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// Copyright (c) 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 CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
#define CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
#include "base/basictypes.h"
#include "chrome/browser/renderer_host/backing_store.h"
#include "ipc/ipc_channel.h"
class GpuProcessHost;
class BackingStoreProxy : public BackingStore,
public IPC::Channel::Listener {
public:
BackingStoreProxy(RenderWidgetHost* widget, const gfx::Size& size,
GpuProcessHost* process, int32 routing_id);
virtual ~BackingStoreProxy();
// BackingStore implementation.
virtual void PaintToBackingStore(RenderProcessHost* process,
TransportDIB::Id bitmap,
const gfx::Rect& bitmap_rect,
const std::vector<gfx::Rect>& copy_rects,
bool* painted_synchronously);
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);
// IPC::Channel::Listener implementation.
virtual void OnMessageReceived(const IPC::Message& message);
virtual void OnChannelConnected(int32 peer_pid);
virtual void OnChannelError();
private:
// Message handlers.
void OnPaintToBackingStoreACK();
GpuProcessHost* process_;
int32 routing_id_;
// Set to true when we're waiting for the GPU process to do a paint and send
// back a "done" message. In this case, the renderer will be waiting for our
// message that we're done using the backing store.
bool waiting_for_paint_ack_;
DISALLOW_COPY_AND_ASSIGN(BackingStoreProxy);
};
#endif // CHROME_BROWSER_RENDERER_HOST_BACKING_STORE_PROXY_H_
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