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use super::Operation;
use crate::{
CPUControlFlags, DriverError, FPGAControlFlags, STMFocus, TxDatagram,
FOCUS_STM_BODY_INITIAL_SIZE, FOCUS_STM_BODY_SUBSEQUENT_SIZE, FOCUS_STM_BUF_SIZE_MAX,
FOCUS_STM_SAMPLING_FREQ_DIV_MIN,
};
use anyhow::Result;
#[derive(Default, Clone, Copy)]
pub struct FocusSTMProps {
pub freq_div: u32,
pub sound_speed: f64,
pub start_idx: Option<u16>,
pub finish_idx: Option<u16>,
}
pub struct FocusSTM {
sent: usize,
points: Vec<Vec<STMFocus>>,
tr_num_min: usize,
props: FocusSTMProps,
}
impl FocusSTM {
pub fn new(points: Vec<Vec<STMFocus>>, tr_num_min: usize, props: FocusSTMProps) -> Self {
Self {
sent: 0,
points,
tr_num_min,
props,
}
}
}
impl FocusSTM {
fn get_send_size(total_size: usize, sent: usize, tr_num_min: usize) -> usize {
let data_len = tr_num_min * std::mem::size_of::<u16>();
let max_size = if sent == 0 {
(data_len - FOCUS_STM_BODY_INITIAL_SIZE) / std::mem::size_of::<STMFocus>()
} else {
(data_len - FOCUS_STM_BODY_SUBSEQUENT_SIZE) / std::mem::size_of::<STMFocus>()
};
(total_size - sent).min(max_size)
}
}
impl Operation for FocusSTM {
fn pack(&mut self, tx: &mut TxDatagram) -> Result<()> {
tx.header_mut().cpu_flag.remove(CPUControlFlags::WRITE_BODY);
tx.header_mut().cpu_flag.remove(CPUControlFlags::MOD_DELAY);
tx.header_mut().cpu_flag.remove(CPUControlFlags::STM_BEGIN);
tx.header_mut().cpu_flag.remove(CPUControlFlags::STM_END);
tx.header_mut()
.fpga_flag
.set(FPGAControlFlags::STM_MODE, true);
tx.header_mut()
.fpga_flag
.remove(FPGAControlFlags::STM_GAIN_MODE);
tx.num_bodies = 0;
if self.is_finished() {
return Ok(());
}
if self.points[0].len() > FOCUS_STM_BUF_SIZE_MAX {
return Err(DriverError::FocusSTMPointSizeOutOfRange(self.points[0].len()).into());
}
if let Some(idx) = self.props.start_idx {
if idx as usize >= self.points[0].len() {
return Err(DriverError::STMStartIndexOutOfRange.into());
}
tx.header_mut()
.fpga_flag
.set(FPGAControlFlags::USE_START_IDX, true);
} else {
tx.header_mut()
.fpga_flag
.set(FPGAControlFlags::USE_START_IDX, false);
}
if let Some(idx) = self.props.finish_idx {
if idx as usize >= self.points[0].len() {
return Err(DriverError::STMFinishIndexOutOfRange.into());
}
tx.header_mut()
.fpga_flag
.set(FPGAControlFlags::USE_FINISH_IDX, true);
} else {
tx.header_mut()
.fpga_flag
.set(FPGAControlFlags::USE_FINISH_IDX, false);
}
let send_size = Self::get_send_size(self.points[0].len(), self.sent, self.tr_num_min);
if self.sent == 0 {
if self.props.freq_div < FOCUS_STM_SAMPLING_FREQ_DIV_MIN {
return Err(DriverError::FocusSTMFreqDivOutOfRange(self.props.freq_div).into());
}
tx.header_mut()
.cpu_flag
.set(CPUControlFlags::STM_BEGIN, true);
let sound_speed = (self.props.sound_speed / 1e3 * 1024.0).round() as u32;
(0..tx.num_devices()).for_each(|idx| {
let d = tx.body_mut(idx);
let s = &self.points[idx];
d.focus_stm_initial_mut().set_size(send_size as _);
d.focus_stm_initial_mut().set_freq_div(self.props.freq_div);
d.focus_stm_initial_mut().set_sound_speed(sound_speed);
d.focus_stm_initial_mut()
.set_points(&s[self.sent..self.sent + send_size]);
d.focus_stm_initial_mut()
.set_start_idx(self.props.start_idx.unwrap_or(0));
d.focus_stm_initial_mut()
.set_finish_idx(self.props.finish_idx.unwrap_or(0));
});
} else {
(0..tx.num_devices()).for_each(|idx| {
let d = tx.body_mut(idx);
let s = &self.points[idx];
d.focus_stm_subsequent_mut().set_size(send_size as _);
d.focus_stm_subsequent_mut()
.set_points(&s[self.sent..self.sent + send_size]);
});
}
tx.header_mut()
.cpu_flag
.set(CPUControlFlags::WRITE_BODY, true);
if self.sent + send_size == self.points[0].len() {
tx.header_mut().cpu_flag.set(CPUControlFlags::STM_END, true);
}
tx.num_bodies = tx.num_devices();
self.sent += send_size;
Ok(())
}
fn init(&mut self) {
self.sent = 0;
}
fn is_finished(&self) -> bool {
self.sent == self.points[0].len()
}
}