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

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Revision 129 - (hide annotations) (download)
Tue Jun 15 03:30:16 2004 UTC (19 years, 9 months ago) by senkov
File size: 28931 byte(s)
Small change to generate "NA" resultset using resultset class.

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 35 * *
7     * This program is free software; you can redistribute it and/or modify *
8     * it under the terms of the GNU General Public License as published by *
9     * the Free Software Foundation; either version 2 of the License, or *
10     * (at your option) any later version. *
11     * *
12     * This program is distributed in the hope that it will be useful, *
13     * but WITHOUT ANY WARRANTY; without even the implied warranty of *
14     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15     * GNU General Public License for more details. *
16     * *
17     * You should have received a copy of the GNU General Public License *
18     * along with this program; if not, write to the Free Software *
19     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20     * MA 02111-1307 USA *
21     ***************************************************************************/
22    
23     #include "lscpserver.h"
24 senkov 113 #include "lscpresultset.h"
25 schoenebeck 35
26 schoenebeck 53 #include "../engines/gig/Engine.h"
27 schoenebeck 123 #include "../audiodriver/AudioOutputDeviceFactory.h"
28 schoenebeck 53
29     LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {
30     this->pSampler = pSampler;
31 schoenebeck 35 }
32    
33     int LSCPServer::Main() {
34     hSocket = socket(AF_INET, SOCK_STREAM, 0);
35     if (hSocket < 0) {
36     std::cerr << "LSCPServer: Could not create server socket." << std::endl;
37 schoenebeck 53 //return -1;
38     exit(EXIT_FAILURE);
39 schoenebeck 35 }
40    
41     SocketAddress.sin_family = AF_INET;
42     SocketAddress.sin_port = htons(LSCP_PORT);
43     SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
44    
45     if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
46     std::cerr << "LSCPServer: Could not bind server socket." << std::endl;
47     close(hSocket);
48 schoenebeck 53 //return -1;
49     exit(EXIT_FAILURE);
50 schoenebeck 35 }
51    
52     listen(hSocket, 1);
53     dmsg(1,("LSCPServer: Server running.\n")); // server running
54    
55     // now wait for client connections and handle their requests
56     sockaddr_in client;
57     int length = sizeof(client);
58     while (true) {
59     hSession = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
60     if (hSession < 0) {
61     std::cerr << "LSCPServer: Client connection failed." << std::endl;
62     close(hSocket);
63 schoenebeck 53 //return -1;
64     exit(EXIT_FAILURE);
65 schoenebeck 35 }
66    
67     dmsg(1,("LSCPServer: Client connection established.\n"));
68     //send(hSession, "Welcome!\r\n", 10, 0);
69    
70     // Parser invocation
71     yyparse_param_t yyparse_param;
72     yyparse_param.pServer = this;
73     yylex_init(&yyparse_param.pScanner);
74     while (yyparse(&yyparse_param) == LSCP_SYNTAX_ERROR); // recall parser in case of syntax error
75     yylex_destroy(yyparse_param.pScanner);
76    
77     close(hSession);
78     dmsg(1,("LSCPServer: Client connection terminated.\n"));
79     }
80     }
81    
82     /**
83     * Will be called by the parser whenever it wants to send an answer to the
84     * client / frontend.
85     *
86     * @param ReturnMessage - message that will be send to the client
87     */
88     void LSCPServer::AnswerClient(String ReturnMessage) {
89     dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
90     send(hSession, ReturnMessage.c_str(), ReturnMessage.size(), 0);
91     }
92    
93 schoenebeck 123 String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
94     dmsg(2,("LSCPServer: CreateAudioOutputDevice(Driver=%s)\n", Driver.c_str()));
95     LSCPResultSet result;
96     try {
97     AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
98     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
99     // search for the created device to get its index
100     int index = -1;
101     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
102     for (; iter != devices.end(); iter++) {
103     if (iter->second == pDevice) {
104     index = iter->first;
105     break;
106     }
107     }
108     if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
109     result = index; // success
110     }
111     catch (LinuxSamplerException e) {
112     result.Error(e);
113     }
114     return result.Produce();
115     }
116    
117     String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
118     dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
119     LSCPResultSet result;
120     try {
121     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
122     if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
123     AudioOutputDevice* pDevice = devices[DeviceIndex];
124     pSampler->DestroyAudioOutputDevice(pDevice);
125     }
126     catch (LinuxSamplerException e) {
127     result.Error(e);
128     }
129     return result.Produce();
130     }
131    
132 schoenebeck 35 /**
133     * Will be called by the parser to load an instrument.
