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/*
* Copyright (C) 2024 Apple, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(WEBXR_LAYERS)
#include "GPUTextureFormat.h"
#include "WebGPUXRBinding.h"
#include "WebXRSession.h"
#include "XREye.h"
#include "XRGPUProjectionLayerInit.h"
#include <ExceptionOr.h>
#include <wtf/Ref.h>
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>
namespace WebCore {
namespace WebGPU {
class XRBinding;
}
enum class GPUTextureFormat : uint8_t;
class GPUDevice;
class WebXRFrame;
class WebXRSession;
class WebXRView;
class XRCompositionLayer;
class XRCubeLayer;
class XRCylinderLayer;
class XREquirectLayer;
class XRProjectionLayer;
class XRQuadLayer;
class XRGPUSubImage;
struct XRCubeLayerInit;
struct XRCylinderLayerInit;
struct XREquirectLayerInit;
struct XRGPUProjectionLayerInit;
struct XRProjectionLayerInit;
struct XRQuadLayerInit;
// https://github.com/immersive-web/WebXR-WebGPU-Binding/blob/main/explainer.md
class XRGPUBinding : public RefCounted<XRGPUBinding> {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(XRGPUBinding);
public:
static Ref<XRGPUBinding> create(const WebXRSession& session, GPUDevice& device)
{
return adoptRef(*new XRGPUBinding(session, device));
}
double nativeProjectionScaleFactor() const;
ExceptionOr<Ref<XRProjectionLayer>> createProjectionLayer(ScriptExecutionContext&, std::optional<XRGPUProjectionLayerInit>);
RefPtr<XRGPUSubImage> getSubImage(XRCompositionLayer&, WebXRFrame&, std::optional<XREye>/* = "none"*/);
ExceptionOr<Ref<XRGPUSubImage>> getViewSubImage(XRProjectionLayer&, WebXRView&);
GPUTextureFormat getPreferredColorFormat();
GPUDevice& device();
// The core specification doesn't require these, support will be added later.
// XRQuadLayer createQuadLayer(optional XRGPUQuadLayerInit init);
// XRCylinderLayer createCylinderLayer(optional XRGPUCylinderLayerInit init);
// XREquirectLayer createEquirectLayer(optional XRGPUEquirectLayerInit init);
// XRCubeLayer createCubeLayer(optional XRGPUCubeLayerInit init);
private:
XRGPUBinding(const WebXRSession&, GPUDevice&);
RefPtr<WebGPU::XRBinding> m_backing;
RefPtr<const WebXRSession> m_session;
std::optional<XRGPUProjectionLayerInit> m_init;
Ref<GPUDevice> m_device;
};
} // namespace WebCore
#endif // ENABLE(WEBXR_LAYERS)
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