/***************************************************************************

 *

 * colour.h

 *

 ***************************************************************************

 *

 * colourspace conversion

 *

 ***************************************************************************/



#ifndef COLOUR_H_INCLUDED

#define COLOUR_H_INCLUDED



/*

 * includes

 */



/*

 * defines

 */



#define DITHER_RANDOM	1



#define MB_ORDER_Y00	0

#define MB_ORDER_Y10	1

#define MB_ORDER_Y01	2

#define MB_ORDER_Y11	3

#define MB_ORDER_U	4

#define MB_ORDER_V	5



/*

 * typedefs

 */



/*

 * structures

 */



/*

 * globals

 */



extern unsigned char	rBlock[256];

extern unsigned char	gBlock[256];

extern unsigned char	bBlock[256];

extern signed char	yBlock00[64];

extern signed char	yBlock10[64];

extern signed char	yBlock01[64];

extern signed char	yBlock11[64];

extern signed char	uBlock[64];

extern signed char	vBlock[64];



/*

 * function prototypes

 */



extern void YUVtoRGB(int y,int u,int v,int *r,int *g,int *b);

extern void RGBtoYUV(int r,int g,int b,int *y,int *u,int *v);

extern void CombineMacroBlock(void);

extern void SplitMacroBlock(void);



extern void CombineMacroBlock16(unsigned short *dest,int mod);

extern void CombineMacroBlock24(unsigned char *dest,int mod);



extern void SetDither(int mode);



#endif