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Diffstat (limited to 'demos/boxes/main.cpp')
-rw-r--r-- | demos/boxes/main.cpp | 150 |
1 files changed, 0 insertions, 150 deletions
diff --git a/demos/boxes/main.cpp b/demos/boxes/main.cpp deleted file mode 100644 index 483170801f..0000000000 --- a/demos/boxes/main.cpp +++ /dev/null @@ -1,150 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the demonstration applications of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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 1.1, 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -//#include <GL/glew.h> -#include "glextensions.h" - -#include "scene.h" - -#include <QtGui> -#include <QGLWidget> - -class GraphicsView : public QGraphicsView -{ -public: - GraphicsView() - { - setWindowTitle(tr("Boxes")); - setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform); - //setRenderHints(QPainter::SmoothPixmapTransform); - } - -protected: - void resizeEvent(QResizeEvent *event) { - if (scene()) - scene()->setSceneRect(QRect(QPoint(0, 0), event->size())); - QGraphicsView::resizeEvent(event); - } -}; - -inline bool matchString(const char *extensionString, const char *subString) -{ - int subStringLength = strlen(subString); - return (strncmp(extensionString, subString, subStringLength) == 0) - && ((extensionString[subStringLength] == ' ') || (extensionString[subStringLength] == '\0')); -} - -bool necessaryExtensionsSupported() -{ - const char *extensionString = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)); - const char *p = extensionString; - - const int GL_EXT_FBO = 1; - const int GL_ARB_VS = 2; - const int GL_ARB_FS = 4; - const int GL_ARB_SO = 8; - int extensions = 0; - - while (*p) { - if (matchString(p, "GL_EXT_framebuffer_object")) - extensions |= GL_EXT_FBO; - else if (matchString(p, "GL_ARB_vertex_shader")) - extensions |= GL_ARB_VS; - else if (matchString(p, "GL_ARB_fragment_shader")) - extensions |= GL_ARB_FS; - else if (matchString(p, "GL_ARB_shader_objects")) - extensions |= GL_ARB_SO; - while ((*p != ' ') && (*p != '\0')) - ++p; - if (*p == ' ') - ++p; - } - return (extensions == 15); -} - -int main(int argc, char **argv) -{ - QApplication app(argc, argv); - - if ((QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_5) == 0) { - QMessageBox::critical(0, "OpenGL features missing", - "OpenGL version 1.5 or higher is required to run this demo.\n" - "The program will now exit."); - return -1; - } - - int maxTextureSize = 1024; - QGLWidget *widget = new QGLWidget(QGLFormat(QGL::SampleBuffers)); - widget->makeCurrent(); - - if (!necessaryExtensionsSupported()) { - QMessageBox::critical(0, "OpenGL features missing", - "The OpenGL extensions required to run this demo are missing.\n" - "The program will now exit."); - delete widget; - return -2; - } - - // Check if all the necessary functions are resolved. - if (!getGLExtensionFunctions().resolve(widget->context())) { - QMessageBox::critical(0, "OpenGL features missing", - "Failed to resolve OpenGL functions required to run this demo.\n" - "The program will now exit."); - delete widget; - return -3; - } - - // TODO: Make conditional for final release - QMessageBox::information(0, "For your information", - "This demo can be GPU and CPU intensive and may\n" - "work poorly or not at all on your system."); - - widget->makeCurrent(); // The current context must be set before calling Scene's constructor - Scene scene(1024, 768, maxTextureSize); - GraphicsView view; - view.setViewport(widget); - view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate); - view.setScene(&scene); - view.show(); - - return app.exec(); -} - |