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browser_gpu_channel_host_factory.cc
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browser_gpu_channel_host_factory.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/browser/gpu/browser_gpu_channel_host_factory.h"
#include "base/bind.h"
#include "base/command_line.h"
#include "base/location.h"
#include "base/single_thread_task_runner.h"
#include "base/synchronization/waitable_event.h"
#include "base/threading/thread_restrictions.h"
#include "base/threading/thread_task_runner_handle.h"
#include "base/trace_event/memory_dump_manager.h"
#include "base/trace_event/trace_event.h"
#include "build/build_config.h"
#include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
#include "content/browser/gpu/gpu_data_manager_impl.h"
#include "content/browser/gpu/gpu_process_host.h"
#include "content/browser/gpu/shader_cache_factory.h"
#include "content/common/child_process_host_impl.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/content_browser_client.h"
#include "content/public/browser/gpu_data_manager.h"
#include "content/public/common/content_client.h"
#include "gpu/command_buffer/service/gpu_switches.h"
#include "gpu/ipc/common/gpu_messages.h"
#include "ipc/ipc_channel_handle.h"
#include "ipc/message_filter.h"
#include "services/resource_coordinator/public/interfaces/memory_instrumentation/constants.mojom.h"
#include "services/service_manager/runner/common/client_util.h"
#if defined(USE_AURA)
#include "ui/aura/env.h"
#endif
namespace content {
BrowserGpuChannelHostFactory* BrowserGpuChannelHostFactory::instance_ = NULL;
class BrowserGpuChannelHostFactory::EstablishRequest
: public base::RefCountedThreadSafe<EstablishRequest> {
public:
static scoped_refptr<EstablishRequest> Create(int gpu_client_id,
uint64_t gpu_client_tracing_id);
void Wait();
void Cancel();
IPC::ChannelHandle& channel_handle() { return channel_handle_; }
const gpu::GPUInfo& gpu_info() const { return gpu_info_; }
const gpu::GpuFeatureInfo& gpu_feature_info() const {
return gpu_feature_info_;
}
private:
friend class base::RefCountedThreadSafe<EstablishRequest>;
explicit EstablishRequest(int gpu_client_id, uint64_t gpu_client_tracing_id);
~EstablishRequest() {}
void EstablishOnIO();
void OnEstablishedOnIO(const IPC::ChannelHandle& channel_handle,
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info,
GpuProcessHost::EstablishChannelStatus status);
void FinishOnIO();
void FinishOnMain();
base::WaitableEvent event_;
const int gpu_client_id_;
const uint64_t gpu_client_tracing_id_;
IPC::ChannelHandle channel_handle_;
gpu::GPUInfo gpu_info_;
gpu::GpuFeatureInfo gpu_feature_info_;
bool finished_;
scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
};
scoped_refptr<BrowserGpuChannelHostFactory::EstablishRequest>
BrowserGpuChannelHostFactory::EstablishRequest::Create(
int gpu_client_id,
uint64_t gpu_client_tracing_id) {
scoped_refptr<EstablishRequest> establish_request =
new EstablishRequest(gpu_client_id, gpu_client_tracing_id);
scoped_refptr<base::SingleThreadTaskRunner> task_runner =
BrowserThread::GetTaskRunnerForThread(BrowserThread::IO);
// PostTask outside the constructor to ensure at least one reference exists.
