Corner Radius become Vector4

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / graphics / shaders / color-visual-blur-edge-shader.vert

diff --git a/dali-toolkit/internal/graphics/shaders/color-visual-blur-edge-shader.vert b/dali-toolkit/internal/graphics/shaders/color-visual-blur-edge-shader.vert
index e20110b..5306aef 100644 (file)
--- a/dali-toolkit/internal/graphics/shaders/color-visual-blur-edge-shader.vert
+++ b/dali-toolkit/internal/graphics/shaders/color-visual-blur-edge-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;
@@ -14,7 +15,7 @@ uniform mediump vec4 offsetSizeMode;
 uniform mediump vec2 origin;
 uniform mediump vec2 anchorPoint;
 uniform mediump float blurRadius;
-uniform mediump float cornerRadius;
+uniform mediump vec4 cornerRadius;
 uniform mediump float cornerRadiusPolicy;
 
 vec4 ComputeVertexPosition()
@@ -24,7 +25,11 @@ 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 - vec2( vCornerRadius );
+  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 - blurRadius;
+
   vPosition = aPosition * (visualSize + 2.0 * blurRadius);
   return vec4( vPosition + anchorPoint*visualSize + (visualOffset + origin)*uSize.xy, 0.0, 1.0 );
 }