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