/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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revision 133 by capela, Fri Jun 18 14:29:02 2004 UTC revision 385 by schoenebeck, Thu Feb 17 02:53:45 2005 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 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   ***************************************************************************/   ***************************************************************************/
23    
24  #include "lscpserver.h"  #include "lscpserver.h"
25  #include "lscpresultset.h"  #include "lscpresultset.h"
26    #include "lscpevent.h"
27    
28  #include "../engines/gig/Engine.h"  #include "../engines/gig/Engine.h"
29  #include "../audiodriver/AudioOutputDeviceFactory.h"  #include "../drivers/audio/AudioOutputDeviceFactory.h"
30    #include "../drivers/midi/MidiInputDeviceFactory.h"
31    
32    /**
33     * Below are a few static members of the LSCPServer class.
34     * The big assumption here is that LSCPServer is going to remain a singleton.
35     * These members are used to support client connections.
36     * Class handles multiple connections at the same time using select() and non-blocking recv()
37     * Commands are processed by a single LSCPServer thread.
38     * Notifications are delivered either by the thread that originated them
39     * or (if the resultset is currently in progress) by the LSCPServer thread
40     * after the resultset was sent out.
41     * This makes sure that resultsets can not be interrupted by notifications.
42     * This also makes sure that the thread sending notification is not blocked
43     * by the LSCPServer thread.
44     */
45    fd_set LSCPServer::fdSet;
46    int LSCPServer::currentSocket = -1;
47    std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
48    std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
49    std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
50    std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
51    Mutex LSCPServer::NotifyMutex = Mutex();
52    Mutex LSCPServer::NotifyBufferMutex = Mutex();
53    Mutex LSCPServer::SubscriptionMutex = Mutex();
54    Mutex LSCPServer::RTNotifyMutex = Mutex();
55    
56  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {  LSCPServer::LSCPServer(Sampler* pSampler) : Thread(false, 0, -4) {
57      this->pSampler = pSampler;      this->pSampler = pSampler;
58        LSCPEvent::RegisterEvent(LSCPEvent::event_channels, "CHANNELS");
59        LSCPEvent::RegisterEvent(LSCPEvent::event_voice_count, "VOICE_COUNT");
60        LSCPEvent::RegisterEvent(LSCPEvent::event_stream_count, "STREAM_COUNT");
61        LSCPEvent::RegisterEvent(LSCPEvent::event_buffer_fill, "BUFFER_FILL");
62        LSCPEvent::RegisterEvent(LSCPEvent::event_info, "INFO");
63        LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
64    }
65    
66    /**
67     * Blocks the calling thread until the LSCP Server is initialized and
68     * accepting socket connections, if the server is already initialized then
69     * this method will return immediately.
70     * @param TimeoutSeconds     - optional: max. wait time in seconds
71     *                             (default: 0s)
72     * @param TimeoutNanoSeconds - optional: max wait time in nano seconds
73     *                             (default: 0ns)
74     * @returns  0 on success, a value less than 0 if timeout exceeded
75     */
76    int LSCPServer::WaitUntilInitialized(long TimeoutSeconds, long TimeoutNanoSeconds) {
77        return Initialized.WaitAndUnlockIf(false, TimeoutSeconds, TimeoutNanoSeconds);
78  }  }
79    
80  int LSCPServer::Main() {  int LSCPServer::Main() {
81      hSocket = socket(AF_INET, SOCK_STREAM, 0);      int hSocket = socket(AF_INET, SOCK_STREAM, 0);
82      if (hSocket < 0) {      if (hSocket < 0) {
83          std::cerr << "LSCPServer: Could not create server socket." << std::endl;          std::cerr << "LSCPServer: Could not create server socket." << std::endl;
84          //return -1;          //return -1;
# Line 43  int LSCPServer::Main() { Line 90  int LSCPServer::Main() {
90      SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);      SocketAddress.sin_addr.s_addr = htonl(INADDR_ANY);
91    
92      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {      if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
93          std::cerr << "LSCPServer: Could not bind server socket." << std::endl;          std::cerr << "LSCPServer: Could not bind server socket, retrying for " << ToString(LSCP_SERVER_BIND_TIMEOUT) << " seconds...";
94          close(hSocket);          for (int trial = 0; true; trial++) { // retry for LSCP_SERVER_BIND_TIMEOUT seconds
95          //return -1;              if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
96          exit(EXIT_FAILURE);                  if (trial > LSCP_SERVER_BIND_TIMEOUT) {
97                        std::cerr << "gave up!" << std::endl;
98                        close(hSocket);
99                        //return -1;
100                        exit(EXIT_FAILURE);
101                    }
102                    else sleep(1); // sleep 1s
103                }
104                else break; // success
105            }
106      }      }
107    
108      listen(hSocket, 1);      listen(hSocket, 1);
109      dmsg(1,("LSCPServer: Server running.\n")); // server running      Initialized.Set(true);
110    
111      // now wait for client connections and handle their requests      // now wait for client connections and handle their requests
112      sockaddr_in client;      sockaddr_in client;
113      int length = sizeof(client);      int length = sizeof(client);
114        FD_ZERO(&fdSet);
115        FD_SET(hSocket, &fdSet);
116        int maxSessions = hSocket;
117    
118      while (true) {      while (true) {
119          hSession = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);          fd_set selectSet = fdSet;
120          if (hSession < 0) {          int retval = select(maxSessions+1, &selectSet, NULL, NULL, NULL);
121              std::cerr << "LSCPServer: Client connection failed." << std::endl;          if (retval == 0)
122              close(hSocket);                  continue; //Nothing try again
123              //return -1;          if (retval == -1) {
124              exit(EXIT_FAILURE);                  std::cerr << "LSCPServer: Socket select error." << std::endl;
125          }                  close(hSocket);
126                    exit(EXIT_FAILURE);
127          dmsg(1,("LSCPServer: Client connection established.\n"));          }
128          //send(hSession, "Welcome!\r\n", 10, 0);  
129            //Accept new connections now (if any)
130          // Parser invocation          if (FD_ISSET(hSocket, &selectSet)) {
131          yyparse_param_t yyparse_param;                  int socket = accept(hSocket, (sockaddr*) &client, (socklen_t*) &length);
132          yyparse_param.pServer = this;                  if (socket < 0) {
133          yylex_init(&yyparse_param.pScanner);                          std::cerr << "LSCPServer: Client connection failed." << std::endl;
134          while (yyparse(&yyparse_param) == LSCP_SYNTAX_ERROR); // recall parser in case of syntax error                          exit(EXIT_FAILURE);
135          yylex_destroy(yyparse_param.pScanner);                  }
136    
137                    if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
138                            std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
139                            exit(EXIT_FAILURE);
140                    }
141    
142                    // Parser initialization
143                    yyparse_param_t yyparse_param;
144                    yyparse_param.pServer  = this;
145                    yyparse_param.hSession = socket;
146    
147                    Sessions.push_back(yyparse_param);
148                    FD_SET(socket, &fdSet);
149                    if (socket > maxSessions)
150                            maxSessions = socket;
151                    dmsg(1,("LSCPServer: Client connection established on socket:%d.\n", socket));
152                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection established on socket", socket));
153                    continue; //Maybe this was the only selected socket, better select again
154            }
155    
156          close(hSession);          //Something was selected and it was not the hSocket, so it must be some command(s) coming.
