gecko-dev/dom/vr/VRDevice.h
2015-09-17 14:23:13 -07:00

318 lines
9.2 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 mozilla_dom_VRDevice_h_
#define mozilla_dom_VRDevice_h_
#include <stdint.h>
#include "mozilla/ErrorResult.h"
#include "mozilla/dom/TypedArray.h"
#include "mozilla/dom/VRDeviceBinding.h"
#include "mozilla/dom/DOMPoint.h"
#include "mozilla/dom/DOMRect.h"
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsTArray.h"
#include "nsWrapperCache.h"
#include "gfxVR.h"
#include "VRDeviceProxy.h"
namespace mozilla {
namespace dom {
class Navigator;
class VRFieldOfViewReadOnly : public nsWrapperCache
{
public:
VRFieldOfViewReadOnly(nsISupports* aParent,
double aUpDegrees, double aRightDegrees,
double aDownDegrees, double aLeftDegrees)
: mParent(aParent)
, mUpDegrees(aUpDegrees)
, mRightDegrees(aRightDegrees)
, mDownDegrees(aDownDegrees)
, mLeftDegrees(aLeftDegrees)
{
}
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRFieldOfViewReadOnly)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRFieldOfViewReadOnly)
double UpDegrees() const { return mUpDegrees; }
double RightDegrees() const { return mRightDegrees; }
double DownDegrees() const { return mDownDegrees; }
double LeftDegrees() const { return mLeftDegrees; }
nsISupports* GetParentObject() const { return mParent; }
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
virtual ~VRFieldOfViewReadOnly() {}
nsCOMPtr<nsISupports> mParent;
double mUpDegrees;
double mRightDegrees;
double mDownDegrees;
double mLeftDegrees;
};
class VRFieldOfView final : public VRFieldOfViewReadOnly
{
public:
VRFieldOfView(nsISupports* aParent, const gfx::VRFieldOfView& aSrc)
: VRFieldOfViewReadOnly(aParent,
aSrc.upDegrees, aSrc.rightDegrees,
aSrc.downDegrees, aSrc.leftDegrees)
{}
explicit VRFieldOfView(nsISupports* aParent,
double aUpDegrees = 0.0, double aRightDegrees = 0.0,
double aDownDegrees = 0.0, double aLeftDegrees = 0.0)
: VRFieldOfViewReadOnly(aParent,
aUpDegrees, aRightDegrees, aDownDegrees, aLeftDegrees)
{}
static already_AddRefed<VRFieldOfView>
Constructor(const GlobalObject& aGlobal, const VRFieldOfViewInit& aParams,
ErrorResult& aRv);
static already_AddRefed<VRFieldOfView>
Constructor(const GlobalObject& aGlobal,
double aUpDegrees, double aRightDegrees,
double aDownDegrees, double aLeftDegrees,
ErrorResult& aRv);
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
void SetUpDegrees(double aVal) { mUpDegrees = aVal; }
void SetRightDegrees(double aVal) { mRightDegrees = aVal; }
void SetDownDegrees(double aVal) { mDownDegrees = aVal; }
void SetLeftDegrees(double aVal) { mLeftDegrees = aVal; }
};
class VRPositionState final : public nsWrapperCache
{
~VRPositionState() {}
public:
VRPositionState(nsISupports* aParent, const gfx::VRHMDSensorState& aState);
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VRPositionState)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VRPositionState)
double TimeStamp() const { return mTimeStamp; }
bool HasPosition() const { return mPosition != nullptr; }
DOMPoint* GetPosition() const { return mPosition; }
bool HasOrientation() const { return mOrientation != nullptr; }
DOMPoint* GetOrientation() const { return mOrientation; }
// these are created lazily
DOMPoint* GetLinearVelocity();
DOMPoint* GetLinearAcceleration();
DOMPoint* GetAngularVelocity();
DOMPoint* GetAngularAcceleration();
nsISupports* GetParentObject() const { return mParent; }
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
nsCOMPtr<nsISupports> mParent;
double mTimeStamp;
gfx::VRHMDSensorState mVRState;
RefPtr<DOMPoint> mPosition;
RefPtr<DOMPoint> mLinearVelocity;
RefPtr<DOMPoint> mLinearAcceleration;
RefPtr<DOMPoint> mOrientation;
RefPtr<DOMPoint> mAngularVelocity;
RefPtr<DOMPoint> mAngularAcceleration;
};
class VREyeParameters final : public nsWrapperCache
{
public:
VREyeParameters(nsISupports* aParent,
const gfx::VRFieldOfView& aMinFOV,
const gfx::VRFieldOfView& aMaxFOV,
const gfx::VRFieldOfView& aRecFOV,
const gfx::Point3D& aEyeTranslation,
