tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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VRGPUChild.cpp (2407B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "VRGPUChild.h"
      8 #include "VRServiceHost.h"
      9 
     10 #include "mozilla/ipc/Endpoint.h"
     11 #include "mozilla/layers/CompositorThread.h"
     12 #include "mozilla/StaticPrefs_dom.h"
     13 #include "VRManager.h"
     14 
     15 namespace mozilla {
     16 namespace gfx {
     17 
     18 static StaticRefPtr<VRGPUChild> sVRGPUChildSingleton;
     19 
     20 /* static */
     21 bool VRGPUChild::InitForGPUProcess(Endpoint<PVRGPUChild>&& aEndpoint) {
     22  MOZ_ASSERT(NS_IsMainThread());
     23  MOZ_ASSERT(!sVRGPUChildSingleton);
     24 
     25  if (!StaticPrefs::dom_vr_enabled() && !StaticPrefs::dom_vr_webxr_enabled()) {
     26    return false;
     27  }
     28 
     29  RefPtr<VRGPUChild> child(new VRGPUChild());
     30  if (!aEndpoint.Bind(child)) {
     31    return false;
     32  }
     33  sVRGPUChildSingleton = child;
     34 
     35 #if !defined(MOZ_WIDGET_ANDROID)
     36  RefPtr<Runnable> task = NS_NewRunnableFunction(
     37      "VRServiceHost::NotifyVRProcessStarted", []() -> void {
     38        VRServiceHost* host = VRServiceHost::Get();
     39        host->NotifyVRProcessStarted();
     40      });
     41 
     42  NS_DispatchToMainThread(task.forget());
     43 #endif
     44 
     45  return true;
     46 }
     47 
     48 /* static */
     49 bool VRGPUChild::IsCreated() { return !!sVRGPUChildSingleton; }
     50 
     51 /* static */
     52 VRGPUChild* VRGPUChild::Get() {
     53  MOZ_ASSERT(IsCreated(), "VRGPUChild haven't initialized yet.");
     54  return sVRGPUChildSingleton;
     55 }
     56 
     57 /*static*/
     58 void VRGPUChild::Shutdown() {
     59  MOZ_ASSERT(NS_IsMainThread());
     60  if (sVRGPUChildSingleton && !sVRGPUChildSingleton->IsClosed()) {
     61    sVRGPUChildSingleton->Close();
     62  }
     63  sVRGPUChildSingleton = nullptr;
     64 }
     65 
     66 void VRGPUChild::ActorDestroy(ActorDestroyReason aWhy) {
     67  VRManager* vm = VRManager::Get();
     68  mozilla::layers::CompositorThread()->Dispatch(
     69      NewRunnableMethod("VRGPUChild::ActorDestroy", vm, &VRManager::Shutdown));
     70 
     71  mClosed = true;
     72 }
     73 
     74 mozilla::ipc::IPCResult VRGPUChild::RecvNotifyPuppetComplete() {
     75 #if !defined(MOZ_WIDGET_ANDROID)
     76  VRManager* vm = VRManager::Get();
     77  mozilla::layers::CompositorThread()->Dispatch(NewRunnableMethod(
     78      "VRManager::NotifyPuppetComplete", vm, &VRManager::NotifyPuppetComplete));
     79 #endif
     80  return IPC_OK();
     81 }
     82 
     83 bool VRGPUChild::IsClosed() { return mClosed; }
     84 
     85 }  // namespace gfx
     86 }  // namespace mozilla