GpuArcVideoService

chrome/browser/chromeos/arc/gpu_arc_video_service_host.cc

+// Copyright 2016 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 "chrome/browser/chromeos/arc/gpu_arc_video_service_host.h"
+
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/message_loop/message_loop.h"
+#include "base/thread_task_runner_handle.h"
+#include "content/public/browser/browser_thread.h"
+#include "content/public/browser/gpu_service_registry.h"
+#include "content/public/common/service_registry.h"
+
+namespace {
+
+mojo::InterfacePtrInfo<arc::VideoHost> GetServiceOnIOThread() {
+  arc::VideoHostPtr host_ptr;
+  content::ServiceRegistry* registry = content::GetGpuServiceRegistry();
+  registry->ConnectToRemoteService<arc::VideoHost>(mojo::GetProxy(&host_ptr));

[dcheng, 2016/03/24 20:29:14]

Shouldn't this autodeduce?

[kcwu, 2016/03/28 13:17:34]

Done.

+
+  // Unbind and reply back to UI thread.
+  return host_ptr.PassInterface();
+}
+
+}  // namespace
+
+namespace arc {
+
+GpuArcVideoServiceHost::GpuArcVideoServiceHost(
+    arc::ArcBridgeService* bridge_service)
+    : ArcService(bridge_service), binding_(this), weak_factory_(this) {
+  arc_bridge_service()->AddObserver(this);
+}
+
+GpuArcVideoServiceHost::~GpuArcVideoServiceHost() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  arc_bridge_service()->RemoveObserver(this);
+}
+
+void GpuArcVideoServiceHost::OnVideoInstanceReady() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  auto video_instance = arc_bridge_service()->video_instance();
+  DCHECK(video_instance);
+  video_instance->Init(binding_.CreateInterfacePtrAndBind());
+}
+
+void GpuArcVideoServiceHost::OnVideoInstanceClosed() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  service_ptr_.reset();
+}
+
+void GpuArcVideoServiceHost::OnRequestArcVideoAcceleratorChannel(
+    uint32_t pid,
+    const OnRequestArcVideoAcceleratorChannelCallback& callback) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  content::BrowserThread::PostTaskAndReplyWithResult(
+      content::BrowserThread::IO, FROM_HERE, base::Bind(&GetServiceOnIOThread),
+      base::Bind(&GpuArcVideoServiceHost::BindServiceAndCreateChannel,
+                 weak_factory_.GetWeakPtr(), pid, callback));
+}
+
+void GpuArcVideoServiceHost::BindServiceAndCreateChannel(
+    uint32_t pid,
+    const OnRequestArcVideoAcceleratorChannelCallback& callback,
+    mojo::InterfacePtrInfo<arc::VideoHost> ptr_info) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  service_ptr_.Bind(std::move(ptr_info));
+  service_ptr_->OnRequestArcVideoAcceleratorChannel(pid, callback);
+}
+
+}  // namespace arc