tools/qmlscene/main.cpp

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  23 ** Alternatively, this file may be used under the terms of the GNU General
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  41
  42 #include <QtCore/qdebug.h>
  43 #include <QtCore/qabstractanimation.h>
  44 #include <QtGui/qapplication.h>
  45 #include <QtDeclarative/qdeclarative.h>
  46 #include <QtDeclarative/qdeclarativeengine.h>
  47 #include <QtDeclarative/qdeclarativecomponent.h>
  48 #include <QtQuick1/qdeclarativeview.h>
  49 #include <QtCore/qdir.h>
  50 #include <QtGui/QFormLayout>
  51 #include <QtGui/QComboBox>
  52 #include <QtGui/QCheckBox>
  53 #include <QtGui/QDialog>
  54 #include <QtGui/QDialogButtonBox>
  55 #include <QtGui/QFileDialog>
  56 #include <QtGui/QGraphicsView>
  57
  58 #include <QtDeclarative/qdeclarativecontext.h>
  59
  60 // ### This should be private API
  61 #include <qsgitem.h>
  62 #include <qsgview.h>
  63
  64 #define QT_NO_SCENEGRAPHITEM
  65
  66 #ifndef QT_NO_SCENEGRAPHITEM
  67 #include "scenegraphitem.h"
  68 #endif
  69
  70 #include <QtCore/qmath.h>
  71
  72 #ifdef QML_RUNTIME_TESTING
  73 class RenderStatistics
  74 {
  75 public:
  76     static void updateStats();
  77     static void printTotalStats();
  78 private:
  79     static QVector<qreal> timePerFrame;
  80     static QVector<int> timesPerFrames;
  81 };
  82
  83 QVector<qreal> RenderStatistics::timePerFrame;
  84 QVector<int> RenderStatistics::timesPerFrames;
  85
  86 void RenderStatistics::updateStats()
  87 {
  88     static QTime time;
  89     static int frames;
  90     static int lastTime;
  91
  92     if (frames == 0) {
  93         time.start();
  94     } else {
  95         int elapsed = time.elapsed();
  96         timesPerFrames.append(elapsed - lastTime);
  97         lastTime = elapsed;
  98
  99         if (elapsed > 5000) {
 100             qreal avgtime = elapsed / (qreal) frames;
 101             qreal var = 0;
 102             for (int i = 0; i < timesPerFrames.size(); ++i) {
 103                 qreal diff = timesPerFrames.at(i) - avgtime;
 104                 var += diff * diff;
 105             }
 106             var /= timesPerFrames.size();
 107
 108             qDebug("Average time per frame: %f ms (%i fps), std.dev: %f ms", avgtime, qRound(1000. / avgtime), qSqrt(var));
 109
 110             timePerFrame.append(avgtime);
 111             timesPerFrames.clear();
 112             time.start();
 113             lastTime = 0;
 114             frames = 0;
 115         }
 116     }
 117     ++frames;
 118 }
 119
 120 void RenderStatistics::printTotalStats()
 121 {
 122     int count = timePerFrame.count();
 123     if (count == 0)
 124         return;
 125
 126     qreal minTime = 0;
 127     qreal maxTime = 0;
 128     qreal avg = 0;
 129     for (int i = 0; i < count; ++i) {
 130         minTime = minTime == 0 ? timePerFrame.at(i) : qMin(minTime, timePerFrame.at(i));
 131         maxTime = qMax(maxTime, timePerFrame.at(i));
 132         avg += timePerFrame.at(i);
 133     }
 134     avg /= count;
 135
 136     qDebug(" ");
 137     qDebug("----- Statistics -----");
 138     qDebug("Average time per frame: %f ms (%i fps)", avg, qRound(1000. / avg));
 139     qDebug("Best time per frame: %f ms (%i fps)", minTime, int(1000 / minTime));
 140     qDebug("Worst time per frame: %f ms (%i fps)", maxTime, int(1000 / maxTime));
 141     qDebug("----------------------");
 142     qDebug(" ");
 143 }
 144 #endif
 145
 146
 147 static QGLFormat getFormat()
 148 {
 149     QGLFormat f = QGLFormat::defaultFormat();
 150     f.setSampleBuffers(!qApp->arguments().contains("--no-multisample"));
 151     f.setSwapInterval(qApp->arguments().contains("--nonblocking-swap") ? 0 : 1);
 152     f.setStereo(qApp->arguments().contains("--stereo"));
 153     return f;
 154 }
 155
 156 class MyQSGView : public QSGView
 157 {
 158 public:
 159     MyQSGView() : QSGView(getFormat())
 160     {
 161         setResizeMode(QSGView::SizeRootObjectToView);
