0F,  0x10101010,  0x11111111,  0x12121212,  0x13131313,
	0x14141414,  0x15151515,  0x16161616,  0x17171717,  0x18181818,
	0x19191919,  0x1A1A1A1A,  0x1B1B1B1B,  0x1C1C1C1C,  0x1D1D1D1D,
	0x1E1E1E1E,  0x1F1F1F1F,  0x20202020,  0x21212121,  0x22222222,
	0x23232323,  0x24242424,  0x25252525,  0x26262626,  0x27272727,
	0x28282828,  0x29292929,  0x2A2A2A2A,  0x2B2B2B2B,  0x2C2C2C2C,
	0x2D2D2D2D,  0x2E2E2E2E,  0x2F2F2F2F,  0x30303030,  0x31313131,
	0x32323232,  0x33333333,  0x34343434,  0x35353535,  0x36363636,
	0x37373737,  0x38383838,  0x39393939,  0x3A3A3A3A,  0x3B3B3B3B,
	0x3C3C3C3C,  0x3D3D3D3D,  0x3E3E3E3E,  0x3F3F3F3F,  0x40404040,
	0x41414141,  0x42424242,  0x43434343,  0x44444444,  0x45454545,
	0x46464646,  0x47474747,  0x48484848,  0x49494949,  0x4A4A4A4A,
	0x4B4B4B4B,  0x4C4C4C4C,  0x4D4D4D4D,  0x4E4E4E4E,  0x4F4F4F4F,
	0x50505050,  0x51515151,  0x52525252,  0x53535353,  0x54545454,
	0x55555555,  0x56565656,  0x57575757,  0x58585858,  0x59595959,
	0x5A5A5A5A,  0x5B5B5B5B,  0x5C5C5C5C,  0x5D5D5D5D,  0x5E5E5E5E,
	0x5F5F5F5F,  0x60606060,  0x61616161,  0x62626262,  0x63636363,
	0x64646464,  0x65656565,  0x66666666,  0x67676767,  0x68686868,
	0x69696969,  0x6A6A6A6A,  0x6B6B6B6B,  0x6C6C6C6C,  0x6D6D6D6D,
	0x6E6E6E6E,  0x6F6F6F6F,  0x70707070,  0x71717171,  0x72727272,
	0x73737373,  0x74747474,  0x75757575,  0x76767676,  0x77777777,
	0x78787878,  0x79797979,  0x7A7A7A7A,  0x7B7B7B7B,  0x7C7C7C7C,
	0x7D7D7D7D,  0x7E7E7E7E,  0x7F7F7F7F,  0x80808080,  0x81818181,
	0x82828282,  0x83838383,  0x84848484,  0x85858585,  0x86868686,
	0x87878787,  0x88888888,  0x89898989,  0x8A8A8A8A,  0x8B8B8B8B,
	0x8C8C8C8C,  0x8D8D8D8D,  0x8E8E8E8E,  0x8F8F8F8F,  0x90909090,
	0x91919191,  0x92929292,  0x93939393,  0x94949494,  0x95959595,
	0x96969696,  0x97979797,  0x98989898,  0x99999999,  0x9A9A9A9A,
	0x9B9B9B9B,  0x9C9C9C9C,  0x9D9D9D9D,  0x9E9E9E9E,  0x9F9F9F9F,
	0x0A0A0A0A0, 0x0A1A1A1A1, 0x0A2A2A2A2, 0x0A3A3A3A3, 0x0A4A4A4A4,
	0x0A5A5A5A5, 0x0A6A6A6A6, 0x0A7A7A7A7, 0x0A8A8A8A8, 0x0A9A9A9A9,
	0x0AAAAAAAA, 0x0ABABABAB, 0x0ACACACAC, 0x0ADADADAD, 0x0AEAEAEAE,
	0x0AFAFAFAF, 0x0B0B0B0B0, 0x0B1B1B1B1, 0x0B2B2B2B2, 0x0B3B3B3B3,
	0x0B4B4B4B4, 0x0B5B5B5B5, 0x0B6B6B6B6, 0x0B7B7B7B7, 0x0B8B8B8B8,
	0x0B9B9B9B9, 0x0BABABABA, 0x0BBBBBBBB, 0x0BCBCBCBC, 0x0BDBDBDBD,
	0x0BEBEBEBE, 0x0BFBFBFBF, 0x0C0C0C0C0, 0x0C1C1C1C1, 0x0C2C2C2C2,
	0x0C3C3C3C3, 0x0C4C4C4C4, 0x0C5C5C5C5, 0x0C6C6C6C6, 0x0C7C7C7C7,
	0x0C8C8C8C8, 0x0C9C9C9C9, 0x0CACACACA, 0x0CBCBCBCB, 0x0CCCCCCCC,
	0x0CDCDCDCD, 0x0CECECECE, 0x0CFCFCFCF, 0x0D0D0D0D0, 0x0D1D1D1D1,
	0x0D2D2D2D2, 0x0D3D3D3D3, 0x0D4D4D4D4, 0x0D5D5D5D5, 0x0D6D6D6D6,
	0x0D7D7D7D7, 0x0D8D8D8D8, 0x0D9D9D9D9, 0x0DADADADA, 0x0DBDBDBDB,
	0x0DCDCDCDC, 0x0DDDDDDDD, 0x0DEDEDEDE, 0x0DFDFDFDF, 0x0E0E0E0E0,
	0x0E1E1E1E1, 0x0E2E2E2E2, 0x0E3E3E3E3, 0x0E4E4E4E4, 0x0E5E5E5E5,
	0x0E6E6E6E6, 0x0E7E7E7E7, 0x0E8E8E8E8, 0x0E9E9E9E9, 0x0EAEAEAEA,
	0x0EBEBEBEB, 0x0ECECECEC, 0x0EDEDEDED, 0x0EEEEEEEE, 0x0EFEFEFEF,
	0x0F0F0F0F0, 0x0F1F1F1F1, 0x0F2F2F2F2, 0x0F3F3F3F3, 0x0F4F4F4F4,
	0x0F5F5F5F5, 0x0F6F6F6F6, 0x0F7F7F7F7, 0x0F8F8F8F8, 0x0F9F9F9F9,
	0x0FAFAFAFA, 0x0FBFBFBFB, 0x0FCFCFCFC, 0x0FDFDFDFD, 0x0FEFEFEFE,
	0x0FFFFFFFF
};

