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d0b2b8da65
- gfxVRExternal Enables other processes to present real or simulated VR hardware to Firefox. - This functionality is disabled by default, under dom.vr.external.enabled. - VRDisplayInfo, VRControllerInfo, and associated structs have been restructured to ensure internal state is not exposed via shmem interface. - Some refactoring to convert structs to POD types, enabling them to be located in shmem and be memcpy'd. - Work needed before unpreffing marked with "TODO" comments. MozReview-Commit-ID: FbsusbxuoQ8 --HG-- extra : rebase_source : 8a448169c3f47411c705a4d9fd462a1f9363dfd9 extra : amend_source : e6702549527292e2850d16e8f503f0be9848159f
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#ifndef GFX_VR_EXTERNAL_H
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#define GFX_VR_EXTERNAL_H
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#include "nsTArray.h"
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#include "nsIScreen.h"
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#include "nsCOMPtr.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/EnumeratedArray.h"
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#include "gfxVR.h"
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#include "VRDisplayHost.h"
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#if defined(XP_MACOSX)
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class MacIOSurface;
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#endif
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namespace mozilla {
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namespace gfx {
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class VRThread;
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namespace impl {
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class VRDisplayExternal : public VRDisplayHost
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{
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public:
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void ZeroSensor() override;
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protected:
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virtual VRHMDSensorState GetSensorState() override;
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virtual void StartPresentation() override;
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virtual void StopPresentation() override;
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#if defined(XP_WIN)
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virtual bool SubmitFrame(ID3D11Texture2D* aSource,
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const IntSize& aSize,
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const gfx::Rect& aLeftEyeRect,
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const gfx::Rect& aRightEyeRect) override;
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#elif defined(XP_MACOSX)
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virtual bool SubmitFrame(MacIOSurface* aMacIOSurface,
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const IntSize& aSize,
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const gfx::Rect& aLeftEyeRect,
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const gfx::Rect& aRightEyeRect) override;
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#endif
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public:
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explicit VRDisplayExternal(const VRDisplayState& aDisplayState);
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void Refresh();
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protected:
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virtual ~VRDisplayExternal();
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void Destroy();
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VRTelemetry mTelemetry;
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bool mIsPresenting;
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VRHMDSensorState mLastSensorState;
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};
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class VRControllerExternal : public VRControllerHost
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{
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public:
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explicit VRControllerExternal(dom::GamepadHand aHand, uint32_t aDisplayID, uint32_t aNumButtons,
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uint32_t aNumTriggers, uint32_t aNumAxes,
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const nsCString& aId);
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protected:
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virtual ~VRControllerExternal();
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};
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} // namespace impl
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class VRSystemManagerExternal : public VRSystemManager
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{
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public:
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static already_AddRefed<VRSystemManagerExternal> Create();
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virtual void Destroy() override;
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virtual void Shutdown() override;
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virtual void NotifyVSync() override;
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virtual void Enumerate() override;
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virtual bool ShouldInhibitEnumeration() override;
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virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult) override;
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virtual bool GetIsPresenting() override;
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virtual void HandleInput() override;
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virtual void GetControllers(nsTArray<RefPtr<VRControllerHost>>&
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aControllerResult) override;
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virtual void ScanForControllers() override;
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virtual void RemoveControllers() override;
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virtual void VibrateHaptic(uint32_t aControllerIdx,
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uint32_t aHapticIndex,
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double aIntensity,
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double aDuration,
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const VRManagerPromise& aPromise) override;
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virtual void StopVibrateHaptic(uint32_t aControllerIdx) override;
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void PullState(VRDisplayState* aDisplayState, VRHMDSensorState* aSensorState = nullptr);
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protected:
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VRSystemManagerExternal();
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virtual ~VRSystemManagerExternal();
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private:
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// there can only be one
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RefPtr<impl::VRDisplayExternal> mDisplay;
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nsTArray<RefPtr<impl::VRControllerExternal>> mExternalController;
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#if defined(XP_MACOSX)
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int mShmemFD;
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#elif defined(XP_WIN)
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HANDLE mShmemFile;
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#endif
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volatile VRExternalShmem* mExternalShmem;
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void OpenShmem();
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void CloseShmem();
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void CheckForShutdown();
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* GFX_VR_EXTERNAL_H */
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