/[svn]/linuxsampler/trunk/src/network/lscpserver.h
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Annotation of /linuxsampler/trunk/src/network/lscpserver.h

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Revision 2137 - (hide annotations) (download) (as text)
Mon Oct 4 12:20:23 2010 UTC (13 years, 5 months ago) by schoenebeck
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* revised previously added new LSCP commands regarding effect handling:
  renamed "master effects" to "send effects", since this is the actual
  correct common term for those effects
* also corrected the names regarding "send effects" in the respective
  methods of the "FxSsnd" class and "AudioOutputDevice" class of the
  sampler's C++ API, the old methods are still available but marked as
  deprecated and scheduled for removal
* added LSCP command "SET FX_SEND SEND_EFFECT <sampler_channel>
  <fx_send_id> <effect_chain> <chain_pos>"
* added LSCP command "REMOVE FX_SEND SEND_EFFECT <sampler_channel>
  <fx_send_id>"
* added a list of common known LADSPA paths (for Windows and POSIX) which
  will be automatically checked for being used as LADSPA plugin directory
  (if the user did not set the LADSPA_PATH environment variable explicitly)
* bumped version to 1.0.0.cvs8

1 schoenebeck 35 /***************************************************************************
2     * *
3     * LinuxSampler - modular, streaming capable sampler *
4     * *
5 schoenebeck 56 * Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6 schoenebeck 1686 * Copyright (C) 2005 - 2008 Christian Schoenebeck *
7 schoenebeck 35 * *
8 schoenebeck 385 * This library is free software; you can redistribute it and/or modify *
9 schoenebeck 35 * 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 *
11     * (at your option) any later version. *
12     * *
13 schoenebeck 385 * This library is distributed in the hope that it will be useful, *
14 schoenebeck 35 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16     * GNU General Public License for more details. *
17     * *
18     * You should have received a copy of the GNU General Public License *
19 schoenebeck 385 * along with this library; if not, write to the Free Software *
20 schoenebeck 35 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
21     * MA 02111-1307 USA *
22     ***************************************************************************/
23    
24     #ifndef __LSCPSERVER_H_
25     #define __LSCPSERVER_H_
26    
27 senoner 1481 #if defined(WIN32)
28     #include <windows.h>
29     typedef int socklen_t;
30     #else
31 schoenebeck 35 #include <unistd.h>
32     #include <sys/types.h>
33     #include <sys/socket.h>
34 senkov 170 #include <sys/select.h>
35     #include <sys/time.h>
36 schoenebeck 35 #include <netinet/in.h>
37     #include <netinet/tcp.h>
38     #include <arpa/inet.h>
39     #include <netdb.h>
40 senoner 1481 #endif
41 schoenebeck 35
42 senkov 170 #include <list>
43    
44 schoenebeck 53 #include "lscp.h"
45 schoenebeck 35 #include "lscpparser.h"
46 senkov 170 #include "lscpevent.h"
47 schoenebeck 53 #include "../Sampler.h"
48     #include "../common/Thread.h"
49 senkov 170 #include "../common/Mutex.h"
50 schoenebeck 211 #include "../common/Condition.h"
51 schoenebeck 1424 #include "../common/global_private.h"
52 schoenebeck 35
53 schoenebeck 947 #include "../drivers/midi/MidiInstrumentMapper.h"
54 schoenebeck 1686 #include "../drivers/midi/VirtualMidiDevice.h"
55 schoenebeck 947
56 iliev 1161 #if HAVE_SQLITE3
57     #include "../db/InstrumentsDb.h"
58     #endif
59    
60 schoenebeck 35 /// TCP Port on which the server should listen for connection requests.
61 senkov 667 #define LSCP_ADDR INADDR_ANY
62 schoenebeck 35 #define LSCP_PORT 8888
63    
64 schoenebeck 227 /// try up to 3 minutes to bind server socket
65     #define LSCP_SERVER_BIND_TIMEOUT 180
66    
67 schoenebeck 35 // External references to the main scanner and parser functions
68     extern int yyparse(void* YYPARSE_PARAM);
69 persson 1765
70     namespace LinuxSampler {
71    
72 schoenebeck 219 extern void restart(yyparse_param_t* pparam, int& yychar);
73 schoenebeck 35
74     /**
75     * Network server for the LinuxSampler Control Protocol (LSCP).
