Index: cc/skpicture_canvas_layer_texture_updater.h |
diff --git a/cc/skpicture_canvas_layer_texture_updater.h b/cc/skpicture_canvas_layer_texture_updater.h |
index 638cbb270ce9b24689d5095baf174ade4f4d1a13..fd9bb5fccd170383de814df2c0b61b11d2777a55 100644 |
--- a/cc/skpicture_canvas_layer_texture_updater.h |
+++ b/cc/skpicture_canvas_layer_texture_updater.h |
@@ -1,3 +1,48 @@ |
-// Copyright 2012 The Chromium Authors. All rights reserved. |
+// 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 SkPictureCanvasLayerTextureUpdater_h |
+#define SkPictureCanvasLayerTextureUpdater_h |
+ |
+#if USE(ACCELERATED_COMPOSITING) |
+ |
+#include "CanvasLayerTextureUpdater.h" |
+#include "SkPicture.h" |
+ |
+class SkCanvas; |
+ |
+namespace cc { |
+ |
+class LayerPainterChromium; |
+ |
+// This class records the contentRect into an SkPicture. Subclasses, provide |
+// different implementations of tile updating based on this recorded picture. |
+// The BitmapSkPictureCanvasLayerTextureUpdater and |
+// FrameBufferSkPictureCanvasLayerTextureUpdater are two examples of such |
+// implementations. |
+class SkPictureCanvasLayerTextureUpdater : public CanvasLayerTextureUpdater { |
+public: |
+ virtual ~SkPictureCanvasLayerTextureUpdater(); |
+ |
+ virtual void setOpaque(bool) OVERRIDE; |
+ |
+protected: |
+ explicit SkPictureCanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChromium>); |
+ |
+ virtual void prepareToUpdate(const IntRect& contentRect, const IntSize& tileSize, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpaqueRect, CCRenderingStats&) OVERRIDE; |
+ void drawPicture(SkCanvas*); |
+ |
+ bool layerIsOpaque() const { return m_layerIsOpaque; } |
+ |
+private: |
+ // Recording canvas. |
+ SkPicture m_picture; |
+ // True when it is known that all output pixels will be opaque. |
+ bool m_layerIsOpaque; |
+}; |
+ |
+} // namespace cc |
+#endif // USE(ACCELERATED_COMPOSITING) |
+#endif // SkPictureCanvasLayerTextureUpdater_h |