134     */
135 schoenebeck 53 String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel) {
136     dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
137 senkov 120 LSCPResultSet result;
138 schoenebeck 53 try {
139     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
140     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
141     Engine* pEngine = pSamplerChannel->GetEngine();
142     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
143     pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
144     }
145     catch (LinuxSamplerException e) {
146 senkov 120 result.Error(e);
147 schoenebeck 53 }
148 senkov 120 return result.Produce();
149 schoenebeck 35 }
150    
151     /**
152     * Will be called by the parser to load and deploy an engine.
153     */
154 schoenebeck 53 String LSCPServer::LoadEngine(String EngineName, uint uiSamplerChannel) {
155     dmsg(2,("LSCPServer: LoadEngine(EngineName=%s,SamplerChannel=%d)\n", EngineName.c_str(), uiSamplerChannel));
156 senkov 120 LSCPResultSet result;
157 schoenebeck 53 try {
158 schoenebeck 64 Engine::type_t type;
159 senkov 120 if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
160 schoenebeck 53 else throw LinuxSamplerException("Unknown engine type");
161     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
162     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
163     pSamplerChannel->LoadEngine(type);
164     }
165     catch (LinuxSamplerException e) {
166 senkov 120 result.Error(e);
167 schoenebeck 53 }
168 senkov 120 return result.Produce();
169 schoenebeck 35 }
170    
171     /**
172     * Will be called by the parser to get the amount of sampler channels.
173     */
174     String LSCPServer::GetChannels() {
175     dmsg(2,("LSCPServer: GetChannels()\n"));
176 senkov 120 LSCPResultSet result;
177     result.Add(pSampler->SamplerChannels());
178     return result.Produce();
179 schoenebeck 35 }
180    
181     /**
182     * Will be called by the parser to add a sampler channel.
183     */
184     String LSCPServer::AddChannel() {
185     dmsg(2,("LSCPServer: AddChannel()\n"));
186 schoenebeck 53 SamplerChannel* pSamplerChannel = pSampler->AddSamplerChannel();
187 senkov 120 LSCPResultSet result(pSamplerChannel->Index());
188     return result.Produce();
189 schoenebeck 35 }
190    
191     /**
192     * Will be called by the parser to remove a sampler channel.
193     */
194 schoenebeck 53 String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
195     dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
196 senkov 120 LSCPResultSet result;
197 schoenebeck 53 pSampler->RemoveSamplerChannel(uiSamplerChannel);
198 senkov 120 return result.Produce();
199 schoenebeck 35 }
200    
201     /**
202     * Will be called by the parser to get all available engines.
203     */
204     String LSCPServer::GetAvailableEngines() {
205     dmsg(2,("LSCPServer: GetAvailableEngines()\n"));
206 senkov 120 LSCPResultSet result("GigEngine");
207     return result.Produce();
208 schoenebeck 35 }
209    
210     /**
211     * Will be called by the parser to get descriptions for a particular engine.
212     */
213     String LSCPServer::GetEngineInfo(String EngineName) {
214     dmsg(2,("LSCPServer: GetEngineInfo(EngineName=%s)\n", EngineName.c_str()));
215 senkov 120 LSCPResultSet result;
216 schoenebeck 53 try {
217 senkov 120 if ((EngineName == "GigEngine") || (EngineName == "gig")) {
218 schoenebeck 53 Engine* pEngine = new LinuxSampler::gig::Engine;
219 senkov 120 result.Add(pEngine->Description());
220 schoenebeck 123 result.Add(pEngine->Version());
221 schoenebeck 53 delete pEngine;
222     }
223     else throw LinuxSamplerException("Unknown engine type");
224     }
225     catch (LinuxSamplerException e) {
226 senkov 120 result.Error(e);
227 schoenebeck 53 }
228 senkov 120 return result.Produce();
229 schoenebeck 35 }
230    
231     /**
232     * Will be called by the parser to get informations about a particular
233     * sampler channel.