76     */
77     class LSCPServer : public Thread {
78     public:
79 senkov 667 LSCPServer(Sampler* pSampler, long int addr, short int port);
80 schoenebeck 475 virtual ~LSCPServer();
81 schoenebeck 211 int WaitUntilInitialized(long TimeoutSeconds = 0L, long TimeoutNanoSeconds = 0L);
82 iliev 1835 void RemoveListeners();
83 schoenebeck 35
84     // Methods called by the parser
85 schoenebeck 123 String DestroyAudioOutputDevice(uint DeviceIndex);
86 senkov 155 String DestroyMidiInputDevice(uint DeviceIndex);
87 capela 137 String LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground = false);
88 schoenebeck 411 String SetEngineType(String EngineName, uint uiSamplerChannel);
89 schoenebeck 35 String GetChannels();
90 schoenebeck 209 String ListChannels();
91 schoenebeck 35 String AddChannel();
92 schoenebeck 53 String RemoveChannel(uint uiSamplerChannel);
93 schoenebeck 35 String GetAvailableEngines();
94 capela 527 String ListAvailableEngines();
95 schoenebeck 35 String GetEngineInfo(String EngineName);
96 schoenebeck 53 String GetChannelInfo(uint uiSamplerChannel);
97     String GetVoiceCount(uint uiSamplerChannel);
98     String GetStreamCount(uint uiSamplerChannel);
99     String GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel);
100 schoenebeck 123 String GetAvailableAudioOutputDrivers();
101 capela 527 String ListAvailableAudioOutputDrivers();
102 senkov 155 String GetAvailableMidiInputDrivers();
103 capela 527 String ListAvailableMidiInputDrivers();
104 schoenebeck 123 String GetAudioOutputDriverInfo(String Driver);
105 senkov 155 String GetMidiInputDriverInfo(String Driver);
106 schoenebeck 123 #ifdef __GNUC__
107     typedef std::map<String,String> StringMap; // nasty workaround for a GCC bug (see GCC bug #15980, #57)
108     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
109 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = StringMap());
110 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = StringMap());
111 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = StringMap());
112 schoenebeck 123 #else
113     String GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
114 senkov 155 String GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList = std::map<String,String>());
115 senkov 140 String CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
116 senkov 155 String CreateMidiInputDevice(String Driver, std::map<String,String> Parameters = std::map<String,String>());
117 schoenebeck 123 #endif // __GNUC__
118     String GetAudioOutputDeviceCount();
119 senkov 155 String GetMidiInputDeviceCount();
120 schoenebeck 123 String GetAudioOutputDevices();
121 senkov 155 String GetMidiInputDevices();
122 schoenebeck 123 String GetAudioOutputDeviceInfo(uint DeviceIndex);
123 senkov 155 String GetMidiInputDeviceInfo(uint DeviceIndex);
124     String GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex);
125 senkov 185 String GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName);
126 schoenebeck 123 String GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId);
127     String GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName);
128     String SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal);
129     String SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
130 senkov 155 String SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal);
131 capela 159 String SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal);
132 schoenebeck 123 String SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel);
133 capela 159 String SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel);
134 capela 143 String SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel);
135 capela 159 String SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel);
136     String SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel);
137     String SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel);
138 schoenebeck 123 String SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel);
139 capela 159 String SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel);
