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Diffstat (limited to 'src/effects/GammaAdjust.qml')
-rw-r--r-- | src/effects/GammaAdjust.qml | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/effects/GammaAdjust.qml b/src/effects/GammaAdjust.qml new file mode 100644 index 0000000..62ba66a --- /dev/null +++ b/src/effects/GammaAdjust.qml @@ -0,0 +1,81 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Graphical Effects module. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 Nokia Corporation and its Subsidiary(-ies) 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, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +import QtQuick 2.0 + +Item { + id: rootItem + property variant source + property real gamma: 1.0 + property bool cached: false + + SourceProxy { + id: sourceProxy + input: rootItem.source + } + + ShaderEffectSource { + id: cacheItem + anchors.fill: parent + visible: rootItem.cached + smooth: true + sourceItem: shaderItem + live: true + hideSource: visible + } + + ShaderEffect { + id: shaderItem + property variant source: sourceProxy.output + property real gamma: rootItem.gamma + + anchors.fill: parent + + fragmentShader: " + varying highp vec2 qt_TexCoord0; + uniform highp float qt_Opacity; + uniform sampler2D source; + uniform highp float gamma; + void main(void) { + gl_FragColor = pow(texture2D(source, qt_TexCoord0.st), vec4(gamma)); + } + " + } +} |