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.

20 files changed, 20 insertions, 40 deletions

diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java
index 9a779e7f6b..0ac2463217 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java
index 1f77701e3f..5b3b232af4 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlay.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.overlay;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableButton.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableButton.java
index f9fde5c7e6..94c2633c5d 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableButton.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableButton.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.overlay;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableDpad.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableDpad.java
index 1af45c5ac3..ddc7ffd503 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableDpad.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableDpad.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2016 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.overlay;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableJoystick.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableJoystick.java
index 83ed506356..b4b933f991 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableJoystick.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/overlay/InputOverlayDrawableJoystick.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.overlay;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/NVidiaShieldWorkaroundView.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/NVidiaShieldWorkaroundView.java
index c419c8ef79..4b4b763c2b 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/NVidiaShieldWorkaroundView.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/ui/NVidiaShieldWorkaroundView.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.ui;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
index 9bb68e8b13..0dc5432c54 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/DirectoryInitialization.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2014 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.utils;
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/EGLHelper.java b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/EGLHelper.java
index 8f7262f465..b8e9dcc2cb 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/EGLHelper.java
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/EGLHelper.java
@@ -1,7 +1,6 @@
 /*
  * Copyright 2013 Dolphin Emulator Project
- * Licensed under GPLv2+
- * Refer to the license.txt file included.
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 package org.dolphinemu.dolphinemu.utils;
diff --git a/Source/Android/jni/AndroidCommon/AndroidCommon.cpp b/Source/Android/jni/AndroidCommon/AndroidCommon.cpp
index d582124102..3ae630f7c0 100644
--- a/Source/Android/jni/AndroidCommon/AndroidCommon.cpp
+++ b/Source/Android/jni/AndroidCommon/AndroidCommon.cpp
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "jni/AndroidCommon/AndroidCommon.h"
 
diff --git a/Source/Android/jni/AndroidCommon/AndroidCommon.h b/Source/Android/jni/AndroidCommon/AndroidCommon.h
index b5b0d0eaa9..5f1b4e1d51 100644
--- a/Source/Android/jni/AndroidCommon/AndroidCommon.h
+++ b/Source/Android/jni/AndroidCommon/AndroidCommon.h
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
diff --git a/Source/Android/jni/AndroidCommon/IDCache.cpp b/Source/Android/jni/AndroidCommon/IDCache.cpp
index 586ffd0845..7c261337b5 100644
--- a/Source/Android/jni/AndroidCommon/IDCache.cpp
+++ b/Source/Android/jni/AndroidCommon/IDCache.cpp
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "jni/AndroidCommon/IDCache.h"
 
diff --git a/Source/Android/jni/AndroidCommon/IDCache.h b/Source/Android/jni/AndroidCommon/IDCache.h
index b0e7a3d814..e67ef43243 100644
--- a/Source/Android/jni/AndroidCommon/IDCache.h
+++ b/Source/Android/jni/AndroidCommon/IDCache.h
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
diff --git a/Source/Android/jni/Config/NativeConfig.cpp b/Source/Android/jni/Config/NativeConfig.cpp
index 31fe9ade9a..bdeafc5f13 100644
--- a/Source/Android/jni/Config/NativeConfig.cpp
+++ b/Source/Android/jni/Config/NativeConfig.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 <memory>
 #include <string>
diff --git a/Source/Android/jni/Config/PostProcessing.cpp b/Source/Android/jni/Config/PostProcessing.cpp
index a96afca1a7..6ca1b62db7 100644
--- a/Source/Android/jni/Config/PostProcessing.cpp
+++ b/Source/Android/jni/Config/PostProcessing.cpp
@@ -1,6 +1,5 @@
 // Copyright 2021 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <string>
 #include <vector>
diff --git a/Source/Android/jni/GameList/GameFile.cpp b/Source/Android/jni/GameList/GameFile.cpp
index 18c893b7b3..5cc3d6c391 100644
--- a/Source/Android/jni/GameList/GameFile.cpp
+++ b/Source/Android/jni/GameList/GameFile.cpp
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include "jni/GameList/GameFile.h"
 
diff --git a/Source/Android/jni/GameList/GameFile.h b/Source/Android/jni/GameList/GameFile.h
index 4eac81a02a..bbf6ca099e 100644
--- a/Source/Android/jni/GameList/GameFile.h
+++ b/Source/Android/jni/GameList/GameFile.h
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #pragma once
 
diff --git a/Source/Android/jni/GameList/GameFileCache.cpp b/Source/Android/jni/GameList/GameFileCache.cpp
index 8428190f8a..06329a70ac 100644
--- a/Source/Android/jni/GameList/GameFileCache.cpp
+++ b/Source/Android/jni/GameList/GameFileCache.cpp
@@ -1,6 +1,5 @@
 // Copyright 2018 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <memory>
 #include <vector>
diff --git a/Source/Android/jni/IniFile.cpp b/Source/Android/jni/IniFile.cpp
index 97482ef3f3..56856feb9c 100644
--- a/Source/Android/jni/IniFile.cpp
+++ b/Source/Android/jni/IniFile.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 <jni.h>
 
diff --git a/Source/Android/jni/MainAndroid.cpp b/Source/Android/jni/MainAndroid.cpp
index 3e9ff48b67..2634cb97e8 100644
--- a/Source/Android/jni/MainAndroid.cpp
+++ b/Source/Android/jni/MainAndroid.cpp
@@ -1,6 +1,5 @@
 // Copyright 2003 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <EGL/egl.h>
 #include <UICommon/GameFile.h>
diff --git a/Source/Android/jni/WiiUtils.cpp b/Source/Android/jni/WiiUtils.cpp
index d00b27de94..f37ba0426b 100644
--- a/Source/Android/jni/WiiUtils.cpp
+++ b/Source/Android/jni/WiiUtils.cpp
@@ -1,6 +1,5 @@
 // Copyright 2021 Dolphin Emulator Project
-// Licensed under GPLv2+
-// Refer to the license.txt file included.
+// SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <string>