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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
// Based on http://www.geeks3d.com/20100909/shader-library-gaussian-blur-post-processing-filter-in-glsl/
import QtQuick 2.0
Item {
id: root
property bool divider: true
property real dividerValue: 0.5
property ListModel parameters: ListModel {
ListElement {
name: "Radius"
value: 0.5
}
}
property alias targetWidth: verticalShader.targetWidth
property alias targetHeight: verticalShader.targetHeight
property alias source: verticalShader.source
Effect {
id: verticalShader
anchors.fill: parent
dividerValue: parent.dividerValue
property real blurSize: 4.0 * parent.parameters.get(0).value / targetHeight
fragmentShaderFilename: "gaussianblur_v.fsh"
}
Effect {
id: horizontalShader
anchors.fill: parent
dividerValue: parent.dividerValue
property real blurSize: 4.0 * parent.parameters.get(0).value / parent.targetWidth
fragmentShaderFilename: "gaussianblur_h.fsh"
source: horizontalShaderSource
ShaderEffectSource {
id: horizontalShaderSource
sourceItem: verticalShader
smooth: true
hideSource: true
}
}
}
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