Merge pull request #3665 from bunnei/device-save

FS: Improve emulation of device saves

3 files changed, 11 insertions, 3 deletions

diff --git a/src/core/file_sys/control_metadata.cpp b/src/core/file_sys/control_metadata.cpp
index f155a1341..63cd2eead 100644
--- a/src/core/file_sys/control_metadata.cpp
+++ b/src/core/file_sys/control_metadata.cpp
@@ -95,6 +95,10 @@ u32 NACP::GetSupportedLanguages() const {
     return raw.supported_languages;
 }
 
+u64 NACP::GetDeviceSaveDataSize() const {
+    return raw.device_save_data_size;
+}
+
 std::vector<u8> NACP::GetRawBytes() const {
     std::vector<u8> out(sizeof(RawNACP));
     std::memcpy(out.data(), &raw, sizeof(RawNACP));
diff --git a/src/core/file_sys/control_metadata.h b/src/core/file_sys/control_metadata.h
index 2d8c251ac..e37b2fadf 100644
--- a/src/core/file_sys/control_metadata.h
+++ b/src/core/file_sys/control_metadata.h
@@ -113,6 +113,7 @@ public:
     u32 GetSupportedLanguages() const;
     std::vector<u8> GetRawBytes() const;
     bool GetUserAccountSwitchLock() const;
+    u64 GetDeviceSaveDataSize() const;
 
 private:
     RawNACP raw{};
diff --git a/src/core/file_sys/savedata_factory.cpp b/src/core/file_sys/savedata_factory.cpp
index f3def93ab..adfd2c1a4 100644
--- a/src/core/file_sys/savedata_factory.cpp
+++ b/src/core/file_sys/savedata_factory.cpp
@@ -57,7 +57,8 @@ void PrintSaveDataDescriptorWarnings(SaveDataDescriptor meta) {
 bool ShouldSaveDataBeAutomaticallyCreated(SaveDataSpaceId space, const SaveDataDescriptor& desc) {
     return desc.type == SaveDataType::CacheStorage || desc.type == SaveDataType::TemporaryStorage ||
            (space == SaveDataSpaceId::NandUser && ///< Normal Save Data -- Current Title & User
-            desc.type == SaveDataType::SaveData && desc.title_id == 0 && desc.save_id == 0);
+            (desc.type == SaveDataType::SaveData || desc.type == SaveDataType::DeviceSaveData) &&
+            desc.title_id == 0 && desc.save_id == 0);
 }
 
 } // Anonymous namespace
@@ -139,8 +140,10 @@ std::string SaveDataFactory::GetFullPath(SaveDataSpaceId space, SaveDataType typ
                                          u128 user_id, u64 save_id) {
     // According to switchbrew, if a save is of type SaveData and the title id field is 0, it should
     // be interpreted as the title id of the current process.
-    if (type == SaveDataType::SaveData && title_id == 0) {
-        title_id = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+    if (type == SaveDataType::SaveData || type == SaveDataType::DeviceSaveData) {
+        if (title_id == 0) {
+            title_id = Core::System::GetInstance().CurrentProcess()->GetTitleID();
+        }
     }
 
     std::string out = GetSaveDataSpaceIdPath(space);