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/* ScummVM - Scumm Interpreter
* Copyright (C) 2002-2003 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.
*
* $Header$
*/
#ifndef COMMON_UTIL_H
#define COMMON_UTIL_H
#include "scummsys.h"
#ifndef ABS
#define ABS(x) ((x) >= 0 ? (x) : -(x))
#endif
#ifndef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
template<class T>
static inline void SWAP(T &a, T &b) { T tmp = a; a = b; b = tmp; }
#define ARRAYSIZE(x) ((int)(sizeof(x) / sizeof(x[0])))
int RGBMatch(byte *palette, int r, int g, int b);
int Blend(int src, int dst, byte *palette);
void ClearBlendCache(byte *palette, int weight);
/*
* Print hexdump of the data passed in
*/
void hexdump(const byte * data, int len, int bytes_per_line = 16);
class RandomSource {
private:
uint32 _randSeed;
public:
RandomSource(uint32 seed = 0xA943DE33);
void setSeed(uint32 seed);
uint getRandomNumber(uint max);
uint getRandomNumberRng(uint min, uint max);
};
#endif
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