d825f60c24
- Add patches to fix applications not updating after some time (kde#449163): * 0001-Client-Remove-mWaitingForUpdateDelivery.patch * 0002-Guard-mResizeDirty-by-the-correctMutex.patch * 0003-Fix-up-mutexes-for-frame-callbacks.patch - Add patch to fix several feature detection tests: * 0001-Use-proper-dependencies-in-compile-tests.patch OBS-URL: https://build.opensuse.org/request/show/951555 OBS-URL: https://build.opensuse.org/package/show/KDE:Qt:5.15/libqt5-qtwayland?expand=0&rev=20
88 lines
3.1 KiB
Diff
88 lines
3.1 KiB
Diff
From ee0ab1c58f1020e901b665c79684266730f1ce29 Mon Sep 17 00:00:00 2001
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From: David Edmundson <davidedmundson@kde.org>
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Date: Thu, 3 Feb 2022 14:27:08 +0000
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Subject: [PATCH 3/3] Fix up mutexes for frame callbacks
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Everything related to frame callback timings is used by potentially 3
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threads. Access needs guarding.
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Change-Id: I9f22390c175d9f2f63d31b1ebf0cdc0b830be937
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---
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src/client/qwaylandwindow.cpp | 14 +++++++++-----
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src/client/qwaylandwindow_p.h | 10 +++++++---
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2 files changed, 16 insertions(+), 8 deletions(-)
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diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
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index 61700b32..84dcacc3 100644
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--- a/src/client/qwaylandwindow.cpp
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+++ b/src/client/qwaylandwindow.cpp
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@@ -256,8 +256,12 @@ void QWaylandWindow::reset()
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mFrameCallback = nullptr;
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}
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- mFrameCallbackElapsedTimer.invalidate();
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- mWaitingForFrameCallback = false;
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+ {
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+ QMutexLocker locker(&mFrameSyncMutex);
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+ mFrameCallbackElapsedTimer.invalidate();
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+ mWaitingForFrameCallback = false;
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+ }
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+
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mFrameCallbackTimedOut = false;
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mMask = QRegion();
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@@ -1132,6 +1136,7 @@ QVariant QWaylandWindow::property(const QString &name, const QVariant &defaultVa
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void QWaylandWindow::timerEvent(QTimerEvent *event)
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{
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+ QMutexLocker locker(&mFrameSyncMutex);
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if (event->timerId() != mFrameCallbackCheckIntervalTimerId)
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return;
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@@ -1190,15 +1195,14 @@ void QWaylandWindow::handleUpdate()
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{
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qCDebug(lcWaylandBackingstore) << "handleUpdate" << QThread::currentThread();
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- if (mWaitingForFrameCallback)
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- return;
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-
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// TODO: Should sync subsurfaces avoid requesting frame callbacks?
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QReadLocker lock(&mSurfaceLock);
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if (!mSurface)
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return;
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QMutexLocker locker(&mFrameSyncMutex);
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+ if (mWaitingForFrameCallback)
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+ return;
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struct ::wl_surface *wrappedSurface = reinterpret_cast<struct ::wl_surface *>(wl_proxy_create_wrapper(mSurface->object()));
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wl_proxy_set_queue(reinterpret_cast<wl_proxy *>(wrappedSurface), mDisplay->frameEventQueue());
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diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
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index 3ff68ccb..025d7917 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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@@ -226,13 +226,17 @@ protected:
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Qt::MouseButtons mMousePressedInContentArea = Qt::NoButton;
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WId mWindowId;
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+
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+ // The following are used by the main thread the render thread and the event frame thread
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+ // Access should be guarded by mFrameSyncMutex
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+ QMutex mFrameSyncMutex;
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+ QWaitCondition mFrameSyncWait;
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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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int mFrameCallbackCheckIntervalTimerId = -1;
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QElapsedTimer mFrameCallbackElapsedTimer;
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+
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+ bool mFrameCallbackTimedOut = false; // Whether the frame callback has timed out
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struct ::wl_callback *mFrameCallback = nullptr;
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- QMutex mFrameSyncMutex;
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- QWaitCondition mFrameSyncWait;
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// True when we have called deliverRequestUpdate, but the client has not yet attached a new buffer
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bool mWaitingForUpdate = false;
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--
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2.34.0
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