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-rw-r--r--examples/opengl/hellogles3/glwidget.cpp236
-rw-r--r--examples/opengl/hellogles3/glwidget.h87
-rw-r--r--examples/opengl/hellogles3/hellogles3.pro15
-rw-r--r--examples/opengl/hellogles3/hellogles3.qrc5
-rw-r--r--examples/opengl/hellogles3/main.cpp78
-rw-r--r--examples/opengl/hellogles3/mainwindow.cpp58
-rw-r--r--examples/opengl/hellogles3/mainwindow.h54
-rw-r--r--examples/opengl/hellogles3/qtlogo.pngbin0 -> 5402 bytes
8 files changed, 533 insertions, 0 deletions
diff --git a/examples/opengl/hellogles3/glwidget.cpp b/examples/opengl/hellogles3/glwidget.cpp
new file mode 100644
index 0000000000..74056d63c2
--- /dev/null
+++ b/examples/opengl/hellogles3/glwidget.cpp
@@ -0,0 +1,236 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <QImage>
+#include <QOpenGLTexture>
+#include <QOpenGLShaderProgram>
+#include <QOpenGLBuffer>
+#include <QOpenGLContext>
+#include <QOpenGLVertexArrayObject>
+#include <QOpenGLExtraFunctions>
+#include <QPropertyAnimation>
+#include <QPauseAnimation>
+#include <QSequentialAnimationGroup>
+
+GLWidget::GLWidget()
+ : m_texture(0),
+ m_program(0),
+ m_vbo(0),
+ m_vao(0),
+ m_target(0, 0, -1),
+ m_uniformsDirty(true)
+{
+ m_world.setToIdentity();
+ m_world.translate(0, 0, -1);
+ m_world.rotate(180, 1, 0, 0);
+
+ QSequentialAnimationGroup *animGroup = new QSequentialAnimationGroup(this);
+ animGroup->setLoopCount(-1);
+ QPropertyAnimation *zAnim0 = new QPropertyAnimation(this, QByteArrayLiteral("z"));
+ zAnim0->setStartValue(0.0f);
+ zAnim0->setEndValue(1.0f);
+ zAnim0->setDuration(2000);
+ animGroup->addAnimation(zAnim0);
+ QPropertyAnimation *zAnim1 = new QPropertyAnimation(this, QByteArrayLiteral("z"));
+ zAnim1->setStartValue(0.0f);
+ zAnim1->setEndValue(70.0f);
+ zAnim1->setDuration(4000);
+ zAnim1->setEasingCurve(QEasingCurve::OutElastic);
+ animGroup->addAnimation(zAnim1);
+ QPropertyAnimation *zAnim2 = new QPropertyAnimation(this, QByteArrayLiteral("z"));
+ zAnim2->setStartValue(70.0f);
+ zAnim2->setEndValue(0.0f);
+ zAnim2->setDuration(2000);
+ animGroup->addAnimation(zAnim2);
+ animGroup->start();
+}
+
+GLWidget::~GLWidget()
+{
+ makeCurrent();
+ delete m_texture;
+ delete m_program;
+ delete m_vbo;
+ delete m_vao;
+}
+
+void GLWidget::setZ(float v)
+{
+ m_eye.setZ(v);
+ m_uniformsDirty = true;
+ update();
+}
+
+static const char *vertexShaderSource =
+ "layout(location = 0) in vec4 vertex;\n"
+ "layout(location = 1) in vec3 normal;\n"
+ "out vec3 vert;\n"
+ "out vec3 vertNormal;\n"
+ "out vec3 color;\n"
+ "uniform mat4 projMatrix;\n"
+ "uniform mat4 camMatrix;\n"
+ "uniform mat4 worldMatrix;\n"
+ "uniform sampler2D sampler;\n"
+ "void main() {\n"
+ " ivec2 pos = ivec2(gl_InstanceID % 32, gl_InstanceID / 32);\n"
+ " vec2 t = vec2(-16 + pos.x, -18 + pos.y);\n"
+ " mat4 wm = mat4(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, t.x, t.y, 0, 1) * worldMatrix;\n"
+ " color = texelFetch(sampler, pos, 0).rgb * vec3(0.4, 1.0, 0.0);\n"
+ " vert = vec3(wm * vertex);\n"
+ " vertNormal = mat3(transpose(inverse(wm))) * normal;\n"
+ " gl_Position = projMatrix * camMatrix * wm * vertex;\n"
+ "}\n";
+
+static const char *fragmentShaderSource =
+ "in highp vec3 vert;\n"
+ "in highp vec3 vertNormal;\n"
+ "in highp vec3 color;\n"
+ "out highp vec4 fragColor;\n"
+ "uniform highp vec3 lightPos;\n"
+ "void main() {\n"
+ " highp vec3 L = normalize(lightPos - vert);\n"
+ " highp float NL = max(dot(normalize(vertNormal), L), 0.0);\n"
+ " highp vec3 col = clamp(color * 0.2 + color * 0.8 * NL, 0.0, 1.0);\n"
+ " fragColor = vec4(col, 1.0);\n"
+ "}\n";
+
+QByteArray versionedShaderCode(const char *src)
+{
+ QByteArray versionedSrc;
+
+ if (QOpenGLContext::currentContext()->isOpenGLES())
+ versionedSrc.append(QByteArrayLiteral("#version 300 es\n"));
+ else
+ versionedSrc.append(QByteArrayLiteral("#version 330\n"));
+
+ versionedSrc.append(src);
+ return versionedSrc;
+}
+
+void GLWidget::initializeGL()
+{
+ QOpenGLFunctions *f = QOpenGLContext::currentContext()->functions();
+
+ if (m_texture) {
+ delete m_texture;
+ m_texture = 0;
+ }
+ QImage img(":/qtlogo.png");
+ Q_ASSERT(!img.isNull());
+ m_texture = new QOpenGLTexture(img.scaled(32, 36).mirrored());
+
+ if (m_program) {
+ delete m_program;
+ m_program = 0;
+ }
+ m_program = new QOpenGLShaderProgram;
+ // Prepend the correct version directive to the sources. The rest is the
+ // same, thanks to the common GLSL syntax.
