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gpu_child_thread.cc
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gpu_child_thread.cc
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// Copyright (c) 2012 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.
#include "content/gpu/gpu_child_thread.h"
#include <stddef.h>
#include <utility>
#include "base/allocator/allocator_extension.h"
#include "base/bind.h"
#include "base/callback_helpers.h"
#include "base/command_line.h"
#include "base/memory/memory_coordinator_client_registry.h"
#include "base/memory/weak_ptr.h"
#include "base/run_loop.h"
#include "base/sequenced_task_runner.h"
#include "base/threading/thread_checker.h"
#include "build/build_config.h"
#include "components/viz/common/features.h"
#include "content/child/child_process.h"
#include "content/gpu/gpu_service_factory.h"
#include "content/public/common/connection_filter.h"
#include "content/public/common/content_client.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/service_manager_connection.h"
#include "content/public/common/service_names.mojom.h"
#include "content/public/gpu/content_gpu_client.h"
#include "gpu/command_buffer/common/activity_flags.h"
#include "gpu/ipc/service/gpu_channel_manager.h"
#include "gpu/ipc/service/gpu_init.h"
#include "gpu/ipc/service/gpu_watchdog_thread.h"
#include "ipc/ipc_sync_message_filter.h"
#include "media/gpu/ipc/service/media_gpu_channel_manager.h"
#include "services/service_manager/public/cpp/binder_registry.h"
#include "services/service_manager/public/cpp/connector.h"
#include "services/viz/privileged/interfaces/gl/gpu_service.mojom.h"
#include "third_party/skia/include/core/SkGraphics.h"
#if defined(USE_OZONE)
#include "ui/ozone/public/ozone_platform.h"
#endif
#if defined(OS_ANDROID)
#include "media/base/android/media_drm_bridge_client.h"
#include "media/mojo/clients/mojo_android_overlay.h"
#endif
namespace content {
namespace {
ChildThreadImpl::Options GetOptions() {
ChildThreadImpl::Options::Builder builder;
#if defined(USE_OZONE)
IPC::MessageFilter* message_filter =
ui::OzonePlatform::GetInstance()->GetGpuMessageFilter();
if (message_filter)
builder.AddStartupFilter(message_filter);
#endif
builder.AutoStartServiceManagerConnection(false);
builder.ConnectToBrowser(true);
return builder.Build();
}
// This ConnectionFilter queues all incoming bind interface requests until
// Release() is called.
class QueueingConnectionFilter : public ConnectionFilter {
public:
QueueingConnectionFilter(
scoped_refptr<base::SequencedTaskRunner> io_task_runner,
std::unique_ptr<service_manager::BinderRegistry> registry)
: io_task_runner_(io_task_runner),
registry_(std::move(registry)),
weak_factory_(this) {
// This will be reattached by any of the IO thread functions on first call.
io_thread_checker_.DetachFromThread();
}
~QueueingConnectionFilter() override {
DCHECK(io_thread_checker_.CalledOnValidThread());
}
base::Closure GetReleaseCallback() {
return base::Bind(base::IgnoreResult(&base::TaskRunner::PostTask),
io_task_runner_, FROM_HERE,
base::Bind(&QueueingConnectionFilter::Release,
weak_factory_.GetWeakPtr()));
}
void AddInterfaces() {
#if defined(USE_OZONE)
ui::OzonePlatform::GetInstance()->AddInterfaces(registry_.get());
#endif
}
private:
struct PendingRequest {
std::string interface_name;
mojo::ScopedMessagePipeHandle interface_pipe;
};
// ConnectionFilter:
void OnBindInterface(const service_manager::BindSourceInfo& source_info,
const std::string& interface_name,
mojo::ScopedMessagePipeHandle* interface_pipe,
service_manager::Connector* connector) override {
DCHECK(io_thread_checker_.CalledOnValidThread());
if (registry_->CanBindInterface(interface_name)) {
if (released_) {
registry_->BindInterface(interface_name, std::move(*interface_pipe));
} else {
std::unique_ptr<PendingRequest> request =
std::make_unique<PendingRequest>();
request->interface_name = interface_name;
request->interface_pipe = std::move(*interface_pipe);
pending_requests_.push_back(std::move(request));
}
}
}
void Release() {