157          dmsg(1,("LSCPServer: Client connection terminated.\n"));          for (std::vector<yyparse_param_t>::iterator iter = Sessions.begin(); iter != Sessions.end(); iter++) {
158                    if (FD_ISSET((*iter).hSession, &selectSet)) {   //Was it this socket?
159                            if (GetLSCPCommand(iter)) {     //Have we read the entire command?
160                                    dmsg(3,("LSCPServer: Got command on socket %d, calling parser.\n", currentSocket));
161                                    int dummy; // just a temporary hack to fulfill the restart() function prototype
162                                    restart(NULL, dummy); // restart the 'scanner'
163                                    currentSocket = (*iter).hSession;  //a hack
164                                    if ((*iter).bVerbose) { // if echo mode enabled
165                                        AnswerClient(bufferedCommands[currentSocket]);
166                                    }
167                                    int result = yyparse(&(*iter));
168                                    currentSocket = -1;     //continuation of a hack
169                                    dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
170                                    if (result == LSCP_QUIT) { //Was it a quit command by any chance?
171                                            CloseConnection(iter);
172                                    }
173                            }
174                            //socket may have been closed, iter may be invalid, get out of the loop for now.
175                            //we'll be back if there is data.
176                            break;
177                    }
178            }
179    
180            //Now let's deliver late notifies (if any)
181            NotifyBufferMutex.Lock();
182            for (std::map<int,String>::iterator iterNotify = bufferedNotifies.begin(); iterNotify != bufferedNotifies.end(); iterNotify++) {
183                    send(iterNotify->first, iterNotify->second.c_str(), iterNotify->second.size(), 0);
184                    bufferedNotifies.erase(iterNotify);
185            }
186            NotifyBufferMutex.Unlock();
187      }      }
188  }  }
189    
190    void LSCPServer::CloseConnection( std::vector<yyparse_param_t>::iterator iter ) {
191            int socket = (*iter).hSession;
192            dmsg(1,("LSCPServer: Client connection terminated on socket:%d.\n",socket));
193            LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Client connection terminated on socket", socket));
194            Sessions.erase(iter);
195            FD_CLR(socket,  &fdSet);
196            SubscriptionMutex.Lock(); //Must unsubscribe this socket from all events (if any)
197            for (std::map< LSCPEvent::event_t, std::list<int> >::iterator iter = eventSubscriptions.begin(); iter != eventSubscriptions.end(); iter++) {
198                    iter->second.remove(socket);
199            }
200            SubscriptionMutex.Unlock();
201            NotifyMutex.Lock();
202            bufferedCommands.erase(socket);
203            bufferedNotifies.erase(socket);
204            close(socket);
205            NotifyMutex.Unlock();
206    }
207    
208    int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
209            int subs = 0;
210            SubscriptionMutex.Lock();
211            for( std::list<LSCPEvent::event_t>::iterator iter = events.begin();
212                            iter != events.end(); iter++)
213            {
214                    subs += eventSubscriptions.count(*iter);
215            }
216            SubscriptionMutex.Unlock();
217            return subs;
218    }
219    
220    void LSCPServer::SendLSCPNotify( LSCPEvent event ) {
221            SubscriptionMutex.Lock();
222            if (eventSubscriptions.count(event.GetType()) == 0) {
223                    SubscriptionMutex.Unlock();     //Nobody is subscribed to this event
224                    return;
225            }
226            std::list<int>::iterator iter = eventSubscriptions[event.GetType()].begin();
227            std::list<int>::iterator end = eventSubscriptions[event.GetType()].end();
228            String notify = event.Produce();
229    
230            while (true) {
231                    if (NotifyMutex.Trylock()) {
232                            for(;iter != end; iter++)
233                                    send(*iter, notify.c_str(), notify.size(), 0);
234                            NotifyMutex.Unlock();
235                            break;
236                    } else {
237                            if (NotifyBufferMutex.Trylock()) {
238                                    for(;iter != end; iter++)
239                                            bufferedNotifies[*iter] += notify;
240                                    NotifyBufferMutex.Unlock();
241                                    break;
242                            }
243                    }
244            }
245            SubscriptionMutex.Unlock();
246    }
247    
248    extern int GetLSCPCommand( void *buf, int max_size ) {
249            String command = LSCPServer::bufferedCommands[LSCPServer::currentSocket];
250            if (command.size() == 0) {              //Parser wants input but we have nothing.
251                    strcpy((char*) buf, "\n");      //So give it an empty command
252                    return 1;                       //to keep it happy.
253            }
254    
255            if (max_size < command.size()) {
256                    std::cerr << "getLSCPCommand: Flex buffer too small, ignoring the command." << std::endl;
257                    return 0;       //This will never happen
258            }
259    
260            strcpy((char*) buf, command.c_str());
261            LSCPServer::bufferedCommands.erase(LSCPServer::currentSocket);
262            return command.size();
263    }
264    
265    /**
266     * Will be called to try to read the command from the socket
267     * If command is read, it will return true. Otherwise false is returned.
268     * In any case the received portion (complete or incomplete) is saved into bufferedCommand map.
269     */
270    bool LSCPServer::GetLSCPCommand( std::vector<yyparse_param_t>::iterator iter ) {
271            int socket = (*iter).hSession;
272            char c;
273            int i = 0;
274            while (true) {
275                    int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
276                    if (result == 0) { //socket was selected, so 0 here means client has closed the connection
277                            CloseConnection(iter);
278                            break;
279                    }
280                    if (result == 1) {
281                            if (c == '\r')
282                                    continue; //Ignore CR
283                            if (c == '\n') {
284                                    LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_misc, "Received \'" + bufferedCommands[socket] + "\' on socket", socket));
285                                    bufferedCommands[socket] += "\n";
286                                    return true; //Complete command was read
287                            }
288                            bufferedCommands[socket] += c;
289                    }
290                    if (result == -1) {
291                            if (errno == EAGAIN) //Would block, try again later.
