Implement block-out-from window rule, fix alpha on window screenshots

niri-visual-tests/src/cases/layout.rs

@@ -3,6 +3,7 @@ use std::time::Duration;
 
 use niri::layout::workspace::ColumnWidth;
 use niri::layout::{LayoutElement as _, Options};
+use niri::render_helpers::RenderTarget;
 use niri::utils::get_monotonic_time;
 use niri_config::Color;
 use smithay::backend::renderer::element::RenderElement;
@@ -222,7 +223,7 @@ impl TestCase for Layout {
         self.layout
             .monitor_for_output(&self.output)
             .unwrap()
-            .render_elements(renderer)
+            .render_elements(renderer, RenderTarget::Output)
             .into_iter()
             .map(|elem| Box::new(elem) as _)
             .collect()

niri-visual-tests/src/cases/tile.rs

@@ -2,6 +2,7 @@ use std::rc::Rc;
 use std::time::Duration;
 
 use niri::layout::Options;
+use niri::render_helpers::RenderTarget;
 use niri_config::Color;
 use smithay::backend::renderer::element::RenderElement;
 use smithay::backend::renderer::gles::GlesRenderer;
@@ -110,6 +111,7 @@ impl TestCase for Tile {
                 Scale::from(1.),
                 size.to_logical(1),
                 true,
+                RenderTarget::Output,
             )
             .map(|elem| Box::new(elem) as _)
             .collect()

niri-visual-tests/src/cases/window.rs

@@ -1,4 +1,5 @@
 use niri::layout::LayoutElement;
+use niri::render_helpers::RenderTarget;
 use smithay::backend::renderer::element::RenderElement;
 use smithay::backend::renderer::gles::GlesRenderer;
 use smithay::utils::{Logical, Physical, Point, Scale, Size};
@@ -49,7 +50,13 @@ impl TestCase for Window {
         let location = Point::from(((size.w - win_size.w) / 2, (size.h - win_size.h) / 2));
 
         self.window
-            .render(renderer, location, Scale::from(1.), 1.)
+            .render(
+                renderer,
+                location,
+                Scale::from(1.),
+                1.,
+                RenderTarget::Output,
+            )
             .into_iter()
             .map(|elem| Box::new(elem) as _)
             .collect()

niri-visual-tests/src/test_window.rs

@@ -4,6 +4,7 @@ use std::rc::Rc;
 
 use niri::layout::{LayoutElement, LayoutElementRenderElement};
 use niri::render_helpers::renderer::NiriRenderer;
+use niri::render_helpers::RenderTarget;
 use niri::window::ResolvedWindowRules;
 use smithay::backend::renderer::element::solid::{SolidColorBuffer, SolidColorRenderElement};
 use smithay::backend::renderer::element::{Id, Kind};
@@ -147,6 +148,7 @@ impl LayoutElement for TestWindow {
         location: Point<i32, Logical>,
         scale: Scale<f64>,
         alpha: f32,
+        _target: RenderTarget,
     ) -> Vec<LayoutElementRenderElement<R>> {
         let inner = self.inner.borrow();