 162     }
 163
 164 protected:
 165     void paintEvent(QPaintEvent *e) {
 166         QSGView::paintEvent(e);
 167
 168 #ifdef QML_RUNTIME_TESTING
 169 //        RenderStatistics::updateStats();
 170 #endif
 171
 172         static bool continuousUpdate = qApp->arguments().contains("--continuous-update");
 173         if (continuousUpdate)
 174             update();
 175     }
 176 };
 177
 178 class MyDeclarativeView: public QDeclarativeView
 179 {
 180 public:
 181     MyDeclarativeView(QWidget *parent = 0) : QDeclarativeView(parent)
 182     {
 183         setResizeMode(QDeclarativeView::SizeRootObjectToView);
 184     }
 185
 186 protected:
 187     void paintEvent(QPaintEvent *event)
 188     {
 189         QDeclarativeView::paintEvent(event);
 190
 191 #ifdef QML_RUNTIME_TESTING
 192         RenderStatistics::updateStats();
 193 #endif
 194
 195         static bool continuousUpdate = qApp->arguments().contains("--continuous-update");
 196         if (continuousUpdate)
 197             scene()->update();
 198     }
 199 };
 200
 201 #ifndef QT_NO_SCENEGRAPHITEM
 202 class MyGraphicsView: public QGraphicsView
 203 {
 204 public:
 205     MyGraphicsView(bool clip, QWidget *parent = 0) : QGraphicsView(parent)
 206     {
 207         setViewport(new QGLWidget(getFormat()));
 208         setScene(&scene);
 209         scene.addItem(&item);
 210         item.setFlag(QGraphicsItem::ItemClipsToShape, clip);
 211         QGraphicsTextItem *text;
 212         text = scene.addText(QLatin1String("Scene graph on graphics view."), QFont(QLatin1String("Times"), 10));
 213         text->setX(5);
 214         text->setY(5);
 215         text->setDefaultTextColor(Qt::black);
 216         text = scene.addText(QLatin1String("Scene graph on graphics view."), QFont(QLatin1String("Times"), 10));
 217         text->setX(4);
 218         text->setY(4);
 219         text->setDefaultTextColor(Qt::yellow);
 220     }
 221
 222     SceneGraphItem *sceneGraphItem() { return &item; }
 223
 224 protected:
 225     void paintEvent(QPaintEvent *event)
 226     {
 227         QGraphicsView::paintEvent(event);
 228
 229 #ifdef QML_RUNTIME_TESTING
 230         RenderStatistics::updateStats();
 231 #endif
 232
 233         static bool continuousUpdate = qApp->arguments().contains("--continuous-update");
 234         if (continuousUpdate)
 235             QGraphicsView::scene()->update();
 236     }
 237
 238     QGraphicsScene scene;
 239     SceneGraphItem item;
 240 };
 241 #endif
 242
 243 struct Options
 244 {
 245     Options()
 246         : originalQml(false)
 247         , originalQmlRaster(false)
 248         , maximized(false)
 249         , fullscreen(false)
 250         , scenegraphOnGraphicsview(false)
 251         , clip(false)
 252         , versionDetection(true)
 253         , vsync(true)
 254     {
 255     }
 256
 257     QUrl file;
 258     bool originalQml;
 259     bool originalQmlRaster;
 260     bool maximized;
 261     bool fullscreen;
 262     bool scenegraphOnGraphicsview;
 263     bool clip;
 264     bool versionDetection;
 265     bool vsync;
 266 };
 267
 268 #if defined(QMLSCENE_BUNDLE)
 269 Q_DECLARE_METATYPE(QFileInfo);
 270 QFileInfoList findQmlFiles(const QString &dirName)
 271 {
 272     QDir dir(dirName);
 273
 274     QFileInfoList ret;
 275     if (dir.exists()) {
 276         QFileInfoList fileInfos = dir.entryInfoList(QStringList() << "*.qml",
 277                                                     QDir::Files | QDir::AllDirs | QDir::NoDotAndDotDot);
 278
 279         foreach (QFileInfo fileInfo, fileInfos) {
 280             if (fileInfo.isDir())
 281                 ret += findQmlFiles(fileInfo.filePath());
 282             else if (fileInfo.fileName().length() > 0 && fileInfo.fileName().at(0).isLower())
 283                 ret.append(fileInfo);
 284         }
 285     }
 286
 287     return ret;
 288 }
 289
 290 static int displayOptionsDialog(Options *options)
 291 {
 292     QDialog dialog;
 293
 294     QFormLayout *layout = new QFormLayout(&dialog);
