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
79
|
/*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __MATH_BASE_SAFE_INLINE_C__
#define __MATH_BASE_SAFE_INLINE_C__
#include "BLI_math_base_safe.h"
#include "BLI_utildefines.h"
#ifdef __cplusplus
extern "C" {
#endif
MINLINE float safe_divide(float a, float b)
{
return (b != 0.0f) ? a / b : 0.0f;
}
MINLINE float safe_modf(float a, float b)
{
return (b != 0.0f) ? fmodf(a, b) : 0.0f;
}
MINLINE float safe_logf(float a, float base)
{
if (UNLIKELY(a <= 0.0f || base <= 0.0f)) {
return 0.0f;
}
return safe_divide(logf(a), logf(base));
}
MINLINE float safe_sqrtf(float a)
{
return sqrtf(MAX2(a, 0.0f));
}
MINLINE float safe_inverse_sqrtf(float a)
{
return (a > 0.0f) ? 1.0f / sqrtf(a) : 0.0f;
}
MINLINE float safe_asinf(float a)
{
CLAMP(a, -1.0f, 1.0f);
return asinf(a);
}
MINLINE float safe_acosf(float a)
{
CLAMP(a, -1.0f, 1.0f);
return acosf(a);
}
MINLINE float safe_powf(float base, float exponent)
{
if (UNLIKELY(base < 0.0f && exponent != (int)exponent)) {
return 0.0f;
}
return powf(base, exponent);
}
#ifdef __cplusplus
}
#endif
#endif /* __MATH_BASE_SAFE_INLINE_C__ */
|