+ m_program->addShaderFromSourceCode(QOpenGLShader::Vertex, versionedShaderCode(vertexShaderSource));
+ m_program->addShaderFromSourceCode(QOpenGLShader::Fragment, versionedShaderCode(fragmentShaderSource));
+ m_program->link();
+
+ m_projMatrixLoc = m_program->uniformLocation("projMatrix");
+ m_camMatrixLoc = m_program->uniformLocation("camMatrix");
+ m_worldMatrixLoc = m_program->uniformLocation("worldMatrix");
+ m_lightPosLoc = m_program->uniformLocation("lightPos");
+
+ // Create a VAO. Not strictly required for ES 3, but it is for plain OpenGL.
+ if (m_vao) {
+ delete m_vao;
+ m_vao = 0;
+ }
+ m_vao = new QOpenGLVertexArrayObject;
+ if (m_vao->create())
+ m_vao->bind();
+
+ if (m_vbo) {
+ delete m_vbo;
+ m_vbo = 0;
+ }
+ m_program->bind();
+ m_vbo = new QOpenGLBuffer;
+ m_vbo->create();
+ m_vbo->bind();
+ m_vbo->allocate(m_logo.constData(), m_logo.count() * sizeof(GLfloat));
+ f->glEnableVertexAttribArray(0);
+ f->glEnableVertexAttribArray(1);
+ f->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), 0);
+ f->glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(GLfloat), reinterpret_cast<void *>(3 * sizeof(GLfloat)));
+ m_vbo->release();
+
+ f->glEnable(GL_DEPTH_TEST);
+ f->glEnable(GL_CULL_FACE);
+}
+
+void GLWidget::resizeGL(int w, int h)
+{
+ m_proj.setToIdentity();
+ m_proj.perspective(45.0f, GLfloat(w) / h, 0.01f, 100.0f);
+ m_uniformsDirty = true;
+}
+
+void GLWidget::paintGL()
+{
+ // Now use QOpenGLExtraFunctions instead of QOpenGLFunctions as we want to
+ // do more than what GL(ES) 2.0 offers.
+ QOpenGLExtraFunctions *f = QOpenGLContext::currentContext()->extraFunctions();
+
+ f->glClearColor(0, 0, 0, 1);
+ f->glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ m_program->bind();
+ m_texture->bind();
+
+ if (m_uniformsDirty) {
+ m_uniformsDirty = false;
+ QMatrix4x4 camera;
+ camera.lookAt(m_eye, m_eye + m_target, QVector3D(0, 1, 0));
+ m_program->setUniformValue(m_projMatrixLoc, m_proj);
+ m_program->setUniformValue(m_camMatrixLoc, camera);
+ m_program->setUniformValue(m_worldMatrixLoc, m_world);
+ m_program->setUniformValue(m_lightPosLoc, QVector3D(0, 0, 70));
+ }
+
+ // Now call a function introduced in OpenGL 3.1 / OpenGL ES 3.0. We
+ // requested a 3.3 or ES 3.0 context, so we know this will work.