 295
 296     QComboBox *qmlFileComboBox = new QComboBox(&dialog);
 297     QFileInfoList fileInfos = findQmlFiles(":/bundle") + findQmlFiles("./qmlscene-resources");
 298
 299     foreach (QFileInfo fileInfo, fileInfos)
 300         qmlFileComboBox->addItem(fileInfo.dir().dirName() + "/" + fileInfo.fileName(), QVariant::fromValue(fileInfo));
 301
 302     QCheckBox *originalCheckBox = new QCheckBox(&dialog);
 303     originalCheckBox->setText("Use original QML viewer");
 304     originalCheckBox->setChecked(options->originalQml);
 305
 306     QCheckBox *fullscreenCheckBox = new QCheckBox(&dialog);
 307     fullscreenCheckBox->setText("Start fullscreen");
 308     fullscreenCheckBox->setChecked(options->fullscreen);
 309
 310     QCheckBox *maximizedCheckBox = new QCheckBox(&dialog);
 311     maximizedCheckBox->setText("Start maximized");
 312     maximizedCheckBox->setChecked(options->maximized);
 313
 314     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
 315                                                        Qt::Horizontal,
 316                                                        &dialog);
 317     QObject::connect(buttonBox, SIGNAL(accepted()), &dialog, SLOT(accept()));
 318     QObject::connect(buttonBox, SIGNAL(rejected()), &dialog, SLOT(reject()));
 319
 320     layout->addRow("Qml file:", qmlFileComboBox);
 321     layout->addWidget(originalCheckBox);
 322     layout->addWidget(maximizedCheckBox);
 323     layout->addWidget(fullscreenCheckBox);
 324     layout->addWidget(buttonBox);
 325
 326     int result = dialog.exec();
 327     if (result == QDialog::Accepted) {
 328         QVariant variant = qmlFileComboBox->itemData(qmlFileComboBox->currentIndex());
 329         QFileInfo fileInfo = variant.value<QFileInfo>();
 330
 331         if (fileInfo.canonicalFilePath().startsWith(":"))
 332             options->file = QUrl("qrc" + fileInfo.canonicalFilePath());
 333         else
 334             options->file = QUrl::fromLocalFile(fileInfo.canonicalFilePath());
 335         options->originalQml = originalCheckBox->isChecked();
 336         options->maximized = maximizedCheckBox->isChecked();
 337         options->fullscreen = fullscreenCheckBox->isChecked();
 338     }
 339     return result;
 340 }
 341 #endif
 342
 343 static void checkAndAdaptVersion(const QUrl &url)
 344 {
 345     if (!qgetenv("QMLSCENE_IMPORT_NAME").isEmpty()) {
 346         return;
 347     }
 348
 349     QString fileName = url.toLocalFile();
 350     if (fileName.isEmpty())
 351         return;
 352
 353     QFile f(fileName);
 354     if (!f.open(QFile::ReadOnly | QFile::Text)) {
 355         qWarning("qmlscene: failed to check version of file '%s', could not open...",
 356                  qPrintable(fileName));
 357         return;
 358     }
 359
 360     QRegExp quick1("^\\s*import +QtQuick +1\\.");
 361     QRegExp qt47("^\\s*import +Qt +4\\.7");
 362
 363     QString envToWrite;
 364     QString compat;
 365
 366     QTextStream stream(&f);
 367     bool codeFound= false;
 368     while (!codeFound && envToWrite.isEmpty()) {
 369         QString line = stream.readLine();
 370         if (line.contains("{"))
 371             codeFound = true;
 372         if (quick1.indexIn(line) >= 0) {
 373             envToWrite = QLatin1String("quick1");
 374             compat = QLatin1String("QtQuick 1.0");
 375         } else if (qt47.indexIn(line) >= 0) {
 376             envToWrite = QLatin1String("qt");
 377             compat = QLatin1String("Qt 4.7");
 378         }
 379     }
 380
 381     if (!envToWrite.isEmpty()) {
 382         qWarning("qmlscene: Autodetecting compatibility import \"%s\"...", qPrintable(compat));
 383         if (qgetenv("QMLSCENE_IMPORT_NAME").isEmpty())
 384             qputenv("QMLSCENE_IMPORT_NAME", envToWrite.toLatin1().constData());
 385     }
 386 }
 387
 388 static void displayFileDialog(Options *options)
 389 {
 390     QString fileName = QFileDialog::getOpenFileName(0, "Open QML file", QString(), "QML Files (*.qml)");
