85 lines
2.1 KiB
C++
85 lines
2.1 KiB
C++
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#include "CrossLang.hpp"
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namespace Tesses::CrossLang
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{
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double BitConverter::ToDoubleBits(uint64_t v)
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{
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return *(double*)&v;
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}
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uint64_t BitConverter::ToUintBits(double v)
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{
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return *(uint64_t*)&v;
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}
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double BitConverter::ToDoubleBE(uint8_t& b)
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{
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return ToDoubleBits(ToUint64BE(b));
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}
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uint64_t BitConverter::ToUint64BE(uint8_t& b)
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{
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uint8_t* b2 = &b;
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uint64_t v = 0;
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v |= ((uint64_t)b2[0] << 56);
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v |= ((uint64_t)b2[1] << 48);
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v |= ((uint64_t)b2[2] << 40);
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v |= ((uint64_t)b2[3] << 32);
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v |= ((uint64_t)b2[4] << 24);
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v |= ((uint64_t)b2[5] << 16);
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v |= ((uint64_t)b2[6] << 8);
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v |= (uint64_t)b2[7];
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return v;
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}
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uint32_t BitConverter::ToUint32BE(uint8_t& b)
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{
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uint8_t* b2 = &b;
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uint32_t v = 0;
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v |= ((uint32_t)b2[0] << 24);
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v |= ((uint32_t)b2[1] << 16);
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v |= ((uint32_t)b2[2] << 8);
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v |= (uint32_t)b2[3];
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return v;
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}
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uint16_t BitConverter::ToUint16BE(uint8_t& b)
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{
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uint8_t* b2 = &b;
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uint16_t v = 0;
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v |= ((uint16_t)b2[0] << 8);
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v |= (uint16_t)b2[1];
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return v;
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}
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void BitConverter::FromDoubleBE(uint8_t& b, double v)
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{
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FromUint64BE(b,ToUintBits(v));
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}
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void BitConverter::FromUint64BE(uint8_t& b, uint64_t v)
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{
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uint8_t* b2 = &b;
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b2[0] = (uint8_t)(v >> 56);
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b2[1] = (uint8_t)(v >> 48);
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b2[2] = (uint8_t)(v >> 40);
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b2[3] = (uint8_t)(v >> 32);
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b2[4] = (uint8_t)(v >> 24);
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b2[5] = (uint8_t)(v >> 16);
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b2[6] = (uint8_t)(v >> 8);
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b2[7] = (uint8_t)v;
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}
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void BitConverter::FromUint32BE(uint8_t& b, uint32_t v)
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{
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uint8_t* b2 = &b;
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b2[0] = (uint8_t)(v >> 24);
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b2[1] = (uint8_t)(v >> 16);
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b2[2] = (uint8_t)(v >> 8);
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b2[3] = (uint8_t)v;
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}
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void BitConverter::FromUint16BE(uint8_t& b, uint16_t v)
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{
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uint8_t* b2 = &b;
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b2[0] = (uint8_t)(v >> 8);
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b2[1] = (uint8_t)v;
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}
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};
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