const gfx::VRFieldOfView& aCurFOV,
const gfx::IntRect& aRenderRect);
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(VREyeParameters)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(VREyeParameters)
VRFieldOfView* MinimumFieldOfView();
VRFieldOfView* MaximumFieldOfView();
VRFieldOfView* RecommendedFieldOfView();
DOMPoint* EyeTranslation();
VRFieldOfView* CurrentFieldOfView();
DOMRect* RenderRect();
nsISupports* GetParentObject() const { return mParent; }
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
~VREyeParameters() {}
nsCOMPtr<nsISupports> mParent;
RefPtr<VRFieldOfView> mMinFOV;
RefPtr<VRFieldOfView> mMaxFOV;
RefPtr<VRFieldOfView> mRecFOV;
RefPtr<DOMPoint> mEyeTranslation;
RefPtr<VRFieldOfView> mCurFOV;
RefPtr<DOMRect> mRenderRect;
};
class VRDevice : public nsISupports,
public nsWrapperCache
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(VRDevice)
void GetHardwareUnitId(nsAString& aHWID) const { aHWID = mHWID; }
void GetDeviceId(nsAString& aDeviceId) const { aDeviceId = mDeviceId; }
void GetDeviceName(nsAString& aDeviceName) const { aDeviceName = mDeviceName; }
bool IsValid() { return mValid; }
nsISupports* GetParentObject() const
{
return mParent;
}
enum VRDeviceType {
HMD,
PositionSensor
};
VRDeviceType GetType() const { return mType; }
static bool RefreshVRDevices(dom::Navigator* aNavigator);
static void UpdateVRDevices(nsTArray<RefPtr<VRDevice> >& aDevices,
nsISupports* aParent);
gfx::VRDeviceProxy *GetHMD() {
return mHMD;
}
protected:
VRDevice(nsISupports* aParent,
gfx::VRDeviceProxy* aHMD,
VRDeviceType aType)
: mParent(aParent)
, mHMD(aHMD)
, mType(aType)
, mValid(false)
{
MOZ_COUNT_CTOR(VRDevice);
mHWID.AssignLiteral("uknown");
mDeviceId.AssignLiteral("unknown");
mDeviceName.AssignLiteral("unknown");
}
virtual ~VRDevice()
{
MOZ_COUNT_DTOR(VRDevice);
}
nsCOMPtr<nsISupports> mParent;
RefPtr<gfx::VRDeviceProxy> mHMD;
nsString mHWID;
nsString mDeviceId;
nsString mDeviceName;
VRDeviceType mType;
bool mValid;
};
class HMDVRDevice : public VRDevice
{
public:
virtual already_AddRefed<VREyeParameters> GetEyeParameters(VREye aEye) = 0;
virtual void SetFieldOfView(const VRFieldOfViewInit& aLeftFOV,
const VRFieldOfViewInit& aRightFOV,
double zNear, double zFar) = 0;
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
HMDVRDevice(nsISupports* aParent, gfx::VRDeviceProxy* aHMD)
: VRDevice(aParent, aHMD, VRDevice::HMD)
{
MOZ_COUNT_CTOR_INHERITED(HMDVRDevice, VRDevice);
}
virtual ~HMDVRDevice()
{
MOZ_COUNT_DTOR_INHERITED(HMDVRDevice, VRDevice);
}
};
class HMDInfoVRDevice : public HMDVRDevice
{
public:
HMDInfoVRDevice(nsISupports* aParent, gfx::VRDeviceProxy* aHMD);
virtual ~HMDInfoVRDevice();
/* If a field of view that is set to all 0's is passed in,
* the recommended field of view for that eye is used.
*/
virtual void SetFieldOfView(const VRFieldOfViewInit& aLeftFOV,
const VRFieldOfViewInit& aRightFOV,
double zNear, double zFar) override;
virtual already_AddRefed<VREyeParameters> GetEyeParameters(VREye aEye) override;
};
class PositionSensorVRDevice : public VRDevice
{
public:
virtual already_AddRefed<VRPositionState> GetState() = 0;
virtual already_AddRefed<VRPositionState> GetImmediateState() = 0;
virtual void ResetSensor() = 0;
virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
protected:
explicit PositionSensorVRDevice(nsISupports* aParent, gfx::VRDeviceProxy* aHMD)
: VRDevice(aParent, aHMD, VRDevice::PositionSensor)
{
MOZ_COUNT_CTOR_INHERITED(PositionSensorVRDevice, VRDevice);
}
virtual ~PositionSensorVRDevice()
{
MOZ_COUNT_DTOR_INHERITED(PositionSensorVRDevice, VRDevice);
}
};
class HMDPositionVRDevice : public PositionSensorVRDevice
{
public:
HMDPositionVRDevice(nsISupports* aParent, gfx::VRDeviceProxy* aHMD);
~HMDPositionVRDevice();
virtual already_AddRefed<VRPositionState> GetState() override;
virtual already_AddRefed<VRPositionState> GetImmediateState() override;
virtual void ResetSensor() override;
};
} // namespace dom
} // namespace mozilla
#endif