Update RenderTarget

src/kiwano/2d/Canvas.cpp

@@ -40,12 +40,12 @@ namespace kiwano
 
 	void Canvas::BeginDraw()
 	{
-		rt_.BeginDraw();
+		rt_->BeginDraw();
 	}
 
 	void Canvas::EndDraw()
 	{
-		rt_.EndDraw();
+		rt_->EndDraw();
 		cache_expired_ = true;
 	}
 
@@ -89,7 +89,7 @@ namespace kiwano
 
 	void Canvas::SetBrushOpacity(float opacity)
 	{
-		rt_.SetOpacity(opacity);
+		rt_->SetOpacity(opacity);
 	}
 
 	Color Canvas::GetStrokeColor() const
@@ -109,43 +109,43 @@ namespace kiwano
 
 	float Canvas::GetBrushOpacity() const
 	{
-		return rt_.GetOpacity();
+		return rt_->GetOpacity();
 	}
 
 	void Canvas::SetBrushTransform(Transform const& transform)
 	{
-		rt_.SetTransform(transform.ToMatrix());
+		rt_->SetTransform(transform.ToMatrix());
 	}
 
 	void Canvas::SetBrushTransform(Matrix3x2 const & transform)
 	{
-		rt_.SetTransform(transform);
+		rt_->SetTransform(transform);
 	}
 
 	void Canvas::PushLayerArea(LayerArea& area)
 	{
-		rt_.PushLayer(area);
+		rt_->PushLayer(area);
 	}
 
 	void Canvas::PopLayerArea()
 	{
-		rt_.PopLayer();
+		rt_->PopLayer();
 	}
 
 	void Canvas::PushClipRect(Rect const& clip_rect)
 	{
-		rt_.PushClipRect(clip_rect);
+		rt_->PushClipRect(clip_rect);
 	}
 
 	void Canvas::PopClipRect()
 	{
-		rt_.PopClipRect();
+		rt_->PopClipRect();
 	}
 
 	void Canvas::DrawLine(Point const& begin, Point const& end)
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawLine(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawLine(
 			begin,
 			end,
 			stroke_width_,
@@ -156,8 +156,8 @@ namespace kiwano
 
 	void Canvas::DrawCircle(Point const& center, float radius)
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawEllipse(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawEllipse(
 			center,
 			Vec2(radius, radius),
 			stroke_width_,
@@ -168,8 +168,8 @@ namespace kiwano
 
 	void Canvas::DrawEllipse(Point const& center, Vec2 const& radius)
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawEllipse(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawEllipse(
 			center,
 			radius,
 			stroke_width_,
@@ -180,8 +180,8 @@ namespace kiwano
 
 	void Canvas::DrawRect(Rect const& rect)
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawRectangle(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawRectangle(
 			rect,
 			stroke_width_,
 			stroke_style_
@@ -191,8 +191,8 @@ namespace kiwano
 
 	void Canvas::DrawRoundedRect(Rect const& rect, Vec2 const& radius)
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawRoundedRectangle(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawRoundedRectangle(
 			rect,
 			radius,
 			stroke_width_,
@@ -203,8 +203,8 @@ namespace kiwano
 
 	void Canvas::FillCircle(Point const& center, float radius)
 	{
-		rt_.SetDefaultBrushColor(fill_color_);
-		rt_.FillEllipse(
+		rt_->SetDefaultBrushColor(fill_color_);
+		rt_->FillEllipse(
 			center,
 			Vec2(radius, radius)
 		);
@@ -213,8 +213,8 @@ namespace kiwano
 
 	void Canvas::FillEllipse(Point const& center, Vec2 const& radius)
 	{
-		rt_.SetDefaultBrushColor(fill_color_);
-		rt_.FillEllipse(
+		rt_->SetDefaultBrushColor(fill_color_);
+		rt_->FillEllipse(
 			center,
 			radius
 		);
@@ -223,8 +223,8 @@ namespace kiwano
 
 	void Canvas::FillRect(Rect const& rect)
 	{
-		rt_.SetDefaultBrushColor(fill_color_);
-		rt_.FillRectangle(
+		rt_->SetDefaultBrushColor(fill_color_);
+		rt_->FillRectangle(
 			rect
 		);
 		cache_expired_ = true;
@@ -232,8 +232,8 @@ namespace kiwano
 
