1#include "cursor.h"
2#include <assert.h>
3
4int main(void) {
5 uint8_t before[4 * 4 * 3] = {0}, after[4 * 4 * 3] = {0};
6 struct sg_rect rect;
7 uint8_t black[] = {0,0,0,0, 255,255,255,0, 0,0,0,0, 20,40,60,0};
8 uint8_t white[] = {255,255,255,0, 0,0,0,0, 0,0,0,0, 147,167,187,0};
9 uint8_t rgba[16], invert[4], word[4];
10 assert(sg_difference(before, after, 4, 3, &rect) == 0);
11 after[3] = 255;
12 assert(sg_difference(before, after, 4, 3, &rect) == 0);
13 after[(1 * 4 + 1) * 4] = 1;
14 after[(2 * 4 + 3) * 4 + 2] = 2;
15 assert(sg_difference(before, after, 4, 3, &rect) == 1);
16 assert(rect.x == 1 && rect.y == 1 && rect.width == 3 && rect.height == 2);
17 assert(sg_difference(before, after, 0, 3, &rect) == -1);
18 assert(sg_difference(before, after, 65535, 65535, &rect) == -1);
19 assert(sg_rgba(black, white, rgba, invert, 4));
20 assert(rgba[3] == 0 && invert[0] == 0);
21 assert(rgba[7] == 0 && invert[1] == (SG_XOR_RED | SG_XOR_GREEN | SG_XOR_BLUE));
22 assert(rgba[11] == 255 && rgba[8] == 0 && invert[2] == 0);
23 assert(rgba[12] == 120 && rgba[13] == 80 && rgba[14] == 40 && rgba[15] == 128 && invert[3] == 0);
24 black[0] = 0; black[1] = 0; black[2] = 255;
25 white[0] = 255; white[1] = 255; white[2] = 0;
26 assert(sg_rgba(black, white, rgba, invert, 1) && invert[0] == SG_XOR_RED && rgba[3] == 0);
27 black[2] = 127; white[2] = 128;
28 assert(!sg_rgba(black, white, rgba, invert, 1));
29 sg_word(word, 0x12345678);
30 assert(word[0] == 0x12 && word[1] == 0x34 && word[2] == 0x56 && word[3] == 0x78);
31 return 0;
32}