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// Copyright 2017 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 COMPONENTS_VIZ_HOST_HOST_FRAME_SINK_MANAGER_H_
#define COMPONENTS_VIZ_HOST_HOST_FRAME_SINK_MANAGER_H_
#include <memory>
#include "base/compiler_specific.h"
#include "base/containers/flat_map.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/optional.h"
#include "components/viz/common/surfaces/frame_sink_id.h"
#include "components/viz/host/host_frame_sink_client.h"
#include "components/viz/host/viz_host_export.h"
#include "components/viz/service/frame_sinks/compositor_frame_sink_support_manager.h"
#include "mojo/public/cpp/bindings/binding.h"
#include "services/viz/compositing/privileged/interfaces/frame_sink_manager.mojom.h"
namespace base {
class SingleThreadTaskRunner;
}
namespace viz {
class CompositorFrameSinkSupport;
class CompositorFrameSinkSupportClient;
class FrameSinkManagerImpl;
class SurfaceInfo;
namespace test {
class HostFrameSinkManagerTest;
}
// Browser side wrapper of mojom::FrameSinkManager, to be used from the
// UI thread. Manages frame sinks and is intended to replace all usage of
// FrameSinkManagerImpl.
class VIZ_HOST_EXPORT HostFrameSinkManager
: public NON_EXPORTED_BASE(mojom::FrameSinkManagerClient),
public NON_EXPORTED_BASE(CompositorFrameSinkSupportManager) {
public:
HostFrameSinkManager();
~HostFrameSinkManager() override;
// Sets a local FrameSinkManagerImpl instance and connects directly to it.
void SetLocalManager(FrameSinkManagerImpl* frame_sink_manager_impl);
// Binds |this| as a FrameSinkManagerClient for |request| on |task_runner|. On
// Mac |task_runner| will be the resize helper task runner. May only be called
// once.
void BindAndSetManager(
mojom::FrameSinkManagerClientRequest request,
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
mojom::FrameSinkManagerPtr ptr);
// Registers |frame_sink_id| will be used. This must be called before
// CreateCompositorFrameSink(Support) is called.
void RegisterFrameSinkId(const FrameSinkId& frame_sink_id,
HostFrameSinkClient* client);
// Invalidates |frame_sink_id| which cleans up any unsatisified surface
// sequences or dangling temporary references assigned to it. If there is a
// CompositorFrameSink for |frame_sink_id| then it will be destroyed and the
// message pipe to the client will be closed.
void InvalidateFrameSinkId(const FrameSinkId& frame_sink_id);
// Creates a connection between client to viz, using |request| and |client|,
// that allows the client to submit CompositorFrames. When no longer needed,
// call InvalidateFrameSinkId().
void CreateCompositorFrameSink(const FrameSinkId& frame_sink_id,
mojom::CompositorFrameSinkRequest request,
mojom::CompositorFrameSinkClientPtr client);
// Registers FrameSink hierarchy. Clients can call this multiple times to
// reparent without calling UnregisterFrameSinkHierarchy().
void RegisterFrameSinkHierarchy(const FrameSinkId& parent_frame_sink_id,
const FrameSinkId& child_frame_sink_id);
// Unregisters FrameSink hierarchy. Client must have registered FrameSink
// hierarchy before unregistering.
void UnregisterFrameSinkHierarchy(const FrameSinkId& parent_frame_sink_id,
const FrameSinkId& child_frame_sink_id);
// CompositorFrameSinkSupportManager:
std::unique_ptr<CompositorFrameSinkSupport> CreateCompositorFrameSinkSupport(
CompositorFrameSinkSupportClient* client,
const FrameSinkId& frame_sink_id,
bool is_root,
bool needs_sync_points) override;
private:
friend class test::HostFrameSinkManagerTest;
struct FrameSinkData {
FrameSinkData();
FrameSinkData(FrameSinkData&& other);
~FrameSinkData();
FrameSinkData& operator=(FrameSinkData&& other);
bool HasCompositorFrameSinkData() const {
return has_created_compositor_frame_sink || support;
}
// Returns true if there is nothing in FrameSinkData and it can be deleted.
bool IsEmpty() const {
return !HasCompositorFrameSinkData() && !parent.has_value() && !client;
}
// The client to be notified of changes to this FrameSink.
HostFrameSinkClient* client = nullptr;
// If the frame sink is a root that corresponds to a Display.
bool is_root = false;
// The FrameSinkId registered as the parent in the BeginFrame hierarchy.
base::Optional<FrameSinkId> parent;
// If a mojom::CompositorFrameSink was created for this FrameSinkId. This
// will always be false if not using Mojo.
bool has_created_compositor_frame_sink = false;
// This will be null if using Mojo.
CompositorFrameSinkSupport* support = nullptr;
private:
DISALLOW_COPY_AND_ASSIGN(FrameSinkData);
};
// Destroys a client connection. Will call UnregisterFrameSinkHierarchy() with
// the registered parent if there is one.
void DestroyCompositorFrameSink(const FrameSinkId& frame_sink_id);
// Assigns the temporary reference to the frame sink that is expected to
// embeded |surface_id|, otherwise drops the temporary reference.
void PerformAssignTemporaryReference(const SurfaceId& surface_id);
// mojom::FrameSinkManagerClient:
void OnSurfaceCreated(const SurfaceInfo& surface_info) override;
void OnClientConnectionClosed(const FrameSinkId& frame_sink_id) override;
// This will point to |frame_sink_manager_ptr_| if using Mojo or
// |frame_sink_manager_impl_| if directly connected. Use this to make function
// calls.
mojom::FrameSinkManager* frame_sink_manager_ = nullptr;
// Mojo connection to the FrameSinkManager. If this is bound then
// |frame_sink_manager_impl_| must be null.
mojom::FrameSinkManagerPtr frame_sink_manager_ptr_;
// Mojo connection back from the FrameSinkManager.
mojo::Binding<mojom::FrameSinkManagerClient> binding_;
// A direct connection to FrameSinkManagerImpl. If this is set then
// |frame_sink_manager_ptr_| must be unbound. For use in browser process only,
// viz process should not set this.
FrameSinkManagerImpl* frame_sink_manager_impl_ = nullptr;
// Per CompositorFrameSink data.
base::flat_map<FrameSinkId, FrameSinkData> frame_sink_data_map_;
base::WeakPtrFactory<HostFrameSinkManager> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(HostFrameSinkManager);
};
} // namespace viz
#endif // COMPONENTS_VIZ_HOST_HOST_FRAME_SINK_MANAGER_H_