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/****************************************************************************
* *
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* * Copyright ( C ) 2016 Research In Motion .
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* * Copyright ( C ) 2019 The Qt Company Ltd .
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* * Contact : https : //www.qt.io/licensing/
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* *
* * This file is part of the tools applications of the Qt Toolkit .
* *
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* * $ QT_BEGIN_LICENSE : GPL - EXCEPT $
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* * Licensees holding valid commercial Qt licenses may use this file in
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* * information use the contact form at https : //www.qt.io/contact-us.
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* *
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* * GNU General Public License Usage
* * Alternatively , this file may be used under the terms of the GNU
* * General Public License version 3 as published by the Free Software
* * Foundation with exceptions as appearing in the file LICENSE . GPL3 - EXCEPT
* * included in the packaging of this file . Please review the following
* * information to ensure the GNU General Public License requirements will
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# include "conf.h"
# include <QCoreApplication>
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# ifdef QT_GUI_LIB
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# include <QGuiApplication>
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# include <QWindow>
# include <QFileOpenEvent>
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# include <QOpenGLContext>
# include <QOpenGLFunctions>
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# ifdef QT_WIDGETS_LIB
# include <QApplication>
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# endif // QT_WIDGETS_LIB
# endif // QT_GUI_LIB
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# include <QQmlApplicationEngine>
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# include <QQmlComponent>
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# include <QCommandLineOption>
# include <QCommandLineParser>
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# include <QDir>
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# include <QFile>
# include <QFileInfo>
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# include <QLoggingCategory>
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# include <QStringList>
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# include <QScopedPointer>
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# include <QDebug>
# include <QStandardPaths>
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# include <QTranslator>
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# include <QtGlobal>
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# include <QLibraryInfo>
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# include <qqml.h>
# include <qqmldebug.h>
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# include <qqmlfileselector.h>
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# include <private/qmemory_p.h>
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# include <private/qtqmlglobal_p.h>
# if QT_CONFIG(qml_animation)
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# include <private/qabstractanimation_p.h>
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# endif
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# include <cstdio>
# include <cstring>
# include <cstdlib>
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# include <memory>
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# define FILE_OPEN_EVENT_WAIT_TIME 3000 // ms
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enum QmlApplicationType {
QmlApplicationTypeUnknown
, QmlApplicationTypeCore
# ifdef QT_GUI_LIB
, QmlApplicationTypeGui
# ifdef QT_WIDGETS_LIB
, QmlApplicationTypeWidget
# endif // QT_WIDGETS_LIB
# endif // QT_GUI_LIB
} ;
static QmlApplicationType applicationType =
# ifndef QT_GUI_LIB
QmlApplicationTypeCore ;
# else
QmlApplicationTypeGui ;
# endif // QT_GUI_LIB
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static Config * conf = nullptr ;
static QQmlApplicationEngine * qae = nullptr ;
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# if defined(Q_OS_DARWIN) || defined(QT_GUI_LIB)
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static int exitTimerId = - 1 ;
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# endif
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static const QString iconResourcePath ( QStringLiteral ( " :/qt-project.org/QmlRuntime/resources/qml-64.png " ) ) ;
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static const QString confResourcePath ( QStringLiteral ( " :/qt-project.org/QmlRuntime/conf/ " ) ) ;
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static bool verboseMode = false ;
static bool quietMode = false ;
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static void loadConf ( const QString & override , bool quiet ) // Terminates app on failure
{
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const QString defaultFileName = QLatin1String ( " default.qml " ) ;
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QUrl settingsUrl ;
bool builtIn = false ; //just for keeping track of the warning
if ( override . isEmpty ( ) ) {
QFileInfo fi ;
fi . setFile ( QStandardPaths : : locate ( QStandardPaths : : DataLocation , defaultFileName ) ) ;
if ( fi . exists ( ) ) {
settingsUrl = QUrl : : fromLocalFile ( fi . absoluteFilePath ( ) ) ;
} else {