static int32 last_table_width;

static int16 smush_buf_big[49664];
//static byte smush_mktable1[99072];
static int16 smush_buf_small[16384];
//static byte smush_mktable2[32768];
static byte smush_buffer[65536];

static int16 codec47_temp_table[256];

void mk_tables(int32 param) {
	int32 variable1, variable2, variable3, variable4, count_1, count_2;
	int32 tmp_param, tmp_param_tmp, tmp_value1, tmp_value2, b1, b2;
	int32 * tmp_table37_1_2, * tmp_table37_1_1, * tmp_table37_2_2, * tmp_table37_2_1;
	int32 value_table37_1_1, value_table37_1_2;
	int32 table[64], tmp_a, tmp_c, tmp_d, s, p, d, tmp_ib, tmp;
	int32 * table37_1 = 0, * table37_2 = 0, * tmp_table, l;
	byte * ptr;

	if (param == 8) {
		table37_1 = (int32*)&codec37_table[64];
		table37_2 = (int32*)&codec37_table[96];
		ptr = (byte*)&smush_buf_big + 384;
		for (l = 0; l < 256; l++) {
			*ptr = 0;
			ptr += 388;
		}
		ptr = (byte*)&smush_buf_big + 385;
		for (l = 0; l < 256; l++) {
			*ptr = 0;
			ptr += 388;
		}
	}

	if (param == 4) {
		table37_1 = (int32*)&codec37_table[0];
		table37_2 = (int32*)&codec37_table[32];
		ptr = (byte*)&smush_buf_small + 96;
		for (l = 0; l < 256; l++) {
			*ptr = 0;
			ptr += 128;
		}
		ptr = (byte*)&smush_buf_small + 97;
		for (l = 0; l < 256; l++) {
			*ptr = 0;
			ptr += 128;
		}
	}

