diff --git a/core/base/Game.cpp b/core/base/Game.cpp
index d6ef244b..95d2d44c 100644
--- a/core/base/Game.cpp
+++ b/core/base/Game.cpp
@@ -55,9 +55,12 @@ namespace easy2d
 
 	void Game::Initialize(const Options& options)
 	{
-		Window::Instance().Initialize(options.title, options.width, options.height, options.icon, options.debug);
-		devices::Graphics::Instance().Initialize(Window::Instance().GetHandle());
-		devices::Audio::Instance().Initialize();
+		debug_mode_ = options.debug;
+
+		Window::Instance().Initialize(options.title, options.width, options.height, options.icon, debug_mode_);
+		devices::Graphics::Instance().Initialize(Window::Instance().GetHandle(), debug_mode_);
+		devices::Input::Instance().Initialize(debug_mode_);
+		devices::Audio::Instance().Initialize(debug_mode_);
 
 		// 若开启了调试模式，打开控制台
 		HWND console = ::GetConsoleWindow();
@@ -250,7 +253,8 @@ namespace easy2d
 
 	void Game::DrawScene()
 	{
-		devices::Graphics::Instance().BeginDraw(Window::Instance().GetHandle());
+		auto& graphics = devices::Graphics::Instance();
+		graphics.BeginDraw(Window::Instance().GetHandle());
 
 		if (transition_)
 		{
@@ -265,25 +269,20 @@ namespace easy2d
 		{
 			if (curr_scene_ && curr_scene_->GetRoot())
 			{
-				devices::Graphics::Instance().SetTransform(math::Matrix());
-				devices::Graphics::Instance().SetBrushOpacity(1.f);
+				graphics.SetTransform(math::Matrix());
+				graphics.SetBrushOpacity(1.f);
 				curr_scene_->GetRoot()->DrawBorder();
 			}
 			if (next_scene_ && next_scene_->GetRoot())
 			{
-				devices::Graphics::Instance().SetTransform(math::Matrix());
-				devices::Graphics::Instance().SetBrushOpacity(1.f);
+				graphics.SetTransform(math::Matrix());
+				graphics.SetBrushOpacity(1.f);
 				next_scene_->GetRoot()->DrawBorder();
 			}
 
-			devices::Graphics::Instance().DrawDebugInfo();
+			graphics.DrawDebugInfo();
 		}
 
-		devices::Graphics::Instance().EndDraw();
-	}
-
-	void Game::SetDebugMode(bool enabled)
-	{
-		debug_mode_ = enabled;
+		graphics.EndDraw();
 	}
 }
\ No newline at end of file
diff --git a/core/base/Game.h b/core/base/Game.h
index 270654e4..5741968d 100644
--- a/core/base/Game.h
+++ b/core/base/Game.h
@@ -75,11 +75,6 @@ namespace easy2d
 		// 结束
 		void Quit();
 
-		// 调试模式
-		void SetDebugMode(
-			bool enabled
-		);
-
 		// 切换场景
 		void EnterScene(
 			Scene * scene,						/* 场景 */
diff --git a/core/base/Input.cpp b/core/base/Input.cpp
index 9c850f24..e6666ce4 100644
--- a/core/base/Input.cpp
+++ b/core/base/Input.cpp
@@ -25,6 +25,7 @@ namespace easy2d
 	namespace devices
 	{
 		InputDevice::InputDevice()
+			: initialized(false)
 		{
 			ZeroMemory(keys_, sizeof(keys_));
 		}
@@ -33,6 +34,14 @@ namespace easy2d
 		{
 		}
 
+		void InputDevice::Initialize(bool debug)
+		{
+			if (initialized)
+				return;
+
+			initialized = true;
+		}
+
 		void InputDevice::Update(HWND hwnd, float scale_x, float scale_y)
 		{
 			::GetKeyboardState(keys_);
diff --git a/core/base/Input.h b/core/base/Input.h
index 08e7e420..b098b4d4 100644
--- a/core/base/Input.h
+++ b/core/base/Input.h
@@ -33,9 +33,7 @@ namespace easy2d
 			E2D_DISABLE_COPY(InputDevice);
 
 		public:
-			InputDevice();
-
-			~InputDevice();
+			void Initialize(bool debug);
 
 			// 检测键盘某按键是否正被按下
 			bool IsDown(
@@ -64,6 +62,12 @@ namespace easy2d
 			);
 
 		protected:
+			InputDevice();
+
+			~InputDevice();
+
+		protected:
+			bool initialized;
 			BYTE keys_[256];
 			Point mouse_pos_;
 		};
diff --git a/core/base/Singleton.hpp b/core/base/Singleton.hpp
index e74c8bca..13317800 100644
--- a/core/base/Singleton.hpp
+++ b/core/base/Singleton.hpp
@@ -29,8 +29,6 @@ namespace easy2d
 	public:
 		static inline T& Instance();
 
-		static inline void Destroy();
-
 	private:
 		ISingleton() {}
 
@@ -39,27 +37,16 @@ namespace easy2d
 		ISingleton(const ISingleton&) = delete;
 
