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// Copyright 2021 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_CPU_DEPTH_INFORMATION_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_CPU_DEPTH_INFORMATION_H_
#include "device/vr/public/mojom/vr_service.mojom-blink-forward.h"
#include "device/vr/public/mojom/xr_session.mojom-blink-forward.h"
#include "third_party/blink/renderer/core/typed_arrays/dom_array_buffer.h"
#include "third_party/blink/renderer/modules/xr/xr_depth_information.h"
namespace gfx {
class Size;
class Transform;
} // namespace gfx
namespace blink {
class ExceptionState;
class XRView;
class XRCPUDepthInformation final : public XRDepthInformation {
DEFINE_WRAPPERTYPEINFO();
public:
XRCPUDepthInformation(
const XRView* xr_view,
const device::mojom::blink::XRViewGeometryPtr& view_geometry,
const gfx::Size& size,
const gfx::Transform& norm_texture_from_norm_view,
float raw_value_to_meters,
device::mojom::XRDepthDataFormat data_format,
DOMArrayBuffer* data);
DOMArrayBuffer* data(ExceptionState& exception_state) const;
float getDepthInMeters(float x,
float y,
ExceptionState& exception_state) const;
void Trace(Visitor* visitor) const override;
private:
const Member<DOMArrayBuffer> data_;
const device::mojom::XRDepthDataFormat data_format_;
const size_t bytes_per_element_;
// Helper, returns value at `index` in `data_`. Depending on `data_format_`,
// the `data_` will be viewed into via Uint16Array (for luminance-alpha),
// or via Float32Array (for float32).
float GetItem(size_t index) const;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_CPU_DEPTH_INFORMATION_H_
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