12 pixman_box32_t boxes[] = {
17 pixman_box32_t boxes2[] = {
21 pixman_box32_t boxes3[] = {
27 pixman_image_t *image, *fill;
28 pixman_color_t white = {
35 /* This used to go into an infinite loop before pixman-region.c
36 * was fixed to not use explict "short" variables
38 pixman_region32_init_rect (&r1, 0, 0, 20, 64000);
39 pixman_region32_init_rect (&r2, 0, 0, 20, 64000);
40 pixman_region32_init_rect (&r3, 0, 0, 20, 64000);
42 pixman_region32_subtract (&r1, &r2, &r3);
45 /* This would produce a region containing an empty
46 * rectangle in it. Such regions are considered malformed,
47 * but using an empty rectangle for initialization should
50 pixman_region32_init_rects (&r1, boxes, 3);
52 b = pixman_region32_rectangles (&r1, &i);
58 assert (b[i].x1 < b[i].x2);
59 assert (b[i].y1 < b[i].y2);
62 /* This would produce a rectangle containing the bounding box
63 * of the two rectangles. The correct result is to eliminate
64 * the broken rectangle.
66 pixman_region32_init_rects (&r1, boxes2, 2);
68 b = pixman_region32_rectangles (&r1, &i);
72 assert (b[0].x1 == 4);
73 assert (b[0].y1 == 1);
74 assert (b[0].x2 == 6);
75 assert (b[0].y2 == 7);
77 /* This should produce an empty region */
78 pixman_region32_init_rects (&r1, boxes3, 2);
80 b = pixman_region32_rectangles (&r1, &i);
84 fill = pixman_image_create_solid_fill (&white);
85 for (i = 0; i < 100; i++)
89 pixman_region32_init (&r1);
91 /* Add some random rectangles */
92 for (j = 0; j < 64; j++)
93 pixman_region32_union_rect (&r1, &r1,
94 lcg_rand_n (image_size),
95 lcg_rand_n (image_size),
99 /* Clip to image size */
100 pixman_region32_init_rect (&r2, 0, 0, image_size, image_size);
101 pixman_region32_intersect (&r1, &r1, &r2);
102 pixman_region32_fini (&r2);
104 /* render region to a1 mask */
105 image = pixman_image_create_bits (PIXMAN_a1, image_size, image_size, NULL, 0);
106 pixman_image_set_clip_region32 (image, &r1);
107 pixman_image_composite32 (PIXMAN_OP_SRC,
110 image_size, image_size);
111 pixman_region32_init_from_image (&r2, image);
113 pixman_image_unref (image);
115 assert (pixman_region32_equal (&r1, &r2));
116 pixman_region32_fini (&r1);
117 pixman_region32_fini (&r2);
120 pixman_image_unref (fill);