// ### If different built-in configs are needed per-platform, just apply QFileSelector to the qrc conf.qml path
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fi . setFile ( confResourcePath + defaultFileName ) ;
settingsUrl = QUrl : : fromLocalFile ( fi . absoluteFilePath ( ) ) ;
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builtIn = true ;
}
} else {
QFileInfo fi ;
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fi . setFile ( confResourcePath + override + QLatin1String ( " .qml " ) ) ;
if ( fi . exists ( ) ) {
settingsUrl = QUrl : : fromLocalFile ( fi . absoluteFilePath ( ) ) ;
builtIn = true ;
} else {
fi . setFile ( override ) ;
if ( ! fi . exists ( ) ) {
printf ( " qml: Couldn't find required configuration file: %s \n " ,
qPrintable ( QDir : : toNativeSeparators ( fi . absoluteFilePath ( ) ) ) ) ;
exit ( 1 ) ;
}
settingsUrl = QUrl : : fromLocalFile ( fi . absoluteFilePath ( ) ) ;
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}
}
if ( ! quiet ) {
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printf ( " qml: %s \n " , QLibraryInfo : : build ( ) ) ;
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if ( builtIn ) {
printf ( " qml: Using built-in configuration: %s \n " ,
qPrintable ( override . isEmpty ( ) ? defaultFileName : override ) ) ;
} else {
printf ( " qml: Using configuration: %s \n " ,
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qPrintable ( settingsUrl . isLocalFile ( )
? QDir : : toNativeSeparators ( settingsUrl . toLocalFile ( ) )
: settingsUrl . toString ( ) ) ) ;
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}
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}
// TODO: When we have better engine control, ban QtQuick* imports on this engine
QQmlEngine e2 ;
QQmlComponent c2 ( & e2 , settingsUrl ) ;
conf = qobject_cast < Config * > ( c2 . create ( ) ) ;
if ( ! conf ) {
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printf ( " qml: Error loading configuration file: %s \n " , qPrintable ( c2 . errorString ( ) ) ) ;
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exit ( 1 ) ;
}
}
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void noFilesGiven ( )
{
if ( ! quietMode )
printf ( " qml: No files specified. Terminating. \n " ) ;
exit ( 1 ) ;
}
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static void listConfFiles ( )
{
QDir confResourceDir ( confResourcePath ) ;
printf ( " %s \n " , qPrintable ( QCoreApplication : : translate ( " main " , " Built-in configurations: " ) ) ) ;
for ( const QFileInfo & fi : confResourceDir . entryInfoList ( QDir : : Files ) )
printf ( " %s \n " , qPrintable ( fi . baseName ( ) ) ) ;
exit ( 0 ) ;
}
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# ifdef QT_GUI_LIB
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// Loads qml after receiving a QFileOpenEvent
class LoaderApplication : public QGuiApplication
{
public :
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LoaderApplication ( int & argc , char * * argv ) : QGuiApplication ( argc , argv )
{
setWindowIcon ( QIcon ( iconResourcePath ) ) ;
}
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bool event ( QEvent * ev ) override
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{
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if ( ev - > type ( ) = = QEvent : : FileOpen ) {
if ( exitTimerId > = 0 ) {
killTimer ( exitTimerId ) ;
exitTimerId = - 1 ;
}
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qae - > load ( static_cast < QFileOpenEvent * > ( ev ) - > url ( ) ) ;
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}
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else
return QGuiApplication : : event ( ev ) ;
return true ;
}
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void timerEvent ( QTimerEvent * ) override {
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noFilesGiven ( ) ;
}
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} ;
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# endif // QT_GUI_LIB
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// Listens to the appEngine signals to determine if all files failed to load
class LoadWatcher : public QObject
{
Q_OBJECT
public :
LoadWatcher ( QQmlApplicationEngine * e , int expected )
: QObject ( e )
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, expectedFileCount ( expected )
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{
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connect ( e , & QQmlApplicationEngine : : objectCreated , this , & LoadWatcher : : checkFinished ) ;
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// QQmlApplicationEngine also connects quit() to QCoreApplication::quit
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// and exit() to QCoreApplication::exit but if called before exec()
// then QCoreApplication::quit or QCoreApplication::exit does nothing
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connect ( e , & QQmlEngine : : quit , this , & LoadWatcher : : quit ) ;
connect ( e , & QQmlEngine : : exit , this , & LoadWatcher : : exit ) ;
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}
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int returnCode = 0 ;
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bool earlyExit = false ;
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public Q_SLOTS :
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void checkFinished ( QObject * o , const QUrl & url )
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{
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Q_UNUSED ( url )
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if ( o ) {
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checkForWindow ( o ) ;
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if ( conf & & qae )
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for ( PartialScene * ps : qAsConst ( conf - > completers ) )
