From 7222a0901d7953210d3e270f01acd510d34ee354 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <mail@baedert.org>
Date: Thu, 1 Oct 2020 06:18:37 +0200
Subject: unblurred outset shadow shader: Use premultiply()

---
 gsk/resources/glsl/unblurred_outset_shadow.glsl | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'gsk')

diff --git a/gsk/resources/glsl/unblurred_outset_shadow.glsl b/gsk/resources/glsl/unblurred_outset_shadow.glsl
index fe7ad742d3..f110370412 100644
--- a/gsk/resources/glsl/unblurred_outset_shadow.glsl
+++ b/gsk/resources/glsl/unblurred_outset_shadow.glsl
@@ -11,9 +11,7 @@ _OUT_ _GSK_ROUNDED_RECT_UNIFORM_ transformed_inside_outline;
 void main() {
   gl_Position = u_projection * u_modelview * vec4(aPosition, 0.0, 1.0);
 
-  final_color = u_color;
-  final_color.rgb *= final_color.a;
-  final_color *= u_alpha;
+  final_color = gsk_premultiply(u_color) * u_alpha;
 
   GskRoundedRect inside = gsk_create_rect(u_outline_rect);
   GskRoundedRect outside = gsk_rounded_rect_shrink(inside, vec4(- u_spread));
-- 
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