1 | /****************************************************************************
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2 | **
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3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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4 | ** Contact: Qt Software Information ([email protected])
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5 | **
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6 | ** This file is part of the examples of the Qt Toolkit.
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7 | **
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8 | ** $QT_BEGIN_LICENSE:LGPL$
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9 | ** Commercial Usage
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10 | ** Licensees holding valid Qt Commercial licenses may use this file in
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11 | ** accordance with the Qt Commercial License Agreement provided with the
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12 | ** Software or, alternatively, in accordance with the terms contained in
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13 | ** a written agreement between you and Nokia.
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14 | **
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15 | ** GNU Lesser General Public License Usage
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16 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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17 | ** General Public License version 2.1 as published by the Free Software
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18 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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19 | ** packaging of this file. Please review the following information to
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20 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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22 | **
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23 | ** In addition, as a special exception, Nokia gives you certain
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24 | ** additional rights. These rights are described in the Nokia Qt LGPL
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25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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26 | ** package.
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27 | **
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28 | ** GNU General Public License Usage
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29 | ** Alternatively, this file may be used under the terms of the GNU
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30 | ** General Public License version 3.0 as published by the Free Software
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31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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32 | ** packaging of this file. Please review the following information to
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33 | ** ensure the GNU General Public License version 3.0 requirements will be
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34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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35 | **
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36 | ** If you are unsure which license is appropriate for your use, please
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37 | ** contact the sales department at [email protected].
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38 | ** $QT_END_LICENSE$
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39 | **
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40 | ****************************************************************************/
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41 |
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42 | #include <QtGui/QImage>
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43 | #include "glwidget.h"
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44 |
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45 | #include <math.h>
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46 |
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47 | #ifndef GL_MULTISAMPLE
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48 | #define GL_MULTISAMPLE 0x809D
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49 | #endif
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50 |
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51 | GLWidget::GLWidget(QWidget *parent)
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52 | : QGLWidget(QGLFormat(QGL::SampleBuffers), parent)
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53 | {
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54 | setWindowTitle(tr("OpenGL pbuffers 2"));
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55 |
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56 | pbuffer = new QGLPixelBuffer(1024, 1024, format(), this);
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57 |
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58 | rot_x = rot_y = rot_z = 0.0f;
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59 | scale = 0.1f;
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60 | anim = new QTimeLine(750, this);
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61 | anim->setUpdateInterval(20);
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62 | connect(anim, SIGNAL(valueChanged(qreal)), SLOT(animate(qreal)));
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63 | connect(anim, SIGNAL(finished()), SLOT(animFinished()));
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64 |
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65 | svg_renderer = new QSvgRenderer(QLatin1String(":/res/bubbles.svg"), this);
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66 | connect(svg_renderer, SIGNAL(repaintNeeded()), this, SLOT(draw()));
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67 |
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68 | logo = QImage(":/res/designer.png");
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69 | logo = logo.convertToFormat(QImage::Format_ARGB32);
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70 |
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71 | makeCurrent(); // need a current context to create the display list
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72 | tile_list = glGenLists(1);
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73 | glNewList(tile_list, GL_COMPILE);
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74 | glBegin(GL_QUADS);
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75 | {
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76 | glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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77 | glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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78 | glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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79 | glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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80 |
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81 | glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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82 | glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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83 | glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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84 | glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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85 |
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86 | glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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87 | glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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88 | glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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89 | glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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90 |
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91 | glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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92 | glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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93 | glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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94 | glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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95 |
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96 | glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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97 | glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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98 | glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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99 | glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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100 |
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101 | glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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102 | glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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103 | glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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104 | glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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105 | }
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106 | glEnd();
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107 | glEndList();
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108 |
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109 | wave = new GLfloat[logo.width()*logo.height()];
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110 | memset(wave, 0, logo.width()*logo.height());
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111 | startTimer(30); // wave timer
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112 |
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113 | pbuffer->makeCurrent();
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114 | dynamicTexture = pbuffer->generateDynamicTexture();
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115 |
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116 | // bind the dynamic texture to the pbuffer - this is a no-op under X11
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117 | hasDynamicTextureUpdate = pbuffer->bindToDynamicTexture(dynamicTexture);
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118 | }
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