treewide: convert GPLv2+ license info to SPDX tags

SPDX standardizes how source code conveys its copyright and licensing
information. See https://spdx.github.io/spdx-spec/1-rationale/ . SPDX
tags are adopted in many large projects, including things like the Linux
kernel.

Source/Core/InputCommon/ControllerInterface/Android/Android.cpp

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/Android/Android.h"
 #include "InputCommon/ControllerInterface/ControllerInterface.h"

Source/Core/InputCommon/ControllerInterface/Android/Android.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/ControllerInterface.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 

Source/Core/InputCommon/ControllerInterface/ControllerInterface.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/CoreDevice.cpp

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/CoreDevice.h"
 

Source/Core/InputCommon/ControllerInterface/CoreDevice.h

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DInput/DInput.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/DInput/DInput.h"
 

Source/Core/InputCommon/ControllerInterface/DInput/DInput.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DInput/DInput8.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <limits>

Source/Core/InputCommon/ControllerInterface/DInput/DInputJoystick.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h"
 

Source/Core/InputCommon/ControllerInterface/DInput/DInputKeyboardMouse.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DInput/NamedKeys.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 {DIK_A, "A"}, {DIK_B, "B"}, {DIK_C, "C"}, {DIK_D, "D"}, {DIK_E, "E"}, {DIK_F, "F"}, {DIK_G, "G"},
     {DIK_H, "H"}, {DIK_I, "I"}, {DIK_J, "J"}, {DIK_K, "K"}, {DIK_L, "L"}, {DIK_M, "M"},

Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.cpp

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <cwchar>
 #include <unordered_set>

Source/Core/InputCommon/ControllerInterface/DInput/XInputFilter.h

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DualShockUDPClient/DualShockUDPClient.cpp

@@ -1,6 +1,5 @@
 // Copyright 2019 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/DualShockUDPClient/DualShockUDPClient.h"
 

Source/Core/InputCommon/ControllerInterface/DualShockUDPClient/DualShockUDPClient.h

@@ -1,6 +1,5 @@
 // Copyright 2019 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/DualShockUDPClient/DualShockUDPProto.h

@@ -1,6 +1,5 @@
 // Copyright 2019 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.cpp

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h"
 

Source/Core/InputCommon/ControllerInterface/ForceFeedback/ForceFeedbackDevice.h

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputAdapter.h

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 /*
  * The OS X Force Feedback API is very similar to the DirectInput API,

Source/Core/InputCommon/ControllerInterface/ForceFeedback/OSX/DirectInputConstants.h

@@ -1,6 +1,5 @@
 // Copyright 2014 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/OSX/OSX.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/OSX/OSX.mm

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <thread>
 

Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/OSX/OSXJoystick.mm

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/OSX/OSXJoystick.h"
 

Source/Core/InputCommon/ControllerInterface/OSX/RunLoopStopper.h

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.cpp

@@ -1,6 +1,5 @@
 // Copyright 2015 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <array>

Source/Core/InputCommon/ControllerInterface/Pipes/Pipes.h

@@ -1,6 +1,5 @@
 // Copyright 2015 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.h

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Quartz/Quartz.mm

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/Quartz/Quartz.h"
 #include "InputCommon/ControllerInterface/ControllerInterface.h"

Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm

@@ -1,6 +1,5 @@
 // Copyright 2016 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.h"
 

Source/Core/InputCommon/ControllerInterface/SDL/SDL.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/SDL/SDL.h"
 

Source/Core/InputCommon/ControllerInterface/SDL/SDL.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.cpp

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <array>
 #include <sstream>

Source/Core/InputCommon/ControllerInterface/Touch/ButtonManager.h

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Touch/Touchscreen.cpp

@@ -1,6 +1,5 @@
 // Copyright 2013 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #ifdef ANDROID
 #include <jni/AndroidCommon/IDCache.h>

Source/Core/InputCommon/ControllerInterface/Touch/Touchscreen.h

@@ -1,6 +1,5 @@
 // Copyright 2008 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Wiimote/WiimoteController.cpp

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/Wiimote/WiimoteController.h"
 

Source/Core/InputCommon/ControllerInterface/Wiimote/WiimoteController.h

@@ -1,6 +1,5 @@
 // Copyright 2020 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/Win32/Win32.cpp

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/Win32/Win32.h"
 

Source/Core/InputCommon/ControllerInterface/Win32/Win32.h

@@ -1,6 +1,5 @@
 // Copyright 2017 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 

Source/Core/InputCommon/ControllerInterface/XInput/XInput.cpp

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "InputCommon/ControllerInterface/XInput/XInput.h"
 

Source/Core/InputCommon/ControllerInterface/XInput/XInput.h

@@ -1,6 +1,5 @@
 // Copyright 2010 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 // XInput suffers a similar issue as XAudio2. Since Win8, it is part of the OS.
 // However, unlike XAudio2 they have not made the API incompatible - so we just

Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp

@@ -1,6 +1,5 @@
 // Copyright 2013 Max Eliaser
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wregister"

Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.h

@@ -1,6 +1,5 @@
 // Copyright 2013 Max Eliaser
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 // See XInput2.cpp for extensive documentation.
 

Source/Core/InputCommon/ControllerInterface/evdev/evdev.cpp

@@ -1,6 +1,5 @@
 // Copyright 2015 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <algorithm>
 #include <cstring>

Source/Core/InputCommon/ControllerInterface/evdev/evdev.h

@@ -1,6 +1,5 @@
 // Copyright 2015 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once