X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Fgraphics%2Fshaders%2Fcolor-visual-rounded-corner-shader.vert;h=0a6a257d1c6c492df114ad7785b0f691b7bd6e66;hb=e015f32740b0efd126f0e314ee872474e1fe1e91;hp=33216e54ebcc687855eecd3bc3ac2aceb8019b93;hpb=d6c509f6c98e046bb4de0564f2088fb61b3f00da;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

diff --git a/dali-toolkit/internal/graphics/shaders/color-visual-rounded-corner-shader.vert b/dali-toolkit/internal/graphics/shaders/color-visual-rounded-corner-shader.vert
index 33216e5..0a6a257 100644
--- a/dali-toolkit/internal/graphics/shaders/color-visual-rounded-corner-shader.vert
+++ b/dali-toolkit/internal/graphics/shaders/color-visual-rounded-corner-shader.vert
@@ -1,7 +1,8 @@
 INPUT mediump vec2 aPosition;
 OUTPUT mediump vec2 vPosition;
 OUTPUT mediump vec2 vRectSize;
-OUTPUT mediump float vCornerRadius;
+OUTPUT mediump vec2 vOptRectSize;
+OUTPUT mediump vec4 vCornerRadius;
 
 uniform highp mat4 uMvpMatrix;
 uniform highp vec3 uSize;
@@ -13,7 +14,7 @@ uniform mediump vec2 extraSize;
 uniform mediump vec4 offsetSizeMode;
 uniform mediump vec2 origin;
 uniform mediump vec2 anchorPoint;
-uniform mediump float cornerRadius;
+uniform mediump vec4 cornerRadius;
 uniform mediump float cornerRadiusPolicy;
 
 vec4 ComputeVertexPosition()
@@ -23,8 +24,10 @@ vec4 ComputeVertexPosition()
   mediump float minSize = min( visualSize.x, visualSize.y );
   vCornerRadius = mix( cornerRadius * minSize, cornerRadius, cornerRadiusPolicy);
   vCornerRadius = min( vCornerRadius, minSize * 0.5 );
-  vRectSize = visualSize / 2.0 - vCornerRadius;
-  vCornerRadius = max( vCornerRadius, 1.0 );
+  vRectSize = visualSize / 2.0;
+  // optimize fragment shader
+  mediump float maxRadius = max(max(vCornerRadius.x, vCornerRadius.y), max(vCornerRadius.z, vCornerRadius.w));
+  vOptRectSize = vRectSize - 0.2929 * maxRadius - 1.0;
   vPosition = aPosition* visualSize;
   return vec4( vPosition + anchorPoint*visualSize + (visualOffset + origin)*uSize.xy, 0.0, 1.0 );
 }