From ea4b7226a6af157be13798b2fcc7121f66d769d8 Mon Sep 17 00:00:00 2001
From: german77 <juangerman-13@hotmail.com>
Date: Sat, 15 May 2021 22:48:37 -0500
Subject: input_common: Add dual joycon support

---
 src/input_common/sdl/sdl_impl.h | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

(limited to 'src/input_common/sdl/sdl_impl.h')

diff --git a/src/input_common/sdl/sdl_impl.h b/src/input_common/sdl/sdl_impl.h
index 121e01913..b77afcbd8 100644
--- a/src/input_common/sdl/sdl_impl.h
+++ b/src/input_common/sdl/sdl_impl.h
@@ -9,6 +9,17 @@
 #include <mutex>
 #include <thread>
 #include <unordered_map>
+
+// Ignore -Wimplicit-fallthrough due to https://github.com/libsdl-org/SDL/issues/4307
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
+#endif
+#include <SDL.h>
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
+
 #include "common/common_types.h"
 #include "common/threadsafe_queue.h"
 #include "input_common/sdl/sdl.h"
@@ -18,6 +29,11 @@ using SDL_GameController = struct _SDL_GameController;
 using SDL_Joystick = struct _SDL_Joystick;
 using SDL_JoystickID = s32;
 
+using ButtonBindings =
+    std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerButton>, 17>;
+using ZButtonBindings =
+    std::array<std::pair<Settings::NativeButton::Values, SDL_GameControllerAxis>, 2>;
+
 namespace InputCommon::SDL {
 
 class SDLAnalogFactory;
@@ -66,8 +82,25 @@ private:
     /// Needs to be called before SDL_QuitSubSystem.
     void CloseJoysticks();
 
-    /// Returns a custom name for specific controllers because the default name is not correct
-    std::string GetControllerName(SDL_GameController* controller) const;
+    /// Returns the default button bindings list for generic controllers
+    ButtonBindings GetDefaultButtonBinding() const;
+
+    /// Returns the default button bindings list for nintendo controllers
+    ButtonBindings GetNintendoButtonBinding(const std::shared_ptr<SDLJoystick>& joystick) const;
+
+    /// Returns the button mappings from a single controller
+    ButtonMapping GetSingleControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+                                             const ButtonBindings& switch_to_sdl_button,
+                                             const ZButtonBindings& switch_to_sdl_axis) const;
+
+    /// Returns the button mappings from two different controllers
+    ButtonMapping GetDualControllerMapping(const std::shared_ptr<SDLJoystick>& joystick,
+                                           const std::shared_ptr<SDLJoystick>& joystick2,
+                                           const ButtonBindings& switch_to_sdl_button,
+                                           const ZButtonBindings& switch_to_sdl_axis) const;
+
+    /// Returns true if the button is on the left joycon
+    bool IsButtonOnLeftSide(Settings::NativeButton::Values button) const;
 
     // Set to true if SDL supports game controller subsystem
     bool has_gamecontroller = false;
-- 
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