update vibration handling
[pcsx_rearmed.git] / deps / libretro-common / include / clamping.h
CommitLineData
3719602c
PC
1/* Copyright (C) 2010-2020 The RetroArch team
2 *
3 * ---------------------------------------------------------------------------------------
4 * The following license statement only applies to this file (clamping.h).
5 * ---------------------------------------------------------------------------------------
6 *
7 * Permission is hereby granted, free of charge,
8 * to any person obtaining a copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation the rights to
10 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
11 * and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
16 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23#ifndef _LIBRETRO_SDK_CLAMPING_H
24#define _LIBRETRO_SDK_CLAMPING_H
25
26#include <stdint.h>
27#include <retro_inline.h>
28
29/**
30 * clamp_float:
31 * @val : initial value
32 * @lower : lower limit that value should be clamped against
33 * @upper : upper limit that value should be clamped against
34 *
35 * Clamps a floating point value.
36 *
37 * Returns: a clamped value of initial float value @val.
38 */
39static INLINE float clamp_float(float val, float lower, float upper)
40{
41 if (val < lower)
42 return lower;
43 if (val > upper)
44 return upper;
45 return val;
46}
47
48/**
49 * clamp_8bit:
50 * @val : initial value
51 *
52 * Clamps an unsigned 8-bit value.
53 *
54 * Returns: a clamped value of initial unsigned 8-bit value @val.
55 */
56static INLINE uint8_t clamp_8bit(int val)
57{
58 if (val > 255)
59 return 255;
60 if (val < 0)
61 return 0;
62 return (uint8_t)val;
63}
64
65#endif