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/*
* Copyright (C) 2021 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. ``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
* 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 "GraphicsLayer.h"
#include "ImageBuffer.h"
#include <wtf/RefCounted.h>
#if !USE(CA)
#include "PlatformLayer.h"
#endif
namespace WebCore {
#if USE(CA)
class PlatformCALayer;
#endif
// Platform specific interface for attaching contents to GraphicsLayer.
// Responsible for creating compositor resources to show the particular contents
// in the platform specific GraphicsLayer.
class WEBCORE_EXPORT GraphicsLayerContentsDisplayDelegate : public RefCounted<GraphicsLayerContentsDisplayDelegate> {
public:
virtual ~GraphicsLayerContentsDisplayDelegate();
#if USE(CA)
virtual void prepareToDelegateDisplay(PlatformCALayer&);
// Must not detach the platform layer backing store.
virtual void display(PlatformCALayer&) = 0;
virtual GraphicsLayer::CompositingCoordinatesOrientation orientation() const;
#else
virtual PlatformLayer* platformLayer() const = 0;
#endif
};
class GraphicsLayerAsyncContentsDisplayDelegate : public GraphicsLayerContentsDisplayDelegate {
public:
virtual ~GraphicsLayerAsyncContentsDisplayDelegate() = default;
virtual bool WEBCORE_EXPORT tryCopyToLayer(ImageBuffer&) = 0;
virtual bool isGraphicsLayerAsyncContentsDisplayDelegateCocoa() const { return false; }
virtual bool isGraphicsLayerCARemoteAsyncContentsDisplayDelegate() const { return false; }
};
}
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