Make texture sharing mechanism hidden and experimental

The texture sharing mechanism has some issues still, and
it is not strictly required in Qt 6.0. So we keep the code
for now, but hide the feature and document it as experimental
and unsupported. This makes it convenient to bring it back
later, maybe with a revised API, when have more concrete use
cases.

The example is moved into manual tests for now, and can
easily be brought back later.

Change-Id: Icfe4841b329bebcf9d63d1e00a4f6ae613c5092f
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>

22 files changed, 1 insertions, 868 deletions

diff --git a/examples/wayland/.prev_CMakeLists.txt b/examples/wayland/.prev_CMakeLists.txt
index 490035a94..400b44128 100644
--- a/examples/wayland/.prev_CMakeLists.txt
+++ b/examples/wayland/.prev_CMakeLists.txt
@@ -19,5 +19,4 @@ if(TARGET Qt::Quick AND TARGET Qt::WaylandClient)
 endif()
 if(QT_FEATURE_opengl AND TARGET Qt::Quick AND TARGET Qt::WaylandClient)
     add_subdirectory(server-buffer)
-    add_subdirectory(texture-sharing)
 endif()
diff --git a/examples/wayland/CMakeLists.txt b/examples/wayland/CMakeLists.txt
index 1275ca2ed..78132bb17 100644
--- a/examples/wayland/CMakeLists.txt
+++ b/examples/wayland/CMakeLists.txt
@@ -20,6 +20,5 @@ if(TARGET Qt::Quick AND TARGET Qt::WaylandClient)
 endif()
 if(QT_FEATURE_opengl AND TARGET Qt::Quick AND TARGET Qt::WaylandClient)
     add_subdirectory(server-buffer)
-    add_subdirectory(texture-sharing)
 endif()
 endif() # special case
diff --git a/examples/wayland/texture-sharing/.gitignore b/examples/wayland/texture-sharing/.gitignore
deleted file mode 100644
index c684448d3..000000000
--- a/examples/wayland/texture-sharing/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-custom-compositor/custom-compositor
-qml-client/qml-client
diff --git a/examples/wayland/texture-sharing/CMakeLists.txt b/examples/wayland/texture-sharing/CMakeLists.txt
deleted file mode 100644
index bf6a7cbf9..000000000
--- a/examples/wayland/texture-sharing/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-# Generated from texture-sharing.pro.
-
-add_subdirectory(qml-client)
-add_subdirectory(custom-compositor)
diff --git a/examples/wayland/texture-sharing/README b/examples/wayland/texture-sharing/README
deleted file mode 100644
index 27ea76745..000000000
--- a/examples/wayland/texture-sharing/README
+++ /dev/null
@@ -1,27 +0,0 @@
-This example shows how to use the texture sharing extension, allowing
-multiple clients to share the same copy of an image in graphics memory.
-
-The texture sharing extension uses the server buffer extension to transport
-graphics buffers. There are different server buffer plugins for different
-graphics hardware. This is specified by setting an environment variable for
-the compositor process.
-
--On a device with Mesa and Intel integrated graphics, set:
-
-  QT_WAYLAND_SERVER_BUFFER_INTEGRATION=dmabuf-server
-
--On a device with NVIDIA graphics, set:
-
-  QT_WAYLAND_SERVER_BUFFER_INTEGRATION=vulkan-server
-
-'custom-compositor' shows how to write a server that creates shared textures
-programmatically.
-
-The file 'minimal-compositor.qml' shows how to add texture sharing to an
-existing compositor, using only QML. It is based on the minimal-qml example,
-and can be executed with qmlscene.
-
-'qml-client' shows how to use shared textures in a Qt Quick client.
-The compositor uses the hardware integration extension to broadcast
-the name of the server buffer integration to all clients, so qml-client
-can be started like any normal wayland client.
diff --git a/examples/wayland/texture-sharing/custom-compositor/CMakeLists.txt b/examples/wayland/texture-sharing/custom-compositor/CMakeLists.txt
deleted file mode 100644
index 0ca81f26f..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/CMakeLists.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-# Generated from custom-compositor.pro.
