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Accepting request 713225 from KDE:Qt:5.13

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- Add patch from upstream 5.13 branch to fix crashes:
  * 0001-Don-t-crash-if-we-start-a-drag-without-dragFocus.patch
- Add patch from upstream 5.12 branch to improve performance:
  * 0002-Client-Fix-stuttering-when-the-GUI-thread-is-busy.patch
- Add patches from upstream code reviews to fix various issues:
  * 0003-Client-Don-t-send-fake-SurfaceCreated-Destroyed-even.patch
  * 0004-Client-Make-handleUpdate-aware-of-exposure-changes.patch
  * 0005-Client-Reset-frame-callback-timer-when-hiding-a-wind.patch

OBS-URL: https://build.opensuse.org/request/show/713225
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/libqt5-qtwayland?expand=0&rev=28
This commit is contained in:
Dominique Leuenberger 2019-07-13 11:45:06 +00:00 committed by Git OBS Bridge
commit d54413b6f3
7 changed files with 406 additions and 0 deletions
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36
0001-Don-t-crash-if-we-start-a-drag-without-dragFocus.patch Normal file
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From 4eb9a5a70506cf76fbe954c56b39857f8a3be0eb Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Wed, 12 Jun 2019 16:03:13 +0200
Subject: [PATCH 1/5] Don't crash if we start a drag without dragFocus
Sometimes origin will be nullptr, triggering a crash.
[ChangeLog][QPA plugin] Fixed a crash that sometimes happened when
starting a drag-and-drop operation.
Fixes: QTBUG-76368
Change-Id: I8f4e6b05f073644834c3c72a8307dac5b897f626
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
---
src/client/qwaylanddatadevice.cpp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/client/qwaylanddatadevice.cpp b/src/client/qwaylanddatadevice.cpp
index 300c9de0..11984f9d 100644
--- a/src/client/qwaylanddatadevice.cpp
+++ b/src/client/qwaylanddatadevice.cpp
@@ -111,7 +111,10 @@ void QWaylandDataDevice::startDrag(QMimeData *mimeData, QWaylandWindow *icon)
if (!origin)
origin = m_display->currentInputDevice()->touchFocus();
- start_drag(m_dragSource->object(), origin->object(), icon->object(), m_display->currentInputDevice()->serial());
+ if (origin)
+ start_drag(m_dragSource->object(), origin->object(), icon->object(), m_display->currentInputDevice()->serial());
+ else
+ qCDebug(lcQpaWayland) << "Couldn't start a drag because the origin window could not be found.";
}
void QWaylandDataDevice::cancelDrag()
--
2.22.0

134
0002-Client-Fix-stuttering-when-the-GUI-thread-is-busy.patch Normal file
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@ -0,0 +1,134 @@
From 8e72a9b2f6b4a7af3f16ceb4216a8cc3c6768b8a Mon Sep 17 00:00:00 2001
From: Johan Klokkhammer Helsing <johan.helsing@qt.io>
Date: Wed, 19 Jun 2019 14:05:22 +0200
Subject: [PATCH 2/5] Client: Fix stuttering when the GUI thread is busy
When we did invokeMethod for handling the frame callbacks, we had to wait for
the GUI thread to finish whatever it's doing before we would stop blocking.
Fix it by clearing the frame callback timer and stop blocking immediately,
while delaying the rest of the work until it can be run on the other thread.