	s = 0;
	p = 0;
	tmp_param = param * param;
	tmp_table37_1_1 = table37_1;
	tmp_table37_2_1 = table37_2;
	count_1 = 16;
	do {
		tmp_table37_1_2 = table37_1;
		tmp_table37_2_2 = table37_2;
		count_2 = 16;
		do {
			tmp = *(int32*)(tmp_table37_2_1);
			tmp_value1 = tmp;
			if (tmp == 0) {
				b1 = 0;
				goto label3;
			}
			if ((tmp_value1 - param) == -1) {
				b1 = 1;
				goto label3;
			} 
			b1 = 2;
			tmp = *(int32*)(tmp_table37_1_1);
			if (tmp != 0) {
				b1 = 0;
				tmp -= param;
				if (tmp == -1)
					b1 = 3;
				else
					b1 = 4;
			}
label3:
			tmp = *(int32*)(tmp_table37_2_2);
			tmp_value2 = tmp;
			if (tmp == 0) {
				b2 = 0;
				goto label4;
			}
			if ((tmp_value2 - param) == -1) {
				b2 = 1;
				goto label4;
			}
			tmp = *(int32*)(tmp_table37_1_2);
			if (tmp == 0) {
				b2 = 2;
				goto label4;
			}
			tmp -= param;
			if (tmp == -1)
				b2 = 3;
			else
				b2 = 4;
label4:
			tmp_param_tmp = tmp_param - 1;
			d = tmp_param_tmp;
			if(tmp_param != 0) {
				do {
					table[d] = 0;
				} while (d-- != 0);
			}
			value_table37_1_1 = *(int32*)(tmp_table37_1_1);
			value_table37_1_2 = *(int32*)(tmp_table37_1_2);
			tmp_c = abs(tmp_value2 - tmp_value1);
			tmp_a = abs(value_table37_1_2 - value_table37_1_1);
			if (tmp_c <= tmp_a) {
				tmp_c = tmp_a;
			}
			variable1 = 0;
			tmp_c++;
			variable2 = tmp_c;
			if (tmp_c <= 0)
				goto label27;
			do {
				tmp_a = variable2;
				if (tmp_a > 1) {
					tmp_c = tmp_a;
					tmp_a = variable1;
					tmp_c -= tmp_a;
					tmp_a = variable2;
					tmp_c--;
					tmp_a--;
					tmp_ib = tmp_a;
					tmp_d = value_table37_1_1;
					tmp_ib >>= 1;
					variable3 = tmp_a;
					tmp_a = value_table37_1_2;
					tmp_d *= variable1;
					tmp_a *= tmp_c;
					tmp_a += tmp_d;
					tmp_a += tmp_ib;
					tmp_a /= variable3;
					tmp_d = tmp_value2;
					variable4 = tmp_a;
					tmp_a = tmp_value1;
					tmp_d *= tmp_c;
					tmp_a *= variable1;
					tmp_d += tmp_a;
					tmp_a = tmp_d + tmp_ib;
					tmp_a /= variable3;
				} else {
					tmp_a = value_table37_1_1;
					variable4 = tmp_a;
					tmp_a = tmp_value1;
				}
				tmp_c = param;
				tmp_d = variable4;
				tmp_c *= tmp_a;
				tmp_c += tmp_d;
				tmp_table = &table[tmp_c];
				*(int32*)(tmp_table) = 1;
				if (b1 != 2)
					goto label8;
				if (b2 == 3)
					goto label11;
label8:
				if (b2 != 2)
					goto label9;
				if (b1 == 3)
					goto label11;
label9:
				if (b1 != 0)
					goto label10;
				if (b2 != 1)
					goto label11;
label10:
				if (b2 != 0)
					goto label12;
				if (b1 == 1)
					goto label13;
label11:
				if (tmp_a < 0)
					goto label26;
				tmp_c = param;
				tmp_c <<= 2;
				do {
					*(int32*)(tmp_table) = 1;
					tmp_table -= tmp_c / 4;
				} while (--tmp_a >= 0);
				goto label26;
label12:
				if (b1 != 1)
					goto label14;
label13:
				if (b2 != 0)
					goto label15;
label14:
				if (b2 != 1)
					goto label16;
				if (b1 == 0)
					goto label17;
label15:
				tmp_c = param;
				if (tmp_c <= tmp_a)
					goto label26;
				tmp_c <<= 2;
				tmp_d = param;
				tmp_d -= tmp_a;
				do {
					*(int32*)(tmp_table) = 1;
					tmp_table += tmp_c / 4;
				} while (--tmp_d != 0);
				goto label26;
label16:
				if (b1 != 0)
					goto label18;
label17:
				if (b2 == 1)
					goto label21;
label18:
				if (b2 != 0)
					goto label19;
				if (b1 == 1)
					goto label21;
label19:
				if (b1 != 3)
					goto label20;
				if (b2 != 2)
					goto label21;
label20:
				if (b2 != 3)
					goto label22;
				if (b1 == 2)
					goto label23;
label21:
				tmp_c = param;
				if (tmp_c <= variable4)
					goto label26;
				tmp_c -= variable4;
				d = tmp_c;
				do {
					*(uint32*)(tmp_table++) = 1;
				} while (--d != 0);
				goto label26;
label22:
				if (b1 != 2)
					goto label24;
label23:
				if (b2 != 3)
					goto label25;
label24:
				if (b2 != 2)
					goto label26;
				if (b1 == 3)
					goto label26;
label25:
				if (variable4 >= 0) {
					tmp_c = variable4 + 1;
					d = tmp_c;
					do {
						*(uint32*)(tmp_table--) = 1;
					} while (--d != 0);
				}
label26:;
			} while	(variable2 > ++variable1);
label27:
			if (tmp_param != 0) {
				if (param == 8) {
					tmp_c = tmp_param_tmp;
					do {
						if (table[tmp_c] != 0) {
							*((byte*)&smush_buf_big + 256 + s + *((byte*)&smush_buf_big + 384 + s)) = (byte)tmp_c;
							*((byte*)&smush_buf_big + 384 + s) = *((byte*)&smush_buf_big + 384 + s) + 1;
						} else {
							*((byte*)&smush_buf_big + 320 + s + *((byte*)&smush_buf_big + 385 + s)) = (byte)tmp_c;
							*((byte*)&smush_buf_big + 385 + s) = *((byte*)&smush_buf_big + 385 + s) + 1;
						}
					} while (tmp_c-- != 0);
				}
				if (param == 4) {
					tmp_c = tmp_param_tmp;
					do {
						if (table[tmp_c] != 0) {
							*((byte*)&smush_buf_small + 64 + p + *((byte*)&smush_buf_small + 96 + p)) = (byte)tmp_c;
							*((byte*)&smush_buf_small + 96 + p) = *((byte*)&smush_buf_small + 96 + p) + 1;
						} else {
							*((byte*)&smush_buf_small + 80 + p + *((byte*)&smush_buf_small + 97 + p)) = (byte)tmp_c;
							*((byte*)&smush_buf_small + 97 + p) = *((byte*)&smush_buf_small + 97 + p) + 1;
						}
					} while (tmp_c-- != 0);
				}
			}
			p += 128;
			s += 388;
			tmp_table37_1_2++;
			tmp_table37_2_2++;
		}	while (--count_2 != 0);
		tmp_table37_1_1++;
		tmp_table37_2_1++;
	} while (--count_1!= 0);
}