 	void Canvas::FillRoundedRect(Rect const& rect, Vec2 const& radius)
 	{
-		rt_.SetDefaultBrushColor(fill_color_);
-		rt_.FillRoundedRectangle(
+		rt_->SetDefaultBrushColor(fill_color_);
+		rt_->FillRoundedRectangle(
 			rect,
 			radius
 		);
@@ -244,7 +244,7 @@ namespace kiwano
 	{
 		if (texture)
 		{
-			rt_.DrawTexture(*texture, src_rect, dest_rect);
+			rt_->DrawTexture(*texture, src_rect, dest_rect);
 			cache_expired_ = true;
 		}
 	}
@@ -262,7 +262,7 @@ namespace kiwano
 
 	void Canvas::DrawTextLayout(TextLayout const& layout, Point const& point)
 	{
-		rt_.DrawTextLayout(layout, point);
+		rt_->DrawTextLayout(layout, point);
 	}
 
 	void Canvas::BeginPath(Point const& begin_pos)
@@ -297,8 +297,8 @@ namespace kiwano
 
 	void Canvas::StrokePath()
 	{
-		rt_.SetDefaultBrushColor(stroke_color_);
-		rt_.DrawGeometry(
+		rt_->SetDefaultBrushColor(stroke_color_);
+		rt_->DrawGeometry(
 			geo_sink_.GetGeometry(),
 			stroke_width_,
 			stroke_style_
@@ -308,8 +308,8 @@ namespace kiwano
 
 	void Canvas::FillPath()
 	{
-		rt_.SetDefaultBrushColor(fill_color_);
-		rt_.FillGeometry(
+		rt_->SetDefaultBrushColor(fill_color_);
+		rt_->FillGeometry(
 			geo_sink_.GetGeometry()
 		);
 		cache_expired_ = true;
@@ -317,13 +317,13 @@ namespace kiwano
 
 	void Canvas::Clear()
 	{
-		rt_.Clear();
+		rt_->Clear();
 		cache_expired_ = true;
 	}
 
 	void Canvas::Clear(Color const& clear_color)
 	{
-		rt_.Clear(clear_color);
+		rt_->Clear(clear_color);
 		cache_expired_ = true;
 	}
 
@@ -337,7 +337,7 @@ namespace kiwano
 	{
 		if (cache_expired_)
 		{
-			texture_cached_ = rt_.GetOutput();
+			texture_cached_ = rt_->GetOutput();
 			cache_expired_ = false;
 		}
 	}

src/kiwano/2d/Canvas.h

@@ -262,16 +262,16 @@ namespace kiwano
 		void UpdateCache() const;
 
 	private:
-		float				stroke_width_;
-		Color				fill_color_;
-		Color				stroke_color_;
-		TextStyle			text_style_;
-		StrokeStyle			stroke_style_;
-		GeometrySink		geo_sink_;
+		float					stroke_width_;
+		Color					fill_color_;
+		Color					stroke_color_;
+		TextStyle				text_style_;
+		StrokeStyle				stroke_style_;
+		GeometrySink			geo_sink_;
+		TextureRenderTargetPtr	rt_;
 
-		mutable bool		cache_expired_;
-		mutable TexturePtr	texture_cached_;
-		mutable TextureRenderTarget	rt_;
+		mutable bool			cache_expired_;
+		mutable TexturePtr		texture_cached_;
 	};
 
 	/** @} */

src/kiwano/2d/GifSprite.cpp

@@ -73,7 +73,7 @@ namespace kiwano
 
 			SetSize(Size{ static_cast<float>(gif_->GetWidthInPixels()), static_cast<float>(gif_->GetHeightInPixels()) });
 
-			if (!frame_rt_.IsValid())
+			if (!frame_rt_)
 			{
 				Renderer::instance().CreateTextureRenderTarget(frame_rt_);
 			}
@@ -129,9 +129,10 @@ namespace kiwano
 
 	void GifSprite::ComposeNextFrame()
 	{
-		KGE_ASSERT(gif_ && gif_->IsValid());
+		KGE_ASSERT(frame_rt_);
+		KGE_ASSERT(gif_);
 
-		if (frame_rt_.IsValid())
+		if (frame_rt_->IsValid())
 		{
 			do
 			{
@@ -170,6 +171,7 @@ namespace kiwano
 
 	void GifSprite::OverlayNextFrame()
 	{
+		KGE_ASSERT(frame_rt_);
 		KGE_ASSERT(gif_ && gif_->IsValid());
 
 		frame_ = gif_->GetFrame(next_index_);
@@ -179,9 +181,9 @@ namespace kiwano
 			SaveComposedFrame();
 		}
 