292                                    return false;
293                            switch(errno) {
294                                    case EBADF:
295                                            dmsg(2,("LSCPScanner: The argument s is an invalid descriptor.\n"));
296                                            break;
297                                    case ECONNREFUSED:
298                                            dmsg(2,("LSCPScanner: A remote host refused to allow the network connection (typically because it is not running the requested service).\n"));
299                                            break;
300                                    case ENOTCONN:
301                                            dmsg(2,("LSCPScanner: The socket is associated with a connection-oriented protocol and has not been connected (see connect(2) and accept(2)).\n"));
302                                            break;
303                                    case ENOTSOCK:
304                                            dmsg(2,("LSCPScanner: The argument s does not refer to a socket.\n"));
305                                            break;
306                                    case EAGAIN:
307                                            dmsg(2,("LSCPScanner: The socket is marked non-blocking and the receive operation would block, or a receive timeout had been set and the timeout expired before data was received.\n"));
308                                            break;
309                                    case EINTR:
310                                            dmsg(2,("LSCPScanner: The receive was interrupted by delivery of a signal before any data were available.\n"));
311                                            break;
312                                    case EFAULT:
313                                            dmsg(2,("LSCPScanner: The receive buffer pointer(s) point outside the process's address space.\n"));
314                                            break;
315                                    case EINVAL:
316                                            dmsg(2,("LSCPScanner: Invalid argument passed.\n"));
317                                            break;
318                                    case ENOMEM:
319                                            dmsg(2,("LSCPScanner: Could not allocate memory for recvmsg.\n"));
320                                            break;
321                                    default:
322                                            dmsg(2,("LSCPScanner: Unknown recv() error.\n"));
323                                            break;
324                            }
325                            CloseConnection(iter);
326                            break;
327                    }
328            }
329            return false;
330    }
331    
332  /**  /**
333   * Will be called by the parser whenever it wants to send an answer to the   * Will be called by the parser whenever it wants to send an answer to the
334   * client / frontend.   * client / frontend.
# Line 87  int LSCPServer::Main() { Line 337  int LSCPServer::Main() {
337   */   */
338  void LSCPServer::AnswerClient(String ReturnMessage) {  void LSCPServer::AnswerClient(String ReturnMessage) {
339      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));      dmsg(2,("LSCPServer::AnswerClient(ReturnMessage=%s)", ReturnMessage.c_str()));
340      send(hSession, ReturnMessage.c_str(), ReturnMessage.size(), 0);      if (currentSocket != -1) {
341                NotifyMutex.Lock();
342                send(currentSocket, ReturnMessage.c_str(), ReturnMessage.size(), 0);
343                NotifyMutex.Unlock();
344        }
345    }
346    
347    /**
348     * Find a created audio output device index.
349     */
350    int LSCPServer::GetAudioOutputDeviceIndex ( AudioOutputDevice *pDevice )
351    {
352        // Search for the created device to get its index
353        std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
354        std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
355        for (; iter != devices.end(); iter++) {
356            if (iter->second == pDevice)
357                return iter->first;
358        }
359        // Not found.
360        return -1;
361    }
362    
363    /**
364     * Find a created midi input device index.
365     */
366    int LSCPServer::GetMidiInputDeviceIndex ( MidiInputDevice *pDevice )
367    {
368        // Search for the created device to get its index
369        std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
370        std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
371        for (; iter != devices.end(); iter++) {
372            if (iter->second == pDevice)
373                return iter->first;
374        }
375        // Not found.
376        return -1;
377  }  }
378    
379  String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {  String LSCPServer::CreateAudioOutputDevice(String Driver, std::map<String,String> Parameters) {
# Line 95  String LSCPServer::CreateAudioOutputDevi Line 381  String LSCPServer::CreateAudioOutputDevi
381      LSCPResultSet result;      LSCPResultSet result;
382      try {      try {
383          AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);          AudioOutputDevice* pDevice = pSampler->CreateAudioOutputDevice(Driver, Parameters);
         std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();  
384          // search for the created device to get its index          // search for the created device to get its index
385          int index = -1;          int index = GetAudioOutputDeviceIndex(pDevice);
         std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();  
         for (; iter != devices.end(); iter++) {  
             if (iter->second == pDevice) {  
                 index = iter->first;  
                 break;  
             }  
         }  
386          if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");          if (index == -1) throw LinuxSamplerException("Internal error: could not find created audio output device.");
387          result = index; // success          result = index; // success
388      }      }
# Line 114  String LSCPServer::CreateAudioOutputDevi Line 392  String LSCPServer::CreateAudioOutputDevi
392      return result.Produce();      return result.Produce();
393  }  }
394    
395    String LSCPServer::CreateMidiInputDevice(String Driver, std::map<String,String> Parameters) {
396        dmsg(2,("LSCPServer: CreateMidiInputDevice(Driver=%s)\n", Driver.c_str()));
397        LSCPResultSet result;
398        try {
399            MidiInputDevice* pDevice = pSampler->CreateMidiInputDevice(Driver, Parameters);
400            // search for the created device to get its index
401            int index = GetMidiInputDeviceIndex(pDevice);
402            if (index == -1) throw LinuxSamplerException("Internal error: could not find created midi input device.");
403            result = index; // success
404        }
405        catch (LinuxSamplerException e) {
406            result.Error(e);
407        }
408        return result.Produce();
409    }
410    
411  String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {  String LSCPServer::DestroyAudioOutputDevice(uint DeviceIndex) {
412      dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));      dmsg(2,("LSCPServer: DestroyAudioOutputDevice(DeviceIndex=%d)\n", DeviceIndex));
413      LSCPResultSet result;      LSCPResultSet result;
414      try {      try {
415          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
416          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
417          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
418          pSampler->DestroyAudioOutputDevice(pDevice);          pSampler->DestroyAudioOutputDevice(pDevice);
419      }      }
# Line 129  String LSCPServer::DestroyAudioOutputDev Line 423  String LSCPServer::DestroyAudioOutputDev
423      return result.Produce();      return result.Produce();
424  }  }
425    
426    String LSCPServer::DestroyMidiInputDevice(uint DeviceIndex) {
427        dmsg(2,("LSCPServer: DestroyMidiInputDevice(DeviceIndex=%d)\n", DeviceIndex));
428        LSCPResultSet result;
429        try {
430            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
431            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
432            MidiInputDevice* pDevice = devices[DeviceIndex];
433            pSampler->DestroyMidiInputDevice(pDevice);
434        }
435        catch (LinuxSamplerException e) {
436            result.Error(e);
437        }
438        return result.Produce();
439    }
440    
441  /**  /**
442   * Will be called by the parser to load an instrument.   * Will be called by the parser to load an instrument.
