121 lines
2.7 KiB
C
121 lines
2.7 KiB
C
#include <stdlib.h>
|
|
#include "utils.h"
|
|
|
|
#define WIDTH 32
|
|
#define HEIGHT 32
|
|
|
|
static const pixman_format_code_t formats[] =
|
|
{
|
|
PIXMAN_a8r8g8b8,
|
|
PIXMAN_a8b8g8r8,
|
|
PIXMAN_x8r8g8b8,
|
|
PIXMAN_x8b8g8r8,
|
|
PIXMAN_r5g6b5,
|
|
PIXMAN_b5g6r5,
|
|
PIXMAN_a8,
|
|
PIXMAN_a1,
|
|
};
|
|
|
|
static const pixman_op_t ops[] =
|
|
{
|
|
PIXMAN_OP_OVER,
|
|
PIXMAN_OP_SRC,
|
|
PIXMAN_OP_ADD,
|
|
};
|
|
|
|
#define TRANSFORM(v00, v01, v10, v11) \
|
|
{ { { v00, v01, WIDTH * pixman_fixed_1 / 2 }, \
|
|
{ v10, v11, HEIGHT * pixman_fixed_1 / 2 }, \
|
|
{ 0, 0, pixman_fixed_1 } } }
|
|
|
|
#define F1 pixman_fixed_1
|
|
|
|
static const pixman_transform_t transforms[] =
|
|
{
|
|
TRANSFORM (0, -1, 1, 0), /* wrong 90 degree rotation */
|
|
TRANSFORM (0, 1, -1, 0), /* wrong 270 degree rotation */
|
|
TRANSFORM (1, 0, 0, 1), /* wrong identity */
|
|
TRANSFORM (-1, 0, 0, -1), /* wrong 180 degree rotation */
|
|
TRANSFORM (0, -F1, F1, 0), /* correct 90 degree rotation */
|
|
TRANSFORM (0, F1, -F1, 0), /* correct 270 degree rotation */
|
|
TRANSFORM (F1, 0, 0, F1), /* correct identity */
|
|
TRANSFORM (-F1, 0, 0, -F1), /* correct 180 degree rotation */
|
|
};
|
|
|
|
#define RANDOM_FORMAT() \
|
|
(formats[prng_rand_n (ARRAY_LENGTH (formats))])
|
|
|
|
#define RANDOM_OP() \
|
|
(ops[prng_rand_n (ARRAY_LENGTH (ops))])
|
|
|
|
#define RANDOM_TRANSFORM() \
|
|
(&(transforms[prng_rand_n (ARRAY_LENGTH (transforms))]))
|
|
|
|
static void
|
|
on_destroy (pixman_image_t *image, void *data)
|
|
{
|
|
free (data);
|
|
}
|
|
|
|
static pixman_image_t *
|
|
make_image (void)
|
|
{
|
|
pixman_format_code_t format = RANDOM_FORMAT();
|
|
uint32_t *bytes, *orig;
|
|
pixman_image_t *image;
|
|
int stride;
|
|
|
|
orig = bytes = malloc (WIDTH * HEIGHT * 4);
|
|
prng_randmemset (bytes, WIDTH * HEIGHT * 4, 0);
|
|
|
|
stride = WIDTH * 4;
|
|
if (prng_rand_n (2) == 0)
|
|
{
|
|
bytes += (stride / 4) * (HEIGHT - 1);
|
|
stride = - stride;
|
|
}
|
|
|
|
image = pixman_image_create_bits (
|
|
format, WIDTH, HEIGHT, bytes, stride);
|
|
|
|
pixman_image_set_transform (image, RANDOM_TRANSFORM());
|
|
pixman_image_set_destroy_function (image, on_destroy, orig);
|
|
pixman_image_set_repeat (image, PIXMAN_REPEAT_NORMAL);
|
|
|
|
image_endian_swap (image);
|
|
|
|
return image;
|
|
}
|
|
|
|
static uint32_t
|
|
test_transform (int testnum, int verbose)
|
|
{
|
|
pixman_image_t *src, *dest;
|
|
uint32_t crc;
|
|
|
|
prng_srand (testnum);
|
|
|
|
src = make_image ();
|
|
dest = make_image ();
|
|
|
|
pixman_image_composite (RANDOM_OP(),
|
|
src, NULL, dest,
|
|
0, 0, 0, 0, WIDTH / 2, HEIGHT / 2,
|
|
WIDTH, HEIGHT);
|
|
|
|
crc = compute_crc32_for_image (0, dest);
|
|
|
|
pixman_image_unref (src);
|
|
pixman_image_unref (dest);
|
|
|
|
return crc;
|
|
}
|
|
|
|
int
|
|
main (int argc, const char *argv[])
|
|
{
|
|
return fuzzer_test_main ("rotate", 15000,
|
|
0x81E9EC2F,
|
|
test_transform, argc, argv);
|
|
}
|