 391     if (!fileName.isEmpty()) {
 392         QFileInfo fi(fileName);
 393         options->file = QUrl::fromLocalFile(fi.canonicalFilePath());
 394     }
 395 }
 396
 397 static void loadDummyDataFiles(QDeclarativeEngine &engine, const QString& directory)
 398 {
 399     QDir dir(directory+"/dummydata", "*.qml");
 400     QStringList list = dir.entryList();
 401     for (int i = 0; i < list.size(); ++i) {
 402         QString qml = list.at(i);
 403         QFile f(dir.filePath(qml));
 404         f.open(QIODevice::ReadOnly);
 405         QByteArray data = f.readAll();
 406         QDeclarativeComponent comp(&engine);
 407         comp.setData(data, QUrl());
 408         QObject *dummyData = comp.create();
 409
 410         if(comp.isError()) {
 411             QList<QDeclarativeError> errors = comp.errors();
 412             foreach (const QDeclarativeError &error, errors) {
 413                 qWarning() << error;
 414             }
 415         }
 416
 417         if (dummyData) {
 418             qWarning() << "Loaded dummy data:" << dir.filePath(qml);
 419             qml.truncate(qml.length()-4);
 420             engine.rootContext()->setContextProperty(qml, dummyData);
 421             dummyData->setParent(&engine);
 422         }
 423     }
 424 }
 425
 426 static void usage()
 427 {
 428     qWarning("Usage: qmlscene [options] <filename>");
 429     qWarning(" ");
 430     qWarning(" options:");
 431     qWarning("  --maximized ............................... run maximized");
 432     qWarning("  --fullscreen .............................. run fullscreen");
 433     qWarning("  --original-qml ............................ run using QGraphicsView instead of scenegraph (OpenGL engine)");
 434     qWarning("  --original-qml-raster ..................... run using QGraphicsView instead of scenegraph (Raster engine)");
 435     qWarning("  --no-multisample .......................... Disable multisampling (anti-aliasing)");
 436     qWarning("  --continuous-update ....................... Continuously render the scene");
 437     qWarning("  --nonblocking-swap ........................ Do not wait for v-sync to swap buffers");
 438     qWarning("  --stereo .................................. Enable stereo on the GL context");
 439 #ifndef QT_NO_SCENEGRAPHITEM
 440     qWarning("  --sg-on-gv [--clip] ....................... Scenegraph on graphicsview (and clip to item)");
 441 #endif
 442     qWarning("  --no-version-detection .................... Do not try to detect the version of the .qml file");
 443     qWarning("  --no-vsync-animations ..................... Do not use vsync based animations");
 444
 445     qWarning(" ");
 446     exit(1);
 447 }
 448
 449 int main(int argc, char ** argv)
 450 {
 451 #ifdef Q_WS_X11
 452     QApplication::setAttribute(Qt::AA_X11InitThreads);
 453 #endif
 454
 455     Options options;
 456
 457     QStringList imports;
 458     for (int i = 1; i < argc; ++i) {
 459         if (*argv[i] != '-' && QFileInfo(argv[i]).exists())
 460             options.file = QUrl::fromLocalFile(argv[i]);
 461         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--original-qml"))
 462             options.originalQml = true;
 463         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--original-qml-raster"))
 464             options.originalQmlRaster = true;
 465         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--maximized"))
 466             options.maximized = true;
 467         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--fullscreen"))
 468             options.fullscreen = true;
 469         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--sg-on-gv"))
 470             options.scenegraphOnGraphicsview = true;
 471         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--clip"))
 472             options.clip = true;
 473         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--no-version-detection"))
 474             options.versionDetection = false;
