1 #include <stdlib.h>
2 #include <stdio.h>
3 #include "utils.h"
4
5 static const pixman_fixed_t entries[] =
6 {
7 pixman_double_to_fixed (-1.0),
8 pixman_double_to_fixed (-0.5),
9 pixman_double_to_fixed (-1/3.0),
10 pixman_double_to_fixed (0.0),
11 pixman_double_to_fixed (0.5),
12 pixman_double_to_fixed (1.0),
13 pixman_double_to_fixed (1.5),
14 pixman_double_to_fixed (2.0),
15 pixman_double_to_fixed (3.0),
16 };
17
18 #define SIZE 12
19
20 static uint32_t
test_scale(const pixman_transform_t * xform,uint32_t crc)21 test_scale (const pixman_transform_t *xform, uint32_t crc)
22 {
23 uint32_t *srcbuf, *dstbuf;
24 pixman_image_t *src, *dest;
25
26 srcbuf = malloc (SIZE * SIZE * 4);
27 prng_randmemset (srcbuf, SIZE * SIZE * 4, 0);
28 src = pixman_image_create_bits (
29 PIXMAN_a8r8g8b8, SIZE, SIZE, srcbuf, SIZE * 4);
30
31 dstbuf = malloc (SIZE * SIZE * 4);
32 prng_randmemset (dstbuf, SIZE * SIZE * 4, 0);
33 dest = pixman_image_create_bits (
34 PIXMAN_a8r8g8b8, SIZE, SIZE, dstbuf, SIZE * 4);
35
36 pixman_image_set_transform (src, xform);
37 pixman_image_set_repeat (src, PIXMAN_REPEAT_NORMAL);
38 pixman_image_set_filter (src, PIXMAN_FILTER_BILINEAR, NULL, 0);
39
40 image_endian_swap (src);
41 image_endian_swap (dest);
42
43 pixman_image_composite (PIXMAN_OP_SRC,
44 src, NULL, dest,
45 0, 0, 0, 0, 0, 0,
46 SIZE, SIZE);
47
48 crc = compute_crc32_for_image (crc, dest);
49
50 pixman_image_unref (src);
51 pixman_image_unref (dest);
52
53 free (srcbuf);
54 free (dstbuf);
55
56 return crc;
57 }
58
59 #if BILINEAR_INTERPOLATION_BITS == 7
60 #define CHECKSUM 0x02169677
61 #elif BILINEAR_INTERPOLATION_BITS == 4
62 #define CHECKSUM 0xE44B29AC
63 #else
64 #define CHECKSUM 0x00000000
65 #endif
66
67 int
main(int argc,const char * argv[])68 main (int argc, const char *argv[])
69 {
70 const pixman_fixed_t *end = entries + ARRAY_LENGTH (entries);
71 const pixman_fixed_t *t0, *t1, *t2, *t3, *t4, *t5;
72 uint32_t crc = 0;
73
74 prng_srand (0x56EA1DBD);
75
76 for (t0 = entries; t0 < end; ++t0)
77 {
78 for (t1 = entries; t1 < end; ++t1)
79 {
80 for (t2 = entries; t2 < end; ++t2)
81 {
82 for (t3 = entries; t3 < end; ++t3)
83 {
84 for (t4 = entries; t4 < end; ++t4)
85 {
86 for (t5 = entries; t5 < end; ++t5)
87 {
88 pixman_transform_t xform = {
89 { { *t0, *t1, *t2 },
90 { *t3, *t4, *t5 },
91 { 0, 0, pixman_fixed_1 } }
92 };
93
94 crc = test_scale (&xform, crc);
95 }
96 }
97 }
98 }
99 }
100 }
101
102 if (crc != CHECKSUM)
103 {
104 printf ("filter-reduction-test failed! (checksum=0x%08X, expected 0x%08X)\n", crc, CHECKSUM);
105 return 1;
106 }
107 else
108 {
109 printf ("filter-reduction-test passed (checksum=0x%08X)\n", crc);
110 return 0;
111 }
112 }
113