-
-cmake_minimum_required(VERSION 3.14)
-project(texture-sharing-custom-compositor LANGUAGES CXX)
-
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTORCC ON)
-set(CMAKE_AUTOUIC ON)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-  set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/wayland/texture-sharing/custom-compositor")
-
-find_package(Qt6 COMPONENTS Core)
-find_package(Qt6 COMPONENTS Gui)
-find_package(Qt6 COMPONENTS Qml)
-find_package(Qt6 COMPONENTS WaylandCompositor)
-
-qt_add_executable(texture-sharing-custom-compositor
-    main.cpp
-)
-set_target_properties(texture-sharing-custom-compositor PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-target_link_libraries(texture-sharing-custom-compositor PUBLIC
-    Qt::Core
-    Qt::Gui
-    Qt::Qml
-    Qt::WaylandCompositorPrivate
-)
-
-
-# Resources:
-set(compositor_resource_files
-    "images/background.png"
-    "images/car.ktx"
-    "images/qt4.astc"
-    "images/qt_logo.png"
-    "qml/main.qml"
-)
-
-qt6_add_resources(texture-sharing-custom-compositor "compositor"
-    PREFIX
-        "/"
-    FILES
-        ${compositor_resource_files}
-)
-
-install(TARGETS texture-sharing-custom-compositor
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/wayland/texture-sharing/custom-compositor/compositor.qrc b/examples/wayland/texture-sharing/custom-compositor/compositor.qrc
deleted file mode 100644
index 86a8567f7..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/compositor.qrc
+++ /dev/null
@@ -1,9 +0,0 @@
-<RCC>
-    <qresource prefix="/">
-        <file>images/background.png</file>
-        <file>images/qt_logo.png</file>
-        <file>images/qt4.astc</file>
-        <file>images/car.ktx</file>
-        <file>qml/main.qml</file>
-    </qresource>
-</RCC>
diff --git a/examples/wayland/texture-sharing/custom-compositor/custom-compositor.pro b/examples/wayland/texture-sharing/custom-compositor/custom-compositor.pro
deleted file mode 100644
index 098034f3b..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/custom-compositor.pro
+++ /dev/null
@@ -1,17 +0,0 @@
-QT += core gui qml
-
-QT += waylandcompositor-private
-
-SOURCES += \
-    main.cpp
-
-OTHER_FILES = \
-    qml/main.qml \
-    images/background.jpg
-
-RESOURCES += compositor.qrc
-
-TARGET = texture-sharing-custom-compositor
-
-target.path = $$[QT_INSTALL_EXAMPLES]/wayland/texture-sharing/custom-compositor
-INSTALLS += target
diff --git a/examples/wayland/texture-sharing/custom-compositor/images/background.png b/examples/wayland/texture-sharing/custom-compositor/images/background.png
deleted file mode 100644
index 845830c59..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/images/background.png
+++ /dev/null
diff --git a/examples/wayland/texture-sharing/custom-compositor/images/car.ktx b/examples/wayland/texture-sharing/custom-compositor/images/car.ktx
deleted file mode 100644
index 2aefdd306..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/images/car.ktx
+++ /dev/null
diff --git a/examples/wayland/texture-sharing/custom-compositor/images/qt4.astc b/examples/wayland/texture-sharing/custom-compositor/images/qt4.astc
deleted file mode 100644
index 7f7a3f473..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/images/qt4.astc
+++ /dev/null
diff --git a/examples/wayland/texture-sharing/custom-compositor/images/qt_logo.png b/examples/wayland/texture-sharing/custom-compositor/images/qt_logo.png
deleted file mode 100644
index 5e2b355ea..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/images/qt_logo.png
+++ /dev/null
diff --git a/examples/wayland/texture-sharing/custom-compositor/main.cpp b/examples/wayland/texture-sharing/custom-compositor/main.cpp
deleted file mode 100644
index af3750247..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/main.cpp
+++ /dev/null
@@ -1,147 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the examples of the Qt Wayland module
-**
-** $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$
-**
-****************************************************************************/
-
-#include <QtCore/QUrl>
-#include <QtCore/QDebug>
-#include <QtGui/QGuiApplication>
-#include <QtQml/QQmlApplicationEngine>
-
-#include <QtQml/qqml.h>
-#include <QtQml/QQmlEngine>
-
-#include <QtGui/QPainter>
-#include <QtGui/QImage>
-
-#include <QtCore/QDateTime>
-
-#include "QtWaylandCompositor/private/qwltexturesharingextension_p.h"
-
-#ifndef GL_RGBA8
-#define GL_RGBA8 0x8058
-#endif
-
-class CustomSharingExtension : public QWaylandTextureSharingExtension
-{
-    Q_OBJECT
-public:
-    CustomSharingExtension() {qDebug("Instantiating custom texture sharing extension.");}
-protected:
-    bool customPixelData(const QString &key, QByteArray *data, QSize *size, uint *glInternalFormat) override
-    {
-        qDebug() << "CustomSharingExtension looking for local texture data for" << key;
-        if (key.startsWith("unreasonably large ")) {
