Remove unnecessary Src/ folders

Source/Core/VideoBackends/D3D/GfxState.h

@@ -0,0 +1,67 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <stack>
+
+struct ID3D11BlendState;
+struct ID3D11DepthStencilState;
+struct ID3D11RasterizerState;
+
+namespace DX11
+{
+
+namespace D3D
+{
+
+template<typename T> class AutoState
+{
+public:
+	AutoState(const T* object);
+	AutoState(const AutoState<T> &source);
+	~AutoState();
+
+	const inline T* GetPtr() const { return state; }
+
+private:
+	const T* state;
+};
+
+typedef AutoState<ID3D11BlendState> AutoBlendState;
+typedef AutoState<ID3D11DepthStencilState> AutoDepthStencilState;
+typedef AutoState<ID3D11RasterizerState> AutoRasterizerState;
+
+class StateManager
+{
+public:
+	StateManager();
+
+	// call any of these to change the affected states
+	void PushBlendState(const ID3D11BlendState* state);
+	void PushDepthState(const ID3D11DepthStencilState* state);
+	void PushRasterizerState(const ID3D11RasterizerState* state);
+
+	// call these after drawing
+	void PopBlendState();
+	void PopDepthState();
+	void PopRasterizerState();
+
+	// call this before any drawing operation if states could have changed meanwhile
+	void Apply();
+
+private:
+	std::stack<AutoBlendState> blendstates;
+	std::stack<AutoDepthStencilState> depthstates;
+	std::stack<AutoRasterizerState> raststates;
+	ID3D11BlendState* cur_blendstate;
+	ID3D11DepthStencilState* cur_depthstate;
+	ID3D11RasterizerState* cur_raststate;
+};
+
+extern StateManager* stateman;
+
+}  // namespace
+
+}  // namespace DX11