зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
3.3 KiB
C++
109 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_VR_OCULUS_H
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#define GFX_VR_OCULUS_H
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#include "nsTArray.h"
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#include "mozilla/RefPtr.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/EnumeratedArray.h"
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#include "gfxVR.h"
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//#include <OVR_CAPI.h>
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//#include <OVR_CAPI_D3D.h>
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#include "ovr_capi_dynamic.h"
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namespace mozilla {
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namespace gfx {
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namespace impl {
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class HMDInfoOculus : public VRHMDInfo, public VRHMDRenderingSupport {
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public:
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explicit HMDInfoOculus(ovrSession aSession);
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bool SetFOV(const VRFieldOfView& aFOVLeft, const VRFieldOfView& aFOVRight,
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double zNear, double zFar) override;
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virtual VRHMDSensorState GetSensorState() override;
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virtual VRHMDSensorState GetImmediateSensorState() override;
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void ZeroSensor() override;
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bool KeepSensorTracking() override;
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void NotifyVsync(const TimeStamp& aVsyncTimestamp) override;
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void FillDistortionConstants(uint32_t whichEye,
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const IntSize& textureSize, const IntRect& eyeViewport,
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const Size& destViewport, const Rect& destRect,
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VRDistortionConstants& values) override;
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VRHMDRenderingSupport* GetRenderingSupport() override { return this; }
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void Destroy();
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/* VRHMDRenderingSupport */
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already_AddRefed<RenderTargetSet> CreateRenderTargetSet(layers::Compositor *aCompositor, const IntSize& aSize) override;
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void DestroyRenderTargetSet(RenderTargetSet *aRTSet) override;
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void SubmitFrame(RenderTargetSet *aRTSet, int32_t aInputFrameID) override;
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ovrSession GetOculusSession() const { return mSession; }
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protected:
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virtual ~HMDInfoOculus() {
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Destroy();
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MOZ_COUNT_DTOR_INHERITED(HMDInfoOculus, VRHMDInfo);
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}
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// must match the size of VRDistortionVertex
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struct DistortionVertex {
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float pos[2];
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float texR[2];
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float texG[2];
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float texB[2];
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float genericAttribs[4];
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};
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ovrSession mSession;
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ovrHmdDesc mDesc;
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ovrFovPort mFOVPort[2];
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VRHMDSensorState GetSensorState(double timeOffset);
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// The maximum number of frames of latency that we would expect before we
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// should give up applying pose prediction.
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// If latency is greater than one second, then the experience is not likely
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// to be corrected by pose prediction. Setting this value too
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// high may result in unnecessary memory allocation.
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// As the current fastest refresh rate is 90hz, 100 is selected as a
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// conservative value.
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static const int kMaxLatencyFrames = 100;
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VRHMDSensorState mLastSensorState[kMaxLatencyFrames];
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int32_t mInputFrameID;
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};
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} // namespace impl
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class VRHMDManagerOculus : public VRHMDManager
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{
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public:
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static already_AddRefed<VRHMDManagerOculus> Create();
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virtual bool Init() override;
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virtual void Destroy() override;
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virtual void GetHMDs(nsTArray<RefPtr<VRHMDInfo> >& aHMDResult) override;
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protected:
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VRHMDManagerOculus()
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: mOculusInitialized(false)
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{ }
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RefPtr<impl::HMDInfoOculus> mHMDInfo;
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bool mOculusInitialized;
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RefPtr<nsIThread> mOculusThread;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* GFX_VR_OCULUS_H */
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