From cf946312ca5aad399e39492bbb130bb1ff322cd1 Mon Sep 17 00:00:00 2001
From: Morph <39850852+Morph1984@users.noreply.github.com>
Date: Sun, 19 Jul 2020 23:52:06 -0400
Subject: [PATCH] main: Fallback to loader if no control nca is found with
 patch manager

In some rare instances, the patch manager is not able to find a control nca, fallback to the previous method of parsing a control nca through the loader if this occurs.
---
 src/yuzu/main.cpp | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/yuzu/main.cpp b/src/yuzu/main.cpp
index f711a337fc..e2b6462bba 100644
--- a/src/yuzu/main.cpp
+++ b/src/yuzu/main.cpp
@@ -1244,13 +1244,24 @@ void GMainWindow::OnGameListOpenFolder(u64 program_id, GameListOpenTarget target
     std::string path;
     QString open_target;
 
-    FileSys::PatchManager pm{program_id};
-    const auto control = pm.GetControlMetadata();
-    const auto v_file = Core::GetGameFileFromPath(vfs, game_path);
-    const auto loader = Loader::GetLoader(v_file);
+    const auto [user_save_size, device_save_size] = [this, &program_id, &game_path] {
+        FileSys::PatchManager pm{program_id};
+        const auto control = pm.GetControlMetadata().first;
+        if (control != nullptr) {
+            return std::make_pair(control->GetDefaultNormalSaveSize(),
+                                  control->GetDeviceSaveDataSize());
+        } else {
+            const auto file = Core::GetGameFileFromPath(vfs, game_path);
+            const auto loader = Loader::GetLoader(file);
 
-    const bool has_user_save{control.first->GetDefaultNormalSaveSize() > 0};
-    const bool has_device_save{control.first->GetDeviceSaveDataSize() > 0};
+            FileSys::NACP nacp{};
+            loader->ReadControlData(nacp);
+            return std::make_pair(nacp.GetDefaultNormalSaveSize(), nacp.GetDeviceSaveDataSize());
+        }
+    }();
+
+    const bool has_user_save{user_save_size > 0};
+    const bool has_device_save{device_save_size > 0};
 
     ASSERT_MSG(has_user_save != has_device_save, "Game uses both user and device savedata?");