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ab719618f7
git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@25 0778d3d1-df1d-0410-868b-ea421aaaa00d
177 lines
3.7 KiB
C++
177 lines
3.7 KiB
C++
/*
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* plugin.cpp - implemenation of plugin-class including plugin-loader
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*
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* Copyright (c) 2005 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifdef HAVE_DLFCN_H
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#include <dlfcn.h>
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#endif
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#include "qt3support.h"
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#ifdef QT4
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#include <QMessageBox>
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#include <QDir>
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#else
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#include <qmessagebox.h>
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#include <qdir.h>
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#endif
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#include "plugin.h"
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#include "mixer.h"
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#include "config_mgr.h"
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#include "dummy_plugin.h"
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plugin::plugin( const QString & _public_name, pluginTypes _type ) :
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settings(),
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m_publicName( _public_name ),
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m_type( _type )
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{
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}
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plugin::~plugin()
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{
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}
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void plugin::setParameter( const QString &, const QString & )
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{
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}
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QString plugin::getParameter( const QString & )
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{
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return( "" );
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}
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plugin * plugin::instantiate( const QString & _plugin_name, void * _data )
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{
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#ifdef HAVE_DLFCN_H
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void * handle = dlopen( QString( "lib" + _plugin_name + ".so" ).
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#ifdef QT4
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toAscii().constData()
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#else
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ascii()
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#endif
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, RTLD_NOW );
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if( handle == NULL )
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{
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QMessageBox::information( NULL,
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mixer::tr( "Plugin not found" ),
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mixer::tr( "The %1-plugin wasn't found!"
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).arg( _plugin_name ),
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QMessageBox::Ok |
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QMessageBox::Default );
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return( new dummyPlugin() );
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}
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dlerror();
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instantiationHook inst_hook = ( instantiationHook )( dlsym( handle,
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"lmms_plugin_main" ) );
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char * error = dlerror();
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if( error != NULL )
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{
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printf( "%s\n", error );
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QMessageBox::information( NULL,
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mixer::tr( "Error while loading plugin" ),
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mixer::tr( "Failed loading plugin \"%1\"!"
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).arg( _plugin_name ),
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QMessageBox::Ok |
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QMessageBox::Default );
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return( new dummyPlugin() );
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}
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plugin * inst = inst_hook( _data );
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//dlclose( handle );
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return( inst );
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#endif
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return( new dummyPlugin() );
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}
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void plugin::getDescriptorsOfAvailPlugins( vvector<descriptor> & _plugin_descs )
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{
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QDir directory( configManager::inst()->pluginDir() );
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const QFileInfoList * list = directory.entryInfoList( "lib*.so" );
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if( list == NULL )
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{
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return;
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}
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for( QFileInfoList::iterator file = list->begin();
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file != list->end(); ++file )
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{
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void * handle = dlopen( ( *file )->absFilePath().latin1(),
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RTLD_NOW );
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char * msg = dlerror();
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if( msg != NULL || handle == NULL )
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{
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printf( "plugin-loader: %s\n", msg );
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continue;
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}
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void * foo = dlsym( handle, "lmms_plugin_main" );
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msg = dlerror();
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if( msg != NULL || foo == NULL )
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{
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printf( "plugin-loader: %s\n", msg );
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continue;
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}
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QString desc_name = ( *file )->fileName().mid( 3 ).section(
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'.', 0, 0 ) + "_plugin_descriptor";
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descriptor * plugin_desc =
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(descriptor *) dlsym( handle, desc_name.ascii() );
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msg = dlerror();
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if( msg != NULL || plugin_desc == NULL )
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{
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printf( "plugin-loader: %s\n", msg );
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continue;
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}
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_plugin_descs.push_back( *plugin_desc );
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//dlclose( handle );
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}
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}
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