443   */   */
444  String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel) {  String LSCPServer::LoadInstrument(String Filename, uint uiInstrument, uint uiSamplerChannel, bool bBackground) {
445      dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));      dmsg(2,("LSCPServer: LoadInstrument(Filename=%s,Instrument=%d,SamplerChannel=%d)\n", Filename.c_str(), uiInstrument, uiSamplerChannel));
446      LSCPResultSet result;      LSCPResultSet result;
447      try {      try {
448          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
449          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
450          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
451          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
452          LSCPLoadInstrument *pLoadInstrument = new LSCPLoadInstrument(pEngine, Filename.c_str(), uiInstrument);          if (!pSamplerChannel->GetAudioOutputDevice())
453          pLoadInstrument->StartThread();              throw LinuxSamplerException("No audio output device connected to sampler channel");
454            if (bBackground) {
455                InstrumentLoader.StartNewLoad(Filename, uiInstrument, pEngine);
456            }
457            else pEngine->LoadInstrument(Filename.c_str(), uiInstrument);
458      }      }
459      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
460           result.Error(e);           result.Error(e);
# Line 160  String LSCPServer::LoadEngine(String Eng Line 473  String LSCPServer::LoadEngine(String Eng
473          if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;          if ((EngineName == "GigEngine") || (EngineName == "gig")) type = Engine::type_gig;
474          else throw LinuxSamplerException("Unknown engine type");          else throw LinuxSamplerException("Unknown engine type");
475          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
476          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
477            LockRTNotify();
478          pSamplerChannel->LoadEngine(type);          pSamplerChannel->LoadEngine(type);
479            UnlockRTNotify();
480      }      }
481      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
482           result.Error(e);           result.Error(e);
# Line 180  String LSCPServer::GetChannels() { Line 495  String LSCPServer::GetChannels() {
495  }  }
496    
497  /**  /**
498     * Will be called by the parser to get the list of sampler channels.
499     */
500    String LSCPServer::ListChannels() {
501        dmsg(2,("LSCPServer: ListChannels()\n"));
502        String list;
503        std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
504        std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
505        for (; iter != channels.end(); iter++) {
506            if (list != "") list += ",";
507            list += ToString(iter->first);
508        }
509        LSCPResultSet result;
510        result.Add(list);
511        return result.Produce();
512    }
513    
514    /**
515   * Will be called by the parser to add a sampler channel.   * Will be called by the parser to add a sampler channel.
516   */   */
517  String LSCPServer::AddChannel() {  String LSCPServer::AddChannel() {
# Line 195  String LSCPServer::AddChannel() { Line 527  String LSCPServer::AddChannel() {
527  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {  String LSCPServer::RemoveChannel(uint uiSamplerChannel) {
528      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));      dmsg(2,("LSCPServer: RemoveChannel(SamplerChannel=%d)\n", uiSamplerChannel));
529      LSCPResultSet result;      LSCPResultSet result;
530        LockRTNotify();
531      pSampler->RemoveSamplerChannel(uiSamplerChannel);      pSampler->RemoveSamplerChannel(uiSamplerChannel);
532        UnlockRTNotify();
533      return result.Produce();      return result.Produce();
534  }  }
535    
# Line 217  String LSCPServer::GetEngineInfo(String Line 551  String LSCPServer::GetEngineInfo(String
551      try {      try {
552          if ((EngineName == "GigEngine") || (EngineName == "gig")) {          if ((EngineName == "GigEngine") || (EngineName == "gig")) {
553              Engine* pEngine = new LinuxSampler::gig::Engine;              Engine* pEngine = new LinuxSampler::gig::Engine;
554              result.Add(pEngine->Description());              result.Add("DESCRIPTION", pEngine->Description());
555              result.Add(pEngine->Version());              result.Add("VERSION",     pEngine->Version());
556              delete pEngine;              delete pEngine;
557          }          }
558          else throw LinuxSamplerException("Unknown engine type");          else throw LinuxSamplerException("Unknown engine type");
# Line 238  String LSCPServer::GetChannelInfo(uint u Line 572  String LSCPServer::GetChannelInfo(uint u
572      LSCPResultSet result;      LSCPResultSet result;
573      try {      try {
574          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
575          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
576          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
577    
578          //Defaults values          //Defaults values
579          String EngineName = "NONE";          String EngineName = "NONE";
580          float Volume = 0;          float Volume = 0.0f;
581          String InstrumentFileName = "NONE";          String InstrumentFileName = "NONE";
582            String InstrumentName = "NONE";
583          int InstrumentIndex = -1;          int InstrumentIndex = -1;
584          int InstrumentStatus = -1;          int InstrumentStatus = -1;
585            int AudioOutputChannels = 0;
586            String AudioRouting;
587    
588          if (pEngine) {          if (pEngine) {
589              EngineName =  pEngine->EngineName();              EngineName =  pEngine->EngineName();
590                AudioOutputChannels = pEngine->Channels();
591              Volume = pEngine->Volume();              Volume = pEngine->Volume();
592              InstrumentStatus = pEngine->InstrumentStatus();              InstrumentStatus = pEngine->InstrumentStatus();
593              InstrumentIndex = pEngine->InstrumentIndex();              InstrumentIndex = pEngine->InstrumentIndex();
594              if (InstrumentIndex != -1)              if (InstrumentIndex != -1)
595                {
596                  InstrumentFileName = pEngine->InstrumentFileName();                  InstrumentFileName = pEngine->InstrumentFileName();
597                    InstrumentName = pEngine->InstrumentName();
598                }
599                for (int chan = 0; chan < pEngine->Channels(); chan++) {
600                    if (AudioRouting != "") AudioRouting += ",";
601                    AudioRouting += ToString(pEngine->OutputChannel(chan));
602                }
603          }          }
604    
605          result.Add("ENGINE_NAME", EngineName);          result.Add("ENGINE_NAME", EngineName);
606          result.Add("VOLUME", Volume);          result.Add("VOLUME", Volume);
607    
608          //Some hardcoded stuff for now to make GUI look good          //Some not-so-hardcoded stuff to make GUI look good
609          result.Add("AUDIO_OUTPUT_DEVICE", "0");          result.Add("AUDIO_OUTPUT_DEVICE", GetAudioOutputDeviceIndex(pSamplerChannel->GetAudioOutputDevice()));
610          result.Add("AUDIO_OUTPUT_CHANNELS", "2");          result.Add("AUDIO_OUTPUT_CHANNELS", AudioOutputChannels);
611          result.Add("AUDIO_OUTPUT_ROUTING", "0,1");          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
612    
613            result.Add("MIDI_INPUT_DEVICE", GetMidiInputDeviceIndex(pSamplerChannel->GetMidiInputDevice()));
614            result.Add("MIDI_INPUT_PORT", pSamplerChannel->GetMidiInputPort());
615            if (pSamplerChannel->GetMidiInputChannel() == MidiInputPort::midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
616            else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
617    
618          result.Add("INSTRUMENT_FILE", InstrumentFileName);          result.Add("INSTRUMENT_FILE", InstrumentFileName);
619          result.Add("INSTRUMENT_NR", InstrumentIndex);          result.Add("INSTRUMENT_NR", InstrumentIndex);
620            result.Add("INSTRUMENT_NAME", InstrumentName);
