diff options
Diffstat (limited to 'libs/pixman-0.40.0/test/filter-reduction-test.c')
-rw-r--r-- | libs/pixman-0.40.0/test/filter-reduction-test.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libs/pixman-0.40.0/test/filter-reduction-test.c b/libs/pixman-0.40.0/test/filter-reduction-test.c new file mode 100644 index 0000000..705fa4b --- /dev/null +++ b/libs/pixman-0.40.0/test/filter-reduction-test.c @@ -0,0 +1,112 @@ +#include <stdlib.h> +#include <stdio.h> +#include "utils.h" + +static const pixman_fixed_t entries[] = +{ + pixman_double_to_fixed (-1.0), + pixman_double_to_fixed (-0.5), + pixman_double_to_fixed (-1/3.0), + pixman_double_to_fixed (0.0), + pixman_double_to_fixed (0.5), + pixman_double_to_fixed (1.0), + pixman_double_to_fixed (1.5), + pixman_double_to_fixed (2.0), + pixman_double_to_fixed (3.0), +}; + +#define SIZE 12 + +static uint32_t +test_scale (const pixman_transform_t *xform, uint32_t crc) +{ + uint32_t *srcbuf, *dstbuf; + pixman_image_t *src, *dest; + + srcbuf = malloc (SIZE * SIZE * 4); + prng_randmemset (srcbuf, SIZE * SIZE * 4, 0); + src = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, SIZE, SIZE, srcbuf, SIZE * 4); + + dstbuf = malloc (SIZE * SIZE * 4); + prng_randmemset (dstbuf, SIZE * SIZE * 4, 0); + dest = pixman_image_create_bits ( + PIXMAN_a8r8g8b8, SIZE, SIZE, dstbuf, SIZE * 4); + + pixman_image_set_transform (src, xform); + pixman_image_set_repeat (src, PIXMAN_REPEAT_NORMAL); + pixman_image_set_filter (src, PIXMAN_FILTER_BILINEAR, NULL, 0); + + image_endian_swap (src); + image_endian_swap (dest); + + pixman_image_composite (PIXMAN_OP_SRC, + src, NULL, dest, + 0, 0, 0, 0, 0, 0, + SIZE, SIZE); + + crc = compute_crc32_for_image (crc, dest); + + pixman_image_unref (src); + pixman_image_unref (dest); + + free (srcbuf); + free (dstbuf); + + return crc; +} + +#if BILINEAR_INTERPOLATION_BITS == 7 +#define CHECKSUM 0x02169677 +#elif BILINEAR_INTERPOLATION_BITS == 4 +#define CHECKSUM 0xE44B29AC +#else +#define CHECKSUM 0x00000000 +#endif + +int +main (int argc, const char *argv[]) +{ + const pixman_fixed_t *end = entries + ARRAY_LENGTH (entries); + const pixman_fixed_t *t0, *t1, *t2, *t3, *t4, *t5; + uint32_t crc = 0; + + prng_srand (0x56EA1DBD); + + for (t0 = entries; t0 < end; ++t0) + { + for (t1 = entries; t1 < end; ++t1) + { + for (t2 = entries; t2 < end; ++t2) + { + for (t3 = entries; t3 < end; ++t3) + { + for (t4 = entries; t4 < end; ++t4) + { + for (t5 = entries; t5 < end; ++t5) + { + pixman_transform_t xform = { + { { *t0, *t1, *t2 }, + { *t3, *t4, *t5 }, + { 0, 0, pixman_fixed_1 } } + }; + + crc = test_scale (&xform, crc); + } + } + } + } + } + } + + if (crc != CHECKSUM) + { + printf ("filter-reduction-test failed! (checksum=0x%08X, expected 0x%08X)\n", crc, CHECKSUM); + return 1; + } + else + { + printf ("filter-reduction-test passed (checksum=0x%08X)\n", crc); + return 0; + } +} |