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if ( o - > inherits ( ps - > itemType ( ) . toUtf8 ( ) . constData ( ) ) )
contain ( o , ps - > container ( ) ) ;
}
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if ( haveWindow )
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return ;
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if ( ! - - expectedFileCount ) {
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printf ( " qml: Did not load any objects, exiting. \n " ) ;
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std : : exit ( 2 ) ; // Different return code from qFatal
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}
}
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void quit ( ) {
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// Will be checked before calling exec()
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earlyExit = true ;
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returnCode = 0 ;
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}
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void exit ( int retCode ) {
earlyExit = true ;
returnCode = retCode ;
}
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# if defined(QT_GUI_LIB) && QT_CONFIG(opengl)
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void onOpenGlContextCreated ( QOpenGLContext * context ) ;
# endif
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private :
void contain ( QObject * o , const QUrl & containPath ) ;
void checkForWindow ( QObject * o ) ;
private :
bool haveWindow = false ;
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int expectedFileCount ;
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} ;
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void LoadWatcher : : contain ( QObject * o , const QUrl & containPath )
{
QQmlComponent c ( qae , containPath ) ;
QObject * o2 = c . create ( ) ;
if ( ! o2 )
return ;
checkForWindow ( o2 ) ;
bool success = false ;
int idx ;
if ( ( idx = o2 - > metaObject ( ) - > indexOfProperty ( " containedObject " ) ) ! = - 1 )
success = o2 - > metaObject ( ) - > property ( idx ) . write ( o2 , QVariant : : fromValue < QObject * > ( o ) ) ;
if ( ! success )
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o - > setParent ( o2 ) ; // Set QObject parent, and assume container will react as needed
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}
void LoadWatcher : : checkForWindow ( QObject * o )
{
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# if defined(QT_GUI_LIB) && QT_CONFIG(opengl)
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if ( o - > isWindowType ( ) & & o - > inherits ( " QQuickWindow " ) ) {
haveWindow = true ;
if ( verboseMode )
connect ( o , SIGNAL ( openglContextCreated ( QOpenGLContext * ) ) ,
this , SLOT ( onOpenGlContextCreated ( QOpenGLContext * ) ) ) ;
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}
# else
Q_UNUSED ( o )
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# endif // QT_GUI_LIB && !QT_NO_OPENGL
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}
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# if defined(QT_GUI_LIB) && QT_CONFIG(opengl)
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void LoadWatcher : : onOpenGlContextCreated ( QOpenGLContext * context )
{
context - > makeCurrent ( qobject_cast < QWindow * > ( sender ( ) ) ) ;
QOpenGLFunctions functions ( context ) ;
QByteArray output = " Vendor : " ;
output + = reinterpret_cast < const char * > ( functions . glGetString ( GL_VENDOR ) ) ;
output + = " \n Renderer: " ;
output + = reinterpret_cast < const char * > ( functions . glGetString ( GL_RENDERER ) ) ;
output + = " \n Version : " ;
output + = reinterpret_cast < const char * > ( functions . glGetString ( GL_VERSION ) ) ;
output + = " \n Language: " ;
output + = reinterpret_cast < const char * > ( functions . glGetString ( GL_SHADING_LANGUAGE_VERSION ) ) ;
puts ( output . constData ( ) ) ;
context - > doneCurrent ( ) ;
}
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# endif // QT_GUI_LIB && !QT_NO_OPENGL
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void quietMessageHandler ( QtMsgType type , const QMessageLogContext & ctxt , const QString & msg )
{
Q_UNUSED ( ctxt ) ;
Q_UNUSED ( msg ) ;
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// Doesn't print anything
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switch ( type ) {
case QtFatalMsg :
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exit ( - 1 ) ;
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case QtCriticalMsg :
case QtDebugMsg :
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case QtInfoMsg :
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case QtWarningMsg :
;
}
}
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// Called before application initialization
static void getAppFlags ( int argc , char * * argv )
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{
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# ifdef QT_GUI_LIB
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for ( int i = 0 ; i < argc ; i + + ) {
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if ( ! strcmp ( argv [ i ] , " --apptype " ) | | ! strcmp ( argv [ i ] , " -a " ) | | ! strcmp ( argv [ i ] , " -apptype " ) ) {
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applicationType = QmlApplicationTypeUnknown ;
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if ( i + 1 < argc ) {
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+ + i ;
if ( ! strcmp ( argv [ i ] , " core " ) )
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applicationType = QmlApplicationTypeCore ;
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else if ( ! strcmp ( argv [ i ] , " gui " ) )
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applicationType = QmlApplicationTypeGui ;