task_runner->PostTask(
FROM_HERE,
base::BindOnce(
&BrowserGpuChannelHostFactory::EstablishRequest::EstablishOnIO,
establish_request));
return establish_request;
}
BrowserGpuChannelHostFactory::EstablishRequest::EstablishRequest(
int gpu_client_id,
uint64_t gpu_client_tracing_id)
: event_(base::WaitableEvent::ResetPolicy::AUTOMATIC,
base::WaitableEvent::InitialState::NOT_SIGNALED),
gpu_client_id_(gpu_client_id),
gpu_client_tracing_id_(gpu_client_tracing_id),
finished_(false),
main_task_runner_(base::ThreadTaskRunnerHandle::Get()) {}
void BrowserGpuChannelHostFactory::EstablishRequest::EstablishOnIO() {
GpuProcessHost* host = GpuProcessHost::Get();
if (!host) {
LOG(ERROR) << "Failed to launch GPU process.";
FinishOnIO();
return;
}
bool preempts = true;
bool allow_view_command_buffers = true;
bool allow_real_time_streams = true;
host->EstablishGpuChannel(
gpu_client_id_, gpu_client_tracing_id_, preempts,
allow_view_command_buffers, allow_real_time_streams,
base::Bind(
&BrowserGpuChannelHostFactory::EstablishRequest::OnEstablishedOnIO,
this));
}
void BrowserGpuChannelHostFactory::EstablishRequest::OnEstablishedOnIO(
const IPC::ChannelHandle& channel_handle,
const gpu::GPUInfo& gpu_info,
const gpu::GpuFeatureInfo& gpu_feature_info,
GpuProcessHost::EstablishChannelStatus status) {
if (!channel_handle.mojo_handle.is_valid() &&
status == GpuProcessHost::EstablishChannelStatus::GPU_HOST_INVALID) {
DVLOG(1) << "Failed to create channel on existing GPU process. Trying to "
"restart GPU process.";
EstablishOnIO();
return;
}
channel_handle_ = channel_handle;
gpu_info_ = gpu_info;
gpu_feature_info_ = gpu_feature_info;
FinishOnIO();
}
void BrowserGpuChannelHostFactory::EstablishRequest::FinishOnIO() {
event_.Signal();
main_task_runner_->PostTask(
FROM_HERE,
base::BindOnce(
&BrowserGpuChannelHostFactory::EstablishRequest::FinishOnMain, this));
}
void BrowserGpuChannelHostFactory::EstablishRequest::FinishOnMain() {
if (!finished_) {
BrowserGpuChannelHostFactory* factory =
BrowserGpuChannelHostFactory::instance();
factory->GpuChannelEstablished();
finished_ = true;
}
}
void BrowserGpuChannelHostFactory::EstablishRequest::Wait() {
DCHECK(main_task_runner_->BelongsToCurrentThread());
{
// We're blocking the UI thread, which is generally undesirable.
// In this case we need to wait for this before we can show any UI
// /anyway/, so it won't cause additional jank.
// TODO(piman): Make this asynchronous (http://crbug.com/125248).
TRACE_EVENT0("browser",
"BrowserGpuChannelHostFactory::EstablishGpuChannelSync");
base::ThreadRestrictions::ScopedAllowWait allow_wait;
event_.Wait();
}
FinishOnMain();
}
void BrowserGpuChannelHostFactory::EstablishRequest::Cancel() {
DCHECK(main_task_runner_->BelongsToCurrentThread());
finished_ = true;
}
void BrowserGpuChannelHostFactory::CloseChannel() {
DCHECK(instance_);
if (instance_->gpu_channel_) {
instance_->gpu_channel_->DestroyChannel();
instance_->gpu_channel_ = nullptr;
}
}
void BrowserGpuChannelHostFactory::Initialize(bool establish_gpu_channel) {
DCHECK(!instance_);
instance_ = new BrowserGpuChannelHostFactory();
if (establish_gpu_channel) {
instance_->EstablishGpuChannel(gpu::GpuChannelEstablishedCallback());
}
}
void BrowserGpuChannelHostFactory::Terminate() {
DCHECK(instance_);
delete instance_;
instance_ = NULL;
}
BrowserGpuChannelHostFactory::BrowserGpuChannelHostFactory()
: gpu_client_id_(ChildProcessHostImpl::GenerateChildProcessUniqueId()),
gpu_client_tracing_id_(
memory_instrumentation::mojom::kServiceTracingProcessId),
shutdown_event_(new base::WaitableEvent(
base::WaitableEvent::ResetPolicy::MANUAL,
base::WaitableEvent::InitialState::NOT_SIGNALED)),
gpu_memory_buffer_manager_(
new BrowserGpuMemoryBufferManager(gpu_client_id_,
