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33 lines
803 B
C++
33 lines
803 B
C++
#include "conv.h"
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namespace xivps3::utils::conv
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{
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float half2float( const uint16_t i_value )
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{
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uint32_t t1;
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uint32_t t2;
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uint32_t t3;
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t1 = i_value & 0x7fff; // Non-sign bits
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t2 = i_value & 0x8000; // Sign bit
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t3 = i_value & 0x7c00; // Exponent
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t1 <<= 13; // Align mantissa on MSB
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t2 <<= 16; // Shift sign bit into position
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t1 += 0x38000000; // Adjust bias
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t1 = ( t3 == 0 ? 0 : t1 ); // Denormals-as-zero
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t1 |= t2; // Re-insert sign bit
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return *reinterpret_cast< float* >( &t1 );
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}
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float ubyte2float( const uint8_t i_value )
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{
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return i_value / 255.0f;
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}
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}
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