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//! Render texture, and whether native motion goes through it (§4.14).
/// Texture the box renders motion with (`OPTION(RENDER)`'s `mode`). [`Off`](RenderMode::Off) is the
/// paced fill; the others render the device's learned report texture and differ only in the path
/// smoother. Independent of [`EmitPace`](crate::EmitPace), which caps the rendered rate.
///
/// The model is [ABCurves](https://github.com/optima-manent/ABCurves) (MIT).
#[repr(u8)]
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
pub enum RenderMode {
/// Paced fill, renderer off.
Off = 0,
/// Rendered with the bit-exact triangular smoother.
Stock = 1,
/// Rendered with the smoother's onset ramped, not stepped (factory default).
#[default]
Despiked = 2,
/// Rendered with no smoother; the model receives raw injection.
Unsmoothed = 3,
}
impl RenderMode {
/// Wire `mode` byte.
pub(crate) fn to_wire(self) -> u8 {
self as u8
}
/// Decodes a wire `mode` byte; `None` if unknown.
pub fn from_u8(v: u8) -> Option<RenderMode> {
Some(match v {
0 => RenderMode::Off,
1 => RenderMode::Stock,
2 => RenderMode::Despiked,
3 => RenderMode::Unsmoothed,
_ => return None,
})
}
}
/// Configured [`RenderMode`], whether native motion goes through it, and whether a profile has
/// armed (§4.14).
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, Default)]
pub struct RenderStatus {
/// Render texture.
pub mode: RenderMode,
/// Whether the model renders native motion instead of relaying it.
pub full: bool,
/// Whether the box has learned a profile for the attached device. Nothing renders until then,
/// so this separates a box set to a mode from one rendering with it.
pub ready: bool,
}
impl RenderStatus {
/// Decodes a `RESP(OPTIONS, RENDER)` payload (§4.14).
pub(crate) fn from_payload(p: &[u8]) -> Option<RenderStatus> {
if p.len() < 5 {
return None;
}
Some(RenderStatus {
mode: RenderMode::from_u8(p[2])?,
full: p[3] != 0,
ready: p[4] != 0,
})
}
}