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// Copyright (c) 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 CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_SKIA_H_
#define CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_SKIA_H_
#pragma once
#include "base/memory/scoped_ptr.h"
#include "content/browser/renderer_host/backing_store.h"
#include "third_party/skia/include/core/SkBitmap.h"
class SkCanvas;
namespace gfx {
class Point;
class Canvas;
}
// A backing store that uses skia. This is a temporary backing store used by
// RenderWidgetHostViewViews. In time, only GPU rendering will be used for
// RWHVV, and then this backing store will be removed.
class BackingStoreSkia : public BackingStore {
public:
BackingStoreSkia(RenderWidgetHost* widget, const gfx::Size& size);
virtual ~BackingStoreSkia();
void SkiaShowRect(const gfx::Point& point, gfx::Canvas* canvas);
// BackingStore implementation.
virtual size_t MemorySize();
virtual void PaintToBackingStore(
RenderProcessHost* process,
TransportDIB::Id bitmap,
const gfx::Rect& bitmap_rect,
const std::vector<gfx::Rect>& copy_rects);
virtual bool CopyFromBackingStore(const gfx::Rect& rect,
skia::PlatformCanvas* output);
virtual void ScrollBackingStore(int dx, int dy,
const gfx::Rect& clip_rect,
const gfx::Size& view_size);
private:
SkBitmap bitmap_;
scoped_ptr<SkCanvas> canvas_;
DISALLOW_COPY_AND_ASSIGN(BackingStoreSkia);
};
#endif // CONTENT_BROWSER_RENDERER_HOST_BACKING_STORE_SKIA_H_
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