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Diffstat (limited to 'src/effects/BrightnessContrast.qml')
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diff --git a/src/effects/BrightnessContrast.qml b/src/effects/BrightnessContrast.qml deleted file mode 100644 index c2820f6..0000000 --- a/src/effects/BrightnessContrast.qml +++ /dev/null @@ -1,203 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2020 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the Qt Graphical Effects module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** 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, -** 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 2.12 -import QtGraphicalEffects.private 1.12 - -/*! - \qmltype BrightnessContrast - \inqmlmodule QtGraphicalEffects - \since QtGraphicalEffects 1.0 - \inherits QtQuick2::Item - \ingroup qtgraphicaleffects-color - \brief Adjusts brightness and contrast. - - This effect adjusts the source item colors. - Brightness adjustment changes the perceived luminance of the source item. - Contrast adjustment increases or decreases the color - and brightness variations. - - \table - \header - \li Source - \li Effect applied - \row - \li \image Original_bug.png - \li \image BrightnessContrast_bug.png - \endtable - - \section1 Example - - The following example shows how to apply the effect. - \snippet BrightnessContrast-example.qml example - -*/ -Item { - id: rootItem - - /*! - This property defines the source item that provides the source pixels - for the effect. - - \note It is not supported to let the effect include itself, for - instance by setting source to the effect's parent. - */ - property variant source - - /*! - This property defines how much the source brightness is increased or - decreased. - - The value ranges from -1.0 to 1.0. By default, the property is set to \c - 0.0 (no change). - - \table - \header - \li Output examples with different brightness values - \li - \li - \row - \li \image BrightnessContrast_brightness1.png - \li \image BrightnessContrast_brightness2.png - \li \image BrightnessContrast_brightness3.png - \row - \li \b { brightness: -0.25 } - \li \b { brightness: 0 } - \li \b { brightness: 0.5 } - \row - \li \l contrast: 0 - \li \l contrast: 0 - \li \l contrast: 0 - \endtable - - */ - property real brightness: 0.0 - - /*! - This property defines how much the source contrast is increased or - decreased. The decrease of the contrast is linear, but the increase is - applied with a non-linear curve to allow very high contrast adjustment at - the high end of the value range. - - \table - \header - \li Contrast adjustment curve - \row - \li \image BrightnessContrast_contrast_graph.png - \endtable - - The value ranges from -1.0 to 1.0. By default, the property is set to \c 0.0 (no change). - - \table - \header - \li Output examples with different contrast values - \li - \li - \row - \li \image BrightnessContrast_contrast1.png - \li \image BrightnessContrast_contrast2.png - \li \image BrightnessContrast_contrast3.png - \row - \li \b { contrast: -0.5 } - \li \b { contrast: 0 } - \li \b { contrast: 0.5 } - \row - \li \l brightness: 0 - \li \l brightness: 0 - \li \l brightness: 0 - \endtable - - */ - property real contrast: 0.0 - - /*! - This property allows the effect output pixels to be cached in order to - improve the rendering performance. - - Every time the source or effect properties are changed, the pixels in - the cache must be updated. Memory consumption is increased, because an - extra buffer of memory is required for storing the effect output. - - It is recommended to disable the cache when the source or the effect - properties are animated. - - By default, the property is set to \c false. - - */ - property bool cached: false - - SourceProxy { - id: sourceProxy - input: rootItem.source - interpolation: input && input.smooth ? SourceProxy.LinearInterpolation : SourceProxy.NearestInterpolation - } - - 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 brightness: rootItem.brightness - property real contrast: rootItem.contrast - - anchors.fill: parent - blending: !rootItem.cached - - fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/brightnesscontrast.frag.qsb" - } -} |