1 files changed, 86 insertions, 0 deletions
diff --git a/gfx/vr/ipc/VRGPUChild.cpp b/gfx/vr/ipc/VRGPUChild.cpp
new file mode 100644
index 0000000000..793778c032
--- /dev/null
+++ b/gfx/vr/ipc/VRGPUChild.cpp
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "VRGPUChild.h"
+#include "VRServiceHost.h"
+
+#include "mozilla/ipc/Endpoint.h"
+#include "mozilla/layers/CompositorThread.h"
+#include "mozilla/StaticPrefs_dom.h"
+#include "VRManager.h"
+
+namespace mozilla {
+namespace gfx {
+
+static StaticRefPtr<VRGPUChild> sVRGPUChildSingleton;
+
+/* static */
+bool VRGPUChild::InitForGPUProcess(Endpoint<PVRGPUChild>&& aEndpoint) {
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(!sVRGPUChildSingleton);
+
+  if (!StaticPrefs::dom_vr_enabled() && !StaticPrefs::dom_vr_webxr_enabled()) {
+    return false;
+  }
+
+  RefPtr<VRGPUChild> child(new VRGPUChild());
+  if (!aEndpoint.Bind(child)) {
+    return false;
+  }
+  sVRGPUChildSingleton = child;
+
+#if !defined(MOZ_WIDGET_ANDROID)
+  RefPtr<Runnable> task = NS_NewRunnableFunction(
+      "VRServiceHost::NotifyVRProcessStarted", []() -> void {
+        VRServiceHost* host = VRServiceHost::Get();
+        host->NotifyVRProcessStarted();
+      });
+
+  NS_DispatchToMainThread(task.forget());
+#endif
+
+  return true;
+}
+
+/* static */
+bool VRGPUChild::IsCreated() { return !!sVRGPUChildSingleton; }
+
+/* static */
+VRGPUChild* VRGPUChild::Get() {
+  MOZ_ASSERT(IsCreated(), "VRGPUChild haven't initialized yet.");
+  return sVRGPUChildSingleton;
+}
+
+/*static*/
+void VRGPUChild::Shutdown() {
+  MOZ_ASSERT(NS_IsMainThread());
+  if (sVRGPUChildSingleton && !sVRGPUChildSingleton->IsClosed()) {
+    sVRGPUChildSingleton->Close();
+  }
+  sVRGPUChildSingleton = nullptr;
+}
+
+void VRGPUChild::ActorDestroy(ActorDestroyReason aWhy) {
+  VRManager* vm = VRManager::Get();
+  mozilla::layers::CompositorThread()->Dispatch(
+      NewRunnableMethod("VRGPUChild::ActorDestroy", vm, &VRManager::Shutdown));
+
+  mClosed = true;
+}
+
+mozilla::ipc::IPCResult VRGPUChild::RecvNotifyPuppetComplete() {
+#if !defined(MOZ_WIDGET_ANDROID)
+  VRManager* vm = VRManager::Get();
+  mozilla::layers::CompositorThread()->Dispatch(NewRunnableMethod(
+      "VRManager::NotifyPuppetComplete", vm, &VRManager::NotifyPuppetComplete));
+#endif
+  return IPC_OK();
+}
+
+bool VRGPUChild::IsClosed() { return mClosed; }
+
+}  // namespace gfx
+}  // namespace mozilla