gecko-dev/gfx/vr/gfxVROculus.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_OCULUS_H
#define GFX_VR_OCULUS_H
#include "nsTArray.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/EnumeratedArray.h"
#include "gfxVR.h"
#include "VRDisplayHost.h"
#include "ovr_capi_dynamic.h"
struct ID3D11Device;
namespace mozilla {
namespace layers {
class CompositingRenderTargetD3D11;
struct VertexShaderConstants;
struct PixelShaderConstants;
}
namespace gfx {
namespace impl {
enum class OculusControllerAxisType : uint16_t {
ThumbstickXAxis,
ThumbstickYAxis,
NumVRControllerAxisType
};
class VRDisplayOculus : public VRDisplayHost
{
public:
virtual void NotifyVSync() override;
void ZeroSensor() override;
protected:
virtual VRHMDSensorState GetSensorState() override;
virtual void StartPresentation() override;
virtual void StopPresentation() override;
virtual bool SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
const IntSize& aSize,
const gfx::Rect& aLeftEyeRect,
const gfx::Rect& aRightEyeRect) override;
void UpdateStageParameters();
public:
explicit VRDisplayOculus(ovrSession aSession);
protected:
virtual ~VRDisplayOculus();
void Destroy();
bool RequireSession();
const ovrHmdDesc& GetHmdDesc();
already_AddRefed<layers::CompositingRenderTargetD3D11> GetNextRenderTarget();
VRHMDSensorState GetSensorState(double absTime);
ovrHmdDesc mDesc;
ovrSession mSession;
ovrFovPort mFOVPort[2];
ovrTextureSwapChain mTextureSet;
nsTArray<RefPtr<layers::CompositingRenderTargetD3D11>> mRenderTargets;
RefPtr<ID3D11Device> mDevice;
RefPtr<ID3D11DeviceContext> mContext;
ID3D11VertexShader* mQuadVS;
ID3D11PixelShader* mQuadPS;
RefPtr<ID3D11SamplerState> mLinearSamplerState;
layers::VertexShaderConstants mVSConstants;
layers::PixelShaderConstants mPSConstants;
RefPtr<ID3D11Buffer> mVSConstantBuffer;
RefPtr<ID3D11Buffer> mPSConstantBuffer;
RefPtr<ID3D11Buffer> mVertexBuffer;
RefPtr<ID3D11InputLayout> mInputLayout;
bool mIsPresenting;
float mEyeHeight;
bool UpdateConstantBuffers();
struct Vertex
{
float position[2];
};
};
class VRControllerOculus : public VRControllerHost
{
public:
explicit VRControllerOculus(dom::GamepadHand aHand);
float GetAxisMove(uint32_t aAxis);
void SetAxisMove(uint32_t aAxis, float aValue);
float GetIndexTrigger();
void SetIndexTrigger(float aValue);
float GetHandTrigger();
void SetHandTrigger(float aValue);
void VibrateHaptic(ovrSession aSession,
uint32_t aHapticIndex,
double aIntensity,
double aDuration,
uint32_t aPromiseID);
void StopVibrateHaptic();
protected:
virtual ~VRControllerOculus();
private:
void UpdateVibrateHaptic(ovrSession aSession,
uint32_t aHapticIndex,
double aIntensity,
double aDuration,
uint64_t aVibrateIndex,
uint32_t aPromiseID);
void VibrateHapticComplete(ovrSession aSession, uint32_t aPromiseID, bool aStop);
float mAxisMove[static_cast<uint32_t>(
OculusControllerAxisType::NumVRControllerAxisType)];
float mIndexTrigger;
float mHandTrigger;
nsCOMPtr<nsIThread> mVibrateThread;
Atomic<bool> mIsVibrateStopped;
};
} // namespace impl
class VRSystemManagerOculus : public VRSystemManager
{
public:
static already_AddRefed<VRSystemManagerOculus> Create();
virtual void Destroy() override;
virtual void Shutdown() 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, uint32_t aPromiseID) override;
virtual void StopVibrateHaptic(uint32_t aControllerIdx) override;
protected:
VRSystemManagerOculus()
: mOvrLib(nullptr), mSession(nullptr), mStarted(false)
{}
bool Startup();
bool LoadOvrLib();
void UnloadOvrLib();
private:
void HandleButtonPress(uint32_t aControllerIdx,
uint32_t aButton,
uint64_t aButtonMask,
uint64_t aButtonPressed,
uint64_t aButtonTouched);
void HandleAxisMove(uint32_t aControllerIdx, uint32_t aAxis,
float aValue);
void HandlePoseTracking(uint32_t aControllerIdx,
const dom::GamepadPoseState& aPose,
VRControllerHost* aController);
void HandleIndexTriggerPress(uint32_t aControllerIdx, uint32_t aButton, float aValue);
void HandleHandTriggerPress(uint32_t aControllerIdx, uint32_t aButton, float aValue);
void HandleTouchEvent(uint32_t aControllerIdx, uint32_t aButton,
uint64_t aTouchMask, uint64_t aTouched);
PRLibrary* mOvrLib;
RefPtr<impl::VRDisplayOculus> mHMDInfo;
nsTArray<RefPtr<impl::VRControllerOculus>> mOculusController;
RefPtr<nsIThread> mOculusThread;
ovrSession mSession;
bool mStarted;
};
} // namespace gfx
} // namespace mozilla
#endif /* GFX_VR_OCULUS_H */