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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 10:18:55 +0100
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 10:18:55 +0100
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /examples/opengl
downloadqt4-tools-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz
Long live Qt 4.5!
Diffstat (limited to 'examples/opengl')
-rw-r--r--examples/opengl/2dpainting/2dpainting.pro17
-rw-r--r--examples/opengl/2dpainting/glwidget.cpp73
-rw-r--r--examples/opengl/2dpainting/glwidget.h73
-rw-r--r--examples/opengl/2dpainting/helper.cpp91
-rw-r--r--examples/opengl/2dpainting/helper.h72
-rw-r--r--examples/opengl/2dpainting/main.cpp51
-rw-r--r--examples/opengl/2dpainting/widget.cpp73
-rw-r--r--examples/opengl/2dpainting/widget.h72
-rw-r--r--examples/opengl/2dpainting/window.cpp72
-rw-r--r--examples/opengl/2dpainting/window.h67
-rw-r--r--examples/opengl/README41
-rw-r--r--examples/opengl/framebufferobject/bubbles.svg215
-rw-r--r--examples/opengl/framebufferobject/designer.pngbin0 -> 2810 bytes
-rw-r--r--examples/opengl/framebufferobject/framebufferobject.pro22
-rw-r--r--examples/opengl/framebufferobject/framebufferobject.qrc6
-rw-r--r--examples/opengl/framebufferobject/glwidget.cpp309
-rw-r--r--examples/opengl/framebufferobject/glwidget.h82
-rw-r--r--examples/opengl/framebufferobject/main.cpp62
-rw-r--r--examples/opengl/framebufferobject2/cubelogo.pngbin0 -> 5920 bytes
-rw-r--r--examples/opengl/framebufferobject2/framebufferobject2.pro11
-rw-r--r--examples/opengl/framebufferobject2/framebufferobject2.qrc5
-rw-r--r--examples/opengl/framebufferobject2/glwidget.cpp249
-rw-r--r--examples/opengl/framebufferobject2/glwidget.h66
-rw-r--r--examples/opengl/framebufferobject2/main.cpp62
-rw-r--r--examples/opengl/grabber/glwidget.cpp284
-rw-r--r--examples/opengl/grabber/glwidget.h98
-rw-r--r--examples/opengl/grabber/grabber.pro12
-rw-r--r--examples/opengl/grabber/main.cpp52
-rw-r--r--examples/opengl/grabber/mainwindow.cpp207
-rw-r--r--examples/opengl/grabber/mainwindow.h95
-rw-r--r--examples/opengl/hellogl/glwidget.cpp266
-rw-r--r--examples/opengl/hellogl/glwidget.h99
-rw-r--r--examples/opengl/hellogl/hellogl.pro12
-rw-r--r--examples/opengl/hellogl/main.cpp52
-rw-r--r--examples/opengl/hellogl/window.cpp90
-rw-r--r--examples/opengl/hellogl/window.h70
-rw-r--r--examples/opengl/hellogl_es/bubble.cpp140
-rw-r--r--examples/opengl/hellogl_es/bubble.h77
-rw-r--r--examples/opengl/hellogl_es/cl_helper.h133
-rw-r--r--examples/opengl/hellogl_es/glwidget.cpp457
-rw-r--r--examples/opengl/hellogl_es/glwidget.h87
-rw-r--r--examples/opengl/hellogl_es/hellogl_es.pro34
-rw-r--r--examples/opengl/hellogl_es/main.cpp53
-rw-r--r--examples/opengl/hellogl_es/mainwindow.cpp108
-rw-r--r--examples/opengl/hellogl_es/mainwindow.h60
-rw-r--r--examples/opengl/hellogl_es/qt.pngbin0 -> 5174 bytes
-rw-r--r--examples/opengl/hellogl_es/texture.qrc5
-rw-r--r--examples/opengl/hellogl_es2/bubble.cpp140
-rw-r--r--examples/opengl/hellogl_es2/bubble.h77
-rw-r--r--examples/opengl/hellogl_es2/glwidget.cpp642
-rw-r--r--examples/opengl/hellogl_es2/glwidget.h94
-rw-r--r--examples/opengl/hellogl_es2/hellogl_es2.pro27
-rw-r--r--examples/opengl/hellogl_es2/main.cpp53
-rw-r--r--examples/opengl/hellogl_es2/mainwindow.cpp108
-rw-r--r--examples/opengl/hellogl_es2/mainwindow.h60
-rw-r--r--examples/opengl/hellogl_es2/qt.pngbin0 -> 5174 bytes
-rw-r--r--examples/opengl/hellogl_es2/texture.qrc5
-rw-r--r--examples/opengl/opengl.pro29
-rw-r--r--examples/opengl/overpainting/bubble.cpp113
-rw-r--r--examples/opengl/overpainting/bubble.h76
-rw-r--r--examples/opengl/overpainting/glwidget.cpp360
-rw-r--r--examples/opengl/overpainting/glwidget.h114
-rw-r--r--examples/opengl/overpainting/main.cpp51
-rw-r--r--examples/opengl/overpainting/overpainting.pro13
-rw-r--r--examples/opengl/pbuffers/cubelogo.pngbin0 -> 5920 bytes
-rw-r--r--examples/opengl/pbuffers/glwidget.cpp260
-rw-r--r--examples/opengl/pbuffers/glwidget.h70
-rw-r--r--examples/opengl/pbuffers/main.cpp62
-rw-r--r--examples/opengl/pbuffers/pbuffers.pro11
-rw-r--r--examples/opengl/pbuffers/pbuffers.qrc5
-rw-r--r--examples/opengl/pbuffers2/bubbles.svg215
-rw-r--r--examples/opengl/pbuffers2/designer.pngbin0 -> 2810 bytes
-rw-r--r--examples/opengl/pbuffers2/glwidget.cpp326
-rw-r--r--examples/opengl/pbuffers2/glwidget.h85
-rw-r--r--examples/opengl/pbuffers2/main.cpp62
-rw-r--r--examples/opengl/pbuffers2/pbuffers2.pro21
-rw-r--r--examples/opengl/pbuffers2/pbuffers2.qrc6
-rw-r--r--examples/opengl/samplebuffers/glwidget.cpp165
-rw-r--r--examples/opengl/samplebuffers/glwidget.h62
-rw-r--r--examples/opengl/samplebuffers/main.cpp72
-rw-r--r--examples/opengl/samplebuffers/samplebuffers.pro10
-rw-r--r--examples/opengl/textures/glwidget.cpp182
-rw-r--r--examples/opengl/textures/glwidget.h84
-rw-r--r--examples/opengl/textures/images/side1.pngbin0 -> 935 bytes
-rw-r--r--examples/opengl/textures/images/side2.pngbin0 -> 1622 bytes
-rw-r--r--examples/opengl/textures/images/side3.pngbin0 -> 2117 bytes
-rw-r--r--examples/opengl/textures/images/side4.pngbin0 -> 1222 bytes
-rw-r--r--examples/opengl/textures/images/side5.pngbin0 -> 1806 bytes
-rw-r--r--examples/opengl/textures/images/side6.pngbin0 -> 2215 bytes
-rw-r--r--examples/opengl/textures/main.cpp54
-rw-r--r--examples/opengl/textures/textures.pro13
-rw-r--r--examples/opengl/textures/textures.qrc10
-rw-r--r--examples/opengl/textures/window.cpp89
-rw-r--r--examples/opengl/textures/window.h67
94 files changed, 8175 insertions, 0 deletions
diff --git a/examples/opengl/2dpainting/2dpainting.pro b/examples/opengl/2dpainting/2dpainting.pro
new file mode 100644
index 0000000000..c45b764e12
--- /dev/null
+++ b/examples/opengl/2dpainting/2dpainting.pro
@@ -0,0 +1,17 @@
+QT += opengl
+
+HEADERS = glwidget.h \
+ helper.h \
+ widget.h \
+ window.h
+SOURCES = glwidget.cpp \
+ helper.cpp \
+ main.cpp \
+ widget.cpp \
+ window.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/2dpainting
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS 2dpainting.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/2dpainting
+INSTALLS += target sources
diff --git a/examples/opengl/2dpainting/glwidget.cpp b/examples/opengl/2dpainting/glwidget.cpp
new file mode 100644
index 0000000000..d5f63d2f17
--- /dev/null
+++ b/examples/opengl/2dpainting/glwidget.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "glwidget.h"
+#include "helper.h"
+
+//! [0]
+GLWidget::GLWidget(Helper *helper, QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent), helper(helper)
+{
+ elapsed = 0;
+ setFixedSize(200, 200);
+ setAutoFillBackground(false);
+}
+//! [0]
+
+//! [1]
+void GLWidget::animate()
+{
+ elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
+ repaint();
+}
+//! [1]
+
+//! [2]
+void GLWidget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter;
+ painter.begin(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ helper->paint(&painter, event, elapsed);
+ painter.end();
+}
+//! [2]
diff --git a/examples/opengl/2dpainting/glwidget.h b/examples/opengl/2dpainting/glwidget.h
new file mode 100644
index 0000000000..f3a9bd5cd7
--- /dev/null
+++ b/examples/opengl/2dpainting/glwidget.h
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+
+//! [0]
+class Helper;
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+class QWidget;
+QT_END_NAMESPACE
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(Helper *helper, QWidget *parent);
+
+public slots:
+ void animate();
+
+protected:
+ void paintEvent(QPaintEvent *event);
+
+private:
+ Helper *helper;
+ int elapsed;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/helper.cpp b/examples/opengl/2dpainting/helper.cpp
new file mode 100644
index 0000000000..8796d87b8e
--- /dev/null
+++ b/examples/opengl/2dpainting/helper.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "helper.h"
+
+//! [0]
+Helper::Helper()
+{
+ QLinearGradient gradient(QPointF(50, -20), QPointF(80, 20));
+ gradient.setColorAt(0.0, Qt::white);
+ gradient.setColorAt(1.0, QColor(0xa6, 0xce, 0x39));
+
+ background = QBrush(QColor(64, 32, 64));
+ circleBrush = QBrush(gradient);
+ circlePen = QPen(Qt::black);
+ circlePen.setWidth(1);
+ textPen = QPen(Qt::white);
+ textFont.setPixelSize(50);
+}
+//! [0]
+
+//! [1]
+void Helper::paint(QPainter *painter, QPaintEvent *event, int elapsed)
+{
+ painter->fillRect(event->rect(), background);
+ painter->translate(100, 100);
+//! [1]
+
+//! [2]
+ painter->save();
+ painter->setBrush(circleBrush);
+ painter->setPen(circlePen);
+ painter->rotate(elapsed * 0.030);
+
+ qreal r = elapsed/1000.0;
+ int n = 30;
+ for (int i = 0; i < n; ++i) {
+ painter->rotate(30);
+ qreal radius = 0 + 120.0*((i+r)/n);
+ qreal circleRadius = 1 + ((i+r)/n)*20;
+ painter->drawEllipse(QRectF(radius, -circleRadius,
+ circleRadius*2, circleRadius*2));
+ }
+ painter->restore();
+//! [2]
+
+//! [3]
+ painter->setPen(textPen);
+ painter->setFont(textFont);
+ painter->drawText(QRect(-50, -50, 100, 100), Qt::AlignCenter, "Qt");
+}
+//! [3]
diff --git a/examples/opengl/2dpainting/helper.h b/examples/opengl/2dpainting/helper.h
new file mode 100644
index 0000000000..1d63cc95e2
--- /dev/null
+++ b/examples/opengl/2dpainting/helper.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef HELPER_H
+#define HELPER_H
+
+#include <QBrush>
+#include <QFont>
+#include <QPen>
+
+QT_BEGIN_NAMESPACE
+class QPainter;
+class QPaintEvent;
+QT_END_NAMESPACE
+
+//! [0]
+class Helper
+{
+public:
+ Helper();
+
+public:
+ void paint(QPainter *painter, QPaintEvent *event, int elapsed);
+
+private:
+ QBrush background;
+ QBrush circleBrush;
+ QFont textFont;
+ QPen circlePen;
+ QPen textPen;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/main.cpp b/examples/opengl/2dpainting/main.cpp
new file mode 100644
index 0000000000..58c970581e
--- /dev/null
+++ b/examples/opengl/2dpainting/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/opengl/2dpainting/widget.cpp b/examples/opengl/2dpainting/widget.cpp
new file mode 100644
index 0000000000..89d46083ed
--- /dev/null
+++ b/examples/opengl/2dpainting/widget.cpp
@@ -0,0 +1,73 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "widget.h"
+#include "helper.h"
+
+
+//! [0]
+Widget::Widget(Helper *helper, QWidget *parent)
+ : QWidget(parent), helper(helper)
+{
+ elapsed = 0;
+ setFixedSize(200, 200);
+}
+//! [0]
+
+//! [1]
+void Widget::animate()
+{
+ elapsed = (elapsed + qobject_cast<QTimer*>(sender())->interval()) % 1000;
+ repaint();
+}
+//! [1]
+
+//! [2]
+void Widget::paintEvent(QPaintEvent *event)
+{
+ QPainter painter;
+ painter.begin(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ helper->paint(&painter, event, elapsed);
+ painter.end();
+}
+//! [2]
diff --git a/examples/opengl/2dpainting/widget.h b/examples/opengl/2dpainting/widget.h
new file mode 100644
index 0000000000..f88c676d5e
--- /dev/null
+++ b/examples/opengl/2dpainting/widget.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WIDGET_H
+#define WIDGET_H
+
+#include <QWidget>
+
+//! [0]
+class Helper;
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+QT_END_NAMESPACE
+
+class Widget : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Widget(Helper *helper, QWidget *parent);
+
+public slots:
+ void animate();
+
+protected:
+ void paintEvent(QPaintEvent *event);
+
+private:
+ Helper *helper;
+ int elapsed;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/2dpainting/window.cpp b/examples/opengl/2dpainting/window.cpp
new file mode 100644
index 0000000000..f55e90ea4f
--- /dev/null
+++ b/examples/opengl/2dpainting/window.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include "glwidget.h"
+#include "widget.h"
+#include "window.h"
+
+//! [0]
+Window::Window()
+ : QWidget()
+{
+ Widget *native = new Widget(&helper, this);
+ GLWidget *openGL = new GLWidget(&helper, this);
+ QLabel *nativeLabel = new QLabel(tr("Native"));
+ nativeLabel->setAlignment(Qt::AlignHCenter);
+ QLabel *openGLLabel = new QLabel(tr("OpenGL"));
+ openGLLabel->setAlignment(Qt::AlignHCenter);
+
+ QGridLayout *layout = new QGridLayout;
+ layout->addWidget(native, 0, 0);
+ layout->addWidget(openGL, 0, 1);
+ layout->addWidget(nativeLabel, 1, 0);
+ layout->addWidget(openGLLabel, 1, 1);
+ setLayout(layout);
+
+ QTimer *timer = new QTimer(this);
+ connect(timer, SIGNAL(timeout()), native, SLOT(animate()));
+ connect(timer, SIGNAL(timeout()), openGL, SLOT(animate()));
+ timer->start(50);
+
+ setWindowTitle(tr("2D Painting on Native and OpenGL Widgets"));
+}
+//! [0]
diff --git a/examples/opengl/2dpainting/window.h b/examples/opengl/2dpainting/window.h
new file mode 100644
index 0000000000..84a44403d9
--- /dev/null
+++ b/examples/opengl/2dpainting/window.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+#include "helper.h"
+
+QT_BEGIN_NAMESPACE
+class QLabel;
+class QWidget;
+QT_END_NAMESPACE
+
+//! [0]
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+
+private:
+ Helper helper;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/README b/examples/opengl/README
new file mode 100644
index 0000000000..69bd134246
--- /dev/null
+++ b/examples/opengl/README
@@ -0,0 +1,41 @@
+Qt provides support for integration with OpenGL implementations on all
+platforms, giving developers the opportunity to display hardware accelerated
+3D graphics alongside a more conventional user interface.
+
+These examples demonstrate the basic techniques used to take advantage of
+OpenGL in Qt applications.
+
+
+The example launcher provided with Qt can be used to explore each of the
+examples in this directory.
+
+Documentation for these examples can be found via the Tutorial and Examples
+link in the main Qt documentation.
+
+
+Finding the Qt Examples and Demos launcher
+==========================================
+
+On Windows:
+
+The launcher can be accessed via the Windows Start menu. Select the menu
+entry entitled "Qt Examples and Demos" entry in the submenu containing
+the Qt tools.
+
+On Mac OS X:
+
+For the binary distribution, the qtdemo executable is installed in the
+/Developer/Applications/Qt directory. For the source distribution, it is
+installed alongside the other Qt tools on the path specified when Qt is
+configured.
+
+On Unix/Linux:
+
+The qtdemo executable is installed alongside the other Qt tools on the path
+specified when Qt is configured.
+
+On all platforms:
+
+The source code for the launcher can be found in the demos/qtdemo directory
+in the Qt package. This example is built at the same time as the Qt libraries,
+tools, examples, and demonstrations.
diff --git a/examples/opengl/framebufferobject/bubbles.svg b/examples/opengl/framebufferobject/bubbles.svg
new file mode 100644
index 0000000000..65867da2d8
--- /dev/null
+++ b/examples/opengl/framebufferobject/bubbles.svg
@@ -0,0 +1,215 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg width="20cm" height="15cm" viewBox="0 0 800 600"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink/"
+ baseProfile="tiny" version="1.2">
+ <title>Spheres</title>
+ <desc>Semi-transparent bubbles on a colored background.</desc>
+ <defs>
+ <!-- Create radial gradients for each bubble. -->
+ <radialGradient id="blueBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#cdcdff" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#cdaacd" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="redBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#ffcdcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#bbbb99" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="greenBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#cdffcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#99aaaa" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="yellowBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#ffffcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#bbbbaa" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="background" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="400" fx="250" fy="250">
+ <stop offset="0%" stop-color="#ffffee" />
+ <stop offset="100%" stop-color="#ccccaa" />
+ </radialGradient>
+ <linearGradient id="surface" gradientUnits="userSpaceOnUse"
+ x1="-100" y1="200" x2="400" y2="200">
+ <stop offset="0%" stop-color="#ffffcc" />
+ <stop offset="100%" stop-color="#bbbb88" />
+ </linearGradient>
+
+ <!-- Create radial gradients for each circle to make them look like
+ spheres. -->
+ <radialGradient id="blueSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="blue" />
+ <stop offset="100%" stop-color="#222244" />
+ </radialGradient>
+ <radialGradient id="redSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="red" />
+ <stop offset="100%" stop-color="#442222" />
+ </radialGradient>
+ <radialGradient id="greenSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="green" />
+ <stop offset="100%" stop-color="#113311" />
+ </radialGradient>
+ <radialGradient id="yellowSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="yellow" />
+ <stop offset="100%" stop-color="#444422" />
+ </radialGradient>
+ <radialGradient id="shadowGrad" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="50">
+ <stop offset="0%" stop-color="black" stop-opacity="1.0" />
+ <stop offset="100%" stop-color="white" stop-opacity="0.0" />
+ </radialGradient>
+
+ <!-- Define a shadow for each sphere. -->
+ <circle id="shadow" fill="url(#shadowGrad)" cx="0" cy="0" r="100" />
+ <g id="bubble">
+ <circle fill="black" cx="0" cy="0" r="50" />
+ <circle fill="#a6ce39" cx="0" cy="0" r="33" />
+ <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10
+ L -11,22 L -1,12 Z" />
+ <circle cx="0" cy="0" r="100" />
+ </g>
+ </defs>
+ <g>
+ <rect fill="url(#background)" x="0" y="0" width="800" height="600" />
+ </g>
+
+ <g transform="translate(200,700)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="10s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(315,700)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="7s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(80,700)">
+ <g transform="scale(0.65,0.65)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="5s" dur="9s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(255,700)">
+ <g transform="scale(0.3,0.3)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="2s" dur="6s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(565,700)">
+ <g transform="scale(0.4,0.4)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="4s" dur="8s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(715,700)">
+ <g transform="scale(0.6,0.6)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="4s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(645,700)">
+ <g transform="scale(0.375,0.375)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="0s" dur="11s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(555,700)">
+ <g transform="scale(0.9,0.9)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="7.5s" fill="freeze" repeatCount="indefinite" />
+ </g>
+
+ <g transform="translate(360,700)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="6s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(215,700)">
+ <g transform="scale(0.45,0.45)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="5.5s" dur="7s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(420,700)">
+ <g transform="scale(0.75,0.75)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="9s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(815,700)">
+ <g transform="scale(0.6,0.6)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="2s" dur="9.5s" fill="freeze" repeatCount="indefinite" />
+ </g>
+
+ <g transform="translate(225,375)" >
+ <g transform="scale(1.0,0.5)" >
+ <path d="M 0 0 L 350 0 L 450 450 L -100 450 z"
+ fill="url(#surface)" stroke="none" />
+ </g>
+ </g>
+ <g transform="translate(200,0)" >
+ <g transform="translate(200,490) scale(2.0,1.0) rotate(45)" >
+ <rect fill="#a6ce39" x="-69" y="-69" width="138" height="138" />
+ <circle fill="black" cx="0" cy="0" r="50" />
+ <circle fill="#a6ce39" cx="0" cy="0" r="33" />
+ <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10
+ L -11,22 L -1,12 Z" />
+ <animateTransform attributeName="transform" type="rotate" values="0; 360"
+ begin="0s" dur="10s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(200,375)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#blueSphere)" cx="0" cy="0" r="100" />
+ </g>
+ <g transform="translate(315,440)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#redSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ <g transform="translate(80,475)">
+ <g transform="scale(0.65,0.65)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#greenSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ <g transform="translate(255,525)">
+ <g transform="scale(0.3,0.3)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#yellowSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ </g>
+</svg>
diff --git a/examples/opengl/framebufferobject/designer.png b/examples/opengl/framebufferobject/designer.png
new file mode 100644
index 0000000000..4f32d57496
--- /dev/null
+++ b/examples/opengl/framebufferobject/designer.png
Binary files differ
diff --git a/examples/opengl/framebufferobject/framebufferobject.pro b/examples/opengl/framebufferobject/framebufferobject.pro
new file mode 100644
index 0000000000..4bc667c6d0
--- /dev/null
+++ b/examples/opengl/framebufferobject/framebufferobject.pro
@@ -0,0 +1,22 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Fri May 12 17:15:46 2006
+######################################################################
+
+TEMPLATE = app
+TARGET =
+DEPENDPATH += .
+INCLUDEPATH += .