-            int w = 10000;
-            int h = 10000;
-            int numBytes = w * h * 4;
-            *data = QByteArray(numBytes, 0);
-            quint32 *pixels = reinterpret_cast<quint32*>(data->data());
-            for (int i = 0; i < w*h; ++i)
-                pixels[i] = 0xff7f1fff;
-            *glInternalFormat = GL_RGBA8;
-            *size = QSize(w,h);
-            return true;
-        }
-
-        QImage img;
-
-        if (key == QLatin1String("test pattern 1")) {
-            img = QImage(128,128,QImage::Format_ARGB32_Premultiplied);
-            img.fill(QColor(0x55,0x0,0x55,0x01));
-            {
-                QPainter p(&img);
-                QPen pen = p.pen();
-                pen.setWidthF(3);
-                pen.setColor(Qt::red);
-                p.setPen(pen);
-                p.drawLine(0,0,128,128);
-                pen.setColor(Qt::green);
-                p.setPen(pen);
-                p.drawLine(128,0,0,128);
-                pen.setColor(Qt::blue);
-                p.setPen(pen);
-                p.drawLine(32,16,96,16);
-                pen.setColor(Qt::black);
-                p.setPen(pen);
-                p.translate(64, 64);
-                p.rotate(45);
-                p.drawText(QRect(-48, -32, 96, 64),
-                           QDateTime::currentDateTime().toString(),
-                           QTextOption(Qt::AlignHCenter));
-            }
-        }
-
-        if (!img.isNull()) {
-            img = img.convertToFormat(QImage::Format_RGBA8888);
-            *data = QByteArray(reinterpret_cast<const char*>(img.constBits()), img.sizeInBytes());
-            *size = img.size();
-            *glInternalFormat = GL_RGBA8;
-            return true;
-        }
-        return false;
-    }
-};
-
-Q_COMPOSITOR_DECLARE_QUICK_EXTENSION_CLASS(CustomSharingExtension);
-
-int main(int argc, char *argv[])
-{
-    QCoreApplication::setAttribute(Qt::AA_ShareOpenGLContexts, true);
-    QGuiApplication app(argc, argv);
-    QQmlApplicationEngine appEngine;
-
-    qmlRegisterType<CustomSharingExtensionQuickExtension>("com.theqtcompany.customsharingextension", 1, 0, "CustomSharingExtension");
-    appEngine.addImageProvider("wlshared", new QWaylandSharedTextureProvider);
-
-    appEngine.load(QUrl("qrc:///qml/main.qml"));
-
-    return app.exec();
-}
-
-#include "main.moc"
diff --git a/examples/wayland/texture-sharing/custom-compositor/qml/main.qml b/examples/wayland/texture-sharing/custom-compositor/qml/main.qml
deleted file mode 100644
index 7a5705169..000000000
--- a/examples/wayland/texture-sharing/custom-compositor/qml/main.qml
+++ /dev/null
@@ -1,119 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the examples of the Qt Wayland module
-**
-** $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 QtQuick.Window
-import QtWayland.Compositor
-import QtWayland.Compositor.XdgShell
-import QtWayland.Compositor.WlShell
-
-import com.theqtcompany.customsharingextension
-
-WaylandCompositor {
-    WaylandOutput {
-        sizeFollowsWindow: true
-        window: Window {
-            width: 1024
-            height: 768
-            visible: true
-            Image {
-                id: background
-                anchors.fill: parent
-                fillMode: Image.Tile
-                source: "qrc:/images/background.png"
-                smooth: true
-
-                Rectangle {
-                    width: 100
-                    height: 100
-                    color: "red"
-                    anchors.bottom: parent.bottom;
-                    anchors.right: parent.right;
-                    MouseArea {
-                        anchors.fill: parent
-                        onClicked: sharedTextureImage.source = "image://wlshared/car.ktx"
-                    }
-                }
-                Image {
-                    id: sharedTextureImage
-                    anchors.bottom: parent.bottom;
-                    anchors.right: parent.right;
-                    source: ""
-                }
-                Image {
-                    id: topRightImage
-                    anchors.top: parent.top;
-                    anchors.right: parent.right;
-                    source: "image://wlshared/qt_logo.png"
-                }
-            }
-            Repeater {
-                model: shellSurfaces
-                ShellSurfaceItem {
-                    shellSurface: modelData
-                    onSurfaceDestroyed: shellSurfaces.remove(index)
-                }
-            }
-        }
-    }
-    WlShell {
-        onWlShellSurfaceCreated:
-            shellSurfaces.append({shellSurface: shellSurface});
-    }
-    XdgShell {
-        onToplevelCreated:
-            shellSurfaces.append({shellSurface: xdgSurface});
-    }
-    ListModel { id: shellSurfaces }
-
-    CustomSharingExtension {
-        imageSearchPath: ":/images;."
