From cf78ac45690da3e2b035f55e4fb654da5c0c8e48 Mon Sep 17 00:00:00 2001
From: Patrick Walton <pcwalton@mimiga.net>
Date: Mon, 30 Mar 2020 16:19:03 -0700
Subject: [PATCH] Fix image pattern texture atlas logic.

---
 canvas/src/lib.rs | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/canvas/src/lib.rs b/canvas/src/lib.rs
index 89ec7a50..167da7b1 100644
--- a/canvas/src/lib.rs
+++ b/canvas/src/lib.rs
@@ -448,16 +448,18 @@ impl State {
     }
 
     fn resolve_paint<'a>(&self, paint: &'a Paint) -> Cow<'a, Paint> {
-        if self.transform.is_identity() {
-            return Cow::Borrowed(paint);
-        }
-        if let Paint::Pattern(ref pattern) = *paint {
-            if !self.image_smoothing_enabled ==
-                    pattern.flags.contains(PatternFlags::NO_SMOOTHING) {
-                return Cow::Borrowed(paint)
+        let mut must_copy = !self.transform.is_identity();
+        if !must_copy {
+            if let Paint::Pattern(ref pattern) = *paint {
+                must_copy = !self.image_smoothing_enabled !=
+                    pattern.flags.contains(PatternFlags::NO_SMOOTHING);
             }
         }
 
+        if !must_copy {
+            return Cow::Borrowed(paint);
+        }
+
         let mut paint = (*paint).clone();
         paint.apply_transform(&self.transform);
         if let Paint::Pattern(ref mut pattern) = paint {