From: Jinho, Lee <jeano.lee@samsung.com>
Date: Tue, 26 Dec 2017 06:59:40 +0000 (+0900)
Subject: [4.0] Fixed Text texture quality issue when auto scrolling
X-Git-Tag: submit/tizen_4.0/20171228.093240~5^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F80%2F164980%2F2;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

[4.0] Fixed Text texture quality issue when auto scrolling

 - When using emoji, an unknown line appears at the top of the texture.
 - Add exception handling code to shader code

Change-Id: Ie8368fdff2208ba3c5107b99b88bd9007cd2cf58
---

diff --git a/dali-toolkit/internal/text/text-scroller.cpp b/dali-toolkit/internal/text/text-scroller.cpp
index f8089a2..c60e2db 100644
--- a/dali-toolkit/internal/text/text-scroller.cpp
+++ b/dali-toolkit/internal/text/text-scroller.cpp
@@ -93,7 +93,7 @@ const char* FRAGMENT_SHADER = DALI_COMPOSE_SHADER(
   \n
   void main()\n
   {\n
-    if ( vTexCoord.y > 1.0 )\n
+    if ( vTexCoord.y > 1.0 || vTexCoord.y < 0.0 )\n
       discard;\n
     \n
     mediump vec4 textTexture = texture2D( sTexture, vTexCoord );\n