/usr/share/unity8/Components/BlurLayer.qml is in unity8-common 8.12+16.04.20160401-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | /*
* Copyright (C) 2015 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import QtQuick 2.4
import QtGraphicalEffects 1.0
Item {
id: root
property alias source: shaderEffectSource.sourceItem
property alias saturation: desaturateEffect.saturationValue
property alias blurRadius: fastBlur.radius
readonly property alias ready: shaderEffectSource.ready
ShaderEffect {
id: desaturateEffect
anchors.fill: root
property real saturationValue: 1
property variant source: ShaderEffectSource {
id: shaderEffectSource
hideSource: root.visible
live: !root.visible
property bool ready: false;
onLiveChanged: {
if (!live) {
ready = false;
scheduleUpdate();
}
}
onScheduledUpdateCompleted: ready = true;
}
fragmentShader: "
varying highp vec2 qt_TexCoord0;
uniform sampler2D source;
uniform lowp float saturationValue;
void main(void)
{
highp vec4 sourceColor = texture2D(source, qt_TexCoord0);
highp vec4 scaledColor = sourceColor * vec4(0.3, 0.59, 0.11, 1.0);
lowp float luminance = scaledColor.r + scaledColor.g + scaledColor.b ;
gl_FragColor = mix(vec4(luminance, luminance, luminance, sourceColor.a), sourceColor, saturationValue);
}"
}
FastBlur {
id: fastBlur
anchors.fill: parent
source: desaturateEffect
visible: radius > 0
radius: 0
}
}
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