Struct ChannelState 

pub struct ChannelState {
    pub tone_period: u16,
    pub frequency_hz: Option<f32>,
    pub note_name: Option<&'static str>,
    pub midi_note: Option<u8>,
    pub amplitude: u8,
    pub amplitude_normalized: f32,
    pub tone_enabled: bool,
    pub noise_enabled: bool,
    pub envelope_enabled: bool,
}

State of a single YM2149 channel extracted from registers.

Fields

tone_period: u16

Tone period from registers (12-bit, 0-4095).

frequency_hz: Option<f32>

Calculated frequency in Hz (None if period is 0).

note_name: Option<&'static str>

Musical note name (e.g., “A4”, “C#5”).

midi_note: Option<u8>

MIDI note number (21-108 for piano range, None if out of range).

amplitude: u8

Raw amplitude value (0-15).

amplitude_normalized: f32

Normalized amplitude (0.0-1.0) for visualization.

tone_enabled: bool

Whether tone output is enabled for this channel.

noise_enabled: bool

Whether noise output is enabled for this channel.

envelope_enabled: bool

Whether envelope mode is enabled (bit 4 of amplitude register).

Trait Implementations

impl Clone for ChannelState

fn clone(&self) -> ChannelState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ChannelState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ChannelState

fn default() -> ChannelState

Returns the “default value” for a type.

impl Copy for ChannelState