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# ifdef QT_WIDGETS_LIB
else if ( ! strcmp ( argv [ i ] , " widget " ) )
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applicationType = QmlApplicationTypeWidget ;
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# endif // QT_WIDGETS_LIB
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}
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} else if ( ! strcmp ( argv [ i ] , " -desktop " ) | | ! strcmp ( argv [ i ] , " --desktop " ) ) {
QCoreApplication : : setAttribute ( Qt : : AA_UseDesktopOpenGL ) ;
} else if ( ! strcmp ( argv [ i ] , " -gles " ) | | ! strcmp ( argv [ i ] , " --gles " ) ) {
QCoreApplication : : setAttribute ( Qt : : AA_UseOpenGLES ) ;
} else if ( ! strcmp ( argv [ i ] , " -software " ) | | ! strcmp ( argv [ i ] , " --software " ) ) {
QCoreApplication : : setAttribute ( Qt : : AA_UseSoftwareOpenGL ) ;
} else if ( ! strcmp ( argv [ i ] , " -scaling " ) | | ! strcmp ( argv [ i ] , " --scaling " ) ) {
QCoreApplication : : setAttribute ( Qt : : AA_EnableHighDpiScaling ) ;
} else if ( ! strcmp ( argv [ i ] , " -no-scaling " ) | | ! strcmp ( argv [ i ] , " --no-scaling " ) ) {
QCoreApplication : : setAttribute ( Qt : : AA_DisableHighDpiScaling ) ;
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}
}
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# else
Q_UNUSED ( argc )
Q_UNUSED ( argv )
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# endif // QT_GUI_LIB
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}
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bool getFileSansBangLine ( const QString & path , QByteArray & output )
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{
QFile f ( path ) ;
if ( ! f . open ( QFile : : ReadOnly | QFile : : Text ) )
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return false ;
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output = f . readAll ( ) ;
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if ( output . startsWith ( " #! " ) ) { //Remove first line in this case (except \n, to avoid disturbing line count)
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output . remove ( 0 , output . indexOf ( ' \n ' ) ) ;
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return true ;
}
return false ;
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}
static void loadDummyDataFiles ( QQmlEngine & engine , const QString & directory )
{
QDir dir ( directory + " /dummydata " , " *.qml " ) ;
QStringList list = dir . entryList ( ) ;
for ( int i = 0 ; i < list . size ( ) ; + + i ) {
QString qml = list . at ( i ) ;
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QQmlComponent comp ( & engine , dir . filePath ( qml ) ) ;
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QObject * dummyData = comp . create ( ) ;
if ( comp . isError ( ) ) {
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const QList < QQmlError > errors = comp . errors ( ) ;
for ( const QQmlError & error : errors )
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qWarning ( ) < < error ;
}
if ( dummyData & & ! quietMode ) {
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printf ( " qml: Loaded dummy data: %s \n " , qPrintable ( dir . filePath ( qml ) ) ) ;
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qml . truncate ( qml . length ( ) - 4 ) ;
engine . rootContext ( ) - > setContextProperty ( qml , dummyData ) ;
dummyData - > setParent ( & engine ) ;
}
}
}
int main ( int argc , char * argv [ ] )
{
getAppFlags ( argc , argv ) ;
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std : : unique_ptr < QCoreApplication > app ;
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switch ( applicationType ) {
# ifdef QT_GUI_LIB
case QmlApplicationTypeGui :
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app = qt_make_unique < LoaderApplication > ( argc , argv ) ;
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break ;
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# ifdef QT_WIDGETS_LIB
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case QmlApplicationTypeWidget :
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app = qt_make_unique < QApplication > ( argc , argv ) ;
static_cast < QApplication * > ( app . get ( ) ) - > setWindowIcon ( QIcon ( iconResourcePath ) ) ;
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break ;
# endif // QT_WIDGETS_LIB
# endif // QT_GUI_LIB
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case QmlApplicationTypeCore :
Q_FALLTHROUGH ( ) ;
default : // QmlApplicationTypeUnknown: not allowed, but we'll exit after checking apptypeOption below
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app = qt_make_unique < QCoreApplication > ( argc , argv ) ;
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break ;
}
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app - > setApplicationName ( " Qml Runtime " ) ;
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app - > setOrganizationName ( " QtProject " ) ;
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app - > setOrganizationDomain ( " qt-project.org " ) ;
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QCoreApplication : : setApplicationVersion ( QLatin1String ( QT_VERSION_STR ) ) ;
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qmlRegisterTypesAndRevisions < Config , PartialScene > ( " QmlRuntime.Config " , 1 ) ;
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QQmlApplicationEngine e ;
QStringList files ;
QString confFile ;
QString translationFile ;
QString dummyDir ;
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// Handle main arguments
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QCommandLineParser parser ;
parser . setSingleDashWordOptionMode ( QCommandLineParser : : ParseAsLongOptions ) ;
