1 /* babl - dynamically extendable universal pixel conversion library.
2 * Copyright (C) 2005, Øyvind Kolås.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 3 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General
15 * Public License along with this library; if not, see
16 * <https://www.gnu.org/licenses/>.
17 */
18
19
20 #include "config.h"
21 #include <math.h>
22 #include "babl-internal.h"
23
24 #define PIXELS 7
25 #define COMPONENTS 2048
26 #define TOLERANCE 0
27
28 float source_buf [PIXELS * COMPONENTS] =
29 {
30 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
31 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
32 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
33 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
34 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
35 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
36 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
37 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
38 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
39 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
40 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
41 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
42 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
43 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
44 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
45 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6,
46 /* the rest of the input buffer is nulls */
47 };
48
49 unsigned char reference_buf [PIXELS * COMPONENTS] =
50 {
51 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
52 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
53 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
54 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
55 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
56 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
57 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
58 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
59 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
60 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
61 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
62 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
63 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
64 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
65 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
66 26, 51, 77, 102, 128, 153, 26, 51, 77, 102, 128, 153,
67 /* the rest of the reference buffer is nulls */
68 };
69
70 unsigned char destination_buf [PIXELS * COMPONENTS];
71
72 static int
test(void)73 test (void)
74 {
75 int components;
76 int OK = 1;
77
78 for (components = 1; components < 2048; components ++)
79 {
80 const Babl *fish;
81 const Babl *src_fmt;
82 const Babl *dst_fmt;
83 int i;
84
85 src_fmt = babl_format_n (babl_type ("float"), components);
86 dst_fmt = babl_format_n (babl_type ("u8"), components);
87
88 fish = babl_fish (src_fmt, dst_fmt);
89
90 babl_process (fish, source_buf, destination_buf, PIXELS);
91
92 for (i = 0; i < PIXELS * components; i++)
93 {
94 if (abs (destination_buf[i] - reference_buf[i]) > TOLERANCE)
95 {
96 babl_log ("%i-components, pixel %i component %i is %i should be %i",
97 components, i / components, i % components, destination_buf[i], reference_buf[i]);
98 OK = 0;
99 }
100 }
101 }
102 if (!OK)
103 return -1;
104 return 0;
105 }
106
107 int
main(int argc,char ** argv)108 main (int argc,
109 char **argv)
110 {
111 babl_init ();
112 if (test ())
113 return -1;
114 babl_exit ();
115 return 0;
116 }
117