third_party/WebKit/Source/modules/vr/VRFrameData.h

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef VRFrameData_h
#define VRFrameData_h

#include "bindings/core/v8/ScriptWrappable.h"
#include "core/dom/DOMHighResTimeStamp.h"
#include "core/dom/DOMTypedArray.h"
#include "device/vr/vr_service.mojom-blink.h"
#include "platform/heap/Handle.h"
#include "wtf/Forward.h"

namespace blink {

class VREyeParameters;
class VRPose;

class VRFrameData final : public GarbageCollected<VRFrameData>, public ScriptWrappable {
    DEFINE_WRAPPERTYPEINFO();
public:
    static VRFrameData* create()
    {
        return new VRFrameData();
    }

    VRFrameData();

    DOMHighResTimeStamp timestamp() const { return m_timestamp; }
    DOMFloat32Array* leftProjectionMatrix() const { return m_leftProjectionMatrix; }
    DOMFloat32Array* leftViewMatrix() const { return m_leftViewMatrix; }
    DOMFloat32Array* rightProjectionMatrix() const { return m_rightProjectionMatrix; }
    DOMFloat32Array* rightViewMatrix() const { return m_rightViewMatrix; }
    VRPose* pose() const { return m_pose; }

    // Populate a the VRFrameData with a pose and the necessary eye parameters.
    // TODO(bajones): The full frame data should be provided by the VRService,
    // not computed here.
    bool update(const device::blink::VRPosePtr&, VREyeParameters* leftEye, VREyeParameters* rightEye, float depthNear, float depthFar);

    DECLARE_VIRTUAL_TRACE()

private:
    DOMHighResTimeStamp m_timestamp;
    Member<DOMFloat32Array> m_leftProjectionMatrix;
    Member<DOMFloat32Array> m_leftViewMatrix;
    Member<DOMFloat32Array> m_rightProjectionMatrix;
    Member<DOMFloat32Array> m_rightViewMatrix;
    Member<VRPose> m_pose;
};

} // namespace blink

#endif // VRStageParameters_h