From: Eunki Hong <eunkiki.hong@samsung.com>
Date: Fri, 3 Jun 2022 11:37:42 +0000 (+0000)
Subject: Merge "Fix visual defect during text scroll" into devel/master
X-Git-Tag: dali_2.1.26~11
X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=commitdiff_plain;h=8e8d63d501dc8c26f84932dfad3a9e3a9083cfb1;hp=351aecc36532fc5a38e14e670b67ac0cb657684c

Merge "Fix visual defect during text scroll" into devel/master
---

diff --git a/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert b/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
index 6c2cd05..6ea160a 100644
--- a/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
+++ b/dali-toolkit/internal/graphics/shaders/text-scroller-shader.vert
@@ -1,9 +1,9 @@
 attribute mediump vec2 aPosition;
 varying highp vec2 vTexCoord;
 uniform highp vec3 uSize;
-uniform mediump float uDelta;
+uniform highp float uDelta;
 uniform mediump vec2 uTextureSize;
-uniform mediump float uGap;
+uniform highp float uGap;
 uniform mediump float uHorizontalAlign;
 uniform mediump float uVerticalAlign;
 
@@ -18,13 +18,13 @@ uniform mediump vec2 anchorPoint;
 
 void main()
 {
-  mediump vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy );
-  mediump vec2 visualSize = mix( uSize.xy * size, size, offsetSizeMode.zw );
+  highp vec2 visualOffset = mix( offset, offset/uSize.xy, offsetSizeMode.xy );
+  highp vec2 visualSize = mix( uSize.xy * size, size, offsetSizeMode.zw );
 
-  vTexCoord.x = ( uDelta + uHorizontalAlign * ( uTextureSize.x - visualSize.x - uGap ) + floor( aPosition.x * visualSize.x ) + 0.5 - uGap * 0.5 ) / uTextureSize.x + 0.5;
-  vTexCoord.y = ( uVerticalAlign * ( uTextureSize.y - visualSize.y ) + floor( aPosition.y * visualSize.y ) + 0.5 ) / ( uTextureSize.y ) + 0.5;
+  vTexCoord.x = ( uDelta + uHorizontalAlign * ( uTextureSize.x - visualSize.x - uGap ) + aPosition.x * visualSize.x - uGap * 0.5 ) / uTextureSize.x + 0.5;
+  vTexCoord.y = ( uVerticalAlign * ( uTextureSize.y - visualSize.y ) + aPosition.y * visualSize.y ) / ( uTextureSize.y ) + 0.5;
 
-  mediump vec4 vertexPosition = vec4( floor( ( aPosition + anchorPoint ) * visualSize + ( visualOffset + origin ) * uSize.xy ), 0.0, 1.0 );
+  highp vec4 vertexPosition = vec4( ( aPosition + anchorPoint ) * visualSize + ( visualOffset + origin ) * uSize.xy, 0.0, 1.0 );
 
   gl_Position = uMvpMatrix * vertexPosition;
 }
\ No newline at end of file