shadPS4/src/core/file_format/psf.cpp

63 lines
1.8 KiB
C++

// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "common/io_file.h"
#include "core/file_format/psf.h"
PSF::PSF() = default;
PSF::~PSF() = default;
bool PSF::open(const std::string& filepath, std::vector<u8> psfBuffer) {
if (!psfBuffer.empty()) {
psf.resize(psfBuffer.size());
psf = psfBuffer;
} else {
Common::FS::IOFile file(filepath, Common::FS::FileAccessMode::Read);
if (!file.IsOpen()) {
return false;
}
const u64 psfSize = file.GetSize();
psf.resize(psfSize);
file.Seek(0);
file.Read(psf);
file.Close();
}
// Parse file contents
PSFHeader header;
std::memcpy(&header, psf.data(), sizeof(header));
for (u32 i = 0; i < header.index_table_entries; i++) {
PSFEntry entry;
std::memcpy(&entry, &psf[sizeof(PSFHeader) + i * sizeof(PSFEntry)], sizeof(entry));
const std::string key = (char*)&psf[header.key_table_offset + entry.key_offset];
if (entry.param_fmt == PSFEntry::Fmt::TextRaw ||
entry.param_fmt == PSFEntry::Fmt::TextNormal) {
map_strings[key] = (char*)&psf[header.data_table_offset + entry.data_offset];
}
if (entry.param_fmt == PSFEntry::Fmt::Integer) {
u32 value;
std::memcpy(&value, &psf[header.data_table_offset + entry.data_offset], sizeof(value));
map_integers[key] = value;
}
}
return true;
}
std::string PSF::GetString(const std::string& key) {
if (map_strings.find(key) != map_strings.end()) {
return map_strings.at(key);
}
return "";
}
u32 PSF::GetInteger(const std::string& key) {
if (map_integers.find(key) != map_integers.end()) {
return map_integers.at(key);
}
return -1;
}