-		if (frame_rt_.IsValid())
+		if (frame_rt_->IsValid())
 		{
-			frame_rt_.BeginDraw();
+			frame_rt_->BeginDraw();
 
 			if (next_index_ == 0)
 			{
@@ -190,12 +192,12 @@ namespace kiwano
 
 			if (frame_.raw)
 			{
-				frame_rt_.DrawTexture(*frame_.raw, nullptr, &frame_.rect);
+				frame_rt_->DrawTexture(*frame_.raw, nullptr, &frame_.rect);
 			}
 
-			frame_rt_.EndDraw();
+			frame_rt_->EndDraw();
 
-			frame_to_render_ = frame_rt_.GetOutput();
+			frame_to_render_ = frame_rt_->GetOutput();
 			if (frame_to_render_)
 			{
 				next_index_ = (++next_index_) % gif_->GetFramesCount();
@@ -215,7 +217,8 @@ namespace kiwano
 
 	void GifSprite::SaveComposedFrame()
 	{
-		TexturePtr frame_to_be_saved = frame_rt_.GetOutput();
+		KGE_ASSERT(frame_rt_);
+		TexturePtr frame_to_be_saved = frame_rt_->GetOutput();
 
 		HRESULT hr = frame_to_be_saved ? S_OK : E_FAIL;
 
@@ -223,17 +226,11 @@ namespace kiwano
 		{
 			if (!saved_frame_)
 			{
-				auto size = frame_to_be_saved->GetSizeInPixels();
-				auto prop = D2D1::BitmapProperties(frame_to_be_saved->GetPixelFormat());
-
-				ComPtr<ID2D1Bitmap> saved_bitmap;
-				hr = frame_rt_.GetRenderTarget()->CreateBitmap(D2D1::SizeU(size.x, size.y), prop, &saved_bitmap);
-
-				if (SUCCEEDED(hr))
-				{
-					saved_frame_->SetBitmap(saved_bitmap);
-				}
+				saved_frame_ = new Texture;
+				frame_rt_->CreateTexture(*saved_frame_, frame_to_be_saved->GetSizeInPixels(), frame_to_be_saved->GetPixelFormat());
 			}
+
+			hr = saved_frame_ ? S_OK : E_FAIL;
 		}
 
 		if (SUCCEEDED(hr))
@@ -246,11 +243,12 @@ namespace kiwano
 
 	void GifSprite::RestoreSavedFrame()
 	{
+		KGE_ASSERT(frame_rt_);
 		HRESULT hr = saved_frame_ ? S_OK : E_FAIL;
 
 		if (SUCCEEDED(hr))
 		{
-			TexturePtr frame_to_copy_to = frame_rt_.GetOutput();
+			TexturePtr frame_to_copy_to = frame_rt_->GetOutput();
 
 			hr = frame_to_copy_to ? S_OK : E_FAIL;
 
@@ -265,13 +263,14 @@ namespace kiwano
 
 	void GifSprite::ClearCurrentFrameArea()
 	{
-		frame_rt_.BeginDraw();
+		KGE_ASSERT(frame_rt_);
+		frame_rt_->BeginDraw();
 
-		frame_rt_.PushClipRect(frame_.rect);
-		frame_rt_.Clear();
-		frame_rt_.PopClipRect();
+		frame_rt_->PushClipRect(frame_.rect);
+		frame_rt_->Clear();
+		frame_rt_->PopClipRect();
 
-		return frame_rt_.EndDraw();
+		return frame_rt_->EndDraw();
 	}
 
 }

src/kiwano/2d/GifSprite.h

@@ -151,18 +151,18 @@ namespace kiwano
 		void ClearCurrentFrameArea();
 
 	private:
-		bool				animating_;
-		int					total_loop_count_;
-		int					loop_count_;
-		size_t				next_index_;
-		Duration			frame_elapsed_;
-		LoopDoneCallback	loop_cb_;
-		DoneCallback		done_cb_;
-		GifImagePtr			gif_;
-		GifImage::Frame		frame_;
-		TexturePtr			saved_frame_;
-		TexturePtr			frame_to_render_;
-		TextureRenderTarget	frame_rt_;
+		bool					animating_;
+		int						total_loop_count_;
+		int						loop_count_;
+		size_t					next_index_;
+		Duration				frame_elapsed_;
+		LoopDoneCallback		loop_cb_;
+		DoneCallback			done_cb_;
+		GifImagePtr				gif_;
+		GifImage::Frame			frame_;
+		TexturePtr				saved_frame_;
+		TexturePtr				frame_to_render_;
+		TextureRenderTargetPtr	frame_rt_;
 	};
 
