Merge pull request #3242 from Subv/extdata
HLE/FS: Always use 0x48000 as the high dword when opening the SharedExtData archive
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a709e6528e
@ -131,12 +131,22 @@ public:
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struct ExtSaveDataArchivePath {
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u32_le media_type;
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u32_le save_low;
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u32_le save_high;
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};
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static_assert(sizeof(ExtSaveDataArchivePath) == 12, "Incorrect path size");
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std::string GetExtSaveDataPath(const std::string& mount_point, const Path& path) {
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std::string GetExtSaveDataPath(const std::string& mount_point, const Path& path) {
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std::vector<u8> vec_data = path.AsBinary();
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std::vector<u8> vec_data = path.AsBinary();
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const u32* data = reinterpret_cast<const u32*>(vec_data.data());
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u32 save_low = data[1];
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ExtSaveDataArchivePath path_data;
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u32 save_high = data[2];
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std::memcpy(&path_data, vec_data.data(), sizeof(path_data));
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return Common::StringFromFormat("%s%08X/%08X/", mount_point.c_str(), save_high, save_low);
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return Common::StringFromFormat("%s%08X/%08X/", mount_point.c_str(), path_data.save_high,
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path_data.save_low);
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}
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}
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std::string GetExtDataContainerPath(const std::string& mount_point, bool shared) {
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std::string GetExtDataContainerPath(const std::string& mount_point, bool shared) {
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@ -148,22 +158,13 @@ std::string GetExtDataContainerPath(const std::string& mount_point, bool shared)
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}
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}
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Path ConstructExtDataBinaryPath(u32 media_type, u32 high, u32 low) {
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Path ConstructExtDataBinaryPath(u32 media_type, u32 high, u32 low) {
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std::vector<u8> binary_path;
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ExtSaveDataArchivePath path;
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binary_path.reserve(12);
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path.media_type = media_type;
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path.save_high = high;
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path.save_low = low;
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// Append each word byte by byte
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std::vector<u8> binary_path(sizeof(path));
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std::memcpy(binary_path.data(), &path, binary_path.size());
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// The first word is the media type
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for (unsigned i = 0; i < 4; ++i)
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binary_path.push_back((media_type >> (8 * i)) & 0xFF);
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// Next is the low word
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for (unsigned i = 0; i < 4; ++i)
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binary_path.push_back((low >> (8 * i)) & 0xFF);
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// Next is the high word
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for (unsigned i = 0; i < 4; ++i)
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binary_path.push_back((high >> (8 * i)) & 0xFF);
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return {binary_path};
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return {binary_path};
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}
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}
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@ -183,8 +184,27 @@ bool ArchiveFactory_ExtSaveData::Initialize() {
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return true;
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return true;
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}
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}
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Path ArchiveFactory_ExtSaveData::GetCorrectedPath(const Path& path) {
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if (!shared)
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return path;
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static constexpr u32 SharedExtDataHigh = 0x48000;
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ExtSaveDataArchivePath new_path;
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std::memcpy(&new_path, path.AsBinary().data(), sizeof(new_path));
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// The FS module overwrites the high value of the saveid when dealing with the SharedExtSaveData
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// archive.
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new_path.save_high = SharedExtDataHigh;
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std::vector<u8> binary_data(sizeof(new_path));
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std::memcpy(binary_data.data(), &new_path, binary_data.size());
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return {binary_data};
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}
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ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_ExtSaveData::Open(const Path& path) {
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ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_ExtSaveData::Open(const Path& path) {
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std::string fullpath = GetExtSaveDataPath(mount_point, path) + "user/";
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std::string fullpath = GetExtSaveDataPath(mount_point, GetCorrectedPath(path)) + "user/";
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if (!FileUtil::Exists(fullpath)) {
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if (!FileUtil::Exists(fullpath)) {
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// TODO(Subv): Verify the archive behavior of SharedExtSaveData compared to ExtSaveData.
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// TODO(Subv): Verify the archive behavior of SharedExtSaveData compared to ExtSaveData.
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// ExtSaveData seems to return FS_NotFound (120) when the archive doesn't exist.
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// ExtSaveData seems to return FS_NotFound (120) when the archive doesn't exist.
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@ -200,14 +220,16 @@ ResultVal<std::unique_ptr<ArchiveBackend>> ArchiveFactory_ExtSaveData::Open(cons
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ResultCode ArchiveFactory_ExtSaveData::Format(const Path& path,
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ResultCode ArchiveFactory_ExtSaveData::Format(const Path& path,
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const FileSys::ArchiveFormatInfo& format_info) {
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const FileSys::ArchiveFormatInfo& format_info) {
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auto corrected_path = GetCorrectedPath(path);
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// These folders are always created with the ExtSaveData
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// These folders are always created with the ExtSaveData
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std::string user_path = GetExtSaveDataPath(mount_point, path) + "user/";
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std::string user_path = GetExtSaveDataPath(mount_point, corrected_path) + "user/";
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std::string boss_path = GetExtSaveDataPath(mount_point, path) + "boss/";
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std::string boss_path = GetExtSaveDataPath(mount_point, corrected_path) + "boss/";
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FileUtil::CreateFullPath(user_path);
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FileUtil::CreateFullPath(user_path);
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FileUtil::CreateFullPath(boss_path);
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FileUtil::CreateFullPath(boss_path);
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// Write the format metadata
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// Write the format metadata
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std::string metadata_path = GetExtSaveDataPath(mount_point, path) + "metadata";
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std::string metadata_path = GetExtSaveDataPath(mount_point, corrected_path) + "metadata";
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FileUtil::IOFile file(metadata_path, "wb");
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FileUtil::IOFile file(metadata_path, "wb");
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if (!file.IsOpen()) {
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if (!file.IsOpen()) {
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@ -56,6 +56,9 @@ private:
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* See GetExtSaveDataPath for the code that extracts this data from an archive path.
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* See GetExtSaveDataPath for the code that extracts this data from an archive path.
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*/
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*/
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std::string mount_point;
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std::string mount_point;
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/// Returns a path with the correct SaveIdHigh value for Shared extdata paths.
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Path GetCorrectedPath(const Path& path);
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};
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};
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/**
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/**
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