extract_value()

double MayaFlux::Nodes::Input::TabletNode::extract_value ( const Core::InputValue &  value )

overrideprotectedvirtual

Extract a scalar value from an InputValue.

Parameters

value

The input value to extract from

Returns

Scalar value for smoothing/output

Override in derived classes for specific input types. Default handles SCALAR and MIDI CC values.

Reimplemented from MayaFlux::Nodes::Input::InputNode.

Definition at line 13 of file TabletNode.cpp.

{
    if (value.type != Core::InputValue::Type::VECTOR) {
        return m_last_output;
    }
 
    const auto& vec = value.as_vector();
    if (vec.size() < Core::TabletFrame::SLOT_COUNT) {
        return m_last_output;
    }
 
    std::copy_n(vec.begin(), Core::TabletFrame::SLOT_COUNT, m_frame.begin());
    m_frame_pending.store(true, std::memory_order_release);
 
    if (m_config.state_bit) {
        const auto state = static_cast<uint32_t>(m_frame[Core::TabletFrame::STATE]);
        const auto bit = static_cast<uint32_t>(*m_config.state_bit);
        return (state & bit) != 0U ? 1.0 : 0.0;
    }
 
    if (m_config.button_bit) {
        const auto mask = static_cast<uint32_t>(m_frame[Core::TabletFrame::BUTTONS]);
        return (mask & (1U << *m_config.button_bit)) != 0U ? 1.0 : 0.0;
    }
 
    if (m_config.slot >= Core::TabletFrame::SLOT_COUNT) {
        return m_config.default_value;
    }
 
    return m_frame[m_config.slot];
}

References MayaFlux::Nodes::Input::TabletConfig::button_bit, MayaFlux::Core::TabletFrame::BUTTONS, MayaFlux::Nodes::Input::InputConfig::default_value, m_config, m_frame, m_frame_pending, MayaFlux::Nodes::Node::m_last_output, MayaFlux::Nodes::Input::TabletConfig::slot, MayaFlux::Core::TabletFrame::SLOT_COUNT, MayaFlux::Core::TabletFrame::STATE, MayaFlux::Nodes::Input::TabletConfig::state_bit, value, and MayaFlux::Core::InputValue::VECTOR.