update_routing_state()

void MayaFlux::Nodes::update_routing_state

(

RoutingState &

state

)

Updates the routing state for a node based on its current channel usage.

Parameters

state

The routing state to update

This function evaluates the current channel usage of a node and updates the routing state accordingly. It manages transitions between different routing phases (such as fade-in and fade-out(Active)) based on changes in channel counts, ensuring smooth audio output during dynamic reconfigurations of the processing graph.

Definition at line 127 of file NodeUtils.cpp.

{
    state.cycles_elapsed++;
 
    double progress = 0.;
    if (state.fade_cycles > 0) {
        progress = std::min<double>(1.0, static_cast<double>(state.cycles_elapsed) / state.fade_cycles);
    } else {
        for (uint32_t ch = 0; ch < 32; ++ch) {
            bool will_be_in = state.to_channels & (1 << ch);
            state.amount[ch] = will_be_in ? 1.0 : 0.0;
        }
        state.phase = RoutingState::NONE;
        return;
    }
 
    for (uint32_t ch = 0; ch < 32; ch++) {
        bool was_in = state.from_channels & (1 << ch);
        bool will_be_in = state.to_channels & (1 << ch);
 
        if (was_in && will_be_in) {
            state.amount[ch] = 1.0;
        } else if (was_in && !will_be_in) {
            state.amount[ch] = 1.0 - progress;
        } else if (!was_in && will_be_in) {
            state.amount[ch] = progress;
        } else {
            state.amount[ch] = 0.0;
        }
    }
 
    if (state.cycles_elapsed >= state.fade_cycles) {
        state.phase = RoutingState::COMPLETED;
    }
}

References MayaFlux::Nodes::RoutingState::amount, MayaFlux::Nodes::RoutingState::COMPLETED, MayaFlux::Nodes::RoutingState::cycles_elapsed, MayaFlux::Nodes::RoutingState::fade_cycles, MayaFlux::Nodes::RoutingState::from_channels, MayaFlux::Nodes::RoutingState::NONE, and MayaFlux::Nodes::RoutingState::to_channels.

Referenced by MayaFlux::Nodes::NodeGraphManager::update_routing_states_for_cycle().

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