Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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