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Diffstat (limited to 'gfx/vr/VRManager.h')
| -rw-r--r-- | gfx/vr/VRManager.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/gfx/vr/VRManager.h b/gfx/vr/VRManager.h new file mode 100644 index 0000000000..c7a5bb5f0d --- /dev/null +++ b/gfx/vr/VRManager.h @@ -0,0 +1,194 @@ +/* -*- 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/. */ + +#ifndef GFX_VR_MANAGER_H +#define GFX_VR_MANAGER_H + +#include "nsIObserver.h" +#include "nsTArray.h" +#include "nsTHashSet.h" +#include "nsThreadUtils.h" +#include "mozilla/Atomics.h" +#include "mozilla/dom/GamepadHandle.h" +#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor +#include "mozilla/Monitor.h" +#include "mozilla/TimeStamp.h" +#include "gfxVR.h" + +class nsITimer; +namespace mozilla { +namespace gfx { +class VRLayerParent; +class VRManagerParent; +class VRServiceHost; +class VRThread; +class VRShMem; + +enum class VRManagerState : uint32_t { + Disabled, // All VRManager activity is stopped + Idle, // No VR hardware has been activated, but background tasks are running + RuntimeDetection, // Waiting for detection of runtimes without starting up VR + // hardware + Enumeration, // Waiting for enumeration and startup of VR hardware + Active, // VR hardware is active + Stopping, // Waiting for the VRService to stop +}; + +class VRManager : nsIObserver { + public: + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSIOBSERVER + + static void ManagerInit(); + static VRManager* Get(); + static VRManager* MaybeGet(); + + void AddVRManagerParent(VRManagerParent* aVRManagerParent); + void RemoveVRManagerParent(VRManagerParent* aVRManagerParent); + + void NotifyVsync(const TimeStamp& aVsyncTimestamp); + + void DetectRuntimes(); + void EnumerateDevices(); + void StopAllHaptics(); + + void VibrateHaptic(mozilla::dom::GamepadHandle aGamepadHandle, + uint32_t aHapticIndex, double aIntensity, double aDuration, + const VRManagerPromise& aPromise); + void StopVibrateHaptic(mozilla::dom::GamepadHandle aGamepadHandle); + void NotifyVibrateHapticCompleted(const VRManagerPromise& aPromise); + void StartVRNavigation(const uint32_t& aDisplayID); + void StopVRNavigation(const uint32_t& aDisplayID, + const TimeDuration& aTimeout); + void Shutdown(); + void ShutdownVRManagerParents(); +#if !defined(MOZ_WIDGET_ANDROID) + bool RunPuppet(const nsTArray<uint64_t>& aBuffer, + VRManagerParent* aManagerParent); + void ResetPuppet(VRManagerParent* aManagerParent); + void NotifyPuppetComplete(); +#endif + void AddLayer(VRLayerParent* aLayer); + void RemoveLayer(VRLayerParent* aLayer); + void SetGroupMask(uint32_t aGroupMask); + void SubmitFrame(VRLayerParent* aLayer, + const layers::SurfaceDescriptor& aTexture, uint64_t aFrameId, + const gfx::Rect& aLeftEyeRect, + const gfx::Rect& aRightEyeRect); + bool IsPresenting(); + + private: + VRManager(); + virtual ~VRManager(); + void Destroy(); + void StartTasks(); + void StopTasks(); + static void TaskTimerCallback(nsITimer* aTimer, void* aClosure); + void RunTasks(); + void Run1msTasks(double aDeltaTime); + void Run10msTasks(); + void Run100msTasks(); + uint32_t GetOptimalTaskInterval(); + void ProcessManagerState(); + void ProcessManagerState_Disabled(); + void ProcessManagerState_Idle(); + void