Add alpha parameter to shaders

Lets us add extra opacity.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/layout/focus_ring.rs b/src/layout/focus_ring.rs
index 3d97cb02..411a73a5 100644
--- a/src/layout/focus_ring.rs
+++ b/src/layout/focus_ring.rs
@@ -2,7 +2,7 @@ use std::iter::zip;
 
 use arrayvec::ArrayVec;
 use niri_config::{CornerRadius, Gradient, GradientRelativeTo};
-use smithay::backend::renderer::element::Kind;
+use smithay::backend::renderer::element::{Element as _, Kind};
 use smithay::utils::{Logical, Point, Rectangle, Size};
 
 use crate::niri_render_elements;
@@ -53,6 +53,7 @@ impl FocusRing {
         }
     }
 
+    #[allow(clippy::too_many_arguments)]
     pub fn update_render_elements(
         &mut self,
         win_size: Size<f64, Logical>,
@@ -61,6 +62,7 @@ impl FocusRing {
         view_rect: Rectangle<f64, Logical>,
         radius: CornerRadius,
         scale: f64,
+        alpha: f32,
     ) {
         let width = self.config.width.0;
         self.full_size = win_size + Size::from((width, width)).upscale(2.);
@@ -181,6 +183,7 @@ impl FocusRing {
                     rounded_corner_border_width,
                     radius,
                     scale as f32,
+                    alpha,
                 );
             }
         } else {
@@ -199,6 +202,7 @@ impl FocusRing {
                 rounded_corner_border_width,
                 radius,
                 scale as f32,
+                alpha,
             );
         }
 
@@ -229,7 +233,9 @@ impl FocusRing {
             let elem = if self.use_border_shader && has_border_shader {
                 border.clone().with_location(location).into()
             } else {
-                SolidColorRenderElement::from_buffer(buffer, location, 1., Kind::Unspecified).into()
+                let alpha = border.alpha();
+                SolidColorRenderElement::from_buffer(buffer, location, alpha, Kind::Unspecified)
+                    .into()
             };
             rv.push(elem);
         };