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nvidia-texture-tools/src/nvmath/Half.h

31 lines
614 B
C++

#pragma once
#ifndef NV_MATH_HALF_H
#define NV_MATH_HALF_H
#include "nvmath.h"
namespace nv {
uint32 half_to_float( uint16 h );
uint16 half_from_float( uint32 f );
void half_init_tables();
uint32 fast_half_to_float(uint16 h);
inline uint16 to_half(float c) {
union { float f; uint32 u; } f;
f.f = c;
return nv::half_from_float( f.u );
}
inline float to_float(uint16 c) {
union { float f; uint32 u; } f;
f.u = nv::fast_half_to_float( c );
return f.f;
}
} // nv namespace
#endif // NV_MATH_HALF_H