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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
#include "PlatformXR.h"
#include "WebGPUTextureFormat.h"
#include "WebGPUTextureUsage.h"
#include "WebGPUXREye.h"
#include "WebGPUXRProjectionLayer.h"
#include "WebGPUXRSubImage.h"
#include <wtf/Ref.h>
#include <wtf/RefCountedAndCanMakeWeakPtr.h>
#include <wtf/WeakPtr.h>
namespace WTF {
class MachSendRight;
}
namespace WebCore {
class WebXRRigidTransform;
}
namespace WebCore::WebGPU {
class Device;
class XRGPUSubImage;
class XRProjectionLayer;
class XRFrame;
class XRView;
struct XRProjectionLayerInit {
TextureFormat colorFormat;
std::optional<TextureFormat> depthStencilFormat;
TextureUsageFlags textureUsage { TextureUsage::RenderAttachment };
double scaleFactor { 1.0 };
};
class XRProjectionLayer : public RefCountedAndCanMakeWeakPtr<XRProjectionLayer> {
public:
virtual ~XRProjectionLayer() = default;
virtual uint32_t textureWidth() const = 0;
virtual uint32_t textureHeight() const = 0;
virtual uint32_t textureArrayLength() const = 0;
virtual bool ignoreDepthValues() const = 0;
virtual std::optional<float> fixedFoveation() const = 0;
virtual void setFixedFoveation(std::optional<float>) = 0;
virtual WebXRRigidTransform* deltaPose() const = 0;
virtual void setDeltaPose(WebXRRigidTransform*) = 0;
// WebXRLayer
#if PLATFORM(COCOA)
virtual void startFrame(size_t frameIndex, MachSendRight&& colorBuffer, MachSendRight&& depthBuffer, MachSendRight&& completionSyncEvent, size_t reusableTextureIndex) = 0;
#endif
virtual void endFrame() = 0;
virtual bool isRemoteXRProjectionLayerProxy() const { return false; }
protected:
XRProjectionLayer() = default;
private:
XRProjectionLayer(const XRProjectionLayer&) = delete;
XRProjectionLayer(XRProjectionLayer&&) = delete;
XRProjectionLayer& operator=(const XRProjectionLayer&) = delete;
XRProjectionLayer& operator=(XRProjectionLayer&&) = delete;
};
} // namespace WebCore::WebGPU
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