From 8a499bc50e92a798d6c29ae0996edd86e0bd4601 Mon Sep 17 00:00:00 2001
From: Ishi Tatsuyuki <ishitatsuyuki@gmail.com>
Date: Wed, 17 Mar 2021 00:51:13 +0900
Subject: [PATCH] Always close fill paths, fix #68

---
 piet-gpu/src/render_ctx.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/piet-gpu/src/render_ctx.rs b/piet-gpu/src/render_ctx.rs
index 73d1f27..419c9ec 100644
--- a/piet-gpu/src/render_ctx.rs
+++ b/piet-gpu/src/render_ctx.rs
@@ -303,6 +303,21 @@ impl PietGpuRenderContext {
     }
 
     fn encode_path(&mut self, path: impl Iterator<Item = PathEl>, is_fill: bool) {
+        if is_fill {
+            self.encode_path_inner(path.flat_map(|el| {
+                match el {
+                    PathEl::MoveTo(..) => {
+                        Some(PathEl::ClosePath)
+                    }
+                    _ => None
+                }.into_iter().chain(Some(el))
+            }).chain(Some(PathEl::ClosePath)), is_fill)
+        } else {
+            self.encode_path_inner(path, is_fill)
+        }
+    }
+
+    fn encode_path_inner(&mut self, path: impl Iterator<Item = PathEl>, is_fill: bool) {
         let flatten = false;
         if flatten {
             let mut start_pt = None;