+
+QT += opengl svg
+
+# Input
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+RESOURCES += framebufferobject.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/framebufferobject
+sources.files = $$SOURCES $$HEADERS $$RESOURCES *.pro *.png *.svg
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/framebufferobject
+INSTALLS += target sources
+
diff --git a/examples/opengl/framebufferobject/framebufferobject.qrc b/examples/opengl/framebufferobject/framebufferobject.qrc
new file mode 100644
index 0000000000..986f1ca385
--- /dev/null
+++ b/examples/opengl/framebufferobject/framebufferobject.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/res">
+ <file>bubbles.svg</file>
+ <file>designer.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/framebufferobject/glwidget.cpp b/examples/opengl/framebufferobject/glwidget.cpp
new file mode 100644
index 0000000000..d3591d60c9
--- /dev/null
+++ b/examples/opengl/framebufferobject/glwidget.cpp
@@ -0,0 +1,309 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QImage>
+#include "glwidget.h"
+
+#include <math.h>
+
+#ifndef GL_MULTISAMPLE
+#define GL_MULTISAMPLE 0x809D
+#endif
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers|QGL::AlphaChannel), parent)
+{
+ setWindowTitle(tr("OpenGL framebuffer objects"));
+ makeCurrent();
+ fbo = new QGLFramebufferObject(1024, 1024);
+ rot_x = rot_y = rot_z = 0.0f;
+ scale = 0.1f;
+ anim = new QTimeLine(750, this);
+ anim->setUpdateInterval(20);
+ connect(anim, SIGNAL(valueChanged(qreal)), SLOT(animate(qreal)));
+ connect(anim, SIGNAL(finished()), SLOT(animFinished()));
+
+ svg_renderer = new QSvgRenderer(QLatin1String(":/res/bubbles.svg"), this);
+ connect(svg_renderer, SIGNAL(repaintNeeded()), this, SLOT(draw()));
+
+ logo = QImage(":/res/designer.png");
+ logo = logo.convertToFormat(QImage::Format_ARGB32);
+
+ tile_list = glGenLists(1);
+ glNewList(tile_list, GL_COMPILE);
+ glBegin(GL_QUADS);
+ {
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+ }
+ glEnd();
+ glEndList();
+
+ wave = new GLfloat[logo.width()*logo.height()];
+ memset(wave, 0, logo.width()*logo.height());
+ startTimer(30); // wave timer
+}
+
+GLWidget::~GLWidget()
+{
+ delete[] wave;
+ glDeleteLists(tile_list, 1);
+ delete fbo;
+}
+
+void GLWidget::paintEvent(QPaintEvent *)
+{
+ draw();
+}
+
+void GLWidget::draw()
+{
+ QPainter p(this); // used for text overlay
+
+ // save the GL state set for QPainter
+ saveGLState();
+
+ // render the 'bubbles.svg' file into our framebuffer object
+ QPainter fbo_painter(fbo);
+ svg_renderer->render(&fbo_painter);
+ fbo_painter.end();
+
+ // draw into the GL widget
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1, 1, -1, 1, 10, 100);
+ glTranslatef(0.0f, 0.0f, -15.0f);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glViewport(0, 0, width(), height());
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+ glBindTexture(GL_TEXTURE_2D, fbo->texture());
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_MULTISAMPLE);
+ glEnable(GL_CULL_FACE);
+
+ // draw background
+ glPushMatrix();
+ glScalef(1.7f, 1.7f, 1.7f);
+ glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
+ glCallList(tile_list);
+ glPopMatrix();
+
+ const int w = logo.width();
+ const int h = logo.height();
+
+ glRotatef(rot_x, 1.0f, 0.0f, 0.0f);
+ glRotatef(rot_y, 0.0f, 1.0f, 0.0f);
+ glRotatef(rot_z, 0.0f, 0.0f, 1.0f);
+ glScalef(scale/w, scale/w, scale/w);
+
+ glDepthFunc(GL_LESS);
+ glEnable(GL_DEPTH_TEST);
+ // draw the Qt icon
+ glTranslatef(-w+1, -h+1, 0.0f);
+ for (int y=h-1; y>=0; --y) {
+ uint *p = (uint*) logo.scanLine(y);
+ uint *end = p + w;
+ int x = 0;
+ while (p < end) {
+ glColor4ub(qRed(*p), qGreen(*p), qBlue(*p), uchar(qAlpha(*p)*.9));
+ glTranslatef(0.0f, 0.0f, wave[y*w+x]);
+ if (qAlpha(*p) > 128)
+ glCallList(tile_list);
+ glTranslatef(0.0f, 0.0f, -wave[y*w+x]);
+ glTranslatef(2.0f, 0.0f, 0.0f);
+ ++x;
+ ++p;
+ }
+ glTranslatef(-w*2.0f, 2.0f, 0.0f);
+ }
+
+ // restore the GL state that QPainter expects
+ restoreGLState();
+
+ // draw the overlayed text using QPainter
+ p.setPen(QColor(197, 197, 197, 157));
+ p.setBrush(QColor(197, 197, 197, 127));
+ p.drawRect(QRect(0, 0, width(), 50));
+ p.setPen(Qt::black);
+ p.setBrush(Qt::NoBrush);
+ const QString str1(tr("A simple OpenGL framebuffer object example."));
+ const QString str2(tr("Use the mouse wheel to zoom, press buttons and move mouse to rotate, double-click to flip."));
+ QFontMetrics fm(p.font());
+ p.drawText(width()/2 - fm.width(str1)/2, 20, str1);
+ p.drawText(width()/2 - fm.width(str2)/2, 20 + fm.lineSpacing(), str2);
+}
+
+void GLWidget::mousePressEvent(QMouseEvent *e)
+{
+ anchor = e->pos();
+}
+
+void GLWidget::mouseMoveEvent(QMouseEvent *e)
+{
+ QPoint diff = e->pos() - anchor;
+ if (e->buttons() & Qt::LeftButton) {
+ rot_x += diff.y()/5.0f;
+ rot_y += diff.x()/5.0f;
+ } else if (e->buttons() & Qt::RightButton) {
+ rot_z += diff.x()/5.0f;
+ }
+
+ anchor = e->pos();
+ draw();
+}
+
+void GLWidget::wheelEvent(QWheelEvent *e)
+{
+ e->delta() > 0 ? scale += scale*0.1f : scale -= scale*0.1f;
+ draw();
+}
+
+void GLWidget::mouseDoubleClickEvent(QMouseEvent *)
+{
+ anim->start();
+}
+
+void GLWidget::animate(qreal val)
+{
+ rot_y = val * 180;
+ draw();
+}
+
+void GLWidget::animFinished()
+{
+ if (anim->direction() == QTimeLine::Forward)
+ anim->setDirection(QTimeLine::Backward);
+ else
+ anim->setDirection(QTimeLine::Forward);
+}
+
+void GLWidget::saveGLState()
+{
+ glPushAttrib(GL_ALL_ATTRIB_BITS);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+}
+
+void GLWidget::restoreGLState()
+{
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+ glPopAttrib();
+}
+
+#define PI 3.14159
+
+void GLWidget::timerEvent(QTimerEvent *)
+{
+ if (QApplication::mouseButtons() != 0)
+ return;
+
+ static bool scale_in = true;
+
+ if (scale_in && scale > 35.0f)
+ scale_in = false;
+ else if (!scale_in && scale < .5f)
+ scale_in = true;
+
+ scale = scale_in ? scale + scale*0.01f : scale-scale*0.01f;
+ rot_z += 0.3f;
+ rot_x += 0.1f;
+
+ int dx, dy; // disturbance point
+ float s, v, W, t;
+ int i, j;
+ static float wt[128][128];
+ const int width = logo.width();
+ const int AMP = 5;
+
+ dx = dy = width >> 1;
+
+ W = .3f;
+ v = -4; // wave speed
+
+ for (i = 0; i < width; ++i) {
+ for ( j = 0; j < width; ++j) {
+ s = sqrt((double) ((j - dx) * (j - dx) + (i - dy) * (i - dy)));
+ wt[i][j] += 0.1f;
+ t = s / v;
+ if (s != 0)
+ wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t)) / (0.2*(s + 2));
+ else
+ wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t));
+ }
+ }
+}
diff --git a/examples/opengl/framebufferobject/glwidget.h b/examples/opengl/framebufferobject/glwidget.h
new file mode 100644
index 0000000000..b64cfa87f2
--- /dev/null
+++ b/examples/opengl/framebufferobject/glwidget.h
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtOpenGL>
+#include <QImage>
+#include <QTimeLine>
+#include <QSvgRenderer>
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent);
+ ~GLWidget();
+
+ void saveGLState();
+ void restoreGLState();
+
+ void paintEvent(QPaintEvent *);
+ void mousePressEvent(QMouseEvent *);
+ void mouseDoubleClickEvent(QMouseEvent *);
+ void mouseMoveEvent(QMouseEvent *);
+ void timerEvent(QTimerEvent *);
+ void wheelEvent(QWheelEvent *);
+
+public slots:
+ void animate(qreal);
+ void animFinished();
+ void draw();
+
+private:
+ QPoint anchor;
+ float scale;
+ float rot_x, rot_y, rot_z;
+ GLuint tile_list;
+ GLfloat *wave;
+
+ QImage logo;
+ QTimeLine *anim;
+ QSvgRenderer *svg_renderer;
+ QGLFramebufferObject *fbo;
+};
+
diff --git a/examples/opengl/framebufferobject/main.cpp b/examples/opengl/framebufferobject/main.cpp
new file mode 100644
index 0000000000..f9af3f906b
--- /dev/null
+++ b/examples/opengl/framebufferobject/main.cpp
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QApplication>
+#include <QtGui/QMessageBox>
+#include "glwidget.h"
+
+int main(int argc, char **argv)
+{
+ Q_INIT_RESOURCE(framebufferobject);
+
+ QApplication a(argc, argv);
+ if (!QGLFormat::hasOpenGL() || !QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
+ QMessageBox::information(0, "OpenGL framebuffer objects",
+ "This system does not support OpenGL/framebuffer objects.");
+ return -1;
+ }
+
+ GLWidget widget(0);
+ widget.resize(640, 480);
+ widget.show();
+ return a.exec();
+}
+
diff --git a/examples/opengl/framebufferobject2/cubelogo.png b/examples/opengl/framebufferobject2/cubelogo.png
new file mode 100644
index 0000000000..3ae0f9ba3f
--- /dev/null
+++ b/examples/opengl/framebufferobject2/cubelogo.png
Binary files differ
diff --git a/examples/opengl/framebufferobject2/framebufferobject2.pro b/examples/opengl/framebufferobject2/framebufferobject2.pro
new file mode 100644
index 0000000000..9f1644c7a1
--- /dev/null
+++ b/examples/opengl/framebufferobject2/framebufferobject2.pro
@@ -0,0 +1,11 @@
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+RESOURCES += framebufferobject2.qrc
+
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/framebufferobject2
+sources.files = $$SOURCES $$HEADERS $$RESOURCES framebufferobject2.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/framebufferobject2
+INSTALLS += target sources
diff --git a/examples/opengl/framebufferobject2/framebufferobject2.qrc b/examples/opengl/framebufferobject2/framebufferobject2.qrc
new file mode 100644
index 0000000000..9fc1a56a1a
--- /dev/null
+++ b/examples/opengl/framebufferobject2/framebufferobject2.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/res">
+ <file>cubelogo.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/framebufferobject2/glwidget.cpp b/examples/opengl/framebufferobject2/glwidget.cpp
new file mode 100644
index 0000000000..24bc2ef240
--- /dev/null
+++ b/examples/opengl/framebufferobject2/glwidget.cpp
@@ -0,0 +1,249 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <QtGui/QImage>
+
+#include <math.h>
+
+static GLint cubeArray[][3] = {
+ {0, 0, 0}, {0, 1, 0}, {1, 1, 0}, {1, 0, 0},
+ {0, 0, 1}, {1, 0, 1}, {1, 1, 1}, {0, 1, 1},
+ {0, 0, 0}, {1, 0, 0}, {1, 0, 1}, {0, 0, 1},
+ {0, 1, 0}, {0, 1, 1}, {1, 1, 1}, {1, 1, 0},
+ {0, 1, 0}, {0, 0, 0}, {0, 0, 1}, {0, 1, 1},
+ {1, 0, 0}, {1, 1, 0}, {1, 1, 1}, {1, 0, 1}
+};
+
+static GLint cubeTextureArray[][2] = {
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {0, 0}, {0, 1}, {1, 1}, {1, 0},
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {1, 0}, {0, 0}, {0, 1}, {1, 1},
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {1, 0}, {0, 0}, {0, 1}, {1, 1}
+};
+
+static GLint faceArray[][2] = {
+ {1, -1}, {1, 1}, {-1, 1}, {-1, -1}
+};
+
+static GLubyte colorArray[][4] = {
+ {102, 176, 54, 255},
+ {81, 141, 41, 255},
+ {62, 108, 32, 255},
+ {45, 79, 23, 255}
+};
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+ // create the framebuffer object - make sure to have a current
+ // context before creating it
+ makeCurrent();
+ fbo = new QGLFramebufferObject(512, 512);
+ timerId = startTimer(20);
+ setWindowTitle(tr("OpenGL framebuffer objects 2"));
+}
+
+GLWidget::~GLWidget()
+{
+ glDeleteLists(pbufferList, 1);
+ delete fbo;
+}
+
+void GLWidget::initializeGL()
+{
+ glMatrixMode(GL_MODELVIEW);
+
+ glEnable(GL_CULL_FACE);
+
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+ glTexCoordPointer(2, GL_INT, 0, cubeTextureArray);
+ glColorPointer(4, GL_UNSIGNED_BYTE, 0, colorArray);
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_DEPTH_TEST);
+
+ glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+ pbufferList = glGenLists(1);
+ glNewList(pbufferList, GL_COMPILE);
+ {
+ glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+
+ // draw cube background
+ glPushMatrix();
+ glLoadIdentity();
+ glTranslatef(0.5f, 0.5f, -2.0f);
+ glDisable(GL_TEXTURE_2D);
+ glEnableClientState(GL_COLOR_ARRAY);
+ glVertexPointer(2, GL_INT, 0, faceArray);
+ glDrawArrays(GL_QUADS, 0, 4);
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+ glDisableClientState(GL_COLOR_ARRAY);
+ glEnable(GL_TEXTURE_2D);
+ glPopMatrix();
+
+ // draw cube
+ glTranslatef(0.5f, 0.5f, 0.5f);
+ glRotatef(3.0f, 1.0f, 1.0f, 1.0f);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+ glColor4f(0.9f, 0.9f, 0.9f, 1.0f);
+ glDrawArrays(GL_QUADS, 0, 24);
+
+ glPushMatrix(); // this state is popped back in the paintGL() function
+ }
+ glEndList();
+
+ for (int i = 0; i < 3; ++i) {
+ yOffs[i] = 0.0f;
+ xInc[i] = 0.005f;
+ rot[i] = 0.0f;
+ }
+ xOffs[0]= 0.0f;
+ xOffs[1]= 0.5f;
+ xOffs[2]= 1.0f;
+
+ cubeTexture = bindTexture(QImage(":res/cubelogo.png"));
+
+ glPushMatrix(); // push to avoid stack underflow in the first paintGL() call
+}
+
+void GLWidget::resizeGL(int w, int h)
+{
+ glViewport(0, 0, w, h);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ float aspect = w/(float)(h ? h : 1);
+ glFrustum(-aspect, aspect, -1, 1, 10, 100);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+ glTranslatef(0.0f, 0.0f, -15.0f);
+}
+
+void GLWidget::paintGL()
+{
+ glPopMatrix(); // pop the matrix pushed in the pbuffer list
+
+ // push the projection matrix and the entire GL state before
+ // doing any rendering into our framebuffer object
+ glPushAttrib(GL_ALL_ATTRIB_BITS);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+
+ glViewport(0, 0, fbo->size().width(), fbo->size().height());
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1, 1, -1, 1, -99, 99);
+ glTranslatef(-0.5f, -0.5f, 0.0f);
+ glMatrixMode(GL_MODELVIEW);
+
+ // render to the framebuffer object
+ fbo->bind();
+ glBindTexture(GL_TEXTURE_2D, cubeTexture);
+ glCallList(pbufferList);
+ fbo->release();
+
+ // pop the projection matrix and GL state back for rendering
+ // to the actual widget
+ glPopAttrib();
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+
+ glBindTexture(GL_TEXTURE_2D, fbo->texture());
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ // draw the background
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+
+ glVertexPointer(2, GL_INT, 0, faceArray);
+ glTranslatef(-1.2f, -0.8f, 0.0f);
+ glScalef(0.2f, 0.2f, 0.2f);
+ for (int y = 0; y < 5; ++y) {
+ for (int x = 0; x < 5; ++x) {
+ glTranslatef(2.0f, 0, 0);
+ glColor4f(0.8, 0.8, 0.8, 1.0);
+ glDrawArrays(GL_QUADS, 0, 4);
+ }
+ glTranslatef(-10.0f, 2.0f, 0);
+ }
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+
+ // draw the bouncing cubes
+ drawCube(0, 0.0f, 1.5f, 2.5f, 1.5f);
+ drawCube(1, 1.0f, 2.0f, 2.5f, 2.0f);
+ drawCube(2, 2.0f, 3.5f, 2.5f, 2.5f);
+ glPopMatrix();
+}
+
+void GLWidget::drawCube(int i, GLfloat z, GLfloat rotation, GLfloat jmp, GLfloat amp)
+{
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(xOffs[i], yOffs[i], z);
+ glTranslatef(0.5f, 0.5f, 0.5f);
+ GLfloat scale = 0.75 + i*(0.25f/2);
+ glScalef(scale, scale, scale);
+ glRotatef(rot[i], 1.0f, 1.0f, 1.0f);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+
+ glColor4f(1.0f, 1.0f, 1.0f, 0.8f);
+ glDrawArrays(GL_QUADS, 0, 24);
+
+ if (xOffs[i] > 1.0f || xOffs[i] < -1.0f) {
+ xInc[i] = -xInc[i];
+ xOffs[i] = xOffs[i] > 1.0f ? 1.0f : -1.0f;
+ }
+ xOffs[i] += xInc[i];
+ yOffs[i] = qAbs(cos((-3.141592f * jmp) * xOffs[i]) * amp) - 1;
+ rot[i] += rotation;
+}
diff --git a/examples/opengl/framebufferobject2/glwidget.h b/examples/opengl/framebufferobject2/glwidget.h
new file mode 100644
index 0000000000..e200ac22bc
--- /dev/null
+++ b/examples/opengl/framebufferobject2/glwidget.h
@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtOpenGL>
+
+class GLWidget : public QGLWidget
+{
+public:
+ GLWidget(QWidget *parent);
+ ~GLWidget();
+ void initializeGL();
+ void resizeGL(int w, int h);
+ void paintGL();
+ void timerEvent(QTimerEvent *) { update(); }
+ void mousePressEvent(QMouseEvent *) { killTimer(timerId); }
+ void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); }
+
+ void drawCube(int i, GLfloat z, GLfloat ri, GLfloat jmp, GLfloat amp);
+
+private:
+ GLfloat rot[3], xOffs[3], yOffs[3], xInc[3];
+ GLuint pbufferList;
+ GLuint cubeTexture;
+ int timerId;
+
+ QGLFramebufferObject *fbo;
+};
+
diff --git a/examples/opengl/framebufferobject2/main.cpp b/examples/opengl/framebufferobject2/main.cpp
new file mode 100644
index 0000000000..912f4ec66a
--- /dev/null
+++ b/examples/opengl/framebufferobject2/main.cpp
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QApplication>
+#include <QtGui/QMessageBox>
+#include "glwidget.h"
+
+int main(int argc, char **argv)
+{
+ Q_INIT_RESOURCE(framebufferobject2);
+
+ QApplication a(argc, argv);
+ if (!QGLFormat::hasOpenGL() || !QGLFramebufferObject::hasOpenGLFramebufferObjects()) {
+ QMessageBox::information(0, "OpenGL framebuffer objects 2",
+ "This system does not support OpenGL/framebuffer objects.");
+ return -1;
+ }
+
+ GLWidget widget(0);
+ widget.resize(640, 480);
+ widget.show();
+ return a.exec();
+}
+
diff --git a/examples/opengl/grabber/glwidget.cpp b/examples/opengl/grabber/glwidget.cpp
new file mode 100644
index 0000000000..71550ac540
--- /dev/null
+++ b/examples/opengl/grabber/glwidget.cpp
@@ -0,0 +1,284 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtOpenGL>
+
+#include <math.h>
+
+#include "glwidget.h"
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(parent)
+{
+ gear1 = 0;
+ gear2 = 0;
+ gear3 = 0;
+ xRot = 0;
+ yRot = 0;
+ zRot = 0;
+ gear1Rot = 0;
+
+ QTimer *timer = new QTimer(this);
+ connect(timer, SIGNAL(timeout()), this, SLOT(advanceGears()));
+ timer->start(20);
+}
+
+GLWidget::~GLWidget()
+{
+ makeCurrent();
+ glDeleteLists(gear1, 1);
+ glDeleteLists(gear2, 1);
+ glDeleteLists(gear3, 1);
+}
+
+void GLWidget::setXRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != xRot) {
+ xRot = angle;
+ emit xRotationChanged(angle);
+ updateGL();
+ }
+}
+
+void GLWidget::setYRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != yRot) {
+ yRot = angle;
+ emit yRotationChanged(angle);
+ updateGL();
+ }
+}
+
+void GLWidget::setZRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != zRot) {
+ zRot = angle;
+ emit zRotationChanged(angle);
+ updateGL();
+ }
+}
+
+void GLWidget::initializeGL()
+{
+ static const GLfloat lightPos[4] = { 5.0f, 5.0f, 10.0f, 1.0f };
+ static const GLfloat reflectance1[4] = { 0.8f, 0.1f, 0.0f, 1.0f };
+ static const GLfloat reflectance2[4] = { 0.0f, 0.8f, 0.2f, 1.0f };
+ static const GLfloat reflectance3[4] = { 0.2f, 0.2f, 1.0f, 1.0f };
+
+ glLightfv(GL_LIGHT0, GL_POSITION, lightPos);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+
+ gear1 = makeGear(reflectance1, 1.0, 4.0, 1.0, 0.7, 20);
+ gear2 = makeGear(reflectance2, 0.5, 2.0, 2.0, 0.7, 10);
+ gear3 = makeGear(reflectance3, 1.3, 2.0, 0.5, 0.7, 10);
+
+ glEnable(GL_NORMALIZE);
+ glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
+}
+
+void GLWidget::paintGL()
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glPushMatrix();
+ glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
+ glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
+ glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
+
+ drawGear(gear1, -3.0, -2.0, 0.0, gear1Rot / 16.0);
+ drawGear(gear2, +3.1, -2.0, 0.0, -2.0 * (gear1Rot / 16.0) - 9.0);
+
+ glRotated(+90.0, 1.0, 0.0, 0.0);
+ drawGear(gear3, -3.1, -1.8, -2.2, +2.0 * (gear1Rot / 16.0) - 2.0);
+
+ glPopMatrix();
+}
+
+void GLWidget::resizeGL(int width, int height)
+{
+ int side = qMin(width, height);
+ glViewport((width - side) / 2, (height - side) / 2, side, side);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, +1.0, -1.0, 1.0, 5.0, 60.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslated(0.0, 0.0, -40.0);
+}
+
+void GLWidget::mousePressEvent(QMouseEvent *event)
+{
+ lastPos = event->pos();
+}
+
+void GLWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ int dx = event->x() - lastPos.x();
+ int dy = event->y() - lastPos.y();
+
+ if (event->buttons() & Qt::LeftButton) {
+ setXRotation(xRot + 8 * dy);
+ setYRotation(yRot + 8 * dx);
+ } else if (event->buttons() & Qt::RightButton) {
+ setXRotation(xRot + 8 * dy);
+ setZRotation(zRot + 8 * dx);
+ }
+ lastPos = event->pos();
+}
+
+void GLWidget::advanceGears()
+{
+ gear1Rot += 2 * 16;
+ updateGL();
+}
+
+GLuint GLWidget::makeGear(const GLfloat *reflectance, GLdouble innerRadius,
+ GLdouble outerRadius, GLdouble thickness,
+ GLdouble toothSize, GLint toothCount)
+{
+ const double Pi = 3.14159265358979323846;
+
+ GLuint list = glGenLists(1);
+ glNewList(list, GL_COMPILE);
+ glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, reflectance);
+
+ GLdouble r0 = innerRadius;
+ GLdouble r1 = outerRadius - toothSize / 2.0;
+ GLdouble r2 = outerRadius + toothSize / 2.0;
+ GLdouble delta = (2.0 * Pi / toothCount) / 4.0;
+ GLdouble z = thickness / 2.0;
+ int i, j;
+
+ glShadeModel(GL_FLAT);
+
+ for (i = 0; i < 2; ++i) {
+ GLdouble sign = (i == 0) ? +1.0 : -1.0;
+
+ glNormal3d(0.0, 0.0, sign);
+
+ glBegin(GL_QUAD_STRIP);
+ for (j = 0; j <= toothCount; ++j) {
+ GLdouble angle = 2.0 * Pi * j / toothCount;
+ glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z);
+ glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z);
+ glVertex3d(r0 * cos(angle), r0 * sin(angle), sign * z);
+ glVertex3d(r1 * cos(angle + 3 * delta), r1 * sin(angle + 3 * delta),
+ sign * z);
+ }
+ glEnd();
+
+ glBegin(GL_QUADS);
+ for (j = 0; j < toothCount; ++j) {
+ GLdouble angle = 2.0 * Pi * j / toothCount;
+ glVertex3d(r1 * cos(angle), r1 * sin(angle), sign * z);
+ glVertex3d(r2 * cos(angle + delta), r2 * sin(angle + delta),
+ sign * z);
+ glVertex3d(r2 * cos(angle + 2 * delta), r2 * sin(angle + 2 * delta),
+ sign * z);
+ glVertex3d(r1 * cos(angle + 3 * delta), r1 * sin(angle + 3 * delta),
+ sign * z);
+ }
+ glEnd();
+ }
+
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i < toothCount; ++i) {
+ for (j = 0; j < 2; ++j) {
+ GLdouble angle = 2.0 * Pi * (i + (j / 2.0)) / toothCount;
+ GLdouble s1 = r1;
+ GLdouble s2 = r2;
+ if (j == 1)
+ qSwap(s1, s2);
+
+ glNormal3d(cos(angle), sin(angle), 0.0);
+ glVertex3d(s1 * cos(angle), s1 * sin(angle), +z);
+ glVertex3d(s1 * cos(angle), s1 * sin(angle), -z);
+
+ glNormal3d(s2 * sin(angle + delta) - s1 * sin(angle),
+ s1 * cos(angle) - s2 * cos(angle + delta), 0.0);
+ glVertex3d(s2 * cos(angle + delta), s2 * sin(angle + delta), +z);
+ glVertex3d(s2 * cos(angle + delta), s2 * sin(angle + delta), -z);
+ }
+ }
+ glVertex3d(r1, 0.0, +z);
+ glVertex3d(r1, 0.0, -z);
+ glEnd();
+
+ glShadeModel(GL_SMOOTH);
+
+ glBegin(GL_QUAD_STRIP);
+ for (i = 0; i <= toothCount; ++i) {
+ GLdouble angle = i * 2.0 * Pi / toothCount;
+ glNormal3d(-cos(angle), -sin(angle), 0.0);
+ glVertex3d(r0 * cos(angle), r0 * sin(angle), +z);
+ glVertex3d(r0 * cos(angle), r0 * sin(angle), -z);
+ }
+ glEnd();
+
+ glEndList();
+
+ return list;
+}
+
