suyu/src/core/file_sys/filesystem.cpp
bunnei 00851a5ef4 file_sys: Cleanup to better match Switch file system constructs.
file_sys: Add factory class for RomFS file system.
2018-01-21 15:39:26 -05:00

122 lines
3 KiB
C++

// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <cstddef>
#include <iomanip>
#include <sstream>
#include "common/logging/log.h"
#include "common/string_util.h"
#include "core/file_sys/filesystem.h"
#include "core/memory.h"
namespace FileSys {
Path::Path(LowPathType type, u32 size, u32 pointer) : type(type) {
switch (type) {
case Binary: {
binary.resize(size);
Memory::ReadBlock(pointer, binary.data(), binary.size());
break;
}
case Char: {
string.resize(size - 1); // Data is always null-terminated.
Memory::ReadBlock(pointer, &string[0], string.size());
break;
}
case Wchar: {
u16str.resize(size / 2 - 1); // Data is always null-terminated.
Memory::ReadBlock(pointer, &u16str[0], u16str.size() * sizeof(char16_t));
break;
}
default:
break;
}
}
std::string Path::DebugStr() const {
switch (GetType()) {
case Invalid:
default:
return "[Invalid]";
case Empty:
return "[Empty]";
case Binary: {
std::stringstream res;
res << "[Binary: ";
for (unsigned byte : binary)
res << std::hex << std::setw(2) << std::setfill('0') << byte;
res << ']';
return res.str();
}
case Char:
return "[Char: " + AsString() + ']';
case Wchar:
return "[Wchar: " + AsString() + ']';
}
}
std::string Path::AsString() const {
switch (GetType()) {
case Char:
return string;
case Wchar:
return Common::UTF16ToUTF8(u16str);
case Empty:
return {};
case Invalid:
case Binary:
default:
// TODO(yuriks): Add assert
LOG_ERROR(Service_FS, "LowPathType cannot be converted to string!");
return {};
}
}
std::u16string Path::AsU16Str() const {
switch (GetType()) {
case Char:
return Common::UTF8ToUTF16(string);
case Wchar:
return u16str;
case Empty:
return {};
case Invalid:
case Binary:
// TODO(yuriks): Add assert
LOG_ERROR(Service_FS, "LowPathType cannot be converted to u16string!");
return {};
}
UNREACHABLE();
}
std::vector<u8> Path::AsBinary() const {
switch (GetType()) {
case Binary:
return binary;
case Char:
return std::vector<u8>(string.begin(), string.end());
case Wchar: {
// use two u8 for each character of u16str
std::vector<u8> to_return(u16str.size() * 2);
for (size_t i = 0; i < u16str.size(); ++i) {
u16 tmp_char = u16str.at(i);
to_return[i * 2] = (tmp_char & 0xFF00) >> 8;
to_return[i * 2 + 1] = (tmp_char & 0x00FF);
}
return to_return;
}
case Empty:
return {};
case Invalid:
default:
// TODO(yuriks): Add assert
LOG_ERROR(Service_FS, "LowPathType cannot be converted to binary!");
return {};
}
}
} // namespace FileSys