 	/** @} */

src/kiwano/2d/ShapeActor.cpp

@@ -49,7 +49,7 @@ namespace kiwano
 
 	Rect ShapeActor::GetBoundingBox() const
 	{
-		if (!geo_)
+		if (!geo_.IsValid())
 			return Rect{};
 
 		return geo_.GetBoundingBox(GetTransformMatrix());
@@ -83,7 +83,7 @@ namespace kiwano
 	void ShapeActor::SetGeometry(Geometry const& geometry)
 	{
 		geo_ = geometry;
-		if (geo_)
+		if (geo_.IsValid())
 		{
 			bounds_ = geo_.GetBoundingBox();
 			SetSize(bounds_.GetSize());
@@ -97,7 +97,7 @@ namespace kiwano
 
 	void ShapeActor::OnRender(RenderTarget* rt)
 	{
-		if (geo_ && CheckVisibilty(rt))
+		if (geo_.IsValid() && CheckVisibilty(rt))
 		{
 			PrepareRender(rt);
 
@@ -317,7 +317,7 @@ namespace kiwano
 		sink_.EndPath(closed);
 		Geometry geo = sink_.GetGeometry();
 
-		if (geo)
+		if (geo.IsValid())
 		{
 			SetGeometry(geo);
 		}

src/kiwano/2d/action/ActionWalk.cpp

@@ -60,7 +60,7 @@ namespace kiwano
 
 	void ActionWalk::Init(Actor* target)
 	{
-		if (!path_)
+		if (!path_.IsValid())
 		{
 			Done();
 			return;
@@ -121,7 +121,7 @@ namespace kiwano
 
 	void ActionWalk::ClearPath()
 	{
-		path_.SetGeometry(nullptr);
+		path_.Clear();
 	}
 
 }

src/kiwano/renderer/Brush.h

@@ -90,48 +90,32 @@ namespace kiwano
 		);
 	};
 
-	// ť­ąĘ
+	/**
+	* \~chinese
+	* @brief ť­Ë˘
+	*/
 	class KGE_API Brush
 	{
 	public:
 		Brush();
 
-		Brush(
-			Color const& color
-		);
+		Brush(Color const& color);
 
-		Brush(
-			SolidColorStyle const& style
-		);
+		Brush(SolidColorStyle const& style);
 
-		Brush(
-			LinearGradientStyle const& style
-		);
+		Brush(LinearGradientStyle const& style);
 
-		Brush(
-			RadialGradientStyle const& style
-		);
+		Brush(RadialGradientStyle const& style);
 
 		bool IsValid() const;
 
-		inline void SetColor(
-			Color const& color
-		)
-		{
-			SetStyle(SolidColorStyle{ color });
-		}
+		void SetColor(Color const& color);
 
-		void SetStyle(
-			SolidColorStyle const& style
-		);
+		void SetStyle(SolidColorStyle const& style);
 
-		void SetStyle(
-			LinearGradientStyle const& style
-		);
+		void SetStyle(LinearGradientStyle const& style);
 
-		void SetStyle(
-			RadialGradientStyle const& style
-		);
+		void SetStyle(RadialGradientStyle const& style);
 
 		float GetOpacity() const;
 
@@ -149,9 +133,7 @@ namespace kiwano
 		Type GetType() const { return type_; }
 
 	public:
-		Brush(
-			ComPtr<ID2D1Brush> brush
-		);
+		Brush(ComPtr<ID2D1Brush> brush);
 
 		void SetBrush(ComPtr<ID2D1Brush> const& brush);
 
@@ -163,4 +145,9 @@ namespace kiwano
 		ComPtr<ID2D1Brush> raw_;
 	};
 
+	inline void Brush::SetColor(Color const& color)
+	{
+		SetStyle(SolidColorStyle{ color });
+	}
+
 }

src/kiwano/renderer/Font.cpp

@@ -27,16 +27,6 @@ namespace kiwano
 	{
 	}
 
-	Font::Font(String const& font_file)
-	{
-		Load(font_file);
-	}
-
-	Font::Font(Resource const& font_resource)
-	{
-		Load(font_resource);
-	}
-
 	bool Font::Load(String const& font_file)
 	{
 		try

src/kiwano/renderer/Font.h

@@ -39,10 +39,6 @@ namespace kiwano
 	public:
 		Font();
 
