fundamental changes in plugin-architecture, added plugin-browser, bug-fixes - see ChangeLog for further details

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@18 0778d3d1-df1d-0410-868b-ea421aaaa00d
2026-04-28 09:59:33 -04:00 · 2005-10-20 13:02:26 +00:00
parent 58fe360793
commit f55c124be6
96 changed files with 5262 additions and 234 deletions
--- a/src/core/plugin.cpp
+++ b/src/core/plugin.cpp
@@ -0,0 +1,175 @@
+/*
+ * plugin.cpp - implemenation of plugin-class including plugin-loader
+ *
+ * Linux MultiMedia Studio
+ * Copyright (c) 2004-2005 Tobias Doerffel <tobydox@users.sourceforge.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include "qt3support.h"
+
+#ifdef QT4
+
+#include <QMessageBox>
+#include <QDir>
+
+#else
+
+#include <qmessagebox.h>
+#include <qdir.h>
+
+#endif
+
+
+#include "plugin.h"
+#include "mixer.h"
+#include "config_mgr.h"
+#include "dummy_plugin.h"
+
+
+
+plugin::plugin( const QString & _public_name, pluginTypes _type ) :
+	settings(),
+	m_publicName( _public_name ),
+	m_type( _type )
+{
+}
+
+
+
+
+plugin::~plugin()
+{
+}
+
+
+
+
+void plugin::setParameter( const QString &, const QString & )
+{
+}
+
+
+
+
+QString plugin::getParameter( const QString & )
+{
+	return( "" );
+}
+
+
+
+
+plugin * plugin::instantiate( const QString & _plugin_name, void * _data )
+{
+#ifdef HAVE_DLFCN_H
+	void * handle = dlopen( QString( "lib" + _plugin_name + ".so" ).
+#ifdef QT4
+					toAscii().constData()
+#else
+					ascii()
+#endif
+					, RTLD_LAZY );
+	if( handle == NULL )
+	{
+		QMessageBox::information( NULL,
+					mixer::tr( "Plugin not found" ),
+					mixer::tr( "The %1-plugin wasn't found!"
+							).arg( _plugin_name ),
+					QMessageBox::Ok |
+						QMessageBox::Default );
+		return( new dummyPlugin() );
+	}
+	dlerror();
+	instantiationHook inst_hook = ( instantiationHook )( dlsym( handle,
+							"lmms_plugin_main" ) );
+	char * error = dlerror();
+	if( error != NULL )
+	{
+		printf( "%s\n", error );
+		QMessageBox::information( NULL,
+				mixer::tr( "Error while loading plugin" ),
+				mixer::tr( "Failed loading plugin \"%1\"!"
+							).arg( _plugin_name ),
+					QMessageBox::Ok |
+						QMessageBox::Default );
+		return( new dummyPlugin() );
+	}
+	plugin * inst = inst_hook( _data );
+	//dlclose( handle );
+	return( inst );
+#endif
+	return( new dummyPlugin() );
+}
+
+
+
+
+void plugin::getDescriptorsOfAvailPlugins( vvector<descriptor> & _plugin_descs )
+{
+	QDir directory( configManager::inst()->pluginDir() );
+	const QFileInfoList * list = directory.entryInfoList( "*.so" );
+	if( list == NULL )
+	{
+		return;
+	}
+	for( QFileInfoList::iterator file = list->begin();
+						file != list->end(); ++file )
+	{
+		void * handle = dlopen( ( *file )->absFilePath().latin1(),
+								RTLD_LAZY );
+		char * msg = dlerror();
+		if( msg != NULL || handle == NULL )
+		{
+			printf( "plugin-loader: %s\n", msg );
+			continue;
+		}
+		void * foo = dlsym( handle, "lmms_plugin_main" );
+		msg = dlerror();
+		if( msg != NULL || foo == NULL )
+		{
+			printf( "plugin-loader: %s\n", msg );
+			continue;
+		}
+		QString desc_name = ( *file )->fileName().mid( 3 ).section(
+					'.', 0, 0 ) + "_plugin_descriptor";
+		descriptor * plugin_desc =
+			(descriptor *) dlsym( handle, desc_name.ascii() );
+		msg = dlerror();
+		if( msg != NULL || plugin_desc == NULL )
+		{
+			printf( "plugin-loader: %s\n", msg );
+			continue;
+		}
+		_plugin_descs.push_back( *plugin_desc );
+		//dlclose( handle );
+	}
+
+}
+
+
+