From: Jinho, Lee <jeano.lee@samsung.com>
Date: Thu, 7 Dec 2017 09:02:05 +0000 (+0900)
Subject: [4.0] Fixed text scroller pre multiplied alpha issue.
X-Git-Tag: accepted/tizen/4.0/unified/20171207.124753^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F23%2F163123%2F1;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

[4.0] Fixed text scroller pre multiplied alpha issue.

Change-Id: Id35f46c30af5b5f14536a879af93f299e467db26
---

diff --git a/dali-toolkit/internal/text/text-scroller.cpp b/dali-toolkit/internal/text/text-scroller.cpp
index 6f57700..f8089a2 100644
--- a/dali-toolkit/internal/text/text-scroller.cpp
+++ b/dali-toolkit/internal/text/text-scroller.cpp
@@ -97,6 +97,7 @@ const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
       discard;\n
     \n
     mediump vec4 textTexture = texture2D( sTexture, vTexCoord );\n
+    textTexture.rgb *= mix( 1.0, textTexture.a, preMultipliedAlpha );\n
     \n
     gl_FragColor = textTexture * uColor * visualMixColor();
   }\n