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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd and/or its subsidiary(-ies).
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
**   * Redistributions of source code must retain the above copyright
**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of The Qt Company Ltd nor the names of its
**     contributors may be used to endorse or promote products derived
**     from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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**
****************************************************************************/

uniform float dividerValue;
uniform float blurSize;

uniform sampler2D source;
uniform lowp float qt_Opacity;
varying vec2 qt_TexCoord0;

void main()
{
    vec2 uv = qt_TexCoord0.xy;
    vec4 c = vec4(0.0);
    if (uv.x < dividerValue) {
        c += texture2D(source, uv - vec2(4.0*blurSize, 0.0)) * 0.05;
        c += texture2D(source, uv - vec2(3.0*blurSize, 0.0)) * 0.09;
        c += texture2D(source, uv - vec2(2.0*blurSize, 0.0)) * 0.12;
        c += texture2D(source, uv - vec2(1.0*blurSize, 0.0)) * 0.15;
        c += texture2D(source, uv) * 0.18;
        c += texture2D(source, uv + vec2(1.0*blurSize, 0.0)) * 0.15;
        c += texture2D(source, uv + vec2(2.0*blurSize, 0.0)) * 0.12;
        c += texture2D(source, uv + vec2(3.0*blurSize, 0.0)) * 0.09;
        c += texture2D(source, uv + vec2(4.0*blurSize, 0.0)) * 0.05;
    } else {
        c = texture2D(source, qt_TexCoord0);
    }
    gl_FragColor = qt_Opacity * c;
}