-    }
-}
diff --git a/examples/wayland/texture-sharing/minimal-compositor.qml b/examples/wayland/texture-sharing/minimal-compositor.qml
deleted file mode 100644
index a832b051f..000000000
--- a/examples/wayland/texture-sharing/minimal-compositor.qml
+++ /dev/null
@@ -1,90 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the examples 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 QtQuick.Window
-import QtWayland.Compositor
-import QtWayland.Compositor.XdgShell
-import QtWayland.Compositor.WlShell
-
-// importing the texture sharing extension:
-import QtWayland.Compositor.TextureSharingExtension
-
-WaylandCompositor {
-    WaylandOutput {
-        sizeFollowsWindow: true
-        window: Window {
-            width: 1024
-            height: 768
-            visible: true
-            Repeater {
-                model: shellSurfaces
-                ShellSurfaceItem {
-                    shellSurface: modelData
-                    onSurfaceDestroyed: shellSurfaces.remove(index)
-                }
-            }
-        }
-    }
-    WlShell {
-        onWlShellSurfaceCreated:
-            shellSurfaces.append({shellSurface: shellSurface});
-    }
-    XdgShell {
-        onToplevelCreated:
-            shellSurfaces.append({shellSurface: xdgSurface});
-    }
-    ListModel { id: shellSurfaces }
-
-    // instantiating the texture sharing extension:
-    TextureSharingExtension {
-        imageSearchPath: ".;/tmp;/usr/share/pixmaps"
-    }
-}
diff --git a/examples/wayland/texture-sharing/qml-client/CMakeLists.txt b/examples/wayland/texture-sharing/qml-client/CMakeLists.txt
deleted file mode 100644
index 76161a786..000000000
--- a/examples/wayland/texture-sharing/qml-client/CMakeLists.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-# Generated from qml-client.pro.
-
-cmake_minimum_required(VERSION 3.14)
-project(qml-client LANGUAGES CXX)
-
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTORCC ON)
-set(CMAKE_AUTOUIC ON)
-
-if(NOT DEFINED INSTALL_EXAMPLESDIR)
-  set(INSTALL_EXAMPLESDIR "examples")
-endif()
-
-set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/wayland/texture-sharing/qml-client")
-
-find_package(Qt6 COMPONENTS Core)
-find_package(Qt6 COMPONENTS Gui)
-find_package(Qt6 COMPONENTS Quick)
-
-qt_add_executable(qml-client
-    main.cpp
-)
-set_target_properties(qml-client PROPERTIES
-    WIN32_EXECUTABLE TRUE
-    MACOSX_BUNDLE TRUE
-)
-target_link_libraries(qml-client PUBLIC
-    Qt::Core
-    Qt::Gui
-    Qt::Quick
-)
-
-
-# Resources:
-set(qml-client_resource_files
-    "main.qml"
-)
-
-qt6_add_resources(qml-client "qml-client"
-    PREFIX
-        "/"
-    FILES
-        ${qml-client_resource_files}
-)
-
-install(TARGETS qml-client
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
diff --git a/examples/wayland/texture-sharing/qml-client/main.cpp b/examples/wayland/texture-sharing/qml-client/main.cpp
deleted file mode 100644
index 618d6701d..000000000
--- a/examples/wayland/texture-sharing/qml-client/main.cpp
+++ /dev/null
@@ -1,68 +0,0 @@
-/****************************************************************************
- **
- ** Copyright (C) 2019 The Qt Company Ltd.
