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autocommit 2022-04-05 18:28:42 CEST

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Julian Orth 2022-04-05 18:28:42 +02:00
parent 1f05ea431e
commit a3e9f21fc5
29 changed files with 568 additions and 225 deletions
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20
src/drm/drm.rs
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@ -33,6 +33,7 @@ pub use sys::{
drm_mode_modeinfo, DRM_CLIENT_CAP_ATOMIC, DRM_MODE_ATOMIC_ALLOW_MODESET,
DRM_MODE_ATOMIC_NONBLOCK, DRM_MODE_PAGE_FLIP_EVENT,
};
use crate::backend;
#[derive(Debug, Error)]
pub enum DrmError {
@ -597,13 +598,21 @@ impl DrmModeInfo {
}
}
pub fn refresh_rate(&self) -> u32 {
let clock_mhz = self.clock as u64 * 1_000_000;
pub fn to_backend(&self) -> backend::Mode {
backend::Mode {
width: self.hdisplay as _,
height: self.vdisplay as _,
refresh_rate_millihz: self.refresh_rate_millihz(),
}
}
pub fn refresh_rate_millihz(&self) -> u32 {
let clock_millihz = self.clock as u64 * 1_000_000;
let htotal = self.htotal as u64;
let vtotal = self.vtotal as u64;
(((clock_mhz / htotal) + (vtotal / 2)) / vtotal) as u32
(((clock_millihz / htotal) + (vtotal / 2)) / vtotal) as u32
// simplifies to
// clock_mhz / (htotal * vtotal) + 1/2
// clock_millihz / (htotal * vtotal) + 1/2
// why round up (+1/2) instead of down?
}
}
@ -725,6 +734,7 @@ pub enum ConnectorType {
WRITEBACK,
SPI,
USB,
EmbeddedWindow,
}
impl Display for ConnectorType {
@ -751,6 +761,7 @@ impl Display for ConnectorType {
Self::WRITEBACK => "Writeback",
Self::SPI => "SPI",
Self::USB => "USB",
Self::EmbeddedWindow => "EmbeddedWindow",
};
f.write_str(s)
}
@ -808,6 +819,7 @@ impl Into<u32> for ConnectorType {
Self::WRITEBACK => sys::DRM_MODE_CONNECTOR_WRITEBACK,
Self::SPI => sys::DRM_MODE_CONNECTOR_SPI,
Self::USB => sys::DRM_MODE_CONNECTOR_USB,
Self::EmbeddedWindow => sys::DRM_MODE_CONNECTOR_Unknown,
}
}
}