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sapphire/deps/datReader/conv.cpp
AriAvery 8dd40b1378 Cleanup, Improvements
- Refactored datReader and several other files for code cleanliness
- Enhanced runtime performance by optimizing select functions, utilizing std::string_view in place of std::string where appropriate
- Removed deprecated filesystem implementation
- Introduced Link Time Optimization (LTO) support for Linux builds
- Enabled parallel builds for GCC/Clang compilers
- Expanded and improved comments for various functions
- Replaced version check failure with warning, allowing for continued use with a cautionary message

Tested on MSVC/Windows and Clang/Ubuntu
2023-04-26 13:58:41 +02:00

36 lines
742 B
C++

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