+void GLWidget::drawGear(GLuint gear, GLdouble dx, GLdouble dy, GLdouble dz,
+ GLdouble angle)
+{
+ glPushMatrix();
+ glTranslated(dx, dy, dz);
+ glRotated(angle, 0.0, 0.0, 1.0);
+ glCallList(gear);
+ glPopMatrix();
+}
+
+void GLWidget::normalizeAngle(int *angle)
+{
+ while (*angle < 0)
+ *angle += 360 * 16;
+ while (*angle > 360 * 16)
+ *angle -= 360 * 16;
+}
diff --git a/examples/opengl/grabber/glwidget.h b/examples/opengl/grabber/glwidget.h
new file mode 100644
index 0000000000..4e66b1ff9a
--- /dev/null
+++ b/examples/opengl/grabber/glwidget.h
@@ -0,0 +1,98 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent = 0);
+ ~GLWidget();
+
+ int xRotation() const { return xRot; }
+ int yRotation() const { return yRot; }
+ int zRotation() const { return zRot; }
+
+public slots:
+ void setXRotation(int angle);
+ void setYRotation(int angle);
+ void setZRotation(int angle);
+
+signals:
+ void xRotationChanged(int angle);
+ void yRotationChanged(int angle);
+ void zRotationChanged(int angle);
+
+protected:
+ void initializeGL();
+ void paintGL();
+ void resizeGL(int width, int height);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+
+private slots:
+ void advanceGears();
+
+private:
+ GLuint makeGear(const GLfloat *reflectance, GLdouble innerRadius,
+ GLdouble outerRadius, GLdouble thickness,
+ GLdouble toothSize, GLint toothCount);
+ void drawGear(GLuint gear, GLdouble dx, GLdouble dy, GLdouble dz,
+ GLdouble angle);
+ void normalizeAngle(int *angle);
+
+ GLuint gear1;
+ GLuint gear2;
+ GLuint gear3;
+ int xRot;
+ int yRot;
+ int zRot;
+ int gear1Rot;
+
+ QPoint lastPos;
+};
+
+#endif
diff --git a/examples/opengl/grabber/grabber.pro b/examples/opengl/grabber/grabber.pro
new file mode 100644
index 0000000000..15eaf0250a
--- /dev/null
+++ b/examples/opengl/grabber/grabber.pro
@@ -0,0 +1,12 @@
+HEADERS = glwidget.h \
+ mainwindow.h
+SOURCES = glwidget.cpp \
+ main.cpp \
+ mainwindow.cpp
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/grabber
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS grabber.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/grabber
+INSTALLS += target sources
diff --git a/examples/opengl/grabber/main.cpp b/examples/opengl/grabber/main.cpp
new file mode 100644
index 0000000000..4856752c8c
--- /dev/null
+++ b/examples/opengl/grabber/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ MainWindow mainWin;
+ mainWin.show();
+ return app.exec();
+}
diff --git a/examples/opengl/grabber/mainwindow.cpp b/examples/opengl/grabber/mainwindow.cpp
new file mode 100644
index 0000000000..7e878f9677
--- /dev/null
+++ b/examples/opengl/grabber/mainwindow.cpp
@@ -0,0 +1,207 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtOpenGL>
+
+#include "glwidget.h"
+#include "mainwindow.h"
+
+MainWindow::MainWindow()
+{
+ centralWidget = new QWidget;
+ setCentralWidget(centralWidget);
+
+ glWidget = new GLWidget;
+ pixmapLabel = new QLabel;
+
+ glWidgetArea = new QScrollArea;
+ glWidgetArea->setWidget(glWidget);
+ glWidgetArea->setWidgetResizable(true);
+ glWidgetArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ glWidgetArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+ glWidgetArea->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
+ glWidgetArea->setMinimumSize(50, 50);
+
+ pixmapLabelArea = new QScrollArea;
+ pixmapLabelArea->setWidget(pixmapLabel);
+ pixmapLabelArea->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
+ pixmapLabelArea->setMinimumSize(50, 50);
+
+ xSlider = createSlider(SIGNAL(xRotationChanged(int)),
+ SLOT(setXRotation(int)));
+ ySlider = createSlider(SIGNAL(yRotationChanged(int)),
+ SLOT(setYRotation(int)));
+ zSlider = createSlider(SIGNAL(zRotationChanged(int)),
+ SLOT(setZRotation(int)));
+
+ createActions();
+ createMenus();
+
+ QGridLayout *centralLayout = new QGridLayout;
+ centralLayout->addWidget(glWidgetArea, 0, 0);
+ centralLayout->addWidget(pixmapLabelArea, 0, 1);
+ centralLayout->addWidget(xSlider, 1, 0, 1, 2);
+ centralLayout->addWidget(ySlider, 2, 0, 1, 2);
+ centralLayout->addWidget(zSlider, 3, 0, 1, 2);
+ centralWidget->setLayout(centralLayout);
+
+ xSlider->setValue(15 * 16);
+ ySlider->setValue(345 * 16);
+ zSlider->setValue(0 * 16);
+
+ setWindowTitle(tr("Grabber"));
+ resize(400, 300);
+}
+
+void MainWindow::renderIntoPixmap()
+{
+ QSize size = getSize();
+ if (size.isValid()) {
+ QPixmap pixmap = glWidget->renderPixmap(size.width(), size.height());
+ setPixmap(pixmap);
+ }
+}
+
+void MainWindow::grabFrameBuffer()
+{
+ QImage image = glWidget->grabFrameBuffer();
+ setPixmap(QPixmap::fromImage(image));
+}
+
+void MainWindow::clearPixmap()
+{
+ setPixmap(QPixmap());
+}
+
+void MainWindow::about()
+{
+ QMessageBox::about(this, tr("About Grabber"),
+ tr("The <b>Grabber</b> example demonstrates two approaches for "
+ "rendering OpenGL into a Qt pixmap."));
+}
+
+void MainWindow::createActions()
+{
+ renderIntoPixmapAct = new QAction(tr("&Render into Pixmap..."), this);
+ renderIntoPixmapAct->setShortcut(tr("Ctrl+R"));
+ connect(renderIntoPixmapAct, SIGNAL(triggered()),
+ this, SLOT(renderIntoPixmap()));
+
+ grabFrameBufferAct = new QAction(tr("&Grab Frame Buffer"), this);
+ grabFrameBufferAct->setShortcut(tr("Ctrl+G"));
+ connect(grabFrameBufferAct, SIGNAL(triggered()),
+ this, SLOT(grabFrameBuffer()));
+
+ clearPixmapAct = new QAction(tr("&Clear Pixmap"), this);
+ clearPixmapAct->setShortcut(tr("Ctrl+L"));
+ connect(clearPixmapAct, SIGNAL(triggered()), this, SLOT(clearPixmap()));
+
+ exitAct = new QAction(tr("E&xit"), this);
+ exitAct->setShortcut(tr("Ctrl+Q"));
+ connect(exitAct, SIGNAL(triggered()), this, SLOT(close()));
+
+ aboutAct = new QAction(tr("&About"), this);
+ connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));
+
+ aboutQtAct = new QAction(tr("About &Qt"), this);
+ connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
+}
+
+void MainWindow::createMenus()
+{
+ fileMenu = menuBar()->addMenu(tr("&File"));
+ fileMenu->addAction(renderIntoPixmapAct);
+ fileMenu->addAction(grabFrameBufferAct);
+ fileMenu->addAction(clearPixmapAct);
+ fileMenu->addSeparator();
+ fileMenu->addAction(exitAct);
+
+ helpMenu = menuBar()->addMenu(tr("&Help"));
+ helpMenu->addAction(aboutAct);
+ helpMenu->addAction(aboutQtAct);
+}
+
+QSlider *MainWindow::createSlider(const char *changedSignal,
+ const char *setterSlot)
+{
+ QSlider *slider = new QSlider(Qt::Horizontal);
+ slider->setRange(0, 360 * 16);
+ slider->setSingleStep(16);
+ slider->setPageStep(15 * 16);
+ slider->setTickInterval(15 * 16);
+ slider->setTickPosition(QSlider::TicksRight);
+ connect(slider, SIGNAL(valueChanged(int)), glWidget, setterSlot);
+ connect(glWidget, changedSignal, slider, SLOT(setValue(int)));
+ return slider;
+}
+
+void MainWindow::setPixmap(const QPixmap &pixmap)
+{
+ pixmapLabel->setPixmap(pixmap);
+ QSize size = pixmap.size();
+ if (size - QSize(1, 0) == pixmapLabelArea->maximumViewportSize())
+ size -= QSize(1, 0);
+ pixmapLabel->resize(size);
+}
+
+QSize MainWindow::getSize()
+{
+ bool ok;
+ QString text = QInputDialog::getText(this, tr("Grabber"),
+ tr("Enter pixmap size:"),
+ QLineEdit::Normal,
+ tr("%1 x %2").arg(glWidget->width())
+ .arg(glWidget->height()),
+ &ok);
+ if (!ok)
+ return QSize();
+
+ QRegExp regExp(tr("([0-9]+) *x *([0-9]+)"));
+ if (regExp.exactMatch(text)) {
+ int width = regExp.cap(1).toInt();
+ int height = regExp.cap(2).toInt();
+ if (width > 0 && width < 2048 && height > 0 && height < 2048)
+ return QSize(width, height);
+ }
+
+ return glWidget->size();
+}
diff --git a/examples/opengl/grabber/mainwindow.h b/examples/opengl/grabber/mainwindow.h
new file mode 100644
index 0000000000..8f777478c8
--- /dev/null
+++ b/examples/opengl/grabber/mainwindow.h
@@ -0,0 +1,95 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+QT_BEGIN_NAMESPACE
+class QAction;
+class QLabel;
+class QMenu;
+class QScrollArea;
+class QSlider;
+QT_END_NAMESPACE
+class GLWidget;
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+
+private slots:
+ void renderIntoPixmap();
+ void grabFrameBuffer();
+ void clearPixmap();
+ void about();
+
+private:
+ void createActions();
+ void createMenus();
+ QSlider *createSlider(const char *changedSignal, const char *setterSlot);
+ void setPixmap(const QPixmap &pixmap);
+ QSize getSize();
+
+ QWidget *centralWidget;
+ QScrollArea *glWidgetArea;
+ QScrollArea *pixmapLabelArea;
+ GLWidget *glWidget;
+ QLabel *pixmapLabel;
+ QSlider *xSlider;
+ QSlider *ySlider;
+ QSlider *zSlider;
+
+ QMenu *fileMenu;
+ QMenu *helpMenu;
+ QAction *grabFrameBufferAct;
+ QAction *renderIntoPixmapAct;
+ QAction *clearPixmapAct;
+ QAction *exitAct;
+ QAction *aboutAct;
+ QAction *aboutQtAct;
+};
+
+#endif
diff --git a/examples/opengl/hellogl/glwidget.cpp b/examples/opengl/hellogl/glwidget.cpp
new file mode 100644
index 0000000000..d81e7e6008
--- /dev/null
+++ b/examples/opengl/hellogl/glwidget.cpp
@@ -0,0 +1,266 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtOpenGL>
+
+#include <math.h>
+
+#include "glwidget.h"
+
+//! [0]
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(parent)
+{
+ object = 0;
+ xRot = 0;
+ yRot = 0;
+ zRot = 0;
+
+ trolltechGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0);
+ trolltechPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0);
+}
+//! [0]
+
+//! [1]
+GLWidget::~GLWidget()
+{
+ makeCurrent();
+ glDeleteLists(object, 1);
+}
+//! [1]
+
+//! [2]
+QSize GLWidget::minimumSizeHint() const
+{
+ return QSize(50, 50);
+}
+//! [2]
+
+//! [3]
+QSize GLWidget::sizeHint() const
+//! [3] //! [4]
+{
+ return QSize(400, 400);
+}
+//! [4]
+
+//! [5]
+void GLWidget::setXRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != xRot) {
+ xRot = angle;
+ emit xRotationChanged(angle);
+ updateGL();
+ }
+}
+//! [5]
+
+void GLWidget::setYRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != yRot) {
+ yRot = angle;
+ emit yRotationChanged(angle);
+ updateGL();
+ }
+}
+
+void GLWidget::setZRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != zRot) {
+ zRot = angle;
+ emit zRotationChanged(angle);
+ updateGL();
+ }
+}
+
+//! [6]
+void GLWidget::initializeGL()
+{
+ qglClearColor(trolltechPurple.dark());
+ object = makeObject();
+ glShadeModel(GL_FLAT);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+}
+//! [6]
+
+//! [7]
+void GLWidget::paintGL()
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glLoadIdentity();
+ glTranslated(0.0, 0.0, -10.0);
+ glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
+ glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
+ glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
+ glCallList(object);
+}
+//! [7]
+
+//! [8]
+void GLWidget::resizeGL(int width, int height)
+{
+ int side = qMin(width, height);
+ glViewport((width - side) / 2, (height - side) / 2, side, side);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+//! [8]
+
+//! [9]
+void GLWidget::mousePressEvent(QMouseEvent *event)
+{
+ lastPos = event->pos();
+}
+//! [9]
+
+//! [10]
+void GLWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ int dx = event->x() - lastPos.x();
+ int dy = event->y() - lastPos.y();
+
+ if (event->buttons() & Qt::LeftButton) {
+ setXRotation(xRot + 8 * dy);
+ setYRotation(yRot + 8 * dx);
+ } else if (event->buttons() & Qt::RightButton) {
+ setXRotation(xRot + 8 * dy);
+ setZRotation(zRot + 8 * dx);
+ }
+ lastPos = event->pos();
+}
+//! [10]
+
+GLuint GLWidget::makeObject()
+{
+ GLuint list = glGenLists(1);
+ glNewList(list, GL_COMPILE);
+
+ glBegin(GL_QUADS);
+
+ GLdouble x1 = +0.06;
+ GLdouble y1 = -0.14;
+ GLdouble x2 = +0.14;
+ GLdouble y2 = -0.06;
+ GLdouble x3 = +0.08;
+ GLdouble y3 = +0.00;
+ GLdouble x4 = +0.30;
+ GLdouble y4 = +0.22;
+
+ quad(x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(x3, y3, x4, y4, y4, x4, y3, x3);
+
+ extrude(x1, y1, x2, y2);
+ extrude(x2, y2, y2, x2);
+ extrude(y2, x2, y1, x1);
+ extrude(y1, x1, x1, y1);
+ extrude(x3, y3, x4, y4);
+ extrude(x4, y4, y4, x4);
+ extrude(y4, x4, y3, x3);
+
+ const double Pi = 3.14159265358979323846;
+ const int NumSectors = 200;
+
+ for (int i = 0; i < NumSectors; ++i) {
+ double angle1 = (i * 2 * Pi) / NumSectors;
+ GLdouble x5 = 0.30 * sin(angle1);
+ GLdouble y5 = 0.30 * cos(angle1);
+ GLdouble x6 = 0.20 * sin(angle1);
+ GLdouble y6 = 0.20 * cos(angle1);
+
+ double angle2 = ((i + 1) * 2 * Pi) / NumSectors;
+ GLdouble x7 = 0.20 * sin(angle2);
+ GLdouble y7 = 0.20 * cos(angle2);
+ GLdouble x8 = 0.30 * sin(angle2);
+ GLdouble y8 = 0.30 * cos(angle2);
+
+ quad(x5, y5, x6, y6, x7, y7, x8, y8);
+
+ extrude(x6, y6, x7, y7);
+ extrude(x8, y8, x5, y5);
+ }
+
+ glEnd();
+
+ glEndList();
+ return list;
+}
+
+void GLWidget::quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4)
+{
+ qglColor(trolltechGreen);
+
+ glVertex3d(x1, y1, -0.05);
+ glVertex3d(x2, y2, -0.05);
+ glVertex3d(x3, y3, -0.05);
+ glVertex3d(x4, y4, -0.05);
+
+ glVertex3d(x4, y4, +0.05);
+ glVertex3d(x3, y3, +0.05);
+ glVertex3d(x2, y2, +0.05);
+ glVertex3d(x1, y1, +0.05);
+}
+
+void GLWidget::extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
+{
+ qglColor(trolltechGreen.dark(250 + int(100 * x1)));
+
+ glVertex3d(x1, y1, +0.05);
+ glVertex3d(x2, y2, +0.05);
+ glVertex3d(x2, y2, -0.05);
+ glVertex3d(x1, y1, -0.05);
+}
+
+void GLWidget::normalizeAngle(int *angle)
+{
+ while (*angle < 0)
+ *angle += 360 * 16;
+ while (*angle > 360 * 16)
+ *angle -= 360 * 16;
+}
diff --git a/examples/opengl/hellogl/glwidget.h b/examples/opengl/hellogl/glwidget.h
new file mode 100644
index 0000000000..a5f73ee9c5
--- /dev/null
+++ b/examples/opengl/hellogl/glwidget.h
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+
+//! [0]
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent = 0);
+ ~GLWidget();
+
+ QSize minimumSizeHint() const;
+ QSize sizeHint() const;
+//! [0]
+
+//! [1]
+public slots:
+ void setXRotation(int angle);
+ void setYRotation(int angle);
+ void setZRotation(int angle);
+
+signals:
+ void xRotationChanged(int angle);
+ void yRotationChanged(int angle);
+ void zRotationChanged(int angle);
+//! [1]
+
+//! [2]
+protected:
+ void initializeGL();
+ void paintGL();
+ void resizeGL(int width, int height);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+//! [2]
+
+//! [3]
+private:
+ GLuint makeObject();
+ void quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4);
+ void extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
+ void normalizeAngle(int *angle);
+
+ GLuint object;
+ int xRot;
+ int yRot;
+ int zRot;
+ QPoint lastPos;
+ QColor trolltechGreen;
+ QColor trolltechPurple;
+};
+//! [3]
+
+#endif
diff --git a/examples/opengl/hellogl/hellogl.pro b/examples/opengl/hellogl/hellogl.pro
new file mode 100644
index 0000000000..ce9c8e8e34
--- /dev/null
+++ b/examples/opengl/hellogl/hellogl.pro
@@ -0,0 +1,12 @@
+HEADERS = glwidget.h \
+ window.h
+SOURCES = glwidget.cpp \
+ main.cpp \
+ window.cpp
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl
+INSTALLS += target sources
diff --git a/examples/opengl/hellogl/main.cpp b/examples/opengl/hellogl/main.cpp
new file mode 100644
index 0000000000..fa8b0abb9d
--- /dev/null
+++ b/examples/opengl/hellogl/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/opengl/hellogl/window.cpp b/examples/opengl/hellogl/window.cpp
new file mode 100644
index 0000000000..82031ee013
--- /dev/null
+++ b/examples/opengl/hellogl/window.cpp
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "glwidget.h"
+#include "window.h"
+
+//! [0]
+Window::Window()
+{
+ glWidget = new GLWidget;
+
+ xSlider = createSlider();
+ ySlider = createSlider();
+ zSlider = createSlider();
+
+ connect(xSlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setXRotation(int)));
+ connect(glWidget, SIGNAL(xRotationChanged(int)), xSlider, SLOT(setValue(int)));
+ connect(ySlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setYRotation(int)));
+ connect(glWidget, SIGNAL(yRotationChanged(int)), ySlider, SLOT(setValue(int)));
+ connect(zSlider, SIGNAL(valueChanged(int)), glWidget, SLOT(setZRotation(int)));
+ connect(glWidget, SIGNAL(zRotationChanged(int)), zSlider, SLOT(setValue(int)));
+//! [0]
+
+//! [1]
+ QHBoxLayout *mainLayout = new QHBoxLayout;
+ mainLayout->addWidget(glWidget);
+ mainLayout->addWidget(xSlider);
+ mainLayout->addWidget(ySlider);
+ mainLayout->addWidget(zSlider);
+ setLayout(mainLayout);
+
+ xSlider->setValue(15 * 16);
+ ySlider->setValue(345 * 16);
+ zSlider->setValue(0 * 16);
+ setWindowTitle(tr("Hello GL"));
+}
+//! [1]
+
+//! [2]
+QSlider *Window::createSlider()
+{
+ QSlider *slider = new QSlider(Qt::Vertical);
+ slider->setRange(0, 360 * 16);
+ slider->setSingleStep(16);
+ slider->setPageStep(15 * 16);
+ slider->setTickInterval(15 * 16);
+ slider->setTickPosition(QSlider::TicksRight);
+ return slider;
+}
+//! [2]
diff --git a/examples/opengl/hellogl/window.h b/examples/opengl/hellogl/window.h
new file mode 100644
index 0000000000..b20f8a8e13
--- /dev/null
+++ b/examples/opengl/hellogl/window.h
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QSlider;
+QT_END_NAMESPACE
+//! [0]
+class GLWidget;
+
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+
+private:
+ QSlider *createSlider();
+
+ GLWidget *glWidget;
+ QSlider *xSlider;
+ QSlider *ySlider;
+ QSlider *zSlider;
+};
+//! [0]
+
+#endif
diff --git a/examples/opengl/hellogl_es/bubble.cpp b/examples/opengl/hellogl_es/bubble.cpp
new file mode 100644
index 0000000000..691d314111
--- /dev/null
+++ b/examples/opengl/hellogl_es/bubble.cpp
@@ -0,0 +1,140 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "bubble.h"
+
+Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity)
+ : position(position), vel(velocity), radius(radius)
+{
+ innerColor = randomColor();
+ outerColor = randomColor();
+ cache = 0;
+ updateBrush();
+}
+
+//! [0]
+void Bubble::updateCache()
+{
+ if (cache)
+ delete cache;
+ cache = new QImage(qRound(radius * 2 + 2), qRound(radius * 2 + 2), QImage::Format_ARGB32);
+ cache->fill(0x00000000);
+ QPainter p(cache);
+ p.setRenderHint(QPainter::HighQualityAntialiasing);
+ QPen pen(Qt::white);
+ pen.setWidth(2);
+ p.setPen(pen);
+ p.setBrush(brush);
+ p.drawEllipse(0, 0, int(2*radius), int(2*radius));
+}
+//! [0]
+
+Bubble::~Bubble()
+{
+ if (cache)
+ delete cache;
+}
+
+void Bubble::updateBrush()
+{
+ QRadialGradient gradient(QPointF(radius, radius), radius,
+ QPointF(radius*0.5, radius*0.5));
+
+ gradient.setColorAt(0, QColor(255, 255, 255, 255));
+ gradient.setColorAt(0.25, innerColor);
+ gradient.setColorAt(1, outerColor);
+ brush = QBrush(gradient);
+ updateCache();
+}
+
+//! [1]
+void Bubble::drawBubble(QPainter *painter)
+{
+ painter->save();
+ painter->translate(position.x() - radius, position.y() - radius);
+ painter->setOpacity(0.8);
+ painter->drawImage(0, 0, *cache);
+ painter->restore();
+}
+//! [1]
+
+QColor Bubble::randomColor()
+{
+ int red = int(185 + 70.0*qrand()/(RAND_MAX+1.0));
+ int green = int(185 + 70.0*qrand()/(RAND_MAX+1.0));
+ int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
+ int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0));
+
+ return QColor(red, green, blue, alpha);
+}
+
+void Bubble::move(const QRect &bbox)
+{
+ position += vel;
+ qreal leftOverflow = position.x() - radius - bbox.left();
+ qreal rightOverflow = position.x() + radius - bbox.right();
+ qreal topOverflow = position.y() - radius - bbox.top();
+ qreal bottomOverflow = position.y() + radius - bbox.bottom();
+
+ if (leftOverflow < 0.0) {
+ position.setX(position.x() - 2 * leftOverflow);
+ vel.setX(-vel.x());
+ } else if (rightOverflow > 0.0) {
+ position.setX(position.x() - 2 * rightOverflow);
+ vel.setX(-vel.x());
+ }
+
+ if (topOverflow < 0.0) {
+ position.setY(position.y() - 2 * topOverflow);
+ vel.setY(-vel.y());
+ } else if (bottomOverflow > 0.0) {
+ position.setY(position.y() - 2 * bottomOverflow);
+ vel.setY(-vel.y());
+ }
+}
+
+QRectF Bubble::rect()
+{
+ return QRectF(position.x() - radius, position.y() - radius,
+ 2 * radius, 2 * radius);
+}
diff --git a/examples/opengl/hellogl_es/bubble.h b/examples/opengl/hellogl_es/bubble.h
new file mode 100644
index 0000000000..a32754fe0c
--- /dev/null
+++ b/examples/opengl/hellogl_es/bubble.h
@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BUBBLE_H
+#define BUBBLE_H
+
+#include <QBrush>
+#include <QColor>
+#include <QPointF>
+#include <QRect>
+#include <QRectF>
+
+class QPainter;
+
+class Bubble
+{
+public:
+ Bubble(const QPointF &position, qreal radius, const QPointF &velocity);
+ ~Bubble();
+
+ void drawBubble(QPainter *painter);
+ void updateBrush();
+ void move(const QRect &bbox);
+ void updateCache();
+ QRectF rect();
+
+private:
+ QColor randomColor();
+
+ QBrush brush;
+ QPointF position;
+ QPointF vel;
+ qreal radius;
+ QColor innerColor;
+ QColor outerColor;
+ QImage *cache;
+};
+
+#endif
diff --git a/examples/opengl/hellogl_es/cl_helper.h b/examples/opengl/hellogl_es/cl_helper.h
new file mode 100644
index 0000000000..416c9bbf04
--- /dev/null
+++ b/examples/opengl/hellogl_es/cl_helper.h
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifdef QT_OPENGL_ES_1_CL
+
+//! [0]
+#define FLOAT2X(f) ((int) ( (f) * (65536)))
+#define X2FLOAT(x) ((float)(x) / 65536.0f)
+
+#define f2vt(f) FLOAT2X(f)
+#define vt2f(x) X2FLOAT(x)
+
+#define q_vertexType GLfixed
+#define q_vertexTypeEnum GL_FIXED
+
+#define q_glFog glFogx
+#define q_glFogv glFogxv
+//! [0]
+
+#define q_glLight glLightx
+#define q_glLightv glLightxv
+#define q_glLightModel glLightModelx
+#define q_glLightModelv glLightModelxv
+
+#define q_glAlphaFunc glAlphaFuncx
+
+#define q_glMaterial glMaterialx
+#define q_glMaterialv glMaterialxv
+#define q_glColor4 glColor4x
+
+#define q_glTexParameter glTexParameterx
+#define q_glTexEnv glTexEnvx
+
+#define q_glOrtho glOrthox
+#define q_glFrustum glFrustumx
+
+#define q_glTranslate glTranslatex
+#define q_glScale glScalex
+#define q_glRotate glRotatex
+#define q_glLoadMatrix glLoadMatrixx
+
+#define q_glClearColor glClearColorx
+
+#define q_glMultMatrix glMultMatrixx
+
+#define q_glNormal3 glNormal3x
+
+#define q_glPolygonOffset glPolygonOffsetx
+#define q_glPointSize glPointSizex
+
+//! [1]
+#else
+
+#define f2vt(f) (f)
+#define vt2f(x) (x)
+
+#define q_vertexType GLfloat
+#define q_vertexTypeEnum GL_FLOAT
+
+#define q_glFog glFogf
+#define q_glFogv glFogfv
+//! [1]
+
+#define q_glLight glLightf
+#define q_glLightv glLightfv
+#define q_glLightModel glLightModelf
+#define q_glLightModelv glLightModelfv
+
+#define q_glAlphaFunc glAlphaFuncf
+
+#define q_glMaterial glMaterialf
+#define q_glMaterialv glMaterialfv
+#define q_glColor4 glColor4f
+
+#define q_glTexParameter glTexParameterf
+#define q_glTexEnv glTexEnvf
+
+#define q_glOrtho glOrthof
