зеркало из https://github.com/mozilla/gecko-dev.git
98 строки
2.6 KiB
C++
98 строки
2.6 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_CARDBOARD_H
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#define GFX_VR_CARDBOARD_H
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#include "mozilla/gfx/2D.h"
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#include "mozilla/gfx/Quaternion.h"
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#include "mozilla/EnumeratedArray.h"
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#include "mozilla/HalSensor.h"
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#include "mozilla/HalScreenConfiguration.h"
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#include "gfxVR.h"
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namespace mozilla {
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namespace gfx {
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namespace impl {
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class HMDInfoCardboard :
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public VRHMDInfo,
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public hal::ISensorObserver,
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public hal::ScreenConfigurationObserver
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{
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public:
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explicit HMDInfoCardboard();
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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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bool StartSensorTracking() override;
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VRHMDSensorState GetSensorState(double timeOffset) override;
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void StopSensorTracking() override;
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void ZeroSensor() 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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void Destroy();
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// ISensorObserver interface
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void Notify(const hal::SensorData& SensorData) override;
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// ScreenConfigurationObserver interface
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void Notify(const hal::ScreenConfiguration& ScreenConfiguration) override;
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protected:
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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 padding[4];
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};
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virtual ~HMDInfoCardboard() {
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Destroy();
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}
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void ComputeStateFromLastSensor();
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uint32_t mStartCount;
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VRHMDSensorState mLastSensorState;
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uint32_t mOrient;
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Quaternion mScreenTransform;
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Quaternion mSensorZeroInverse;
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Quaternion mSavedLastSensor;
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double mSavedLastSensorTime;
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bool mNeedsSensorCompute; // if we need to compute the state from mSavedLastSensor
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};
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} // namespace impl
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class VRHMDManagerCardboard : public VRHMDManager
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{
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public:
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VRHMDManagerCardboard()
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: mCardboardInitialized(false)
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{ }
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virtual bool PlatformInit() override;
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virtual bool Init() override;
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virtual void Destroy() override;
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virtual void GetHMDs(nsTArray<nsRefPtr<VRHMDInfo> >& aHMDResult) override;
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protected:
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nsTArray<nsRefPtr<impl::HMDInfoCardboard>> mCardboardHMDs;
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bool mCardboardInitialized;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif /* GFX_VR_CARDBOARD_H */
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