parser . setOptionsAfterPositionalArgumentsMode ( QCommandLineParser : : ParseAsPositionalArguments ) ;
const QCommandLineOption helpOption = parser . addHelpOption ( ) ;
const QCommandLineOption versionOption = parser . addVersionOption ( ) ;
# ifdef QT_GUI_LIB
QCommandLineOption apptypeOption ( QStringList ( ) < < QStringLiteral ( " a " ) < < QStringLiteral ( " apptype " ) ,
QCoreApplication : : translate ( " main " , " Select which application class to use. Default is gui. " ) ,
# ifdef QT_WIDGETS_LIB
QStringLiteral ( " core|gui|widget " ) ) ;
# else
QStringLiteral ( " core|gui " ) ) ;
# endif // QT_WIDGETS_LIB
parser . addOption ( apptypeOption ) ; // Just for the help text... we've already handled this argument above
# endif // QT_GUI_LIB
QCommandLineOption importOption ( QStringLiteral ( " I " ) ,
QCoreApplication : : translate ( " main " , " Prepend the given path to the import paths. " ) , QStringLiteral ( " path " ) ) ;
parser . addOption ( importOption ) ;
QCommandLineOption qmlFileOption ( QStringLiteral ( " f " ) ,
QCoreApplication : : translate ( " main " , " Load the given file as a QML file. " ) , QStringLiteral ( " file " ) ) ;
parser . addOption ( qmlFileOption ) ;
QCommandLineOption configOption ( QStringList ( ) < < QStringLiteral ( " c " ) < < QStringLiteral ( " config " ) ,
2019-04-24 19:05:32 +00:00
QCoreApplication : : translate ( " main " , " Load the given built-in configuration or configuration file. " ) , QStringLiteral ( " file " ) ) ;
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parser . addOption ( configOption ) ;
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QCommandLineOption listConfOption ( QStringList ( ) < < QStringLiteral ( " list-conf " ) ,
QCoreApplication : : translate ( " main " , " List the built-in configurations. " ) ) ;
parser . addOption ( listConfOption ) ;
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QCommandLineOption translationOption ( QStringLiteral ( " translation " ) ,
QCoreApplication : : translate ( " main " , " Load the given file as the translations file. " ) , QStringLiteral ( " file " ) ) ;
parser . addOption ( translationOption ) ;
QCommandLineOption dummyDataOption ( QStringLiteral ( " dummy-data " ) ,
QCoreApplication : : translate ( " main " , " Load QML files from the given directory as context properties. " ) , QStringLiteral ( " file " ) ) ;
parser . addOption ( dummyDataOption ) ;
2020-01-15 09:55:27 +00:00
# ifdef QT_GUI_LIB
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// OpenGL options
QCommandLineOption glDesktopOption ( QStringLiteral ( " desktop " ) ,
QCoreApplication : : translate ( " main " , " Force use of desktop OpenGL (AA_UseDesktopOpenGL). " ) ) ;
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parser . addOption ( glDesktopOption ) ; // Just for the help text... we've already handled this argument above
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QCommandLineOption glEsOption ( QStringLiteral ( " gles " ) ,
QCoreApplication : : translate ( " main " , " Force use of GLES (AA_UseOpenGLES). " ) ) ;
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parser . addOption ( glEsOption ) ; // Just for the help text... we've already handled this argument above
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QCommandLineOption glSoftwareOption ( QStringLiteral ( " software " ) ,
QCoreApplication : : translate ( " main " , " Force use of software rendering (AA_UseSoftwareOpenGL). " ) ) ;
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parser . addOption ( glSoftwareOption ) ; // Just for the help text... we've already handled this argument above
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QCommandLineOption scalingOption ( QStringLiteral ( " scaling " ) ,
QCoreApplication : : translate ( " main " , " Enable High DPI scaling (AA_EnableHighDpiScaling). " ) ) ;
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parser . addOption ( scalingOption ) ; // Just for the help text... we've already handled this argument above
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QCommandLineOption noScalingOption ( QStringLiteral ( " no-scaling " ) ,
QCoreApplication : : translate ( " main " , " Disable High DPI scaling (AA_DisableHighDpiScaling). " ) ) ;
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parser . addOption ( noScalingOption ) ; // Just for the help text... we've already handled this argument above
# endif // QT_GUI_LIB
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// Debugging and verbosity options
QCommandLineOption quietOption ( QStringLiteral ( " quiet " ) ,
QCoreApplication : : translate ( " main " , " Suppress all output. " ) ) ;
parser . addOption ( quietOption ) ;
QCommandLineOption verboseOption ( QStringLiteral ( " verbose " ) ,
QCoreApplication : : translate ( " main " , " Print information about what qml is doing, like specific file URLs being loaded. " ) ) ;
parser . addOption ( verboseOption ) ;
QCommandLineOption slowAnimationsOption ( QStringLiteral ( " slow-animations " ) ,
QCoreApplication : : translate ( " main " , " Run all animations in slow motion. " ) ) ;
parser . addOption ( slowAnimationsOption ) ;
QCommandLineOption fixedAnimationsOption ( QStringLiteral ( " fixed-animations " ) ,
QCoreApplication : : translate ( " main " , " Run animations off animation tick rather than wall time. " ) ) ;
parser . addOption ( fixedAnimationsOption ) ;
Add the graphics api independent scenegraph port
Opt in via environment variables:
QSG_RHI=1 -> enable using QRhi instead of GL
QSG_RHI_BACKEND -> set to vulkan, metal, d3d11, gl to override the default
(the default is d3d11 on Windows, metal on Mac, gl elsewhere)
Or force a given rhi backend via the existing
QQuickWindow::setSceneGraphBackend().
Otherwise the default behavior is the same as before, the rhi code path
is never active by default.
