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// 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 "skia/ext/refptr.h"
#include "third_party/skia/include/core/SkPicture.h"
class SkCanvas;
namespace cc {
class LayerPainter;
// This class records the content_rect into an SkPicture. Subclass provides
// SkCanvas to DrawPicture() for tile updating based on this recorded picture.
class SkPictureContentLayerUpdater : public ContentLayerUpdater {
protected:
SkPictureContentLayerUpdater(
scoped_ptr<LayerPainter> painter,
RenderingStatsInstrumentation* stats_instrumentation,
int layer_id);
virtual ~SkPictureContentLayerUpdater();
virtual void PrepareToUpdate(const gfx::Rect& content_rect,
const gfx::Size& tile_size,
float contents_width_scale,
float contents_height_scale,
gfx::Rect* resulting_opaque_rect) OVERRIDE;
void DrawPicture(SkCanvas* canvas);
private:
skia::RefPtr<SkPicture> picture_;
DISALLOW_COPY_AND_ASSIGN(SkPictureContentLayerUpdater);
};
} // namespace cc
#endif // CC_RESOURCES_SKPICTURE_CONTENT_LAYER_UPDATER_H_
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