DCHECK(io_thread_checker_.CalledOnValidThread());
released_ = true;
for (auto& request : pending_requests_) {
registry_->BindInterface(request->interface_name,
std::move(request->interface_pipe));
}
}
base::ThreadChecker io_thread_checker_;
scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
bool released_ = false;
std::vector<std::unique_ptr<PendingRequest>> pending_requests_;
std::unique_ptr<service_manager::BinderRegistry> registry_;
base::WeakPtrFactory<QueueingConnectionFilter> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(QueueingConnectionFilter);
};
viz::VizMainImpl::ExternalDependencies CreateVizMainDependencies(
service_manager::Connector* connector) {
viz::VizMainImpl::ExternalDependencies deps;
deps.create_display_compositor =
base::FeatureList::IsEnabled(features::kVizDisplayCompositor);
if (GetContentClient()->gpu())
deps.sync_point_manager = GetContentClient()->gpu()->GetSyncPointManager();
auto* process = ChildProcess::current();
deps.shutdown_event = process->GetShutDownEvent();
deps.io_thread_task_runner = process->io_task_runner();
deps.connector = connector;
return deps;
}
} // namespace
GpuChildThread::GpuChildThread(std::unique_ptr<gpu::GpuInit> gpu_init,
viz::VizMainImpl::LogMessages log_messages)
: GpuChildThread(GetOptions(), std::move(gpu_init)) {
viz_main_.SetLogMessagesForHost(std::move(log_messages));
}
GpuChildThread::GpuChildThread(const InProcessChildThreadParams& params,
std::unique_ptr<gpu::GpuInit> gpu_init)
: GpuChildThread(ChildThreadImpl::Options::Builder()
.InBrowserProcess(params)
.AutoStartServiceManagerConnection(false)
.ConnectToBrowser(true)
.Build(),
std::move(gpu_init)) {}
GpuChildThread::GpuChildThread(const ChildThreadImpl::Options& options,
std::unique_ptr<gpu::GpuInit> gpu_init)
: ChildThreadImpl(options),
viz_main_(this,
CreateVizMainDependencies(GetConnector()),
std::move(gpu_init)),
weak_factory_(this) {
if (in_process_gpu()) {
DCHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kSingleProcess) ||
base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kInProcessGPU));
}
}
GpuChildThread::~GpuChildThread() {
base::MemoryCoordinatorClientRegistry::GetInstance()->Unregister(this);
}
void GpuChildThread::Init(const base::Time& process_start_time) {
viz_main_.gpu_service()->set_start_time(process_start_time);
// When running in in-process mode, this has been set in the browser at
// ChromeBrowserMainPartsAndroid::PreMainMessageLoopRun().
#if defined(OS_ANDROID)
if (!in_process_gpu()) {
media::SetMediaDrmBridgeClient(
GetContentClient()->GetMediaDrmBridgeClient());
}
#endif
blink::AssociatedInterfaceRegistry* associated_registry =
&associated_interfaces_;
associated_registry->AddInterface(base::Bind(
&GpuChildThread::CreateVizMainService, base::Unretained(this)));
auto registry = std::make_unique<service_manager::BinderRegistry>();
registry->AddInterface(base::Bind(&GpuChildThread::BindServiceFactoryRequest,
weak_factory_.GetWeakPtr()),
base::ThreadTaskRunnerHandle::Get());
if (GetContentClient()->gpu()) // nullptr in tests.
GetContentClient()->gpu()->InitializeRegistry(registry.get());
std::unique_ptr<QueueingConnectionFilter> filter =
std::make_unique<QueueingConnectionFilter>(GetIOTaskRunner(),
std::move(registry));
release_pending_requests_closure_ = filter->GetReleaseCallback();
filter->AddInterfaces();
GetServiceManagerConnection()->AddConnectionFilter(std::move(filter));
StartServiceManagerConnection();
base::MemoryCoordinatorClientRegistry::GetInstance()->Register(this);
memory_pressure_listener_ =
std::make_unique<base::MemoryPressureListener>(base::BindRepeating(
&GpuChildThread::OnMemoryPressure, base::Unretained(this)));
}
void GpuChildThread::CreateVizMainService(
viz::mojom::VizMainAssociatedRequest request) {
viz_main_.BindAssociated(std::move(request));
}
bool GpuChildThread::in_process_gpu() const {
return viz_main_.gpu_service()->gpu_info().in_process_gpu;
}
bool GpuChildThread::Send(IPC::Message* msg) {
// The GPU process must never send a synchronous IPC message to the browser
// process. This could result in deadlock.