-		Font(String const& font_file);
-
-		Font(Resource const& font_resource);
-
 		bool Load(String const& font_file);
 
 		bool Load(Resource const& font_resource);

src/kiwano/renderer/Geometry.cpp

@@ -33,11 +33,6 @@ namespace kiwano
 	{
 	}
 
-	Geometry::Geometry(ComPtr<ID2D1Geometry> geo)
-		: geo_(geo)
-	{
-	}
-
 	bool Geometry::IsValid() const
 	{
 		return geo_ != nullptr;
@@ -92,6 +87,11 @@ namespace kiwano
 		return false;
 	}
 
+	void Geometry::Clear()
+	{
+		geo_.reset();
+	}
+
 	void Geometry::CombineWith(GeometrySink& sink, Geometry input, CombineMode mode, Matrix3x2 const& input_matrix) const
 	{
 		if (geo_ && input.geo_)
@@ -277,14 +277,17 @@ namespace kiwano
 		{
 			EndPath();
 		}
-		return Geometry(path_geo_);
+
+		Geometry geo;
+		geo.SetGeometry(path_geo_);
+		return geo;
 	}
 
 	void GeometrySink::Init()
 	{
 		if (!path_geo_)
 		{
-			Renderer::instance().CreatePathGeometrySink(*this);
+			Renderer::instance().CreateGeometrySink(*this);
 		}
 	}
 

src/kiwano/renderer/Geometry.h

@@ -23,26 +23,20 @@
 
 namespace kiwano
 {
+	class RenderTarget;
+	class Renderer;
 	class GeometrySink;
 
 	// 섯부竟
 	class KGE_API Geometry
 	{
-	public:
-		// 几何体组合模式
-		enum class CombineMode
-		{
-			Union,		/* 并集 (A + B) */
-			Intersect,	/* 交集 (A + B) */
-			Xor,		/* 对称差集 ((A - B) + (B - A)) */
-			Exclude		/* 差集 (A - B) */
-		};
+		friend class RenderTarget;
+		friend class Renderer;
+		friend class GeometrySink;
 
 	public:
 		Geometry();
 
-		Geometry(ComPtr<ID2D1Geometry> geo);
-
 		bool IsValid() const;
 
 		// 삿혤棍학관鍋분
@@ -72,6 +66,19 @@ namespace kiwano
 			Vec2& tangent
 		) const;
 
+		// 헌뇜近榴
+		void Clear();
+
+	public:
+		// 섯부竟莉북친駕
+		enum class CombineMode
+		{
+			Union,		/* 깻섞 (A + B) */
+			Intersect,	/* 슥섞 (A + B) */
+			Xor,		/* 뚤냔뀌섞 ((A - B) + (B - A)) */
+			Exclude		/* 뀌섞 (A - B) */
+		};
+
 		// 莉북섯부竟
 		void CombineWith(
 			GeometrySink& sink,
@@ -87,6 +94,7 @@ namespace kiwano
 			Matrix3x2 const& input_matrix = Matrix3x2()
 		) const;
 
+	public:
 		// 눼쉔殮窟
 		static Geometry CreateLine(
 			Point const& begin,
@@ -116,13 +124,11 @@ namespace kiwano
 			Vec2 const& radius
 		);
 
-	public:
+	private:
 		inline ComPtr<ID2D1Geometry> GetGeometry() const		{ return geo_; }
 
 		inline void SetGeometry(ComPtr<ID2D1Geometry> geometry)	{ geo_ = geometry; }
 
-		inline operator bool() const							{ return IsValid(); }
-
 	private:
 		ComPtr<ID2D1Geometry> geo_;
 	};
@@ -132,8 +138,12 @@ namespace kiwano
 	class KGE_API GeometrySink
 		: protected Noncopyable
 	{
+		friend class Geometry;
+		friend class Renderer;
+
 	public:
 		GeometrySink();
+
 		~GeometrySink();
 
 		// 역迦警속쨌쓺
@@ -187,7 +197,7 @@ namespace kiwano
 		// 밑균직
 		void Close();
 
-	public:
+	private:
 		inline ComPtr<ID2D1PathGeometry> GetPathGeometry() const	{ return path_geo_; }
 
 		inline void SetPathGeometry(ComPtr<ID2D1PathGeometry> path)	{ path_geo_ = path; }

src/kiwano/renderer/GifImage.cpp

@@ -31,17 +31,6 @@ namespace kiwano
 	{
 	}
 
-	GifImage::GifImage(String const& file_path)
-	{
-		Load(file_path);
-	}
-
-	GifImage::GifImage(Resource const& res)
-		: GifImage()
-	{
-		Load(res);
-	}
-
 	bool GifImage::Load(String const& file_path)
 	{
 		Renderer::instance().CreateGifImage(*this, file_path);

src/kiwano/renderer/GifImage.h

@@ -24,19 +24,19 @@
 
 namespace kiwano
 {
+	class Renderer;
+
 	KGE_DECLARE_SMART_PTR(GifImage);
 
