mirror of https://github.com/zeldaret/botw.git
26 lines
589 B
C++
26 lines
589 B
C++
#pragma once
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#include <basis/seadTypes.h>
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#include <string_view>
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namespace ksys::util {
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template <typename CharType = u8>
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constexpr u32 calcCrc32(const CharType* data, std::size_t size) {
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u32 crc = 0xFFFFFFFF;
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for (std::size_t i = 0; i < size; ++i) {
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crc ^= u8(data[i]);
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for (std::size_t j = 0; j < 8; ++j) {
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u32 mask = -(crc & 1);
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crc = (crc >> 1) ^ (0xEDB88320 & mask);
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}
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}
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return ~crc;
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}
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constexpr u32 calcCrc32(std::string_view str) {
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return calcCrc32<char>(str.data(), str.size());
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}
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} // namespace ksys::util
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