From 938d6fc052bbe59295039ff4d6931f0d4ec94576 Mon Sep 17 00:00:00 2001
From: Chad Brokaw <cbrokaw@gmail.com>
Date: Thu, 19 May 2022 16:59:14 -0400
Subject: [PATCH] Add clip mode for blends

This matches the changes in the fix_blends PR.
---
 piet-scene/src/scene/blend.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/piet-scene/src/scene/blend.rs b/piet-scene/src/scene/blend.rs
index 09b6e50..d6aa080 100644
--- a/piet-scene/src/scene/blend.rs
+++ b/piet-scene/src/scene/blend.rs
@@ -34,6 +34,8 @@ pub enum Mix {
     Saturation = 13,
     Color = 14,
     Luminosity = 15,
+    // Clip is the same as normal, but doesn't always push a blend group.
+    Clip = 128,
 }
 
 /// Defines the layer composition function for a blend operation.
@@ -76,7 +78,7 @@ impl Blend {
 impl Default for Blend {
     fn default() -> Self {
         Self {
-            mix: Mix::Normal,
+            mix: Mix::Clip,
             compose: Compose::SrcOver,
         }
     }