140 schoenebeck 225 String SetVolume(double dVolume, uint uiSamplerChannel);
141 schoenebeck 705 String SetChannelMute(bool bMute, uint uiSamplerChannel);
142     String SetChannelSolo(bool bSolo, uint uiSamplerChannel);
143 schoenebeck 1047 String AddOrReplaceMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg, String EngineType, String InstrumentFile, uint InstrumentIndex, float Volume, MidiInstrumentMapper::mode_t LoadMode, String Name, bool bModal);
144 schoenebeck 973 String RemoveMIDIInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
145     String GetMidiInstrumentMappings(uint MidiMapID);
146     String GetAllMidiInstrumentMappings();
147     String GetMidiInstrumentMapping(uint MidiMapID, uint MidiBank, uint MidiProg);
148     String ListMidiInstrumentMappings(uint MidiMapID);
149     String ListAllMidiInstrumentMappings();
150     String ClearMidiInstrumentMappings(uint MidiMapID);
151     String ClearAllMidiInstrumentMappings();
152     String AddMidiInstrumentMap(String MapName = "");
153     String RemoveMidiInstrumentMap(uint MidiMapID);
154     String RemoveAllMidiInstrumentMaps();
155     String GetMidiInstrumentMaps();
156     String ListMidiInstrumentMaps();
157     String GetMidiInstrumentMap(uint MidiMapID);
158     String SetMidiInstrumentMapName(uint MidiMapID, String NewName);
159     String SetChannelMap(uint uiSamplerChannel, int MidiMapID);
160 schoenebeck 1001 String CreateFxSend(uint uiSamplerChannel, uint MidiCtrl, String Name = "");
161     String DestroyFxSend(uint uiSamplerChannel, uint FxSendID);
162     String GetFxSends(uint uiSamplerChannel);
163     String ListFxSends(uint uiSamplerChannel);
164     String GetFxSendInfo(uint uiSamplerChannel, uint FxSendID);
165 iliev 1135 String SetFxSendName(uint uiSamplerChannel, uint FxSendID, String Name);
166 schoenebeck 1001 String SetFxSendAudioOutputChannel(uint uiSamplerChannel, uint FxSendID, uint FxSendChannel, uint DeviceChannel);
167 schoenebeck 1026 String SetFxSendMidiController(uint uiSamplerChannel, uint FxSendID, uint MidiController);
168     String SetFxSendLevel(uint uiSamplerChannel, uint FxSendID, double dLevel);
169 schoenebeck 2137 String SetFxSendEffect(uint uiSamplerChannel, uint FxSendID, int iSendEffectChain, int iEffectChainPosition);
170 schoenebeck 2135
171     // effect commands
172     String GetAvailableEffects();
173     String ListAvailableEffects();
174     String GetEffectInfo(int iEffectIndex);
175 schoenebeck 2137 String CreateEffectInstance(int iEffectIndex);
176 schoenebeck 2135 String CreateEffectInstance(String effectSystem, String module, String effectName);
177 schoenebeck 2137 String DestroyEffectInstance(int iEffectInstance);
178 schoenebeck 2135 String GetEffectInstances();
179     String ListEffectInstances();
180 schoenebeck 2137 String GetEffectInstanceInfo(int iEffectInstance);
181     String GetEffectInstanceInputControlInfo(int iEffectInstance, int iInputControlIndex);
182     String SetEffectInstanceInputControlValue(int iEffectInstance, int iInputControlIndex, double dValue);
183     String GetSendEffectChains(int iAudioOutputDevice);
184     String ListSendEffectChains(int iAudioOutputDevice);
185     String AddSendEffectChain(int iAudioOutputDevice);
186     String RemoveSendEffectChain(int iAudioOutputDevice, int iSendEffectChain);
187     String GetSendEffectChainInfo(int iAudioOutputDevice, int iSendEffectChain);
188     String AppendSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectInstance);
189     String InsertSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition, int iEffectInstance);
190     String RemoveSendEffectChainEffect(int iAudioOutputDevice, int iSendEffectChain, int iEffectChainPosition);
191 schoenebeck 2135
192 iliev 1161 String AddDbInstrumentDirectory(String Dir);
193     String RemoveDbInstrumentDirectory(String Dir, bool Force = false);
194 iliev 1187 String GetDbInstrumentDirectoryCount(String Dir, bool Recursive = false);
195     String GetDbInstrumentDirectories(String Dir, bool Recursive = false);
