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Diffstat (limited to 'src/effects/LevelAdjust.qml')
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diff --git a/src/effects/LevelAdjust.qml b/src/effects/LevelAdjust.qml deleted file mode 100644 index 5ea2e17..0000000 --- a/src/effects/LevelAdjust.qml +++ /dev/null @@ -1,449 +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 LevelAdjust - \inqmlmodule QtGraphicalEffects - \since QtGraphicalEffects 1.0 - \inherits QtQuick2::Item - \ingroup qtgraphicaleffects-color - \brief Adjusts color levels in the RGBA color space. - - This effect adjusts the source item colors separately for each color - channel. Source item contrast can be adjusted and color balance altered. - - \table - \header - \li Source - \li Effect applied - \row - \li \image Original_butterfly.png - \li \image LevelAdjust_butterfly.png - \endtable - - \section1 Example - - The following example shows how to apply the effect. - \snippet LevelAdjust-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 the change factor for how the value of each pixel - color channel is altered according to the equation: - - \code - result.rgb = pow(original.rgb, 1.0 / gamma.rgb); - \endcode - - Setting the gamma values under QtVector3d(1.0, 1.0, 1.0) makes the image - darker, the values above QtVector3d(1.0, 1.0, 1.0) lighten it. - - The value ranges from QtVector3d(0.0, 0.0, 0.0) (darkest) to inf - (lightest). By default, the property is set to \c QtVector3d(1.0, 1.0, - 1.0) (no change). - - \table - \header - \li Output examples with different gamma values - \li - \li - \row - \li \image LevelAdjust_gamma1.png - \li \image LevelAdjust_gamma2.png - \li \image LevelAdjust_gamma3.png - \row - \li \b { gamma: Qt.vector3d(1.0, 1.0, 1.0) } - \li \b { gamma: Qt.vector3d(1.0, 0.4, 2.0) } - \li \b { gamma: Qt.vector3d(1.0, 0.1, 4.0) } - \row - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \row - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \row - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \row - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \endtable - - \table - \header - \li Pixel color channel luminance curves of the above images. - \li - \li - \row - \li \image LevelAdjust_default_curve.png - \li \image LevelAdjust_gamma2_curve.png - \li \image LevelAdjust_gamma3_curve.png - \row - \li X-axis: pixel original luminance - \li - \li - \row - \li Y-axis: color channel luminance with effect applied - \li - \li - \endtable - */ - property variant gamma: Qt.vector3d(1.0, 1.0, 1.0) - - /*! - This property defines the minimum input level for each color channel. It - sets the black-point, all pixels having lower value than this property - are rendered as black (per color channel). Increasing the value darkens - the dark areas. - - The value ranges from "#00000000" to "#ffffffff". By default, the - property is set to \c "#00000000" (no change). - - \table - \header - \li Output examples with different minimumInput values - \li - \li - \row - \li \image LevelAdjust_minimumInput1.png - \li \image LevelAdjust_minimumInput2.png - \li \image LevelAdjust_minimumInput3.png - \row - \li \b { minimumInput: #00000000 } - \li \b { minimumInput: #00000040 } - \li \b { minimumInput: #00000070 } - \row - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \row - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \row - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \row - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \endtable - - \table - \header - \li Pixel color channel luminance curves of the above images. - \li - \li - \row - \li \image LevelAdjust_default_curve.png - \li \image LevelAdjust_minimumInput2_curve.png - \li \image LevelAdjust_minimumInput3_curve.png - \row - \li X-axis: pixel original luminance - \li - \li - \row - \li Y-axis: color channel luminance with effect applied - \li - \li - \endtable - - */ - property color minimumInput: Qt.rgba(0.0, 0.0, 0.0, 0.0) - - /*! - This property defines the maximum input level for each color channel. - It sets the white-point, all pixels having higher value than this - property are rendered as white (per color channel). - Decreasing the value lightens the light areas. - - The value ranges from "#ffffffff" to "#00000000". By default, the - property is set to \c "#ffffffff" (no change). - - \table - \header - \li Output examples with different maximumInput values - \li - \li - \row - \li \image LevelAdjust_maximumInput1.png - \li \image LevelAdjust_maximumInput2.png - \li \image LevelAdjust_maximumInput3.png - \row - \li \b { maximumInput: #FFFFFFFF } - \li \b { maximumInput: #FFFFFF80 } - \li \b { maximumInput: #FFFFFF30 } - \row - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \row - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \row - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \row - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \endtable - - \table - \header - \li Pixel color channel luminance curves of the above images. - \li - \li - \row - \li \image LevelAdjust_default_curve.png - \li \image LevelAdjust_maximumInput2_curve.png - \li \image LevelAdjust_maximumInput3_curve.png - \row - \li X-axis: pixel original luminance - \li - \li - \row - \li Y-axis: color channel luminance with effect applied - \li - \li - \endtable - - */ - property color maximumInput: Qt.rgba(1.0, 1.0, 1.0, 1.0) - - /*! - This property defines the minimum output level for each color channel. - Increasing the value lightens the dark areas, reducing the contrast. - - The value ranges from "#00000000" to "#ffffffff". By default, the - property is set to \c "#00000000" (no change). - - \table - \header - \li Output examples with different minimumOutput values - \li - \li - \row - \li \image LevelAdjust_minimumOutput1.png - \li \image LevelAdjust_minimumOutput2.png - \li \image LevelAdjust_minimumOutput3.png - \row - \li \b { minimumOutput: #00000000 } - \li \b { minimumOutput: #00000070 } - \li \b { minimumOutput: #000000A0 } - \row - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \row - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \row - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \li \l maximumOutput: #ffffff - \row - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \endtable - - \table - \header - \li Pixel color channel luminance curves of the above images. - \li - \li - \row - \li \image LevelAdjust_default_curve.png - \li \image LevelAdjust_minimumOutput2_curve.png - \li \image LevelAdjust_minimumOutput3_curve.png - \row - \li X-axis: pixel original luminance - \li - \li - \row - \li Y-axis: color channel luminance with effect applied - \li - \li - \endtable - - */ - property color minimumOutput: Qt.rgba(0.0, 0.0, 0.0, 0.0) - - /*! - This property defines the maximum output level for each color channel. - Decreasing the value darkens the light areas, reducing the contrast. - - The value ranges from "#ffffffff" to "#00000000". By default, the - property is set to \c "#ffffffff" (no change). - - \table - \header - \li Output examples with different maximumOutput values - \li - \li - \row - \li \image LevelAdjust_maximumOutput1.png - \li \image LevelAdjust_maximumOutput2.png - \li \image LevelAdjust_maximumOutput3.png - \row - \li \b { maximumOutput: #FFFFFFFF } - \li \b { maximumOutput: #FFFFFF80 } - \li \b { maximumOutput: #FFFFFF30 } - \row - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \li \l minimumInput: #000000 - \row - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \li \l maximumInput: #ffffff - \row - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \li \l minimumOutput: #000000 - \row - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \li \l gamma: Qt.vector3d(1.0, 1.0, 1.0) - \endtable - - \table - \header - \li Pixel color channel luminance curves of the above images. - \li - \li - \row - \li \image LevelAdjust_default_curve.png - \li \image LevelAdjust_maximumOutput2_curve.png - \li \image LevelAdjust_maximumOutput3_curve.png - \row - \li X-axis: pixel original luminance - \li - \li - \row - \li Y-axis: color channel luminance with effect applied - \li - \li - \endtable - */ - property color maximumOutput: Qt.rgba(1.0, 1.0, 1.0, 1.0) - - /*! - 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 variant minimumInputRGB: Qt.vector3d(rootItem.minimumInput.r, rootItem.minimumInput.g, rootItem.minimumInput.b) - property variant maximumInputRGB: Qt.vector3d(rootItem.maximumInput.r, rootItem.maximumInput.g, rootItem.maximumInput.b) - property real minimumInputAlpha: rootItem.minimumInput.a - property real maximumInputAlpha: rootItem.maximumInput.a - property variant minimumOutputRGB: Qt.vector3d(rootItem.minimumOutput.r, rootItem.minimumOutput.g, rootItem.minimumOutput.b) - property variant maximumOutputRGB: Qt.vector3d(rootItem.maximumOutput.r, rootItem.maximumOutput.g, rootItem.maximumOutput.b) - property real minimumOutputAlpha: rootItem.minimumOutput.a - property real maximumOutputAlpha: rootItem.maximumOutput.a - property variant gamma: Qt.vector3d(1.0 / Math.max(rootItem.gamma.x, 0.0001), 1.0 / Math.max(rootItem.gamma.y, 0.0001), 1.0 / Math.max(rootItem.gamma.z, 0.0001)) - anchors.fill: parent - - fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/leveladjust.frag.qsb" - } -} |