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// Copyright 2017 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 THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_VIEW_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_VIEW_H_
#include "third_party/blink/renderer/core/typed_arrays/dom_typed_array.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/geometry/float_point_3d.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/transforms/transformation_matrix.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/blink/renderer/modules/xr/xr_rigid_transform.h"
namespace blink {
class XRSession;
class XRViewData;
class MODULES_EXPORT XRView final : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
XRView(XRSession*, const XRViewData&);
enum XREye { kEyeNone = 0, kEyeLeft = 1, kEyeRight = 2 };
const String& eye() const { return eye_string_; }
XREye EyeValue() const { return eye_; }
XRSession* session() const;
DOMFloat32Array* projectionMatrix() const;
XRRigidTransform* transform() const;
void Trace(blink::Visitor*) override;
private:
XREye eye_;
String eye_string_;
Member<XRSession> session_;
Member<XRRigidTransform> ref_space_from_eye_;
Member<DOMFloat32Array> projection_matrix_;
};
class MODULES_EXPORT XRViewData {
public:
XRViewData(XRView::XREye eye) : eye_(eye) {}
void UpdatePoseMatrix(const TransformationMatrix& ref_space_from_head);
void UpdateProjectionMatrixFromFoV(float up_rad,
float down_rad,
float left_rad,
float right_rad,
float near_depth,
float far_depth);
void UpdateProjectionMatrixFromAspect(float fovy,
float aspect,
float near_depth,
float far_depth);
void SetHeadFromEyeTransform(const TransformationMatrix& head_from_eye);
TransformationMatrix UnprojectPointer(double x,
double y,
double canvas_width,
double canvas_height);
XRView::XREye Eye() const { return eye_; }
const TransformationMatrix& Transform() const { return ref_space_from_eye_; }
const TransformationMatrix& ProjectionMatrix() const {
return projection_matrix_;
}
private:
const XRView::XREye eye_;
TransformationMatrix ref_space_from_eye_;
TransformationMatrix projection_matrix_;
TransformationMatrix inv_projection_;
TransformationMatrix head_from_eye_;
bool inv_projection_dirty_ = true;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_VIEW_H_
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