109 lines
2.9 KiB
Rust
109 lines
2.9 KiB
Rust
use ether_dream::{dac};
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use crate::conf::EtherDreamConf;
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use crate::device::{Device, Status, PlaybackState};
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use crate::errors::{LJError, LJResult};
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use crate::point::Point;
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use chrono::Utc;
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pub struct EtherdreamDevice {
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pub conf: EtherDreamConf,
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dac: dac,
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sent_points: u16,
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state: PlaybackState,
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lack: String,
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last_traced_at : String
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}
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impl EtherdreamDevice {
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pub fn new(conf: &EtherDreamConf) -> LJResult<Self> {
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let id = conf.id;
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// // Todo : use the config
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// let (dac_broadcast, source_addr) = ether_dream::recv_dac_broadcasts()
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// .expect("failed to bind to UDP socket")
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// .filter_map(Result::ok)
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// .next()
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// .unwrap();
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// let mac_address = dac::MacAddress(dac_broadcast.mac_address);
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//
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// println!(
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// "Discovered DAC \"{}\" at \"{}\"! Connecting...",
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// mac_address, source_addr
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// );
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// Establish the TCP connection.
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let mut stream = dac::stream::connect(&dac_broadcast, source_addr.ip().clone()).unwrap();
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// If we want to create an animation (in our case a moving sine wave) we need a frame rate.
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let frames_per_second = 60.0;
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// Lets use the DAC at an eighth the maximum scan rate.
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let points_per_second = stream.dac().max_point_rate / 32;
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// Determine the number of points per frame given our target frame and point rates.
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let points_per_frame = (points_per_second as f32 / frames_per_second) as u16;
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// Prepare the DAC's playback engine and await the repsonse.
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stream
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.queue_commands()
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.prepare_stream()
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.submit()
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.err()
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.map(|err| {
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eprintln!(
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"err occurred when submitting PREPARE_STREAM \
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command and listening for response: {}",
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err
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);
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});
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println!("Ready for playback!");
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Ok(Self {
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conf: (*conf).clone(),
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dac,
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sent_points: 0,
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state: PlaybackState::PREPARE,
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lack: "".to_string(),
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last_traced_at: "1985-04-12T23:20:50.52Z".to_string()
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})
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}
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}
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impl Device for EtherdreamDevice {
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fn status(&self) -> Status {
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let lack = self.lack.clone();
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Status {
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last_traced_at: self.last_traced_at.clone(),
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properties: vec!["foo".to_string()],
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playback_state: self.state,
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capacity: self.sent_points,
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lack,
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}
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}
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fn draw(&mut self,
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line: Vec<Point>,
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speed: u32,
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) -> LJResult<()> {
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self.state = PlaybackState::IDLE;
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while let Ok(DeviceStatus::NotReady) = self.dac.status() {}
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self.state = PlaybackState::PLAYING;
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let points: Vec<helios_dac::Point> = line.into_iter().map(|p| p.into()).collect();
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let frame = Frame::new(speed, points.clone());
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self.dac.write_frame(frame.clone())?;
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self.sent_points = points.len() as u16;
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self.last_traced_at = Utc::now().to_rfc3339();
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Ok(())
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}
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fn stop(&mut self) -> LJResult<()> {
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self.dac.stop()?;
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Ok(())
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}
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}
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