notaz.gp2x.de / pcsx_rearmed.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | */ | |
| 39 | static 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 | */ | |
| 56 | static 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 |