DCHECK(!msg->is_sync());
return ChildThreadImpl::Send(msg);
}
void GpuChildThread::OnAssociatedInterfaceRequest(
const std::string& name,
mojo::ScopedInterfaceEndpointHandle handle) {
if (associated_interfaces_.CanBindRequest(name))
associated_interfaces_.BindRequest(name, std::move(handle));
else
ChildThreadImpl::OnAssociatedInterfaceRequest(name, std::move(handle));
}
void GpuChildThread::OnInitializationFailed() {
OnChannelError();
}
void GpuChildThread::OnGpuServiceConnection(viz::GpuServiceImpl* gpu_service) {
media::AndroidOverlayMojoFactoryCB overlay_factory_cb;
#if defined(OS_ANDROID)
overlay_factory_cb = base::Bind(&GpuChildThread::CreateAndroidOverlay,
base::ThreadTaskRunnerHandle::Get());
gpu_service->media_gpu_channel_manager()->SetOverlayFactory(
overlay_factory_cb);
#endif
// Only set once per process instance.
service_factory_.reset(new GpuServiceFactory(
gpu_service->gpu_preferences(),
gpu_service->gpu_channel_manager()->gpu_driver_bug_workarounds(),
gpu_service->media_gpu_channel_manager()->AsWeakPtr(),
std::move(overlay_factory_cb)));
if (GetContentClient()->gpu()) { // NULL in tests.
GetContentClient()->gpu()->GpuServiceInitialized(
gpu_service->gpu_preferences());
}
release_pending_requests_closure_.Run();
}
void GpuChildThread::PostCompositorThreadCreated(
base::SingleThreadTaskRunner* task_runner) {
auto* gpu_client = GetContentClient()->gpu();
if (gpu_client)
gpu_client->PostCompositorThreadCreated(task_runner);
}
void GpuChildThread::BindServiceFactoryRequest(
service_manager::mojom::ServiceFactoryRequest request) {
DVLOG(1) << "GPU: Binding service_manager::mojom::ServiceFactoryRequest";
DCHECK(service_factory_);
service_factory_bindings_.AddBinding(service_factory_.get(),
std::move(request));
}
void GpuChildThread::OnTrimMemoryImmediately() {
OnPurgeMemory();
}
void GpuChildThread::OnMemoryPressure(
base::MemoryPressureListener::MemoryPressureLevel level) {
if (level == base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL)
OnPurgeMemory();
}
void GpuChildThread::OnPurgeMemory() {
base::allocator::ReleaseFreeMemory();
if (viz_main_.discardable_shared_memory_manager())
viz_main_.discardable_shared_memory_manager()->ReleaseFreeMemory();
SkGraphics::PurgeAllCaches();
}
#if defined(OS_ANDROID)
// static
std::unique_ptr<media::AndroidOverlay> GpuChildThread::CreateAndroidOverlay(
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
const base::UnguessableToken& routing_token,
media::AndroidOverlayConfig config) {
media::mojom::AndroidOverlayProviderPtr overlay_provider;
if (main_task_runner->RunsTasksInCurrentSequence()) {
ChildThread::Get()->GetConnector()->BindInterface(
content::mojom::kBrowserServiceName, &overlay_provider);
} else {
// Create a connector on this sequence and bind it on the main thread.
service_manager::mojom::ConnectorRequest request;
auto connector = service_manager::Connector::Create(&request);
connector->BindInterface(content::mojom::kBrowserServiceName,
&overlay_provider);
auto bind_connector_request =
[](service_manager::mojom::ConnectorRequest request) {
ChildThread::Get()->GetConnector()->BindConnectorRequest(
std::move(request));
};
main_task_runner->PostTask(
FROM_HERE, base::BindOnce(bind_connector_request, std::move(request)));
}
return std::make_unique<media::MojoAndroidOverlay>(
std::move(overlay_provider), std::move(config), routing_token);
}
#endif
} // namespace content