234     */
235 schoenebeck 53 String LSCPServer::GetChannelInfo(uint uiSamplerChannel) {
236     dmsg(2,("LSCPServer: GetChannelInfo(SamplerChannel=%d)\n", uiSamplerChannel));
237 senkov 120 LSCPResultSet result;
238 senkov 113 try {
239     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
240     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
241     Engine* pEngine = pSamplerChannel->GetEngine();
242 schoenebeck 123
243 senkov 117 //Defaults values
244     String EngineName = "NONE";
245     float Volume = 0;
246     String InstrumentFileName = "NONE";
247     int InstrumentIndex = 0;
248 schoenebeck 123
249 senkov 113 if (pEngine) {
250 senkov 117 EngineName = pEngine->EngineName();
251     Volume = pEngine->Volume();
252     int iIdx = pEngine->InstrumentIndex();
253     if (iIdx != -1) {
254     InstrumentFileName = pEngine->InstrumentFileName();
255     InstrumentIndex = iIdx;
256     }
257 senkov 113 }
258 senkov 117
259     result.Add("ENGINE_NAME", EngineName);
260     result.Add("VOLUME", Volume);
261    
262 senkov 113 //Some hardcoded stuff for now to make GUI look good
263     result.Add("AUDIO_OUTPUT_DEVICE", "0");
264     result.Add("AUDIO_OUTPUT_CHANNELS", "2");
265     result.Add("AUDIO_OUTPUT_ROUTING", "0,1");
266    
267 senkov 117 result.Add("INSTRUMENT_FILE", InstrumentFileName);
268     result.Add("INSTRUMENT_NR", InstrumentIndex);
269 schoenebeck 123
270 senkov 117 //Some more hardcoded stuff for now to make GUI look good
271 senkov 113 result.Add("MIDI_INPUT_DEVICE", "0");
272     result.Add("MIDI_INPUT_PORT", "0");
273     result.Add("MIDI_INPUT_CHANNEL", "1");
274     }
275     catch (LinuxSamplerException e) {
276 senkov 120 result.Error(e);
277 senkov 113 }
278 senkov 120 return result.Produce();
279 schoenebeck 35 }
280    
281     /**
282     * Will be called by the parser to get the amount of active voices on a
283     * particular sampler channel.
284     */
285 schoenebeck 53 String LSCPServer::GetVoiceCount(uint uiSamplerChannel) {
286     dmsg(2,("LSCPServer: GetVoiceCount(SamplerChannel=%d)\n", uiSamplerChannel));
287 senkov 120 LSCPResultSet result;
288 schoenebeck 53 try {
289     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
290     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
291     Engine* pEngine = pSamplerChannel->GetEngine();
292     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
293 senkov 120 result.Add(pEngine->VoiceCount());
294 schoenebeck 53 }
295     catch (LinuxSamplerException e) {
296 senkov 120 result.Error(e);
297 schoenebeck 53 }
298 senkov 120 return result.Produce();
299 schoenebeck 35 }
300    
301     /**
302     * Will be called by the parser to get the amount of active disk streams on a
303     * particular sampler channel.
304     */
305 schoenebeck 53 String LSCPServer::GetStreamCount(uint uiSamplerChannel) {
306     dmsg(2,("LSCPServer: GetStreamCount(SamplerChannel=%d)\n", uiSamplerChannel));
307 senkov 120 LSCPResultSet result;
308 schoenebeck 53 try {
309     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
310     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
311     Engine* pEngine = pSamplerChannel->GetEngine();
312     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
313 senkov 120 result.Add(pEngine->DiskStreamCount());
314 schoenebeck 53 }
315     catch (LinuxSamplerException e) {
316 senkov 120 result.Error(e);
317 schoenebeck 53 }
318 senkov 120 return result.Produce();
319 schoenebeck 35 }
320    
321     /**
322     * Will be called by the parser to get the buffer fill states of all disk
323     * streams on a particular sampler channel.