void make_tables(int32 width) {
	if (last_table_width == width)
		return;
	last_table_width = width;

	int32 a, c, d, s, tmp_value, tmp_offset;
	int16 tmp, tmp2;

	int16 * tmp_ptr = (int16*)&codec47_temp_table;
	int16 * ptr_table = (int16*)&codec47_table[1];
	do {
		int16 tmp_word = *(int16*)(ptr_table);
		ptr_table += 2;
		tmp_word *= (int16)width;
		tmp_word += *(int16*)(ptr_table - 3);
		tmp_ptr++;
		*(int16*)(tmp_ptr - 1) = tmp_word;
	} while (tmp_ptr < &codec47_temp_table[255]);
	a = 0;
	c = 0;
	s = 0;
	tmp_value = 0;
	do {
		d = 0;
		tmp = *((byte*)&smush_buf_small + 96 + c);
		if (tmp != 0) {
			do {
				tmp = *((byte*)&smush_buf_small + 64 + c + d);
				tmp2 = tmp;
				tmp2 >>= 2;
				tmp &= 3;
				tmp2 &= 0xFFFF00FF;
				tmp2 *= (int16)width;
				tmp2 += tmp;
				smush_buf_small[s + d] = tmp2;
				d++;
				tmp = *((byte*)&smush_buf_small + 96 + c);
			} while (tmp > d);
		}
		d = 0;
		tmp = *((byte*)&smush_buf_small + 97 + c);
		if (tmp != 0) {
			do {
				tmp = *((byte*)&smush_buf_small + 80 + c + d);
				tmp2 = tmp;
				tmp2 >>= 2;
				tmp &= 3;
				tmp2 &= 0xFFFF00FF;
				tmp2 *= (int16)width;
				tmp2 += tmp;
				smush_buf_small[16 + s + d] = tmp2;
				d++;
				tmp = *((byte*)&smush_buf_small + 97 + c);
			} while (tmp > d);
		}
		d = 0;
		tmp = *((byte*)&smush_buf_big + 384 + a);
		if (tmp != 0) {
			do {
				tmp = *((byte*)&smush_buf_big + 256 + a + d);
				tmp2 = tmp >> 3;
				tmp = tmp & 7;
				tmp2 &= 0xFFFF00FF;
				tmp2 *= (int16)width;
				tmp2 += tmp;
				tmp_offset = tmp_value;
				tmp_offset += d;
				d++;
				smush_buf_big[tmp_offset] = tmp2;
				tmp = *((byte*)&smush_buf_big + 384 + a);
			} while (tmp > d);
		}
		d = 0;
		tmp = *((byte*)&smush_buf_big + 385 + a);
		if (tmp != 0) {
			do {
				tmp = *((byte*)&smush_buf_big + 320 + a + d);
				tmp2 = tmp >> 3;
				tmp = tmp & 7;
				tmp2 &= 0xFFFF00FF;
				tmp2 *= (int16)width;
				tmp2 += tmp;
				tmp_offset = tmp_value;
				tmp_offset += d;
				d++;
				smush_buf_big[64 + tmp_offset] = tmp2;
				tmp = *((byte*)&smush_buf_big + 385 + a);
			} while (tmp > d);
		}
		
		a += 388;
		tmp_value += 194;
		c += 128;
		s += 64;
	} while (s < 16384);
}
	
static void bomp_decode(byte *dst, byte *src, int32 len) {
	byte code;
	byte color;
	int32 num;

	do {
		code = *src++;
		if (code & 1) {
			num = (code >> 1) + 1;
			color = *src++;
			memset(dst, color, num);
			dst += num;
		} else {
			num = (code >> 1) + 1;
			memcpy(dst, src, num);
			dst += num;
			src += num;
		}
	} while (len -= num);
}

static int32 codec47_decode2_offset1;
static int32 codec47_decode2_offset2;
static int16 * codec47_decode2_table;
static int32 d_pitch;
static byte * codec47_decode2_param_ptr;
static int16 * codec47_decode2_buf_small;
static int16 * codec47_decode2_buf_big;
static int32 codec47_subgfx_width_blocks;
static int32 codec47_subgfx_height_blocks;
static int32 codec47_subgfx_width_pixels;
static byte * d_src;
static byte * d_dst;

