/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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revision 155 by senkov, Mon Jun 28 04:30:11 2004 UTC revision 2500 by schoenebeck, Fri Jan 10 12:20:05 2014 UTC
# Line 3  Line 3 
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6     *   Copyright (C) 2005 - 2014 Christian Schoenebeck                       *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This library is free software; you can redistribute it and/or modify  *
9   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
10   *   the Free Software Foundation; either version 2 of the License, or     *   *   the Free Software Foundation; either version 2 of the License, or     *
11   *   (at your option) any later version.                                   *   *   (at your option) any later version.                                   *
12   *                                                                         *   *                                                                         *
13   *   This program is distributed in the hope that it will be useful,       *   *   This library is distributed in the hope that it will be useful,       *
14   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *   *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
15   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
16   *   GNU General Public License for more details.                          *   *   GNU General Public License for more details.                          *
17   *                                                                         *   *                                                                         *
18   *   You should have received a copy of the GNU General Public License     *   *   You should have received a copy of the GNU General Public License     *
19   *   along with this program; if not, write to the Free Software           *   *   along with this library; if not, write to the Free Software           *
20   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *   *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
# Line 23  Line 24 
24  #ifndef __LSCPSERVER_H_  #ifndef __LSCPSERVER_H_
25  #define __LSCPSERVER_H_  #define __LSCPSERVER_H_
26    
27    #if defined(WIN32)
28    #include <windows.h>
29    typedef int socklen_t;
30    #else
31  #include <unistd.h>  #include <unistd.h>
32  #include <sys/types.h>  #include <sys/types.h>
33  #include <sys/socket.h>  #include <sys/socket.h>
34    #include <sys/select.h>
35    #include <sys/time.h>
36  #include <netinet/in.h>  #include <netinet/in.h>
37  #include <netinet/tcp.h>  #include <netinet/tcp.h>
38  #include <arpa/inet.h>  #include <arpa/inet.h>
39  #include <netdb.h>  #include <netdb.h>
40    #endif
41    
42    #include <list>
43    
44  #include "lscp.h"  #include "lscp.h"
45  #include "lscpparser.h"  #include "lscpparser.h"
46    #include "lscpevent.h"
47  #include "../Sampler.h"  #include "../Sampler.h"
48  #include "../common/Thread.h"  #include "../common/Thread.h"
49    #include "../common/Mutex.h"
50    #include "../common/Condition.h"
51    #include "../common/global_private.h"
52    
53    #include "../drivers/midi/MidiInstrumentMapper.h"
54    #include "../drivers/midi/VirtualMidiDevice.h"
55    
56    #if HAVE_SQLITE3
57    #include "../db/InstrumentsDb.h"
58    #endif
59    
60  /// TCP Port on which the server should listen for connection requests.  /// TCP Port on which the server should listen for connection requests.
61    #define LSCP_ADDR INADDR_ANY
62  #define LSCP_PORT 8888  #define LSCP_PORT 8888
63    
64  using namespace LinuxSampler;  /// try up to 3 minutes to bind server socket
65    #define LSCP_SERVER_BIND_TIMEOUT 180
 /// Handle for a client connection (FIXME: doesn't work for more than one network connections of course, thus has to be included to the yyparse() parameters instead).  
 extern int hSession;  
66    
67  // External references to the main scanner and parser functions  // External references to the main scanner and parser functions
68  extern int yyparse(void* YYPARSE_PARAM);  extern int yyparse(void* YYPARSE_PARAM);
69  extern int yylex_init(yyscan_t* scanner);  
70  extern int yylex_destroy(yyscan_t yyscanner);  namespace LinuxSampler {
71    
72    extern void restart(yyparse_param_t* pparam, int& yychar);
73    
74  /**  /**
75   * Network server for the LinuxSampler Control Protocol (LSCP).   * Network server for the LinuxSampler Control Protocol (LSCP).