324     */
325 schoenebeck 53 String LSCPServer::GetBufferFill(fill_response_t ResponseType, uint uiSamplerChannel) {
326     dmsg(2,("LSCPServer: GetBufferFill(ResponseType=%d, SamplerChannel=%d)\n", ResponseType, uiSamplerChannel));
327 senkov 120 LSCPResultSet result;
328 schoenebeck 53 try {
329     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
330     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
331     Engine* pEngine = pSamplerChannel->GetEngine();
332     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
333 senkov 129 if (!pEngine->DiskStreamSupported())
334     result.Add("NA");
335     else {
336     switch (ResponseType) {
337     case fill_response_bytes:
338     result.Add(pEngine->DiskStreamBufferFillBytes());
339     break;
340     case fill_response_percentage:
341     result.Add(pEngine->DiskStreamBufferFillPercentage());
342     break;
343     default:
344     throw LinuxSamplerException("Unknown fill response type");
345     }
346     }
347 schoenebeck 53 }
348     catch (LinuxSamplerException e) {
349 senkov 120 result.Error(e);
350 schoenebeck 53 }
351 senkov 120 return result.Produce();
352 schoenebeck 35 }
353    
354 schoenebeck 123 String LSCPServer::GetAvailableAudioOutputDrivers() {
355     dmsg(2,("LSCPServer: GetAvailableAudioOutputDrivers()\n"));
356 senkov 120 LSCPResultSet result;
357 schoenebeck 53 try {
358 schoenebeck 123 String s = AudioOutputDeviceFactory::AvailableDriversAsString();
359     result.Add(s);
360 schoenebeck 53 }
361     catch (LinuxSamplerException e) {
362 schoenebeck 123 result.Error(e);
363 schoenebeck 53 }
364 senkov 120 return result.Produce();
365 schoenebeck 35 }
366    
367 schoenebeck 123 String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
368     dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
369     LSCPResultSet result;
370     try {
371     result.Add("DESCRIPTION", AudioOutputDeviceFactory::GetDriverDescription(Driver));
372     result.Add("VERSION", AudioOutputDeviceFactory::GetDriverVersion(Driver));
373    
374     std::map<String,DeviceCreationParameter*> parameters = AudioOutputDeviceFactory::GetAvailableDriverParameters(Driver);
375     if (parameters.size()) { // if there are parameters defined for this driver
376     String s;
377     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
378     for (;iter != parameters.end(); iter++) {
379     if (s != "") s += ",";
380     s += iter->first;
381     }
382     result.Add("PARAMETERS", s);
383     }
384     }
385     catch (LinuxSamplerException e) {
386     result.Error(e);
387     }
388     return result.Produce();
389     }
390    
391     String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
392     dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));
393     LSCPResultSet result;
394     try {
395     DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
396     result.Add("TYPE", pParameter->Type());
397     result.Add("DESCRIPTION", pParameter->Description());
398     result.Add("MANDATORY", pParameter->Mandatory());
399     result.Add("FIX", pParameter->Fix());
400     result.Add("MULTIPLICITY", pParameter->Multiplicity());
401     if (pParameter->Depends()) result.Add("DEPENDS", pParameter->Depends());
402     if (pParameter->Default()) result.Add("DEFAULT", pParameter->Default());
403     if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin());
404     if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax());
405     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());
406     }
407     catch (LinuxSamplerException e) {
408     result.Error(e);
409     }
410     return result.Produce();
411     }
412    
413     String LSCPServer::GetAudioOutputDeviceCount() {
414     dmsg(2,("LSCPServer: GetAudioOutputDeviceCount()\n"));
415     LSCPResultSet result;
416     try {
417     uint count = pSampler->AudioOutputDevices();
418     result = count; // success
419     }
420     catch (LinuxSamplerException e) {
421     result.Error(e);
422     }
423     return result.Produce();
424     }
425    
426     String LSCPServer::GetAudioOutputDevices() {
427     dmsg(2,("LSCPServer: GetAudioOutputDevices()\n"));
428     LSCPResultSet result;
429     try {
430     String s;
431     std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
432     std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
433     for (; iter != devices.end(); iter++) {
434     if (s != "") s += ",";
435     s += ToString(iter->first);
436     }
437     result.Add(s);
438     }
439     catch (LinuxSamplerException e) {
440     result.Error(e);
441     }
442     return result.Produce();
443     }
444    
445     String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
446     dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
447     LSCPResultSet result;
448     try {
449     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
450     if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
451     AudioOutputDevice* pDevice = devices[DeviceIndex];
452     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
453     std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
454     for (; iter != parameters.end(); iter++) {
455     result.Add(iter->first, iter->second->Value());
456     }
457     }
458     catch (LinuxSamplerException e) {
459     result.Error(e);
460     }
461     return result.Produce();
462     }
463    
464     String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
465     dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
466     LSCPResultSet result;
467     try {
468     // get audio output device
469     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
470     if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
