Corner Radius become Vector4

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / graphics / shaders / gradient-visual-linear-rounded-corner-shader.frag

diff --git a/dali-toolkit/internal/graphics/shaders/gradient-visual-linear-rounded-corner-shader.frag b/dali-toolkit/internal/graphics/shaders/gradient-visual-linear-rounded-corner-shader.frag
index 548367c..1b29ae0 100644 (file)
--- a/dali-toolkit/internal/graphics/shaders/gradient-visual-linear-rounded-corner-shader.frag
+++ b/dali-toolkit/internal/graphics/shaders/gradient-visual-linear-rounded-corner-shader.frag
@@ -4,23 +4,35 @@ uniform lowp vec3 mixColor;
 varying mediump vec2 vTexCoord;
 varying mediump vec2 vPosition;
 varying mediump vec2 vRectSize;
-varying mediump float vCornerRadius;
+varying mediump vec2 vOptRectSize;
+varying mediump vec4 vCornerRadius;
 
 void main()
 {
   gl_FragColor = texture2D( sTexture, vec2( vTexCoord.y, 0.5 ) ) * vec4(mixColor, 1.0) * uColor;
-  mediump vec2 diff = abs( vPosition ) - vRectSize;
-  mediump float dist = length( max( diff, vec2( 0.0 ) ) ) - vCornerRadius;
-  if( dist > 1.0 )
+  if(abs(vPosition.x) < vOptRectSize.x && abs(vPosition.y) < vOptRectSize.y)
   {
-    gl_FragColor = vec4( 0.0 );
+    return;
   }
-  else if( dist > -1.0 )
+  mediump float radius =
+  mix(
+    mix(vCornerRadius.x, vCornerRadius.y, sign(vPosition.x) * 0.5 + 0.5),
+    mix(vCornerRadius.w, vCornerRadius.z, sign(vPosition.x) * 0.5 + 0.5),
+    sign(vPosition.y) * 0.5 + 0.5
+  );
+
+  mediump vec2 diff = abs(vPosition) - vRectSize + radius;
+  mediump float dist = length(max(diff, vec2(0.0))) - radius;
+  if(dist > 1.0)
+  {
+    gl_FragColor = vec4(0.0);
+  }
+  else if(dist > -1.0)
   {
-    if( min( diff.x, diff.y ) < 0.0 )
+    if(min(diff.x, diff.y) < 0.0)
     {
-      dist += min( diff.x, diff.y ) / vCornerRadius;
+      dist += min(diff.x, diff.y) / max(radius, 1.0);
     }
-    gl_FragColor *= 1.0 - smoothstep( -1.0, 1.0, dist );
+    gl_FragColor *= 1.0 - smoothstep(-1.0, 1.0, dist);
   }
 }