Remove qtgraphicaleffects sources and add note about its state in Qt 6HEADdev

Add a README.md mentioning the documentation on where the ported
effects can be found, as well as how to check out the Qt5 branch.

Pick-to: 6.2
Fixes: QTBUG-95757
Change-Id: Ib47c7e73f8622c8e287df0f74c6f16a5113b357e
Reviewed-by: Tor Arne Vestbø <[email protected]>
Reviewed-by: Volker Hilsheimer <[email protected]>

1 files changed, 0 insertions, 233 deletions

diff --git a/src/effects/HueSaturation.qml b/src/effects/HueSaturation.qml
deleted file mode 100644
index 4b6769e..0000000
--- a/src/effects/HueSaturation.qml
+++ /dev/null
@@ -1,233 +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 HueSaturation
-    \inqmlmodule QtGraphicalEffects
-    \since QtGraphicalEffects 1.0
-    \inherits QtQuick2::Item
-    \ingroup qtgraphicaleffects-color
-    \brief Alters the source item colors in the HSL color space.
-
-    HueSaturation is similar to the \l{QtGraphicalEffects::Colorize}{Colorize}
-    effect, but the hue and saturation property values are handled differently.
-    The HueSaturation effect always shifts the hue, saturation, and lightness
-    from the original, instead of setting them.
-
-    \table
-    \header
-        \li Source
-        \li Effect applied
-    \row
-        \li \image Original_bug.png
-        \li \image HueSaturation_bug.png
-    \endtable
-
-    \section1 Example
-
-    The following example shows how to apply the effect.
-    \snippet HueSaturation-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: 0
-
-    /*!
-        This property defines the hue value which is added to the source hue
-        value.
-
-        The value ranges from -1.0 (decrease) to 1.0 (increase). By default, the
-        property is set to \c 0.0 (no change).
-
-        \table
-        \header
-        \li Output examples with different hue values
-        \li
-        \li
-        \row
-            \li \image HueSaturation_hue1.png
-            \li \image HueSaturation_hue2.png
-            \li \image HueSaturation_hue3.png
-        \row
-            \li \b { hue: -0.3 }
-            \li \b { hue: 0.0 }
-            \li \b { hue: 0.3 }
-        \row
-            \li \l saturation: 0
-            \li \l saturation: 0
-            \li \l saturation: 0
-        \row
-            \li \l lightness: 0
-            \li \l lightness: 0
-            \li \l lightness: 0
-        \endtable
-
-    */
-    property real hue: 0.0
-
-    /*!
-        This property defines the saturation value value which is added to the
-        source saturation value.
-
-        The value ranges from -1.0 (decrease) to 1.0 (increase). By default, the
-        property is set to \c 0.0 (no change).
-
-        \table
-        \header
-        \li Output examples with different saturation values
-        \li
-        \li
-        \row
-            \li \image HueSaturation_saturation1.png
-            \li \image HueSaturation_saturation2.png
-            \li \image HueSaturation_saturation3.png
-        \row
-            \li \b { saturation: -0.8 }
-            \li \b { saturation: 0.0 }
-            \li \b { saturation: 1.0 }
-        \row
-            \li \l hue: 0
-            \li \l hue: 0
-            \li \l hue: 0
-        \row
-            \li \l lightness: 0
-            \li \l lightness: 0
-            \li \l lightness: 0
-        \endtable
-
-    */
-    property real saturation: 0.0
-
-    /*!
-        This property defines the lightness value which is added to the source
-        saturation value.
-
-        The value ranges from -1.0 (decrease) to 1.0 (increase). By default, the
-        property is set to \c 0.0 (no change).
-
-        \table
-        \header
-        \li Output examples with different lightness values
-        \li
-        \li
-        \row
-            \li \image HueSaturation_lightness1.png
-            \li \image HueSaturation_lightness2.png
-            \li \image HueSaturation_lightness3.png
-        \row
-            \li \b { lightness: -0.5 }
-            \li \b { lightness: 0.0 }
-            \li \b { lightness: 0.5 }
-        \row
-            \li \l hue: 0
-            \li \l hue: 0
-            \li \l hue: 0
-        \row
-            \li \l saturation: 0
-            \li \l saturation: 0
-            \li \l saturation: 0
-        \endtable
-
-    */
-    property real lightness: 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 variant hsl: Qt.vector3d(rootItem.hue, rootItem.saturation, rootItem.lightness)
-
-        anchors.fill: parent
-
-        fragmentShader: "qrc:/qt-project.org/imports/QtGraphicalEffects/shaders_ng/huesaturation.frag.qsb"
-    }
-}