7 static const pixman_format_code_t formats[] =
19 static const pixman_op_t ops[] =
26 #define TRANSFORM(v00, v01, v10, v11) \
27 { { { v00, v01, WIDTH * pixman_fixed_1 / 2 }, \
28 { v10, v11, HEIGHT * pixman_fixed_1 / 2 }, \
29 { 0, 0, pixman_fixed_1 } } }
31 #define F1 pixman_fixed_1
33 static const pixman_transform_t transforms[] =
35 TRANSFORM (0, -1, 1, 0), /* wrong 90 degree rotation */
36 TRANSFORM (0, 1, -1, 0), /* wrong 270 degree rotation */
37 TRANSFORM (1, 0, 0, 1), /* wrong identity */
38 TRANSFORM (-1, 0, 0, -1), /* wrong 180 degree rotation */
39 TRANSFORM (0, -F1, F1, 0), /* correct 90 degree rotation */
40 TRANSFORM (0, F1, -F1, 0), /* correct 270 degree rotation */
41 TRANSFORM (F1, 0, 0, F1), /* correct identity */
42 TRANSFORM (-F1, 0, 0, -F1), /* correct 180 degree rotation */
45 #define RANDOM_FORMAT() \
46 (formats[prng_rand_n (ARRAY_LENGTH (formats))])
49 (ops[prng_rand_n (ARRAY_LENGTH (ops))])
51 #define RANDOM_TRANSFORM() \
52 (&(transforms[prng_rand_n (ARRAY_LENGTH (transforms))]))
55 on_destroy (pixman_image_t *image, void *data)
60 static pixman_image_t *
63 pixman_format_code_t format = RANDOM_FORMAT();
64 uint32_t *bytes, *orig;
65 pixman_image_t *image;
68 orig = bytes = malloc (WIDTH * HEIGHT * 4);
69 prng_randmemset (bytes, WIDTH * HEIGHT * 4, 0);
72 if (prng_rand_n (2) == 0)
74 bytes += (stride / 4) * (HEIGHT - 1);
78 image = pixman_image_create_bits (
79 format, WIDTH, HEIGHT, bytes, stride);
81 pixman_image_set_transform (image, RANDOM_TRANSFORM());
82 pixman_image_set_destroy_function (image, on_destroy, orig);
83 pixman_image_set_repeat (image, PIXMAN_REPEAT_NORMAL);
85 image_endian_swap (image);
91 test_transform (int testnum, int verbose)
93 pixman_image_t *src, *dest;
101 pixman_image_composite (RANDOM_OP(),
103 0, 0, 0, 0, WIDTH / 2, HEIGHT / 2,
106 crc = compute_crc32_for_image (0, dest);
108 pixman_image_unref (src);
109 pixman_image_unref (dest);
115 main (int argc, const char *argv[])
117 return fuzzer_test_main ("rotate", 15000,
119 test_transform, argc, argv);