33 lines
957 B
Diff
33 lines
957 B
Diff
From cf62deea98faf7e7e8a31c05d4d44c7d308374db Mon Sep 17 00:00:00 2001
|
|
From: Jeffy Chen <jeffy.chen@rock-chips.com>
|
|
Date: Fri, 5 Aug 2022 11:27:54 +0800
|
|
Subject: [PATCH 75/76] gl-renderer: Clear RGB when alpha is zero in fast path
|
|
|
|
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
|
|
---
|
|
libweston/renderer-gl/fragment.glsl | 8 ++++++--
|
|
1 file changed, 6 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/libweston/renderer-gl/fragment.glsl b/libweston/renderer-gl/fragment.glsl
|
|
index 4414b63..a90cbfa 100644
|
|
--- a/libweston/renderer-gl/fragment.glsl
|
|
+++ b/libweston/renderer-gl/fragment.glsl
|
|
@@ -253,8 +253,12 @@ main()
|
|
/* Fast path for disabled color management */
|
|
|
|
if (c_input_is_premult) {
|
|
- /* View alpha (opacity) */
|
|
- color *= alpha;
|
|
+ if (color.a == 0.0) {
|
|
+ color.rgb = vec3(0, 0, 0);
|
|
+ } else {
|
|
+ /* View alpha (opacity) */
|
|
+ color *= alpha;
|
|
+ }
|
|
} else {
|
|
/* View alpha (opacity) */
|
|
color.a *= alpha;
|
|
--
|
|
2.20.1
|
|
|