- ** Contact: https://www.qt.io/licensing/
- **
- ** This file is part of the examples of the Qt Wayland module
- **
- ** $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$
- **
- ****************************************************************************/
-
-#include <QGuiApplication>
-#include <QtQuick/QQuickView>
-#include <QStandardPaths>
-#include <QFileInfo>
-#include <QQmlApplicationEngine>
-#include <QDebug>
-#include <QDir>
-#include <QTimer>
-
-int main(int argc, char **argv)
-{
-    QGuiApplication app(argc, argv);
-    QQmlApplicationEngine appEngine;
-
-    appEngine.load(QUrl("qrc:///main.qml"));
-
-    return app.exec();
-}
diff --git a/examples/wayland/texture-sharing/qml-client/main.qml b/examples/wayland/texture-sharing/qml-client/main.qml
deleted file mode 100644
index 2c2584043..000000000
--- a/examples/wayland/texture-sharing/qml-client/main.qml
+++ /dev/null
@@ -1,248 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2019 The Qt Company Ltd.
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the examples of the Qt Wayland module
-**
-** $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 QtQuick.Window
-
-import QtWayland.Client.TextureSharing
-
-Window {
-    width: 800
-    height: 500
-    visible: true
-
-    Rectangle {
-        anchors.fill: parent
-        color: "#C0FEFE"
-
-        Flickable {
-            anchors.fill: parent
-            contentHeight: imageGrid.height
-
-            Grid {
-                id: imageGrid
-                columns: 2
-                width: parent.width
-                spacing: 25
-                padding: 25
-
-
-                // loadedImage
-                Text {
-                    width: 400
-                    wrapMode: Text.Wrap
-                    text: "An Image element using the shared buffer provider to load from a PNG image.<br>" +
-                          "Source: '" + loadedImage.source + "'" +
-                          (loadedImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                }
-                Image {
-                    id: loadedImage
-                    fillMode: Image.PreserveAspectFit
-                    source: "image://wlshared/qt_logo.png"
-                }
-                Rectangle {
-                    visible: loadedImage.height <= 0
-                    width:100; height: 100
-                    color: "green"
-                }
-
-                // paintedImage
-                Text {
-                    width: 400
-                    wrapMode: Text.Wrap
-                    text: "An Image element using the shared buffer provider.<br>" +
-                          "This texture is created by the compositor using QPainter. <br>" +
-                          "Source: '" + paintedImage.source + "'" +
-                          (paintedImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                }
-                Image {
-                    id: paintedImage
-                    fillMode: Image.PreserveAspectFit
-                    source: "image://wlshared/test pattern 1"
-                }
-                Rectangle {
-                    visible: paintedImage.height <= 0
-                    width:100; height: 100
-                    color: "green"
-                }
-
-                // ktxImage
-                Text {
-                    width: 400
-                    wrapMode: Text.Wrap
-                    text: "An Image element using the shared buffer provider to load an ETC2 compressed texture." +
-                          "<br>Source: '" + ktxImage.source + "'" +
-                          (ktxImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                }
-                Image {
-                    id: ktxImage
-                    source: "image://wlshared/car.ktx"
-                    fillMode: Image.PreserveAspectFit
-                }
-                Rectangle {
-                    visible: ktxImage.height <= 0
-                    width:100; height: 100
-                    color: "green"
-                }
-
-                //astcImage
-                Text {
-                    width: 400
-                    wrapMode: Text.Wrap
-                    text: "An Image element using the shared buffer provider to load an ASTC compressed texture." +
-                          "<br>Source: '" + astcImage.source + "'" +
-                          (astcImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                }
-
-                Image {
-                    id: astcImage
-                    source: "image://wlshared/qt4.astc"
-                    fillMode: Image.PreserveAspectFit
-                }
-                Rectangle {
-                    visible: astcImage.height <= 0
-                    width:100; height: 100
-                    color: "green"
-                }
-
-                // dynamicImage
-                Column {
-                    Text {
-                        width: 400
-                        wrapMode: Text.Wrap
-                        text: "An Image element using the shared buffer provider." +
