64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2014 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#ifndef POLY_BYTE_ORDER_H_
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#define POLY_BYTE_ORDER_H_
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#include <cstdint>
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#include <poly/config.h>
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#include <poly/platform.h>
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#if XE_LIKE_OSX
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#include <libkern/OSByteOrder.h>
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#endif // XE_LIKE_OSX
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namespace poly {
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#if XE_COMPILER_MSVC
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#define POLY_BYTE_SWAP_16 _byteswap_ushort
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#define POLY_BYTE_SWAP_32 _byteswap_ulong
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#define POLY_BYTE_SWAP_64 _byteswap_uint64
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#elif XE_LIKE_OSX
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#define POLY_BYTE_SWAP_16 OSSwapInt16
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#define POLY_BYTE_SWAP_32 OSSwapInt32
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#define POLY_BYTE_SWAP_64 OSSwapInt64
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#else
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#define POLY_BYTE_SWAP_16 __bswap_16
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#define POLY_BYTE_SWAP_32 __bswap_32
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#define POLY_BYTE_SWAP_64 __bswap_64
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#endif // XE_COMPILER_MSVC
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inline int8_t byte_swap(int8_t value) { return value; }
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inline uint8_t byte_swap(uint8_t value) { return value; }
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inline int16_t byte_swap(int16_t value) {
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return static_cast<int16_t>(POLY_BYTE_SWAP_16(static_cast<int16_t>(value)));
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}
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inline uint16_t byte_swap(uint16_t value) { return POLY_BYTE_SWAP_16(value); }
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inline int32_t byte_swap(int32_t value) {
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return static_cast<int32_t>(POLY_BYTE_SWAP_32(static_cast<int32_t>(value)));
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}
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inline uint32_t byte_swap(uint32_t value) { return POLY_BYTE_SWAP_32(value); }
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inline int64_t byte_swap(int64_t value) {
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return static_cast<int64_t>(POLY_BYTE_SWAP_64(static_cast<int64_t>(value)));
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}
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inline uint64_t byte_swap(uint64_t value) { return POLY_BYTE_SWAP_64(value); }
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inline float byte_swap(float value) {
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uint32_t temp = byte_swap(*reinterpret_cast<uint32_t *>(&value));
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return *reinterpret_cast<float *>(&temp);
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}
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inline double byte_swap(double value) {
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uint64_t temp = byte_swap(*reinterpret_cast<uint64_t *>(&value));
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return *reinterpret_cast<double *>(&temp);
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}
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} // namespace poly
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#endif // POLY_BYTE_ORDER_H_
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