 		ISingleton & operator= (const ISingleton &) = delete;
-
-		static std::unique_ptr<T> instance_;
 	};
 
 	template<typename T>
 	inline T & easy2d::ISingleton<T>::Instance()
 	{
+		static std::unique_ptr<T> instance_;
 		if (!instance_)
 			instance_.reset(new (std::nothrow) T);
 		return *instance_;
 	}
-
-	template<typename T>
-	inline void easy2d::ISingleton<T>::Destroy()
-	{
-		if (instance_)
-			instance_.reset();
-	}
-
-	template<typename T>
-	std::unique_ptr<T> easy2d::ISingleton<T>::instance_;
 }
 
 // Class that will implement the singleton mode,
diff --git a/core/base/audio.cpp b/core/base/audio.cpp
index eacdecbe..07d026b6 100644
--- a/core/base/audio.cpp
+++ b/core/base/audio.cpp
@@ -163,6 +163,7 @@ namespace easy2d
 		AudioDevice::AudioDevice()
 			: x_audio2_(nullptr)
 			, mastering_voice_(nullptr)
+			, initialized(false)
 		{
 			modules::Initialize();
 		}
@@ -184,8 +185,11 @@ namespace easy2d
 			modules::Destroy();
 		}
 
-		void AudioDevice::Initialize()
+		void AudioDevice::Initialize(bool debug)
 		{
+			if (initialized)
+				return;
+
 			ThrowIfFailed(
 				modules::MediaFoundation.MFStartup(MF_VERSION, MFSTARTUP_FULL)
 			);
@@ -197,6 +201,8 @@ namespace easy2d
 			ThrowIfFailed(
 				x_audio2_->CreateMasteringVoice(&mastering_voice_)
 			);
+
+			initialized = true;
 		}
 
 		HRESULT AudioDevice::CreateVoice(Voice* voice, WAVEFORMATEX * wfx)
diff --git a/core/base/audio.h b/core/base/audio.h
index 8fcddf41..e761e1c8 100644
--- a/core/base/audio.h
+++ b/core/base/audio.h
@@ -81,7 +81,7 @@ namespace easy2d
 			E2D_DISABLE_COPY(AudioDevice);
 
 		public:
-			void Initialize();
+			void Initialize(bool debug);
 
 			// 开启设备
 			void Open();
@@ -106,6 +106,7 @@ namespace easy2d
 			~AudioDevice();
 
 		protected:
+			bool initialized;
 			IXAudio2 * x_audio2_;
 			IXAudio2MasteringVoice*	mastering_voice_;
 			std::list<Voice*> voice_cache_;
diff --git a/core/base/render.cpp b/core/base/render.cpp
index 6cbb10f4..77fe26b9 100644
--- a/core/base/render.cpp
+++ b/core/base/render.cpp
@@ -25,7 +25,6 @@
 
 #pragma comment(lib, "d2d1.lib")
 #pragma comment(lib, "dwrite.lib")
-#pragma comment(lib, "windowscodecs.lib")
 
 namespace easy2d
 {
@@ -35,6 +34,7 @@ namespace easy2d
 			: fps_text_format_(nullptr)
 			, fps_text_layout_(nullptr)
 			, clear_color_(D2D1::ColorF(D2D1::ColorF::Black))
+			, initialized(false)
 		{
 			ZeroMemory(&d2d, sizeof(D2DResources));
 
@@ -63,15 +63,18 @@ namespace easy2d
 			modules::Destroy();
 		}
 
-		void GraphicsDevice::Initialize(HWND hwnd)
+		void GraphicsDevice::Initialize(HWND hwnd, bool debug)
 		{
-			if (d2d.factory)
+			if (initialized)
 				return;
 
+			D2D1_FACTORY_OPTIONS options{ debug ? D2D1_DEBUG_LEVEL_INFORMATION : D2D1_DEBUG_LEVEL_NONE };
 			ThrowIfFailed(
 				D2D1CreateFactory(
 					D2D1_FACTORY_TYPE_SINGLE_THREADED,
-					&d2d.factory
+					__uuidof(ID2D1Factory),
+					&options,
+					reinterpret_cast<void**>(&d2d.factory)
 				)
 			);
 
@@ -80,7 +83,7 @@ namespace easy2d
 					CLSID_WICImagingFactory,
 					nullptr,
 					CLSCTX_INPROC_SERVER,
-					IID_IWICImagingFactory,
+					__uuidof(IWICImagingFactory),
 					reinterpret_cast<void**>(&d2d.imaging_factory)
 				)
 			);
@@ -135,6 +138,8 @@ namespace easy2d
 			);
 
 			CreateDeviceResources(hwnd);
+
+			initialized = true;
 		}
 
 		void GraphicsDevice::BeginDraw(HWND hwnd)
diff --git a/core/base/render.h b/core/base/render.h
index 4ff7d778..9dcb8709 100644
--- a/core/base/render.h
+++ b/core/base/render.h
@@ -52,7 +52,7 @@ namespace easy2d
 			E2D_DISABLE_COPY(GraphicsDevice);
 
 		public:
-			void Initialize(HWND hwnd);
+			void Initialize(HWND hwnd, bool debug);
 