 475         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("-i") && i + 1 < argc)
 476             imports.append(QString::fromLatin1(argv[++i]));
 477         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--no-vsync-animations"))
 478             options.vsync = false;
 479         else if (QString::fromLatin1(argv[i]).toLower() == QLatin1String("--help")
 480                  || QString::fromLatin1(argv[i]).toLower() == QLatin1String("-help")
 481                  || QString::fromLatin1(argv[i]).toLower() == QLatin1String("--h")
 482                  || QString::fromLatin1(argv[i]).toLower() == QLatin1String("-h"))
 483             usage();
 484     }
 485
 486     QApplication::setGraphicsSystem("raster");
 487
 488     QApplication app(argc, argv);
 489     app.setApplicationName("QtQmlViewer");
 490     app.setOrganizationName("Nokia");
 491     app.setOrganizationDomain("nokia.com");
 492
 493     if (options.file.isEmpty())
 494 #if defined(QMLSCENE_BUNDLE)
 495         displayOptionsDialog(&options);
 496 #else
 497         displayFileDialog(&options);
 498 #endif
 499
 500     QWidget *view = 0;
 501     QDeclarativeEngine *engine = 0;
 502
 503     int exitCode = 0;
 504
 505     if (!options.file.isEmpty()) {
 506 #ifndef QT_NO_SCENEGRAPHITEM
 507         if (options.scenegraphOnGraphicsview) {
 508             MyGraphicsView *gvView = new MyGraphicsView(options.clip);
 509             SceneGraphItem *item = gvView->sceneGraphItem();
 510             engine = item->engine();
 511             for (int i = 0; i < imports.size(); ++i)
 512                 engine->addImportPath(imports.at(i));
 513             view = gvView;
 514             if (options.file.isLocalFile()) {
 515                 QFileInfo fi(options.file.toLocalFile());
 516                 loadDummyDataFiles(*engine, fi.path());
 517             }
 518             item->setSource(options.file);
 519         } else
 520 #endif
 521         if (!options.originalQml && !options.originalQmlRaster) {
 522             if (options.versionDetection)
 523                 checkAndAdaptVersion(options.file);
 524             QSGView *qxView = new MyQSGView();
 525             qxView->setVSyncAnimations(options.vsync);
 526             engine = qxView->engine();
 527             for (int i = 0; i < imports.size(); ++i)
 528                 engine->addImportPath(imports.at(i));
 529             view = qxView;
 530             if (options.file.isLocalFile()) {
 531                 QFileInfo fi(options.file.toLocalFile());
 532                 loadDummyDataFiles(*engine, fi.path());
 533             }
 534             qxView->setSource(options.file);
 535
 536         } else {
 537             MyDeclarativeView *gvView = new MyDeclarativeView();
 538             engine = gvView->engine();
 539             for (int i = 0; i < imports.size(); ++i)
 540                 engine->addImportPath(imports.at(i));
 541             view = gvView;
 542             if (options.file.isLocalFile()) {
 543                 QFileInfo fi(options.file.toLocalFile());
 544                 loadDummyDataFiles(*engine, fi.path());
 545             }
 546             gvView->setSource(options.file);
 547             if (!options.originalQmlRaster) {
 548                 QGLWidget *viewport = new QGLWidget(getFormat());
 549                 gvView->setViewport(viewport);
 550             }
 551         }
 552
 553         QObject::connect(engine, SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit()));
 554
 555         if (options.fullscreen)
 556             view->showFullScreen();
 557         else if (options.maximized)
 558             view->showMaximized();
 559         else
 560             view->show();
 561
 562 #ifdef Q_WS_MAC
 563         view->raise();
 564 #endif
 565
 566         exitCode = app.exec();
 567
 568         delete view;
 569
 570 #ifdef QML_RUNTIME_TESTING
 571         RenderStatistics::printTotalStats();
 572 #endif
 573     }
 574
 575     return exitCode;
 576 }
 577