-no-opengl builds are supported in the sense that they work and default
to the software backend. However, the rhi code path cannot currently be
used in such builds, even though QRhi from qtbase is fully functional
with Vulkan, D3D, or Metal even when qtbase was configured with
-no-opengl. This cannot be utilized by Quick atm due to OpenGL usage
being all over the place in the sources corresponding to the default
backend, and those host the rhi code path as well. This will be cleaned up
hopefully in Qt 6, with the removal all direct OpenGL usage.
Other env.vars.:
QSG_RHI_DEBUG_LAYER=1 -> enable D3D debug or Vulkan validation layer
(assuming the system is set up for this)
QSG_RHI_SHADEREFFECT_DEBUG=1 -> print stuff from ShaderEffect
QSG_SAMPLES=1,2,4,... -> MSAA sample count (but QSurfaceFormat works too)
QT_D3D_ADAPTER_INDEX=0,1,... -> D3D adapter index
QT_VK_PHYSICAL_DEVICE_INDEX=0,1,... -> Vulkan physical device index
QSG_RHI_UINT32_INDEX=1 -> always use uint index data (both
merged/unmerged, convert when needed - with some rhi backends this is
implicit)
QSG_RENDER_LOOP -> to override the render loop as usual. The default
with RHI is threaded for Metal, threaded for Vulkan on Windows, basic
for Vulkan on Linux and Android (to be checked later), while the existing
rules apply for OpenGL.
Not supported when running with QRhi:
- particles
- compressed atlases (though this is transparent to the apps)
- QSGRenderNode
- QQuickRenderControl
- QQuickFramebufferObject
- certain QQuickWindow functionality that depends directly on OpenGL
- anisotropic filtering for textures
- native text may lack some gamma correction
- QSGEngine applicability unclear
- some QML profiler logs may be incorrect or irrelevant
Change-Id: I7822e99ad79e342e4166275da6e9e66498d76521
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2019-04-23 07:40:59 +00:00
QCommandLineOption rhiOption ( QStringList ( ) < < QStringLiteral ( " r " ) < < QStringLiteral ( " rhi " ) ,
QCoreApplication : : translate ( " main " , " Use the Qt graphics abstraction (RHI) instead of OpenGL directly. "
" Backend is one of: default, vulkan, metal, d3d11, gl " ) ,
QStringLiteral ( " backend " ) ) ;
parser . addOption ( rhiOption ) ;
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QCommandLineOption selectorOption ( QStringLiteral ( " S " ) , QCoreApplication : : translate ( " main " ,
" Add selector to the list of QQmlFileSelectors. " ) , QStringLiteral ( " selector " ) ) ;
parser . addOption ( selectorOption ) ;
Add the graphics api independent scenegraph port
Opt in via environment variables:
QSG_RHI=1 -> enable using QRhi instead of GL
QSG_RHI_BACKEND -> set to vulkan, metal, d3d11, gl to override the default
(the default is d3d11 on Windows, metal on Mac, gl elsewhere)
Or force a given rhi backend via the existing
QQuickWindow::setSceneGraphBackend().
Otherwise the default behavior is the same as before, the rhi code path
is never active by default.
-no-opengl builds are supported in the sense that they work and default
to the software backend. However, the rhi code path cannot currently be
used in such builds, even though QRhi from qtbase is fully functional
with Vulkan, D3D, or Metal even when qtbase was configured with
-no-opengl. This cannot be utilized by Quick atm due to OpenGL usage
being all over the place in the sources corresponding to the default
backend, and those host the rhi code path as well. This will be cleaned up
hopefully in Qt 6, with the removal all direct OpenGL usage.
Other env.vars.:
QSG_RHI_DEBUG_LAYER=1 -> enable D3D debug or Vulkan validation layer
(assuming the system is set up for this)
QSG_RHI_SHADEREFFECT_DEBUG=1 -> print stuff from ShaderEffect
QSG_SAMPLES=1,2,4,... -> MSAA sample count (but QSurfaceFormat works too)
QT_D3D_ADAPTER_INDEX=0,1,... -> D3D adapter index
QT_VK_PHYSICAL_DEVICE_INDEX=0,1,... -> Vulkan physical device index
QSG_RHI_UINT32_INDEX=1 -> always use uint index data (both
merged/unmerged, convert when needed - with some rhi backends this is
implicit)
QSG_RENDER_LOOP -> to override the render loop as usual. The default
with RHI is threaded for Metal, threaded for Vulkan on Windows, basic
for Vulkan on Linux and Android (to be checked later), while the existing
rules apply for OpenGL.