471     AudioOutputDevice* pDevice = devices[DeviceId];
472    
473     // get audio channel
474     AudioChannel* pChannel = pDevice->Channel(ChannelId);
475     if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + ".");
476    
477     // return the values of all audio channel parameters
478     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
479     std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
480     for (; iter != parameters.end(); iter++) {
481     result.Add(iter->first, iter->second->Value());
482     }
483     }
484     catch (LinuxSamplerException e) {
485     result.Error(e);
486     }
487     return result.Produce();
488     }
489    
490     String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
491     dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
492     LSCPResultSet result;
493     try {
494     // get audio output device
495     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
496     if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
497     AudioOutputDevice* pDevice = devices[DeviceId];
498    
499     // get audio channel
500     AudioChannel* pChannel = pDevice->Channel(ChannelId);
501     if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
502    
503     // get desired audio channel parameter
504     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
505     if (!parameters[ParameterName]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
506     DeviceRuntimeParameter* pParameter = parameters[ParameterName];
507    
508     // return all fields of this audio channel parameter
509     result.Add("TYPE", pParameter->Type());
510     result.Add("DESCRIPTION", pParameter->Description());
511     result.Add("FIX", pParameter->Fix());
512     result.Add("MULTIPLICITY", pParameter->Multiplicity());
513     if (pParameter->RangeMin()) result.Add("RANGE_MIN", pParameter->RangeMin());
514     if (pParameter->RangeMax()) result.Add("RANGE_MAX", pParameter->RangeMax());
515     if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());
516     }
517     catch (LinuxSamplerException e) {
518     result.Error(e);
519     }
520     return result.Produce();
521     }
522    
523     String LSCPServer::SetAudioOutputChannelParameter(uint DeviceId, uint ChannelId, String ParamKey, String ParamVal) {
524     dmsg(2,("LSCPServer: SetAudioOutputChannelParameter(DeviceId=%d,ChannelId=%d,ParamKey=%s,ParamVal=%s)\n",DeviceId,ChannelId,ParamKey.c_str(),ParamVal.c_str()));
525     LSCPResultSet result;
526     try {
527     // get audio output device
528     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
529     if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
530     AudioOutputDevice* pDevice = devices[DeviceId];
531    
532     // get audio channel
533     AudioChannel* pChannel = pDevice->Channel(ChannelId);
534     if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");
535    
536     // get desired audio channel parameter
537     std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
538     if (!parameters[ParamKey]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
539     DeviceRuntimeParameter* pParameter = parameters[ParamKey];
540    
541     // set new channel parameter value
542     pParameter->SetValue(ParamVal);
543     }
544     catch (LinuxSamplerException e) {
545     result.Error(e);
546     }
547     return result.Produce();
548     }
549    
550     String LSCPServer::SetAudioOutputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
551     dmsg(2,("LSCPServer: SetAudioOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
552     LSCPResultSet result;
553     try {
554     std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
555     if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
556     AudioOutputDevice* pDevice = devices[DeviceIndex];
557     std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
558     if (!parameters[ParamKey]) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
559     parameters[ParamKey]->SetValue(ParamVal);
560     }
561     catch (LinuxSamplerException e) {
562     result.Error(e);
563     }
564     return result.Produce();
565     }
566    
567 schoenebeck 35 /**
568     * Will be called by the parser to change the audio output channel for
569     * playback on a particular sampler channel.
570     */
571 schoenebeck 123 String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
572     dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
573 senkov 120 return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class?
574 schoenebeck 35 }
575    
576 schoenebeck 123 String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
577     dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
578 senkov 120 LSCPResultSet result;
579 schoenebeck 53 try {
580     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
581     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
582 schoenebeck 123 // FIXME: workaround until MIDI driver configuration is implemented (using a Factory class for the MIDI input drivers then, like its already done for audio output drivers)
583     if (MidiInputDriver != "ALSA") throw LinuxSamplerException("Unknown MIDI input driver '" + MidiInputDriver + "'.");
584     MidiInputDevice::type_t MidiInputType = MidiInputDevice::type_alsa;
585 schoenebeck 53 pSamplerChannel->SetMidiInputDevice(MidiInputType);
586     }
587     catch (LinuxSamplerException e) {
588 senkov 120 result.Error(e);
589 schoenebeck 53 }
590 senkov 120 return result.Produce();
591 schoenebeck 53 }
592    
593 schoenebeck 35 /**
594     * Will be called by the parser to change the MIDI input port on which the
595     * engine of a particular sampler channel should listen to.
