| // Copyright 2010 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_LAYERS_CONTENT_LAYER_H_ |
| #define CC_LAYERS_CONTENT_LAYER_H_ |
| |
| #include "base/basictypes.h" |
| #include "cc/base/cc_export.h" |
| #include "cc/layers/tiled_layer.h" |
| #include "cc/resources/layer_painter.h" |
| |
| class SkCanvas; |
| |
| namespace cc { |
| |
| class ContentLayerClient; |
| class ContentLayerUpdater; |
| |
| class CC_EXPORT ContentLayerPainter : public LayerPainter { |
| public: |
| static scoped_ptr<ContentLayerPainter> Create(ContentLayerClient* client); |
| |
| virtual void Paint(SkCanvas* canvas, |
| gfx::Rect content_rect, |
| gfx::RectF* opaque) OVERRIDE; |
| |
| private: |
| explicit ContentLayerPainter(ContentLayerClient* client); |
| |
| ContentLayerClient* client_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ContentLayerPainter); |
| }; |
| |
| // A layer that renders its contents into an SkCanvas. |
| class CC_EXPORT ContentLayer : public TiledLayer { |
| public: |
| static scoped_refptr<ContentLayer> Create(ContentLayerClient* client); |
| |
| void ClearClient() { client_ = NULL; } |
| |
| virtual bool DrawsContent() const OVERRIDE; |
| virtual void SetLayerTreeHost(LayerTreeHost* layer_tree_host) OVERRIDE; |
| virtual void SetTexturePriorities(const PriorityCalculator& priority_calc) |
| OVERRIDE; |
| virtual bool Update(ResourceUpdateQueue* queue, |
| const OcclusionTracker* occlusion) OVERRIDE; |
| virtual bool NeedMoreUpdates() OVERRIDE; |
| |
| virtual void SetContentsOpaque(bool contents_opaque) OVERRIDE; |
| |
| virtual bool SupportsLCDText() const OVERRIDE; |
| |
| virtual skia::RefPtr<SkPicture> GetPicture() const OVERRIDE; |
| |
| virtual void OnOutputSurfaceCreated() OVERRIDE; |
| |
| protected: |
| explicit ContentLayer(ContentLayerClient* client); |
| virtual ~ContentLayer(); |
| |
| // TiledLayer implementation. |
| virtual LayerUpdater* Updater() const OVERRIDE; |
| |
| private: |
| // TiledLayer implementation. |
| virtual void CreateUpdaterIfNeeded() OVERRIDE; |
| |
| void UpdateCanUseLCDText(); |
| |
| ContentLayerClient* client_; |
| scoped_refptr<ContentLayerUpdater> updater_; |
| bool can_use_lcd_text_last_frame_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ContentLayer); |
| }; |
| |
| } // namespace cc |
| #endif // CC_LAYERS_CONTENT_LAYER_H_ |