diff options
Diffstat (limited to 'src/quick/items/qquickopenglshadereffect.cpp')
| -rw-r--r-- | src/quick/items/qquickopenglshadereffect.cpp | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/quick/items/qquickopenglshadereffect.cpp b/src/quick/items/qquickopenglshadereffect.cpp index cad598d2c0..76cb3ace5c 100644 --- a/src/quick/items/qquickopenglshadereffect.cpp +++ b/src/quick/items/qquickopenglshadereffect.cpp @@ -221,7 +221,7 @@ QQuickOpenGLShaderEffectCommon::~QQuickOpenGLShaderEffectCommon() clearSignalMappers(shaderType); } -void QQuickOpenGLShaderEffectCommon::disconnectPropertySignals(QQuickItem *item, Key::ShaderType shaderType) +void QQuickOpenGLShaderEffectCommon::disconnectPropertySignals(QObject *obj, Key::ShaderType shaderType) { for (int i = 0; i < uniformData[shaderType].size(); ++i) { if (signalMappers[shaderType].at(i) == 0) @@ -229,12 +229,11 @@ void QQuickOpenGLShaderEffectCommon::disconnectPropertySignals(QQuickItem *item, const UniformData &d = uniformData[shaderType].at(i); auto mapper = signalMappers[shaderType].at(i); void *a = mapper; - QObjectPrivate::disconnect(item, mapper->signalIndex(), &a); + QObjectPrivate::disconnect(obj, mapper->signalIndex(), &a); if (d.specialType == UniformData::Sampler || d.specialType == UniformData::SamplerExternal) { QQuickItem *source = qobject_cast<QQuickItem *>(qvariant_cast<QObject *>(d.value)); if (source) { - if (item->window()) - QQuickItemPrivate::get(source)->derefWindow(); + QQuickItemPrivate::get(source)->derefWindow(); QObject::disconnect(source, SIGNAL(destroyed(QObject*)), host, SLOT(sourceDestroyed(QObject*))); } } @@ -245,7 +244,11 @@ void QQuickOpenGLShaderEffectCommon::connectPropertySignals(QQuickItem *item, const QMetaObject *itemMetaObject, Key::ShaderType shaderType) { - QQmlPropertyCache *propCache = QQmlData::ensurePropertyCache(qmlEngine(item), item); + auto engine = qmlEngine(item); + if (!engine) + return; + + QQmlPropertyCache *propCache = QQmlData::ensurePropertyCache(engine, item); for (int i = 0; i < uniformData[shaderType].size(); ++i) { if (signalMappers[shaderType].at(i) == 0) continue; @@ -317,7 +320,8 @@ void QQuickOpenGLShaderEffectCommon::lookThroughShaderCode(QQuickItem *item, Key::ShaderType shaderType, const QByteArray &code) { - QQmlPropertyCache *propCache = QQmlData::ensurePropertyCache(qmlEngine(item), item); + auto engine = qmlEngine(item); + QQmlPropertyCache *propCache = (engine) ? QQmlData::ensurePropertyCache(engine, item) : nullptr; int index = 0; int typeIndex = -1; int typeLength = 0; @@ -350,9 +354,11 @@ void QQuickOpenGLShaderEffectCommon::lookThroughShaderCode(QQuickItem *item, } else if (nameLength > srLen && qstrncmp("qt_SubRect_", s + nameIndex, srLen) == 0) { d.specialType = UniformData::SubRect; } else { - if (QQmlPropertyData *pd = propCache->property(QString::fromUtf8(d.name), nullptr, nullptr)) { - if (!pd->isFunction()) - d.propertyIndex = pd->coreIndex(); + if (propCache) { + if (QQmlPropertyData *pd = propCache->property(QString::fromUtf8(d.name), nullptr, nullptr)) { + if (!pd->isFunction()) + d.propertyIndex = pd->coreIndex(); + } } const int mappedId = uniformData[shaderType].size() | (shaderType << 16); mapper = new QtPrivate::MappedSlotObject([this, mappedId](){ |