76   */   */
77  class LSCPServer : public Thread {  class LSCPServer : public Thread {
78      public:      public:
79          LSCPServer(Sampler* pSampler);          LSCPServer(Sampler* pSampler, long int addr, short int port);
80            virtual ~LSCPServer();
81            int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
82            void RemoveListeners();
83    
84          // Methods called by the parser          // Methods called by the parser
85          String DestroyAudioOutputDevice(uint DeviceIndex);          String DestroyAudioOutputDevice(uint DeviceIndex);
86          String DestroyMidiInputDevice(uint DeviceIndex);          String DestroyMidiInputDevice(uint DeviceIndex);
87          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);          String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
88          String LoadEngine(String EngineName, uint uiSamplerChannel);          String SetEngineType(String EngineName, uint uiSamplerChannel);
89          String GetChannels();          String GetChannels();
90            String ListChannels();
91          String AddChannel();          String AddChannel();
92          String RemoveChannel(uint uiSamplerChannel);          String RemoveChannel(uint uiSamplerChannel);
93          String GetAvailableEngines();          String GetAvailableEngines();
94            String ListAvailableEngines();
95          String GetEngineInfo(String EngineName);          String GetEngineInfo(String EngineName);
96          String GetChannelInfo(uint uiSamplerChannel);          String GetChannelInfo(uint uiSamplerChannel);
97          String GetVoiceCount(uint uiSamplerChannel);          String GetVoiceCount(uint uiSamplerChannel);
98          String GetStreamCount(uint uiSamplerChannel);          String GetStreamCount(uint uiSamplerChannel);
99          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);          String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
100          String GetAvailableAudioOutputDrivers();          String GetAvailableAudioOutputDrivers();
101            String ListAvailableAudioOutputDrivers();
102          String GetAvailableMidiInputDrivers();          String GetAvailableMidiInputDrivers();
103            String ListAvailableMidiInputDrivers();
104          String GetAudioOutputDriverInfo(String Driver);          String GetAudioOutputDriverInfo(String Driver);
105          String GetMidiInputDriverInfo(String Driver);          String GetMidiInputDriverInfo(String Driver);
106  #ifdef __GNUC__  #ifdef __GNUC__
# Line 93  class LSCPServer : public Thread { Line 122  class LSCPServer : public Thread {
122          String GetAudioOutputDeviceInfo(uint DeviceIndex);          String GetAudioOutputDeviceInfo(uint DeviceIndex);
123          String GetMidiInputDeviceInfo(uint DeviceIndex);          String GetMidiInputDeviceInfo(uint DeviceIndex);
124          String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);          String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
125            String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
126          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);          String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
127          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);          String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
128          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);          String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
129          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);          String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
130          String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);          String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
131          String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);          String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
132          String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);          String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
133            String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
134          String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);          String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
135            String AddChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId, uint MIDIPort = 0);
136            String RemoveChannelMidiInput(uint uiSamplerChannel);
137            String RemoveChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId);
138            String RemoveChannelMidiInput(uint uiSamplerChannel, uint MIDIDeviceId, uint MIDIPort);
139            String ListChannelMidiInputs(uint uiSamplerChannel);
140            String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
141            String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
142            String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
143          String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);          String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