static void codec47_subgfx_lev4() {
	int32 tmp, tmp2;
	byte code = *d_src;
	if (code < 0xF8) {
		d_src++;
		tmp2 = codec47_decode2_table[code] + codec47_decode2_offset1;
		*(uint16*)(d_dst + (d_pitch * 0)) = *(uint16*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint16*)(d_dst + (d_pitch * 1)) = *(uint16*)(d_dst + (d_pitch * 1) + tmp2);
		return;
	}
	if (code == 0xFF) {
		*(uint16*)(d_dst + (d_pitch * 0)) = *(uint16*)(d_src + (d_pitch * 0) + 1);
		*(uint16*)(d_dst + (d_pitch * 1)) = *(uint16*)(d_src + (d_pitch * 1) + 3);
		d_src += 5;
		return;
	}
	if (code == 0xFE) {
		tmp = *(d_src + 1);
		int32 val = tmp | tmp << 8;
		d_src += 2;
		*(uint16*)(d_dst + (d_pitch * 0)) = (int16)val;
		*(uint16*)(d_dst + (d_pitch * 1)) = (int16)val;
		return;
	}
	if (code == 0xFC) {
		tmp2 = codec47_decode2_offset2;
		d_src++;
		*(uint16*)(d_dst + (d_pitch * 0)) = *(uint16*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint16*)(d_dst + (d_pitch * 1)) = *(uint16*)(d_dst + (d_pitch * 1) + tmp2);
		return;
	}
	tmp = *(codec47_decode2_param_ptr + code);
	int32 val = tmp | tmp << 8;
	d_src++;
	*(uint16*)(d_dst + (d_pitch * 0)) = (int16)val;
	*(uint16*)(d_dst + (d_pitch * 1)) = (int16)val;
}

static void codec47_subgfx_lev3() {
	int32 tmp, tmp2;
	byte code = *d_src;
	if (code < 0xF8) {
		d_src++;
		tmp2 = codec47_decode2_table[code] + codec47_decode2_offset1;
		byte * dst2 = d_dst + d_pitch * 2;
		*(uint32*)(dst2 + (d_pitch * 0)) = *(uint32*)(dst2 + (d_pitch * 0) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 0)) = *(uint32*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 1)) = *(uint32*)(dst2 + (d_pitch * 1) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 1)) = *(uint32*)(d_dst + (d_pitch * 1) + tmp2);
		return;
	}
	if (code == 0xFF) {
		d_src++;
		byte * tmp_dst = d_dst;
		codec47_subgfx_lev4();
		d_dst += 2;
		codec47_subgfx_lev4();
		d_dst += d_pitch * 2 - 2;
		codec47_subgfx_lev4();
		d_dst += 2;
		codec47_subgfx_lev4();
		d_dst = tmp_dst;
		return;
	}
	if (code == 0xFE) {
		int32 val = codec47_delta[*(d_src + 1)];
		d_src += 2;
		*(uint32*)(d_dst + (d_pitch * 0)) = val;
		*(uint32*)(d_dst + (d_pitch * 1)) = val;
		*(uint32*)(d_dst + (d_pitch * 2)) = val;
		*(uint32*)(d_dst + (d_pitch * 3)) = val;
		return;
	}
	if (code == 0xFD) {
		byte * tmp_ptr = (*(d_src + 1) << 7) + (byte*)codec47_decode2_buf_small;
		int32 l = *(tmp_ptr + 96);
		byte val = *(d_src + 2);
		int16 * tmp_ptr2 = (int16*)tmp_ptr;
		do {
			*(d_dst + *(tmp_ptr2)) = val;
			tmp_ptr2++;
		} while (--l > 0);
		l = *(tmp_ptr + 97);
		val = *(d_src + 3);
		tmp_ptr2 = (int16*)(tmp_ptr + 32);
		do {
			*(d_dst + *(tmp_ptr2)) = val;
			tmp_ptr2++;
		} while (--l > 0);
		d_src += 4;
		return;
	}
	if (code == 0xFC) {
		d_src++;
		tmp2 = codec47_decode2_offset2;
		byte * dst2 = d_dst + d_pitch * 2;
		*(uint32*)(dst2 + (d_pitch * 0)) = *(uint32*)(dst2 + (d_pitch * 0) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 0)) = *(uint32*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 1)) = *(uint32*)(dst2 + (d_pitch * 1) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 1)) = *(uint32*)(d_dst + (d_pitch * 1) + tmp2);
		return;
	}
	tmp = *(codec47_decode2_param_ptr + code);
	d_src++;
	int32 val = codec47_delta[tmp];
	*(uint32*)(d_dst + (d_pitch * 0)) = val;
	*(uint32*)(d_dst + (d_pitch * 1)) = val;
	*(uint32*)(d_dst + (d_pitch * 2)) = val;
	*(uint32*)(d_dst + (d_pitch * 3)) = val;
}