+ f->glDrawArraysInstanced(GL_TRIANGLES, 0, m_logo.vertexCount(), 32 * 36);
+}
diff --git a/examples/opengl/hellogles3/glwidget.h b/examples/opengl/hellogles3/glwidget.h
new file mode 100644
index 0000000000..85830c32f5
--- /dev/null
+++ b/examples/opengl/hellogles3/glwidget.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QOpenGLWidget>
+#include <QMatrix4x4>
+#include <QVector3D>
+#include "../hellogl2/logo.h"
+
+class QOpenGLTexture;
+class QOpenGLShaderProgram;
+class QOpenGLBuffer;
+class QOpenGLVertexArrayObject;
+
+class GLWidget : public QOpenGLWidget
+{
+ Q_OBJECT
+ Q_PROPERTY(float z READ z WRITE setZ)
+
+public:
+ GLWidget();
+ ~GLWidget();
+
+ void initializeGL();
+ void resizeGL(int w, int h);
+ void paintGL();
+
+ float z() const { return m_eye.z(); }
+ void setZ(float v);
+
+private:
+ QOpenGLTexture *m_texture;
+ QOpenGLShaderProgram *m_program;
+ QOpenGLBuffer *m_vbo;
+ QOpenGLVertexArrayObject *m_vao;
+ Logo m_logo;
+ int m_projMatrixLoc;
+ int m_camMatrixLoc;
+ int m_worldMatrixLoc;
+ int m_lightPosLoc;
+ QMatrix4x4 m_proj;
+ QMatrix4x4 m_world;
+ QVector3D m_eye;
+ QVector3D m_target;
+ bool m_uniformsDirty;
+};
+
+#endif
diff --git a/examples/opengl/hellogles3/hellogles3.pro b/examples/opengl/hellogles3/hellogles3.pro
new file mode 100644
index 0000000000..299d439fd2
--- /dev/null
+++ b/examples/opengl/hellogles3/hellogles3.pro
@@ -0,0 +1,15 @@
+HEADERS = $$PWD/glwidget.h \
+ $$PWD/mainwindow.h \
+ $$PWD/../hellogl2/logo.h
+
+SOURCES = $$PWD/glwidget.cpp \
+ $$PWD/main.cpp \
+ $$PWD/mainwindow.cpp \
+ $$PWD/../hellogl2/logo.cpp
+
+QT += widgets
+
+RESOURCES += hellogles3.qrc
+
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogles3
+INSTALLS += target
diff --git a/examples/opengl/hellogles3/hellogles3.qrc b/examples/opengl/hellogles3/hellogles3.qrc
new file mode 100644
index 0000000000..f3a0978084
--- /dev/null
+++ b/examples/opengl/hellogles3/hellogles3.qrc
@@ -0,0 +1,5 @@
+<RCC>
+ <qresource>
+ <file>qtlogo.png</file>
+ </qresource>
+</RCC>
diff --git a/examples/opengl/hellogles3/main.cpp b/examples/opengl/hellogles3/main.cpp
new file mode 100644
index 0000000000..3125623395
--- /dev/null
+++ b/examples/opengl/hellogles3/main.cpp
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QSurfaceFormat>
+#include <QOpenGLContext>
+
+#include "mainwindow.h"
+
+// This example demonstrates easy, cross-platform usage of OpenGL ES 3.0 functions via
+// QOpenGLExtraFunctions in an application that works identically on desktop platforms
+// with OpenGL 3.3 and mobile/embedded devices with OpenGL ES 3.0.
+
+// The code is always the same, with the exception of two places: (1) the OpenGL context
+// creation has to have a sufficiently high version number for the features that are in
+// use, and (2) the shader code's version directive is different.
+
+int main(int argc, char *argv[])
+{
+ QSurfaceFormat fmt;
+ fmt.setDepthBufferSize(24);
+
+ // Request OpenGL 3.3 compatibility or OpenGL ES 3.0.
+ if (QOpenGLContext::openGLModuleType() == QOpenGLContext::LibGL) {
+ qDebug("Requesting 3.3 compatibility context");
+ fmt.setVersion(3, 3);
+ fmt.setProfile(QSurfaceFormat::CompatibilityProfile);
+ } else {
+ qDebug("Requesting 3.0 context");
+ fmt.setVersion(3, 0);
+ }
+
+ QSurfaceFormat::setDefaultFormat(fmt);
+
+ QApplication app(argc, argv);
+
+ MainWindow mainWindow;
+ mainWindow.showMaximized();
+
+ return app.exec();
+}
diff --git a/examples/opengl/hellogles3/mainwindow.cpp b/examples/opengl/hellogles3/mainwindow.cpp
new file mode 100644
index 0000000000..1ea72eb475
--- /dev/null
+++ b/examples/opengl/hellogles3/mainwindow.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "mainwindow.h"
+#include "glwidget.h"
+#include <QApplication>
+#include <QMenuBar>
+#include <QMenu>
+
+MainWindow::MainWindow()
+{
+ QMenuBar *menuBar = new QMenuBar;
+ QMenu *menuWindow = menuBar->addMenu(tr("&File"));
+ QAction *exitAction = new QAction(menuWindow);
+ exitAction->setText(tr("E&xit"));
+ menuWindow->addAction(exitAction);
+ connect(exitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
+ setMenuBar(menuBar);
+
+ setCentralWidget(new GLWidget);
+}
diff --git a/examples/opengl/hellogles3/mainwindow.h b/examples/opengl/hellogles3/mainwindow.h
new file mode 100644
index 0000000000..33c2c55669
--- /dev/null
+++ b/examples/opengl/hellogles3/mainwindow.h
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+};
+
+#endif
diff --git a/examples/opengl/hellogles3/qtlogo.png b/examples/opengl/hellogles3/qtlogo.png
new file mode 100644
index 0000000000..868fcea860
--- /dev/null
+++ b/examples/opengl/hellogles3/qtlogo.png
Binary files differ
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-22 07:16:57 +0000