Fixes: QTBUG-76397
Change-Id: I343e4feac4838926b4fa2ccac2948988bc6c3bb7
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
---
src/client/qwaylandwindow.cpp | 59 ++++++++++++++++++-----------------
src/client/qwaylandwindow_p.h | 2 +-
2 files changed, 32 insertions(+), 29 deletions(-)
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index 8b2c1227..7fca9783 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -614,29 +614,34 @@ const wl_callback_listener QWaylandWindow::callbackListener = {
Q_UNUSED(callback);
Q_UNUSED(time);
auto *window = static_cast<QWaylandWindow*>(data);
- if (window->thread() != QThread::currentThread())
- QMetaObject::invokeMethod(window, [=] { window->handleFrameCallback(); }, Qt::QueuedConnection);
- else
- window->handleFrameCallback();
+ window->handleFrameCallback();
}
};
void QWaylandWindow::handleFrameCallback()
{
- bool wasExposed = isExposed();
+ // Stop the timer and stop waiting immediately
+ int timerId = mFrameCallbackTimerId.fetchAndStoreOrdered(-1);
+ mWaitingForFrameCallback = false;
- if (mFrameCallbackTimerId != -1) {
- killTimer(mFrameCallbackTimerId);
- mFrameCallbackTimerId = -1;
- }
+ // The rest can wait until we can run it on the correct thread
+ auto doHandleExpose = [this, timerId]() {
+ if (timerId != -1)
+ killTimer(timerId);
- mWaitingForFrameCallback = false;
- mFrameCallbackTimedOut = false;
+ bool wasExposed = isExposed();
+ mFrameCallbackTimedOut = false;
+ if (!wasExposed && isExposed()) // Did setting mFrameCallbackTimedOut make the window exposed?
+ sendExposeEvent(QRect(QPoint(), geometry().size()));
+ if (wasExposed && hasPendingUpdateRequest())
+ deliverUpdateRequest();
+ };
- if (!wasExposed && isExposed())
- sendExposeEvent(QRect(QPoint(), geometry().size()));
- if (wasExposed && hasPendingUpdateRequest())
- deliverUpdateRequest();
+ if (thread() != QThread::currentThread()) {
+ QMetaObject::invokeMethod(this, doHandleExpose);
+ } else {
+ doHandleExpose();
+ }
}
QMutex QWaylandWindow::mFrameSyncMutex;
@@ -658,11 +663,11 @@ bool QWaylandWindow::waitForFrameSync(int timeout)
}
// Stop current frame timer if any, can't use killTimer directly, because we might be on a diffent thread
- if (mFrameCallbackTimerId != -1) {
- int id = mFrameCallbackTimerId;
- mFrameCallbackTimerId = -1;
- QMetaObject::invokeMethod(this, [=] { killTimer(id); }, Qt::QueuedConnection);
- }
+ // Ordered semantics is needed to avoid stopping the timer twice and not miss it when it's
+ // started by other writes
+ int fcbId = mFrameCallbackTimerId.fetchAndStoreOrdered(-1);
+ if (fcbId != -1)
+ QMetaObject::invokeMethod(this, [=] { killTimer(fcbId); }, Qt::QueuedConnection);
return !mWaitingForFrameCallback;
}
@@ -1100,9 +1105,9 @@ void QWaylandWindow::timerEvent(QTimerEvent *event)
}
}
- if (event->timerId() == mFrameCallbackTimerId) {
- killTimer(mFrameCallbackTimerId);
- mFrameCallbackTimerId = -1;
+
+ if (mFrameCallbackTimerId.testAndSetOrdered(event->timerId(), -1)) {
+ killTimer(event->timerId());
qCDebug(lcWaylandBackingstore) << "Didn't receive frame callback in time, window should now be inexposed";
mFrameCallbackTimedOut = true;
mWaitingForUpdate = false;
@@ -1164,11 +1169,9 @@ void QWaylandWindow::handleUpdate()
mWaitingForUpdate = false;
// Stop current frame timer if any, can't use killTimer directly, see comment above.
- if (mFrameCallbackTimerId != -1) {
- int id = mFrameCallbackTimerId;
- mFrameCallbackTimerId = -1;
- QMetaObject::invokeMethod(this, [=] { killTimer(id); }, Qt::QueuedConnection);
- }
+ int fcbId = mFrameCallbackTimerId.fetchAndStoreOrdered(-1);
+ if (fcbId != -1)
+ QMetaObject::invokeMethod(this, [=] { killTimer(fcbId); }, Qt::QueuedConnection);
// Start a timer for handling the case when the compositor stops sending frame callbacks.
