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// Copyright 2020 The Chromium Authors
// 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_DEPTH_INFORMATION_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_DEPTH_INFORMATION_H_
#include "device/vr/public/mojom/vr_service.mojom-blink-forward.h"
#include "third_party/blink/renderer/core/typed_arrays/dom_typed_array.h"
#include "third_party/blink/renderer/modules/xr/xr_rigid_transform.h"
#include "third_party/blink/renderer/modules/xr/xr_view_geometry.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/transform.h"
namespace blink {
class ExceptionState;
class XRView;
class XRRigidTransform;
class XRDepthInformation : public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
protected:
XRDepthInformation(
const XRView* xr_view,
const device::mojom::blink::XRViewGeometryPtr& view_geometry,
const gfx::Size& size,
const gfx::Transform& norm_depth_buffer_from_norm_view,
float raw_value_to_meters);
// Helper to validate whether a frame is in a correct state. Should be invoked
// before every member access. If the validation returns `false`, it means the
// validation failed & an exception is going to be thrown and the rest of the
// member access code should not run.
bool ValidateFrame(ExceptionState& exception_state) const;
public:
uint32_t width() const;
uint32_t height() const;
XRRigidTransform* normDepthBufferFromNormView() const;
float rawValueToMeters() const;
NotShared<DOMFloat32Array> projectionMatrix() const;
XRRigidTransform* viewGeometryTransform() const;
void Trace(Visitor* visitor) const override;
protected:
const Member<const XRView> xr_view_;
const gfx::Size size_;
const gfx::Transform norm_depth_buffer_from_norm_view_;
const float raw_value_to_meters_;
const std::optional<XRViewGeometry> view_geometry_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_DEPTH_INFORMATION_H_
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