196 iliev 1161 String GetDbInstrumentDirectoryInfo(String Dir);
197     String SetDbInstrumentDirectoryName(String Dir, String Name);
198     String MoveDbInstrumentDirectory(String Dir, String Dst);
199 iliev 1187 String CopyDbInstrumentDirectory(String Dir, String Dst);
200 iliev 1161 String SetDbInstrumentDirectoryDescription(String Dir, String Desc);
201 iliev 1187 String FindDbInstrumentDirectories(String Dir, std::map<String,String> Parameters, bool Recursive = true);
202 iliev 1200 String AddDbInstruments(String DbDir, String FilePath, int Index = -1, bool bBackground = false);
203 iliev 1781 String AddDbInstruments(String ScanMode, String DbDir, String FsDir, bool bBackground = false, bool insDir = false);
204 iliev 1161 String RemoveDbInstrument(String Instr);
205 iliev 1187 String GetDbInstrumentCount(String Dir, bool Recursive = false);
206     String GetDbInstruments(String Dir, bool Recursive = false);
207 iliev 1161 String GetDbInstrumentInfo(String Instr);
208     String SetDbInstrumentName(String Instr, String Name);
209     String MoveDbInstrument(String Instr, String Dst);
210 iliev 1187 String CopyDbInstrument(String Instr, String Dst);
211 iliev 1161 String SetDbInstrumentDescription(String Instr, String Desc);
212 iliev 1727 String SetDbInstrumentFilePath(String OldPath, String NewPath);
213     String FindLostDbInstrumentFiles();
214 iliev 1187 String FindDbInstruments(String Dir, std::map<String,String> Parameters, bool Recursive = true);
215 iliev 1353 String FormatInstrumentsDb();
216 schoenebeck 1212 String EditSamplerChannelInstrument(uint uiSamplerChannel);
217 iliev 1200 String GetDbInstrumentsJobInfo(int JobId);
218 schoenebeck 53 String ResetChannel(uint uiSamplerChannel);
219 schoenebeck 212 String ResetSampler();
220 schoenebeck 563 String GetServerInfo();
221 iliev 1541 String GetTotalStreamCount();
222 iliev 778 String GetTotalVoiceCount();
223     String GetTotalVoiceCountMax();
224 schoenebeck 1800 String GetGlobalMaxVoices();
225     String SetGlobalMaxVoices(int iVoices);
226     String GetGlobalMaxStreams();
227     String SetGlobalMaxStreams(int iStreams);
228 schoenebeck 1005 String GetGlobalVolume();
229     String SetGlobalVolume(double dVolume);
230 schoenebeck 1525 String GetFileInstruments(String Filename);
231     String ListFileInstruments(String Filename);
232     String GetFileInstrumentInfo(String Filename, uint InstrumentID);
233 iliev 1771 String SendChannelMidiData(String MidiMsg, uint uiSamplerChannel, uint Arg1, uint Arg2);
234 senkov 170 String SubscribeNotification(LSCPEvent::event_t);
235     String UnsubscribeNotification(LSCPEvent::event_t);
236 schoenebeck 210 String SetEcho(yyparse_param_t* pSession, double boolean_value);
237 schoenebeck 35 void AnswerClient(String ReturnMessage);
238 iliev 1848 void CloseAllConnections();
239 senkov 170
240     static int currentSocket;
241     static std::map<int,String> bufferedCommands;
242 senkov 184
243     static void SendLSCPNotify( LSCPEvent Event );
244 senkov 360 static int EventSubscribers( std::list<LSCPEvent::event_t> events );
245 schoenebeck 1551 static void LockRTNotify();
246     static void UnlockRTNotify();
247 iliev 1161 static String FilterEndlines(String s);
248 senkov 184
249 schoenebeck 35 protected:
250 schoenebeck 53 int hSocket;
251     sockaddr_in SocketAddress;
252     Sampler* pSampler;
253 schoenebeck 211 Condition Initialized;
254 schoenebeck 35
255     int Main(); ///< Implementation of virtual method from class Thread
256 senkov 170
257 schoenebeck 35 private:
258 schoenebeck 209
259 schoenebeck 35 /**
260 capela 143 * Find a created audio output device index.
261     */
262     int GetAudioOutputDeviceIndex (AudioOutputDevice *pDevice);
263 schoenebeck 209
264 senkov 155 /**
265     * Find a created midi input device index.
266     */
267     int GetMidiInputDeviceIndex (MidiInputDevice *pDevice);
268 capela 143
269 iliev 1135 EngineChannel* GetEngineChannel(uint uiSamplerChannel);
270    
271     /**
272     * Gets the specified effect send on the specified sampler channel.
