--- linuxsampler/trunk/src/Sampler.h	2007/03/25 18:59:14	1130
+++ linuxsampler/trunk/src/Sampler.h	2008/04/20 08:53:39	1723
@@ -3,7 +3,7 @@
  *   LinuxSampler - modular, streaming capable sampler                     *
  *                                                                         *
  *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
- *   Copyright (C) 2005, 2006 Christian Schoenebeck                        *
+ *   Copyright (C) 2005 - 2008 Christian Schoenebeck                       *
  *                                                                         *
  *   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  *
@@ -168,6 +168,12 @@
             void RemoveAllEngineChangeListeners();
 
             /**
+             * Notifies listeners that the engine type of this sampler
+             * channel is going to be changed soon.
+             */
+            void fireEngineToBeChanged();
+
+            /**
              * Notifies listeners that the engine
              * type of this sampler channel is changed.
              */
@@ -415,6 +421,10 @@
              * @param NewCount The new number of active voices.
              */
             void fireTotalVoiceCountChanged(int NewCount);
+            
+            void AddTotalStreamCountListener(TotalStreamCountListener* l);
+            void RemoveTotalStreamCountListener(TotalStreamCountListener* l);
+            void fireTotalStreamCountChanged(int NewCount);
 
             /**
              * Registers the specified listener to be notified when the number
@@ -503,6 +513,12 @@
              */
             void DestroyMidiInputDevice(MidiInputDevice* pDevice) throw (Exception);
 
+             /**
+             * Gets the current number of all active streams.
+             * @returns The current number of all active streams.
+             */
+            int GetDiskStreamCount();
+
             /**
              * Gets the current number of all active voices.
              * @returns The current number of all active voices.
@@ -515,6 +531,15 @@
              */
             void Reset();
 
+            /**
+             * Advise the FPU to treat denormal floating point numbers as
+             * zero, to avoid severe performance penalty when dealing with
+             * such extreme floating point values.
+             *
+             * @returns @c true if FPU supports it, @c false otherwise
+             */
+            static bool EnableDenormalsAreZeroMode();
+
         protected:
             /**
              * Notifies listeners that the number of sampler channels has been changed.
@@ -523,6 +548,20 @@
             void fireChannelCountChanged(int NewCount);
 
             /**
+             * Notifies listeners that the specified sampler channel has just
+             * been added.
+             * @param pChannel The new sampler channel.
+             */
+            void fireChannelAdded(SamplerChannel* pChannel);
+
+            /**
+             * Notifies listeners that the specified sampler channel is
+             * going to be removed soon.
+             * @param pChannel sampler channel to be removed.
+             */
+            void fireChannelToBeRemoved(SamplerChannel* pChannel);
+
+            /**
              * Notifies listeners that the number of audio output devices has been changed.
              * @param NewCount The new number of audio output devices.
              */
@@ -535,6 +574,20 @@
             void fireMidiDeviceCountChanged(int NewCount);
 
             /**
+             * Notifies listeners that the supplied MIDI input device is
+             * going to be destroyed soon.
+             * @param pDevice MIDI input device to be destroyed
+             */
+            void fireMidiDeviceToBeDestroyed(MidiInputDevice* pDevice);
+
+            /**
+             * Notifies listeners that the supplied MIDI input device was
+             * just created.
+             * @param pDevice new MIDI input device 
+             */
+            void fireMidiDeviceCreated(MidiInputDevice* pDevice);
+
+            /**
              * Notifies listeners that the number of effect sends
              * on a particular sampler channel is changed.
              * @param ChannelId The numerical ID of the sampler channel.
@@ -559,6 +612,7 @@
             ListenerList<VoiceCountListener*> llVoiceCountListeners;
             ListenerList<StreamCountListener*> llStreamCountListeners;
             ListenerList<BufferFillListener*> llBufferFillListeners;
+            ListenerList<TotalStreamCountListener*> llTotalStreamCountListeners;
             ListenerList<TotalVoiceCountListener*> llTotalVoiceCountListeners;
             ListenerList<FxSendCountListener*> llFxSendCountListeners;
 
@@ -567,6 +621,13 @@
                     void SetSampler(Sampler* pSampler) { this->pSampler = pSampler; }
 
                     /**
+                     * Invoked when the engine type of the specified sampler
+                     * channel is going to be changed soon.
+                     * @param ChannelId The numerical ID of the sampler channel
+                     */
+                    virtual void EngineToBeChanged(int ChannelId);
+
+                    /**
                      * Invoked when the engine type of the
                      * specified sampler channel is changed.
                      * @param ChannelId The numerical ID of the sampler