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/*
* Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
* Copyright (C) 2019 Igalia S.L.
*
* 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 "AcceleratedSurface.h"
#include "CallbackID.h"
#include "CompositingCoordinator.h"
#include "LayerTreeContext.h"
#include "SimpleViewportController.h"
#include "ThreadedCompositor.h"
#include "ThreadedDisplayRefreshMonitor.h"
#include <WebCore/FloatPoint.h>
#include <WebCore/PlatformScreen.h>
#include <wtf/Forward.h>
#include <wtf/OptionSet.h>
#include <wtf/RunLoop.h>
#if USE(GRAPHICS_LAYER_TEXTURE_MAPPER)
#include "LayerTreeHostTextureMapper.h"
#else // USE(GRAPHICS_LAYER_TEXTURE_MAPPER)
namespace WebCore {
class CoordinatedGraphicsLayer;
class IntRect;
class IntSize;
class GraphicsLayer;
class GraphicsLayerFactory;
struct ViewportAttributes;
}
namespace WebKit {
class WebPage;
class LayerTreeHost
#if USE(COORDINATED_GRAPHICS)
final : public CompositingCoordinator::Client, public AcceleratedSurface::Client, public ThreadedCompositor::Client, public ThreadedDisplayRefreshMonitor::Client
#endif
{
WTF_MAKE_FAST_ALLOCATED;
public:
LayerTreeHost(WebPage&, WebCore::PlatformDisplayID);
~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 scrollNonCompositedContents(const WebCore::IntRect&);
void forceRepaint();
void forceRepaintAsync(CompletionHandler<void()>&&);
void sizeDidChange(const WebCore::IntSize& newSize);
void targetRefreshRateDidChange(unsigned);
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; }
#if PLATFORM(GTK)
void adjustTransientZoom(double, WebCore::FloatPoint);
void commitTransientZoom(double, WebCore::FloatPoint);
#endif
private:
#if USE(COORDINATED_GRAPHICS)
void layerFlushTimerFired();
void didChangeViewport();
void renderNextFrame(bool);
// CompositingCoordinator::Client
void didFlushRootLayer(const WebCore::FloatRect& visibleContentRect) override;
void notifyFlushRequired() override { scheduleLayerFlush(); };
void commitSceneState(const RefPtr<Nicosia::Scene>&) override;
void updateScene() override;
// AcceleratedSurface::Client
void frameComplete() override;
// ThreadedCompositor::Client
uint64_t nativeSurfaceHandleForCompositing() override;
void didCreateGLContext() override;
void willDestroyGLContext() override;
void didDestroyGLContext() override;
void resize(const WebCore::IntSize&) override;
void willRenderFrame() override;
void didRenderFrame() override;
void displayDidRefresh(WebCore::PlatformDisplayID) override;
// ThreadedDisplayRefreshMonitor::Client
void requestDisplayRefreshMonitorUpdate() override;
void handleDisplayRefreshMonitorUpdate(bool hasBeenRescheduled) override;
#if PLATFORM(GTK)
WebCore::FloatPoint constrainTransientZoomOrigin(double, WebCore::FloatPoint) const;
WebCore::CoordinatedGraphicsLayer* layerForTransientZoom() const;
void applyTransientZoomToLayers(double, WebCore::FloatPoint);
#endif
enum class DiscardableSyncActions {
UpdateSize = 1 << 1,
UpdateViewport = 1 << 2,
UpdateScale = 1 << 3
};
#endif // USE(COORDINATED_GRAPHICS)
WebPage& m_webPage;
LayerTreeContext m_layerTreeContext;
#if USE(COORDINATED_GRAPHICS)
bool m_layerFlushSchedulingEnabled { true };
bool m_notifyAfterScheduledLayerFlush { false };
bool m_isSuspended { false };
bool m_isWaitingForRenderer { false };
bool m_scheduledWhileWaitingForRenderer { false };
float m_lastPageScaleFactor { 1 };
WebCore::IntPoint m_lastScrollPosition;
bool m_isDiscardable { false };
OptionSet<DiscardableSyncActions> m_discardableSyncActions;
WebCore::GraphicsLayer* m_viewOverlayRootLayer { nullptr };
std::unique_ptr<AcceleratedSurface> m_surface;
RefPtr<ThreadedCompositor> m_compositor;
SimpleViewportController m_viewportController;
struct {
CompletionHandler<void()> callback;
bool needsFreshFlush { false };
} m_forceRepaintAsync;
RunLoop::Timer m_layerFlushTimer;
CompositingCoordinator m_coordinator;
#endif // USE(COORDINATED_GRAPHICS)
WebCore::PlatformDisplayID m_displayID;
#if PLATFORM(GTK)
bool m_transientZoom { false };
double m_transientZoomScale { 1 };
WebCore::FloatPoint m_transientZoomOrigin;
#endif
};
#if !USE(COORDINATED_GRAPHICS)
inline LayerTreeHost::LayerTreeHost(WebPage& webPage, WebCore::PlatformDisplayID displayID) : m_webPage(webPage), m_displayID(displayID) { }
inline LayerTreeHost::~LayerTreeHost() { }
inline void LayerTreeHost::setLayerFlushSchedulingEnabled(bool) { }
inline void LayerTreeHost::setShouldNotifyAfterNextScheduledLayerFlush(bool) { }
inline void LayerTreeHost::scheduleLayerFlush() { }
inline void LayerTreeHost::cancelPendingLayerFlush() { }
inline void LayerTreeHost::setRootCompositingLayer(WebCore::GraphicsLayer*) { }
inline void LayerTreeHost::setViewOverlayRootLayer(WebCore::GraphicsLayer*) { }
inline void LayerTreeHost::scrollNonCompositedContents(const WebCore::IntRect&) { }
inline void LayerTreeHost::forceRepaint() { }
inline void LayerTreeHost::forceRepaintAsync(CompletionHandler<void()>&&) { }
inline void LayerTreeHost::sizeDidChange(const WebCore::IntSize&) { }
inline void LayerTreeHost::targetRefreshRateDidChange(unsigned) { }
inline void LayerTreeHost::pauseRendering() { }
inline void LayerTreeHost::resumeRendering() { }
inline WebCore::GraphicsLayerFactory* LayerTreeHost::graphicsLayerFactory() { return nullptr; }
inline void LayerTreeHost::contentsSizeChanged(const WebCore::IntSize&) { }
inline void LayerTreeHost::didChangeViewportAttributes(WebCore::ViewportAttributes&&) { }
inline void LayerTreeHost::setIsDiscardable(bool) { }
inline void LayerTreeHost::deviceOrPageScaleFactorChanged() { }
inline RefPtr<WebCore::DisplayRefreshMonitor> LayerTreeHost::createDisplayRefreshMonitor(WebCore::PlatformDisplayID) { return nullptr; }
#if PLATFORM(GTK)
inline void LayerTreeHost::adjustTransientZoom(double, WebCore::FloatPoint) { }
inline void LayerTreeHost::commitTransientZoom(double, WebCore::FloatPoint) { }
#endif
#endif
} // namespace WebKit
#endif // USE(GRAPHICS_LAYER_TEXTURE_MAPPER)
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