Struct DoubleBufferState 

pub struct DoubleBufferState {
    pub header_ptr: u32,
    pub current_buffer: usize,
    pub callback_addr: u32,
    pub chan_ptr: u32,
    pub sample_rate: u32,
    pub num_channels: usize,
    pub sample_size: usize,
    pub last_buffer_seen: bool,
    pub waiting_for_callback: bool,
    pub pending_callback_buffers: [bool; 2],
}

Double-buffer playback state for SndPlayDoubleBuffer. Sound 1994, 2-111 to 2-113

Fields

header_ptr: u32

Guest pointer to the SndDoubleBufferHeader record.

current_buffer: usize

Index of the buffer currently being played (0 or 1).

callback_addr: u32

Guest pointer to the doubleback callback procedure.

chan_ptr: u32

Guest pointer to the channel.

sample_rate: u32

Sample rate as Mac Fixed 16.16.

num_channels: usize

Number of interleaved channels in each buffer.

sample_size: usize

Bits per sample in each channel.

last_buffer_seen: bool

Whether we’ve seen dbLastBuffer and should stop after this buffer.

waiting_for_callback: bool

Whether we’re waiting for the callback to finish refilling.

pending_callback_buffers: [bool; 2]

Which buffer slots currently have an outstanding doubleback refill.

Trait Implementations

impl Clone for DoubleBufferState

fn clone(&self) -> DoubleBufferState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DoubleBufferState

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

Formats the value using the given formatter.