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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/embedded_frame_sink_impl.h"
#include <memory>
#include <utility>
#include "base/time/time.h"
#include "components/viz/host/host_frame_sink_manager.h"
namespace content {
EmbeddedFrameSinkImpl::EmbeddedFrameSinkImpl(
viz::HostFrameSinkManager* host_frame_sink_manager,
const viz::FrameSinkId& parent_frame_sink_id,
const viz::FrameSinkId& frame_sink_id,
mojo::PendingRemote<blink::mojom::EmbeddedFrameSinkClient> client,
DestroyCallback destroy_callback)
: host_frame_sink_manager_(host_frame_sink_manager),
parent_frame_sink_id_(parent_frame_sink_id),
frame_sink_id_(frame_sink_id) {
client_.Bind(std::move(client));
client_.set_disconnect_handler(std::move(destroy_callback));
host_frame_sink_manager_->RegisterFrameSinkId(
frame_sink_id_, this, viz::ReportFirstSurfaceActivation::kNo);
host_frame_sink_manager_->SetFrameSinkDebugLabel(frame_sink_id_,
"EmbeddedFrameSinkImpl");
}
EmbeddedFrameSinkImpl::~EmbeddedFrameSinkImpl() {
if (has_registered_compositor_frame_sink_) {
host_frame_sink_manager_->UnregisterFrameSinkHierarchy(
parent_frame_sink_id_, frame_sink_id_);
}
host_frame_sink_manager_->InvalidateFrameSinkId(frame_sink_id_, this);
}
void EmbeddedFrameSinkImpl::CreateCompositorFrameSink(
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> client,
mojo::PendingReceiver<viz::mojom::CompositorFrameSink> receiver) {
CreateFrameSink(/*bundle_id=*/std::nullopt, std::move(client),
std::move(receiver));
}
void EmbeddedFrameSinkImpl::CreateBundledCompositorFrameSink(
const viz::FrameSinkBundleId& bundle_id,
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> client,
mojo::PendingReceiver<viz::mojom::CompositorFrameSink> receiver) {
CreateFrameSink(bundle_id, std::move(client), std::move(receiver));
}
void EmbeddedFrameSinkImpl::CreateFrameSink(
const std::optional<viz::FrameSinkBundleId>& bundle_id,
mojo::PendingRemote<viz::mojom::CompositorFrameSinkClient> client,
mojo::PendingReceiver<viz::mojom::CompositorFrameSink> receiver) {
// We might recreate the CompositorFrameSink on context loss or GPU crash.
// Only register frame sink hierarchy the first time.
if (!has_registered_compositor_frame_sink_) {
// The request to create an embedded frame sink and the lifetime of the
// parent are controlled by different IPC channels. It's possible the parent
// FrameSinkId has been invalidated by the time this request has arrived. In
// that case, drop the request since there is no embedder.
if (!host_frame_sink_manager_->RegisterFrameSinkHierarchy(
parent_frame_sink_id_, frame_sink_id_)) {
return;
}
}
if (bundle_id.has_value()) {
host_frame_sink_manager_->CreateBundledCompositorFrameSink(
frame_sink_id_, *bundle_id, std::move(receiver), std::move(client));
} else {
host_frame_sink_manager_->CreateCompositorFrameSink(
frame_sink_id_, std::move(receiver), std::move(client));
}
has_registered_compositor_frame_sink_ = true;
}
void EmbeddedFrameSinkImpl::ConnectToEmbedder(
mojo::PendingReceiver<blink::mojom::SurfaceEmbedder>
surface_embedder_receiver) {
client_->BindSurfaceEmbedder(std::move(surface_embedder_receiver));
}
void EmbeddedFrameSinkImpl::OnFirstSurfaceActivation(
const viz::SurfaceInfo& surface_info) {}
void EmbeddedFrameSinkImpl::OnFrameTokenChanged(
uint32_t frame_token,
base::TimeTicks activation_time) {
// TODO(yiyix, fsamuel): To complete plumbing of frame tokens for offscreen
// canvas
}
void EmbeddedFrameSinkImpl::RegisterFrameSinkHierarchy() {
if (!has_registered_compositor_frame_sink_ &&
host_frame_sink_manager_->RegisterFrameSinkHierarchy(
parent_frame_sink_id_, frame_sink_id_)) {
has_registered_compositor_frame_sink_ = true;
return;
}
DLOG(ERROR) << "Unable to register " << parent_frame_sink_id_
<< " as parent of " << frame_sink_id_;
}
void EmbeddedFrameSinkImpl::UnregisterFrameSinkHierarchy() {
if (has_registered_compositor_frame_sink_) {
host_frame_sink_manager_->UnregisterFrameSinkHierarchy(
parent_frame_sink_id_, frame_sink_id_);
has_registered_compositor_frame_sink_ = false;
return;
}
DLOG(ERROR) << "Unable to unregister " << parent_frame_sink_id_
<< " as parent of " << frame_sink_id_;
}
} // namespace content
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