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/VideoBackends/Vulkan/CommandBufferManager.cpp

@@ -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 "VideoBackends/Vulkan/CommandBufferManager.h"
 

Source/Core/VideoBackends/Vulkan/CommandBufferManager.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/VideoBackends/Vulkan/Constants.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/VideoBackends/Vulkan/ObjectCache.cpp

@@ -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 "VideoBackends/Vulkan/ObjectCache.h"
 

Source/Core/VideoBackends/Vulkan/ObjectCache.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/VideoBackends/Vulkan/ShaderCompiler.cpp

@@ -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 "VideoBackends/Vulkan/ShaderCompiler.h"
 #include "VideoBackends/Vulkan/VulkanContext.h"

Source/Core/VideoBackends/Vulkan/ShaderCompiler.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/VideoBackends/Vulkan/StagingBuffer.cpp

@@ -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 <algorithm>
 #include <cstring>

Source/Core/VideoBackends/Vulkan/StagingBuffer.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/VideoBackends/Vulkan/StateTracker.cpp

@@ -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 "VideoBackends/Vulkan/StateTracker.h"
 

Source/Core/VideoBackends/Vulkan/StateTracker.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/VideoBackends/Vulkan/VKBoundingBox.cpp

@@ -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 <vector>
 

Source/Core/VideoBackends/Vulkan/VKBoundingBox.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/VideoBackends/Vulkan/VKMain.cpp

@@ -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 <vector>
 

Source/Core/VideoBackends/Vulkan/VKPerfQuery.cpp

@@ -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 "VideoBackends/Vulkan/VKPerfQuery.h"
 

Source/Core/VideoBackends/Vulkan/VKPerfQuery.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/VideoBackends/Vulkan/VKPipeline.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 "VideoBackends/Vulkan/VKPipeline.h"
 

Source/Core/VideoBackends/Vulkan/VKPipeline.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/VideoBackends/Vulkan/VKRenderer.cpp

@@ -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 <algorithm>
 #include <cstddef>

Source/Core/VideoBackends/Vulkan/VKRenderer.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/VideoBackends/Vulkan/VKShader.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 "Common/Align.h"
 #include "Common/Assert.h"

Source/Core/VideoBackends/Vulkan/VKShader.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/VideoBackends/Vulkan/VKStreamBuffer.cpp

@@ -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 "VideoBackends/Vulkan/VKStreamBuffer.h"
 

Source/Core/VideoBackends/Vulkan/VKStreamBuffer.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/VideoBackends/Vulkan/VKSwapChain.cpp

@@ -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 "VideoBackends/Vulkan/VKSwapChain.h"
 

Source/Core/VideoBackends/Vulkan/VKSwapChain.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/VideoBackends/Vulkan/VKTexture.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 <algorithm>
 #include <cstddef>

Source/Core/VideoBackends/Vulkan/VKTexture.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/VideoBackends/Vulkan/VKVertexFormat.cpp

@@ -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 "VideoBackends/Vulkan/VKVertexFormat.h"
 

Source/Core/VideoBackends/Vulkan/VKVertexFormat.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/VideoBackends/Vulkan/VKVertexManager.cpp

@@ -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 "VideoBackends/Vulkan/VKVertexManager.h"
 

Source/Core/VideoBackends/Vulkan/VKVertexManager.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/VideoBackends/Vulkan/VideoBackend.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/VideoBackends/Vulkan/VulkanContext.cpp

@@ -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 <algorithm>
 #include <array>

Source/Core/VideoBackends/Vulkan/VulkanContext.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/VideoBackends/Vulkan/VulkanEntryPoints.inl

@@ -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
 
 // Expands the VULKAN_ENTRY_POINT macro for each function when this file is included.
 // Parameters: Function name, is required

Source/Core/VideoBackends/Vulkan/VulkanLoader.cpp

@@ -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 <atomic>
 #include <cstdarg>

Source/Core/VideoBackends/Vulkan/VulkanLoader.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