621          result.Add("INSTRUMENT_STATUS", InstrumentStatus);          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
   
         //Some more hardcoded stuff for now to make GUI look good  
         result.Add("MIDI_INPUT_DEVICE", "0");  
         result.Add("MIDI_INPUT_PORT", "0");  
         result.Add("MIDI_INPUT_CHANNEL", "1");  
622      }      }
623      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
624           result.Error(e);           result.Error(e);
# Line 289  String LSCPServer::GetVoiceCount(uint ui Line 635  String LSCPServer::GetVoiceCount(uint ui
635      LSCPResultSet result;      LSCPResultSet result;
636      try {      try {
637          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
638          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
639          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
640          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
641          result.Add(pEngine->VoiceCount());          result.Add(pEngine->VoiceCount());
642      }      }
643      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 309  String LSCPServer::GetStreamCount(uint u Line 655  String LSCPServer::GetStreamCount(uint u
655      LSCPResultSet result;      LSCPResultSet result;
656      try {      try {
657          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
658          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
659          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
660          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
661          result.Add(pEngine->DiskStreamCount());          result.Add(pEngine->DiskStreamCount());
662      }      }
663      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 329  String LSCPServer::GetBufferFill(fill_re Line 675  String LSCPServer::GetBufferFill(fill_re
675      LSCPResultSet result;      LSCPResultSet result;
676      try {      try {
677          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
678          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
679          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
680          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
681          if (!pEngine->DiskStreamSupported())          if (!pEngine->DiskStreamSupported())
682              result.Add("NA");              result.Add("NA");
683          else {          else {
# Line 366  String LSCPServer::GetAvailableAudioOutp Line 712  String LSCPServer::GetAvailableAudioOutp
712      return result.Produce();      return result.Produce();
713  }  }
714    
715    String LSCPServer::GetAvailableMidiInputDrivers() {
716        dmsg(2,("LSCPServer: GetAvailableMidiInputDrivers()\n"));
717        LSCPResultSet result;
718        try {
719            String s = MidiInputDeviceFactory::AvailableDriversAsString();
720            result.Add(s);
721        }
722        catch (LinuxSamplerException e) {
723            result.Error(e);
724        }
725        return result.Produce();
726    }
727    
728    String LSCPServer::GetMidiInputDriverInfo(String Driver) {
729        dmsg(2,("LSCPServer: GetMidiInputDriverInfo(Driver=%s)\n",Driver.c_str()));
730        LSCPResultSet result;
731        try {
732            result.Add("DESCRIPTION", MidiInputDeviceFactory::GetDriverDescription(Driver));
733            result.Add("VERSION",     MidiInputDeviceFactory::GetDriverVersion(Driver));
734    
735            std::map<String,DeviceCreationParameter*> parameters = MidiInputDeviceFactory::GetAvailableDriverParameters(Driver);
736            if (parameters.size()) { // if there are parameters defined for this driver
737                String s;
738                std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
739                for (;iter != parameters.end(); iter++) {
740                    if (s != "") s += ",";
741                    s += iter->first;
742                }
743                result.Add("PARAMETERS", s);
744            }
745        }
746        catch (LinuxSamplerException e) {
747            result.Error(e);
748        }
749        return result.Produce();
750    }
751    
752  String LSCPServer::GetAudioOutputDriverInfo(String Driver) {  String LSCPServer::GetAudioOutputDriverInfo(String Driver) {
753      dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputDriverInfo(Driver=%s)\n",Driver.c_str()));
754      LSCPResultSet result;      LSCPResultSet result;
# Line 390  String LSCPServer::GetAudioOutputDriverI Line 773  String LSCPServer::GetAudioOutputDriverI
773      return result.Produce();      return result.Produce();
774  }  }
775    
776    String LSCPServer::GetMidiInputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
777        dmsg(2,("LSCPServer: GetMidiInputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
778        LSCPResultSet result;
779        try {
780            DeviceCreationParameter* pParameter = MidiInputDeviceFactory::GetDriverParameter(Driver, Parameter);
781            result.Add("TYPE",         pParameter->Type());
782            result.Add("DESCRIPTION",  pParameter->Description());
783            result.Add("MANDATORY",    pParameter->Mandatory());
784            result.Add("FIX",          pParameter->Fix());
785            result.Add("MULTIPLICITY", pParameter->Multiplicity());
786            optional<String> oDepends       = pParameter->Depends();
787            optional<String> oDefault       = pParameter->Default(DependencyList);
788            optional<String> oRangeMin      = pParameter->RangeMin(DependencyList);
789            optional<String> oRangeMax      = pParameter->RangeMax(DependencyList);
790            optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
791            if (oDepends)       result.Add("DEPENDS",       *oDepends);
792            if (oDefault)       result.Add("DEFAULT",       *oDefault);
793            if (oRangeMin)      result.Add("RANGE_MIN",     *oRangeMin);
794            if (oRangeMax)      result.Add("RANGE_MAX",     *oRangeMax);
795            if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
796        }
797        catch (LinuxSamplerException e) {
798            result.Error(e);
799        }
800        return result.Produce();
801    }
802    
803  String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {  String LSCPServer::GetAudioOutputDriverParameterInfo(String Driver, String Parameter, std::map<String,String> DependencyList) {
804      dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s)\n",Driver.c_str(),Parameter.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputDriverParameterInfo(Driver=%s,Parameter=%s,DependencyListSize=%d)\n",Driver.c_str(),Parameter.c_str(),DependencyList.size()));
805      LSCPResultSet result;      LSCPResultSet result;
806      try {      try {
807          DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);          DeviceCreationParameter* pParameter = AudioOutputDeviceFactory::GetDriverParameter(Driver, Parameter);
# Line 400  String LSCPServer::GetAudioOutputDriverP Line 810  String LSCPServer::GetAudioOutputDriverP
810          result.Add("MANDATORY",    pParameter->Mandatory());          result.Add("MANDATORY",    pParameter->Mandatory());
811          result.Add("FIX",          pParameter->Fix());          result.Add("FIX",          pParameter->Fix());
812          result.Add("MULTIPLICITY", pParameter->Multiplicity());          result.Add("MULTIPLICITY", pParameter->Multiplicity());
813          if (pParameter->Depends())       result.Add("DEPENDS",       pParameter->Depends());          optional<String> oDepends       = pParameter->Depends();
814          if (pParameter->Default())       result.Add("DEFAULT",       pParameter->Default());          optional<String> oDefault       = pParameter->Default(DependencyList);
815          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     pParameter->RangeMin());          optional<String> oRangeMin      = pParameter->RangeMin(DependencyList);
816          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     pParameter->RangeMax());          optional<String> oRangeMax      = pParameter->RangeMax(DependencyList);
817          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());          optional<String> oPossibilities = pParameter->Possibilities(DependencyList);
818            if (oDepends)       result.Add("DEPENDS",       *oDepends);
