mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-29 19:20:48 +00:00
66 lines
2.2 KiB
C
66 lines
2.2 KiB
C
/* Copyright (C) 2010-2016 The RetroArch team
|
|
*
|
|
* ---------------------------------------------------------------------------------------
|
|
* The following license statement only applies to this file (boolean.h).
|
|
* ---------------------------------------------------------------------------------------
|
|
*
|
|
* Permission is hereby granted, free of charge,
|
|
* to any person obtaining a copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation the rights to
|
|
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
|
|
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _LIBRETRO_SDK_CLAMPING_H
|
|
#define _LIBRETRO_SDK_CLAMPING_H
|
|
|
|
#include <stdint.h>
|
|
#include <retro_inline.h>
|
|
|
|
/**
|
|
* clamp_float:
|
|
* @val : initial value
|
|
* @lower : lower limit that value should be clamped against
|
|
* @upper : upper limit that value should be clamped against
|
|
*
|
|
* Clamps a floating point value.
|
|
*
|
|
* Returns: a clamped value of initial float value @val.
|
|
*/
|
|
static INLINE float clamp_float(float val, float lower, float upper)
|
|
{
|
|
if (val < lower)
|
|
return lower;
|
|
if (val > upper)
|
|
return upper;
|
|
return val;
|
|
}
|
|
|
|
/**
|
|
* clamp_8bit:
|
|
* @val : initial value
|
|
*
|
|
* Clamps an unsigned 8-bit value.
|
|
*
|
|
* Returns: a clamped value of initial unsigned 8-bit value @val.
|
|
*/
|
|
static INLINE uint8_t clamp_8bit(int val)
|
|
{
|
|
if (val > 255)
|
|
return 255;
|
|
if (val < 0)
|
|
return 0;
|
|
return (uint8_t)val;
|
|
}
|
|
|
|
#endif
|