ProcessManagerState_Idle_StartRuntimeDetection(); + void ProcessManagerState_Idle_StartEnumeration(); + void ProcessManagerState_DetectRuntimes(); + void ProcessManagerState_Enumeration(); + void ProcessManagerState_Active(); + void ProcessManagerState_Stopping(); + void PullState(const std::function<bool()>& aWaitCondition = nullptr); + void PushState(const bool aNotifyCond = false); + static uint32_t AllocateDisplayID(); + void DispatchVRDisplayInfoUpdate(); + void DispatchRuntimeCapabilitiesUpdate(); + void UpdateRequestedDevices(); + void CheckForInactiveTimeout(); +#if !defined(MOZ_WIDGET_ANDROID) + void CheckForPuppetCompletion(); +#endif + void CheckForShutdown(); + void CheckWatchDog(); + void ExpireNavigationTransition(); + void OpenShmem(); + void CloseShmem(); + void UpdateHaptics(double aDeltaTime); + void ClearHapticSlot(size_t aSlot); + void StartFrame(); + void ShutdownSubmitThread(); + void StartPresentation(); + void StopPresentation(); + void CancelCurrentSubmitTask(); + + void SubmitFrameInternal(const layers::SurfaceDescriptor& aTexture, + uint64_t aFrameId, const gfx::Rect& aLeftEyeRect, + const gfx::Rect& aRightEyeRect); + bool SubmitFrame(const layers::SurfaceDescriptor& aTexture, uint64_t aFrameId, + const gfx::Rect& aLeftEyeRect, + const gfx::Rect& aRightEyeRect); + + Atomic<VRManagerState> mState; + typedef nsTHashSet<RefPtr<VRManagerParent>> VRManagerParentSet; + VRManagerParentSet mVRManagerParents; +#if !defined(MOZ_WIDGET_ANDROID) + VRManagerParentSet mManagerParentsWaitingForPuppetReset; + RefPtr<VRManagerParent> mManagerParentRunningPuppet; +#endif + // Weak reference to mLayers entries are cleared in + // VRLayerParent destructor + nsTArray<VRLayerParent*> mLayers; + + TimeStamp mLastDisplayEnumerationTime; + TimeStamp mLastActiveTime; + TimeStamp mLastTickTime; + TimeStamp mEarliestRestartTime; + TimeStamp mVRNavigationTransitionEnd; + TimeStamp mLastFrameStart[kVRMaxLatencyFrames]; + double mAccumulator100ms; + bool mRuntimeDetectionRequested; + bool mRuntimeDetectionCompleted; + bool mEnumerationRequested; + bool mEnumerationCompleted; + bool mVRDisplaysRequested; + bool mVRDisplaysRequestedNonFocus; + bool mVRControllersRequested; + bool mFrameStarted; + uint32_t mTaskInterval; + RefPtr<nsITimer> mTaskTimer; + mozilla::Monitor mCurrentSubmitTaskMonitor MOZ_UNANNOTATED; + RefPtr<CancelableRunnable> mCurrentSubmitTask; + uint64_t mLastSubmittedFrameId; + uint64_t mLastStartedFrame; + VRDisplayCapabilityFlags mRuntimeSupportFlags; + bool mAppPaused; + + // Note: mShmem doesn't support RefPtr; thus, do not share this private + // pointer so that its lifetime can still be controlled by VRManager + VRShMem* mShmem; + bool mVRProcessEnabled; + +#if !defined(MOZ_WIDGET_ANDROID) + RefPtr<VRServiceHost> mServiceHost; +#endif + + static Atomic<uint32_t> sDisplayBase; + RefPtr<VRThread> mSubmitThread; + VRTelemetry mTelemetry; + nsTArray<UniquePtr<VRManagerPromise>> mHapticPromises; + // Duration of haptic pulse time remaining (milliseconds) + double mHapticPulseRemaining[kVRHapticsMaxCount]; + + VRDisplayInfo mDisplayInfo; + VRDisplayInfo mLastUpdateDisplayInfo; + VRBrowserState mBrowserState; + VRHMDSensorState mLastSensorState; +}; + +} // namespace gfx +} // namespace mozilla + +#endif // GFX_VR_MANAGER_H |