7 files changed, 0 insertions, 426 deletions
diff --git a/examples/declarative/openglunderqml/doc/openglunderqml.rst b/examples/declarative/openglunderqml/doc/openglunderqml.rst
deleted file mode 100644
index 6a89a99d9..000000000
--- a/examples/declarative/openglunderqml/doc/openglunderqml.rst
+++ /dev/null
@@ -1,21 +0,0 @@
-OpenGL under QML Squircle
-=========================
-
-The OpenGL under QML example shows how an application can make use of the
-QQuickWindow::beforeRendering() signal to draw custom OpenGL content under a Qt
-Quick scene. This signal is emitted at the start of every frame, before the
-scene graph starts its rendering, thus any OpenGL draw calls that are made as
-a response to this signal, will stack under the Qt Quick items.
-
-As an alternative, applications that wish to render OpenGL content on top of
-the Qt Quick scene, can do so by connecting to the
-QQuickWindow::afterRendering() signal.
-
-In this example, we will also see how it is possible to have values that are
-exposed to QML which affect the OpenGL rendering. We animate the threshold
-value using a NumberAnimation in the QML file and this value is used by the
-OpenGL shader program that draws the squircles.
-
-.. image:: squircle.png
-   :width: 400
-   :alt: Squircle Screenshot
diff --git a/examples/declarative/openglunderqml/doc/squircle.png b/examples/declarative/openglunderqml/doc/squircle.png
deleted file mode 100644
index c099a6b7e..000000000
--- a/examples/declarative/openglunderqml/doc/squircle.png
+++ /dev/null
diff --git a/examples/declarative/openglunderqml/main.py b/examples/declarative/openglunderqml/main.py
deleted file mode 100644
index 2da00fd6b..000000000
--- a/examples/declarative/openglunderqml/main.py
+++ /dev/null
@@ -1,64 +0,0 @@
-#############################################################################
-##
-## Copyright (C) 2021 The Qt Company Ltd.
-## Contact: http://www.qt.io/licensing/
-##
-## This file is part of the Qt for Python examples of the Qt Toolkit.
-##
-## $QT_BEGIN_LICENSE:BSD$
-## 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 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 sys
-from pathlib import Path
-
-from PySide6.QtCore import QUrl
-from PySide6.QtGui import QGuiApplication
-from PySide6.QtQuick import QQuickView, QQuickWindow, QSGRendererInterface
-
-from squircle import Squircle
-
-if __name__ == "__main__":
-    app = QGuiApplication(sys.argv)
-
-    QQuickWindow.setGraphicsApi(QSGRendererInterface.OpenGL)
-
-    view = QQuickView()
-    view.setResizeMode(QQuickView.SizeRootObjectToView)
-    qml_file = Path(__file__).parent / "main.qml"
-    view.setSource(QUrl.fromLocalFile(qml_file))
-
-    if view.status() == QQuickView.Error:
-        sys.exit(-1)
-    view.show()
-
-    sys.exit(app.exec())
diff --git a/examples/declarative/openglunderqml/main.qml b/examples/declarative/openglunderqml/main.qml
deleted file mode 100644
index 7edcf523b..000000000
--- a/examples/declarative/openglunderqml/main.qml
+++ /dev/null
@@ -1,86 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2021 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications 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
-import OpenGLUnderQML
-
-Item {
-
-    width: 320
-    height: 480
-
-    Squircle {
-        SequentialAnimation on t {
-            NumberAnimation { to: 1; duration: 2500; easing.type: Easing.InQuad }
-            NumberAnimation { to: 0; duration: 2500; easing.type: Easing.OutQuad }
-            loops: Animation.Infinite
-            running: true
-        }
-    }
-    Rectangle {
-        color: Qt.rgba(1, 1, 1, 0.7)
-        radius: 10
-        border.width: 1
-        border.color: "white"
-        anchors.fill: label
-        anchors.margins: -10
-    }
-
-    Text {
-        id: label
-        color: "black"
-        wrapMode: Text.WordWrap
-        text: "The background here is a squircle rendered with raw OpenGL using the 'beforeRender()' signal in QQuickWindow. This text label and its border is rendered using QML"
-        anchors.right: parent.right
-        anchors.left: parent.left
-        anchors.bottom: parent.bottom
-        anchors.margins: 20
-    }
-}
diff --git a/examples/declarative/openglunderqml/openglunderqml.pyproject b/examples/declarative/openglunderqml/openglunderqml.pyproject
deleted file mode 100644
index e7cfbc570..000000000
--- a/examples/declarative/openglunderqml/openglunderqml.pyproject
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-    "files": [ "main.py", "main.qml", "squircle.py", "squirclerenderer.py"]
-}
diff --git a/examples/declarative/openglunderqml/squircle.py b/examples/declarative/openglunderqml/squircle.py
deleted file mode 100644
index 4ae21661e..000000000
--- a/examples/declarative/openglunderqml/squircle.py
+++ /dev/null
@@ -1,116 +0,0 @@
-#############################################################################
-##
-## Copyright (C) 2021 The Qt Company Ltd.
