simple xrun-detection

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@80 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/engine.h

@@ -0,0 +1,115 @@
+/*
+ * engine.h - engine-system of LMMS
+ *
+ * Copyright (c) 2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * 
+ * This file is part of Linux MultiMedia Studio - http://lmms.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.
+ *
+ */
+
+
+#ifndef _ENGINE_H
+#define _ENGINE_H
+
+class mixer;
+class lmmsMainWin;
+class songEditor;
+class bbEditor;
+class pianoRoll;
+
+
+class engine
+{
+public:
+	engine( bool _has_gui = TRUE );
+	engine( const engine & _engine );
+	~engine();
+
+	engine * duplicate( const engine * _engine )
+	{
+		return( new engine( *_engine ) );
+	}
+
+	inline bool hasGUI( void ) const
+	{
+		return( m_hasGUI );
+	}
+
+	inline mixer * getMixer( void )
+	{
+		return( m_mixer );
+	}
+
+	inline lmmsMainWin * getMainWindow( void )
+	{
+		return( m_mainWindow );
+	}
+
+	inline songEditor * getSongEditor( void )
+	{
+		return( m_songEditor );
+	}
+
+	inline bbEditor * getBBEditor( void )
+	{
+		return( m_bbEditor );
+	}
+
+	inline pianoRoll * getPianoRoll( void )
+	{
+		return( m_pianoRoll );
+	}
+
+
+private:
+	bool m_hasGUI;
+
+	mixer * m_mixer;
+	lmmsMainWin * m_mainWindow;
+	songEditor * m_songEditor;
+	bbEditor * m_bbEditor;
+	pianoRoll * m_pianoRoll;
+
+} ;
+
+
+
+class engineObject
+{
+public:
+	engineObject( engine * _engine );
+	~engineObject();
+
+	inline engine * eng( void )
+	{
+		return( m_engine );
+	}
+
+	inline bool hasGUI( void ) const
+	{
+		return( m_engine->hasGUI() );
+	}
+
+
+private:
+	engine * m_engine;
+
+} ;
+
+
+#endif

include/mixer.h

@@ -195,7 +195,14 @@ public:
 
 	inline void addPlayHandle( playHandle * _ph )
 	{
-		m_playHandles.push_back( _ph );
+		if( criticalXRuns() == FALSE )
+		{
+			m_playHandles.push_back( _ph );
+		}
+		else
+		{
+			delete _ph;
+		}
 	}
 
 	inline void removePlayHandle( playHandle * _ph )
@@ -223,7 +230,7 @@ public:
 		return( m_masterGain );
 	}
 
-	inline void setMasterGain( float _mo )
+	inline void setMasterGain( const float _mo )
 	{
 		m_masterGain = _mo;
 	}
@@ -277,6 +284,7 @@ public:
 		return( m_playHandles.size() == 0 );
 	}
 
+	bool criticalXRuns( void ) const;
 
 	const surroundSampleFrame * renderNextBuffer( void );
 

include/pattern.h

@@ -2,7 +2,7 @@
  * pattern.h - declaration of class pattern, which contains all informations
  *             about a pattern
  *
- * Copyright (c) 2004-2005 Tobias Doerffel <tobydox/at/users.sourceforge.net>
+ * Copyright (c) 2004-2006 Tobias Doerffel <tobydox/at/users.sourceforge.net>
  * 
  * This file is part of Linux MultiMedia Studio - http://lmms.sourceforge.net
  *
@@ -78,7 +78,7 @@ public:
 		BEAT_PATTERN, MELODY_PATTERN/*, AUTOMATION_PATTERN*/
 	} ;
 
-	pattern( channelTrack * _channel_track );
+	pattern( channelTrack * _channel_track ) FASTCALL;
 	pattern( const pattern & _pat_to_copy ) FASTCALL;
 	virtual ~pattern();
 

include/song_editor.h

@@ -119,6 +119,8 @@ public:
 		return( m_exporting );
 	}
 
+	bool realTimeTask( void ) const;
+
 	inline bool exportDone( void ) const
 	{
 		return( m_exporting == TRUE &&