+#define q_glFrustum glFrustumf
+
+#define q_glTranslate glTranslatef
+#define q_glScale glScalef
+#define q_glRotate glRotatef
+#define q_glLoadMatrix glLoadMatrixf
+
+#define q_glClearColor glClearColor
+
+#define q_glMultMatrix glMultMatrixf
+
+#define q_glNormal3 glNormal3f
+
+#define q_glPolygonOffset glPolygonOffsetf
+#define q_glPointSize glPointSizef
+
+#endif
diff --git a/examples/opengl/hellogl_es/glwidget.cpp b/examples/opengl/hellogl_es/glwidget.cpp
new file mode 100644
index 0000000000..6098c999f6
--- /dev/null
+++ b/examples/opengl/hellogl_es/glwidget.cpp
@@ -0,0 +1,457 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <QPainter>
+#include <math.h>
+
+#include "bubble.h"
+#include "cl_helper.h"
+
+
+const int bubbleNum = 8;
+
+inline void CrossProduct(qreal &xOut, qreal &yOut, qreal &zOut, qreal x1, qreal y1, qreal z1, qreal x2, qreal y2, qreal z2)
+{
+ xOut = y1 * z2 - z1 * y2;
+ yOut = z1 * x2 - x1 * z2;
+ zOut = x1 * y2 - y1 * x2;
+}
+
+inline void Normalize(qreal &x, qreal &y, qreal &z)
+{
+ qreal l = sqrt(x*x + y*y + z*z);
+ x = x / l;
+ y = y / l;
+ z = z / l;
+}
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(parent)
+{
+ qtLogo = true;
+ createdVertices = 0;
+ createdNormals = 0;
+ m_vertexNumber = 0;
+ frames = 0;
+ setAttribute(Qt::WA_PaintOnScreen);
+ setAttribute(Qt::WA_NoSystemBackground);
+ setAutoBufferSwap(false);
+ m_showBubbles = true;
+}
+
+GLWidget::~GLWidget()
+{
+ if (createdVertices)
+ delete[] createdVertices;
+ if (createdNormals)
+ delete[] createdNormals;
+}
+
+void GLWidget::setScaling(int scale) {
+
+ if (scale > 50)
+ m_fScale = 1 + qreal(scale -50) / 50 * 0.5;
+ else if (scale < 50)
+ m_fScale = 1- (qreal(50 - scale) / 50 * 1/2);
+ else
+ m_fScale = 1;
+}
+
+void GLWidget::setLogo() {
+ qtLogo = true;
+}
+
+void GLWidget::setTexture() {
+ qtLogo = false;
+}
+
+void GLWidget::showBubbles(bool bubbles)
+{
+ m_showBubbles = bubbles;
+}
+
+//! [2]
+void GLWidget::paintQtLogo()
+{
+ glDisable(GL_TEXTURE_2D);
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glVertexPointer(3,q_vertexTypeEnum,0, createdVertices);
+ glEnableClientState(GL_NORMAL_ARRAY);
+ glNormalPointer(q_vertexTypeEnum,0,createdNormals);
+ glDrawArrays(GL_TRIANGLES, 0, m_vertexNumber / 3);
+}
+//! [2]
+
+void GLWidget::paintTexturedCube()
+{
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, m_uiTexture);
+ q_vertexType afVertices[] = {
+ f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(0.5),f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(-0.5),f2vt(0.5),
+ f2vt(0.5), f2vt(-0.5), f2vt(0.5), f2vt(-0.5),f2vt(0.5),f2vt(0.5),f2vt(0.5),f2vt(0.5),f2vt(0.5),
+ f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(0.5),f2vt(-0.5),f2vt(-0.5),f2vt(-0.5),f2vt(0.5),f2vt(-0.5),
+ f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(-0.5),
+
+ f2vt(0.5), f2vt(-0.5), f2vt(-0.5), f2vt(0.5),f2vt(-0.5),f2vt(0.5),f2vt(0.5),f2vt(0.5),f2vt(-0.5),
+ f2vt(0.5), f2vt(0.5), f2vt(0.5), f2vt(0.5),f2vt(0.5),f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(0.5),
+ f2vt(-0.5), f2vt(0.5), f2vt(-0.5), f2vt(-0.5),f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(-0.5),f2vt(-0.5),
+ f2vt(-0.5), f2vt(-0.5), f2vt(0.5), f2vt(-0.5),f2vt(0.5),f2vt(-0.5),f2vt(-0.5),f2vt(0.5),f2vt(0.5),
+
+ f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(0.5), f2vt(-0.5),
+ f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(0.5),
+ f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(-0.5),
+ f2vt(0.5), f2vt(-0.5), f2vt(0.5), f2vt(0.5), f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(-0.5), f2vt(0.5)
+ };
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glVertexPointer(3,q_vertexTypeEnum,0,afVertices);
+
+ q_vertexType afTexCoord[] = {
+ f2vt(0.0f),f2vt(0.0f), f2vt(1.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f),
+ f2vt(1.0f),f2vt(1.0f), f2vt(0.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f),
+ f2vt(1.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f),
+ f2vt(0.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f),
+
+ f2vt(1.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f),
+ f2vt(0.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f),
+ f2vt(0.0f),f2vt(0.0f), f2vt(1.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f),
+ f2vt(1.0f),f2vt(1.0f), f2vt(0.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f),
+
+ f2vt(0.0f),f2vt(1.0f), f2vt(1.0f),f2vt(0.0f), f2vt(1.0f),f2vt(1.0f),
+ f2vt(1.0f),f2vt(0.0f), f2vt(0.0f),f2vt(1.0f), f2vt(0.0f),f2vt(0.0f),
+ f2vt(1.0f),f2vt(0.0f), f2vt(1.0f),f2vt(1.0f), f2vt(0.0f),f2vt(0.0f),
+ f2vt(0.0f),f2vt(1.0f), f2vt(0.0f),f2vt(0.0f), f2vt(1.0f),f2vt(1.0f)
+ };
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glTexCoordPointer(2,q_vertexTypeEnum,0,afTexCoord);
+
+ q_vertexType afNormals[] = {
+
+ f2vt(0),f2vt(0),f2vt(-1), f2vt(0),f2vt(0),f2vt(-1), f2vt(0),f2vt(0),f2vt(-1),
+ f2vt(0),f2vt(0),f2vt(-1), f2vt(0),f2vt(0),f2vt(-1), f2vt(0),f2vt(0),f2vt(-1),
+ f2vt(0),f2vt(0),f2vt(1), f2vt(0),f2vt(0),f2vt(1), f2vt(0),f2vt(0),f2vt(1),
+ f2vt(0),f2vt(0),f2vt(1), f2vt(0),f2vt(0),f2vt(1), f2vt(0),f2vt(0),f2vt(1),
+
+ f2vt(-1),f2vt(0),f2vt(0), f2vt(-1),f2vt(0),f2vt(0), f2vt(-1),f2vt(0),f2vt(0),
+ f2vt(-1),f2vt(0),f2vt(0), f2vt(-1),f2vt(0),f2vt(0), f2vt(-1),f2vt(0),f2vt(0),
+ f2vt(1),f2vt(0),f2vt(0), f2vt(1),f2vt(0),f2vt(0), f2vt(1),f2vt(0),f2vt(0),
+ f2vt(1),f2vt(0),f2vt(0), f2vt(1),f2vt(0),f2vt(0), f2vt(1),f2vt(0),f2vt(0),
+
+ f2vt(0),f2vt(-1),f2vt(0), f2vt(0),f2vt(-1),f2vt(0), f2vt(0),f2vt(-1),f2vt(0),
+ f2vt(0),f2vt(-1),f2vt(0), f2vt(0),f2vt(-1),f2vt(0), f2vt(0),f2vt(-1),f2vt(0),
+ f2vt(0),f2vt(1),f2vt(0), f2vt(0),f2vt(1),f2vt(0), f2vt(0),f2vt(1),f2vt(0),
+ f2vt(0),f2vt(1),f2vt(0), f2vt(0),f2vt(1),f2vt(0), f2vt(0),f2vt(1),f2vt(0)
+ };
+ glEnableClientState(GL_NORMAL_ARRAY);
+ glNormalPointer(q_vertexTypeEnum,0,afNormals);
+
+ glDrawArrays(GL_TRIANGLES, 0, 36);
+}
+
+void GLWidget::initializeGL ()
+{
+ q_glClearColor(f2vt(0.1f), f2vt(0.1f), f2vt(0.2f), f2vt(1.0f));
+
+ glEnable(GL_TEXTURE_2D);
+ glGenTextures(1, &m_uiTexture);
+ m_uiTexture = bindTexture(QImage(":/qt.png"));
+
+ q_glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ q_glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+
+ q_vertexType aLightPosition[] = {f2vt(0.0f),f2vt(0.3f),f2vt(1.0f),f2vt(0.0f)};
+
+ q_glLightv(GL_LIGHT0, GL_SPOT_DIRECTION, aLightPosition);
+ m_fAngle = 0;
+ m_fScale = 1;
+ createGeometry();
+ createBubbles(bubbleNum - bubbles.count());
+}
+
+void GLWidget::paintGL()
+{
+ createBubbles(bubbleNum - bubbles.count());
+
+//! [3]
+ QPainter painter;
+ painter.begin(this);
+
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+//! [3]
+
+//! [4]
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glMatrixMode(GL_TEXTURE);
+ glPushMatrix();
+
+ //Since OpenGL ES does not support glPush/PopAttrib(GL_ALL_ATTRIB_BITS)
+ //we have to take care of the states ourselves
+
+ q_glClearColor(f2vt(0.1f), f2vt(0.1f), f2vt(0.2f), f2vt(1.0f));
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_TEXTURE_2D);
+
+ q_glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ q_glTexParameter(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+
+ glShadeModel(GL_FLAT);
+ glFrontFace(GL_CW);
+ glCullFace(GL_FRONT);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_DEPTH_TEST);
+
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ q_glRotate(f2vt(m_fAngle), f2vt(0.0), f2vt(1.0), f2vt(0.0));
+ q_glRotate(f2vt(m_fAngle), f2vt(1.0), f2vt(0.0), f2vt(0.0));
+ q_glRotate(f2vt(m_fAngle), f2vt(0.0), f2vt(0.0), f2vt(1.0));
+ q_glScale(f2vt(m_fScale), f2vt(m_fScale),f2vt(m_fScale));
+ q_glTranslate(f2vt(0),f2vt(-0.2),f2vt(0));
+
+ q_vertexType matDiff[] = {f2vt(0.40), f2vt(1.0), f2vt(0.0), f2vt(1.0)};
+ q_glMaterialv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiff);
+
+ if (qtLogo)
+ paintQtLogo();
+ else
+ paintTexturedCube();
+//! [4]
+
+//![5]
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode(GL_TEXTURE);
+ glPopMatrix();
+
+ glDisable(GL_LIGHTING);
+ glDisable(GL_LIGHT0);
+
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_CULL_FACE);
+//![5]
+
+//! [6]
+ if (m_showBubbles)
+ foreach (Bubble *bubble, bubbles) {
+ bubble->drawBubble(&painter);
+ }
+//! [6]
+
+//! [7]
+ QString framesPerSecond;
+ framesPerSecond.setNum(frames /(time.elapsed() / 1000.0), 'f', 2);
+
+ painter.setPen(Qt::white);
+
+ painter.drawText(20, 40, framesPerSecond + " fps");
+
+ painter.end();
+//! [7]
+
+//! [8]
+ swapBuffers();
+//! [8]
+
+ QMutableListIterator<Bubble*> iter(bubbles);
+
+ while (iter.hasNext()) {
+ Bubble *bubble = iter.next();
+ bubble->move(rect());
+ }
+ if (!(frames % 100)) {
+ time.start();
+ frames = 0;
+ }
+ m_fAngle += 1.0f;
+ frames ++;
+}
+
+void GLWidget::createBubbles(int number)
+{
+ for (int i = 0; i < number; ++i) {
+ QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))),
+ height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))));
+ qreal radius = qMin(width(), height())*(0.0175 + 0.0875*qrand()/(RAND_MAX+1.0));
+ QPointF velocity(width()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)),
+ height()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)));
+
+ bubbles.append(new Bubble(position, radius, velocity));
+ }
+}
+
+void GLWidget::createGeometry()
+{
+ vertices.clear();
+ normals.clear();
+
+ qreal x1 = +0.06f;
+ qreal y1 = -0.14f;
+ qreal x2 = +0.14f;
+ qreal y2 = -0.06f;
+ qreal x3 = +0.08f;
+ qreal y3 = +0.00f;
+ qreal x4 = +0.30f;
+ qreal y4 = +0.22f;
+
+ quad(x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(x3, y3, x4, y4, y4, x4, y3, x3);
+
+ extrude(x1, y1, x2, y2);
+ extrude(x2, y2, y2, x2);
+ extrude(y2, x2, y1, x1);
+ extrude(y1, x1, x1, y1);
+ extrude(x3, y3, x4, y4);
+ extrude(x4, y4, y4, x4);
+ extrude(y4, x4, y3, x3);
+
+ const qreal Pi = 3.14159f;
+ const int NumSectors = 100;
+
+ for (int i = 0; i < NumSectors; ++i) {
+ qreal angle1 = (i * 2 * Pi) / NumSectors;
+ qreal x5 = 0.30 * sin(angle1);
+ qreal y5 = 0.30 * cos(angle1);
+ qreal x6 = 0.20 * sin(angle1);
+ qreal y6 = 0.20 * cos(angle1);
+
+ qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors;
+ qreal x7 = 0.20 * sin(angle2);
+ qreal y7 = 0.20 * cos(angle2);
+ qreal x8 = 0.30 * sin(angle2);
+ qreal y8 = 0.30 * cos(angle2);
+
+ quad(x5, y5, x6, y6, x7, y7, x8, y8);
+
+ extrude(x6, y6, x7, y7);
+ extrude(x8, y8, x5, y5);
+ }
+
+//! [1]
+ m_vertexNumber = vertices.size();
+ createdVertices = new q_vertexType[m_vertexNumber];
+ createdNormals = new q_vertexType[m_vertexNumber];
+ for (int i = 0;i < m_vertexNumber;i++) {
+ createdVertices[i] = f2vt(vertices.at(i) * 2);
+ createdNormals[i] = f2vt(normals.at(i));
+ }
+ vertices.clear();
+ normals.clear();
+}
+//! [1]
+
+//! [0]
+void GLWidget::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4)
+{
+ qreal nx, ny, nz;
+
+ vertices << x1 << y1 << -0.05f;
+ vertices << x2 << y2 << -0.05f;
+ vertices << x4 << y4 << -0.05f;
+
+ vertices << x3 << y3 << -0.05f;
+ vertices << x4 << y4 << -0.05f;
+ vertices << x2 << y2 << -0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0, x4 - x1, y4 - y1, 0);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ vertices << x4 << y4 << 0.05f;
+ vertices << x2 << y2 << 0.05f;
+ vertices << x1 << y1 << 0.05f;
+
+ vertices << x2 << y2 << 0.05f;
+ vertices << x4 << y4 << 0.05f;
+ vertices << x3 << y3 << 0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x4, y2 - y4, 0, x1 - x4, y1 - y4, 0);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+}
+//! [0]
+
+void GLWidget::extrude(qreal x1, qreal y1, qreal x2, qreal y2)
+{
+ qreal nx, ny, nz;
+
+ vertices << x1 << y1 << +0.05f;
+ vertices << x2 << y2 << +0.05f;
+ vertices << x1 << y1 << -0.05f;
+
+ vertices << x2 << y2 << -0.05f;
+ vertices << x1 << y1 << -0.05f;
+ vertices << x2 << y2 << +0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0.0f, 0.0f, 0.0f, -0.1f);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+}
diff --git a/examples/opengl/hellogl_es/glwidget.h b/examples/opengl/hellogl_es/glwidget.h
new file mode 100644
index 0000000000..954342e3af
--- /dev/null
+++ b/examples/opengl/hellogl_es/glwidget.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+#include <QTime>
+
+#include "cl_helper.h"
+
+
+class Bubble;
+class GLWidget : public QGLWidget {
+
+ Q_OBJECT
+public:
+ GLWidget(QWidget *parent = 0);
+ ~GLWidget();
+public slots:
+ void setScaling(int scale);
+ void setLogo();
+ void setTexture();
+ void showBubbles(bool);
+protected:
+ void paintGL ();
+ void initializeGL ();
+private:
+ GLuint m_uiTexture;
+ qreal m_fAngle;
+ qreal m_fScale;
+ bool m_showBubbles;
+ void paintTexturedCube();
+ void paintQtLogo();
+ void createGeometry();
+ void createBubbles(int number);
+ void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
+ void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
+ QList<qreal> vertices;
+ QList<qreal> normals;
+ q_vertexType *createdVertices;
+ q_vertexType *createdNormals;
+ int m_vertexNumber;
+ bool qtLogo;
+ QList<Bubble*> bubbles;
+ int frames;
+ QTime time;
+};
+#endif
diff --git a/examples/opengl/hellogl_es/hellogl_es.pro b/examples/opengl/hellogl_es/hellogl_es.pro
new file mode 100644
index 0000000000..7459456785
--- /dev/null
+++ b/examples/opengl/hellogl_es/hellogl_es.pro
@@ -0,0 +1,34 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Thu Oct 4 19:01:12 2007
+######################################################################
+
+TEMPLATE = app
+TARGET =
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+SOURCES += glwidget.cpp
+SOURCES += mainwindow.cpp
+SOURCES += bubble.cpp
+
+HEADERS += glwidget.h
+HEADERS += mainwindow.h
+HEADERS += bubble.h
+
+RESOURCES += texture.qrc
+QT += opengl
+
+contains(QT_CONFIG,opengles1) {
+ QMAKE_LIBS += "libGLES_CM.lib"
+}
+contains(QT_CONFIG,opengles1cl) {
+ QMAKE_LIBS += "libGLES_CL.lib"
+}
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl_es
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl_es.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl_es
+INSTALLS += target sources
diff --git a/examples/opengl/hellogl_es/main.cpp b/examples/opengl/hellogl_es/main.cpp
new file mode 100644
index 0000000000..feff054783
--- /dev/null
+++ b/examples/opengl/hellogl_es/main.cpp
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QMainWindow>
+#include "mainwindow.h"
+
+int main( int argc, char ** argv )
+{
+ Q_INIT_RESOURCE(texture);
+ QApplication a( argc, argv );
+ MainWindow mw;
+ mw.showMaximized();
+ return a.exec();
+}
diff --git a/examples/opengl/hellogl_es/mainwindow.cpp b/examples/opengl/hellogl_es/mainwindow.cpp
new file mode 100644
index 0000000000..26fbeaa31b
--- /dev/null
+++ b/examples/opengl/hellogl_es/mainwindow.cpp
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "mainwindow.h"
+
+#include <QApplication>
+#include <QMenuBar>
+#include <QGroupBox>
+#include <QGridLayout>
+#include <QSlider>
+#include <QLabel>
+#include <QTimer>
+
+#include "glwidget.h"
+
+MainWindow::MainWindow()
+{
+ GLWidget *glwidget = new GLWidget();
+ QLabel *label = new QLabel(this);
+ QTimer *timer = new QTimer(this);
+ QSlider *slider = new QSlider(this);
+ slider->setOrientation(Qt::Horizontal);
+
+ slider->setRange(0, 100);
+ slider->setSliderPosition(50);
+ timer->setInterval(10);
+ label->setText("A QGlWidget with OpenGl ES");
+ label->setAlignment(Qt::AlignHCenter);
+
+ QGroupBox * groupBox = new QGroupBox(this);
+ setCentralWidget(groupBox);
+ groupBox->setTitle("OpenGL ES Example");
+
+ QGridLayout *layout = new QGridLayout(groupBox);
+
+ layout->addWidget(glwidget,1,0,8,1);
+ layout->addWidget(label,9,0,1,1);
+ layout->addWidget(slider, 11,0,1,1);
+
+ groupBox->setLayout(layout);
+
+ QMenu *fileMenu = new QMenu("File");
+ QMenu *helpMenu = new QMenu("Help");
+ QMenu *showMenu = new QMenu("Show");
+ menuBar()->addMenu(fileMenu);
+ menuBar()->addMenu(showMenu);
+ menuBar()->addMenu(helpMenu);
+ QAction *exit = new QAction("Exit", fileMenu);
+ QAction *aboutQt = new QAction("AboutQt", helpMenu);
+ QAction *showLogo = new QAction("Show 3D Logo", showMenu);
+ QAction *showTexture = new QAction("Show 2D Texture", showMenu);
+ QAction *showBubbles = new QAction("Show bubbles", showMenu);
+ showBubbles->setCheckable(true);
+ showBubbles->setChecked(true);
+ fileMenu->addAction(exit);
+ helpMenu->addAction(aboutQt);
+ showMenu->addAction(showLogo);
+ showMenu->addAction(showTexture);
+ showMenu->addAction(showBubbles);
+
+ QObject::connect(timer, SIGNAL(timeout()), glwidget, SLOT(updateGL()));
+ QObject::connect(exit, SIGNAL(triggered(bool)), this, SLOT(close()));
+ QObject::connect(aboutQt, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt()));
+
+ QObject::connect(showLogo, SIGNAL(triggered(bool)), glwidget, SLOT(setLogo()));
+ QObject::connect(showTexture, SIGNAL(triggered(bool)), glwidget, SLOT(setTexture()));
+ QObject::connect(showBubbles, SIGNAL(triggered(bool)), glwidget, SLOT(showBubbles(bool)));
+ QObject::connect(slider, SIGNAL(valueChanged(int)), glwidget, SLOT(setScaling(int)));
+ timer->start();
+}
diff --git a/examples/opengl/hellogl_es/mainwindow.h b/examples/opengl/hellogl_es/mainwindow.h
new file mode 100644
index 0000000000..72b723c7b6
--- /dev/null
+++ b/examples/opengl/hellogl_es/mainwindow.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+class QSlider;
+class GLWidget;
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+
+private:
+};
+
+#endif
diff --git a/examples/opengl/hellogl_es/qt.png b/examples/opengl/hellogl_es/qt.png
new file mode 100644
index 0000000000..79e383cf50
--- /dev/null
+++ b/examples/opengl/hellogl_es/qt.png
Binary files differ
diff --git a/examples/opengl/hellogl_es/texture.qrc b/examples/opengl/hellogl_es/texture.qrc
new file mode 100644
index 0000000000..ff1d0e535f
--- /dev/null
+++ b/examples/opengl/hellogl_es/texture.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>qt.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/hellogl_es2/bubble.cpp b/examples/opengl/hellogl_es2/bubble.cpp
new file mode 100644
index 0000000000..691d314111
--- /dev/null
+++ b/examples/opengl/hellogl_es2/bubble.cpp
@@ -0,0 +1,140 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "bubble.h"
+
+Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity)
+ : position(position), vel(velocity), radius(radius)
+{
+ innerColor = randomColor();
+ outerColor = randomColor();
+ cache = 0;
+ updateBrush();
+}
+
+//! [0]
+void Bubble::updateCache()
+{
+ if (cache)
+ delete cache;
+ cache = new QImage(qRound(radius * 2 + 2), qRound(radius * 2 + 2), QImage::Format_ARGB32);
+ cache->fill(0x00000000);
+ QPainter p(cache);
+ p.setRenderHint(QPainter::HighQualityAntialiasing);
+ QPen pen(Qt::white);
+ pen.setWidth(2);
+ p.setPen(pen);
+ p.setBrush(brush);
+ p.drawEllipse(0, 0, int(2*radius), int(2*radius));
+}
+//! [0]
+
+Bubble::~Bubble()
+{
+ if (cache)
+ delete cache;
+}
+
+void Bubble::updateBrush()
+{
+ QRadialGradient gradient(QPointF(radius, radius), radius,
+ QPointF(radius*0.5, radius*0.5));
+
+ gradient.setColorAt(0, QColor(255, 255, 255, 255));
+ gradient.setColorAt(0.25, innerColor);
+ gradient.setColorAt(1, outerColor);
+ brush = QBrush(gradient);
+ updateCache();
+}
+
+//! [1]
+void Bubble::drawBubble(QPainter *painter)
+{
+ painter->save();
+ painter->translate(position.x() - radius, position.y() - radius);
+ painter->setOpacity(0.8);
+ painter->drawImage(0, 0, *cache);
+ painter->restore();
+}
+//! [1]
+
+QColor Bubble::randomColor()
+{
+ int red = int(185 + 70.0*qrand()/(RAND_MAX+1.0));
+ int green = int(185 + 70.0*qrand()/(RAND_MAX+1.0));
+ int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
+ int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0));
+
+ return QColor(red, green, blue, alpha);
+}
+
+void Bubble::move(const QRect &bbox)
+{
+ position += vel;
+ qreal leftOverflow = position.x() - radius - bbox.left();
+ qreal rightOverflow = position.x() + radius - bbox.right();
+ qreal topOverflow = position.y() - radius - bbox.top();
+ qreal bottomOverflow = position.y() + radius - bbox.bottom();
+
+ if (leftOverflow < 0.0) {
+ position.setX(position.x() - 2 * leftOverflow);
+ vel.setX(-vel.x());
+ } else if (rightOverflow > 0.0) {
+ position.setX(position.x() - 2 * rightOverflow);
+ vel.setX(-vel.x());
+ }
+
+ if (topOverflow < 0.0) {
+ position.setY(position.y() - 2 * topOverflow);
+ vel.setY(-vel.y());
+ } else if (bottomOverflow > 0.0) {
+ position.setY(position.y() - 2 * bottomOverflow);
+ vel.setY(-vel.y());
+ }
+}
+
+QRectF Bubble::rect()
+{
+ return QRectF(position.x() - radius, position.y() - radius,
+ 2 * radius, 2 * radius);
+}
diff --git a/examples/opengl/hellogl_es2/bubble.h b/examples/opengl/hellogl_es2/bubble.h
new file mode 100644
index 0000000000..a32754fe0c
--- /dev/null
+++ b/examples/opengl/hellogl_es2/bubble.h
@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BUBBLE_H
+#define BUBBLE_H
+
+#include <QBrush>
+#include <QColor>
+#include <QPointF>
+#include <QRect>
+#include <QRectF>
+
+class QPainter;
+
+class Bubble
+{
+public:
+ Bubble(const QPointF &position, qreal radius, const QPointF &velocity);
+ ~Bubble();
+
+ void drawBubble(QPainter *painter);
+ void updateBrush();
+ void move(const QRect &bbox);
+ void updateCache();
+ QRectF rect();
+
+private:
+ QColor randomColor();
+
+ QBrush brush;
+ QPointF position;
+ QPointF vel;
+ qreal radius;
+ QColor innerColor;
+ QColor outerColor;
+ QImage *cache;
+};
+
+#endif
diff --git a/examples/opengl/hellogl_es2/glwidget.cpp b/examples/opengl/hellogl_es2/glwidget.cpp
new file mode 100644
index 0000000000..213c5b2a36
--- /dev/null
+++ b/examples/opengl/hellogl_es2/glwidget.cpp
@@ -0,0 +1,642 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <QPainter>
+#include <math.h>
+
+#include "bubble.h"
+
+
+const int bubbleNum = 8;
+
+inline void CrossProduct(qreal &xOut, qreal &yOut, qreal &zOut, qreal x1, qreal y1, qreal z1, qreal x2, qreal y2, qreal z2)
+{
+ xOut = y1 * z2 - z1 * y2;
+ yOut = z1 * x2 - x1 * z2;
+ zOut = x1 * y2 - y1 * x2;
+}
+
+inline void Normalize(qreal &x, qreal &y, qreal &z)
+{
+ qreal l = sqrt(x*x + y*y + z*z);
+ x = x / l;
+ y = y / l;
+ z = z / l;
+}
+
+inline void IdentityMatrix(GLfloat *m)
+{
+ m[0 * 4 + 0] = 1.0f;
+ m[1 * 4 + 0] = 0.0f;
+ m[2 * 4 + 0] = 0.0f;
+ m[3 * 4 + 0] = 0.0f;
+ m[0 * 4 + 1] = 0.0f;
+ m[1 * 4 + 1] = 1.0f;
+ m[2 * 4 + 1] = 0.0f;
+ m[3 * 4 + 1] = 0.0f;
+ m[0 * 4 + 2] = 0.0f;
+ m[1 * 4 + 2] = 0.0f;
+ m[2 * 4 + 2] = 1.0f;
+ m[3 * 4 + 2] = 0.0f;
+ m[0 * 4 + 3] = 0.0f;
+ m[1 * 4 + 3] = 0.0f;
+ m[2 * 4 + 3] = 0.0f;
+ m[3 * 4 + 3] = 1.0f;
+}
+
+// Adjust a 4x4 matrix to apply a scale.
