From 5f3be68028d9b7313b49c9d7bfaa85e3c633f432 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Sun, 16 Feb 2020 00:14:44 +0900
Subject: [PATCH] HostInterface: Notify host when controller types change

---
 src/core/host_interface.cpp                | 9 +++++++++
 src/core/host_interface.h                  | 1 +
 src/duckstation-qt/qthostinterface.cpp     | 7 +++++++
 src/duckstation-qt/qthostinterface.h       | 1 +
 src/duckstation-sdl/sdl_host_interface.cpp | 8 ++++++++
 src/duckstation-sdl/sdl_host_interface.h   | 1 +
 6 files changed, 27 insertions(+)

diff --git a/src/core/host_interface.cpp b/src/core/host_interface.cpp
index a90d18ca9..7d593a0ad 100644
--- a/src/core/host_interface.cpp
+++ b/src/core/host_interface.cpp
@@ -521,6 +521,8 @@ void HostInterface::OnSystemPerformanceCountersUpdated() {}
 
 void HostInterface::OnRunningGameChanged() {}
 
+void HostInterface::OnControllerTypeChanged(u32 slot) {}
+
 void HostInterface::SetUserDirectory()
 {
   const std::string program_path = FileSystem::GetProgramPath();
@@ -726,6 +728,7 @@ void HostInterface::UpdateSettings(const std::function<void()>& apply_callback)
   const bool old_audio_sync_enabled = m_settings.audio_sync_enabled;
   const bool old_speed_limiter_enabled = m_settings.speed_limiter_enabled;
   const bool old_display_linear_filtering = m_settings.display_linear_filtering;
+  std::array<ControllerType, NUM_CONTROLLER_AND_CARD_PORTS> old_controller_types = m_settings.controller_types;
 
   apply_callback();
 
@@ -773,6 +776,12 @@ void HostInterface::UpdateSettings(const std::function<void()>& apply_callback)
     }
   }
 
+  for (u32 i = 0; i < NUM_CONTROLLER_AND_CARD_PORTS; i++)
+  {
+    if (m_settings.controller_types[i] != old_controller_types[i])
+      OnControllerTypeChanged(i);
+  }
+
   if (m_display && m_settings.display_linear_filtering != old_display_linear_filtering)
     m_display->SetDisplayLinearFiltering(m_settings.display_linear_filtering);
 }
diff --git a/src/core/host_interface.h b/src/core/host_interface.h
index 668b95504..217cd9b8e 100644
--- a/src/core/host_interface.h
+++ b/src/core/host_interface.h
@@ -104,6 +104,7 @@ protected:
   virtual void OnSystemDestroyed();
   virtual void OnSystemPerformanceCountersUpdated();
   virtual void OnRunningGameChanged();
+  virtual void OnControllerTypeChanged(u32 slot);
 
   void SetUserDirectory();
 
diff --git a/src/duckstation-qt/qthostinterface.cpp b/src/duckstation-qt/qthostinterface.cpp
index 5883a681f..9e2facf97 100644
--- a/src/duckstation-qt/qthostinterface.cpp
+++ b/src/duckstation-qt/qthostinterface.cpp
@@ -314,6 +314,13 @@ void QtHostInterface::OnRunningGameChanged()
   }
 }
 
+void QtHostInterface::OnControllerTypeChanged(u32 slot)
+{
+  HostInterface::OnControllerTypeChanged(slot);
+
+  updateInputMap();
+}
+
 void QtHostInterface::updateInputMap()
 {
   if (!isOnWorkerThread())
diff --git a/src/duckstation-qt/qthostinterface.h b/src/duckstation-qt/qthostinterface.h
index aa672e9eb..2b20e8352 100644
--- a/src/duckstation-qt/qthostinterface.h
+++ b/src/duckstation-qt/qthostinterface.h
@@ -102,6 +102,7 @@ protected:
   void OnSystemDestroyed() override;
   void OnSystemPerformanceCountersUpdated() override;
   void OnRunningGameChanged() override;
+  void OnControllerTypeChanged(u32 slot) override;
 
 private:
   using InputButtonHandler = std::function<void(bool)>;
diff --git a/src/duckstation-sdl/sdl_host_interface.cpp b/src/duckstation-sdl/sdl_host_interface.cpp
index d7795efaf..8e494757e 100644
--- a/src/duckstation-sdl/sdl_host_interface.cpp
+++ b/src/duckstation-sdl/sdl_host_interface.cpp
@@ -189,6 +189,14 @@ void SDLHostInterface::OnSystemDestroyed()
   HostInterface::OnSystemDestroyed();
 }
 
+void SDLHostInterface::OnControllerTypeChanged(u32 slot)
+{
+  HostInterface::OnControllerTypeChanged(slot);
+
+  UpdateKeyboardControllerMapping();
+  UpdateControllerControllerMapping();
+}
+
 void SDLHostInterface::SaveSettings()
 {
   SDLSettingsInterface si(GetSettingsFileName().c_str());
diff --git a/src/duckstation-sdl/sdl_host_interface.h b/src/duckstation-sdl/sdl_host_interface.h
index 14f55c114..80e163f1c 100644
--- a/src/duckstation-sdl/sdl_host_interface.h
+++ b/src/duckstation-sdl/sdl_host_interface.h
@@ -37,6 +37,7 @@ protected:
   void OnSystemCreated() override;
   void OnSystemPaused(bool paused) override;
   void OnSystemDestroyed();
+  void OnControllerTypeChanged(u32 slot) override;
 
 private:
   enum class KeyboardControllerAction