gecko-dev/gfx/vr/gfxVROpenVR.h
Kearwood Gilbert d0b2b8da65 Bug 1436791 - Implement gfxVRExternal,r=rbarker
- 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
2018-03-13 17:09:54 -07:00

181 lines
6.0 KiB
C++

/* -*- 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_OPENVR_H
#define GFX_VR_OPENVR_H
#include "nsTArray.h"
#include "nsIScreen.h"
#include "nsCOMPtr.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/EnumeratedArray.h"
#include "openvr.h"
#include "gfxVR.h"
#include "VRDisplayHost.h"
#if defined(XP_MACOSX)
class MacIOSurface;
#endif
namespace mozilla {
namespace gfx {
class VRThread;
namespace impl {
class VRDisplayOpenVR : public VRDisplayHost
{
public:
void ZeroSensor() override;
bool GetIsHmdPresent();
protected:
virtual VRHMDSensorState GetSensorState() override;
virtual void StartPresentation() override;
virtual void StopPresentation() override;
#if defined(XP_WIN)
virtual bool SubmitFrame(ID3D11Texture2D* aSource,
const IntSize& aSize,
const gfx::Rect& aLeftEyeRect,
const gfx::Rect& aRightEyeRect) override;
#elif defined(XP_MACOSX)
virtual bool SubmitFrame(MacIOSurface* aMacIOSurface,
const IntSize& aSize,
const gfx::Rect& aLeftEyeRect,
const gfx::Rect& aRightEyeRect) override;
#endif
public:
explicit VRDisplayOpenVR(::vr::IVRSystem *aVRSystem,
::vr::IVRChaperone *aVRChaperone,
::vr::IVRCompositor *aVRCompositor);
void Refresh();
protected:
virtual ~VRDisplayOpenVR();
void Destroy();
// not owned by us; global from OpenVR
::vr::IVRSystem *mVRSystem;
::vr::IVRChaperone *mVRChaperone;
::vr::IVRCompositor *mVRCompositor;
VRTelemetry mTelemetry;
bool mIsPresenting;
bool mIsHmdPresent;
void UpdateStageParameters();
void UpdateEyeParameters(gfx::Matrix4x4* aHeadToEyeTransforms = nullptr);
bool SubmitFrame(void* aTextureHandle,
::vr::ETextureType aTextureType,
const IntSize& aSize,
const gfx::Rect& aLeftEyeRect,
const gfx::Rect& aRightEyeRect);
};
class VRControllerOpenVR : public VRControllerHost
{
public:
explicit VRControllerOpenVR(dom::GamepadHand aHand, uint32_t aDisplayID, uint32_t aNumButtons,
uint32_t aNumTriggers, uint32_t aNumAxes,
const nsCString& aId);
void SetTrackedIndex(uint32_t aTrackedIndex);
uint32_t GetTrackedIndex();
float GetAxisMove(uint32_t aAxis);
void SetAxisMove(uint32_t aAxis, float aValue);
void SetTrigger(uint32_t aButton, float aValue);
float GetTrigger(uint32_t aButton);
void SetHand(dom::GamepadHand aHand);
void VibrateHaptic(::vr::IVRSystem* aVRSystem,
uint32_t aHapticIndex,
double aIntensity,
double aDuration,
const VRManagerPromise& aPromise);
void StopVibrateHaptic();
void ShutdownVibrateHapticThread();
protected:
virtual ~VRControllerOpenVR();
private:
void UpdateVibrateHaptic(::vr::IVRSystem* aVRSystem,
uint32_t aHapticIndex,
double aIntensity,
double aDuration,
uint64_t aVibrateIndex,
const VRManagerPromise& aPromise);
void VibrateHapticComplete(const VRManagerPromise& aPromise);
// The index of tracked devices from ::vr::IVRSystem.
uint32_t mTrackedIndex;
RefPtr<VRThread> mVibrateThread;
Atomic<bool> mIsVibrateStopped;
};
} // namespace impl
class VRSystemManagerOpenVR : public VRSystemManager
{
public:
static already_AddRefed<VRSystemManagerOpenVR> Create();
virtual void Destroy() override;
virtual void Shutdown() override;
virtual void NotifyVSync() override;
virtual void Enumerate() override;
virtual bool ShouldInhibitEnumeration() override;
virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost>>& aHMDResult) override;
virtual bool GetIsPresenting() override;
virtual void HandleInput() override;
virtual void GetControllers(nsTArray<RefPtr<VRControllerHost>>&
aControllerResult) override;
virtual void ScanForControllers() override;
virtual void RemoveControllers() override;
virtual void VibrateHaptic(uint32_t aControllerIdx,
uint32_t aHapticIndex,
double aIntensity,
double aDuration,
const VRManagerPromise& aPromise) override;
virtual void StopVibrateHaptic(uint32_t aControllerIdx) override;
protected:
VRSystemManagerOpenVR();
private:
void HandleButtonPress(uint32_t aControllerIdx,
uint32_t aButton,
uint64_t aButtonMask,
uint64_t aButtonPressed,
uint64_t aButtonTouched);
void HandleTriggerPress(uint32_t aControllerIdx,
uint32_t aButton,
uint32_t aTrigger,
float aValue);
void HandleAxisMove(uint32_t aControllerIdx, uint32_t aAxis,
float aValue);
void HandlePoseTracking(uint32_t aControllerIdx,
const dom::GamepadPoseState& aPose,
VRControllerHost* aController);
dom::GamepadHand GetGamepadHandFromControllerRole(
::vr::ETrackedControllerRole aRole);
void GetControllerDeviceId(::vr::ETrackedDeviceClass aDeviceType,
::vr::TrackedDeviceIndex_t aDeviceIndex,
nsCString& aId);
// there can only be one
RefPtr<impl::VRDisplayOpenVR> mOpenVRHMD;
nsTArray<RefPtr<impl::VRControllerOpenVR>> mOpenVRController;
::vr::IVRSystem *mVRSystem;
bool mIsWindowsMR;
};
} // namespace gfx
} // namespace mozilla
#endif /* GFX_VR_OPENVR_H */