gecko-dev/gfx/vr/gfxVROSVR.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_OSVR_H
#define GFX_VR_OSVR_H
#include "nsTArray.h"
#include "mozilla/RefPtr.h"
#include "nsThreadUtils.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/EnumeratedArray.h"
#include "gfxVR.h"
#include <osvr/ClientKit/ClientKitC.h>
#include <osvr/ClientKit/DisplayC.h>
namespace mozilla {
namespace gfx {
namespace impl {
class HMDInfoOSVR : public VRHMDInfo, public VRHMDRenderingSupport
{
public:
explicit HMDInfoOSVR(OSVR_ClientContext* context, OSVR_ClientInterface* iface,
OSVR_DisplayConfig* display);
bool SetFOV(const VRFieldOfView& aFOVLeft, const VRFieldOfView& aFOVRight,
double zNear, double zFar) override;
VRHMDSensorState GetSensorState() override;
VRHMDSensorState GetImmediateSensorState() override;
bool KeepSensorTracking() override;
void ZeroSensor() override;
void NotifyVsync(const TimeStamp& aVsyncTimestamp) override;
void FillDistortionConstants(uint32_t whichEye, const IntSize& textureSize,
const IntRect& eyeViewport,
const Size& destViewport, const Rect& destRect,
VRDistortionConstants& values) override;
VRHMDRenderingSupport* GetRenderingSupport() override { return this; }
void Destroy();
/* VRHMDRenderingSupport */
already_AddRefed<RenderTargetSet> CreateRenderTargetSet(
layers::Compositor* aCompositor, const IntSize& aSize) override;
void DestroyRenderTargetSet(RenderTargetSet* aRTSet) override;
void SubmitFrame(RenderTargetSet* aRTSet, int32_t aInputFrameID) override;
protected:
virtual ~HMDInfoOSVR()
{
Destroy();
MOZ_COUNT_DTOR_INHERITED(HMDInfoOSVR, VRHMDInfo);
}
// must match the size of VRDistortionVertex
struct DistortionVertex
{
float pos[2];
float texR[2];
float texG[2];
float texB[2];
float genericAttribs[4];
};
OSVR_ClientContext* m_ctx;
OSVR_ClientInterface* m_iface;
OSVR_DisplayConfig* m_display;
};
} // namespace impl
class VRHMDManagerOSVR : public VRHMDManager
{
public:
static already_AddRefed<VRHMDManagerOSVR> Create();
virtual bool Init() override;
virtual void Destroy() override;
virtual void GetHMDs(nsTArray<RefPtr<VRHMDInfo>>& aHMDResult) override;
protected:
VRHMDManagerOSVR()
: mOSVRInitialized(false)
, mClientContextInitialized(false)
, mDisplayConfigInitialized(false)
, mInterfaceInitialized(false)
, m_ctx(nullptr)
, m_iface(nullptr)
, m_display(nullptr)
{
}
RefPtr<impl::HMDInfoOSVR> mHMDInfo;
bool mOSVRInitialized;
bool mClientContextInitialized;
bool mDisplayConfigInitialized;
bool mInterfaceInitialized;
RefPtr<nsIThread> mOSVRThread;
OSVR_ClientContext m_ctx;
OSVR_ClientInterface m_iface;
OSVR_DisplayConfig m_display;
private:
// check if all components are initialized
// and if not, it will try to initialize them
void CheckOSVRStatus();
void InitializeClientContext();
void InitializeDisplay();
void InitializeInterface();
};
} // namespace gfx
} // namespace mozilla
#endif /* GFX_VR_OSVR_H */