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/*
* Copyright (C) 2014 Apple, Inc.
* Copyright (C) 2020 Sony Interactive Entertainment Inc.
*
* 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 USE(GRAPHICS_LAYER_TEXTURE_MAPPER)
#include "CallbackID.h"
#include "LayerTreeContext.h"
#include <WebCore/DisplayRefreshMonitor.h>
#include <WebCore/GLContext.h>
#include <WebCore/GraphicsLayerClient.h>
#include <WebCore/PlatformScreen.h>
#include <WebCore/TextureMapperFPSCounter.h>
#include <WebCore/Timer.h>
#include <wtf/Forward.h>
namespace WebCore {
class GraphicsLayer;
class GraphicsLayerFactory;
class IntRect;
class IntSize;
class Page;
struct ViewportAttributes;
}
namespace WebKit {
class WebPage;
class LayerTreeHost : public WebCore::GraphicsLayerClient {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit LayerTreeHost(WebPage&);
~LayerTreeHost();
const LayerTreeContext& layerTreeContext() const { return m_layerTreeContext; }
void setLayerFlushSchedulingEnabled(bool);
void setShouldNotifyAfterNextScheduledLayerFlush(bool);
void scheduleLayerFlush();
void cancelPendingLayerFlush();
void setRootCompositingLayer(WebCore::GraphicsLayer*);
void setViewOverlayRootLayer(WebCore::GraphicsLayer*);
void setNonCompositedContentsNeedDisplay(const WebCore::IntRect&);
void scrollNonCompositedContents(const WebCore::IntRect&);
void forceRepaint();
void forceRepaintAsync(CompletionHandler<void()>&&);
void sizeDidChange(const WebCore::IntSize& newSize);
void pauseRendering();
void resumeRendering();
WebCore::GraphicsLayerFactory* graphicsLayerFactory();
void contentsSizeChanged(const WebCore::IntSize&);
void didChangeViewportAttributes(WebCore::ViewportAttributes&&);
void setIsDiscardable(bool);
void deviceOrPageScaleFactorChanged();
RefPtr<WebCore::DisplayRefreshMonitor> createDisplayRefreshMonitor(WebCore::PlatformDisplayID);
WebCore::PlatformDisplayID displayID() const { return m_displayID; }
private:
// GraphicsLayerClient
void paintContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, const WebCore::FloatRect& rectToPaint, OptionSet<WebCore::GraphicsLayerPaintBehavior>) override;
float deviceScaleFactor() const override;
void initialize();
GLNativeWindowType window();
bool enabled();
void compositeLayersToContext();
void flushAndRenderLayers();
bool flushPendingLayerChanges();
void scrollNonCompositedContents(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollOffset);
void layerFlushTimerFired();
bool prepareForRendering();
void applyDeviceScaleFactor();
WebPage& m_webPage;
std::unique_ptr<WebCore::GLContext> m_context;
LayerTreeContext m_layerTreeContext;
WebCore::PlatformDisplayID m_displayID;
RefPtr<WebCore::GraphicsLayer> m_rootLayer;
WebCore::GraphicsLayer* m_rootCompositingLayer { nullptr };
WebCore::GraphicsLayer* m_overlayCompositingLayer { nullptr };
std::unique_ptr<WebCore::TextureMapper> m_textureMapper;
WebCore::TextureMapperFPSCounter m_fpsCounter;
WebCore::Timer m_layerFlushTimer;
bool m_notifyAfterScheduledLayerFlush { false };
bool m_isSuspended { false };
};
} // namespace WebKit
#endif // USE(GRAPHICS_LAYER_TEXTURE_MAPPER)
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