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/* -*- 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 MOZILLA_GFX_VR_VRMANAGERCHILD_H
#define MOZILLA_GFX_VR_VRMANAGERCHILD_H
#include "nsISupportsImpl.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/AnimationFrameProviderBinding.h"
#include "mozilla/dom/WebXRBinding.h"
#include "mozilla/dom/XRFrame.h"
#include "mozilla/gfx/PVRManagerChild.h"
#include "mozilla/ipc/SharedMemory.h" // for SharedMemory, etc
#include "mozilla/layers/ISurfaceAllocator.h" // for ISurfaceAllocator
#include "mozilla/layers/LayersTypes.h" // for LayersBackend
namespace mozilla {
namespace dom {
class Promise;
class GamepadManager;
class Navigator;
class VRDisplay;
class FrameRequestCallback;
} // namespace dom
namespace gfx {
class VRLayerChild;
class VRDisplayClient;
class VRManagerEventObserver {
public:
NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
virtual void NotifyVRDisplayMounted(uint32_t aDisplayID) = 0;
virtual void NotifyVRDisplayUnmounted(uint32_t aDisplayID) = 0;
virtual void NotifyVRDisplayConnect(uint32_t aDisplayID) = 0;
virtual void NotifyVRDisplayDisconnect(uint32_t aDisplayID) = 0;
virtual void NotifyVRDisplayPresentChange(uint32_t aDisplayID) = 0;
virtual void NotifyPresentationGenerationChanged(uint32_t aDisplayID) = 0;
virtual bool GetStopActivityStatus() const = 0;
virtual void NotifyEnumerationCompleted() = 0;
virtual void NotifyDetectRuntimesCompleted() = 0;
protected:
virtual ~VRManagerEventObserver() = default;
};
class VRManagerChild : public PVRManagerChild {
friend class PVRManagerChild;
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(VRManagerChild, override);
static VRManagerChild* Get();
// Indicate that an observer wants to receive VR events.
void AddListener(VRManagerEventObserver* aObserver);
// Indicate that an observer should no longer receive VR events.
void RemoveListener(VRManagerEventObserver* aObserver);
void StartActivity();
void StopActivity();
bool RuntimeSupportsVR() const;
bool RuntimeSupportsAR() const;
bool RuntimeSupportsInline() const;
void GetVRDisplays(nsTArray<RefPtr<VRDisplayClient>>& aDisplays);
bool RefreshVRDisplaysWithCallback(uint64_t aWindowId);
bool EnumerateVRDisplays();
void DetectRuntimes();
void AddPromise(const uint32_t& aID, dom::Promise* aPromise);
gfx::VRAPIMode GetVRAPIMode(uint32_t aDisplayID) const;
static void InitSameProcess();
static void InitWithGPUProcess(Endpoint<PVRManagerChild>&& aEndpoint);
static bool InitForContent(Endpoint<PVRManagerChild>&& aEndpoint);
static void ShutDown();
static bool IsCreated();
static bool IsPresenting();
static TimeStamp GetIdleDeadlineHint(TimeStamp aDefault);
PVRLayerChild* CreateVRLayer(uint32_t aDisplayID, uint32_t aGroup);
static void IdentifyTextureHost(
const layers::TextureFactoryIdentifier& aIdentifier);
layers::LayersBackend GetBackendType() const;
nsresult ScheduleFrameRequestCallback(dom::FrameRequestCallback& aCallback,
int32_t* aHandle);
void CancelFrameRequestCallback(int32_t aHandle);
MOZ_CAN_RUN_SCRIPT
void RunFrameRequestCallbacks();
void NotifyPresentationGenerationChanged(uint32_t aDisplayID);
MOZ_CAN_RUN_SCRIPT
void UpdateDisplayInfo(const VRDisplayInfo& aDisplayInfo);
void FireDOMVRDisplayMountedEvent(uint32_t aDisplayID);
void FireDOMVRDisplayUnmountedEvent(uint32_t aDisplayID);
void FireDOMVRDisplayConnectEvent(uint32_t aDisplayID);
void FireDOMVRDisplayDisconnectEvent(uint32_t aDisplayID);
void FireDOMVRDisplayPresentChangeEvent(uint32_t aDisplayID);
void FireDOMVRDisplayConnectEventsForLoad(VRManagerEventObserver* aObserver);
void HandleFatalError(const char* aMsg) override;
void ActorDestroy(ActorDestroyReason aReason) override;
void RunPuppet(const nsTArray<uint64_t>& aBuffer, dom::Promise* aPromise,
ErrorResult& aRv);
void ResetPuppet(dom::Promise* aPromise, ErrorResult& aRv);
protected:
explicit VRManagerChild();
~VRManagerChild();
PVRLayerChild* AllocPVRLayerChild(const uint32_t& aDisplayID,
const uint32_t& aGroup);
bool DeallocPVRLayerChild(PVRLayerChild* actor);
// MOZ_CAN_RUN_SCRIPT_BOUNDARY until we can mark ipdl-generated things as
// MOZ_CAN_RUN_SCRIPT.
