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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 {
class VRDisplayOculus : public VRDisplayHost
{
public:
virtual void NotifyVSync() override;
virtual VRHMDSensorState GetSensorState() override;
virtual VRHMDSensorState GetImmediateSensorState() override;
void ZeroSensor() override;
protected:
virtual void StartPresentation() override;
virtual void StopPresentation() override;
virtual void SubmitFrame(mozilla::layers::TextureSourceD3D11* aSource,
const IntSize& aSize,
const VRHMDSensorState& aSensorState,
const gfx::Rect& aLeftEyeRect,
const gfx::Rect& aRightEyeRect) override;
public:
explicit VRDisplayOculus(ovrSession aSession);
protected:
virtual ~VRDisplayOculus();
void Destroy();
bool RequireSession();
const ovrHmdDesc& GetHmdDesc();
already_AddRefed<layers::CompositingRenderTargetD3D11> GetNextRenderTarget();
VRHMDSensorState GetSensorState(double timeOffset);
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;
bool UpdateConstantBuffers();
struct Vertex
{
float position[2];
};
};
} // namespace impl
class VRDisplayManagerOculus : public VRDisplayManager
{
public:
static already_AddRefed<VRDisplayManagerOculus> Create();
virtual bool Init() override;
virtual void Destroy() override;
virtual void GetHMDs(nsTArray<RefPtr<VRDisplayHost> >& aHMDResult) override;
protected:
VRDisplayManagerOculus()
: mOculusInitialized(false)
{ }
RefPtr<impl::VRDisplayOculus> mHMDInfo;
bool mOculusInitialized;
RefPtr<nsIThread> mOculusThread;
};
} // namespace gfx
} // namespace mozilla
#endif /* GFX_VR_OCULUS_H */
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