+inline void ScaleMatrix(GLfloat *m, GLfloat scalex, GLfloat scaley, GLfloat scalez)
+{
+ m[0 * 4 + 0] *= scalex;
+ m[0 * 4 + 1] *= scalex;
+ m[0 * 4 + 2] *= scalex;
+ m[0 * 4 + 3] *= scalex;
+ m[1 * 4 + 0] *= scaley;
+ m[1 * 4 + 1] *= scaley;
+ m[1 * 4 + 2] *= scaley;
+ m[1 * 4 + 3] *= scaley;
+ m[2 * 4 + 0] *= scalez;
+ m[2 * 4 + 1] *= scalez;
+ m[2 * 4 + 2] *= scalez;
+ m[2 * 4 + 3] *= scalez;
+}
+
+// Adjust a 4x4 matrix to apply a translation.
+inline void TranslateMatrix(GLfloat *m, GLfloat translatex, GLfloat translatey, GLfloat translatez)
+{
+ m[3 * 4 + 0] += m[0 * 4 + 0] * translatex + m[1 * 4 + 0] * translatey + m[2 * 4 + 0] * translatez;
+ m[3 * 4 + 1] += m[0 * 4 + 1] * translatex + m[1 * 4 + 1] * translatey + m[2 * 4 + 1] * translatez;
+ m[3 * 4 + 2] += m[0 * 4 + 2] * translatex + m[1 * 4 + 2] * translatey + m[2 * 4 + 2] * translatez;
+ m[3 * 4 + 3] += m[0 * 4 + 3] * translatex + m[1 * 4 + 3] * translatey + m[2 * 4 + 3] * translatez;
+}
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
+// Adjust a 4x4 matrix to apply a rotation.
+inline void RotateMatrix(GLfloat *m, GLfloat angle, GLfloat vx, GLfloat vy, GLfloat vz)
+{
+ GLfloat len = sqrt(vx * vx + vy * vy + vz * vz);
+ if (len != 0) {
+ vx /= len;
+ vy /= len;
+ vz /= len;
+ }
+
+ GLfloat c, s, ic;
+ c = cos(angle * M_PI / 180.0);
+ s = sin(angle * M_PI / 180.0);
+ ic = 1.0f - c;
+
+ GLfloat rot[16];
+ rot[0 * 4 + 0] = vx * vx * ic + c;
+ rot[1 * 4 + 0] = vx * vy * ic - vz * s;
+ rot[2 * 4 + 0] = vx * vz * ic + vy * s;
+ rot[3 * 4 + 0] = 0.0f;
+ rot[0 * 4 + 1] = vy * vx * ic + vz * s;
+ rot[1 * 4 + 1] = vy * vy * ic + c;
+ rot[2 * 4 + 1] = vy * vz * ic - vx * s;
+ rot[3 * 4 + 1] = 0.0f;
+ rot[0 * 4 + 2] = vx * vz * ic - vy * s;
+ rot[1 * 4 + 2] = vy * vz * ic + vx * s;
+ rot[2 * 4 + 2] = vz * vz * ic + c;
+ rot[3 * 4 + 2] = 0.0f;
+ rot[0 * 4 + 3] = 0.0f;
+ rot[1 * 4 + 3] = 0.0f;
+ rot[2 * 4 + 3] = 0.0f;
+ rot[3 * 4 + 3] = 1.0f;
+
+ GLfloat temp[16];
+ for (int i = 0; i < 4; ++i) {
+ for (int j = 0; j < 4; ++j) {
+ temp[j * 4 + i] = 0.0f;
+ for (int k = 0; k < 4; ++k) {
+ temp[j * 4 + i] += m[k * 4 + i] * rot[j * 4 + k];
+ }
+ }
+ }
+
+ qMemCopy(m, temp, sizeof(temp));
+}
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(parent)
+{
+ qtLogo = true;
+ createdVertices = 0;
+ createdNormals = 0;
+ m_vertexNumber = 0;
+ frames = 0;
+ setAttribute(Qt::WA_PaintOnScreen);
+ setAttribute(Qt::WA_NoSystemBackground);
+ setAutoBufferSwap(false);
+ m_showBubbles = true;
+#ifndef Q_WS_QWS
+ setMinimumSize(300, 250);
+#endif
+}
+
+GLWidget::~GLWidget()
+{
+ if (createdVertices)
+ delete[] createdVertices;
+ if (createdNormals)
+ delete[] createdNormals;
+}
+
+void GLWidget::setScaling(int scale) {
+
+ if (scale > 50)
+ m_fScale = 1 + qreal(scale -50) / 50 * 0.5;
+ else if (scale < 50)
+ m_fScale = 1- (qreal(50 - scale) / 50 * 1/2);
+ else
+ m_fScale = 1;
+}
+
+void GLWidget::setLogo() {
+ qtLogo = true;
+}
+
+void GLWidget::setTexture() {
+ qtLogo = false;
+}
+
+void GLWidget::showBubbles(bool bubbles)
+{
+ m_showBubbles = bubbles;
+}
+
+void GLWidget::paintQtLogo()
+{
+ glDisable(GL_TEXTURE_2D);
+ glVertexAttribPointer(vertexAttr1, 3, GL_FLOAT, GL_FALSE, 0, createdVertices);
+ glEnableVertexAttribArray(vertexAttr1);
+ glVertexAttribPointer(normalAttr1, 3, GL_FLOAT, GL_FALSE, 0, createdNormals);
+ glEnableVertexAttribArray(normalAttr1);
+ glDrawArrays(GL_TRIANGLES, 0, m_vertexNumber / 3);
+ glDisableVertexAttribArray(normalAttr1);
+ glDisableVertexAttribArray(vertexAttr1);
+}
+
+void GLWidget::paintTexturedCube()
+{
+ glEnable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, m_uiTexture);
+ GLfloat afVertices[] = {
+ -0.5, 0.5, 0.5, 0.5,-0.5,0.5,-0.5,-0.5,0.5,
+ 0.5, -0.5, 0.5, -0.5,0.5,0.5,0.5,0.5,0.5,
+ -0.5, -0.5, -0.5, 0.5,-0.5,-0.5,-0.5,0.5,-0.5,
+ 0.5, 0.5, -0.5, -0.5,0.5,-0.5,0.5,-0.5,-0.5,
+
+ 0.5, -0.5, -0.5, 0.5,-0.5,0.5,0.5,0.5,-0.5,
+ 0.5, 0.5, 0.5, 0.5,0.5,-0.5,0.5,-0.5,0.5,
+ -0.5, 0.5, -0.5, -0.5,-0.5,0.5,-0.5,-0.5,-0.5,
+ -0.5, -0.5, 0.5, -0.5,0.5,-0.5,-0.5,0.5,0.5,
+
+ 0.5, 0.5, -0.5, -0.5, 0.5, 0.5, -0.5, 0.5, -0.5,
+ -0.5, 0.5, 0.5, 0.5, 0.5, -0.5, 0.5, 0.5, 0.5,
+ -0.5, -0.5, -0.5, -0.5, -0.5, 0.5, 0.5, -0.5, -0.5,
+ 0.5, -0.5, 0.5, 0.5, -0.5, -0.5, -0.5, -0.5, 0.5
+ };
+ glVertexAttribPointer(vertexAttr2, 3, GL_FLOAT, GL_FALSE, 0, afVertices);
+ glEnableVertexAttribArray(vertexAttr2);
+
+ GLfloat afTexCoord[] = {
+ 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f,
+ 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f,
+ 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f,
+ 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f,
+
+ 1.0f,1.0f, 1.0f,0.0f, 0.0f,1.0f,
+ 0.0f,0.0f, 0.0f,1.0f, 1.0f,0.0f,
+ 0.0f,0.0f, 1.0f,1.0f, 1.0f,0.0f,
+ 1.0f,1.0f, 0.0f,0.0f, 0.0f,1.0f,
+
+ 0.0f,1.0f, 1.0f,0.0f, 1.0f,1.0f,
+ 1.0f,0.0f, 0.0f,1.0f, 0.0f,0.0f,
+ 1.0f,0.0f, 1.0f,1.0f, 0.0f,0.0f,
+ 0.0f,1.0f, 0.0f,0.0f, 1.0f,1.0f
+ };
+ glVertexAttribPointer(texCoordAttr2, 2, GL_FLOAT, GL_FALSE, 0, afTexCoord);
+ glEnableVertexAttribArray(texCoordAttr2);
+
+ GLfloat afNormals[] = {
+
+ 0,0,-1, 0,0,-1, 0,0,-1,
+ 0,0,-1, 0,0,-1, 0,0,-1,
+ 0,0,1, 0,0,1, 0,0,1,
+ 0,0,1, 0,0,1, 0,0,1,
+
+ -1,0,0, -1,0,0, -1,0,0,
+ -1,0,0, -1,0,0, -1,0,0,
+ 1,0,0, 1,0,0, 1,0,0,
+ 1,0,0, 1,0,0, 1,0,0,
+
+ 0,-1,0, 0,-1,0, 0,-1,0,
+ 0,-1,0, 0,-1,0, 0,-1,0,
+ 0,1,0, 0,1,0, 0,1,0,
+ 0,1,0, 0,1,0, 0,1,0
+ };
+ glVertexAttribPointer(normalAttr2, 3, GL_FLOAT, GL_FALSE, 0, afNormals);
+ glEnableVertexAttribArray(normalAttr2);
+
+ glUniform1i(textureUniform2, 0); // use texture unit 0
+
+ glDrawArrays(GL_TRIANGLES, 0, 36);
+
+ glDisableVertexAttribArray(vertexAttr2);
+ glDisableVertexAttribArray(normalAttr2);
+ glDisableVertexAttribArray(texCoordAttr2);
+}
+
+static void reportCompileErrors(GLuint shader, const char *src)
+{
+ GLint value = 0;
+ glGetShaderiv(shader, GL_COMPILE_STATUS, &value);
+ bool compiled = (value != 0);
+ value = 0;
+ glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &value);
+ if (!compiled && value > 1) {
+ char *log = new char [value];
+ GLint len;
+ glGetShaderInfoLog(shader, value, &len, log);
+ qWarning("%s\n", log);
+ qWarning("when compiling:\n%s\n", src);
+ delete [] log;
+ }
+}
+
+static void reportLinkErrors(GLuint program, const char *vsrc, const char *fsrc)
+{
+ GLint value = 0;
+ glGetProgramiv(program, GL_LINK_STATUS, &value);
+ bool linked = (value != 0);
+ value = 0;
+ glGetProgramiv(program, GL_INFO_LOG_LENGTH, &value);
+ if (!linked && value > 1) {
+ char *log = new char [value];
+ GLint len;
+ glGetProgramInfoLog(program, value, &len, log);
+ qWarning("%s\n", log);
+ qWarning("when linking:\n%s\nwith:\n%s\n", vsrc, fsrc);
+ delete [] log;
+ }
+}
+
+void GLWidget::initializeGL ()
+{
+ glClearColor(0.1f, 0.1f, 0.2f, 1.0f);
+
+ glEnable(GL_TEXTURE_2D);
+ glGenTextures(1, &m_uiTexture);
+ m_uiTexture = bindTexture(QImage(":/qt.png"));
+
+ GLuint vshader1 = glCreateShader(GL_VERTEX_SHADER);
+ const char *vsrc1[1] = {
+ "attribute highp vec4 vertex;\n"
+ "attribute mediump vec3 normal;\n"
+ "uniform mediump mat4 matrix;\n"
+ "varying mediump vec4 color;\n"
+ "void main(void)\n"
+ "{\n"
+ " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n"
+ " float angle = max(dot(normal, toLight), 0.0);\n"
+ " vec3 col = vec3(0.40, 1.0, 0.0);\n"
+ " color = vec4(col * 0.2 + col * 0.8 * angle, 1.0);\n"
+ " color = clamp(color, 0.0, 1.0);\n"
+ " gl_Position = matrix * vertex;\n"
+ "}\n"
+ };
+ glShaderSource(vshader1, 1, vsrc1, 0);
+ glCompileShader(vshader1);
+ reportCompileErrors(vshader1, vsrc1[0]);
+
+ GLuint fshader1 = glCreateShader(GL_FRAGMENT_SHADER);
+ const char *fsrc1[1] = {
+ "varying mediump vec4 color;\n"
+ "void main(void)\n"
+ "{\n"
+ " gl_FragColor = color;\n"
+ "}\n"
+ };
+ glShaderSource(fshader1, 1, fsrc1, 0);
+ glCompileShader(fshader1);
+ reportCompileErrors(fshader1, fsrc1[0]);
+
+ program1 = glCreateProgram();
+ glAttachShader(program1, vshader1);
+ glAttachShader(program1, fshader1);
+ glLinkProgram(program1);
+ reportLinkErrors(program1, vsrc1[0], fsrc1[0]);
+
+ vertexAttr1 = glGetAttribLocation(program1, "vertex");
+ normalAttr1 = glGetAttribLocation(program1, "normal");
+ matrixUniform1 = glGetUniformLocation(program1, "matrix");
+
+ GLuint vshader2 = glCreateShader(GL_VERTEX_SHADER);
+ const char *vsrc2[1] = {
+ "attribute highp vec4 vertex;\n"
+ "attribute highp vec4 texCoord;\n"
+ "attribute mediump vec3 normal;\n"
+ "uniform mediump mat4 matrix;\n"
+ "varying highp vec4 texc;\n"
+ "varying mediump float angle;\n"
+ "void main(void)\n"
+ "{\n"
+ " vec3 toLight = normalize(vec3(0.0, 0.3, 1.0));\n"
+ " angle = max(dot(normal, toLight), 0.0);\n"
+ " gl_Position = matrix * vertex;\n"
+ " texc = texCoord;\n"
+ "}\n"
+ };
+ glShaderSource(vshader2, 1, vsrc2, 0);
+ glCompileShader(vshader2);
+ reportCompileErrors(vshader2, vsrc2[0]);
+
+ GLuint fshader2 = glCreateShader(GL_FRAGMENT_SHADER);
+ const char *fsrc2[1] = {
+ "varying highp vec4 texc;\n"
+ "uniform sampler2D tex;\n"
+ "varying mediump float angle;\n"
+ "void main(void)\n"
+ "{\n"
+ " highp vec3 color = texture2D(tex, texc.st).rgb;\n"
+ " color = color * 0.2 + color * 0.8 * angle;\n"
+ " gl_FragColor = vec4(clamp(color, 0.0, 1.0), 1.0);\n"
+ "}\n"
+ };
+ glShaderSource(fshader2, 1, fsrc2, 0);
+ glCompileShader(fshader2);
+ reportCompileErrors(fshader2, fsrc2[0]);
+
+ program2 = glCreateProgram();
+ glAttachShader(program2, vshader2);
+ glAttachShader(program2, fshader2);
+ glLinkProgram(program2);
+ reportLinkErrors(program2, vsrc2[0], fsrc2[0]);
+
+ vertexAttr2 = glGetAttribLocation(program2, "vertex");
+ normalAttr2 = glGetAttribLocation(program2, "normal");
+ texCoordAttr2 = glGetAttribLocation(program2, "texCoord");
+ matrixUniform2 = glGetUniformLocation(program2, "matrix");
+ textureUniform2 = glGetUniformLocation(program2, "tex");
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+
+ m_fAngle = 0;
+ m_fScale = 1;
+ createGeometry();
+ createBubbles(bubbleNum - bubbles.count());
+}
+
+void GLWidget::paintGL()
+{
+ createBubbles(bubbleNum - bubbles.count());
+
+ QPainter painter;
+ painter.begin(this);
+
+ glClearColor(0.1f, 0.1f, 0.2f, 1.0f);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glEnable(GL_TEXTURE_2D);
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
+
+ glFrontFace(GL_CW);
+ glCullFace(GL_FRONT);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_DEPTH_TEST);
+
+ GLfloat modelview[16];
+ IdentityMatrix(modelview);
+ RotateMatrix(modelview, m_fAngle, 0.0, 1.0, 0.0);
+ RotateMatrix(modelview, m_fAngle, 1.0, 0.0, 0.0);
+ RotateMatrix(modelview, m_fAngle, 0.0, 0.0, 1.0);
+ ScaleMatrix(modelview, m_fScale, m_fScale, m_fScale);
+ TranslateMatrix(modelview, 0, -0.2, 0);
+
+ if (qtLogo) {
+ glUseProgram(program1);
+ glUniformMatrix4fv(matrixUniform1, 1, GL_FALSE, modelview);
+ paintQtLogo();
+ glUseProgram(0);
+ } else {
+ glUseProgram(program2);
+ glUniformMatrix4fv(matrixUniform2, 1, GL_FALSE, modelview);
+ paintTexturedCube();
+ glUseProgram(0);
+ }
+
+ glDisable(GL_DEPTH_TEST);
+ glDisable(GL_CULL_FACE);
+
+ if (m_showBubbles)
+ foreach (Bubble *bubble, bubbles) {
+ bubble->drawBubble(&painter);
+ }
+
+ QString framesPerSecond;
+ framesPerSecond.setNum(frames /(time.elapsed() / 1000.0), 'f', 2);
+
+ painter.setPen(Qt::white);
+
+ painter.drawText(20, 40, framesPerSecond + " fps");
+
+ painter.end();
+
+ swapBuffers();
+
+ QMutableListIterator<Bubble*> iter(bubbles);
+
+ while (iter.hasNext()) {
+ Bubble *bubble = iter.next();
+ bubble->move(rect());
+ }
+ if (!(frames % 100)) {
+ time.start();
+ frames = 0;
+ }
+ m_fAngle += 1.0f;
+ frames ++;
+}
+
+void GLWidget::createBubbles(int number)
+{
+ for (int i = 0; i < number; ++i) {
+ QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))),
+ height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))));
+ qreal radius = qMin(width(), height())*(0.0175 + 0.0875*qrand()/(RAND_MAX+1.0));
+ QPointF velocity(width()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)),
+ height()*0.0175*(-0.5 + qrand()/(RAND_MAX+1.0)));
+
+ bubbles.append(new Bubble(position, radius, velocity));
+ }
+}
+
+void GLWidget::createGeometry()
+{
+ vertices.clear();
+ normals.clear();
+
+ qreal x1 = +0.06f;
+ qreal y1 = -0.14f;
+ qreal x2 = +0.14f;
+ qreal y2 = -0.06f;
+ qreal x3 = +0.08f;
+ qreal y3 = +0.00f;
+ qreal x4 = +0.30f;
+ qreal y4 = +0.22f;
+
+ quad(x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(x3, y3, x4, y4, y4, x4, y3, x3);
+
+ extrude(x1, y1, x2, y2);
+ extrude(x2, y2, y2, x2);
+ extrude(y2, x2, y1, x1);
+ extrude(y1, x1, x1, y1);
+ extrude(x3, y3, x4, y4);
+ extrude(x4, y4, y4, x4);
+ extrude(y4, x4, y3, x3);
+
+ const qreal Pi = 3.14159f;
+ const int NumSectors = 100;
+
+ for (int i = 0; i < NumSectors; ++i) {
+ qreal angle1 = (i * 2 * Pi) / NumSectors;
+ qreal x5 = 0.30 * sin(angle1);
+ qreal y5 = 0.30 * cos(angle1);
+ qreal x6 = 0.20 * sin(angle1);
+ qreal y6 = 0.20 * cos(angle1);
+
+ qreal angle2 = ((i + 1) * 2 * Pi) / NumSectors;
+ qreal x7 = 0.20 * sin(angle2);
+ qreal y7 = 0.20 * cos(angle2);
+ qreal x8 = 0.30 * sin(angle2);
+ qreal y8 = 0.30 * cos(angle2);
+
+ quad(x5, y5, x6, y6, x7, y7, x8, y8);
+
+ extrude(x6, y6, x7, y7);
+ extrude(x8, y8, x5, y5);
+ }
+
+ m_vertexNumber = vertices.size();
+ createdVertices = new GLfloat[m_vertexNumber];
+ createdNormals = new GLfloat[m_vertexNumber];
+ for (int i = 0;i < m_vertexNumber;i++) {
+ createdVertices[i] = vertices.at(i) * 2;
+ createdNormals[i] = normals.at(i);
+ }
+ vertices.clear();
+ normals.clear();
+}
+
+void GLWidget::quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4)
+{
+ qreal nx, ny, nz;
+
+ vertices << x1 << y1 << -0.05f;
+ vertices << x2 << y2 << -0.05f;
+ vertices << x4 << y4 << -0.05f;
+
+ vertices << x3 << y3 << -0.05f;
+ vertices << x4 << y4 << -0.05f;
+ vertices << x2 << y2 << -0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0, x4 - x1, y4 - y1, 0);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ vertices << x4 << y4 << 0.05f;
+ vertices << x2 << y2 << 0.05f;
+ vertices << x1 << y1 << 0.05f;
+
+ vertices << x2 << y2 << 0.05f;
+ vertices << x4 << y4 << 0.05f;
+ vertices << x3 << y3 << 0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x4, y2 - y4, 0, x1 - x4, y1 - y4, 0);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+}
+
+void GLWidget::extrude(qreal x1, qreal y1, qreal x2, qreal y2)
+{
+ qreal nx, ny, nz;
+
+ vertices << x1 << y1 << +0.05f;
+ vertices << x2 << y2 << +0.05f;
+ vertices << x1 << y1 << -0.05f;
+
+ vertices << x2 << y2 << -0.05f;
+ vertices << x1 << y1 << -0.05f;
+ vertices << x2 << y2 << +0.05f;
+
+ CrossProduct(nx, ny, nz, x2 - x1, y2 - y1, 0.0f, 0.0f, 0.0f, -0.1f);
+ Normalize(nx, ny, nz);
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+ normals << nx << ny << nz;
+}
diff --git a/examples/opengl/hellogl_es2/glwidget.h b/examples/opengl/hellogl_es2/glwidget.h
new file mode 100644
index 0000000000..9a7823a493
--- /dev/null
+++ b/examples/opengl/hellogl_es2/glwidget.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+#include <QTime>
+
+class Bubble;
+class GLWidget : public QGLWidget {
+
+ Q_OBJECT
+public:
+ GLWidget(QWidget *parent = 0);
+ ~GLWidget();
+public slots:
+ void setScaling(int scale);
+ void setLogo();
+ void setTexture();
+ void showBubbles(bool);
+protected:
+ void paintGL ();
+ void initializeGL ();
+private:
+ GLuint m_uiTexture;
+ qreal m_fAngle;
+ qreal m_fScale;
+ bool m_showBubbles;
+ void paintTexturedCube();
+ void paintQtLogo();
+ void createGeometry();
+ void createBubbles(int number);
+ void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
+ void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
+ QList<qreal> vertices;
+ QList<qreal> normals;
+ GLfloat *createdVertices;
+ GLfloat *createdNormals;
+ int m_vertexNumber;
+ bool qtLogo;
+ QList<Bubble*> bubbles;
+ int frames;
+ QTime time;
+ GLuint program1;
+ GLuint program2;
+ GLuint vertexAttr1;
+ GLuint normalAttr1;
+ GLuint matrixUniform1;
+ GLuint vertexAttr2;
+ GLuint normalAttr2;
+ GLuint texCoordAttr2;
+ GLuint matrixUniform2;
+ GLuint textureUniform2;
+};
+#endif
diff --git a/examples/opengl/hellogl_es2/hellogl_es2.pro b/examples/opengl/hellogl_es2/hellogl_es2.pro
new file mode 100644
index 0000000000..92b42248de
--- /dev/null
+++ b/examples/opengl/hellogl_es2/hellogl_es2.pro
@@ -0,0 +1,27 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Thu Oct 4 19:01:12 2007
+######################################################################
+
+TEMPLATE = app
+TARGET =
+DEPENDPATH += .
