diff options
Diffstat (limited to 'examples/opengl/legacy/pbuffers2')
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/bubbles.svg | 215 | ||||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/designer.png | bin | 0 -> 2810 bytes | |||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/glwidget.cpp | 325 | ||||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/glwidget.h | 84 | ||||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/main.cpp | 61 | ||||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/pbuffers2.pro | 15 | ||||
| -rw-r--r-- | examples/opengl/legacy/pbuffers2/pbuffers2.qrc | 6 |
7 files changed, 706 insertions, 0 deletions
diff --git a/examples/opengl/legacy/pbuffers2/bubbles.svg b/examples/opengl/legacy/pbuffers2/bubbles.svg new file mode 100644 index 0000000000..51730124a2 --- /dev/null +++ b/examples/opengl/legacy/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="black" 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" + 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" additive="sum" 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/legacy/pbuffers2/designer.png b/examples/opengl/legacy/pbuffers2/designer.png Binary files differnew file mode 100644 index 0000000000..4f32d57496 --- /dev/null +++ b/examples/opengl/legacy/pbuffers2/designer.png diff --git a/examples/opengl/legacy/pbuffers2/glwidget.cpp b/examples/opengl/legacy/pbuffers2/glwidget.cpp new file mode 100644 index 0000000000..de30bb8b21 --- /dev/null +++ b/examples/opengl/legacy/pbuffers2/glwidget.cpp @@ -0,0 +1,325 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <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 + p.beginNativePainting(); + saveGLState(); + + // render the 'bubbles.svg' file into our pbuffer + QPainter pbuffer_painter(pbuffer); + svg_renderer->render(&pbuffer_painter); + pbuffer_painter.end(); + glFlush(); + + 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() * devicePixelRatio(), height() * devicePixelRatio()); + + 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(); + p.endNativePainting(); + + // 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/legacy/pbuffers2/glwidget.h b/examples/opengl/legacy/pbuffers2/glwidget.h new file mode 100644 index 0000000000..20dd796a48 --- /dev/null +++ b/examples/opengl/legacy/pbuffers2/glwidget.h @@ -0,0 +1,84 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <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/legacy/pbuffers2/main.cpp b/examples/opengl/legacy/pbuffers2/main.cpp new file mode 100644 index 0000000000..79fd88a3c8 --- /dev/null +++ b/examples/opengl/legacy/pbuffers2/main.cpp @@ -0,0 +1,61 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtWidgets/QApplication> +#include <QtWidgets/QMessageBox> +#include "glwidget.h" + +int main(int argc, char **argv) +{ + Q_INIT_RESOURCE(pbuffers2); + + QApplication a(argc, argv); + GLWidget widget(0); + widget.resize(640, 480); + widget.makeCurrent(); + if (!QGLFormat::hasOpenGL() || !QGLPixelBuffer::hasOpenGLPbuffers()) { + QMessageBox::information(0, "OpenGL pbuffers 2", + "This system does not support OpenGL/pbuffers."); + return -1; + } + widget.show(); + return a.exec(); +} + diff --git a/examples/opengl/legacy/pbuffers2/pbuffers2.pro b/examples/opengl/legacy/pbuffers2/pbuffers2.pro new file mode 100644 index 0000000000..f9dd269eea --- /dev/null +++ b/examples/opengl/legacy/pbuffers2/pbuffers2.pro @@ -0,0 +1,15 @@ +QT += opengl svg widgets + +HEADERS += glwidget.h +SOURCES += glwidget.cpp main.cpp +RESOURCES += pbuffers2.qrc + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/opengl/pbuffers2 +INSTALLS += target + +contains(QT_CONFIG, opengles.) { + contains(QT_CONFIG, angle): \ + warning("Qt was built with ANGLE, which provides only OpenGL ES 2.0 on top of DirectX 9.0c") + error("This example requires Qt to be configured with -opengl desktop") +} diff --git a/examples/opengl/legacy/pbuffers2/pbuffers2.qrc b/examples/opengl/legacy/pbuffers2/pbuffers2.qrc new file mode 100644 index 0000000000..986f1ca385 --- /dev/null +++ b/examples/opengl/legacy/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> |