596     */
597 senkov 68 String LSCPServer::SetMIDIInputPort(String MIDIInputPort, uint uiSamplerChannel) {
598     dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIInputPort=%s, Samplerchannel=%d)\n", MIDIInputPort.c_str(), uiSamplerChannel));
599 senkov 120 LSCPResultSet result;
600 senkov 68 try {
601     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
602     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
603     if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");
604     pSamplerChannel->GetMidiInputDevice()->SetInputPort(MIDIInputPort.c_str());
605     }
606     catch (LinuxSamplerException e) {
607 senkov 120 result.Error(e);
608 senkov 68 }
609 senkov 120 return result.Produce();
610 schoenebeck 35 }
611    
612     /**
613     * Will be called by the parser to change the MIDI input channel on which the
614     * engine of a particular sampler channel should listen to.
615     */
616 schoenebeck 53 String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
617     dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n", MIDIChannel, uiSamplerChannel));
618 senkov 120 LSCPResultSet result;
619 schoenebeck 64 try {
620     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
621     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
622     if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");
623     MidiInputDevice::type_t oldtype = pSamplerChannel->GetMidiInputDevice()->Type();
624 senkov 79 pSamplerChannel->SetMidiInputDevice(oldtype, (MidiInputDevice::midi_chan_t) MIDIChannel);
625 schoenebeck 64 }
626     catch (LinuxSamplerException e) {
627 senkov 120 result.Error(e);
628 schoenebeck 64 }
629 senkov 120 return result.Produce();
630 schoenebeck 35 }
631    
632 schoenebeck 123 String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel) {
633     LSCPResultSet result;
634     try {
635     throw LinuxSamplerException("Command not yet implemented");
636     }
637     catch (LinuxSamplerException e) {
638     result.Error(e);
639     }
640     return result.Produce();
641     }
642    
643 schoenebeck 35 /**
644     * Will be called by the parser to change the global volume factor on a
645     * particular sampler channel.
646     */
647 schoenebeck 53 String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) {
648     dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel));
649 senkov 120 LSCPResultSet result;
650 schoenebeck 53 try {
651     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
652     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
653     Engine* pEngine = pSamplerChannel->GetEngine();
654     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
655     pEngine->Volume(Volume);
656     }
657     catch (LinuxSamplerException e) {
658 senkov 120 result.Error(e);
659 schoenebeck 53 }
660 senkov 120 return result.Produce();
661 schoenebeck 35 }
662    
663     /**
664     * Will be called by the parser to reset a particular sampler channel.
665     */
666 schoenebeck 53 String LSCPServer::ResetChannel(uint uiSamplerChannel) {
667     dmsg(2,("LSCPServer: ResetChannel(SamplerChannel=%d)\n", uiSamplerChannel));
668 senkov 120 LSCPResultSet result;
669 schoenebeck 53 try {
670     SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
671     if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");
672     Engine* pEngine = pSamplerChannel->GetEngine();
673     if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");
674     pEngine->Reset();
675     }
676     catch (LinuxSamplerException e) {
677 senkov 120 result.Error(e);
678 schoenebeck 53 }
679 senkov 120 return result.Produce();
680 schoenebeck 35 }
681    
682     /**
683     * Will be called by the parser to subscribe a client (frontend) on the
684     * server for receiving event messages.
685     */
686     String LSCPServer::SubscribeNotification(uint UDPPort) {
687     dmsg(2,("LSCPServer: SubscribeNotification(UDPPort=%d)\n", UDPPort));
688     return "ERR:0:Not implemented yet.\r\n";
689     }
690    
691     /**
692     * Will be called by the parser to unsubscribe a client on the server
693     * for not receiving further event messages.
694     */
695     String LSCPServer::UnsubscribeNotification(String SessionID) {
696     dmsg(2,("LSCPServer: UnsubscribeNotification(SessionID=%s)\n", SessionID.c_str()));
697     return "ERR:0:Not implemented yet.\r\n";
698     }

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