static void codec47_subgfx_lev2() {
	int32 tmp, tmp2;
	byte code = *d_src;
	if (code < 0xF8) {
		d_src++;
		tmp2 = codec47_decode2_table[code] + codec47_decode2_offset1;
		byte * dst2 = d_dst + d_pitch * 4;
		*(uint32*)(dst2 + (d_pitch * 0) + 0) = *(uint32*)(dst2 + (d_pitch * 0) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 0) + 0) = *(uint32*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 0) + 4) = *(uint32*)(dst2 + (d_pitch * 0) + tmp2 + 4);
		*(uint32*)(d_dst + (d_pitch * 0) + 4) = *(uint32*)(d_dst + (d_pitch * 0) + tmp2 + 4);
		*(uint32*)(dst2 + (d_pitch * 1) + 0) = *(uint32*)(dst2 + (d_pitch * 1) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 1) + 0) = *(uint32*)(d_dst + (d_pitch * 1) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 1) + 4) = *(uint32*)(dst2 + (d_pitch * 1) + tmp2 + 4);
		*(uint32*)(d_dst + (d_pitch * 1) + 4) = *(uint32*)(d_dst + (d_pitch * 1) + tmp2 + 4);
		*(uint32*)(dst2 + (d_pitch * 2) + 0) = *(uint32*)(dst2 + (d_pitch * 2) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 2) + 0) = *(uint32*)(d_dst + (d_pitch * 2) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 2) + 4) = *(uint32*)(dst2 + (d_pitch * 2) + tmp2 + 4);
		*(uint32*)(d_dst + (d_pitch * 2) + 4) = *(uint32*)(d_dst + (d_pitch * 2) + tmp2 + 4);
		*(uint32*)(dst2 + (d_pitch * 3) + 0) = *(uint32*)(dst2 + (d_pitch * 3) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 3) + 0) = *(uint32*)(d_dst + (d_pitch * 3) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 3) + 4) = *(uint32*)(dst2 + (d_pitch * 3) + tmp2 + 4);
		*(uint32*)(d_dst + (d_pitch * 3) + 4) = *(uint32*)(d_dst + (d_pitch * 3) + tmp2 + 4);
		return;
	}
	if (code == 0xFF) {
		d_src++;
		byte * tmp_dst = d_dst;
		codec47_subgfx_lev3();
		d_dst += 4;
		codec47_subgfx_lev3();
		d_dst += d_pitch * 4 - 4;
		codec47_subgfx_lev3();
		d_dst += 4;
		codec47_subgfx_lev3();
		d_dst = tmp_dst;
		return;
	}
	if (code == 0xFE) {
		int32 val = codec47_delta[*(d_src + 1)];
		d_src += 2;
		byte * dst2 = d_dst + d_pitch * 4;
		*(uint32*)(dst2 + (d_pitch * 0)) = val;
		*(uint32*)(d_dst + (d_pitch * 0)) = val;
		*(uint32*)(dst2 + (d_pitch * 0) + 4) = val;
		*(uint32*)(d_dst + (d_pitch * 0) + 4) = val;
		*(uint32*)(dst2 + (d_pitch * 1)) = val;
		*(uint32*)(d_dst + (d_pitch * 1)) = val;
		*(uint32*)(dst2 + (d_pitch * 1) + 4) = val;
		*(uint32*)(d_dst + (d_pitch * 1) + 4) = val;
		*(uint32*)(dst2 + (d_pitch * 2)) = val;
		*(uint32*)(d_dst + (d_pitch * 2)) = val;
		*(uint32*)(dst2 + (d_pitch * 2) + 4) = val;
		*(uint32*)(d_dst + (d_pitch * 2) + 4) = val;
		*(uint32*)(dst2 + (d_pitch * 3)) = val;
		*(uint32*)(d_dst + (d_pitch * 3)) = val;
		*(uint32*)(dst2 + (d_pitch * 3) + 4) = val;
		*(uint32*)(d_dst + (d_pitch * 3) + 4) = val;
		return;
	}
	if (code == 0xFD) {
		tmp = *(d_src + 1);
		tmp2 = tmp * 4;
		tmp <<= 7;
		int32 tmp3 = tmp2 + tmp * 2;
		byte * tmp_ptr = tmp + tmp3 + (byte*)codec47_decode2_buf_big;
		byte l = *(tmp_ptr + 384);
		byte val = *(d_src + 2);
		int16 * tmp_ptr2 = (int16*)tmp_ptr;
		do {
			*(d_dst + *(tmp_ptr2)) = val;
			tmp_ptr2++;
		} while (--l > 0);
		l = *(tmp_ptr + 385);
		val = *(d_src + 3);
		tmp_ptr2 = (int16*)(tmp_ptr + 128);
		do {
			*(d_dst + *(tmp_ptr2)) = val;
			tmp_ptr2++;
		} while (--l > 0);
		d_src += 4;
		return;
	}
	if (code == 0xFC) {
		d_src++;
		tmp2 = codec47_decode2_offset2;
		byte * dst2 = d_dst + d_pitch * 4;
		*(uint32*)(dst2 + (d_pitch * 0)) = *(uint32*)(dst2 + (d_pitch * 0) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 0)) = *(uint32*)(d_dst + (d_pitch * 0) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 0) + 4) = *(uint32*)(dst2 + (d_pitch * 0) + 4 + tmp2);
		*(uint32*)(d_dst + (d_pitch * 0) + 4) = *(uint32*)(d_dst + (d_pitch * 0) + 4 + tmp2);
		*(uint32*)(dst2 + (d_pitch * 1)) = *(uint32*)(dst2 + (d_pitch * 1) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 1)) = *(uint32*)(d_dst + (d_pitch * 1) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 1) + 4) = *(uint32*)(dst2 + (d_pitch * 1) + 4 + tmp2);
		*(uint32*)(d_dst + (d_pitch * 1) + 4) = *(uint32*)(d_dst + (d_pitch * 1) + 4 + tmp2);
		*(uint32*)(dst2 + (d_pitch * 2)) = *(uint32*)(dst2 + (d_pitch * 2) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 2)) = *(uint32*)(d_dst + (d_pitch * 2) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 2) + 4) = *(uint32*)(dst2 + (d_pitch * 2) + 4 + tmp2);
		*(uint32*)(d_dst + (d_pitch * 2) + 4) = *(uint32*)(d_dst + (d_pitch * 2) + 4 + tmp2);
		*(uint32*)(dst2 + (d_pitch * 3)) = *(uint32*)(dst2 + (d_pitch * 3) + tmp2);
		*(uint32*)(d_dst + (d_pitch * 3)) = *(uint32*)(d_dst + (d_pitch * 3) + tmp2);
		*(uint32*)(dst2 + (d_pitch * 3) + 4) = *(uint32*)(dst2 + (d_pitch * 3) + 4 + tmp2);
		*(uint32*)(d_dst + (d_pitch * 3) + 4) = *(uint32*)(d_dst + (d_pitch * 3) + 4 + tmp2);
		return;
	}
	tmp = *(codec47_decode2_param_ptr + code);
	d_src++;
	int32 val = codec47_delta[tmp];
	byte * dst2 = d_dst + d_pitch * 4;
	*(uint32*)(dst2 + (d_pitch * 0)) = val;
	*(uint32*)(d_dst + (d_pitch * 0)) = val;
	*(uint32*)(dst2 + (d_pitch * 0) + 4) = val;
	*(uint32*)(d_dst + (d_pitch * 0) + 4) = val;
	*(uint32*)(dst2 + (d_pitch * 1)) = val;
	*(uint32*)(d_dst + (d_pitch * 1)) = val;
	*(uint32*)(dst2 + (d_pitch * 1) + 4) = val;
	*(uint32*)(d_dst + (d_pitch * 1) + 4) = val;
	*(uint32*)(dst2 + (d_pitch * 2)) = val;
	*(uint32*)(d_dst + (d_pitch * 2)) = val;
	*(uint32*)(dst2 + (d_pitch * 2) + 4) = val;
	*(uint32*)(d_dst + (d_pitch * 2) + 4) = val;
	*(uint32*)(dst2 + (d_pitch * 3)) = val;
	*(uint32*)(d_dst + (d_pitch * 3)) = val;
	*(uint32*)(dst2 + (d_pitch * 3) + 4) = val;
	*(uint32*)(d_dst + (d_pitch * 3) + 4) = val;
}

