Mercurial > hg > wm
diff Meerwald/bruyn_common.c @ 0:be303a3f5ea8
import
| author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
|---|---|
| date | Sun, 12 Aug 2007 13:14:34 +0200 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Meerwald/bruyn_common.c Sun Aug 12 13:14:34 2007 +0200 @@ -0,0 +1,44 @@ +#include "bruyn_common.h" + +gray lookup_pattern(int pattern, int c, int r) { +#define A CATEGORY_A +#define B CATEGORY_B + + gray pattern1[4][4] = + {{A, A, B, B}, + {A, A, B, B}, + {B, B, A, A}, + {B, B, A, A}}; + + gray pattern2[8][8] = + {{B, B, B, B, A, A, A, A}, + {B, B, B, B, A, A, A, A}, + {B, B, B, B, A, A, A, A}, + {B, B, B, B, A, A, A, A}, + {A, A, A, A, B, B, B, B}, + {A, A, A, A, B, B, B, B}, + {A, A, A, A, B, B, B, B}, + {A, A, A, A, B, B, B, B}}; + + gray pattern3[2][2] = + {{A, B}, {B, A}}; + +#undef A +#undef B + + switch (pattern) { + case 1: + return pattern1[r % 4][c % 4]; + break; + case 2: + return pattern2[r % 8][c % 8]; + break; + case 3: + return pattern3[r % 2][c % 2]; + break; + } + + return CATEGORY_VOID; +} + +