/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- * 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 #include "prlink.h" #include "prmem.h" #include "prenv.h" #include "gfxPrefs.h" #include "nsString.h" #include "mozilla/Preferences.h" #include "mozilla/Unused.h" #include "nsServiceManagerUtils.h" #include "nsIScreenManager.h" #ifdef XP_WIN #include "../layers/d3d11/CompositorD3D11.h" #endif #include "VRDisplayClient.h" #include "VRDisplayPresentation.h" #include "VRManagerChild.h" #include "VRLayerChild.h" using namespace mozilla; using namespace mozilla::gfx; VRDisplayClient::VRDisplayClient(const VRDisplayInfo& aDisplayInfo) : mDisplayInfo(aDisplayInfo) , bLastEventWasMounted(false) , bLastEventWasPresenting(false) , mPresentationCount(0) { MOZ_COUNT_CTOR(VRDisplayClient); } VRDisplayClient::~VRDisplayClient() { MOZ_COUNT_DTOR(VRDisplayClient); } void VRDisplayClient::UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo) { mDisplayInfo = aDisplayInfo; } already_AddRefed VRDisplayClient::BeginPresentation(const nsTArray& aLayers) { ++mPresentationCount; RefPtr presentation = new VRDisplayPresentation(this, aLayers); return presentation.forget(); } void VRDisplayClient::PresentationDestroyed() { --mPresentationCount; } void VRDisplayClient::ZeroSensor() { VRManagerChild *vm = VRManagerChild::Get(); vm->SendResetSensor(mDisplayInfo.mDisplayID); } VRHMDSensorState VRDisplayClient::GetSensorState() { VRHMDSensorState sensorState; VRManagerChild *vm = VRManagerChild::Get(); Unused << vm->SendGetSensorState(mDisplayInfo.mDisplayID, &sensorState); return sensorState; } const double kVRDisplayRAFMaxDuration = 32; // milliseconds void VRDisplayClient::NotifyVsync() { VRManagerChild *vm = VRManagerChild::Get(); bool isPresenting = GetIsPresenting(); bool bShouldCallback = !isPresenting; if (mLastVSyncTime.IsNull()) { bShouldCallback = true; } else { TimeDuration duration = TimeStamp::Now() - mLastVSyncTime; if (duration.ToMilliseconds() > kVRDisplayRAFMaxDuration) { bShouldCallback = true; } } if (bShouldCallback) { vm->RunFrameRequestCallbacks(); mLastVSyncTime = TimeStamp::Now(); } // Check if we need to trigger onVRDisplayPresentChange event if (bLastEventWasPresenting != isPresenting) { bLastEventWasPresenting = isPresenting; vm->FireDOMVRDisplayPresentChangeEvent(mDisplayInfo.mDisplayID); } // Check if we need to trigger onvrdisplayactivate event if (!bLastEventWasMounted && mDisplayInfo.mIsMounted) { bLastEventWasMounted = true; vm->FireDOMVRDisplayMountedEvent(mDisplayInfo.mDisplayID); } // Check if we need to trigger onvrdisplaydeactivate event if (bLastEventWasMounted && !mDisplayInfo.mIsMounted) { bLastEventWasMounted = false; vm->FireDOMVRDisplayUnmountedEvent(mDisplayInfo.mDisplayID); } } void VRDisplayClient::NotifyVRVsync() { VRManagerChild *vm = VRManagerChild::Get(); vm->RunFrameRequestCallbacks(); mLastVSyncTime = TimeStamp::Now(); } bool VRDisplayClient::GetIsConnected() const { return mDisplayInfo.GetIsConnected(); } bool VRDisplayClient::GetIsPresenting() const { return mDisplayInfo.GetIsPresenting(); } void VRDisplayClient::NotifyDisconnected() { mDisplayInfo.mIsConnected = false; }