gpu_client_tracing_id_)) {
if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
switches::kDisableGpuShaderDiskCache)) {
DCHECK(GetContentClient());
base::FilePath cache_dir =
GetContentClient()->browser()->GetShaderDiskCacheDirectory();
if (!cache_dir.empty()) {
GetIOThreadTaskRunner()->PostTask(
FROM_HERE,
base::BindOnce(
&BrowserGpuChannelHostFactory::InitializeShaderDiskCacheOnIO,
gpu_client_id_, cache_dir));
}
}
}
BrowserGpuChannelHostFactory::~BrowserGpuChannelHostFactory() {
DCHECK(IsMainThread());
if (pending_request_.get())
pending_request_->Cancel();
shutdown_event_->Signal();
if (gpu_channel_) {
gpu_channel_->DestroyChannel();
gpu_channel_ = NULL;
}
}
bool BrowserGpuChannelHostFactory::IsMainThread() {
return BrowserThread::CurrentlyOn(BrowserThread::UI);
}
scoped_refptr<base::SingleThreadTaskRunner>
BrowserGpuChannelHostFactory::GetIOThreadTaskRunner() {
return BrowserThread::GetTaskRunnerForThread(BrowserThread::IO);
}
std::unique_ptr<base::SharedMemory>
BrowserGpuChannelHostFactory::AllocateSharedMemory(size_t size) {
std::unique_ptr<base::SharedMemory> shm(new base::SharedMemory());
if (!shm->CreateAnonymous(size))
return std::unique_ptr<base::SharedMemory>();
return shm;
}
void BrowserGpuChannelHostFactory::EstablishGpuChannel(
const gpu::GpuChannelEstablishedCallback& callback) {
#if defined(USE_AURA)
DCHECK_EQ(aura::Env::Mode::LOCAL, aura::Env::GetInstance()->mode());
#endif
DCHECK(IsMainThread());
if (gpu_channel_.get() && gpu_channel_->IsLost()) {
DCHECK(!pending_request_.get());
// Recreate the channel if it has been lost.
gpu_channel_->DestroyChannel();
gpu_channel_ = NULL;
}
if (!gpu_channel_.get() && !pending_request_.get()) {
// We should only get here if the context was lost.
pending_request_ =
EstablishRequest::Create(gpu_client_id_, gpu_client_tracing_id_);
}
if (!callback.is_null()) {
if (gpu_channel_.get())
callback.Run(gpu_channel_);
else
established_callbacks_.push_back(callback);
}
}
// Blocking the UI thread to open a GPU channel is not supported on Android.
// (Opening the initial channel to a child process involves handling a reply
// task on the UI thread first, so we cannot block here.)
scoped_refptr<gpu::GpuChannelHost>
BrowserGpuChannelHostFactory::EstablishGpuChannelSync() {
#if defined(OS_ANDROID)
NOTREACHED();
return nullptr;
#endif
EstablishGpuChannel(gpu::GpuChannelEstablishedCallback());
if (pending_request_.get())
pending_request_->Wait();
return gpu_channel_;
}
gpu::GpuMemoryBufferManager*
BrowserGpuChannelHostFactory::GetGpuMemoryBufferManager() {
return gpu_memory_buffer_manager_.get();
}
gpu::GpuChannelHost* BrowserGpuChannelHostFactory::GetGpuChannel() {
if (gpu_channel_.get() && !gpu_channel_->IsLost())
return gpu_channel_.get();
return NULL;
}
void BrowserGpuChannelHostFactory::GpuChannelEstablished() {
DCHECK(IsMainThread());
DCHECK(pending_request_.get());
if (!pending_request_->channel_handle().mojo_handle.is_valid()) {
DCHECK(!gpu_channel_.get());
} else {
GetContentClient()->SetGpuInfo(pending_request_->gpu_info());
gpu_channel_ = gpu::GpuChannelHost::Create(
this, gpu_client_id_, pending_request_->gpu_info(),
pending_request_->gpu_feature_info(),
pending_request_->channel_handle(), shutdown_event_.get(),
gpu_memory_buffer_manager_.get());
}
pending_request_ = NULL;
std::vector<gpu::GpuChannelEstablishedCallback> established_callbacks;
established_callbacks_.swap(established_callbacks);
for (auto& callback : established_callbacks)
callback.Run(gpu_channel_);
}
// static
void BrowserGpuChannelHostFactory::InitializeShaderDiskCacheOnIO(
int gpu_client_id,
const base::FilePath& cache_dir) {
GetShaderCacheFactorySingleton()->SetCacheInfo(gpu_client_id, cache_dir);
}
} // namespace content