60 lines
2.3 KiB
Diff
60 lines
2.3 KiB
Diff
From c6639e225f45564def8f6729c83887ab73495e59 Mon Sep 17 00:00:00 2001
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From: Paul Olav Tvete <paul.tvete@qt.io>
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Date: Tue, 15 Mar 2022 15:59:15 +0100
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Subject: [PATCH 24/55] Revert "Client: Remove mWaitingForUpdateDelivery"
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The reverted commit introduces a severe performance regression
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when a client window is resized while a QtQuick renderthread
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animation is running.
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This reverts commit feb1a5c207c13d0bf87c0d8ad039279dbf8cee9e.
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Fixes: QTBUG-101726
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Change-Id: Ib5b52ce06efec8c86fada1623c2af82099e57fc6
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Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
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---
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src/client/qwaylandwindow.cpp | 12 +++++++++---
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src/client/qwaylandwindow_p.h | 1 +
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2 files changed, 10 insertions(+), 3 deletions(-)
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diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
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index 69319228..a87e11aa 100644
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--- a/src/client/qwaylandwindow.cpp
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+++ b/src/client/qwaylandwindow.cpp
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@@ -658,11 +658,17 @@ void QWaylandWindow::handleFrameCallback()
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sendExposeEvent(QRect(QPoint(), geometry().size()));
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if (wasExposed && hasPendingUpdateRequest())
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deliverUpdateRequest();
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+
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+ mWaitingForUpdateDelivery = false;
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};
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- // Queued connection, to make sure we don't call handleUpdate() from inside waitForFrameSync()
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- // in the single-threaded case.
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- QMetaObject::invokeMethod(this, doHandleExpose, Qt::QueuedConnection);
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+ if (!mWaitingForUpdateDelivery) {
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+ // Queued connection, to make sure we don't call handleUpdate() from inside waitForFrameSync()
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+ // in the single-threaded case.
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+ mWaitingForUpdateDelivery = true;
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+ QMetaObject::invokeMethod(this, doHandleExpose, Qt::QueuedConnection);
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+ }
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+
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mFrameSyncWait.notify_all();
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}
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diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
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index cf7ce879..54ac67a9 100644
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--- a/src/client/qwaylandwindow_p.h
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+++ b/src/client/qwaylandwindow_p.h
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@@ -228,6 +228,7 @@ protected:
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WId mWindowId;
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bool mWaitingForFrameCallback = false;
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bool mFrameCallbackTimedOut = false; // Whether the frame callback has timed out
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+ bool mWaitingForUpdateDelivery = false;
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int mFrameCallbackCheckIntervalTimerId = -1;
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QElapsedTimer mFrameCallbackElapsedTimer;
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struct ::wl_callback *mFrameCallback = nullptr;
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--
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2.40.0
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