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video: allow configuring the output brightness

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This commit is contained in:
Julian Orth 2025-04-21 15:41:52 +02:00
parent 7d0c9e2c3f
commit 27025a565c
19 changed files with 343 additions and 40 deletions
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21
src/ifs/wl_output.rs
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@ -122,6 +122,7 @@ pub struct PersistentOutputState {
pub vrr_mode: Cell<&'static VrrMode>,
pub vrr_cursor_hz: Cell<Option<f64>>,
pub tearing_mode: Cell<&'static TearingMode>,
pub brightness: Cell<Option<f64>>,
}
#[derive(Eq, PartialEq, Hash, Debug)]
@ -332,9 +333,21 @@ impl WlOutputGlobal {
pub fn update_color_description(&self) -> bool {
let mut luminance = Luminance::SRGB;
let tf = match self.btf.get() {
BackendTransferFunction::Default => TransferFunction::Srgb,
BackendTransferFunction::Default => {
if let Some(brightness) = self.persistent.brightness.get() {
let output_max = match self.luminance {
None => 80.0,
Some(v) => v.max,
};
luminance.white.0 = luminance.max.0 * brightness / output_max;
}
TransferFunction::Srgb
}
BackendTransferFunction::Pq => {
luminance = Luminance::ST2084_PQ;
if let Some(brightness) = self.persistent.brightness.get() {
luminance.white.0 = brightness;
}
TransferFunction::St2084Pq
}
};
@ -368,6 +381,12 @@ impl WlOutputGlobal {
self.linear_color_description.set(cd_linear.clone());
self.color_description.set(cd.clone()).id != cd.id
}
pub fn set_brightness(&self, brightness: Option<f64>) {
self.persistent.brightness.set(brightness);
self.update_color_description();
self.state.damage(self.pos.get());
}
}
global_base!(WlOutputGlobal, WlOutput, WlOutputError);