-                              "<br>Source: '" + dynamicImage.source + "'" +
-                              (dynamicImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                    }
-                    Row {
-                        spacing: 10
-                        Text {
-                            text: "Enter filename:"
-                        }
-                        Rectangle {
-                            color: "white"
-                            width: sourceEdit.contentWidth + 30
-                            height: sourceEdit.contentHeight
-                            TextInput {
-                                id: sourceEdit
-                                anchors.fill: parent
-                                horizontalAlignment: TextInput.AlignHCenter
-                                onEditingFinished: dynamicImage.source = text ? "image://wlshared/" + text : ""
-                            }
-                        }
-                    }
-                }
-                Image {
-                    id: dynamicImage
-                    fillMode: Image.PreserveAspectFit
-                }
-                Rectangle {
-                    visible: dynamicImage.height <= 0
-                    width:100; height: 100
-                    color: "green"
-                }
-
-                // largeImage
-                Text {
-                    width: 400
-                    wrapMode: Text.Wrap
-                    text: "An Image element using the shared buffer provider.<br>" +
-                          "Left click to load a very large image. " +
-                          "Right click to unload the image, potentially freeing graphics memory on the server-side " +
-                           "if no other client is using the image." +
-                           "<br>Source: '" + largeImage.source + "'" +
-                           "<br>Size: " + largeImage.sourceSize +
-                           (largeImage.sourceSize.height <= 0 ? "<font color=\"#FF0000\"><br>[Image not loaded]</font>" : "")
-                }
-
-                Rectangle {
-                    width: 200
-                    height: 200
-                    border.color: "black"
-                    border.width: 2
-                    color: "transparent"
-                    Image {
-                        id: largeImage
-                        anchors.fill: parent
-                        fillMode: Image.PreserveAspectFit
-                    }
-                    MouseArea {
-                        anchors.fill: parent
-                        acceptedButtons: Qt.LeftButton | Qt.RightButton
-                        onClicked: {
-                            if (mouse.button == Qt.LeftButton)
-                                largeImage.source = "image://wlshared/unreasonably large image"
-                            else
-                                largeImage.source = ""
-
-                        }
-                    }
-                }
-
-            } // Grid
-        }
-
-        Rectangle {
-            color: "gray"
-            width: parent.width
-            height: 20
-            anchors.bottom: parent.bottom
-
-            Text {
-                color: "white"
-                anchors.fill: parent
-                horizontalAlignment: Text.AlignHCenter
-                verticalAlignment: Text.AlignVCenter
-                text: "Scroll or drag for more"
-            }
-        }
-
-    }
-}
diff --git a/examples/wayland/texture-sharing/qml-client/qml-client.pro b/examples/wayland/texture-sharing/qml-client/qml-client.pro
deleted file mode 100644
index 67d5c7071..000000000
--- a/examples/wayland/texture-sharing/qml-client/qml-client.pro
+++ /dev/null
@@ -1,13 +0,0 @@
-QT += quick
-
-SOURCES += \
-    main.cpp
-
-RESOURCES += \
-    qml-client.qrc
-
-DISTFILES += \
-    main.qml
-
-target.path = $$[QT_INSTALL_EXAMPLES]/wayland/texture-sharing/qml-client
-INSTALLS += target
diff --git a/examples/wayland/texture-sharing/qml-client/qml-client.qrc b/examples/wayland/texture-sharing/qml-client/qml-client.qrc
deleted file mode 100644
index 5f6483ac3..000000000
--- a/examples/wayland/texture-sharing/qml-client/qml-client.qrc
+++ /dev/null
@@ -1,5 +0,0 @@
-<RCC>
-    <qresource prefix="/">
-        <file>main.qml</file>
-    </qresource>
-</RCC>
diff --git a/examples/wayland/texture-sharing/texture-sharing.pro b/examples/wayland/texture-sharing/texture-sharing.pro
deleted file mode 100644
index 3f7792828..000000000
--- a/examples/wayland/texture-sharing/texture-sharing.pro
+++ /dev/null
@@ -1,5 +0,0 @@
-TEMPLATE=subdirs
-
-SUBDIRS += \
-           qml-client \
-           custom-compositor
diff --git a/examples/wayland/wayland.pro b/examples/wayland/wayland.pro
index e7ff0a164..c61036234 100644
--- a/examples/wayland/wayland.pro
+++ b/examples/wayland/wayland.pro
@@ -23,8 +23,7 @@ qtHaveModule(quick) {
 
             qtConfig(opengl) {
                 SUBDIRS += \
-                    server-buffer \
-                    texture-sharing
+                    server-buffer
             }
     }
     SUBDIRS += hwlayer-compositor