common: Move hex string processing to separate file
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@ -40,6 +40,8 @@ add_library(common STATIC
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file_util.cpp
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file_util.h
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hash.h
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hex_util.cpp
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hex_util.h
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logging/backend.cpp
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logging/backend.h
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logging/filter.cpp
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@ -0,0 +1,27 @@
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// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include "common/hex_util.h"
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u8 ToHexNibble(char c1) {
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if (c1 >= 65 && c1 <= 70)
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return c1 - 55;
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if (c1 >= 97 && c1 <= 102)
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return c1 - 87;
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if (c1 >= 48 && c1 <= 57)
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return c1 - 48;
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throw std::logic_error("Invalid hex digit");
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}
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std::array<u8, 16> operator""_array16(const char* str, size_t len) {
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if (len != 32)
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throw std::logic_error("Not of correct size.");
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return HexStringToArray<16>(str);
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}
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std::array<u8, 32> operator""_array32(const char* str, size_t len) {
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if (len != 64)
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throw std::logic_error("Not of correct size.");
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return HexStringToArray<32>(str);
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}
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@ -0,0 +1,35 @@
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// Copyright 2013 Dolphin Emulator Project / 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <fmt/format.h>
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#include "common/common_types.h"
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u8 ToHexNibble(char c1);
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template <size_t Size, bool le = false>
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std::array<u8, Size> HexStringToArray(std::string_view str) {
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std::array<u8, Size> out{};
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if constexpr (le) {
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for (size_t i = 2 * Size - 2; i <= 2 * Size; i -= 2)
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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} else {
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for (size_t i = 0; i < 2 * Size; i += 2)
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out[i / 2] = (ToHexNibble(str[i]) << 4) | ToHexNibble(str[i + 1]);
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}
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return out;
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}
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template <size_t Size>
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std::string HexArrayToString(std::array<u8, Size> array, bool upper = true) {
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std::string out;
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for (u8 c : array)
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out += fmt::format(upper ? "{:02X}" : "{:02x}", c);
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return out;
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}
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std::array<u8, 0x10> operator"" _array16(const char* str, size_t len);
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std::array<u8, 0x20> operator"" _array32(const char* str, size_t len);
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