+INCLUDEPATH += .
+
+# Input
+SOURCES += main.cpp
+SOURCES += glwidget.cpp
+SOURCES += mainwindow.cpp
+SOURCES += bubble.cpp
+
+HEADERS += glwidget.h
+HEADERS += mainwindow.h
+HEADERS += bubble.h
+
+RESOURCES += texture.qrc
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl_es2
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS hellogl_es2.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/hellogl_es2
+INSTALLS += target sources
diff --git a/examples/opengl/hellogl_es2/main.cpp b/examples/opengl/hellogl_es2/main.cpp
new file mode 100644
index 0000000000..feff054783
--- /dev/null
+++ b/examples/opengl/hellogl_es2/main.cpp
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include <QMainWindow>
+#include "mainwindow.h"
+
+int main( int argc, char ** argv )
+{
+ Q_INIT_RESOURCE(texture);
+ QApplication a( argc, argv );
+ MainWindow mw;
+ mw.showMaximized();
+ return a.exec();
+}
diff --git a/examples/opengl/hellogl_es2/mainwindow.cpp b/examples/opengl/hellogl_es2/mainwindow.cpp
new file mode 100644
index 0000000000..26fbeaa31b
--- /dev/null
+++ b/examples/opengl/hellogl_es2/mainwindow.cpp
@@ -0,0 +1,108 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "mainwindow.h"
+
+#include <QApplication>
+#include <QMenuBar>
+#include <QGroupBox>
+#include <QGridLayout>
+#include <QSlider>
+#include <QLabel>
+#include <QTimer>
+
+#include "glwidget.h"
+
+MainWindow::MainWindow()
+{
+ GLWidget *glwidget = new GLWidget();
+ QLabel *label = new QLabel(this);
+ QTimer *timer = new QTimer(this);
+ QSlider *slider = new QSlider(this);
+ slider->setOrientation(Qt::Horizontal);
+
+ slider->setRange(0, 100);
+ slider->setSliderPosition(50);
+ timer->setInterval(10);
+ label->setText("A QGlWidget with OpenGl ES");
+ label->setAlignment(Qt::AlignHCenter);
+
+ QGroupBox * groupBox = new QGroupBox(this);
+ setCentralWidget(groupBox);
+ groupBox->setTitle("OpenGL ES Example");
+
+ QGridLayout *layout = new QGridLayout(groupBox);
+
+ layout->addWidget(glwidget,1,0,8,1);
+ layout->addWidget(label,9,0,1,1);
+ layout->addWidget(slider, 11,0,1,1);
+
+ groupBox->setLayout(layout);
+
+ QMenu *fileMenu = new QMenu("File");
+ QMenu *helpMenu = new QMenu("Help");
+ QMenu *showMenu = new QMenu("Show");
+ menuBar()->addMenu(fileMenu);
+ menuBar()->addMenu(showMenu);
+ menuBar()->addMenu(helpMenu);
+ QAction *exit = new QAction("Exit", fileMenu);
+ QAction *aboutQt = new QAction("AboutQt", helpMenu);
+ QAction *showLogo = new QAction("Show 3D Logo", showMenu);
+ QAction *showTexture = new QAction("Show 2D Texture", showMenu);
+ QAction *showBubbles = new QAction("Show bubbles", showMenu);
+ showBubbles->setCheckable(true);
+ showBubbles->setChecked(true);
+ fileMenu->addAction(exit);
+ helpMenu->addAction(aboutQt);
+ showMenu->addAction(showLogo);
+ showMenu->addAction(showTexture);
+ showMenu->addAction(showBubbles);
+
+ QObject::connect(timer, SIGNAL(timeout()), glwidget, SLOT(updateGL()));
+ QObject::connect(exit, SIGNAL(triggered(bool)), this, SLOT(close()));
+ QObject::connect(aboutQt, SIGNAL(triggered(bool)), qApp, SLOT(aboutQt()));
+
+ QObject::connect(showLogo, SIGNAL(triggered(bool)), glwidget, SLOT(setLogo()));
+ QObject::connect(showTexture, SIGNAL(triggered(bool)), glwidget, SLOT(setTexture()));
+ QObject::connect(showBubbles, SIGNAL(triggered(bool)), glwidget, SLOT(showBubbles(bool)));
+ QObject::connect(slider, SIGNAL(valueChanged(int)), glwidget, SLOT(setScaling(int)));
+ timer->start();
+}
diff --git a/examples/opengl/hellogl_es2/mainwindow.h b/examples/opengl/hellogl_es2/mainwindow.h
new file mode 100644
index 0000000000..72b723c7b6
--- /dev/null
+++ b/examples/opengl/hellogl_es2/mainwindow.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+class QSlider;
+class GLWidget;
+
+class MainWindow : public QMainWindow
+{
+ Q_OBJECT
+
+public:
+ MainWindow();
+
+private:
+};
+
+#endif
diff --git a/examples/opengl/hellogl_es2/qt.png b/examples/opengl/hellogl_es2/qt.png
new file mode 100644
index 0000000000..79e383cf50
--- /dev/null
+++ b/examples/opengl/hellogl_es2/qt.png
Binary files differ
diff --git a/examples/opengl/hellogl_es2/texture.qrc b/examples/opengl/hellogl_es2/texture.qrc
new file mode 100644
index 0000000000..ff1d0e535f
--- /dev/null
+++ b/examples/opengl/hellogl_es2/texture.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>qt.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/opengl.pro b/examples/opengl/opengl.pro
new file mode 100644
index 0000000000..a4c2a22365
--- /dev/null
+++ b/examples/opengl/opengl.pro
@@ -0,0 +1,29 @@
+TEMPLATE = subdirs
+
+contains(QT_CONFIG, opengles1)|contains(QT_CONFIG, opengles1cl)|contains(QT_CONFIG, opengles2){
+ contains(QT_CONFIG, opengles2) {
+ SUBDIRS = hellogl_es2
+ } else {
+ SUBDIRS = hellogl_es
+ }
+} else {
+ SUBDIRS = 2dpainting \
+ grabber \
+ hellogl \
+ overpainting \
+ pbuffers \
+ framebufferobject2 \
+ samplebuffers \
+ textures
+
+ contains(QT_CONFIG, svg) {
+ SUBDIRS += framebufferobject \
+ pbuffers2
+ }
+}
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS opengl.pro README
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl
+INSTALLS += target sources
diff --git a/examples/opengl/overpainting/bubble.cpp b/examples/opengl/overpainting/bubble.cpp
new file mode 100644
index 0000000000..8bbe9b0015
--- /dev/null
+++ b/examples/opengl/overpainting/bubble.cpp
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "bubble.h"
+
+Bubble::Bubble(const QPointF &position, qreal radius, const QPointF &velocity)
+ : position(position), vel(velocity), radius(radius)
+{
+ innerColor = randomColor();
+ outerColor = randomColor();
+ updateBrush();
+}
+
+void Bubble::updateBrush()
+{
+ QRadialGradient gradient(QPointF(radius, radius), radius,
+ QPointF(radius*0.5, radius*0.5));
+
+ gradient.setColorAt(0, QColor(255, 255, 255, 255));
+ gradient.setColorAt(0.25, innerColor);
+ gradient.setColorAt(1, outerColor);
+ brush = QBrush(gradient);
+}
+
+void Bubble::drawBubble(QPainter *painter)
+{
+ painter->save();
+ painter->translate(position.x() - radius, position.y() - radius);
+ painter->setBrush(brush);
+ painter->drawEllipse(0, 0, int(2*radius), int(2*radius));
+ painter->restore();
+}
+
+QColor Bubble::randomColor()
+{
+ int red = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
+ int green = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
+ int blue = int(205 + 50.0*qrand()/(RAND_MAX+1.0));
+ int alpha = int(91 + 100.0*qrand()/(RAND_MAX+1.0));
+
+ return QColor(red, green, blue, alpha);
+}
+
+void Bubble::move(const QRect &bbox)
+{
+ position += vel;
+ qreal leftOverflow = position.x() - radius - bbox.left();
+ qreal rightOverflow = position.x() + radius - bbox.right();
+ qreal topOverflow = position.y() - radius - bbox.top();
+ qreal bottomOverflow = position.y() + radius - bbox.bottom();
+
+ if (leftOverflow < 0.0) {
+ position.setX(position.x() - 2 * leftOverflow);
+ vel.setX(-vel.x());
+ } else if (rightOverflow > 0.0) {
+ position.setX(position.x() - 2 * rightOverflow);
+ vel.setX(-vel.x());
+ }
+
+ if (topOverflow < 0.0) {
+ position.setY(position.y() - 2 * topOverflow);
+ vel.setY(-vel.y());
+ } else if (bottomOverflow > 0.0) {
+ position.setY(position.y() - 2 * bottomOverflow);
+ vel.setY(-vel.y());
+ }
+}
+
+QRectF Bubble::rect()
+{
+ return QRectF(position.x() - radius, position.y() - radius,
+ 2 * radius, 2 * radius);
+}
diff --git a/examples/opengl/overpainting/bubble.h b/examples/opengl/overpainting/bubble.h
new file mode 100644
index 0000000000..7e715503dd
--- /dev/null
+++ b/examples/opengl/overpainting/bubble.h
@@ -0,0 +1,76 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef BUBBLE_H
+#define BUBBLE_H
+
+#include <QBrush>
+#include <QColor>
+#include <QPointF>
+#include <QRect>
+#include <QRectF>
+
+QT_BEGIN_NAMESPACE
+class QPainter;
+QT_END_NAMESPACE
+
+class Bubble
+{
+public:
+ Bubble(const QPointF &position, qreal radius, const QPointF &velocity);
+
+ void drawBubble(QPainter *painter);
+ void updateBrush();
+ void move(const QRect &bbox);
+ QRectF rect();
+
+private:
+ QColor randomColor();
+
+ QBrush brush;
+ QPointF position;
+ QPointF vel;
+ qreal radius;
+ QColor innerColor;
+ QColor outerColor;
+};
+
+#endif
diff --git a/examples/opengl/overpainting/glwidget.cpp b/examples/opengl/overpainting/glwidget.cpp
new file mode 100644
index 0000000000..e3a7b1e530
--- /dev/null
+++ b/examples/opengl/overpainting/glwidget.cpp
@@ -0,0 +1,360 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtOpenGL>
+#include <stdlib.h>
+
+#include <math.h>
+
+#include "bubble.h"
+#include "glwidget.h"
+
+#ifndef GL_MULTISAMPLE
+#define GL_MULTISAMPLE 0x809D
+#endif
+
+//! [0]
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+ QTime midnight(0, 0, 0);
+ qsrand(midnight.secsTo(QTime::currentTime()));
+
+ object = 0;
+ xRot = 0;
+ yRot = 0;
+ zRot = 0;
+
+ trolltechGreen = QColor::fromCmykF(0.40, 0.0, 1.0, 0.0);
+ trolltechPurple = QColor::fromCmykF(0.39, 0.39, 0.0, 0.0);
+
+ animationTimer.setSingleShot(false);
+ connect(&animationTimer, SIGNAL(timeout()), this, SLOT(animate()));
+ animationTimer.start(25);
+
+ setAutoFillBackground(false);
+ setMinimumSize(200, 200);
+ setWindowTitle(tr("Overpainting a Scene"));
+}
+//! [0]
+
+//! [1]
+GLWidget::~GLWidget()
+{
+ makeCurrent();
+ glDeleteLists(object, 1);
+}
+//! [1]
+
+void GLWidget::setXRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != xRot)
+ xRot = angle;
+}
+
+void GLWidget::setYRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != yRot)
+ yRot = angle;
+}
+
+void GLWidget::setZRotation(int angle)
+{
+ normalizeAngle(&angle);
+ if (angle != zRot)
+ zRot = angle;
+}
+
+//! [2]
+void GLWidget::initializeGL()
+{
+ object = makeObject();
+}
+//! [2]
+
+void GLWidget::mousePressEvent(QMouseEvent *event)
+{
+ lastPos = event->pos();
+}
+
+void GLWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ int dx = event->x() - lastPos.x();
+ int dy = event->y() - lastPos.y();
+
+ if (event->buttons() & Qt::LeftButton) {
+ setXRotation(xRot + 8 * dy);
+ setYRotation(yRot + 8 * dx);
+ } else if (event->buttons() & Qt::RightButton) {
+ setXRotation(xRot + 8 * dy);
+ setZRotation(zRot + 8 * dx);
+ }
+ lastPos = event->pos();
+}
+
+void GLWidget::paintEvent(QPaintEvent *event)
+{
+ makeCurrent();
+//! [4]
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+//! [4]
+
+//! [6]
+ qglClearColor(trolltechPurple.dark());
+ glShadeModel(GL_SMOOTH);
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_MULTISAMPLE);
+ static GLfloat lightPosition[4] = { 0.5, 5.0, 7.0, 1.0 };
+ glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
+
+ setupViewport(width(), height());
+//! [6]
+
+//! [7]
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glLoadIdentity();
+ glTranslated(0.0, 0.0, -10.0);
+ glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
+ glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
+ glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
+ glCallList(object);
+//! [7]
+
+//! [8]
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+//! [8]
+
+//! [10]
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+ foreach (Bubble *bubble, bubbles) {
+ if (bubble->rect().intersects(event->rect()))
+ bubble->drawBubble(&painter);
+ }
+ drawInstructions(&painter);
+ painter.end();
+}
+//! [10]
+
+//! [11]
+void GLWidget::resizeGL(int width, int height)
+{
+ setupViewport(width, height);
+}
+//! [11]
+
+//! [12]
+void GLWidget::showEvent(QShowEvent *event)
+{
+ Q_UNUSED(event);
+ createBubbles(20 - bubbles.count());
+}
+//! [12]
+
+QSize GLWidget::sizeHint() const
+{
+ return QSize(400, 400);
+}
+
+GLuint GLWidget::makeObject()
+{
+ GLuint list = glGenLists(1);
+ glNewList(list, GL_COMPILE);
+
+ glEnable(GL_NORMALIZE);
+ glBegin(GL_QUADS);
+
+ static GLfloat logoDiffuseColor[4] = {trolltechGreen.red()/255.0,
+ trolltechGreen.green()/255.0,
+ trolltechGreen.blue()/255.0, 1.0};
+ glMaterialfv(GL_FRONT, GL_DIFFUSE, logoDiffuseColor);
+
+ GLdouble x1 = +0.06;
+ GLdouble y1 = -0.14;
+ GLdouble x2 = +0.14;
+ GLdouble y2 = -0.06;
+ GLdouble x3 = +0.08;
+ GLdouble y3 = +0.00;
+ GLdouble x4 = +0.30;
+ GLdouble y4 = +0.22;
+
+ quad(x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(x3, y3, x4, y4, y4, x4, y3, x3);
+
+ extrude(x1, y1, x2, y2);
+ extrude(x2, y2, y2, x2);
+ extrude(y2, x2, y1, x1);
+ extrude(y1, x1, x1, y1);
+ extrude(x3, y3, x4, y4);
+ extrude(x4, y4, y4, x4);
+ extrude(y4, x4, y3, x3);
+
+ const double Pi = 3.14159265358979323846;
+ const int NumSectors = 200;
+
+ for (int i = 0; i < NumSectors; ++i) {
+ double angle1 = (i * 2 * Pi) / NumSectors;
+ GLdouble x5 = 0.30 * sin(angle1);
+ GLdouble y5 = 0.30 * cos(angle1);
+ GLdouble x6 = 0.20 * sin(angle1);
+ GLdouble y6 = 0.20 * cos(angle1);
+
+ double angle2 = ((i + 1) * 2 * Pi) / NumSectors;
+ GLdouble x7 = 0.20 * sin(angle2);
+ GLdouble y7 = 0.20 * cos(angle2);
+ GLdouble x8 = 0.30 * sin(angle2);
+ GLdouble y8 = 0.30 * cos(angle2);
+
+ quad(x5, y5, x6, y6, x7, y7, x8, y8);
+
+ extrude(x6, y6, x7, y7);
+ extrude(x8, y8, x5, y5);
+ }
+
+ glEnd();
+
+ glEndList();
+ return list;
+}
+
+void GLWidget::quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4)
+{
+ glNormal3d(0.0, 0.0, -1.0);
+ glVertex3d(x1, y1, -0.05);
+ glVertex3d(x2, y2, -0.05);
+ glVertex3d(x3, y3, -0.05);
+ glVertex3d(x4, y4, -0.05);
+
+ glNormal3d(0.0, 0.0, 1.0);
+ glVertex3d(x4, y4, +0.05);
+ glVertex3d(x3, y3, +0.05);
+ glVertex3d(x2, y2, +0.05);
+ glVertex3d(x1, y1, +0.05);
+}
+
+void GLWidget::extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2)
+{
+ qglColor(trolltechGreen.dark(250 + int(100 * x1)));
+
+ glNormal3d((x1 + x2)/2.0, (y1 + y2)/2.0, 0.0);
+ glVertex3d(x1, y1, +0.05);
+ glVertex3d(x2, y2, +0.05);
+ glVertex3d(x2, y2, -0.05);
+ glVertex3d(x1, y1, -0.05);
+}
+
+void GLWidget::normalizeAngle(int *angle)
+{
+ while (*angle < 0)
+ *angle += 360 * 16;
+ while (*angle > 360 * 16)
+ *angle -= 360 * 16;
+}
+
+void GLWidget::createBubbles(int number)
+{
+ for (int i = 0; i < number; ++i) {
+ QPointF position(width()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))),
+ height()*(0.1 + (0.8*qrand()/(RAND_MAX+1.0))));
+ qreal radius = qMin(width(), height())*(0.0125 + 0.0875*qrand()/(RAND_MAX+1.0));
+ QPointF velocity(width()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0)),
+ height()*0.0125*(-0.5 + qrand()/(RAND_MAX+1.0)));
+
+ bubbles.append(new Bubble(position, radius, velocity));
+ }
+}
+
+//! [13]
+void GLWidget::animate()
+{
+ QMutableListIterator<Bubble*> iter(bubbles);
+
+ while (iter.hasNext()) {
+ Bubble *bubble = iter.next();
+ bubble->move(rect());
+ }
+ update();
+}
+//! [13]
+
+//! [14]
+void GLWidget::setupViewport(int width, int height)
+{
+ int side = qMin(width, height);
+ glViewport((width - side) / 2, (height - side) / 2, side, side);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+//! [14]
+
+//! [15]
+void GLWidget::drawInstructions(QPainter *painter)
+{
+ QString text = tr("Click and drag with the left mouse button "
+ "to rotate the Qt logo.");
+ QFontMetrics metrics = QFontMetrics(font());
+ int border = qMax(4, metrics.leading());
+
+ QRect rect = metrics.boundingRect(0, 0, width() - 2*border, int(height()*0.125),
+ Qt::AlignCenter | Qt::TextWordWrap, text);
+ painter->setRenderHint(QPainter::TextAntialiasing);
+ painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border),
+ QColor(0, 0, 0, 127));
+ painter->setPen(Qt::white);
+ painter->fillRect(QRect(0, 0, width(), rect.height() + 2*border),
+ QColor(0, 0, 0, 127));
+ painter->drawText((width() - rect.width())/2, border,
+ rect.width(), rect.height(),
+ Qt::AlignCenter | Qt::TextWordWrap, text);
+}
+//! [15]
diff --git a/examples/opengl/overpainting/glwidget.h b/examples/opengl/overpainting/glwidget.h
new file mode 100644
index 0000000000..f1b49c1c18
--- /dev/null
+++ b/examples/opengl/overpainting/glwidget.h
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QBrush>
+#include <QFont>
+#include <QImage>
+#include <QPen>
+#include <QGLWidget>
+#include <QTimer>
+
+class Bubble;
+QT_BEGIN_NAMESPACE
+class QPaintEvent;
+class QWidget;
+QT_END_NAMESPACE
+
+//! [0]
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent = 0);
+ ~GLWidget();
+//! [0]
+
+ QSize sizeHint() const;
+ int xRotation() const { return xRot; }
+ int yRotation() const { return yRot; }
+ int zRotation() const { return zRot; }
+
+public slots:
+ void setXRotation(int angle);
+ void setYRotation(int angle);
+ void setZRotation(int angle);
+
+//! [1]
+protected:
+ void initializeGL();
+ void paintEvent(QPaintEvent *event);
+ void resizeGL(int width, int height);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+ void showEvent(QShowEvent *event);
+
+private slots:
+ void animate();
+
+private:
+ GLuint makeObject();
+ void createBubbles(int number);
+ void drawInstructions(QPainter *painter);
+//! [1]
+ void extrude(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2);
+ void normalizeAngle(int *angle);
+ void quad(GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4);
+ void setupViewport(int width, int height);
+
+ GLuint object;
+ int xRot;
+ int yRot;
+ int zRot;
+ QPoint lastPos;
+ QColor trolltechGreen;
+ QColor trolltechPurple;
+//! [4]
+ QList<Bubble*> bubbles;
+ QTimer animationTimer;
+};
+//! [4]
+
+#endif
diff --git a/examples/opengl/overpainting/main.cpp b/examples/opengl/overpainting/main.cpp
new file mode 100644
index 0000000000..c1b17df90e
--- /dev/null
+++ b/examples/opengl/overpainting/main.cpp
@@ -0,0 +1,51 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+#include "glwidget.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ GLWidget window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/opengl/overpainting/overpainting.pro b/examples/opengl/overpainting/overpainting.pro
new file mode 100644
index 0000000000..b8e79eb651
--- /dev/null
+++ b/examples/opengl/overpainting/overpainting.pro
@@ -0,0 +1,13 @@
+QT += opengl
+
+HEADERS = bubble.h \
+ glwidget.h
+SOURCES = bubble.cpp \
+ glwidget.cpp \
+ main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/overpainting
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS overpainting.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/overpainting
+INSTALLS += target sources
diff --git a/examples/opengl/pbuffers/cubelogo.png b/examples/opengl/pbuffers/cubelogo.png
new file mode 100644
index 0000000000..3ae0f9ba3f
--- /dev/null
+++ b/examples/opengl/pbuffers/cubelogo.png
Binary files differ
diff --git a/examples/opengl/pbuffers/glwidget.cpp b/examples/opengl/pbuffers/glwidget.cpp
new file mode 100644
index 0000000000..4dfbcf47be
--- /dev/null
+++ b/examples/opengl/pbuffers/glwidget.cpp
@@ -0,0 +1,260 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <QtGui/QImage>
+
+#include <math.h>
+
+static GLint cubeArray[][3] = {
+ {0, 0, 0}, {0, 1, 0}, {1, 1, 0}, {1, 0, 0},
+ {0, 0, 1}, {1, 0, 1}, {1, 1, 1}, {0, 1, 1},
+ {0, 0, 0}, {1, 0, 0}, {1, 0, 1}, {0, 0, 1},
+ {0, 1, 0}, {0, 1, 1}, {1, 1, 1}, {1, 1, 0},
+ {0, 1, 0}, {0, 0, 0}, {0, 0, 1}, {0, 1, 1},
+ {1, 0, 0}, {1, 1, 0}, {1, 1, 1}, {1, 0, 1}
+};
+
+static GLint cubeTextureArray[][2] = {
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {0, 0}, {0, 1}, {1, 1}, {1, 0},
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {1, 0}, {0, 0}, {0, 1}, {1, 1},
+ {0, 0}, {1, 0}, {1, 1}, {0, 1},
+ {1, 0}, {0, 0}, {0, 1}, {1, 1}
+};
+
+static GLint faceArray[][2] = {
+ {1, -1}, {1, 1}, {-1, 1}, {-1, -1}
+};
+
+static GLubyte colorArray[][4] = {
+ {102, 176, 54, 255},
+ {81, 141, 41, 255},
+ {62, 108, 32, 255},
+ {45, 79, 23, 255}
+};
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+ // create the pbuffer
+ pbuffer = new QGLPixelBuffer(QSize(512, 512), format(), this);
+ timerId = startTimer(20);
+ setWindowTitle(tr("OpenGL pbuffers"));
+}
+
+GLWidget::~GLWidget()
+{
+ pbuffer->releaseFromDynamicTexture();
+ glDeleteTextures(1, &dynamicTexture);
+ glDeleteLists(pbufferList, 1);
+ delete pbuffer;
+}
+
+void GLWidget::initializeGL()
+{
+ glMatrixMode(GL_MODELVIEW);
+
+ glEnable(GL_CULL_FACE);
+ initCommon();
+ initPbuffer();
+
+ for (int i = 0; i < 3; ++i) {
+ yOffs[i] = 0.0f;
+ xInc[i] = 0.005f;
+ rot[i] = 0.0f;
+ }
+ xOffs[0]= 0.0f;
+ xOffs[1]= 0.5f;
+ xOffs[2]= 1.0f;
+
+ cubeTexture = bindTexture(QImage(":res/cubelogo.png"));
+}
+
+void GLWidget::resizeGL(int w, int h)
+{
+ glViewport(0, 0, w, h);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ float aspect = w/(float)(h ? h : 1);
+ glFrustum(-aspect, aspect, -1, 1, 10, 100);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+ glTranslatef(0.0f, 0.0f, -15.0f);
+}
+
+void GLWidget::paintGL()
+{
+ // draw a spinning cube into the pbuffer..
