1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
void
libglitter_reorder_rasters(void **rasters, enum libglitter_colour colour1,
enum libglitter_colour colour2, enum libglitter_colour colour3)
{
void *channel1 = rasters[colour1];
void *channel2 = rasters[colour2];
void *channel3 = rasters[colour3];
rasters[0] = channel1;
rasters[1] = channel2;
rasters[2] = channel3;
}
#else
int
main(void)
{
const char r = 'R', g = 'G', b = 'B';
const void *rasters[3];
#define T(CH1, CH2, CH3)\
do {\
rasters[0] = &r;\
rasters[1] = &g;\
rasters[2] = &b;\
libglitter_reorder_rasters((void *)rasters,\
LIBGLITTER_CHANNEL_##CH1,\
LIBGLITTER_CHANNEL_##CH2,\
LIBGLITTER_CHANNEL_##CH3);\
ASSERT(*(const char *)rasters[0] == *#CH1);\
ASSERT(*(const char *)rasters[1] == *#CH2);\
ASSERT(*(const char *)rasters[2] == *#CH3);\
} while (0)
T(RED, GREEN, BLUE);
T(RED, BLUE, GREEN);
T(GREEN, RED, BLUE);
T(GREEN, BLUE, RED);
T(BLUE, RED, GREEN);
T(BLUE, GREEN, RED);
return 0;
}
#endif
|
