From 61b19e4198451b35eb121b09d4831c2d78723e6f Mon Sep 17 00:00:00 2001
From: Victor Brekenfeld <github@drakulix.de>
Date: Tue, 4 Jan 2022 18:05:43 +0100
Subject: [PATCH] renderer: fixup damage calculations for smaller buffer sizes

---
 src/backend/renderer/utils/mod.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/backend/renderer/utils/mod.rs b/src/backend/renderer/utils/mod.rs
index bbf65a8..08323a7 100644
--- a/src/backend/renderer/utils/mod.rs
+++ b/src/backend/renderer/utils/mod.rs
@@ -88,7 +88,7 @@ where
     let mut result = Ok(());
     let damage = damage
         .iter()
-        .map(|geo| geo.to_f64().to_physical(scale).to_i32_round())
+        .map(|geo| geo.to_f64().to_physical(scale).to_i32_up())
         .collect::<Vec<_>>();
     with_surface_tree_upward(
         surface,
@@ -160,7 +160,12 @@ where
 
                     let rect = Rectangle::<i32, Physical>::from_loc_and_size(
                         surface_offset.to_f64().to_physical(scale).to_i32_round(),
-                        buffer_dimensions.unwrap(),
+                        buffer_dimensions
+                            .unwrap_or_default()
+                            .to_logical(buffer_scale)
+                            .to_f64()
+                            .to_physical(scale)
+                            .to_i32_round(),
                     );
                     let new_damage = damage
                         .iter()