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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
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| ** GNU General Public License Usage |
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| ** General Public License version 3 as published by the Free Software |
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| |
| import QtQuick 2.0 |
| import QtQuick.Particles 2.0 |
| |
| Rectangle { |
| color: "black" |
| width: 320 |
| height: 320 |
| |
| ShaderEffect { |
| id: sei |
| property variant source |
| } |
| |
| ShaderEffectSource { |
| id: doomed |
| hideSource: true |
| sourceItem: Image { |
| source: "star.png" |
| } |
| } |
| |
| function setDeletedShaderEffectSource() { |
| sei.source = doomed; |
| doomed.destroy(); |
| // now set a fragment shader to trigger source texture detection. |
| sei.fragmentShader = "varying highp vec2 qt_TexCoord0;\ |
| uniform sampler2D source;\ |
| uniform lowp float qt_Opacity;\ |
| void main() {\ |
| gl_FragColor = texture2D(source, qt_TexCoord0) * qt_Opacity;\ |
| }"; |
| } |
| } |