D3D12: Initial commit for D3D12 backend implementation.

Source/Core/VideoBackends/D3D12/PerfQuery.cpp

@@ -0,0 +1,69 @@
+// Copyright 2012 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "Common/CommonFuncs.h"
+#include "Common/CommonTypes.h"
+#include "Common/Logging/Log.h"
+#include "VideoBackends/D3D12/D3DBase.h"
+#include "VideoBackends/D3D12/PerfQuery.h"
+#include "VideoCommon/RenderBase.h"
+
+//D3D12TODO: Implement PerfQuery class.
+
+namespace DX12
+{
+
+PerfQuery::PerfQuery()
+{
+	//D3D12TODO: Add implementation
+}
+
+PerfQuery::~PerfQuery()
+{
+	//D3D12TODO: Add implementation
+}
+
+void PerfQuery::EnableQuery(PerfQueryGroup type)
+{
+	//D3D12TODO: Add implementation
+}
+
+void PerfQuery::DisableQuery(PerfQueryGroup type)
+{
+	//D3D12TODO: Add implementation
+}
+
+void PerfQuery::ResetQuery()
+{
+	//D3D12TODO: Add implementation
+}
+
+u32 PerfQuery::GetQueryResult(PerfQueryType type)
+{
+	//D3D12TODO: Add implementation
+	return 0;
+}
+
+void PerfQuery::FlushOne()
+{
+	//D3D12TODO: Add implementation
+}
+
+void PerfQuery::FlushResults()
+{
+	//D3D12TODO: Add implementation
+}
+
+void PerfQuery::WeakFlush()
+{
+	//D3D12TODO: Add implementation
+}
+
+bool PerfQuery::IsFlushed() const
+{
+	//D3D12TODO: Add implementation
+	return true;
+}
+
+} // namespace