PostProcessing: Fix abort on slow compile in big picture

src/core/fullscreen_ui.cpp

@@ -8513,6 +8513,11 @@ LoadingScreenProgressCallback::LoadingScreenProgressCallback()
 }
 
 LoadingScreenProgressCallback::~LoadingScreenProgressCallback()
+{
+  Close();
+}
+
+void LoadingScreenProgressCallback::Close()
 {
   // Did we activate?
   if (m_last_progress_percent < 0)
@@ -8531,6 +8536,8 @@ LoadingScreenProgressCallback::~LoadingScreenProgressCallback()
     // since this was pushing frames, we need to restore the context. do that by pushing a frame ourselves
     GPUThread::Internal::PresentFrameAndRestoreContext();
   }
+
+  m_last_progress_percent = -1;
 }
 
 void LoadingScreenProgressCallback::PushState()

src/core/fullscreen_ui.h

@@ -60,6 +60,8 @@ public:
 
   ALWAYS_INLINE void SetOpenDelay(float delay) { m_open_delay = delay; }
 
+  void Close();
+
   void PushState() override;
   void PopState() override;
 

src/util/postprocessing.cpp

@@ -432,11 +432,11 @@ void PostProcessing::Chain::LoadStages(std::unique_lock<std::mutex>& settings_lo
       return;
     }
 
+    progress.IncrementProgressValue();
+
     settings_lock.lock();
     shader->LoadOptions(si, GetStageConfigSection(m_section, i));
     m_stages.push_back(std::move(shader));
-
-    progress.IncrementProgressValue();
   }
 
   if (stage_count > 0)
@@ -455,6 +455,11 @@ void PostProcessing::Chain::LoadStages(std::unique_lock<std::mutex>& settings_lo
   m_needs_depth_buffer = m_enabled && m_wants_depth_buffer;
   if (m_wants_depth_buffer)
     DEV_LOG("Depth buffer is needed.");
+
+  // can't close/redraw with settings lock held because big picture
+  settings_lock.unlock();
+  progress.Close();
+  settings_lock.lock();
 }
 
 void PostProcessing::Chain::UpdateSettings(std::unique_lock<std::mutex>& settings_lock, const SettingsInterface& si)
@@ -531,6 +536,11 @@ void PostProcessing::Chain::UpdateSettings(std::unique_lock<std::mutex>& setting
   m_needs_depth_buffer = m_enabled && m_wants_depth_buffer;
   if (m_wants_depth_buffer)
     DEV_LOG("Depth buffer is needed.");
+
+  // can't close/redraw with settings lock held because big picture
+  settings_lock.unlock();
+  progress.Close();
+  settings_lock.lock();
 }
 
 void PostProcessing::Chain::Toggle()