GRASS GIS 8 Programmer's Manual 8.3.2(2024)-exported
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rgbpack.h
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1#ifndef _RGBPACK_H
2#define _RGBPACK_H
3
4#define RED_MASK 0x000000FF
5#define GRN_MASK 0x0000FF00
6#define BLU_MASK 0x00FF0000
7
8#define INT_TO_RED(i, r) (r = (i & RED_MASK))
9#define INT_TO_GRN(i, g) (g = (i & GRN_MASK) >> 8)
10#define INT_TO_BLU(i, b) (b = (i & BLU_MASK) >> 16)
11
12#define RGB_TO_INT(r, g, b, i) \
13 (i = (((r)&RED_MASK) + ((int)((g) << 8) & GRN_MASK) + \
14 ((int)((b) << 16) & BLU_MASK)))
15
16#define CONST_COLS 45
17#define COLUMNS 9
18
19#endif /* _RGBPACK_H */