 	// GIF ͼÏñ
 	class KGE_API GifImage
 		: public ObjectBase
 	{
+		friend class Renderer;
+
 	public:
 		GifImage();
 
-		GifImage(String const& file_path);
-
-		GifImage(Resource const& res);
-
 		bool Load(String const& file_path);
 
 		bool Load(Resource const& res);
@@ -70,11 +70,11 @@ namespace kiwano
 
 		Frame GetFrame(uint32_t index);
 
+	private:
 		ComPtr<IWICBitmapDecoder> GetDecoder() const;
 
 		void SetDecoder(ComPtr<IWICBitmapDecoder> decoder);
 
-	private:
 		HRESULT GetGlobalMetadata();
 
 	private:

src/kiwano/renderer/LayerArea.h

@@ -23,9 +23,13 @@
 
 namespace kiwano
 {
+	class RenderTarget;
+
 	// 暠꿔
 	class KGE_API LayerArea
 	{
+		friend class RenderTarget;
+
 	public:
 		LayerArea();
 
@@ -53,7 +57,7 @@ namespace kiwano
 		// <20>零섯부촁꿔긴뻣
 		inline void SetMaskTransform(Matrix3x2 const& matrix)	{ mask_transform_ = matrix; }
 
-	public:
+	private:
 		inline ComPtr<ID2D1Layer> GetLayer() const				{ return layer_; }
 
 		inline void SetLayer(ComPtr<ID2D1Layer> layer)			{ layer_ = layer; }

src/kiwano/renderer/RenderTarget.cpp

@@ -397,6 +397,29 @@ namespace kiwano
 		ThrowIfFailed(hr);
 	}
 
+	void RenderTarget::CreateTexture(Texture& texture, math::Vec2T<uint32_t> size, D2D1_PIXEL_FORMAT format)
+	{
+		HRESULT hr = S_OK;
+
+		if (!render_target_)
+		{
+			hr = E_UNEXPECTED;
+		}
+
+		if (SUCCEEDED(hr))
+		{
+			ComPtr<ID2D1Bitmap> saved_bitmap;
+			hr = render_target_->CreateBitmap(D2D1::SizeU(size.x, size.y), D2D1::BitmapProperties(format), &saved_bitmap);
+
+			if (SUCCEEDED(hr))
+			{
+				texture.SetBitmap(saved_bitmap);
+			}
+		}
+
+		ThrowIfFailed(hr);
+	}
+
 	void RenderTarget::CreateLayer(LayerArea& layer)
 	{
 		HRESULT hr = S_OK;
@@ -714,26 +737,22 @@ namespace kiwano
 	{
 	}
 
-	TexturePtr TextureRenderTarget::GetOutput()
+	TexturePtr TextureRenderTarget::GetOutput() const
 	{
 		HRESULT hr = E_FAIL;
 		TexturePtr output;
 
-		if (GetRenderTarget())
+		if (bitmap_rt_)
 		{
-			ComPtr<ID2D1BitmapRenderTarget> bitmap_rt;
-			hr = GetRenderTarget()->QueryInterface<ID2D1BitmapRenderTarget>(&bitmap_rt);
+			ComPtr<ID2D1BitmapRenderTarget> bitmap_rt = bitmap_rt_;
+			ComPtr<ID2D1Bitmap> bitmap;
+
+			hr = bitmap_rt->GetBitmap(&bitmap);
 
 			if (SUCCEEDED(hr))
 			{
-				ComPtr<ID2D1Bitmap> bitmap;
-				hr = bitmap_rt->GetBitmap(&bitmap);
-
-				if (SUCCEEDED(hr))
-				{
-					output = new Texture;
-					output->SetBitmap(bitmap);
-				}
+				output = new Texture;
+				output->SetBitmap(bitmap);
 			}
 		}
 

src/kiwano/renderer/RenderTarget.h

@@ -20,6 +20,7 @@
 
 #pragma once
 #include <kiwano/core/time.h>
+#include <kiwano/core/ObjectBase.h>
 #include <kiwano/core/win32/ComPtr.hpp>
 #include <kiwano/renderer/Brush.h>
 #include <kiwano/renderer/Texture.h>
@@ -30,6 +31,11 @@
 
 namespace kiwano
 {
+	class Renderer;
+
+	KGE_DECLARE_SMART_PTR(RenderTarget);
+	KGE_DECLARE_SMART_PTR(TextureRenderTarget);
+
 	// 文字抗锯齿模式
 	enum class TextAntialiasMode
 	{
@@ -42,7 +48,7 @@ namespace kiwano
 
