alpha-loop.c revision 1b18d63a 
1#include <stdio.h>
2#include <stdlib.h>
3#include "utils.h"
4
5#define WIDTH 400
6#define HEIGHT 200
7
8int
9main (int argc, char **argv)
10{
11    uint8_t *alpha = make_random_bytes (WIDTH * HEIGHT);
12    uint32_t *src = (uint32_t *)make_random_bytes (WIDTH * HEIGHT * 4);
13    uint32_t *dest = (uint32_t *)make_random_bytes (WIDTH * HEIGHT * 4);
14
15    pixman_image_t *a = pixman_image_create_bits (PIXMAN_a8, WIDTH, HEIGHT, (uint32_t *)alpha, WIDTH);
16    pixman_image_t *d = pixman_image_create_bits (PIXMAN_a8r8g8b8, WIDTH, HEIGHT, dest, WIDTH * 4);
17    pixman_image_t *s = pixman_image_create_bits (PIXMAN_a2r10g10b10, WIDTH, HEIGHT, src, WIDTH * 4);
18
19    fail_after (5, "Infinite loop detected: 5 seconds without progress\n");
20
21    pixman_image_set_alpha_map (s, a, 0, 0);
22    pixman_image_set_alpha_map (a, s, 0, 0);
23
24    pixman_image_composite (PIXMAN_OP_SRC, s, NULL, d, 0, 0, 0, 0, 0, 0, WIDTH, HEIGHT);
25
26    pixman_image_unref (s);
27
28    return 0;
29}
30