nuclear@12: /* dither matrices taken directly from:
nuclear@12:  * http://caca.zoy.org/wiki/libcaca/study/2
nuclear@12:  */
nuclear@0: #ifndef DITHER_MATRIX_H_
nuclear@0: #define DITHER_MATRIX_H_
nuclear@0: 
nuclear@0: static const float dither_matrix2[2][2] = {
nuclear@0: 	{0, 3}, {2, 1}
nuclear@0: };
nuclear@0: 
nuclear@0: static const float dither_matrix4[4][4] = {
nuclear@0: 	{0, 12, 3, 15},
nuclear@0: 	{8, 4, 11, 7},
nuclear@0: 	{2, 14, 1, 13},
nuclear@0: 	{10, 6, 9, 5}
nuclear@0: };
nuclear@0: 
nuclear@0: static const float dither_matrix8[8][8] = {
nuclear@0: 	{0, 48, 12, 60, 3, 51, 15, 63},
nuclear@0: 	{32, 16, 44, 28, 35, 19, 47, 31},
nuclear@0: 	{8, 56, 4, 52, 11, 59, 7, 55},
nuclear@0: 	{40, 24, 36, 20, 43, 27, 39, 23},
nuclear@0: 	{2, 50, 14, 62, 1, 49, 13, 61},
nuclear@0: 	{34, 18, 46, 30, 33, 17, 45, 29},
nuclear@0: 	{10, 58, 6, 54, 9, 57, 5, 53},
nuclear@0: 	{42, 26, 38, 22, 41, 25, 37, 21}
nuclear@0: };
nuclear@0: 
nuclear@3: static const float halftone_matrix8[8][8] = {
nuclear@3: 	{24, 10, 12, 26, 35, 47, 49, 37},
nuclear@3: 	{8, 0, 2, 14, 45, 59, 61, 51},
nuclear@3: 	{22, 6, 4, 16, 43, 57, 63, 53},
nuclear@3: 	{30, 20, 18, 28, 33, 41, 55, 39},
nuclear@3: 	{34, 46, 48, 36, 25, 11, 13, 27},
nuclear@3: 	{44, 58, 60, 50, 9, 1, 3, 15},
nuclear@3: 	{42, 56, 62, 52, 23, 7, 5, 17},
nuclear@3: 	{32, 40, 54, 38, 31, 21, 19, 29}
nuclear@3: };
nuclear@3: 
nuclear@0: #endif	/* DITHER_MATRIX_H_ */