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Revision 1.1 - (download) (annotate)
Fri Mar 8 02:44:38 2002 UTC (19 years, 10 months ago) by Isibaar
Branch: MAIN
Branch point for: core
Initial revision
#ifndef _ZIGZAG_H_
#define _ZIGZAG_H_

static const uint16_t scan_tables[3][64] =
{
	{	// zig_zag_scan
	    0,	1,	8,	16, 9,	2,	3,	10,
		17, 24, 32, 25, 18, 11, 4,	5,
		12, 19, 26, 33, 40, 48, 41, 34,
		27, 20, 13, 6,	7,	14, 21, 28,
		35, 42, 49, 56, 57, 50, 43, 36,
		29, 22, 15, 23, 30, 37, 44, 51,
		58, 59, 52, 45, 38, 31, 39, 46,
		53, 60, 61, 54, 47, 55, 62, 63
	},

	{	// horizontal_scan
	    0,	1,	2,	3,	8,	9,	16, 17,
	    10, 11,	4,	5,	6,	7,	15, 14,
	    13, 12, 19, 18, 24, 25, 32, 33,
	    26, 27, 20, 21, 22, 23, 28, 29,
	    30, 31, 34, 35, 40, 41, 48, 49,
	    42, 43, 36, 37, 38, 39, 44, 45,
	    46, 47, 50, 51, 56, 57, 58, 59,
	    52, 53, 54, 55, 60, 61, 62, 63
	},

	{	// vertical_scan
	    0, 8, 16, 24, 1, 9, 2, 10,
	    17, 25, 32, 40, 48, 56, 57, 49,
	    41, 33, 26, 18, 3, 11, 4, 12,
	    19, 27, 34, 42, 50, 58, 35, 43,
	    51, 59, 20, 28, 5, 13, 6, 14,
	    21, 29, 36, 44, 52, 60, 37, 45,
	    53, 61, 22, 30, 7, 15, 23, 31,
	    38, 46, 54, 62, 39, 47, 55, 63
	}
};

#endif /* _ZIGZAG_H_ */

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