273     */
274     FxSend* GetFxSend(uint uiSamplerChannel, uint FxSendID);
275    
276 schoenebeck 705 bool HasSoloChannel();
277     void MuteNonSoloChannels();
278     void UnmuteChannels();
279 schoenebeck 1551
280 iliev 1535 /**
281     * Throws an exception if the specified file is not found or
282     * if directory is specified.
283     */
284     static void VerifyFile(String Filename);
285 schoenebeck 705
286 senkov 170 static std::map<int,String> bufferedNotifies;
287     static Mutex NotifyMutex;
288     static Mutex NotifyBufferMutex;
289 schoenebeck 210 static bool GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter );
290     static void CloseConnection( std::vector<yyparse_param_t>::iterator iter );
291     static std::vector<yyparse_param_t> Sessions;
292 senkov 170 static Mutex SubscriptionMutex;
293     static std::map< LSCPEvent::event_t, std::list<int> > eventSubscriptions;
294     static fd_set fdSet;
295 senkov 360
296     //Protect main thread that generates real time notify messages
297     //like voice count, stream count and buffer fill
298     //from LSCP server removing engines and channels from underneath
299     static Mutex RTNotifyMutex;
300 iliev 1130
301 iliev 1133 class EventHandler : public ChannelCountListener, public AudioDeviceCountListener,
302     public MidiDeviceCountListener, public MidiInstrumentCountListener,
303     public MidiInstrumentInfoListener, public MidiInstrumentMapCountListener,
304     public MidiInstrumentMapInfoListener, public FxSendCountListener,
305 iliev 1541 public VoiceCountListener, public StreamCountListener, public BufferFillListener,
306 schoenebeck 1686 public TotalStreamCountListener, public TotalVoiceCountListener,
307 schoenebeck 1695 public EngineChangeListener, public MidiPortCountListener {
308 iliev 1133
309     public:
310 schoenebeck 1686 EventHandler(LSCPServer* pParent);
311    
312 iliev 1130 /**
313     * Invoked when the number of sampler channels has changed.
314     * @param NewCount The new number of sampler channels.
315     */
316     virtual void ChannelCountChanged(int NewCount);
317 schoenebeck 1686 virtual void ChannelAdded(SamplerChannel* pChannel);
318     virtual void ChannelToBeRemoved(SamplerChannel* pChannel);
319 schoenebeck 1212
320 iliev 1130 /**
321     * Invoked when the number of audio output devices has changed.
322     * @param NewCount The new number of audio output devices.
323     */
324     virtual void AudioDeviceCountChanged(int NewCount);
325 schoenebeck 1212
326 iliev 1130 /**
327     * Invoked when the number of MIDI input devices has changed.
328     * @param NewCount The new number of MIDI input devices.
329     */
330     virtual void MidiDeviceCountChanged(int NewCount);
331 iliev 1133
332 iliev 1130 /**
333 schoenebeck 1695 * Invoked right before the supplied MIDI input device is going
334     * to be destroyed.
335     * @param pDevice MidiInputDevice to be deleted
336     */
337     virtual void MidiDeviceToBeDestroyed(MidiInputDevice* pDevice);
338    
339     /**
340     * Invoked to inform that a new MidiInputDevice has just been
341     * created.
342     * @param pDevice newly created MidiInputDevice
343     */
344     virtual void MidiDeviceCreated(MidiInputDevice* pDevice);
345    
346     /**
347     * Invoked when the number of MIDI input ports has changed.
348     * @param NewCount The new number of MIDI input ports.
349     */
350     virtual void MidiPortCountChanged(int NewCount);
351    
352     /**
353     * Invoked right before the supplied MIDI input port is going
354     * to be destroyed.
355     * @param pPort MidiInputPort to be deleted
356     */
357     virtual void MidiPortToBeRemoved(MidiInputPort* pPort);
358    
359     /**
360     * Invoked to inform that a new MidiInputPort has just been
361     * added.
362     * @param pPort newly created MidiInputPort
363     */
364     virtual void MidiPortAdded(MidiInputPort* pPort);
365    
366     /**
367 iliev 1130 * Invoked when the number of MIDI instruments has changed.
368     * @param MapId The numerical ID of the MIDI instrument map.
369     * @param NewCount The new number of MIDI instruments.
