1*4882a593SmuzhiyunFrom 5286cbfe9cf2f66ff30de65c20d8005a6e85e3e7 Mon Sep 17 00:00:00 2001
2*4882a593SmuzhiyunFrom: Jeffy Chen <jeffy.chen@rock-chips.com>
3*4882a593SmuzhiyunDate: Fri, 5 Aug 2022 11:27:54 +0800
4*4882a593SmuzhiyunSubject: [PATCH 74/92] gl-renderer: Clear RGB when alpha is zero in fast path
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunSigned-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
7*4882a593Smuzhiyun---
8*4882a593Smuzhiyun libweston/renderer-gl/fragment.glsl | 2 ++
9*4882a593Smuzhiyun 1 file changed, 2 insertions(+)
10*4882a593Smuzhiyun
11*4882a593Smuzhiyundiff --git a/libweston/renderer-gl/fragment.glsl b/libweston/renderer-gl/fragment.glsl
12*4882a593Smuzhiyunindex a950578..e294afd 100644
13*4882a593Smuzhiyun--- a/libweston/renderer-gl/fragment.glsl
14*4882a593Smuzhiyun+++ b/libweston/renderer-gl/fragment.glsl
15*4882a593Smuzhiyun@@ -288,6 +288,8 @@ main()
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun 	if (c_need_color_pipeline)
18*4882a593Smuzhiyun 		color = color_pipeline(color); /* Produces straight alpha */
19*4882a593Smuzhiyun+	else if (color.a == 0.0)
20*4882a593Smuzhiyun+		color.rgb = vec3(0, 0, 0);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun 	/* Ensure pre-multiplied for blending */
23*4882a593Smuzhiyun 	if (!c_input_is_premult || c_need_color_pipeline)
24*4882a593Smuzhiyun--
25*4882a593Smuzhiyun2.20.1
26*4882a593Smuzhiyun
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