819            if (oDefault)       result.Add("DEFAULT",       *oDefault);
820            if (oRangeMin)      result.Add("RANGE_MIN",     *oRangeMin);
821            if (oRangeMax)      result.Add("RANGE_MAX",     *oRangeMax);
822            if (oPossibilities) result.Add("POSSIBILITIES", *oPossibilities);
823      }      }
824      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
825          result.Error(e);          result.Error(e);
# Line 417  String LSCPServer::GetAudioOutputDeviceC Line 832  String LSCPServer::GetAudioOutputDeviceC
832      LSCPResultSet result;      LSCPResultSet result;
833      try {      try {
834          uint count = pSampler->AudioOutputDevices();          uint count = pSampler->AudioOutputDevices();
835          result = count; // success          result.Add(count); // success
836        }
837        catch (LinuxSamplerException e) {
838            result.Error(e);
839        }
840        return result.Produce();
841    }
842    
843    String LSCPServer::GetMidiInputDeviceCount() {
844        dmsg(2,("LSCPServer: GetMidiInputDeviceCount()\n"));
845        LSCPResultSet result;
846        try {
847            uint count = pSampler->MidiInputDevices();
848            result.Add(count); // success
849      }      }
850      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
851          result.Error(e);          result.Error(e);
# Line 444  String LSCPServer::GetAudioOutputDevices Line 872  String LSCPServer::GetAudioOutputDevices
872      return result.Produce();      return result.Produce();
873  }  }
874    
875    String LSCPServer::GetMidiInputDevices() {
876        dmsg(2,("LSCPServer: GetMidiInputDevices()\n"));
877        LSCPResultSet result;
878        try {
879            String s;
880            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
881            std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
882            for (; iter != devices.end(); iter++) {
883                if (s != "") s += ",";
884                s += ToString(iter->first);
885            }
886            result.Add(s);
887        }
888        catch (LinuxSamplerException e) {
889            result.Error(e);
890        }
891        return result.Produce();
892    }
893    
894  String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {  String LSCPServer::GetAudioOutputDeviceInfo(uint DeviceIndex) {
895      dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));      dmsg(2,("LSCPServer: GetAudioOutputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
896      LSCPResultSet result;      LSCPResultSet result;
897      try {      try {
898          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
899          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
900          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
901            result.Add("DRIVER", pDevice->Driver());
902          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
903          std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();          std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
904          for (; iter != parameters.end(); iter++) {          for (; iter != parameters.end(); iter++) {
# Line 463  String LSCPServer::GetAudioOutputDeviceI Line 911  String LSCPServer::GetAudioOutputDeviceI
911      return result.Produce();      return result.Produce();
912  }  }
913    
914    String LSCPServer::GetMidiInputDeviceInfo(uint DeviceIndex) {
915        dmsg(2,("LSCPServer: GetMidiInputDeviceInfo(DeviceIndex=%d)\n",DeviceIndex));
916        LSCPResultSet result;
917        try {
918            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
919            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
920            MidiInputDevice* pDevice = devices[DeviceIndex];
921            result.Add("DRIVER", pDevice->Driver());
922            std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
923            std::map<String,DeviceCreationParameter*>::iterator iter = parameters.begin();
924            for (; iter != parameters.end(); iter++) {
925                result.Add(iter->first, iter->second->Value());
926            }
927        }
928        catch (LinuxSamplerException e) {
929            result.Error(e);
930        }
931        return result.Produce();
932    }
933    String LSCPServer::GetMidiInputPortInfo(uint DeviceIndex, uint PortIndex) {
934        dmsg(2,("LSCPServer: GetMidiInputPortInfo(DeviceIndex=%d, PortIndex=%d)\n",DeviceIndex, PortIndex));
935        LSCPResultSet result;
936        try {
937            // get MIDI input device
938            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
939            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
940            MidiInputDevice* pDevice = devices[DeviceIndex];
941    
942            // get MIDI port
943            MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
944            if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
945    
946            // return the values of all MIDI port parameters
947            std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
948            std::map<String,DeviceRuntimeParameter*>::iterator iter = parameters.begin();
949            for (; iter != parameters.end(); iter++) {
950                result.Add(iter->first, iter->second->Value());
951            }
952        }
953        catch (LinuxSamplerException e) {
954            result.Error(e);
955        }
956        return result.Produce();
957    }
958    
959  String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {  String LSCPServer::GetAudioOutputChannelInfo(uint DeviceId, uint ChannelId) {
960      dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));      dmsg(2,("LSCPServer: GetAudioOutputChannelInfo(DeviceId=%d,ChannelId)\n",DeviceId,ChannelId));
961      LSCPResultSet result;      LSCPResultSet result;
962      try {      try {
963          // get audio output device          // get audio output device
964          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
965          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
966          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
967    
968          // get audio channel          // get audio channel
969          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
970          if (!pChannel) throw LinuxSamplerException("Audio ouotput device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
971    
972          // return the values of all audio channel parameters          // return the values of all audio channel parameters
973          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
# Line 489  String LSCPServer::GetAudioOutputChannel Line 982  String LSCPServer::GetAudioOutputChannel
982      return result.Produce();      return result.Produce();
983  }  }
984    
985    String LSCPServer::GetMidiInputPortParameterInfo(uint DeviceId, uint PortId, String ParameterName) {
986        dmsg(2,("LSCPServer: GetMidiInputPortParameterInfo(DeviceId=%d,PortId=%d,ParameterName=%s)\n",DeviceId,PortId,ParameterName.c_str()));
987        LSCPResultSet result;
988        try {
989            // get MIDI input device
990            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
991            if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no midi input device with index " + ToString(DeviceId) + ".");
992            MidiInputDevice* pDevice = devices[DeviceId];
993    
994            // get midi port
995            MidiInputPort* pPort = pDevice->GetPort(PortId);
996            if (!pPort) throw LinuxSamplerException("Midi input device does not have port " + ToString(PortId) + ".");
997    
998            // get desired port parameter
999            std::map<String,DeviceRuntimeParameter*> parameters = pPort->PortParameters();
1000            if (!parameters.count(ParameterName)) throw LinuxSamplerException("Midi port does not provide a parameter '" + ParameterName + "'.");
1001            DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1002    
1003            // return all fields of this audio channel parameter
1004            result.Add("TYPE",         pParameter->Type());
1005            result.Add("DESCRIPTION",  pParameter->Description());
1006            result.Add("FIX",          pParameter->Fix());
