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Revision 392 - (download) (annotate)
Wed Sep 4 18:44:41 2002 UTC (17 years, 10 months ago)
File size: 987 byte(s)
This commit was manufactured by cvs2svn to create branch 'dev-api-3'.
#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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