+ pbuffer->makeCurrent();
+ glBindTexture(GL_TEXTURE_2D, cubeTexture);
+ glCallList(pbufferList);
+ glFlush();
+
+ // rendering directly to a texture is not supported on X11 and
+ // some Windows implementations, unfortunately
+ if (!hasDynamicTextureUpdate)
+ pbuffer->updateDynamicTexture(dynamicTexture);
+
+ // ..and use the pbuffer contents as a texture when rendering the
+ // background and the bouncing cubes
+ makeCurrent();
+ glBindTexture(GL_TEXTURE_2D, dynamicTexture);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ // draw the background
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glLoadIdentity();
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+
+ glVertexPointer(2, GL_INT, 0, faceArray);
+ glTranslatef(-1.2f, -0.8f, 0.0f);
+ glScalef(0.2f, 0.2f, 0.2f);
+ for (int y = 0; y < 5; ++y) {
+ for (int x = 0; x < 5; ++x) {
+ glTranslatef(2.0f, 0, 0);
+ glColor4f(0.8, 0.8, 0.8, 1.0);
+ glDrawArrays(GL_QUADS, 0, 4);
+ }
+ glTranslatef(-10.0f, 2.0f, 0);
+ }
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+
+ // draw the bouncing cubes
+ drawCube(0, 0.0f, 1.5f, 2.5f, 1.5f);
+ drawCube(1, 1.0f, 2.0f, 2.5f, 2.0f);
+ drawCube(2, 2.0f, 3.5f, 2.5f, 2.5f);
+}
+
+void GLWidget::drawCube(int i, GLfloat z, GLfloat rotation, GLfloat jmp, GLfloat amp)
+{
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(xOffs[i], yOffs[i], z);
+ glTranslatef(0.5f, 0.5f, 0.5f);
+ GLfloat scale = 0.75 + i*(0.25f/2);
+ glScalef(scale, scale, scale);
+ glRotatef(rot[i], 1.0f, 1.0f, 1.0f);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+
+ glColor4f(1.0f, 1.0f, 1.0f, 0.8f);
+ glDrawArrays(GL_QUADS, 0, 24);
+
+ if (xOffs[i] > 1.0f || xOffs[i] < -1.0f) {
+ xInc[i] = -xInc[i];
+ xOffs[i] = xOffs[i] > 1.0f ? 1.0f : -1.0f;
+ }
+ xOffs[i] += xInc[i];
+ yOffs[i] = qAbs(cos((-3.141592f * jmp) * xOffs[i]) * amp) - 1;
+ rot[i] += rotation;
+}
+
+void GLWidget::initCommon()
+{
+ glEnableClientState(GL_VERTEX_ARRAY);
+ glEnableClientState(GL_TEXTURE_COORD_ARRAY);
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+ glTexCoordPointer(2, GL_INT, 0, cubeTextureArray);
+ glColorPointer(4, GL_UNSIGNED_BYTE, 0, colorArray);
+
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glEnable(GL_BLEND);
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_DEPTH_TEST);
+
+ glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+}
+
+void GLWidget::initPbuffer()
+{
+ // set up the pbuffer context
+ pbuffer->makeCurrent();
+ initCommon();
+
+ glViewport(0, 0, pbuffer->size().width(), pbuffer->size().height());
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1, 1, -1, 1, -99, 99);
+ glTranslatef(-0.5f, -0.5f, 0.0f);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+
+ pbufferList = glGenLists(1);
+ glNewList(pbufferList, GL_COMPILE);
+ {
+ glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+
+ // draw cube background
+ glPushMatrix();
+ glLoadIdentity();
+ glTranslatef(0.5f, 0.5f, -2.0f);
+ glDisable(GL_TEXTURE_2D);
+ glEnableClientState(GL_COLOR_ARRAY);
+ glVertexPointer(2, GL_INT, 0, faceArray);
+ glDrawArrays(GL_QUADS, 0, 4);
+ glVertexPointer(3, GL_INT, 0, cubeArray);
+ glDisableClientState(GL_COLOR_ARRAY);
+ glEnable(GL_TEXTURE_2D);
+ glPopMatrix();
+
+ // draw cube
+ glTranslatef(0.5f, 0.5f, 0.5f);
+ glRotatef(3.0f, 1.0f, 1.0f, 1.0f);
+ glTranslatef(-0.5f, -0.5f, -0.5f);
+ glColor4f(0.9f, 0.9f, 0.9f, 1.0f);
+ glDrawArrays(GL_QUADS, 0, 24);
+ }
+ glEndList();
+ // generate a texture that has the same size/format as the pbuffer
+ dynamicTexture = pbuffer->generateDynamicTexture();
+
+ // bind the dynamic texture to the pbuffer - this is a no-op under X11
+ hasDynamicTextureUpdate = pbuffer->bindToDynamicTexture(dynamicTexture);
+ makeCurrent();
+}
+
diff --git a/examples/opengl/pbuffers/glwidget.h b/examples/opengl/pbuffers/glwidget.h
new file mode 100644
index 0000000000..9f2e86cc2d
--- /dev/null
+++ b/examples/opengl/pbuffers/glwidget.h
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtOpenGL>
+
+class GLWidget : public QGLWidget
+{
+public:
+ GLWidget(QWidget *parent);
+ ~GLWidget();
+ void initializeGL();
+ void resizeGL(int w, int h);
+ void paintGL();
+ void timerEvent(QTimerEvent *) { update(); }
+ void mousePressEvent(QMouseEvent *) { killTimer(timerId); }
+ void mouseReleaseEvent(QMouseEvent *) { timerId = startTimer(20); }
+
+ void drawCube(int i, GLfloat z, GLfloat ri, GLfloat jmp, GLfloat amp);
+ void initCommon();
+ void initPbuffer();
+
+private:
+ GLfloat rot[3], xOffs[3], yOffs[3], xInc[3];
+ GLuint pbufferList;
+ GLuint dynamicTexture;
+ GLuint cubeTexture;
+ int timerId;
+ bool hasDynamicTextureUpdate;
+
+ QGLPixelBuffer *pbuffer;
+};
+
diff --git a/examples/opengl/pbuffers/main.cpp b/examples/opengl/pbuffers/main.cpp
new file mode 100644
index 0000000000..91799e0e6a
--- /dev/null
+++ b/examples/opengl/pbuffers/main.cpp
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QApplication>
+#include <QtGui/QMessageBox>
+#include "glwidget.h"
+
+int main(int argc, char **argv)
+{
+ Q_INIT_RESOURCE(pbuffers);
+
+ QApplication a(argc, argv);
+ if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) {
+ QMessageBox::information(0, "OpenGL pbuffers",
+ "This system does not support OpenGL/pbuffers.");
+ return -1;
+ }
+
+ GLWidget widget(0);
+ widget.resize(640, 480);
+ widget.show();
+ return a.exec();
+}
+
diff --git a/examples/opengl/pbuffers/pbuffers.pro b/examples/opengl/pbuffers/pbuffers.pro
new file mode 100644
index 0000000000..c1060e2361
--- /dev/null
+++ b/examples/opengl/pbuffers/pbuffers.pro
@@ -0,0 +1,11 @@
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+RESOURCES += pbuffers.qrc
+
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/pbuffers
+sources.files = $$SOURCES $$HEADERS $$RESOURCES pbuffers.pro *.png
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/pbuffers
+INSTALLS += target sources
diff --git a/examples/opengl/pbuffers/pbuffers.qrc b/examples/opengl/pbuffers/pbuffers.qrc
new file mode 100644
index 0000000000..9fc1a56a1a
--- /dev/null
+++ b/examples/opengl/pbuffers/pbuffers.qrc
@@ -0,0 +1,5 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/res">
+ <file>cubelogo.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/pbuffers2/bubbles.svg b/examples/opengl/pbuffers2/bubbles.svg
new file mode 100644
index 0000000000..65867da2d8
--- /dev/null
+++ b/examples/opengl/pbuffers2/bubbles.svg
@@ -0,0 +1,215 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg width="20cm" height="15cm" viewBox="0 0 800 600"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink/"
+ baseProfile="tiny" version="1.2">
+ <title>Spheres</title>
+ <desc>Semi-transparent bubbles on a colored background.</desc>
+ <defs>
+ <!-- Create radial gradients for each bubble. -->
+ <radialGradient id="blueBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#cdcdff" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#cdaacd" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="redBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#ffcdcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#bbbb99" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="greenBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#cdffcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#99aaaa" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="yellowBubble" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" stop-opacity="1" />
+ <stop offset="25%" stop-color="#ffffcd" stop-opacity=".65" />
+ <stop offset="100%" stop-color="#bbbbaa" stop-opacity=".75" />
+ </radialGradient>
+ <radialGradient id="background" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="400" fx="250" fy="250">
+ <stop offset="0%" stop-color="#ffffee" />
+ <stop offset="100%" stop-color="#ccccaa" />
+ </radialGradient>
+ <linearGradient id="surface" gradientUnits="userSpaceOnUse"
+ x1="-100" y1="200" x2="400" y2="200">
+ <stop offset="0%" stop-color="#ffffcc" />
+ <stop offset="100%" stop-color="#bbbb88" />
+ </linearGradient>
+
+ <!-- Create radial gradients for each circle to make them look like
+ spheres. -->
+ <radialGradient id="blueSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="blue" />
+ <stop offset="100%" stop-color="#222244" />
+ </radialGradient>
+ <radialGradient id="redSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="red" />
+ <stop offset="100%" stop-color="#442222" />
+ </radialGradient>
+ <radialGradient id="greenSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="green" />
+ <stop offset="100%" stop-color="#113311" />
+ </radialGradient>
+ <radialGradient id="yellowSphere" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="-50">
+ <stop offset="0%" stop-color="white" />
+ <stop offset="75%" stop-color="yellow" />
+ <stop offset="100%" stop-color="#444422" />
+ </radialGradient>
+ <radialGradient id="shadowGrad" gradientUnits="userSpaceOnUse"
+ cx="0" cy="0" r="100" fx="-50" fy="50">
+ <stop offset="0%" stop-color="black" stop-opacity="1.0" />
+ <stop offset="100%" stop-color="white" stop-opacity="0.0" />
+ </radialGradient>
+
+ <!-- Define a shadow for each sphere. -->
+ <circle id="shadow" fill="url(#shadowGrad)" cx="0" cy="0" r="100" />
+ <g id="bubble">
+ <circle fill="black" cx="0" cy="0" r="50" />
+ <circle fill="#a6ce39" cx="0" cy="0" r="33" />
+ <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10
+ L -11,22 L -1,12 Z" />
+ <circle cx="0" cy="0" r="100" />
+ </g>
+ </defs>
+ <g>
+ <rect fill="url(#background)" x="0" y="0" width="800" height="600" />
+ </g>
+
+ <g transform="translate(200,700)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="10s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(315,700)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="7s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(80,700)">
+ <g transform="scale(0.65,0.65)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="5s" dur="9s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(255,700)">
+ <g transform="scale(0.3,0.3)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="2s" dur="6s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(565,700)">
+ <g transform="scale(0.4,0.4)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="4s" dur="8s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(715,700)">
+ <g transform="scale(0.6,0.6)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="4s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(645,700)">
+ <g transform="scale(0.375,0.375)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="0s" dur="11s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(555,700)">
+ <g transform="scale(0.9,0.9)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="7.5s" fill="freeze" repeatCount="indefinite" />
+ </g>
+
+ <g transform="translate(360,700)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#bubble" fill="url(#blueBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="3s" dur="6s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(215,700)">
+ <g transform="scale(0.45,0.45)">
+ <use xlink:href="#bubble" fill="url(#redBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="5.5s" dur="7s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(420,700)">
+ <g transform="scale(0.75,0.75)">
+ <use xlink:href="#bubble" fill="url(#greenBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="1s" dur="9s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(815,700)">
+ <g transform="scale(0.6,0.6)">
+ <use xlink:href="#bubble" fill="url(#yellowBubble)" />
+ </g>
+ <animateTransform attributeName="transform" type="translate"
+ values="0,0; 0,-800" begin="2s" dur="9.5s" fill="freeze" repeatCount="indefinite" />
+ </g>
+
+ <g transform="translate(225,375)" >
+ <g transform="scale(1.0,0.5)" >
+ <path d="M 0 0 L 350 0 L 450 450 L -100 450 z"
+ fill="url(#surface)" stroke="none" />
+ </g>
+ </g>
+ <g transform="translate(200,0)" >
+ <g transform="translate(200,490) scale(2.0,1.0) rotate(45)" >
+ <rect fill="#a6ce39" x="-69" y="-69" width="138" height="138" />
+ <circle fill="black" cx="0" cy="0" r="50" />
+ <circle fill="#a6ce39" cx="0" cy="0" r="33" />
+ <path fill="black" d="M 37,50 L 50,37 L 12,-1 L 22,-11 L 10,-24 L -24,10
+ L -11,22 L -1,12 Z" />
+ <animateTransform attributeName="transform" type="rotate" values="0; 360"
+ begin="0s" dur="10s" fill="freeze" repeatCount="indefinite" />
+ </g>
+ <g transform="translate(200,375)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#blueSphere)" cx="0" cy="0" r="100" />
+ </g>
+ <g transform="translate(315,440)">
+ <g transform="scale(0.5,0.5)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#redSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ <g transform="translate(80,475)">
+ <g transform="scale(0.65,0.65)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#greenSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ <g transform="translate(255,525)">
+ <g transform="scale(0.3,0.3)">
+ <use xlink:href="#shadow" transform="translate(25,55) scale(1.0,0.5)" />
+ <circle fill="url(#yellowSphere)" cx="0" cy="0" r="100" />
+ </g>
+ </g>
+ </g>
+</svg>
diff --git a/examples/opengl/pbuffers2/designer.png b/examples/opengl/pbuffers2/designer.png
new file mode 100644
index 0000000000..4f32d57496
--- /dev/null
+++ b/examples/opengl/pbuffers2/designer.png
Binary files differ
diff --git a/examples/opengl/pbuffers2/glwidget.cpp b/examples/opengl/pbuffers2/glwidget.cpp
new file mode 100644
index 0000000000..fa37946303
--- /dev/null
+++ b/examples/opengl/pbuffers2/glwidget.cpp
@@ -0,0 +1,326 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QImage>
+#include "glwidget.h"
+
+#include <math.h>
+
+#ifndef GL_MULTISAMPLE
+#define GL_MULTISAMPLE 0x809D
+#endif
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+ setWindowTitle(tr("OpenGL pbuffers 2"));
+
+ pbuffer = new QGLPixelBuffer(1024, 1024, format(), this);
+
+ rot_x = rot_y = rot_z = 0.0f;
+ scale = 0.1f;
+ anim = new QTimeLine(750, this);
+ anim->setUpdateInterval(20);
+ connect(anim, SIGNAL(valueChanged(qreal)), SLOT(animate(qreal)));
+ connect(anim, SIGNAL(finished()), SLOT(animFinished()));
+
+ svg_renderer = new QSvgRenderer(QLatin1String(":/res/bubbles.svg"), this);
+ connect(svg_renderer, SIGNAL(repaintNeeded()), this, SLOT(draw()));
+
+ logo = QImage(":/res/designer.png");
+ logo = logo.convertToFormat(QImage::Format_ARGB32);
+
+ makeCurrent(); // need a current context to create the display list
+ tile_list = glGenLists(1);
+ glNewList(tile_list, GL_COMPILE);
+ glBegin(GL_QUADS);
+ {
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+
+ glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
+
+ glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
+ glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
+ glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
+ glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
+}
+ glEnd();
+ glEndList();
+
+ wave = new GLfloat[logo.width()*logo.height()];
+ memset(wave, 0, logo.width()*logo.height());
+ startTimer(30); // wave timer
+
+ pbuffer->makeCurrent();
+ dynamicTexture = pbuffer->generateDynamicTexture();
+
+ // bind the dynamic texture to the pbuffer - this is a no-op under X11
+ hasDynamicTextureUpdate = pbuffer->bindToDynamicTexture(dynamicTexture);
+}
+
+GLWidget::~GLWidget()
+{
+ delete[] wave;
+ glDeleteLists(tile_list, 1);
+ pbuffer->releaseFromDynamicTexture();
+ glDeleteTextures(1, &dynamicTexture);
+ delete pbuffer;
+}
+
+void GLWidget::paintEvent(QPaintEvent *)
+{
+ draw();
+}
+
+void GLWidget::draw()
+{
+ QPainter p(this); // used for text overlay
+
+ // save the GL state set for QPainter
+ saveGLState();
+
+ // render the 'bubbles.svg' file into our pbuffer
+ QPainter pbuffer_painter(pbuffer);
+ svg_renderer->render(&pbuffer_painter);
+ pbuffer_painter.end();
+ glFlush();
+
+ // rendering directly to a texture is not supported on X11 and
+ // some Windows implementations, unfortunately
+ if (!hasDynamicTextureUpdate)
+ pbuffer->updateDynamicTexture(dynamicTexture);
+
+ makeCurrent();
+ // draw into the GL widget
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1, 1, -1, 1, 10, 100);
+ glTranslatef(0.0f, 0.0f, -15.0f);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glViewport(0, 0, width(), height());
+
+ glBindTexture(GL_TEXTURE_2D, dynamicTexture);
+ glEnable(GL_TEXTURE_2D);
+ glEnable(GL_MULTISAMPLE);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+ // draw background
+ glPushMatrix();
+ glScalef(1.7f, 1.7f, 1.7f);
+ glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
+ glCallList(tile_list);
+ glPopMatrix();
+
+ const int w = logo.width();
+ const int h = logo.height();
+
+ glRotatef(rot_x, 1.0f, 0.0f, 0.0f);
+ glRotatef(rot_y, 0.0f, 1.0f, 0.0f);
+ glRotatef(rot_z, 0.0f, 0.0f, 1.0f);
+ glScalef(scale/w, scale/w, scale/w);
+
+ glDepthFunc(GL_LESS);
+ glEnable(GL_DEPTH_TEST);
+
+ // draw the Qt icon
+ glTranslatef(-w+1, -h+1, 0.0f);
+ for (int y=h-1; y>=0; --y) {
+ uint *p = (uint*) logo.scanLine(y);
+ uint *end = p + w;
+ int x = 0;
+ while (p < end) {
+ glColor4ub(qRed(*p), qGreen(*p), qBlue(*p), uchar(qAlpha(*p)*.9));
+ glTranslatef(0.0f, 0.0f, wave[y*w+x]);
+ if (qAlpha(*p) > 128)
+ glCallList(tile_list);
+ glTranslatef(0.0f, 0.0f, -wave[y*w+x]);
+ glTranslatef(2.0f, 0.0f, 0.0f);
+ ++x;
+ ++p;
+ }
+ glTranslatef(-w*2.0f, 2.0f, 0.0f);
+ }
+
+ // restore the GL state that QPainter expects
+ restoreGLState();
+
+ // draw the overlayed text using QPainter
+ p.setPen(QColor(197, 197, 197, 157));
+ p.setBrush(QColor(197, 197, 197, 127));
+ p.drawRect(QRect(0, 0, width(), 50));
+ p.setPen(Qt::black);
+ p.setBrush(Qt::NoBrush);
+ const QString str1(tr("A simple OpenGL pbuffer example."));
+ const QString str2(tr("Use the mouse wheel to zoom, press buttons and move mouse to rotate, double-click to flip."));
+ QFontMetrics fm(p.font());
+ p.drawText(width()/2 - fm.width(str1)/2, 20, str1);
+ p.drawText(width()/2 - fm.width(str2)/2, 20 + fm.lineSpacing(), str2);
+}
+
+void GLWidget::mousePressEvent(QMouseEvent *e)
+{
+ anchor = e->pos();
+}
+
+void GLWidget::mouseMoveEvent(QMouseEvent *e)
+{
+ QPoint diff = e->pos() - anchor;
+ if (e->buttons() & Qt::LeftButton) {
+ rot_x += diff.y()/5.0f;
+ rot_y += diff.x()/5.0f;
+ } else if (e->buttons() & Qt::RightButton) {
+ rot_z += diff.x()/5.0f;
+ }
+
+ anchor = e->pos();
+ draw();
+}
+
+void GLWidget::wheelEvent(QWheelEvent *e)
+{
+ e->delta() > 0 ? scale += scale*0.1f : scale -= scale*0.1f;
+ draw();
+}
+
+void GLWidget::mouseDoubleClickEvent(QMouseEvent *)
+{
+ anim->start();
+}
+
+void GLWidget::animate(qreal val)
+{
+ rot_y = val * 180;
+ draw();
+}
+
+void GLWidget::animFinished()
+{
+ if (anim->direction() == QTimeLine::Forward)
+ anim->setDirection(QTimeLine::Backward);
+ else
+ anim->setDirection(QTimeLine::Forward);
+}
+
+void GLWidget::saveGLState()
+{
+ glPushAttrib(GL_ALL_ATTRIB_BITS);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+}
+
+void GLWidget::restoreGLState()
+{
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+ glPopMatrix();
+ glPopAttrib();
+}
+
+#define PI 3.14159
+
+void GLWidget::timerEvent(QTimerEvent *)
+{
+ if (QApplication::mouseButtons() != 0)
+ return;
+
+ static bool scale_in = true;
+
+ if (scale_in && scale > 35.0f)
+ scale_in = false;
+ else if (!scale_in && scale < .5f)
+ scale_in = true;
+
+ scale = scale_in ? scale + scale*0.01f : scale-scale*0.01f;
+ rot_z += 0.3f;
+ rot_x += 0.1f;
+
+ int dx, dy; // disturbance point
+ float s, v, W, t;
+ int i, j;
+ static float wt[128][128];
+ const int width = logo.width();
+ const int AMP = 5;
+
+ dx = dy = width >> 1;
+
+ W = .3f;
+ v = -4; // wave speed
+
+ for (i = 0; i < width; ++i) {
+ for ( j = 0; j < width; ++j) {
+ s = sqrt((double) ((j - dx) * (j - dx) + (i - dy) * (i - dy)));
+ wt[i][j] += 0.1f;
+ t = s / v;
+ if (s != 0)
+ wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t)) / (0.2*(s + 2));
+ else
+ wave[i*width + j] = AMP * sin(2 * PI * W * (wt[i][j] + t));
+ }
+ }
+}
diff --git a/examples/opengl/pbuffers2/glwidget.h b/examples/opengl/pbuffers2/glwidget.h
new file mode 100644
index 0000000000..8058a418a7
--- /dev/null
+++ b/examples/opengl/pbuffers2/glwidget.h
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtOpenGL>
+#include <QImage>
+#include <QTimeLine>
+#include <QSvgRenderer>
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent);
+ ~GLWidget();
+
+ void saveGLState();
+ void restoreGLState();
+
+ void paintEvent(QPaintEvent *);
+ void mousePressEvent(QMouseEvent *);
+ void mouseDoubleClickEvent(QMouseEvent *);
+ void mouseMoveEvent(QMouseEvent *);
+ void timerEvent(QTimerEvent *);
+ void wheelEvent(QWheelEvent *);
+
+public slots:
+ void animate(qreal);
+ void animFinished();
+ void draw();
+
+private:
+ QPoint anchor;
+ float scale;
+ float rot_x, rot_y, rot_z;
+ GLuint tile_list;
+ GLfloat *wave;
+ bool hasDynamicTextureUpdate;
+
+ QImage logo;
+ QTimeLine *anim;
+ QSvgRenderer *svg_renderer;
+
+ GLuint dynamicTexture;
+ QGLPixelBuffer *pbuffer;
+};
+
diff --git a/examples/opengl/pbuffers2/main.cpp b/examples/opengl/pbuffers2/main.cpp
new file mode 100644
index 0000000000..9d03beb7fd
--- /dev/null
+++ b/examples/opengl/pbuffers2/main.cpp
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QApplication>
+#include <QtGui/QMessageBox>
+#include "glwidget.h"
+
+int main(int argc, char **argv)
+{
+ Q_INIT_RESOURCE(pbuffers2);
+
+ QApplication a(argc, argv);
+ if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) {
+ QMessageBox::information(0, "OpenGL pbuffers 2",
+ "This system does not support OpenGL/pbuffers.");
+ return -1;
+ }
+
+ GLWidget widget(0);
+ widget.resize(640, 480);
+ widget.show();
+ return a.exec();
+}
+
diff --git a/examples/opengl/pbuffers2/pbuffers2.pro b/examples/opengl/pbuffers2/pbuffers2.pro
new file mode 100644
index 0000000000..cbd0cb514e
--- /dev/null
+++ b/examples/opengl/pbuffers2/pbuffers2.pro
@@ -0,0 +1,21 @@
+######################################################################
+# Automatically generated by qmake (2.01a) Fri May 12 17:15:46 2006
+######################################################################
+
+TEMPLATE = app
+TARGET =
+DEPENDPATH += .
