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[util] Implement fclamp for fp special cases

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Joshua Ashton 2019-04-20 21:24:02 +01:00 committed by Philip Rebohle
parent ec197b49f9
commit 9280818a57
1 changed files with 10 additions and 0 deletions
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10
src/util/util_math.h
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@ -1,5 +1,7 @@
#pragma once #pragma once
#include <cmath>
namespace dxvk { namespace dxvk {
constexpr size_t CACHE_LINE_SIZE = 64; constexpr size_t CACHE_LINE_SIZE = 64;
@ -16,4 +18,12 @@ namespace dxvk {
return (what + to - 1) & ~(to - 1); return (what + to - 1) & ~(to - 1);
} }
// Equivalent of std::clamp for use with floating point numbers
// Handles (-){INFINITY,NAN} cases.
// Will return min in cases of NAN, etc.
inline float fclamp(float value, float min, float max) {
return std::fmin(
std::fmax(value, min), max);
}
} }