| // Copyright 2011 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_RESOURCES_SKPICTURE_CONTENT_LAYER_UPDATER_H_ |
| #define CC_RESOURCES_SKPICTURE_CONTENT_LAYER_UPDATER_H_ |
| |
| #include "cc/resources/content_layer_updater.h" |
| #include "third_party/skia/include/core/SkPicture.h" |
| |
| class SkCanvas; |
| |
| namespace cc { |
| |
| class LayerPainter; |
| |
| // This class records the content_rect into an SkPicture. Subclasses, provide |
| // different implementations of tile updating based on this recorded picture. |
| // The BitmapSkPictureContentLayerUpdater and |
| // FrameBufferSkPictureContentLayerUpdater are two examples of such |
| // implementations. |
| class SkPictureContentLayerUpdater : public ContentLayerUpdater { |
| protected: |
| SkPictureContentLayerUpdater( |
| scoped_ptr<LayerPainter> painter, |
| RenderingStatsInstrumentation* stats_instrumentation, |
| int layer_id); |
| virtual ~SkPictureContentLayerUpdater(); |
| |
| virtual void PrepareToUpdate(gfx::Rect content_rect, |
| gfx::Size tile_size, |
| float contents_width_scale, |
| float contents_height_scale, |
| gfx::Rect* resulting_opaque_rect) OVERRIDE; |
| void DrawPicture(SkCanvas* canvas); |
| |
| private: |
| // Recording canvas. |
| SkPicture picture_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SkPictureContentLayerUpdater); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_RESOURCES_SKPICTURE_CONTENT_LAYER_UPDATER_H_ |