chromium/cc/trees/layer_tree_frame_sink.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_TREES_LAYER_TREE_FRAME_SINK_H_
#define CC_TREES_LAYER_TREE_FRAME_SINK_H_

#include <deque>
#include <memory>

#include "base/memory/raw_ptr.h"
#include "base/memory/read_only_shared_memory_region.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/task/single_thread_task_runner.h"
#include "base/threading/thread_checker.h"
#include "cc/cc_export.h"
#include "cc/scheduler/scheduler.h"
#include "cc/trees/raster_context_provider_wrapper.h"
#include "components/viz/client/shared_bitmap_reporter.h"
#include "components/viz/common/gpu/context_lost_observer.h"
#include "components/viz/common/gpu/context_provider.h"
#include "components/viz/common/gpu/raster_context_provider.h"
#include "components/viz/common/resources/returned_resource.h"
#include "gpu/ipc/client/gpu_channel_observer.h"
#include "ui/gfx/color_space.h"

namespace gpu {
class GpuMemoryBufferManager;
class ClientSharedImageInterface;
}

namespace viz {
class CompositorFrame;
class LocalSurfaceId;
struct BeginFrameAck;
}  // namespace viz

namespace cc {

class LayerContext;
class LayerTreeFrameSinkClient;
class LayerTreeHostImpl;

// An interface for submitting CompositorFrames to a display compositor
// which will compose frames from multiple clients to show on screen to the
// user.
// If a context_provider() is present, frames should be submitted with
// OpenGL resources (created with the context_provider()). If not, then
// SharedMemory resources should be used.
class CC_EXPORT LayerTreeFrameSink : public viz::SharedBitmapReporter,
                                     public viz::ContextLostObserver,
                                     public gpu::GpuChannelLostObserver { … };

}  // namespace cc

#endif  // CC_TREES_LAYER_TREE_FRAME_SINK_H_