144          String SetMIDIInput(uint MIDIDevice, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);          String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
145          String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);          String SetVolume(double dVolume, uint uiSamplerChannel);
146          String SetVolume(double Volume, uint uiSamplerChannel);          String SetChannelMute(bool bMute, uint uiSamplerChannel);
147            String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
148            String AddOrReplaceMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name, bool bModal);
149            String RemoveMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
150            String GetMidiInstrumentMappings(uint MidiMapID);
151            String GetAllMidiInstrumentMappings();
152            String GetMidiInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
153            String ListMidiInstrumentMappings(uint MidiMapID);
154            String ListAllMidiInstrumentMappings();
155            String ClearMidiInstrumentMappings(uint MidiMapID);
156            String ClearAllMidiInstrumentMappings();
157            String AddMidiInstrumentMap(String MapName = "");
158            String RemoveMidiInstrumentMap(uint MidiMapID);
159            String RemoveAllMidiInstrumentMaps();
160            String GetMidiInstrumentMaps();
161            String ListMidiInstrumentMaps();
162            String GetMidiInstrumentMap(uint MidiMapID);
163            String SetMidiInstrumentMapName(uint MidiMapID, String NewName);
164            String SetChannelMap(uint uiSamplerChannel, int MidiMapID);
165            String CreateFxSend(uint uiSamplerChannel, uint MidiCtrl, String Name = "");
166            String DestroyFxSend(uint uiSamplerChannel, uint FxSendID);
167            String GetFxSends(uint uiSamplerChannel);
168            String ListFxSends(uint uiSamplerChannel);
169            String GetFxSendInfo(uint uiSamplerChannel, uint FxSendID);
170            String SetFxSendName(uint uiSamplerChannel, uint FxSendID, String Name);
171            String SetFxSendAudioOutputChannel(uint uiSamplerChannel, uint FxSendID, uint FxSendChannel, uint DeviceChannel);
172            String SetFxSendMidiController(uint uiSamplerChannel, uint FxSendID, uint MidiController);
173            String SetFxSendLevel(uint uiSamplerChannel, uint FxSendID, double dLevel);
174            String SetFxSendEffect(uint uiSamplerChannel, uint FxSendID, int iSendEffectChain, int iEffectChainPosition);
175    
176            // effect commands
177            String GetAvailableEffects();
178            String ListAvailableEffects();
179            String GetEffectInfo(int iEffectIndex);
180            String CreateEffectInstance(int iEffectIndex);
181            String CreateEffectInstance(String effectSystem, String module, String effectName);
182            String DestroyEffectInstance(int iEffectInstance);
183            String GetEffectInstances();
184            String ListEffectInstances();
185            String GetEffectInstanceInfo(int iEffectInstance);
186            String GetEffectInstanceInputControlInfo(int iEffectInstance, int iInputControlIndex);
187            String SetEffectInstanceInputControlValue(int iEffectInstance, int iInputControlIndex, double dValue);
188            String GetSendEffectChains(int iAudioOutputDevice);
189            String ListSendEffectChains(int iAudioOutputDevice);
190            String AddSendEffectChain(int iAudioOutputDevice);
191            String RemoveSendEffectChain(int iAudioOutputDevice, int iSendEffectChain);
192            String GetSendEffectChainInfo(int iAudioOutputDevice, int iSendEffectChain);
193            String AppendSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectInstance);
194            String InsertSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition, int iEffectInstance);
195            String RemoveSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition);
196    
197            String AddDbInstrumentDirectory(String Dir);
198            String RemoveDbInstrumentDirectory(String Dir, bool Force = false);
199            String GetDbInstrumentDirectoryCount(String Dir, bool Recursive = false);
200            String GetDbInstrumentDirectories(String Dir, bool Recursive = false);
201            String GetDbInstrumentDirectoryInfo(String Dir);
202            String SetDbInstrumentDirectoryName(String Dir, String Name);
203            String MoveDbInstrumentDirectory(String Dir, String Dst);
204            String CopyDbInstrumentDirectory(String Dir, String Dst);
205            String SetDbInstrumentDirectoryDescription(String Dir, String Desc);
206            String FindDbInstrumentDirectories(String Dir, std::map<String,String> Parameters, bool Recursive = true);
207            String AddDbInstruments(String DbDir, String FilePath, int Index = -1, bool bBackground = false);
208            String AddDbInstruments(String ScanMode, String DbDir, String FsDir, bool bBackground = false, bool insDir = false);
209            String RemoveDbInstrument(String Instr);
210            String GetDbInstrumentCount(String Dir, bool Recursive = false);
