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QOpenGlContext: Always unset current context in doneCurrent() 

Otherwise when no other context is made current until thread exit, the
QGuiGLThreadContext destructor will try to call doneCurrent() on an
already deleted context.

Change-Id: If55dd69a72b8ab4012780a449f6a02729dd0ed43
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
(cherry picked from commit cd1686e55f706048286cbc962bbe02032c2396cd)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 10c195b86432eaa430c6991c0fcb74c411407cdf)
bb10
David Redondo 2025-01-15 13:52:13 +01:00 committed by Qt Cherry-pick Bot
parent 952020ba66
commit ca04f4fedf
2 changed files with 33 additions and 5 deletions
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10
src/gui/kernel/qopenglcontext.cpp
View File

@ -743,13 +743,13 @@ bool QOpenGLContext::makeCurrent(QSurface *surface)
void QOpenGLContext::doneCurrent()
{
Q_D(QOpenGLContext);
if (!isValid())
return;
if (QOpenGLContext::currentContext() == this)
d->shareGroup->d_func()->deletePendingResources(this);
if (isValid()) {
if (QOpenGLContext::currentContext() == this)
d->shareGroup->d_func()->deletePendingResources(this);
d->platformGLContext->doneCurrent();
}
d->platformGLContext->doneCurrent();
QOpenGLContextPrivate::setCurrentContext(nullptr);
d->surface = nullptr;

28
tests/auto/gui/qopengl/tst_qopengl.cpp
View File

@ -84,6 +84,9 @@ private slots:
void bufferCreate();
void bufferMapRange();
void defaultQGLCurrentBuffer();
#if QT_CONFIG(egl)
void dontCrashOnInvalidContextThreadTeardown();
#endif
};
struct SharedResourceTracker
@ -1751,6 +1754,31 @@ void tst_QOpenGL::clipRect()
//QCOMPARE(fb.pixelColor(clipRect.right(), clipRect.top() + 1), QColor(Qt::red));
}
#if QT_CONFIG(egl)
void tst_QOpenGL::dontCrashOnInvalidContextThreadTeardown()
{
class Thread : public QThread
{
void run() override
{
auto context = std::make_unique<QOpenGLContext>();
QVERIFY(context->create());
QScopedPointer<QSurface> surface(createSurface(int(QSurface::Window)));
QVERIFY(context->makeCurrent(surface.data()));
auto eglContext = context->nativeInterface<QNativeInterface::QEGLContext>();
if (!eglContext) {
QSKIP("Need an egl context for this test");
}
eglContext->invalidateContext();
context->doneCurrent();
}
};
Thread thread;
thread.start();
thread.wait();
}
#endif
QTEST_MAIN(tst_QOpenGL)
#include "tst_qopengl.moc"