N9RoundedShapeEffect

import QtQuick 1.1
import Qt.labs.shaders 1.0

ShaderEffectItem {
    id: root
    property alias sourceItem: source.sourceItem
    anchors.fill: root.sourceItem ? root.sourceItem : undefined
    property variant source: ShaderEffectSource {
        id: source
        hideSource: true
        smooth: true
    }

    property variant mask: ShaderEffectSource {
        sourceItem: Image { source: './mask.png' }

        hideSource: true
        smooth: true
    }

    vertexShader: '
         uniform highp mat4 qt_ModelViewProjectionMatrix;
         attribute highp vec4 qt_Vertex;
         attribute highp vec2 qt_MultiTexCoord0;
         varying highp vec2 qt_TexCoord0;
         void main(void)
         {
             qt_TexCoord0 = qt_MultiTexCoord0;
             gl_Position = qt_ModelViewProjectionMatrix * qt_Vertex;
         }'
    fragmentShader: '
         varying highp vec2 qt_TexCoord0;
         uniform sampler2D source;
         uniform sampler2D mask;
         void main(void)
         {
             lowp vec4 color = texture2D(source, qt_TexCoord0.st);
             color.a = texture2D(mask, qt_TexCoord0.st).a;
             if (color.a < 0.5)
                 gl_FragColor = vec4(0.0);
             else
                 gl_FragColor = color;
         }'
}