Not supported when running with QRhi:
- particles
- compressed atlases (though this is transparent to the apps)
- QSGRenderNode
- QQuickRenderControl
- QQuickFramebufferObject
- certain QQuickWindow functionality that depends directly on OpenGL
- anisotropic filtering for textures
- native text may lack some gamma correction
- QSGEngine applicability unclear
- some QML profiler logs may be incorrect or irrelevant
Change-Id: I7822e99ad79e342e4166275da6e9e66498d76521
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2019-04-23 07:40:59 +00:00
2019-04-16 15:25:36 +00:00
// Positional arguments
parser . addPositionalArgument ( " files " ,
QCoreApplication : : translate ( " main " , " Any number of QML files can be loaded. They will share the same engine. " ) , " [files...] " ) ;
parser . addPositionalArgument ( " args " ,
QCoreApplication : : translate ( " main " , " Arguments after '--' are ignored, but passed through to the application.arguments variable in QML. " ) , " [-- args...] " ) ;
if ( ! parser . parse ( QCoreApplication : : arguments ( ) ) ) {
qWarning ( ) < < parser . errorText ( ) ;
exit ( 1 ) ;
}
if ( parser . isSet ( versionOption ) )
parser . showVersion ( ) ;
if ( parser . isSet ( helpOption ) )
parser . showHelp ( ) ;
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if ( parser . isSet ( listConfOption ) )
listConfFiles ( ) ;
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if ( applicationType = = QmlApplicationTypeUnknown ) {
# ifdef QT_WIDGETS_LIB
qWarning ( ) < < QCoreApplication : : translate ( " main " , " --apptype must be followed by one of the following: core gui widget \n " ) ;
# else
qWarning ( ) < < QCoreApplication : : translate ( " main " , " --apptype must be followed by one of the following: core gui \n " ) ;
# endif // QT_WIDGETS_LIB
parser . showHelp ( ) ;
}
if ( parser . isSet ( verboseOption ) )
verboseMode = true ;
if ( parser . isSet ( quietOption ) ) {
quietMode = true ;
verboseMode = false ;
}
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# if QT_CONFIG(qml_animation)
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if ( parser . isSet ( slowAnimationsOption ) )
QUnifiedTimer : : instance ( ) - > setSlowModeEnabled ( true ) ;
if ( parser . isSet ( fixedAnimationsOption ) )
QUnifiedTimer : : instance ( ) - > setConsistentTiming ( true ) ;
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# endif
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for ( const QString & importPath : parser . values ( importOption ) )
e . addImportPath ( importPath ) ;
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QStringList customSelectors ;
for ( const QString & selector : parser . values ( selectorOption ) )
customSelectors . append ( selector ) ;
if ( ! customSelectors . isEmpty ( ) ) {
QQmlFileSelector * selector = QQmlFileSelector : : get ( & e ) ;
selector - > setExtraSelectors ( customSelectors ) ;
}
2019-04-16 15:25:36 +00:00
files < < parser . values ( qmlFileOption ) ;
if ( parser . isSet ( configOption ) )
confFile = parser . value ( configOption ) ;
if ( parser . isSet ( translationOption ) )
translationFile = parser . value ( translationOption ) ;
if ( parser . isSet ( dummyDataOption ) )
dummyDir = parser . value ( dummyDataOption ) ;
Add the graphics api independent scenegraph port
Opt in via environment variables:
QSG_RHI=1 -> enable using QRhi instead of GL
QSG_RHI_BACKEND -> set to vulkan, metal, d3d11, gl to override the default
(the default is d3d11 on Windows, metal on Mac, gl elsewhere)
Or force a given rhi backend via the existing
QQuickWindow::setSceneGraphBackend().
Otherwise the default behavior is the same as before, the rhi code path
is never active by default.
-no-opengl builds are supported in the sense that they work and default
to the software backend. However, the rhi code path cannot currently be
used in such builds, even though QRhi from qtbase is fully functional
with Vulkan, D3D, or Metal even when qtbase was configured with
-no-opengl. This cannot be utilized by Quick atm due to OpenGL usage
being all over the place in the sources corresponding to the default
backend, and those host the rhi code path as well. This will be cleaned up
hopefully in Qt 6, with the removal all direct OpenGL usage.
Other env.vars.:
QSG_RHI_DEBUG_LAYER=1 -> enable D3D debug or Vulkan validation layer
(assuming the system is set up for this)
QSG_RHI_SHADEREFFECT_DEBUG=1 -> print stuff from ShaderEffect
QSG_SAMPLES=1,2,4,... -> MSAA sample count (but QSurfaceFormat works too)
QT_D3D_ADAPTER_INDEX=0,1,... -> D3D adapter index
QT_VK_PHYSICAL_DEVICE_INDEX=0,1,... -> Vulkan physical device index
QSG_RHI_UINT32_INDEX=1 -> always use uint index data (both
merged/unmerged, convert when needed - with some rhi backends this is
implicit)
QSG_RENDER_LOOP -> to override the render loop as usual. The default
with RHI is threaded for Metal, threaded for Vulkan on Windows, basic
for Vulkan on Linux and Android (to be checked later), while the existing
rules apply for OpenGL.
