зеркало из https://github.com/mozilla/gecko-dev.git
144 строки
3.3 KiB
C++
144 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include <math.h>
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#include "prlink.h"
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#include "prmem.h"
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#include "prenv.h"
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#include "gfxPrefs.h"
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#include "nsString.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Unused.h"
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#include "nsServiceManagerUtils.h"
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#include "nsIScreenManager.h"
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#ifdef XP_WIN
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#include "../layers/d3d11/CompositorD3D11.h"
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#endif
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#include "VRDisplayClient.h"
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#include "VRDisplayPresentation.h"
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#include "VRManagerChild.h"
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#include "VRLayerChild.h"
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using namespace mozilla;
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using namespace mozilla::gfx;
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VRDisplayClient::VRDisplayClient(const VRDisplayInfo& aDisplayInfo)
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: mDisplayInfo(aDisplayInfo)
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, bLastEventWasPresenting(false)
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, mPresentationCount(0)
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{
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MOZ_COUNT_CTOR(VRDisplayClient);
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}
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VRDisplayClient::~VRDisplayClient() {
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MOZ_COUNT_DTOR(VRDisplayClient);
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}
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void
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VRDisplayClient::UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo)
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{
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mDisplayInfo = aDisplayInfo;
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}
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already_AddRefed<VRDisplayPresentation>
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VRDisplayClient::BeginPresentation(const nsTArray<mozilla::dom::VRLayer>& aLayers)
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{
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++mPresentationCount;
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RefPtr<VRDisplayPresentation> presentation = new VRDisplayPresentation(this, aLayers);
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return presentation.forget();
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}
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void
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VRDisplayClient::PresentationDestroyed()
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{
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--mPresentationCount;
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}
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void
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VRDisplayClient::ZeroSensor()
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{
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VRManagerChild *vm = VRManagerChild::Get();
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vm->SendResetSensor(mDisplayInfo.mDisplayID);
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}
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VRHMDSensorState
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VRDisplayClient::GetSensorState()
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{
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VRHMDSensorState sensorState;
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VRManagerChild *vm = VRManagerChild::Get();
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Unused << vm->SendGetSensorState(mDisplayInfo.mDisplayID, &sensorState);
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return sensorState;
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}
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VRHMDSensorState
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VRDisplayClient::GetImmediateSensorState()
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{
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VRHMDSensorState sensorState;
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VRManagerChild *vm = VRManagerChild::Get();
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Unused << vm->SendGetImmediateSensorState(mDisplayInfo.mDisplayID, &sensorState);
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return sensorState;
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}
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const double kVRDisplayRAFMaxDuration = 32; // milliseconds
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void
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VRDisplayClient::NotifyVsync()
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{
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VRManagerChild *vm = VRManagerChild::Get();
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bool isPresenting = GetIsPresenting();
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bool bShouldCallback = !isPresenting;
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if (mLastVSyncTime.IsNull()) {
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bShouldCallback = true;
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} else {
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TimeDuration duration = TimeStamp::Now() - mLastVSyncTime;
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if (duration.ToMilliseconds() > kVRDisplayRAFMaxDuration) {
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bShouldCallback = true;
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}
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}
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if (bShouldCallback) {
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vm->RunFrameRequestCallbacks();
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mLastVSyncTime = TimeStamp::Now();
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}
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// Check if we need to trigger onVRDisplayPresentChange event
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if (bLastEventWasPresenting != isPresenting) {
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bLastEventWasPresenting = isPresenting;
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vm->FireDOMVRDisplayPresentChangeEvent();
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}
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}
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void
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VRDisplayClient::NotifyVRVsync()
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{
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VRManagerChild *vm = VRManagerChild::Get();
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vm->RunFrameRequestCallbacks();
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mLastVSyncTime = TimeStamp::Now();
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}
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bool
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VRDisplayClient::GetIsConnected() const
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{
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return mDisplayInfo.GetIsConnected();
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}
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bool
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VRDisplayClient::GetIsPresenting() const
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{
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return mDisplayInfo.GetIsPresenting();
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}
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void
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VRDisplayClient::NotifyDisconnected()
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{
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mDisplayInfo.mIsConnected = false;
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}
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