GRASS Programmer's Manual
6.4.2(2012)
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00001 #ifndef _RGBPACK_H 00002 #define _RGBPACK_H 00003 00004 #define RED_MASK 0x000000FF 00005 #define GRN_MASK 0x0000FF00 00006 #define BLU_MASK 0x00FF0000 00007 00008 #define INT_TO_RED(i, r) (r = (i & RED_MASK)) 00009 #define INT_TO_GRN(i, g) (g = (i & GRN_MASK) >> 8) 00010 #define INT_TO_BLU(i, b) (b = (i & BLU_MASK) >> 16) 00011 00012 #define RGB_TO_INT(r,g,b,i) (i = (((r) & RED_MASK) + \ 00013 ((int)((g) << 8) & GRN_MASK) + \ 00014 ((int)((b) << 16) & BLU_MASK))) 00015 00016 #define CONST_COLS 45 00017 #define COLUMNS 9 00018 00019 #endif /* _RGBPACK_H */