 	// 渲染目标
 	class KGE_API RenderTarget
-		: public Noncopyable
+		: public ObjectBase
 	{
 	public:
 		bool IsValid() const;
@@ -51,10 +57,6 @@ namespace kiwano
 
 		void EndDraw();
 
-		void CreateLayer(
-			LayerArea& layer
-		);
-
 		void DrawGeometry(
 			Geometry const& geometry,
 			float stroke_width,
@@ -123,6 +125,16 @@ namespace kiwano
 			Point const& offset = Point{}
 		);
 
+		void CreateTexture(
+			Texture& texture,
+			math::Vec2T<uint32_t> size,
+			D2D1_PIXEL_FORMAT format
+		);
+
+		void CreateLayer(
+			LayerArea& layer
+		);
+
 		void PushClipRect(
 			Rect const& clip_rect
 		);
@@ -203,19 +215,17 @@ namespace kiwano
 
 		inline Status const&				GetStatus() const						{ return status_; }
 
+	protected:
 		inline ComPtr<ID2D1RenderTarget>	GetRenderTarget() const					{ KGE_ASSERT(render_target_); return render_target_; }
 
 		inline ComPtr<ITextRenderer>		GetTextRenderer() const					{ KGE_ASSERT(text_renderer_); return text_renderer_; }
 
 		ComPtr<ID2D1StrokeStyle>			GetStrokeStyle(StrokeStyle style);
 
-	public:
+	protected:
 		RenderTarget();
 
-		HRESULT CreateDeviceResources(
-			ComPtr<ID2D1RenderTarget> rt,
-			ComPtr<ID2DDeviceResources> dev_res
-		);
+		HRESULT CreateDeviceResources(ComPtr<ID2D1RenderTarget> rt, ComPtr<ID2DDeviceResources> dev_res);
 
 		void DiscardDeviceResources();
 
@@ -239,9 +249,36 @@ namespace kiwano
 	class KGE_API TextureRenderTarget
 		: public RenderTarget
 	{
+		friend class Renderer;
+
 	public:
+		bool IsValid() const;
+
+		TexturePtr GetOutput() const;
+
+	private:
 		TextureRenderTarget();
 
-		TexturePtr GetOutput();
+		ComPtr<ID2D1BitmapRenderTarget> GetBitmapRenderTarget() const;
+
+		void SetBitmapRenderTarget(ComPtr<ID2D1BitmapRenderTarget> rt);
+
+	private:
+		ComPtr<ID2D1BitmapRenderTarget> bitmap_rt_;
 	};
+
+	inline bool TextureRenderTarget::IsValid() const
+	{
+		return !!bitmap_rt_;
+	}
+
+	inline ComPtr<ID2D1BitmapRenderTarget> TextureRenderTarget::GetBitmapRenderTarget() const
+	{
+		return bitmap_rt_;
+	}
+
+	inline void TextureRenderTarget::SetBitmapRenderTarget(ComPtr<ID2D1BitmapRenderTarget> rt)
+	{
+		bitmap_rt_ = rt;
+	}
 }

src/kiwano/renderer/Renderer.cpp

@@ -835,7 +835,7 @@ namespace kiwano
 		ThrowIfFailed(hr);
 	}
 
-	void Renderer::CreatePathGeometrySink(GeometrySink& sink)
+	void Renderer::CreateGeometrySink(GeometrySink& sink)
 	{
 		HRESULT hr = S_OK;
 		if (!d2d_res_)
@@ -857,7 +857,7 @@ namespace kiwano
 		ThrowIfFailed(hr);
 	}
 
-	void Renderer::CreateTextureRenderTarget(TextureRenderTarget& render_target)
+	void Renderer::CreateTextureRenderTarget(TextureRenderTargetPtr& render_target)
 	{
 		HRESULT hr = S_OK;
 		if (!d2d_res_)
@@ -865,15 +865,27 @@ namespace kiwano
 			hr = E_UNEXPECTED;
 		}
 