Not supported when running with QRhi:
- particles
- compressed atlases (though this is transparent to the apps)
- QSGRenderNode
- QQuickRenderControl
- QQuickFramebufferObject
- certain QQuickWindow functionality that depends directly on OpenGL
- anisotropic filtering for textures
- native text may lack some gamma correction
- QSGEngine applicability unclear
- some QML profiler logs may be incorrect or irrelevant
Change-Id: I7822e99ad79e342e4166275da6e9e66498d76521
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2019-04-23 07:40:59 +00:00
if ( parser . isSet ( rhiOption ) ) {
qputenv ( " QSG_RHI " , " 1 " ) ;
const QString rhiBackend = parser . value ( rhiOption ) ;
if ( rhiBackend = = QLatin1String ( " default " ) )
qunsetenv ( " QSG_RHI_BACKEND " ) ;
else
qputenv ( " QSG_RHI_BACKEND " , rhiBackend . toLatin1 ( ) ) ;
}
2019-04-16 15:25:36 +00:00
for ( QString posArg : parser . positionalArguments ( ) ) {
if ( posArg = = QLatin1String ( " -- " ) )
break ;
else
files < < posArg ;
2012-12-21 23:42:47 +00:00
}
2016-11-16 13:22:36 +00:00
# if QT_CONFIG(translation)
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// Need to be installed before QQmlApplicationEngine's automatic translation loading
// (qt_ translations are loaded there)
if ( ! translationFile . isEmpty ( ) ) {
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QTranslator translator ;
if ( translator . load ( translationFile ) ) {
app - > installTranslator ( & translator ) ;
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if ( verboseMode )
printf ( " qml: Loaded translation file %s \n " , qPrintable ( QDir : : toNativeSeparators ( translationFile ) ) ) ;
2012-12-21 23:42:47 +00:00
} else {
if ( ! quietMode )
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printf ( " qml: Could not load the translation file %s \n " , qPrintable ( QDir : : toNativeSeparators ( translationFile ) ) ) ;
2012-12-21 23:42:47 +00:00
}
}
# else
if ( ! translationFile . isEmpty ( ) & & ! quietMode )
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printf ( " qml: Translation file specified, but Qt built without translation support. \n " ) ;
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# endif
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if ( quietMode ) {
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qInstallMessageHandler ( quietMessageHandler ) ;
2019-04-23 13:20:15 +00:00
QLoggingCategory : : setFilterRules ( QStringLiteral ( " *=false " ) ) ;
}
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if ( files . count ( ) < = 0 ) {
2017-04-12 13:45:18 +00:00
# if defined(Q_OS_DARWIN)
2013-11-18 14:57:08 +00:00
if ( applicationType = = QmlApplicationTypeGui )
2019-09-30 08:53:49 +00:00
exitTimerId = static_cast < LoaderApplication * > ( app . get ( ) ) - > startTimer ( FILE_OPEN_EVENT_WAIT_TIME ) ;
2013-11-18 14:57:08 +00:00
else
# endif
noFilesGiven ( ) ;
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}
qae = & e ;
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loadConf ( confFile , ! verboseMode ) ;
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2019-01-14 08:42:29 +00:00
// Load files
2015-03-11 05:25:14 +00:00
QScopedPointer < LoadWatcher > lw ( new LoadWatcher ( & e , files . count ( ) ) ) ;
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2014-03-01 06:28:29 +00:00
// Load dummy data before loading QML-files
if ( ! dummyDir . isEmpty ( ) & & QFileInfo ( dummyDir ) . isDir ( ) )
loadDummyDataFiles ( e , dummyDir ) ;
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for ( const QString & path : qAsConst ( files ) ) {
2017-03-15 10:16:20 +00:00
QUrl url = QUrl : : fromUserInput ( path , QDir : : currentPath ( ) , QUrl : : AssumeLocalFile ) ;
2017-01-02 13:04:48 +00:00
if ( verboseMode )
printf ( " qml: loading %s \n " , qPrintable ( url . toString ( ) ) ) ;
QByteArray strippedFile ;
if ( getFileSansBangLine ( path , strippedFile ) )
2019-01-14 08:42:29 +00:00
// QQmlComponent won't resolve it for us: it doesn't know it's a valid file if we loadData
e . loadData ( strippedFile , e . baseUrl ( ) . resolved ( url ) ) ;
else // Errors or no bang line
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e . load ( url ) ;
}
2015-03-11 05:25:14 +00:00
if ( lw - > earlyExit )
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return lw - > returnCode ;
2015-03-11 05:25:14 +00:00
2012-12-21 23:42:47 +00:00
return app - > exec ( ) ;
}
# include "main.moc"
