ba2ae9616a
Allows removing some allocation churn in some locations by moving std::vectors into Path where applicable.
122 lines
3.2 KiB
C++
122 lines
3.2 KiB
C++
// Copyright 2015 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 <cstddef>
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#include <iomanip>
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#include <sstream>
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#include "common/logging/log.h"
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#include "common/string_util.h"
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#include "core/file_sys/archive_backend.h"
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#include "core/memory.h"
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namespace FileSys {
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Path::Path(LowPathType type, std::vector<u8> data) : type(type) {
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switch (type) {
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case LowPathType::Binary: {
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binary = std::move(data);
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break;
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}
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case LowPathType::Char: {
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string.resize(data.size() - 1); // Data is always null-terminated.
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std::memcpy(string.data(), data.data(), string.size());
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break;
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}
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case LowPathType::Wchar: {
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u16str.resize(data.size() / 2 - 1); // Data is always null-terminated.
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std::memcpy(u16str.data(), data.data(), u16str.size() * sizeof(char16_t));
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break;
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}
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default:
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break;
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}
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}
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std::string Path::DebugStr() const {
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switch (GetType()) {
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case LowPathType::Invalid:
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default:
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return "[Invalid]";
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case LowPathType::Empty:
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return "[Empty]";
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case LowPathType::Binary: {
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std::stringstream res;
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res << "[Binary: ";
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for (unsigned byte : binary)
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res << std::hex << std::setw(2) << std::setfill('0') << byte;
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res << ']';
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return res.str();
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}
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case LowPathType::Char:
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return "[Char: " + AsString() + ']';
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case LowPathType::Wchar:
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return "[Wchar: " + AsString() + ']';
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}
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}
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std::string Path::AsString() const {
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switch (GetType()) {
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case LowPathType::Char:
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return string;
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case LowPathType::Wchar:
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return Common::UTF16ToUTF8(u16str);
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case LowPathType::Empty:
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return {};
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case LowPathType::Invalid:
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case LowPathType::Binary:
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default:
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// TODO(yuriks): Add assert
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LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
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return {};
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}
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}
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std::u16string Path::AsU16Str() const {
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switch (GetType()) {
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case LowPathType::Char:
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return Common::UTF8ToUTF16(string);
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case LowPathType::Wchar:
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return u16str;
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case LowPathType::Empty:
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return {};
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case LowPathType::Invalid:
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case LowPathType::Binary:
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// TODO(yuriks): Add assert
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LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
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return {};
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}
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UNREACHABLE();
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}
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std::vector<u8> Path::AsBinary() const {
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switch (GetType()) {
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case LowPathType::Binary:
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return binary;
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case LowPathType::Char:
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return std::vector<u8>(string.begin(), string.end());
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case LowPathType::Wchar: {
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// use two u8 for each character of u16str
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std::vector<u8> to_return(u16str.size() * 2);
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for (std::size_t i = 0; i < u16str.size(); ++i) {
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u16 tmp_char = u16str.at(i);
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to_return[i * 2] = (tmp_char & 0xFF00) >> 8;
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to_return[i * 2 + 1] = (tmp_char & 0x00FF);
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}
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return to_return;
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}
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case LowPathType::Empty:
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return {};
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case LowPathType::Invalid:
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default:
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// TODO(yuriks): Add assert
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LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
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return {};
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}
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}
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} // namespace FileSys
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