211            String GetDbInstruments(String Dir, bool Recursive = false);
212            String GetDbInstrumentInfo(String Instr);
213            String SetDbInstrumentName(String Instr, String Name);
214            String MoveDbInstrument(String Instr, String Dst);
215            String CopyDbInstrument(String Instr, String Dst);
216            String SetDbInstrumentDescription(String Instr, String Desc);
217            String SetDbInstrumentFilePath(String OldPath, String NewPath);
218            String FindLostDbInstrumentFiles();
219            String FindDbInstruments(String Dir, std::map<String,String> Parameters, bool Recursive = true);
220            String FormatInstrumentsDb();
221            String EditSamplerChannelInstrument(uint uiSamplerChannel);
222            String GetDbInstrumentsJobInfo(int JobId);
223          String ResetChannel(uint uiSamplerChannel);          String ResetChannel(uint uiSamplerChannel);
224          String SubscribeNotification(event_t Event);          String ResetSampler();
225          String UnsubscribeNotification(event_t Event);          String GetServerInfo();
226            String GetTotalStreamCount();
227            String GetTotalVoiceCount();
228            String GetTotalVoiceCountMax();
229            String GetGlobalMaxVoices();
230            String SetGlobalMaxVoices(int iVoices);
231            String GetGlobalMaxStreams();
232            String SetGlobalMaxStreams(int iStreams);
233            String GetGlobalVolume();
234            String SetGlobalVolume(double dVolume);
235            String GetFileInstruments(String Filename);
236            String ListFileInstruments(String Filename);
237            String GetFileInstrumentInfo(String Filename, uint InstrumentID);
238            String SendChannelMidiData(String MidiMsg, uint uiSamplerChannel, uint Arg1, uint Arg2);
239            String SubscribeNotification(LSCPEvent::event_t);
240            String UnsubscribeNotification(LSCPEvent::event_t);
241            String SetEcho(yyparse_param_t* pSession, double boolean_value);
242          void   AnswerClient(String ReturnMessage);          void   AnswerClient(String ReturnMessage);
243            void   CloseAllConnections();
244    
245            static int currentSocket;
246            static std::map<int,String> bufferedCommands;
247    
248            static void SendLSCPNotify( LSCPEvent Event );
249            static int EventSubscribers( std::list<LSCPEvent::event_t> events );
250            static String FilterEndlines(String s);
251    
252            //Protect main thread that generates real time notify messages
253            //like voice count, stream count and buffer fill
254            //from LSCP server removing engines and channels from underneath
255            static Mutex RTNotifyMutex;
256    
257      protected:      protected:
258          int            hSocket;          int            hSocket;
259          sockaddr_in    SocketAddress;          sockaddr_in    SocketAddress;
260          Sampler*       pSampler;          Sampler*       pSampler;
261            Condition      Initialized;
262    
263          int Main(); ///< Implementation of virtual method from class Thread          int Main(); ///< Implementation of virtual method from class Thread
264    
265      private:      private:
266            
267          /**          /**
268           * Find a created audio output device index.           * Find a created audio output device index.
269           */           */
270          int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);          int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
271            
272          /**          /**
273           * Find a created midi input device index.           * Find a created midi input device index.
274           */           */
275          int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);          int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
276    
277          /**          EngineChannel* GetEngineChannel(uint uiSamplerChannel);
          * Converts a result_t structure into a valid LSCP answer message.  
          */  
         inline String ConvertResult(result_t result) {  
             switch (result.type) {  
                 case result_type_success: {  
                     return "OK\r\n";  
                 }  
                 case result_type_warning: {  
                     std::stringstream ss;  
                     ss << "WRN:" << result.code << ":" << result.message << "\r\n";  
                     return ss.str();  
                 }  
                 case result_type_error: {  
                     std::stringstream ss;  
                     ss << "ERR:" << result.code << ":" << result.message << "\r\n";  
                     return ss.str();  
                 }  
             }  
         }  
   
         template<class T> inline String ToString(T o) {  
             std::stringstream ss;  
             ss << o;  
             return ss.str();  
         }  
 };  
   
   
 /**  
  * Instrument loader thread for the LinuxSampler Control Protocol (LSCP).  