 			// 开始渲染
 			void BeginDraw(HWND hwnd);
@@ -168,6 +168,7 @@ namespace easy2d
 			~GraphicsDevice();
 
 		protected:
+			bool							initialized;
 			D2DResources					d2d;
 			D2D1_COLOR_F					clear_color_;
 			IDWriteTextFormat*				fps_text_format_;
diff --git a/core/base/window.cpp b/core/base/window.cpp
index 464a4cd2..468e6d43 100644
--- a/core/base/window.cpp
+++ b/core/base/window.cpp
@@ -42,21 +42,25 @@ namespace easy2d
 		LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM w_param, LPARAM l_param);
 	}
 
-	WindowInfo::WindowInfo()
+	WindowImpl::WindowImpl()
 		: handle(nullptr)
 		, scale_x(1.f)
 		, scale_y(1.f)
+		, initialized(false)
 	{
 	}
 
-	WindowInfo::~WindowInfo()
+	WindowImpl::~WindowImpl()
 	{
 		if (handle)
 			::DestroyWindow(handle);
 	}
 
-	void WindowInfo::Initialize(String title, int width, int height, LPCWSTR icon, bool debug)
+	void WindowImpl::Initialize(String title, int width, int height, LPCWSTR icon, bool debug)
 	{
+		if (initialized)
+			return;
+
 		HINSTANCE hinstance	= GetModuleHandle(nullptr);
 		WNDCLASSEX wcex		= { 0 };
 		wcex.cbSize			= sizeof(WNDCLASSEX);
@@ -114,9 +118,11 @@ namespace easy2d
 
 		// 禁用输入法
 		::ImmAssociateContext(handle, nullptr);
+
+		initialized = true;
 	}
 
-	String WindowInfo::GetTitle() const
+	String WindowImpl::GetTitle() const
 	{
 		if (handle)
 		{
@@ -127,13 +133,13 @@ namespace easy2d
 		return String();
 	}
 
-	void WindowInfo::SetTitle(const String& title)
+	void WindowImpl::SetTitle(const String& title)
 	{
 		if (handle)
 			::SetWindowText(handle, title.c_str());
 	}
 
-	Size WindowInfo::GetSize() const
+	Size WindowImpl::GetSize() const
 	{
 		if (handle)
 		{
@@ -147,17 +153,17 @@ namespace easy2d
 		return Size();
 	}
 
-	float WindowInfo::GetWidth() const
+	float WindowImpl::GetWidth() const
 	{
 		return GetSize().width;
 	}
 
-	float WindowInfo::GetHeight() const
+	float WindowImpl::GetHeight() const
 	{
 		return GetSize().height;
 	}
 
-	void WindowInfo::SetSize(int width, int height)
+	void WindowImpl::SetSize(int width, int height)
 	{
 		if (handle)
 		{
@@ -173,7 +179,7 @@ namespace easy2d
 		}
 	}
 
-	void WindowInfo::SetIcon(LPCWSTR icon_resource)
+	void WindowImpl::SetIcon(LPCWSTR icon_resource)
 	{
 		if (handle)
 		{
@@ -192,17 +198,17 @@ namespace easy2d
 		}
 	}
 
-	HWND WindowInfo::GetHandle() const
+	HWND WindowImpl::GetHandle() const
 	{
 		return handle;
 	}
 
-	float WindowInfo::GetContentScaleX() const
+	float WindowImpl::GetContentScaleX() const
 	{
 		return scale_x;
 	}
 
-	float WindowInfo::GetContentScaleY() const
+	float WindowImpl::GetContentScaleY() const
 	{
 		return scale_y;
 	}
diff --git a/core/base/window.h b/core/base/window.h
index 299bef20..5f9663a2 100644
--- a/core/base/window.h
+++ b/core/base/window.h
@@ -26,11 +26,11 @@ namespace easy2d
 {
 	
 
-	class WindowInfo
+	class WindowImpl
 	{
-		E2D_DECLARE_SINGLETON(WindowInfo);
+		E2D_DECLARE_SINGLETON(WindowImpl);
 
-		E2D_DISABLE_COPY(WindowInfo);
+		E2D_DISABLE_COPY(WindowImpl);
 
 	public:
 		void Initialize(
@@ -69,15 +69,16 @@ namespace easy2d
 		float GetContentScaleY() const;
 
 	protected:
-		WindowInfo();
+		WindowImpl();
 
-		~WindowInfo();
+		~WindowImpl();
 
 	private:
+		bool initialized;
 		HWND handle;
 		float scale_x;
 		float scale_y;
 	};
 
-	E2D_DECLARE_SINGLETON_TYPE(WindowInfo, Window);
+	E2D_DECLARE_SINGLETON_TYPE(WindowImpl, Window);
 }