QMetaObject::invokeMethod(this, [=] { // Again; can't do it directly
diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
index 8c1ebe16..86139243 100644
--- a/src/client/qwaylandwindow_p.h
+++ b/src/client/qwaylandwindow_p.h
@@ -222,7 +222,7 @@ protected:
WId mWindowId;
bool mWaitingForFrameCallback = false;
bool mFrameCallbackTimedOut = false; // Whether the frame callback has timed out
- int mFrameCallbackTimerId = -1; // Started on commit, reset on frame callback
+ QAtomicInt mFrameCallbackTimerId = -1; // Started on commit, reset on frame callback
struct ::wl_callback *mFrameCallback = nullptr;
struct ::wl_event_queue *mFrameQueue = nullptr;
QWaitCondition mFrameSyncWait;
--
2.22.0

93
0003-Client-Don-t-send-fake-SurfaceCreated-Destroyed-even.patch Normal file
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@ -0,0 +1,93 @@
From 20ddfe8dffc3be253d799bc3f939a1b0e388ed73 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Sun, 23 Jun 2019 15:09:51 +0200
Subject: [PATCH 3/5] Client: Don't send fake SurfaceCreated/Destroyed events
QPlatformSurface relates to the backing store. Not the wl_surface.
They are emitted by QPlatformWindow.
Due to a previously incorrect usage by KDE developers it was faked to
emit the events when the wl_surface is created/hidden to keep behavior.
With QtBase a9246c7132a2c8864d3ae6cebd260bb9ee711fcb this now causes an
issue as now QWidgets react to this event in a breaking way.
Change-Id: I2f003bc9da85f032a0053677fd281152099fc9eb
---
.../custom-extension/client-common/customextension.cpp | 9 +++++++--
src/client/qwaylandwindow.cpp | 10 ++--------
src/client/qwaylandwindow_p.h | 2 +-
3 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/examples/wayland/custom-extension/client-common/customextension.cpp b/examples/wayland/custom-extension/client-common/customextension.cpp
index aa0cb58a..16f18fd7 100644
--- a/examples/wayland/custom-extension/client-common/customextension.cpp
+++ b/examples/wayland/custom-extension/client-common/customextension.cpp
@@ -81,8 +81,13 @@ QWindow *CustomExtension::windowForSurface(struct ::wl_surface *surface)
bool CustomExtension::eventFilter(QObject *object, QEvent *event)
{
- if (event->type() == QEvent::PlatformSurface
- && static_cast<QPlatformSurfaceEvent*>(event)->surfaceEventType() == QPlatformSurfaceEvent::SurfaceCreated) {
+ if (event->type() == QEvent::Expose) {
+ auto ee = static_cast<QExposeEvent*>(event);
+
+ if ((ee->region().isNull())) {
+ return false;
+ }
+
QWindow *window = qobject_cast<QWindow*>(object);
Q_ASSERT(window);
window->removeEventFilter(this);
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index 7fca9783..76975b27 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -91,7 +91,7 @@ QWaylandWindow::~QWaylandWindow()
delete mWindowDecoration;
if (isInitialized())
- reset(false);
+ reset();
const QWindow *parent = window();
foreach (QWindow *w, QGuiApplication::topLevelWindows()) {
@@ -117,8 +117,6 @@ void QWaylandWindow::initWindow()
if (!isInitialized()) {
initializeWlSurface();
- QPlatformSurfaceEvent e(QPlatformSurfaceEvent::SurfaceCreated);
- QGuiApplication::sendEvent(window(), &e);
}
if (shouldCreateSubSurface()) {
@@ -224,12 +222,8 @@ bool QWaylandWindow::shouldCreateSubSurface() const
return QPlatformWindow::parent() != nullptr;
}
-void QWaylandWindow::reset(bool sendDestroyEvent)
+void QWaylandWindow::reset()
{
- if (isInitialized() && sendDestroyEvent) {
- QPlatformSurfaceEvent e(QPlatformSurfaceEvent::SurfaceAboutToBeDestroyed);