370     */
371     virtual void MidiInstrumentCountChanged(int MapId, int NewCount);
372 schoenebeck 1212
373 iliev 1130 /**
374     * Invoked when a MIDI instrument in a MIDI instrument map is changed.
375     * @param MapId The numerical ID of the MIDI instrument map.
376     * @param Bank The index of the MIDI bank, containing the instrument.
377     * @param Program The MIDI program number of the instrument.
378     */
379     virtual void MidiInstrumentInfoChanged(int MapId, int Bank, int Program);
380 schoenebeck 1212
381 iliev 1133 /**
382 iliev 1130 * Invoked when the number of MIDI instrument maps has changed.
383     * @param NewCount The new number of MIDI instruments.
384     */
385     virtual void MidiInstrumentMapCountChanged(int NewCount);
386    
387     /**
388     * Invoked when the settings of a MIDI instrument map are changed.
389     * @param MapId The numerical ID of the MIDI instrument map.
390     */
391     virtual void MidiInstrumentMapInfoChanged(int MapId);
392 schoenebeck 1212
393 iliev 1130 /**
394     * Invoked when the number of effect sends
395     * on the specified sampler channel has changed.
396     * @param ChannelId The numerical ID of the sampler channel.
397     * @param NewCount The new number of effect sends.
398     */
399     virtual void FxSendCountChanged(int ChannelId, int NewCount);
400 iliev 1133
401 iliev 1130 /**
402     * Invoked when the number of active voices
403     * on the specified sampler channel has changed.
404     * @param ChannelId The numerical ID of the sampler channel.
405     * @param NewCount The new number of active voices.
406     */
407     virtual void VoiceCountChanged(int ChannelId, int NewCount);
408    
409     /**
410     * Invoked when the number of active disk streams
411     * on the specified sampler channel has changed.
412     * @param ChannelId The numerical ID of the sampler channel.
413     * @param NewCount The new number of active disk streams.
414     */
415     virtual void StreamCountChanged(int ChannelId, int NewCount);
416    
417     /**
418     * Invoked when the fill state of the disk stream
419     * buffers on the specified sampler channel is changed.
420     * @param ChannelId The numerical ID of the sampler channel.
421     * @param FillData The buffer fill data for the specified sampler channel.
422     */
423     virtual void BufferFillChanged(int ChannelId, String FillData);
424    
425     /**
426     * Invoked when the total number of active voices is changed.
427     * @param NewCount The new number of active voices.
428     */
429     virtual void TotalVoiceCountChanged(int NewCount);
430 iliev 1541 virtual void TotalStreamCountChanged(int NewCount);
431 schoenebeck 1686
432     virtual void EngineToBeChanged(int ChannelId);
433     virtual void EngineChanged(int ChannelId);
434    
435     virtual ~EventHandler();
436    
437     struct midi_listener_entry {
438     SamplerChannel* pSamplerChannel;
439     EngineChannel* pEngineChannel;
440     VirtualMidiDevice* pMidiListener;
441     };
442    
443     std::vector<midi_listener_entry> channelMidiListeners;
444    
445 schoenebeck 1695 struct device_midi_listener_entry {
446     MidiInputPort* pPort;
447     VirtualMidiDevice* pMidiListener;
448     uint uiDeviceID;
449     };
450    
451     std::vector<device_midi_listener_entry> deviceMidiListeners;
452    
453 schoenebeck 1686 private:
454     LSCPServer* pParent;
455 iliev 1133 } eventHandler;
456 iliev 1161
457     #if HAVE_SQLITE3
458     class DbInstrumentsEventHandler : public InstrumentsDb::Listener {
459     public:
460     virtual void DirectoryCountChanged(String Dir);
461     virtual void DirectoryInfoChanged(String Dir);
462     virtual void DirectoryNameChanged(String Dir, String NewName);
463     virtual void InstrumentCountChanged(String Dir);
464     virtual void InstrumentInfoChanged(String Instr);
465     virtual void InstrumentNameChanged(String Instr, String NewName);
466 iliev 1200 virtual void JobStatusChanged(int JobId);
467 iliev 1161 } dbInstrumentsEventHandler;
468     #endif // HAVE_SQLITE3
469 schoenebeck 35 };
470    
471 persson 1765 }
472    
473 schoenebeck 35 #endif // __LSCPSERVER_H_

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