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// Copyright 2016 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_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_
#define CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_
#include "cc/resources/returned_resource.h"
namespace gfx {
class Rect;
}
namespace cc {
class LocalSurfaceId;
struct BeginFrameArgs;
class CompositorFrameSinkSupportClient {
public:
// Notification that the previous CompositorFrame given to
// SubmitCompositorFrame() has been processed and that another frame
// can be submitted. This provides backpressure from the display compositor
// so that frames are submitted only at the rate it can handle them.
// TODO(fsamuel): This method ought not be necessary with unified BeginFrame.
// However, there's a fair amount of cleanup and refactoring necessary to get
// rid of it.
virtual void DidReceiveCompositorFrameAck(
const ReturnedResourceArray& resources) = 0;
// Notification for the client to generate a CompositorFrame.
virtual void OnBeginFrame(const BeginFrameArgs& args) = 0;
// Returns resources sent to SubmitCompositorFrame to be reused or freed.
virtual void ReclaimResources(const ReturnedResourceArray& resources) = 0;
// Called when surface is being scheduled for a draw.
virtual void WillDrawSurface(const LocalSurfaceId& local_surface_id,
const gfx::Rect& damage_rect) = 0;
protected:
virtual ~CompositorFrameSinkSupportClient() {}
};
} // namespace cc
#endif // CC_SURFACES_COMPOSITOR_FRAME_SINK_SUPPORT_CLIENT_H_