+INCLUDEPATH += .
+
+QT += opengl svg
+
+# Input
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+RESOURCES += pbuffers2.qrc
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/pbuffers2
+sources.files = $$SOURCES $$HEADERS $$RESOURCES pbuffers2.pro *.png *.svg
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/pbuffers2
+INSTALLS += target sources
diff --git a/examples/opengl/pbuffers2/pbuffers2.qrc b/examples/opengl/pbuffers2/pbuffers2.qrc
new file mode 100644
index 0000000000..986f1ca385
--- /dev/null
+++ b/examples/opengl/pbuffers2/pbuffers2.qrc
@@ -0,0 +1,6 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource prefix="/res">
+ <file>bubbles.svg</file>
+ <file>designer.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/samplebuffers/glwidget.cpp b/examples/opengl/samplebuffers/glwidget.cpp
new file mode 100644
index 0000000000..381ff9573b
--- /dev/null
+++ b/examples/opengl/samplebuffers/glwidget.cpp
@@ -0,0 +1,165 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "glwidget.h"
+#include <math.h>
+
+#ifndef GL_MULTISAMPLE
+#define GL_MULTISAMPLE 0x809D
+#endif
+
+GLWidget::GLWidget(QWidget *parent)
+ : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
+{
+ startTimer(40);
+ setWindowTitle(tr("Sample Buffers"));
+}
+
+void GLWidget::initializeGL()
+{
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-.5, .5, .5, -.5, -1000, 1000);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
+
+ makeObject();
+}
+
+void GLWidget::resizeGL(int w, int h)
+{
+ glViewport(0, 0, w, h);
+}
+
+void GLWidget::paintGL()
+{
+ static float rot = 0.0;
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ glMatrixMode(GL_MODELVIEW);
+ glPushMatrix();
+ glEnable(GL_MULTISAMPLE);
+ glTranslatef(-0.25f, -0.10f, 0.0f);
+ glScalef(0.75f, 1.15f, 0.0f);
+ glRotatef(rot, 0.0f, 0.f, 1.0f);
+ glCallList(list);
+ glPopMatrix();
+
+ glPushMatrix();
+ glDisable(GL_MULTISAMPLE);
+ glTranslatef(0.25f, -0.10f, 0.0f);
+ glScalef(0.75f, 1.15f, 0.0f);
+ glRotatef(rot, 0.0f, 0.0f, 1.0f);
+ glCallList(list);
+ glPopMatrix();
+
+ rot += 0.2f;
+
+ qglColor(Qt::black);
+ renderText(-0.35, 0.4, 0.0, "Multisampling enabled");
+ renderText(0.15, 0.4, 0.0, "Multisampling disabled");
+}
+
+void GLWidget::timerEvent(QTimerEvent *)
+{
+ update();
+}
+
+void GLWidget::makeObject()
+{
+ QColor trolltechGreen(QColor::fromCmykF(0.40, 0.0, 1.0, 0.0));
+ const double Pi = 3.14159265358979323846;
+ const int NumSectors = 15;
+ GLdouble x1 = +0.06;
+ GLdouble y1 = -0.14;
+ GLdouble x2 = +0.14;
+ GLdouble y2 = -0.06;
+ GLdouble x3 = +0.08;
+ GLdouble y3 = +0.00;
+ GLdouble x4 = +0.30;
+ GLdouble y4 = +0.22;
+
+ list = glGenLists(1);
+ glNewList(list, GL_COMPILE);
+ {
+ for (int i = 0; i < NumSectors; ++i) {
+ double angle1 = (i * 2 * Pi) / NumSectors;
+ GLdouble x5 = 0.30 * sin(angle1);
+ GLdouble y5 = 0.30 * cos(angle1);
+ GLdouble x6 = 0.20 * sin(angle1);
+ GLdouble y6 = 0.20 * cos(angle1);
+
+ double angle2 = ((i + 1) * 2 * Pi) / NumSectors;
+ GLdouble x7 = 0.20 * sin(angle2);
+ GLdouble y7 = 0.20 * cos(angle2);
+ GLdouble x8 = 0.30 * sin(angle2);
+ GLdouble y8 = 0.30 * cos(angle2);
+
+ qglColor(trolltechGreen);
+ quad(GL_QUADS, x5, y5, x6, y6, x7, y7, x8, y8);
+ qglColor(Qt::black);
+ quad(GL_LINE_LOOP, x5, y5, x6, y6, x7, y7, x8, y8);
+ }
+
+ qglColor(trolltechGreen);
+ quad(GL_QUADS, x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(GL_QUADS, x3, y3, x4, y4, y4, x4, y3, x3);
+
+ qglColor(Qt::black);
+ quad(GL_LINE_LOOP, x1, y1, x2, y2, y2, x2, y1, x1);
+ quad(GL_LINE_LOOP, x3, y3, x4, y4, y4, x4, y3, x3);
+ }
+ glEndList();
+}
+
+void GLWidget::quad(GLenum primitive, GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4)
+{
+ glBegin(primitive);
+ {
+ glVertex2d(x1, y1);
+ glVertex2d(x2, y2);
+ glVertex2d(x3, y3);
+ glVertex2d(x4, y4);
+ }
+ glEnd();
+}
diff --git a/examples/opengl/samplebuffers/glwidget.h b/examples/opengl/samplebuffers/glwidget.h
new file mode 100644
index 0000000000..dee739e222
--- /dev/null
+++ b/examples/opengl/samplebuffers/glwidget.h
@@ -0,0 +1,62 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtOpenGL>
+
+class GLWidget : public QGLWidget
+{
+public:
+ GLWidget(QWidget *parent);
+
+protected:
+ void initializeGL();
+ void resizeGL(int w, int h);
+ void paintGL();
+ void timerEvent(QTimerEvent *);
+
+ void makeObject();
+ void quad(GLenum primitive, GLdouble x1, GLdouble y1, GLdouble x2, GLdouble y2,
+ GLdouble x3, GLdouble y3, GLdouble x4, GLdouble y4);
+
+private:
+ GLuint list;
+};
+
diff --git a/examples/opengl/samplebuffers/main.cpp b/examples/opengl/samplebuffers/main.cpp
new file mode 100644
index 0000000000..88a37b4c17
--- /dev/null
+++ b/examples/opengl/samplebuffers/main.cpp
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui/QApplication>
+#include <QtGui/QMessageBox>
+#include "glwidget.h"
+
+int main(int argc, char **argv)
+{
+ QApplication a(argc, argv);
+
+ QGLFormat f = QGLFormat::defaultFormat();
+ f.setSampleBuffers(true);
+ QGLFormat::setDefaultFormat(f);
+ if (!QGLFormat::hasOpenGL()) {
+ QMessageBox::information(0, "OpenGL samplebuffers",
+ "This system does not support OpenGL.");
+ return 0;
+ }
+
+ GLWidget widget(0);
+
+ if (!widget.format().sampleBuffers()) {
+ QMessageBox::information(0, "OpenGL samplebuffers",
+ "This system does not have sample buffer support.");
+ return 0;
+ }
+
+ widget.resize(640, 480);
+ widget.show();
+
+ return a.exec();
+}
+
diff --git a/examples/opengl/samplebuffers/samplebuffers.pro b/examples/opengl/samplebuffers/samplebuffers.pro
new file mode 100644
index 0000000000..9eb5f58b15
--- /dev/null
+++ b/examples/opengl/samplebuffers/samplebuffers.pro
@@ -0,0 +1,10 @@
+HEADERS += glwidget.h
+SOURCES += glwidget.cpp main.cpp
+
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/samplebuffers
+sources.files = $$SOURCES $$HEADERS samplebuffers.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/samplebuffers
+INSTALLS += target sources
diff --git a/examples/opengl/textures/glwidget.cpp b/examples/opengl/textures/glwidget.cpp
new file mode 100644
index 0000000000..5882373bfc
--- /dev/null
+++ b/examples/opengl/textures/glwidget.cpp
@@ -0,0 +1,182 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtOpenGL>
+
+#include <math.h>
+
+#include "glwidget.h"
+
+GLuint GLWidget::sharedObject = 0;
+int GLWidget::refCount = 0;
+
+GLWidget::GLWidget(QWidget *parent, QGLWidget *shareWidget)
+ : QGLWidget(parent, shareWidget)
+{
+ clearColor = Qt::black;
+ xRot = 0;
+ yRot = 0;
+ zRot = 0;
+}
+
+GLWidget::~GLWidget()
+{
+ if (--refCount == 0) {
+ makeCurrent();
+ glDeleteLists(sharedObject, 1);
+ }
+}
+
+QSize GLWidget::minimumSizeHint() const
+{
+ return QSize(50, 50);
+}
+
+QSize GLWidget::sizeHint() const
+{
+ return QSize(200, 200);
+}
+
+void GLWidget::rotateBy(int xAngle, int yAngle, int zAngle)
+{
+ xRot += xAngle;
+ yRot += yAngle;
+ zRot += zAngle;
+ updateGL();
+}
+
+void GLWidget::setClearColor(const QColor &color)
+{
+ clearColor = color;
+ updateGL();
+}
+
+void GLWidget::initializeGL()
+{
+ if (!sharedObject)
+ sharedObject = makeObject();
+ ++refCount;
+
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_TEXTURE_2D);
+}
+
+void GLWidget::paintGL()
+{
+ qglClearColor(clearColor);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glLoadIdentity();
+ glTranslated(0.0, 0.0, -10.0);
+ glRotated(xRot / 16.0, 1.0, 0.0, 0.0);
+ glRotated(yRot / 16.0, 0.0, 1.0, 0.0);
+ glRotated(zRot / 16.0, 0.0, 0.0, 1.0);
+ glCallList(sharedObject);
+}
+
+void GLWidget::resizeGL(int width, int height)
+{
+ int side = qMin(width, height);
+ glViewport((width - side) / 2, (height - side) / 2, side, side);
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+void GLWidget::mousePressEvent(QMouseEvent *event)
+{
+ lastPos = event->pos();
+}
+
+void GLWidget::mouseMoveEvent(QMouseEvent *event)
+{
+ int dx = event->x() - lastPos.x();
+ int dy = event->y() - lastPos.y();
+
+ if (event->buttons() & Qt::LeftButton) {
+ rotateBy(8 * dy, 8 * dx, 0);
+ } else if (event->buttons() & Qt::RightButton) {
+ rotateBy(8 * dy, 0, 8 * dx);
+ }
+ lastPos = event->pos();
+}
+
+void GLWidget::mouseReleaseEvent(QMouseEvent * /* event */)
+{
+ emit clicked();
+}
+
+GLuint GLWidget::makeObject()
+{
+ static const int coords[6][4][3] = {
+ { { +1, -1, -1 }, { -1, -1, -1 }, { -1, +1, -1 }, { +1, +1, -1 } },
+ { { +1, +1, -1 }, { -1, +1, -1 }, { -1, +1, +1 }, { +1, +1, +1 } },
+ { { +1, -1, +1 }, { +1, -1, -1 }, { +1, +1, -1 }, { +1, +1, +1 } },
+ { { -1, -1, -1 }, { -1, -1, +1 }, { -1, +1, +1 }, { -1, +1, -1 } },
+ { { +1, -1, +1 }, { -1, -1, +1 }, { -1, -1, -1 }, { +1, -1, -1 } },
+ { { -1, -1, +1 }, { +1, -1, +1 }, { +1, +1, +1 }, { -1, +1, +1 } }
+ };
+
+
+ GLuint textures[6];
+ for (int j=0; j < 6; ++j)
+ textures[j] = bindTexture(QPixmap(QString(":/images/side%1.png").arg(j + 1)),
+ GL_TEXTURE_2D);
+
+ GLuint list = glGenLists(1);
+ glNewList(list, GL_COMPILE);
+ for (int i = 0; i < 6; ++i) {
+ glBindTexture(GL_TEXTURE_2D, textures[i]);
+ glBegin(GL_QUADS);
+ for (int j = 0; j < 4; ++j) {
+ glTexCoord2d(j == 0 || j == 3, j == 0 || j == 1);
+ glVertex3d(0.2 * coords[i][j][0], 0.2 * coords[i][j][1],
+ 0.2 * coords[i][j][2]);
+ }
+ glEnd();
+ }
+
+ glEndList();
+ return list;
+}
diff --git a/examples/opengl/textures/glwidget.h b/examples/opengl/textures/glwidget.h
new file mode 100644
index 0000000000..623b301f77
--- /dev/null
+++ b/examples/opengl/textures/glwidget.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef GLWIDGET_H
+#define GLWIDGET_H
+
+#include <QGLWidget>
+
+class GLWidget : public QGLWidget
+{
+ Q_OBJECT
+
+public:
+ GLWidget(QWidget *parent = 0, QGLWidget *shareWidget = 0);
+ ~GLWidget();
+
+ QSize minimumSizeHint() const;
+ QSize sizeHint() const;
+ void rotateBy(int xAngle, int yAngle, int zAngle);
+ void setClearColor(const QColor &color);
+
+signals:
+ void clicked();
+
+protected:
+ void initializeGL();
+ void paintGL();
+ void resizeGL(int width, int height);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseMoveEvent(QMouseEvent *event);
+ void mouseReleaseEvent(QMouseEvent *event);
+
+private:
+ GLuint makeObject();
+
+ QColor clearColor;
+ QPoint lastPos;
+ int xRot;
+ int yRot;
+ int zRot;
+
+ static GLuint sharedObject;
+ static int refCount;
+};
+
+#endif
diff --git a/examples/opengl/textures/images/side1.png b/examples/opengl/textures/images/side1.png
new file mode 100644
index 0000000000..2e6b471cc5
--- /dev/null
+++ b/examples/opengl/textures/images/side1.png
Binary files differ
diff --git a/examples/opengl/textures/images/side2.png b/examples/opengl/textures/images/side2.png
new file mode 100644
index 0000000000..d1acf1b2a0
--- /dev/null
+++ b/examples/opengl/textures/images/side2.png
Binary files differ
diff --git a/examples/opengl/textures/images/side3.png b/examples/opengl/textures/images/side3.png
new file mode 100644
index 0000000000..a6386131d8
--- /dev/null
+++ b/examples/opengl/textures/images/side3.png
Binary files differ
diff --git a/examples/opengl/textures/images/side4.png b/examples/opengl/textures/images/side4.png
new file mode 100644
index 0000000000..ebbc1e3c34
--- /dev/null
+++ b/examples/opengl/textures/images/side4.png
Binary files differ
diff --git a/examples/opengl/textures/images/side5.png b/examples/opengl/textures/images/side5.png
new file mode 100644
index 0000000000..fa2f709fe7
--- /dev/null
+++ b/examples/opengl/textures/images/side5.png
Binary files differ
diff --git a/examples/opengl/textures/images/side6.png b/examples/opengl/textures/images/side6.png
new file mode 100644
index 0000000000..97141e45eb
--- /dev/null
+++ b/examples/opengl/textures/images/side6.png
Binary files differ
diff --git a/examples/opengl/textures/main.cpp b/examples/opengl/textures/main.cpp
new file mode 100644
index 0000000000..5129cdaaf4
--- /dev/null
+++ b/examples/opengl/textures/main.cpp
@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ Q_INIT_RESOURCE(textures);
+
+ QApplication app(argc, argv);
+ Window window;
+ window.show();
+ return app.exec();
+}
diff --git a/examples/opengl/textures/textures.pro b/examples/opengl/textures/textures.pro
new file mode 100644
index 0000000000..cd98a6880a
--- /dev/null
+++ b/examples/opengl/textures/textures.pro
@@ -0,0 +1,13 @@
+HEADERS = glwidget.h \
+ window.h
+SOURCES = glwidget.cpp \
+ main.cpp \
+ window.cpp
+RESOURCES = textures.qrc
+QT += opengl
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/opengl/textures
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS textures.pro images
+sources.path = $$[QT_INSTALL_EXAMPLES]/opengl/textures
+INSTALLS += target sources
diff --git a/examples/opengl/textures/textures.qrc b/examples/opengl/textures/textures.qrc
new file mode 100644
index 0000000000..efa9e9c8d2
--- /dev/null
+++ b/examples/opengl/textures/textures.qrc
@@ -0,0 +1,10 @@
+<!DOCTYPE RCC><RCC version="1.0">
+<qresource>
+ <file>images/side1.png</file>
+ <file>images/side2.png</file>
+ <file>images/side3.png</file>
+ <file>images/side4.png</file>
+ <file>images/side5.png</file>
+ <file>images/side6.png</file>
+</qresource>
+</RCC>
diff --git a/examples/opengl/textures/window.cpp b/examples/opengl/textures/window.cpp
new file mode 100644
index 0000000000..a974e68270
--- /dev/null
+++ b/examples/opengl/textures/window.cpp
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "glwidget.h"
+#include "window.h"
+
+Window::Window()
+{
+ QGridLayout *mainLayout = new QGridLayout;
+
+ glWidgets[0][0] = 0;
+
+ for (int i = 0; i < NumRows; ++i) {
+ for (int j = 0; j < NumColumns; ++j) {
+ QColor clearColor;
+ clearColor.setHsv(((i * NumColumns) + j) * 255
+ / (NumRows * NumColumns - 1),
+ 255, 63);
+
+ glWidgets[i][j] = new GLWidget(0, glWidgets[0][0]);
+ glWidgets[i][j]->setClearColor(clearColor);
+ glWidgets[i][j]->rotateBy(+42 * 16, +42 * 16, -21 * 16);
+ mainLayout->addWidget(glWidgets[i][j], i, j);
+
+ connect(glWidgets[i][j], SIGNAL(clicked()),
+ this, SLOT(setCurrentGlWidget()));
+ }
+ }
+ setLayout(mainLayout);
+
+ currentGlWidget = glWidgets[0][0];
+
+ QTimer *timer = new QTimer(this);
+ connect(timer, SIGNAL(timeout()), this, SLOT(rotateOneStep()));
+ timer->start(20);
+
+ setWindowTitle(tr("Textures"));
+}
+
+void Window::setCurrentGlWidget()
+{
+ currentGlWidget = qobject_cast<GLWidget *>(sender());
+}
+
+void Window::rotateOneStep()
+{
+ if (currentGlWidget)
+ currentGlWidget->rotateBy(+2 * 16, +2 * 16, -1 * 16);
+}
diff --git a/examples/opengl/textures/window.h b/examples/opengl/textures/window.h
new file mode 100644
index 0000000000..50bb7f07ae
--- /dev/null
+++ b/examples/opengl/textures/window.h
@@ -0,0 +1,67 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WINDOW_H
+#define WINDOW_H
+
+#include <QWidget>
+
+class GLWidget;
+
+class Window : public QWidget
+{
+ Q_OBJECT
+
+public:
+ Window();
+
+private slots:
+ void setCurrentGlWidget();
+ void rotateOneStep();
+
+private:
+ enum { NumRows = 2, NumColumns = 3 };
+
+ GLWidget *glWidgets[NumRows][NumColumns];
+ GLWidget *currentGlWidget;
+};
+
+#endif