  */  
 class LSCPLoadInstrument : public Thread {  
278    
279      public:                  /**
280          LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument);                   * Gets the specified effect send on the specified sampler channel.
281                     */
282                    FxSend* GetFxSend(uint uiSamplerChannel, uint FxSendID);
283    
284            bool HasSoloChannel();
285            void MuteNonSoloChannels();
286            void UnmuteChannels();
287    
288      protected:          /**
289          // Instance variables.           * Throws an exception if the specified file is not found or
290          Engine* pEngine;           * if directory is specified.
291          String  Filename;           */
292          uint    uiInstrument;          static void VerifyFile(String Filename);
293    
294          // Implementation of virtual method from class Thread.          static std::map<int,String> bufferedNotifies;
295          int Main();          static Mutex NotifyMutex;
296            static Mutex NotifyBufferMutex;
297            static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
298            static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
299            static std::vector<yyparse_param_t> Sessions;
300            static Mutex SubscriptionMutex;
301            static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
302            static fd_set fdSet;
303    
304            class EventHandler : public ChannelCountListener, public AudioDeviceCountListener,
305                public MidiDeviceCountListener, public MidiInstrumentCountListener,
306                public MidiInstrumentInfoListener, public MidiInstrumentMapCountListener,
307                public MidiInstrumentMapInfoListener, public FxSendCountListener,
308                public VoiceCountListener, public StreamCountListener, public BufferFillListener,
309                public TotalStreamCountListener, public TotalVoiceCountListener,
310                public EngineChangeListener, public MidiPortCountListener {
311    
312                public:
313                    EventHandler(LSCPServer* pParent);
314    
315                    /**
316                     * Invoked when the number of sampler channels has changed.
317                     * @param NewCount The new number of sampler channels.
318                     */
319                    virtual void ChannelCountChanged(int NewCount);
320                    virtual void ChannelAdded(SamplerChannel* pChannel);
321                    virtual void ChannelToBeRemoved(SamplerChannel* pChannel);
322    
323                    /**
324                     * Invoked when the number of audio output devices has changed.
325                     * @param NewCount The new number of audio output devices.
326                     */
327                    virtual void AudioDeviceCountChanged(int NewCount);
328    
329                    /**
330                     * Invoked when the number of MIDI input devices has changed.
331                     * @param NewCount The new number of MIDI input devices.
332                     */
333                    virtual void MidiDeviceCountChanged(int NewCount);
334    
335                    /**
336                     * Invoked right before the supplied MIDI input device is going
337                     * to be destroyed.
338                     * @param pDevice MidiInputDevice to be deleted
339                     */
340                    virtual void MidiDeviceToBeDestroyed(MidiInputDevice* pDevice);
341    
342                    /**
343                     * Invoked to inform that a new MidiInputDevice has just been
344                     * created.
345                     * @param pDevice newly created MidiInputDevice
346                     */
347                    virtual void MidiDeviceCreated(MidiInputDevice* pDevice);
348    
349                    /**
350                     * Invoked when the number of MIDI input ports has changed.
351                     * @param NewCount The new number of MIDI input ports.
352                     */
353                    virtual void MidiPortCountChanged(int NewCount);
354    
355                    /**
356                     * Invoked right before the supplied MIDI input port is going
357                     * to be destroyed.
358                     * @param pPort MidiInputPort to be deleted
359                     */
360                    virtual void MidiPortToBeRemoved(MidiInputPort* pPort);
361    
362                    /**
363                     * Invoked to inform that a new MidiInputPort has just been
364                     * added.
365                     * @param pPort newly created MidiInputPort
366                     */
367                    virtual void MidiPortAdded(MidiInputPort* pPort);
368    
369                    /**
370                     * Invoked when the number of MIDI instruments has changed.
371                     * @param MapId The numerical ID of the MIDI instrument map.
372                     * @param NewCount The new number of MIDI instruments.
373                     */
374                    virtual void MidiInstrumentCountChanged(int MapId, int NewCount);
375    
376                    /**
377                     * Invoked when a MIDI instrument in a MIDI instrument map is changed.
