Method hasSequentialOnlyNodeUpstream

Engine/NodeInputs.cpp:1725–1747

bool
Node::hasSequentialOnlyNodeUpstream(std::string & nodeName) const
{
    ///Just take into account sequentiallity for writers
    if ( (_imp->effect->getSequentialPreference() == eSequentialPreferenceOnlySequential) && _imp->effect->isWriter() ) {
        nodeName = getScriptName_mt_safe();

        return true;
    } else {
        QMutexLocker l(&_imp->inputsMutex);

        for (InputsV::iterator it = _imp->inputs.begin(); it != _imp->inputs.end(); ++it) {
            NodePtr input = it->lock();
            if ( input && input->isActivated() && input->hasSequentialOnlyNodeUpstream(nodeName) && input->getEffectInstance()->isWriter() ) {
                nodeName = input->getScriptName_mt_safe();

                return true;
            }
        }

        return false;
    }
}

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