1007            result.Add("MULTIPLICITY", pParameter->Multiplicity());
1008            if (pParameter->RangeMin())      result.Add("RANGE_MIN",     *pParameter->RangeMin());
1009            if (pParameter->RangeMax())      result.Add("RANGE_MAX",     *pParameter->RangeMax());
1010            if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1011        }
1012        catch (LinuxSamplerException e) {
1013            result.Error(e);
1014        }
1015        return result.Produce();
1016    }
1017    
1018  String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {  String LSCPServer::GetAudioOutputChannelParameterInfo(uint DeviceId, uint ChannelId, String ParameterName) {
1019      dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));      dmsg(2,("LSCPServer: GetAudioOutputChannelParameterInfo(DeviceId=%d,ChannelId=%d,ParameterName=%s)\n",DeviceId,ChannelId,ParameterName.c_str()));
1020      LSCPResultSet result;      LSCPResultSet result;
1021      try {      try {
1022          // get audio output device          // get audio output device
1023          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1024          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1025          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
1026    
1027          // get audio channel          // get audio channel
1028          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1029          if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1030    
1031          // get desired audio channel parameter          // get desired audio channel parameter
1032          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1033          if (!parameters[ParameterName]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");          if (!parameters.count(ParameterName)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParameterName + "'.");
1034          DeviceRuntimeParameter* pParameter = parameters[ParameterName];          DeviceRuntimeParameter* pParameter = parameters[ParameterName];
1035    
1036          // return all fields of this audio channel parameter          // return all fields of this audio channel parameter
# Line 512  String LSCPServer::GetAudioOutputChannel Line 1038  String LSCPServer::GetAudioOutputChannel
1038          result.Add("DESCRIPTION",  pParameter->Description());          result.Add("DESCRIPTION",  pParameter->Description());
1039          result.Add("FIX",          pParameter->Fix());          result.Add("FIX",          pParameter->Fix());
1040          result.Add("MULTIPLICITY", pParameter->Multiplicity());          result.Add("MULTIPLICITY", pParameter->Multiplicity());
1041          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     pParameter->RangeMin());          if (pParameter->RangeMin())      result.Add("RANGE_MIN",     *pParameter->RangeMin());
1042          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     pParameter->RangeMax());          if (pParameter->RangeMax())      result.Add("RANGE_MAX",     *pParameter->RangeMax());
1043          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", pParameter->Possibilities());          if (pParameter->Possibilities()) result.Add("POSSIBILITIES", *pParameter->Possibilities());
1044      }      }
1045      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1046          result.Error(e);          result.Error(e);
# Line 528  String LSCPServer::SetAudioOutputChannel Line 1054  String LSCPServer::SetAudioOutputChannel
1054      try {      try {
1055          // get audio output device          // get audio output device
1056          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1057          if (!devices[DeviceId]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");          if (!devices.count(DeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceId) + ".");
1058          AudioOutputDevice* pDevice = devices[DeviceId];          AudioOutputDevice* pDevice = devices[DeviceId];
1059    
1060          // get audio channel          // get audio channel
1061          AudioChannel* pChannel = pDevice->Channel(ChannelId);          AudioChannel* pChannel = pDevice->Channel(ChannelId);
1062          if (!pChannel) throw LinuxSamplerException("Audio output device does not have channel " + ToString(ChannelId) + ".");          if (!pChannel) throw LinuxSamplerException("Audio output device does not have audio channel " + ToString(ChannelId) + ".");
1063    
1064          // get desired audio channel parameter          // get desired audio channel parameter
1065          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();          std::map<String,DeviceRuntimeParameter*> parameters = pChannel->ChannelParameters();
1066          if (!parameters[ParamKey]) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");          if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio channel does not provide a parameter '" + ParamKey + "'.");
1067          DeviceRuntimeParameter* pParameter = parameters[ParamKey];          DeviceRuntimeParameter* pParameter = parameters[ParamKey];
1068    
1069          // set new channel parameter value          // set new channel parameter value
# Line 554  String LSCPServer::SetAudioOutputDeviceP Line 1080  String LSCPServer::SetAudioOutputDeviceP
1080      LSCPResultSet result;      LSCPResultSet result;
1081      try {      try {
1082          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();          std::map<uint,AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1083          if (!devices[DeviceIndex]) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");          if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no audio output device with index " + ToString(DeviceIndex) + ".");
1084          AudioOutputDevice* pDevice = devices[DeviceIndex];          AudioOutputDevice* pDevice = devices[DeviceIndex];
1085          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();          std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1086          if (!parameters[ParamKey]) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");          if (!parameters.count(ParamKey)) throw LinuxSamplerException("Audio output device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1087            parameters[ParamKey]->SetValue(ParamVal);
1088        }
1089        catch (LinuxSamplerException e) {
1090            result.Error(e);
1091        }
1092        return result.Produce();
1093    }
1094    
1095    String LSCPServer::SetMidiInputDeviceParameter(uint DeviceIndex, String ParamKey, String ParamVal) {
1096        dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1097        LSCPResultSet result;
1098        try {
1099            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1100            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1101            MidiInputDevice* pDevice = devices[DeviceIndex];
1102            std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1103            if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(DeviceIndex) + " does not have a device parameter '" + ParamKey + "'");
1104            parameters[ParamKey]->SetValue(ParamVal);
1105        }
1106        catch (LinuxSamplerException e) {
1107            result.Error(e);
1108        }
1109        return result.Produce();
1110    }
1111    
1112    String LSCPServer::SetMidiInputPortParameter(uint DeviceIndex, uint PortIndex, String ParamKey, String ParamVal) {
1113        dmsg(2,("LSCPServer: SetMidiOutputDeviceParameter(DeviceIndex=%d,ParamKey=%s,ParamVal=%s)\n",DeviceIndex,ParamKey.c_str(),ParamVal.c_str()));
1114        LSCPResultSet result;
1115        try {
1116            // get MIDI input device
1117            std::map<uint,MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1118            if (!devices.count(DeviceIndex)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(DeviceIndex) + ".");
1119            MidiInputDevice* pDevice = devices[DeviceIndex];
1120    
1121            // get MIDI port
1122            MidiInputPort* pMidiInputPort = pDevice->GetPort(PortIndex);
1123            if (!pMidiInputPort) throw LinuxSamplerException("There is no MIDI input port with index " + ToString(PortIndex) + ".");
1124    
1125            // set port parameter value
1126            std::map<String,DeviceRuntimeParameter*> parameters = pMidiInputPort->PortParameters();