- QGuiApplication::sendEvent(window(), &e);
- }
delete mShellSurface;
mShellSurface = nullptr;
delete mSubSurfaceWindow;
diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
index 86139243..fe24224f 100644
--- a/src/client/qwaylandwindow_p.h
+++ b/src/client/qwaylandwindow_p.h
@@ -261,7 +261,7 @@ private:
void initializeWlSurface();
bool shouldCreateShellSurface() const;
bool shouldCreateSubSurface() const;
- void reset(bool sendDestroyEvent = true);
+ void reset();
void sendExposeEvent(const QRect &rect);
static void closePopups(QWaylandWindow *parent);
QWaylandScreen *calculateScreenFromSurfaceEvents() const;
--
2.22.0

80
0004-Client-Make-handleUpdate-aware-of-exposure-changes.patch Normal file
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@ -0,0 +1,80 @@
From 71a854f4eced28282df72e1b25888929799e8ee7 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Sun, 23 Jun 2019 14:48:30 +0200
Subject: [PATCH 4/5] Client: Make handleUpdate aware of exposure changes
The wl_surface can be destroyed whilst a render is happening. Calling
wl_surface::frame after the window is reset can crash as wl_surface is
null.
Change-Id: I139a9b234cb6acba81d6c1d5fa58629904a25053
---
src/client/qwaylandwindow.cpp | 8 ++++++++
src/client/qwaylandwindow_p.h | 4 ++++
2 files changed, 12 insertions(+)
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index 76975b27..c6723aa7 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -72,6 +72,8 @@ Q_LOGGING_CATEGORY(lcWaylandBackingstore, "qt.qpa.wayland.backingstore")
QWaylandWindow *QWaylandWindow::mMouseGrab = nullptr;
+QReadWriteLock mSurfaceLock;
+
QWaylandWindow::QWaylandWindow(QWindow *window)
: QPlatformWindow(window)
, mDisplay(waylandScreen()->display())
@@ -197,6 +199,7 @@ void QWaylandWindow::initWindow()
void QWaylandWindow::initializeWlSurface()
{
+ QWriteLocker lock(&mSurfaceLock);
init(mDisplay->createSurface(static_cast<QtWayland::wl_surface *>(this)));
}
@@ -230,6 +233,7 @@ void QWaylandWindow::reset()
mSubSurfaceWindow = nullptr;
if (isInitialized()) {
emit wlSurfaceDestroyed();
+ QWriteLocker lock(&mSurfaceLock);
destroy();
}
mScreens.clear();
@@ -1142,6 +1146,10 @@ void QWaylandWindow::requestUpdate()
void QWaylandWindow::handleUpdate()
{
// TODO: Should sync subsurfaces avoid requesting frame callbacks?
+ QReadLocker lock(&mSurfaceLock);
+ if (!isInitialized()) {
+ return;
+ }
if (mFrameCallback) {
wl_callback_destroy(mFrameCallback);
diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
index fe24224f..97884ba4 100644
--- a/src/client/qwaylandwindow_p.h
+++ b/src/client/qwaylandwindow_p.h
@@ -53,6 +53,8 @@
#include <QtCore/QWaitCondition>
#include <QtCore/QMutex>
+#include <QtCore/QReadWriteLock>
+
#include <QtGui/QIcon>
#include <QtCore/QVariant>
#include <QtCore/QLoggingCategory>
@@ -277,6 +279,8 @@ private:
static QMutex mFrameSyncMutex;
static QWaylandWindow *mMouseGrab;
+ QReadWriteLock mSurfaceLock;
+
friend class QWaylandSubSurface;
};
--
2.22.0

40
0005-Client-Reset-frame-callback-timer-when-hiding-a-wind.patch Normal file
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@ -0,0 +1,40 @@
From 19e165aa58b4d6c2597e6732d6c7d1efe4c9b362 Mon Sep 17 00:00:00 2001
From: David Edmundson <davidedmundson@kde.org>
Date: Sun, 23 Jun 2019 13:25:16 +0200
Subject: [PATCH 5/5] Client: Reset frame callback timer when hiding a window
If we hide a window whilst a compositor has a pending frame to show,
it's possible the compositor will not render the frame and not return
the callback.
