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clamping.h - add documentation

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twinaphex 2015-01-08 20:10:19 +01:00
parent a8982cd9ee
commit d36a6fc895
1 changed files with 18 additions and 0 deletions
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18
libretro-sdk/include/clamping.h
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@ -25,6 +25,16 @@
#include <stdint.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)
@ -34,6 +44,14 @@ static inline float clamp_float(float val, float lower, float 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)