MOZ_CAN_RUN_SCRIPT_BOUNDARY
mozilla::ipc::IPCResult RecvUpdateDisplayInfo(
const VRDisplayInfo& aDisplayInfo);
mozilla::ipc::IPCResult RecvUpdateRuntimeCapabilities(
const VRDisplayCapabilityFlags& aCapabilities);
mozilla::ipc::IPCResult RecvReplyGamepadVibrateHaptic(
const uint32_t& aPromiseID);
MOZ_CAN_RUN_SCRIPT_BOUNDARY
mozilla::ipc::IPCResult RecvNotifyPuppetCommandBufferCompleted(bool aSuccess);
MOZ_CAN_RUN_SCRIPT_BOUNDARY
mozilla::ipc::IPCResult RecvNotifyPuppetResetComplete();
bool IsSameProcess() const { return OtherPid() == base::GetCurrentProcId(); }
private:
void FireDOMVRDisplayMountedEventInternal(uint32_t aDisplayID);
void FireDOMVRDisplayUnmountedEventInternal(uint32_t aDisplayID);
void FireDOMVRDisplayConnectEventInternal(uint32_t aDisplayID);
void FireDOMVRDisplayDisconnectEventInternal(uint32_t aDisplayID);
void FireDOMVRDisplayPresentChangeEventInternal(uint32_t aDisplayID);
void FireDOMVRDisplayConnectEventsForLoadInternal(
uint32_t aDisplayID, VRManagerEventObserver* aObserver);
void NotifyPresentationGenerationChangedInternal(uint32_t aDisplayID);
void NotifyEnumerationCompletedInternal();
void NotifyRuntimeCapabilitiesUpdatedInternal();
nsTArray<RefPtr<VRDisplayClient>> mDisplays;
VRDisplayCapabilityFlags mRuntimeCapabilities;
bool mDisplaysInitialized;
nsTArray<uint64_t> mNavigatorCallbacks;
struct XRFrameRequest {
XRFrameRequest(mozilla::dom::FrameRequestCallback& aCallback,
int32_t aHandle)
: mCallback(&aCallback), mHandle(aHandle) {}
XRFrameRequest(mozilla::dom::XRFrameRequestCallback& aCallback,
mozilla::dom::XRFrame& aFrame, int32_t aHandle)
: mXRCallback(&aCallback), mXRFrame(&aFrame), mHandle(aHandle) {}
MOZ_CAN_RUN_SCRIPT
void Call(const DOMHighResTimeStamp& aTimeStamp);
// Comparator operators to allow RemoveElementSorted with an
// integer argument on arrays of XRFrameRequest
bool operator==(int32_t aHandle) const { return mHandle == aHandle; }
bool operator<(int32_t aHandle) const { return mHandle < aHandle; }
RefPtr<mozilla::dom::FrameRequestCallback> mCallback;
RefPtr<mozilla::dom::XRFrameRequestCallback> mXRCallback;
RefPtr<mozilla::dom::XRFrame> mXRFrame;
int32_t mHandle;
};
nsTArray<XRFrameRequest> mFrameRequestCallbacks;
/**
* The current frame request callback handle
*/
int32_t mFrameRequestCallbackCounter;
mozilla::TimeStamp mStartTimeStamp;
nsTArray<RefPtr<VRManagerEventObserver>> mListeners;
bool mWaitingForEnumeration;
layers::LayersBackend mBackend;
nsRefPtrHashtable<nsUint32HashKey, dom::Promise> mGamepadPromiseList;
RefPtr<dom::Promise> mRunPuppetPromise;
nsTArray<RefPtr<dom::Promise>> mResetPuppetPromises;
DISALLOW_COPY_AND_ASSIGN(VRManagerChild);
};
} // namespace gfx
} // namespace mozilla
#endif // MOZILLA_GFX_VR_VRMANAGERCHILD_H
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