If this happens on the next window expose we can be left with
mFrameCallbackTimedOut still true causing isExposed() to remain false
and us to not send the next buffer when we later show the window again.
Change-Id: I507410415d1a930fd5fa736412055e68fdf6c1d3
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
---
src/client/qwaylandwindow.cpp | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index c6723aa7..f1be524b 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -243,6 +243,13 @@ void QWaylandWindow::reset()
mFrameCallback = nullptr;
}
+ int timerId = mFrameCallbackTimerId.fetchAndStoreOrdered(-1);
+ if (timerId != -1) {
+ killTimer(timerId);
+ }
+ mWaitingForFrameCallback = false;
+ mFrameCallbackTimedOut = false;
+
mMask = QRegion();
mQueuedBuffer = nullptr;
}
--
2.22.0

12
libqt5-qtwayland.changes
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@ -1,3 +1,15 @@
-------------------------------------------------------------------
Wed Jul 3 08:50:36 UTC 2019 - Fabian Vogt <fabian@ritter-vogt.de>
- Add patch from upstream 5.13 branch to fix crashes:
* 0001-Don-t-crash-if-we-start-a-drag-without-dragFocus.patch
- Add patch from upstream 5.12 branch to improve performance:
* 0002-Client-Fix-stuttering-when-the-GUI-thread-is-busy.patch
- Add patches from upstream code reviews to fix various issues:
* 0003-Client-Don-t-send-fake-SurfaceCreated-Destroyed-even.patch
* 0004-Client-Make-handleUpdate-aware-of-exposure-changes.patch
* 0005-Client-Reset-frame-callback-timer-when-hiding-a-wind.patch
------------------------------------------------------------------- -------------------------------------------------------------------
Wed Jun 19 11:24:47 UTC 2019 - fabian@ritter-vogt.de Wed Jun 19 11:24:47 UTC 2019 - fabian@ritter-vogt.de

11
libqt5-qtwayland.spec
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@ -31,6 +31,17 @@ Group: Development/Libraries/X11
Url: https://www.qt.io Url: https://www.qt.io
Source: https://download.qt.io/official_releases/qt/5.13/%{real_version}/submodules/%{tar_version}.tar.xz Source: https://download.qt.io/official_releases/qt/5.13/%{real_version}/submodules/%{tar_version}.tar.xz
Source1: baselibs.conf Source1: baselibs.conf
# PATCH-FIX-UPSTREAM
Patch1: 0001-Don-t-crash-if-we-start-a-drag-without-dragFocus.patch
# In 5.12 branch only, not merged to 5.13 yet
Patch2: 0002-Client-Fix-stuttering-when-the-GUI-thread-is-busy.patch
# Those aren't merged upstream yet
# https://codereview.qt-project.org/c/qt/qtwayland/+/265999
Patch3: 0003-Client-Don-t-send-fake-SurfaceCreated-Destroyed-even.patch
# https://codereview.qt-project.org/c/qt/qtwayland/+/265998
Patch4: 0004-Client-Make-handleUpdate-aware-of-exposure-changes.patch
# https://codereview.qt-project.org/c/qt/qtwayland/+/265997
Patch5: 0005-Client-Reset-frame-callback-timer-when-hiding-a-wind.patch
# PATCH-FIX-OPENSUSE # PATCH-FIX-OPENSUSE
Patch100: workaround-null-object.patch Patch100: workaround-null-object.patch
BuildRequires: fdupes BuildRequires: fdupes