1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
/*
* Copyright © 2012 Keith Packard <keithp@keithp.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <stdint.h>
#define AO_CONVERT_TEST
typedef int32_t alt_t;
typedef int32_t pres_t;
#include "ao_host.h"
#include "ao_convert_pa.c"
#define STEP_P 1
#define STEP_A 1
static inline int i_abs(int i) { return i < 0 ? -i : i; }
int
main (int argc, char **argv)
{
int i;
int32_t p_to_a, p_to_a_to_p;
int32_t a_to_p, a_to_p_to_a;
int max_p_error = 0, max_p_error_p = -1;
int max_a_error = 0, max_a_error_a = -1;
int p_error;
int a_error;
int ret = 0;
for (i = 0; i < 120000 + STEP_P; i += STEP_P) {
if (i > 120000)
i = 120000;
p_to_a = ao_pa_to_altitude(i);
p_to_a_to_p = ao_altitude_to_pa(p_to_a);
p_error = i_abs(p_to_a_to_p - i);
if (p_error > max_p_error) {
max_p_error = p_error;
max_p_error_p = i;
}
// printf ("pa %d alt %d pa %d\n",
// i, p_to_a, p_to_a_to_p);
}
for (i = -1450; i < 40000 + STEP_A; i += STEP_A) {
a_to_p = ao_altitude_to_pa(i);
a_to_p_to_a = ao_pa_to_altitude(a_to_p);
a_error = i_abs(a_to_p_to_a - i);
if (a_error > max_a_error) {
max_a_error = a_error;
max_a_error_a = i;
}
// printf ("alt %d pa %d alt %d\n",
// i, a_to_p, a_to_p_to_a);
}
if (max_p_error > 2) {
printf ("max p error %d at %d\n", max_p_error,
max_p_error_p);
ret++;
}
if (max_a_error > 1) {
printf ("max a error %d at %d\n", max_a_error,
max_a_error_a);
ret++;
}
return ret;
}
|