static byte * g_out;

/*
static void disp() {
	g_scumm->_system->copy_rect((const byte *)g_out, 640, 0, 0, 640, 480);
	g_scumm->_system->update_screen();
	g_scumm->waitForTimer(100);
}
*/

static void decode2(byte * dst, byte * src, int32 offset1, int32 offset2, int32 pitch,
						 int16 * tmp_table, byte * param_ptr, int32 height, int32,
						 int16 * buf_small, int16 * buf_big) {
	d_dst = dst;
	d_src = src;
	codec47_decode2_offset1 = offset1;
	codec47_decode2_offset2 = offset2;
	d_pitch = pitch;
	codec47_decode2_table = tmp_table;
	codec47_decode2_param_ptr = param_ptr - 0xf8;
	codec47_decode2_buf_small = buf_small;
	codec47_decode2_buf_big = buf_big;
	codec47_subgfx_height_blocks = (height + 7) >> 3;
	codec47_subgfx_width_blocks = (pitch + 7) >> 3;
	codec47_subgfx_width_pixels = pitch << 3;
	codec47_subgfx_width_pixels -= pitch;

	do {
		int32 tmp_codec47_subgfx_width_blocks = codec47_subgfx_width_blocks;
		do {
			codec47_subgfx_lev2();
			d_dst += 8;
		} while (--tmp_codec47_subgfx_width_blocks);
		d_dst += codec47_subgfx_width_pixels;
	} while (--codec47_subgfx_height_blocks);
}

bool Codec47Decoder::initSize(const Point & p, const Rect & r) {
	if(r.width() != getRect().width() && r.height() != getRect().height()) {
		if(
			(r.width() != 640 || r.height() != 480)
			)
			return false;
		Decoder::initSize(p, r);
		clean();

