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-rw-r--r--gfx/vr/VRDisplayHost.h114
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diff --git a/gfx/vr/VRDisplayHost.h b/gfx/vr/VRDisplayHost.h
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-/* -*- 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/. */
-
-#ifndef GFX_VR_DISPLAY_HOST_H
-#define GFX_VR_DISPLAY_HOST_H
-
-#include "gfxVR.h"
-#include "nsTArray.h"
-#include "nsString.h"
-#include "nsCOMPtr.h"
-#include "mozilla/RefPtr.h"
-#include "mozilla/gfx/2D.h"
-#include "mozilla/Atomics.h"
-#include "mozilla/EnumeratedArray.h"
-#include "mozilla/TimeStamp.h"
-#include "mozilla/TypedEnumBits.h"
-#include "mozilla/dom/GamepadPoseState.h"
-
-namespace mozilla {
-namespace layers {
-class PTextureParent;
-#if defined(XP_WIN)
-class TextureSourceD3D11;
-#endif
-} // namespace layers
-namespace gfx {
-class VRLayerParent;
-
-class VRDisplayHost {
-public:
- NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRDisplayHost)
-
- const VRDisplayInfo& GetDisplayInfo() const { return mDisplayInfo; }
-
- void AddLayer(VRLayerParent* aLayer);
- void RemoveLayer(VRLayerParent* aLayer);
-
- virtual VRHMDSensorState GetSensorState() = 0;
- virtual VRHMDSensorState GetImmediateSensorState() = 0;
- virtual void ZeroSensor() = 0;
- virtual void StartPresentation() = 0;
- virtual void StopPresentation() = 0;
- virtual void NotifyVSync() { };
-
- void SubmitFrame(VRLayerParent* aLayer,
- const int32_t& aInputFrameID,
- mozilla::layers::PTextureParent* aTexture,
- const gfx::Rect& aLeftEyeRect,
- const gfx::Rect& aRightEyeRect);
-
- bool CheckClearDisplayInfoDirty();
-
-protected:
- explicit VRDisplayHost(VRDeviceType aType);
- virtual ~VRDisplayHost();
-
-#if defined(XP_WIN)
- virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
- const IntSize& aSize,
- const VRHMDSensorState& aSensorState,
- const gfx::Rect& aLeftEyeRect,
- const gfx::Rect& aRightEyeRect) = 0;
-#endif
-
- VRDisplayInfo mDisplayInfo;
-
- nsTArray<RefPtr<VRLayerParent>> mLayers;
- // Weak reference to mLayers entries are cleared in VRLayerParent destructor
-
- // The maximum number of frames of latency that we would expect before we
- // should give up applying pose prediction.
- // If latency is greater than one second, then the experience is not likely
- // to be corrected by pose prediction. Setting this value too
- // high may result in unnecessary memory allocation.
- // As the current fastest refresh rate is 90hz, 100 is selected as a
- // conservative value.
- static const int kMaxLatencyFrames = 100;
- VRHMDSensorState mLastSensorState[kMaxLatencyFrames];
- int32_t mInputFrameID;
-
-private:
- VRDisplayInfo mLastUpdateDisplayInfo;
-};
-
-class VRControllerHost {
-public:
- NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRControllerHost)
-
- const VRControllerInfo& GetControllerInfo() const;
- void SetIndex(uint32_t aIndex);
- uint32_t GetIndex();
- void SetButtonPressed(uint64_t aBit);
- uint64_t GetButtonPressed();
- void SetPose(const dom::GamepadPoseState& aPose);
- const dom::GamepadPoseState& GetPose();
-
-protected:
- explicit VRControllerHost(VRDeviceType aType);
- virtual ~VRControllerHost();
-
- VRControllerInfo mControllerInfo;
- // The controller index in VRControllerManager.
- uint32_t mIndex;
- // The current button pressed bit of button mask.
- uint64_t mButtonPressed;
- dom::GamepadPoseState mPose;
-};
-
-} // namespace gfx
-} // namespace mozilla
-
-#endif /* GFX_VR_DISPLAY_HOST_H */