gfx/vr/VRDisplayClient.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef GFX_VR_DISPLAY_CLIENT_H
   8 #define GFX_VR_DISPLAY_CLIENT_H
   9
  10 #include "nsIScreen.h"
  11 #include "nsCOMPtr.h"
  12 #include "mozilla/Attributes.h"
  13 #include "mozilla/RefPtr.h"
  14 #include "mozilla/dom/VRDisplayBinding.h"
  15
  16 #include "gfxVR.h"
  17
  18 namespace mozilla {
  19 namespace gfx {
  20 class VRDisplayPresentation;
  21 class VRManagerChild;
  22
  23 class VRDisplayClient {
  24  public:
  25   NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayClient)
  26
  27   explicit VRDisplayClient(const VRDisplayInfo& aDisplayInfo);
  28
  29   MOZ_CAN_RUN_SCRIPT void UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo);
  30   void UpdateSubmitFrameResult(const VRSubmitFrameResultInfo& aResult);
  31
  32   const VRDisplayInfo& GetDisplayInfo() const { return mDisplayInfo; }
  33   virtual const VRHMDSensorState& GetSensorState() const;
  34   void GetSubmitFrameResult(VRSubmitFrameResultInfo& aResult);
  35
  36   already_AddRefed<VRDisplayPresentation> BeginPresentation(
  37       const nsTArray<dom::VRLayer>& aLayers, uint32_t aGroup);
  38   void PresentationDestroyed();
  39
  40   bool GetIsConnected() const;
  41
  42   void NotifyDisconnected();
  43   void SetGroupMask(uint32_t aGroupMask);
  44
  45   bool IsPresentationGenerationCurrent() const;
  46   void MakePresentationGenerationCurrent();
  47
  48   void StartVRNavigation();
  49   void StopVRNavigation(const TimeDuration& aTimeout);
  50
  51  protected:
  52   virtual ~VRDisplayClient();
  53
  54   MOZ_CAN_RUN_SCRIPT void FireEvents();
  55   void FireGamepadEvents();
  56
  57   VRDisplayInfo mDisplayInfo;
  58
  59   bool bLastEventWasMounted;
  60   bool bLastEventWasPresenting;
  61
  62   int mPresentationCount;
  63   uint64_t mLastEventFrameId;
  64   uint32_t mLastPresentingGeneration;
  65
  66   // Difference between mDisplayInfo.mControllerState and
  67   // mLastEventControllerState determines what gamepad events to fire when
  68   // updated.
  69   VRControllerState mLastEventControllerState[kVRControllerMaxCount];
  70
  71  private:
  72   VRSubmitFrameResultInfo mSubmitFrameResult;
  73 };
  74
  75 }  // namespace gfx
  76 }  // namespace mozilla
  77
  78 #endif /* GFX_VR_DISPLAY_CLIENT_H */