-		ComPtr<ID2D1BitmapRenderTarget> output;
+		TextureRenderTargetPtr output;
 		if (SUCCEEDED(hr))
 		{
-			hr = d2d_res_->GetDeviceContext()->CreateCompatibleRenderTarget(&output);
+			ComPtr<ID2D1BitmapRenderTarget> bitmap_rt;
+			hr = d2d_res_->GetDeviceContext()->CreateCompatibleRenderTarget(&bitmap_rt);
+
+			if (SUCCEEDED(hr))
+			{
+				output = new TextureRenderTarget;
+				hr = output->CreateDeviceResources(bitmap_rt, d2d_res_);
+			}
+
+			if (SUCCEEDED(hr))
+			{
+				output->SetBitmapRenderTarget(bitmap_rt);
+			}
 		}
 
 		if (SUCCEEDED(hr))
 		{
-			hr = render_target.CreateDeviceResources(output, d2d_res_);
+			render_target = output;
 		}
 
 		ThrowIfFailed(hr);

src/kiwano/renderer/Renderer.h

@@ -141,12 +141,12 @@ namespace kiwano
 			Vec2 const& radius
 		);
 
-		void CreatePathGeometrySink(
+		void CreateGeometrySink(
 			GeometrySink& sink
 		);
 
 		void CreateTextureRenderTarget(
-			TextureRenderTarget& render_target
+			TextureRenderTargetPtr& render_target
 		);
 
 		void CreateSolidBrush(

src/kiwano/renderer/TextLayout.h

@@ -24,10 +24,16 @@
 
 namespace kiwano
 {
+	class RenderTarget;
+	class Renderer;
+
 	/// \~chinese
 	/// @brief 文本布局
 	class KGE_API TextLayout
 	{
+		friend class RenderTarget;
+		friend class Renderer;
+
 	public:
 		/// \~chinese
 		/// @brief 构造空的文本布局
@@ -136,7 +142,7 @@ namespace kiwano
 		/// @param length 长度
 		void SetStrikethrough(bool enable, uint32_t start, uint32_t length);
 
-	public:
+	private:
 		ComPtr<IDWriteTextFormat> GetTextFormat() const;
 
 		void SetTextFormat(ComPtr<IDWriteTextFormat> format);

src/kiwano/renderer/Texture.cpp

@@ -31,24 +31,6 @@ namespace kiwano
 	{
 	}
 
-	Texture::Texture(String const& file_path)
-		: Texture()
-	{
-		Load(file_path);
-	}
-
-	Texture::Texture(Resource const& res)
-		: Texture()
-	{
-		Load(res);
-	}
-
-	Texture::Texture(ComPtr<ID2D1Bitmap> const & bitmap)
-		: Texture()
-	{
-		SetBitmap(bitmap);
-	}
-
 	Texture::~Texture()
 	{
 	}

src/kiwano/renderer/Texture.h

@@ -24,6 +24,10 @@
 
 namespace kiwano
 {
+	class RenderTarget;
+	class TextureRenderTarget;
+	class Renderer;
+
 	// 插值模式
 	// 插值模式指定了位图在缩放和旋转时像素颜色的计算方式
 	// Linear (双线性插值): 对周围四个像素进行两次线性插值计算, 在图像放大时可能会模糊（默认）
@@ -40,21 +44,13 @@ namespace kiwano
 	class KGE_API Texture
 		: public ObjectBase
 	{
+		friend class RenderTarget;
+		friend class TextureRenderTarget;
+		friend class Renderer;
+
 	public:
 		Texture();
 
-		explicit Texture(
-			String const& file_path
-		);
-
-		explicit Texture(
-			Resource const& res
-		);
-
-		explicit Texture(
-			ComPtr<ID2D1Bitmap> const& bitmap
-		);
-
 		virtual ~Texture();
 
 		// 加载本地文件
@@ -91,6 +87,9 @@ namespace kiwano
 		// 获取像素插值方式
 		InterpolationMode GetBitmapInterpolationMode() const;
 
+		// »ñÈ¡ÏñËظñʽ
+		D2D1_PIXEL_FORMAT GetPixelFormat() const;
+
 		// 拷贝位图内存
 		void CopyFrom(TexturePtr copy_from);
 
@@ -103,16 +102,13 @@ namespace kiwano
 		// 设置默认的像素插值方式
 		static void SetDefaultInterpolationMode(InterpolationMode mode);
 
-	public:
+	private:
 		// 获取源位图
 		ComPtr<ID2D1Bitmap> GetBitmap() const;
 
 		// 设置源位图
 		void SetBitmap(ComPtr<ID2D1Bitmap> bitmap);
 
-		// »ñÈ¡ÏñËظñʽ
-		D2D1_PIXEL_FORMAT GetPixelFormat() const;
-
 	private:
 		ComPtr<ID2D1Bitmap>	bitmap_;
 		InterpolationMode	interpolation_mode_;