Mercurial > hg > wm
comparison Meerwald/bruyn_common.c @ 0:be303a3f5ea8
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| author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
|---|---|
| date | Sun, 12 Aug 2007 13:14:34 +0200 |
| parents | |
| children |
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| -1:000000000000 | 0:be303a3f5ea8 |
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| 1 #include "bruyn_common.h" | |
| 2 | |
| 3 gray lookup_pattern(int pattern, int c, int r) { | |
| 4 #define A CATEGORY_A | |
| 5 #define B CATEGORY_B | |
| 6 | |
| 7 gray pattern1[4][4] = | |
| 8 {{A, A, B, B}, | |
| 9 {A, A, B, B}, | |
| 10 {B, B, A, A}, | |
| 11 {B, B, A, A}}; | |
| 12 | |
| 13 gray pattern2[8][8] = | |
| 14 {{B, B, B, B, A, A, A, A}, | |
| 15 {B, B, B, B, A, A, A, A}, | |
| 16 {B, B, B, B, A, A, A, A}, | |
| 17 {B, B, B, B, A, A, A, A}, | |
| 18 {A, A, A, A, B, B, B, B}, | |
| 19 {A, A, A, A, B, B, B, B}, | |
| 20 {A, A, A, A, B, B, B, B}, | |
| 21 {A, A, A, A, B, B, B, B}}; | |
| 22 | |
| 23 gray pattern3[2][2] = | |
| 24 {{A, B}, {B, A}}; | |
| 25 | |
| 26 #undef A | |
| 27 #undef B | |
| 28 | |
| 29 switch (pattern) { | |
| 30 case 1: | |
| 31 return pattern1[r % 4][c % 4]; | |
| 32 break; | |
| 33 case 2: | |
| 34 return pattern2[r % 8][c % 8]; | |
| 35 break; | |
| 36 case 3: | |
| 37 return pattern3[r % 2][c % 2]; | |
| 38 break; | |
| 39 } | |
| 40 | |
| 41 return CATEGORY_VOID; | |
| 42 } | |
| 43 | |
| 44 |