378                     * @param MapId The numerical ID of the MIDI instrument map.
379                     * @param Bank The index of the MIDI bank, containing the instrument.
380                     * @param Program The MIDI program number of the instrument.
381                     */
382                    virtual void MidiInstrumentInfoChanged(int MapId, int Bank, int Program);
383    
384                    /**
385                     * Invoked when the number of MIDI instrument maps has changed.
386                     * @param NewCount The new number of MIDI instruments.
387                     */
388                    virtual void MidiInstrumentMapCountChanged(int NewCount);
389    
390                    /**
391                     * Invoked when the settings of a MIDI instrument map are changed.
392                     * @param MapId The numerical ID of the MIDI instrument map.
393                     */
394                    virtual void MidiInstrumentMapInfoChanged(int MapId);
395    
396                    /**
397                     * Invoked when the number of effect sends
398                     * on the specified sampler channel has changed.
399                     * @param ChannelId The numerical ID of the sampler channel.
400                     * @param NewCount The new number of effect sends.
401                     */
402                    virtual void FxSendCountChanged(int ChannelId, int NewCount);
403    
404                    /**
405                     * Invoked when the number of active voices
406                     * on the specified sampler channel has changed.
407                     * @param ChannelId The numerical ID of the sampler channel.
408                     * @param NewCount The new number of active voices.
409                     */
410                    virtual void VoiceCountChanged(int ChannelId, int NewCount);
411    
412                    /**
413                     * Invoked when the number of active disk streams
414                     * on the specified sampler channel has changed.
415                     * @param ChannelId The numerical ID of the sampler channel.
416                     * @param NewCount The new number of active disk streams.
417                     */
418                    virtual void StreamCountChanged(int ChannelId, int NewCount);
419    
420                    /**
421                     * Invoked when the fill state of the disk stream
422                     * buffers on the specified sampler channel is changed.
423                     * @param ChannelId The numerical ID of the sampler channel.
424                     * @param FillData The buffer fill data for the specified sampler channel.
425                     */
426                    virtual void BufferFillChanged(int ChannelId, String FillData);
427    
428                    /**
429                     * Invoked when the total number of active voices is changed.
430                     * @param NewCount The new number of active voices.
431                     */
432                    virtual void TotalVoiceCountChanged(int NewCount);
433                    virtual void TotalStreamCountChanged(int NewCount);
434    
435                    virtual void EngineToBeChanged(int ChannelId);
436                    virtual void EngineChanged(int ChannelId);
437    
438                    virtual ~EventHandler();
439    
440                    struct midi_listener_entry {
441                        SamplerChannel* pSamplerChannel;
442                        EngineChannel* pEngineChannel;
443                        VirtualMidiDevice* pMidiListener;
444                    };
445    
446                    std::vector<midi_listener_entry> channelMidiListeners;
447    
448                    struct device_midi_listener_entry {
449                        MidiInputPort* pPort;
450                        VirtualMidiDevice* pMidiListener;
451                        uint uiDeviceID;
452                    };
453    
454                    std::vector<device_midi_listener_entry> deviceMidiListeners;
455    
456                private:
457                    LSCPServer* pParent;
458            } eventHandler;
459    
460    #if HAVE_SQLITE3
461            class DbInstrumentsEventHandler : public InstrumentsDb::Listener {
462                public:
463                    virtual void DirectoryCountChanged(String Dir);
464                    virtual void DirectoryInfoChanged(String Dir);
465                    virtual void DirectoryNameChanged(String Dir, String NewName);
466                    virtual void InstrumentCountChanged(String Dir);
467                    virtual void InstrumentInfoChanged(String Instr);
468                    virtual void InstrumentNameChanged(String Instr, String NewName);
469                    virtual void JobStatusChanged(int JobId);
470            } dbInstrumentsEventHandler;
471    #endif // HAVE_SQLITE3
472  };  };
473    
474    }
475    
476  #endif // __LSCPSERVER_H_  #endif // __LSCPSERVER_H_
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