diff options
Diffstat (limited to 'src/core/file_sys/ips_layer.cpp')
-rw-r--r-- | src/core/file_sys/ips_layer.cpp | 41 |
1 files changed, 14 insertions, 27 deletions
diff --git a/src/core/file_sys/ips_layer.cpp b/src/core/file_sys/ips_layer.cpp index 91dc69373..a6101f1c0 100644 --- a/src/core/file_sys/ips_layer.cpp +++ b/src/core/file_sys/ips_layer.cpp @@ -66,14 +66,12 @@ static bool IsEOF(IPSFileType type, const std::vector<u8>& data) { } VirtualFile PatchIPS(const VirtualFile& in, const VirtualFile& ips) { - if (in == nullptr || ips == nullptr) { + if (in == nullptr || ips == nullptr) return nullptr; - } const auto type = IdentifyMagic(ips->ReadBytes(0x5)); - if (type == IPSFileType::Error) { + if (type == IPSFileType::Error) return nullptr; - } auto in_data = in->ReadAllBytes(); @@ -86,46 +84,37 @@ VirtualFile PatchIPS(const VirtualFile& in, const VirtualFile& ips) { } u32 real_offset{}; - if (type == IPSFileType::IPS32) { - real_offset = static_cast<u32>(temp[0] << 24) | static_cast<u32>(temp[1] << 16) | - static_cast<u32>(temp[2] << 8) | temp[3]; - } else { - real_offset = - static_cast<u32>(temp[0] << 16) | static_cast<u32>(temp[1] << 8) | temp[2]; - } + if (type == IPSFileType::IPS32) + real_offset = (temp[0] << 24) | (temp[1] << 16) | (temp[2] << 8) | temp[3]; + else + real_offset = (temp[0] << 16) | (temp[1] << 8) | temp[2]; u16 data_size{}; - if (ips->ReadObject(&data_size, offset) != sizeof(u16)) { + if (ips->ReadObject(&data_size, offset) != sizeof(u16)) return nullptr; - } data_size = Common::swap16(data_size); offset += sizeof(u16); if (data_size == 0) { // RLE u16 rle_size{}; - if (ips->ReadObject(&rle_size, offset) != sizeof(u16)) { + if (ips->ReadObject(&rle_size, offset) != sizeof(u16)) return nullptr; - } rle_size = Common::swap16(rle_size); offset += sizeof(u16); const auto data = ips->ReadByte(offset++); - if (!data) { + if (!data) return nullptr; - } - if (real_offset + rle_size > in_data.size()) { + if (real_offset + rle_size > in_data.size()) rle_size = static_cast<u16>(in_data.size() - real_offset); - } std::memset(in_data.data() + real_offset, *data, rle_size); } else { // Standard Patch auto read = data_size; - if (real_offset + read > in_data.size()) { + if (real_offset + read > in_data.size()) read = static_cast<u16>(in_data.size() - real_offset); - } - if (ips->Read(in_data.data() + real_offset, read, offset) != data_size) { + if (ips->Read(in_data.data() + real_offset, read, offset) != data_size) return nullptr; - } offset += data_size; } } @@ -193,16 +182,14 @@ void IPSwitchCompiler::ParseFlag(const std::string& line) { void IPSwitchCompiler::Parse() { const auto bytes = patch_text->ReadAllBytes(); std::stringstream s; - s.write(reinterpret_cast<const char*>(bytes.data()), - static_cast<std::streamsize>(bytes.size())); + s.write(reinterpret_cast<const char*>(bytes.data()), bytes.size()); std::vector<std::string> lines; std::string stream_line; while (std::getline(s, stream_line)) { // Remove a trailing \r - if (!stream_line.empty() && stream_line.back() == '\r') { + if (!stream_line.empty() && stream_line.back() == '\r') stream_line.pop_back(); - } lines.push_back(std::move(stream_line)); } |