-## Contact: http://www.qt.io/licensing/
-##
-## This file is part of the Qt for Python examples of the Qt Toolkit.
-##
-## $QT_BEGIN_LICENSE:BSD$
-## 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 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."
-##
-## $QT_END_LICENSE$
-##
-#############################################################################
-
-from PySide6.QtCore import Property, QRunnable, Qt, Signal, Slot
-from PySide6.QtQml import QmlElement
-from PySide6.QtQuick import QQuickItem, QQuickWindow
-
-from squirclerenderer import SquircleRenderer
-
-# To be used on the @QmlElement decorator
-# (QML_IMPORT_MINOR_VERSION is optional)
-QML_IMPORT_NAME = "OpenGLUnderQML"
-QML_IMPORT_MAJOR_VERSION = 1
-
-
-class CleanupJob(QRunnable):
-    def __init__(self, renderer):
-        super().__init__()
-        self._renderer = renderer
-
-    def run(self):
-        del self._renderer
-
-
-@QmlElement
-class Squircle(QQuickItem):
-
-    tChanged = Signal()
-
-    def __init__(self, parent=None):
-        super().__init__(parent)
-        self._t = 0.0
-        self._renderer = None
-        self.windowChanged.connect(self.handleWindowChanged)
-
-    def t(self):
-        return self._t
-
-    def setT(self, value):
-        if self._t == value:
-            return
-        self._t = value
-        self.tChanged.emit()
-        if self.window():
-            self.window().update()
-
-    @Slot(QQuickWindow)
-    def handleWindowChanged(self, win):
-        if win:
-            win.beforeSynchronizing.connect(self.sync, type=Qt.DirectConnection)
-            win.sceneGraphInvalidated.connect(self.cleanup, type=Qt.DirectConnection)
-            win.setColor(Qt.black)
-            self.sync()
-
-    @Slot()
-    def cleanup(self):
-        del self._renderer
-        self._renderer = None
-
-    @Slot()
-    def sync(self):
-        window = self.window()
-        if not self._renderer:
-            self._renderer = SquircleRenderer()
-            window.beforeRendering.connect(self._renderer.init, Qt.DirectConnection)
-            window.beforeRenderPassRecording.connect(
-                self._renderer.paint, Qt.DirectConnection
-            )
-        self._renderer.setViewportSize(window.size() * window.devicePixelRatio())
-        self._renderer.setT(self._t)
-        self._renderer.setWindow(window)
-
-    def releaseResources(self):
-        self.window().scheduleRenderJob(
-            CleanupJob(self._renderer), QQuickWindow.BeforeSynchronizingStage
-        )
-        self._renderer = None
-
-    t = Property(float, t, setT, notify=tChanged)
diff --git a/examples/declarative/openglunderqml/squirclerenderer.py b/examples/declarative/openglunderqml/squirclerenderer.py
deleted file mode 100644
index 9f857f55f..000000000
--- a/examples/declarative/openglunderqml/squirclerenderer.py
+++ /dev/null
@@ -1,136 +0,0 @@
-#############################################################################
-##
-## Copyright (C) 2021 The Qt Company Ltd.