		mk_tables(4);
		mk_tables(8);

		int32 frame_size = getRect().width() * getRect().height();
		_deltaSize = frame_size * 3;
		_deltaBuf = new byte[_deltaSize];
		_deltaBufs[0] = _deltaBuf;
		_deltaBufs[1] = _deltaBuf + frame_size;
		_curBuf = _deltaBuf + frame_size * 2;

		return true;
	}
	return false;
}

Codec47Decoder::Codec47Decoder() {
	_deltaBuf = 0;
}

void Codec47Decoder::clean() {
	last_table_width = -1;
	if(_deltaBuf) {
		delete []_deltaBuf;
		_deltaSize = 0;
		_deltaBuf = 0;
		_deltaBufs[0] = 0;
		_deltaBufs[1] = 0;
	}
}

Codec47Decoder::~Codec47Decoder() {
	clean();
}

bool Codec47Decoder::decode(Blitter & dst, Chunk & src) {
	g_out = dst.getPtr();
	int32 width = getRect().width();
	int32 height = getRect().height();
	int32 offset1 = _deltaBufs[1] - _curBuf;
	int32 offset2 = _deltaBufs[0] - _curBuf;

	int32 chunk_size = src.getSize() - 14;
	byte * chunk_buffer = (byte*)malloc(chunk_size);
	src.read(chunk_buffer, chunk_size);

	int32 first_word = READ_LE_UINT16(chunk_buffer + 0);

	byte * gfx_data = chunk_buffer + 26;
	byte * tmp_ptr, * tmp_ptr1, * tmp_ptr2, * tmp_ptr3;

	if (first_word == 0) {
		make_tables(width);
		memset(_deltaBufs[0], chunk_buffer[12], width * height);
		memset(_deltaBufs[1], chunk_buffer[13], width * height);
		_var100 = -1;
	}
	
	byte * tmp_curBuf = _curBuf;

	byte * ptr;
	int32 r, l, count;
	if ((chunk_buffer[4] & 1) != 0) {
		r = 0;
		ptr = (byte*)smush_buffer;
		count = r;
		do {
			l = count;
			if (ptr <= &smush_buffer[65536 + 256]) {
				tmp_ptr = ptr;
				do {
					byte tmp = *gfx_data++;
					*tmp_ptr = tmp;
					tmp_ptr += 256;
					smush_buffer[l + r] = tmp;
				} while (++l < 256);
			}
			r += 256;
			ptr += 257;
			count++;
		} while (ptr < &smush_buffer[65536 + 256]);
	}	

	switch(chunk_buffer[2]) {
	case 0:
		memcpy(_curBuf, gfx_data, width * height);
		_var104 = _curBuf;
		break;
	case 1:
		warning("codec47: not implemented decode1 proc");
//		decode1(_curBuf, gfx_data, width * height, &smush_buffer)
		_var104 = _curBuf;
		break;
	case 2:
//		if (((arg_7 & 16) != 0) && (param1 == 0))
//		if (chunk_buffer[3] == 0) {
//			_var100 = first_word;
//			free(chunk_buffer);
//			return false;
//		}
		if ((first_word - _var100) == 1) {
			decode2(tmp_curBuf, gfx_data, offset1, offset2, width,
					codec47_temp_table, chunk_buffer + 8, height, width * 8,
					smush_buf_small, smush_buf_big);
			_var104 = _curBuf;
		}
		break;
	case 3:
//		if (((arg_7 & 16) != 0) && (param1 == 0))
//		if (chunk_buffer[3] == 0) {
//			_var100 = first_word;
//			free(chunk_buffer);
//			return false;
//		}
		memcpy(_curBuf, _deltaBufs[1], width * height);
		_var104 = _curBuf;
		break;
	case 4:
//		if (((arg_7 & 16) != 0) && (param1 == 0))
//		if (chunk_buffer[3] == 0) {
//			_var100 = first_word;
//			free(chunk_buffer);
//			return false;
//		}
		memcpy(_curBuf, _deltaBufs[0], width * height);
		_var104 = _curBuf;
		break;
	case 5:
		bomp_decode(_curBuf, gfx_data, READ_LE_UINT32(chunk_buffer + 14));
		_var104 = _curBuf;
		break;
	}

	if (_var104 != 0) {
		dst.blit(_var104, width * height);
	}

	if ((first_word - _var100) == 1) {
		if (chunk_buffer[3] == 1) {
			tmp_ptr1 = _curBuf;
			_curBuf = _deltaBufs[1];
			_deltaBufs[1] = tmp_ptr1;
		} else if (chunk_buffer[3] == 2) {
			tmp_ptr = _deltaBufs[0];
			tmp_ptr2 = _deltaBufs[1];
			tmp_ptr3 = _curBuf;
			_deltaBufs[0] = tmp_ptr2;
			_deltaBufs[1] = tmp_ptr3;
			_curBuf = tmp_ptr;
		}
	}
	_var100 = first_word;

	free(chunk_buffer);

	return true;
}