-## Contact: http://www.qt.io/licensing/
-##
-## This file is part of the Qt for Python examples of the Qt Toolkit.
-##
-## $QT_BEGIN_LICENSE:BSD$
-## 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 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."
-##
-## $QT_END_LICENSE$
-##
-#############################################################################
-
-from textwrap import dedent
-
-import numpy as np
-from OpenGL.GL import (GL_ARRAY_BUFFER, GL_BLEND, GL_DEPTH_TEST, GL_FLOAT,
-                       GL_ONE, GL_SRC_ALPHA, GL_TRIANGLE_STRIP)
-from PySide6.QtCore import QSize, Slot
-from PySide6.QtGui import QOpenGLFunctions
-from PySide6.QtOpenGL import (QOpenGLShader, QOpenGLShaderProgram,
-                              QOpenGLVersionProfile)
-from PySide6.QtQuick import QQuickWindow, QSGRendererInterface
-
-VERTEX_SHADER = dedent(
-    """\
-    attribute highp vec4 vertices;
-    varying highp vec2 coords;
-    void main() {
-        gl_Position = vertices;
-        coords = vertices.xy;
-    }
-    """
-)
-FRAGMENT_SHADER = dedent(
-    """\
-    uniform lowp float t;
-    varying highp vec2 coords;
-    void main() {
-        lowp float i = 1. - (pow(abs(coords.x), 4.) + pow(abs(coords.y), 4.));
-        i = smoothstep(t - 0.8, t + 0.8, i);
-        i = floor(i * 20.) / 20.;
-        gl_FragColor = vec4(coords * .5 + .5, i, i);
-    }
-    """
-)
-
-
-class SquircleRenderer(QOpenGLFunctions):
-    def __init__(self):
-        QOpenGLFunctions.__init__(self)
-        self._viewport_size = QSize()
-        self._t = 0.0
-        self._program = None
-        self._window = QQuickWindow()
-
-    def setT(self, t):
-        self._t = t
-
-    def setViewportSize(self, size):
-        self._viewport_size = size
-
-    def setWindow(self, window):
-        self._window = window
-
-    @Slot()
-    def init(self):
-        if not self._program:
-            rif = self._window.rendererInterface()
-            assert (rif.graphicsApi() == QSGRendererInterface.OpenGL)
-            self.initializeOpenGLFunctions()
-            self._program = QOpenGLShaderProgram()
-            self._program.addCacheableShaderFromSourceCode(QOpenGLShader.Vertex, VERTEX_SHADER)
-            self._program.addCacheableShaderFromSourceCode(QOpenGLShader.Fragment, FRAGMENT_SHADER)
-            self._program.bindAttributeLocation("vertices", 0)
-            self._program.link()
-
-    @Slot()
-    def paint(self):
-        # Play nice with the RHI. Not strictly needed when the scenegraph uses
-        # OpenGL directly.
-        self._window.beginExternalCommands()
-
-        self._program.bind()
-
-        self._program.enableAttributeArray(0)
-
-        values = np.array([-1, -1, 1, -1, -1, 1, 1, 1], dtype="single")
-
-        # This example relies on (deprecated) client-side pointers for the vertex
-        # input. Therefore, we have to make sure no vertex buffer is bound.
-        self.glBindBuffer(GL_ARRAY_BUFFER, 0)
-
-        self._program.setAttributeArray(0, GL_FLOAT, values, 2)
-        self._program.setUniformValue1f("t", self._t)
-
-        self.glViewport(0, 0, self._viewport_size.width(), self._viewport_size.height())
-
-        self.glDisable(GL_DEPTH_TEST)
-
-        self.glEnable(GL_BLEND)
-        self.glBlendFunc(GL_SRC_ALPHA, GL_ONE)
-
-        self.glDrawArrays(GL_TRIANGLE_STRIP, 0, 4)
-
-        self._program.disableAttributeArray(0)
-        self._program.release()
-
-        self._window.endExternalCommands()