1127            if (!parameters.count(ParamKey)) throw LinuxSamplerException("MIDI input device " + ToString(PortIndex) + " does not have a parameter '" + ParamKey + "'");
1128          parameters[ParamKey]->SetValue(ParamVal);          parameters[ParamKey]->SetValue(ParamVal);
1129      }      }
1130      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 572  String LSCPServer::SetAudioOutputDeviceP Line 1139  String LSCPServer::SetAudioOutputDeviceP
1139   */   */
1140  String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {  String LSCPServer::SetAudioOutputChannel(uint ChannelAudioOutputChannel, uint AudioOutputDeviceInputChannel, uint uiSamplerChannel) {
1141      dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));      dmsg(2,("LSCPServer: SetAudioOutputChannel(ChannelAudioOutputChannel=%d, AudioOutputDeviceInputChannel=%d, SamplerChannel=%d)\n",ChannelAudioOutputChannel,AudioOutputDeviceInputChannel,uiSamplerChannel));
1142      return "ERR:0:Not implemented yet.\r\n"; //FIXME: Add support for this in resultset class?      LSCPResultSet result;
1143        try {
1144            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1145            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1146            Engine* pEngine = pSamplerChannel->GetEngine();
1147            if (!pEngine) throw LinuxSamplerException("No engine deployed on sampler channel " + ToString(uiSamplerChannel));
1148            if (!pSamplerChannel->GetAudioOutputDevice()) throw LinuxSamplerException("No audio output device connected to sampler channel " + ToString(uiSamplerChannel));
1149            pEngine->SetOutputChannel(ChannelAudioOutputChannel, AudioOutputDeviceInputChannel);
1150        }
1151        catch (LinuxSamplerException e) {
1152             result.Error(e);
1153        }
1154        return result.Produce();
1155  }  }
1156    
1157  String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {  String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint uiSamplerChannel) {
1158      dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));      dmsg(2,("LSCPServer: SetAudiotOutputDevice(AudioDeviceId=%d, SamplerChannel=%d)\n",AudioDeviceId,uiSamplerChannel));
1159        LSCPResultSet result;
1160        try {
1161            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1162            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1163            std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1164            if (!devices.count(AudioDeviceId)) throw LinuxSamplerException("There is no audio output device with index " + ToString(AudioDeviceId));
1165            AudioOutputDevice* pDevice = devices[AudioDeviceId];
1166            pSamplerChannel->SetAudioOutputDevice(pDevice);
1167        }
1168        catch (LinuxSamplerException e) {
1169             result.Error(e);
1170        }
1171        return result.Produce();
1172    }
1173    
1174    String LSCPServer::SetAudioOutputType(String AudioOutputDriver, uint uiSamplerChannel) {
1175        dmsg(2,("LSCPServer: SetAudioOutputType(String AudioOutputDriver=%s, SamplerChannel=%d)\n",AudioOutputDriver.c_str(),uiSamplerChannel));
1176      LSCPResultSet result;      LSCPResultSet result;
1177      try {      try {
1178          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1179          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1180          // 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)          // Driver type name aliasing...
1181          if (MidiInputDriver != "ALSA") throw LinuxSamplerException("Unknown MIDI input driver '" + MidiInputDriver + "'.");          if (AudioOutputDriver == "Alsa") AudioOutputDriver = "ALSA";
1182          MidiInputDevice::type_t MidiInputType = MidiInputDevice::type_alsa;          if (AudioOutputDriver == "Jack") AudioOutputDriver = "JACK";
1183          pSamplerChannel->SetMidiInputDevice(MidiInputType);          // Check if there's one audio output device already created
1184            // for the intended audio driver type (AudioOutputDriver)...
1185            AudioOutputDevice *pDevice = NULL;
1186            std::map<uint, AudioOutputDevice*> devices = pSampler->GetAudioOutputDevices();
1187            std::map<uint, AudioOutputDevice*>::iterator iter = devices.begin();
1188            for (; iter != devices.end(); iter++) {
1189                if ((iter->second)->Driver() == AudioOutputDriver) {
1190                    pDevice = iter->second;
1191                    break;
1192                }
1193            }
1194            // If it doesn't exist, create a new one with default parameters...
1195            if (pDevice == NULL) {
1196                std::map<String,String> params;
1197                pDevice = pSampler->CreateAudioOutputDevice(AudioOutputDriver, params);
1198            }
1199            // Must have a device...
1200            if (pDevice == NULL)
1201                throw LinuxSamplerException("Internal error: could not create audio output device.");
1202            // Set it as the current channel device...
1203            pSamplerChannel->SetAudioOutputDevice(pDevice);
1204      }      }
1205      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1206           result.Error(e);           result.Error(e);
# Line 592  String LSCPServer::SetMIDIInputType(Stri Line 1208  String LSCPServer::SetMIDIInputType(Stri
1208      return result.Produce();      return result.Produce();
1209  }  }
1210    
1211  /**  String LSCPServer::SetMIDIInputPort(uint MIDIPort, uint uiSamplerChannel) {
1212   * Will be called by the parser to change the MIDI input port on which the      dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIPort=%d, SamplerChannel=%d)\n",MIDIPort,uiSamplerChannel));
  * engine of a particular sampler channel should listen to.  
  */  
 String LSCPServer::SetMIDIInputPort(String MIDIInputPort, uint uiSamplerChannel) {  
     dmsg(2,("LSCPServer: SetMIDIInputPort(MIDIInputPort=%s, Samplerchannel=%d)\n", MIDIInputPort.c_str(), uiSamplerChannel));  
1213      LSCPResultSet result;      LSCPResultSet result;
1214      try {      try {
1215          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1216          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1217          if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");          pSamplerChannel->SetMidiInputPort(MIDIPort);
         pSamplerChannel->GetMidiInputDevice()->SetInputPort(MIDIInputPort.c_str());  
1218      }      }
1219      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1220           result.Error(e);           result.Error(e);
# Line 611  String LSCPServer::SetMIDIInputPort(Stri Line 1222  String LSCPServer::SetMIDIInputPort(Stri
1222      return result.Produce();      return result.Produce();
1223  }  }
1224    
 /**  
  * Will be called by the parser to change the MIDI input channel on which the  
  * engine of a particular sampler channel should listen to.  
  */  
1225  String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {  String LSCPServer::SetMIDIInputChannel(uint MIDIChannel, uint uiSamplerChannel) {
1226      dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n", MIDIChannel, uiSamplerChannel));      dmsg(2,("LSCPServer: SetMIDIInputChannel(MIDIChannel=%d, SamplerChannel=%d)\n",MIDIChannel,uiSamplerChannel));
1227      LSCPResultSet result;      LSCPResultSet result;
1228      try {      try {
1229          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1230          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1231          if (!pSamplerChannel->GetMidiInputDevice()) throw LinuxSamplerException("No MIDI input device connected yet");          pSamplerChannel->SetMidiInputChannel((MidiInputPort::midi_chan_t) MIDIChannel);
         MidiInputDevice::type_t oldtype = pSamplerChannel->GetMidiInputDevice()->Type();  
         pSamplerChannel->SetMidiInputDevice(oldtype, (MidiInputDevice::midi_chan_t) MIDIChannel);  
1232      }      }
1233      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1234           result.Error(e);           result.Error(e);
# Line 631  String LSCPServer::SetMIDIInputChannel(u Line 1236  String LSCPServer::SetMIDIInputChannel(u
1236      return result.Produce();      return result.Produce();
1237  }  }
1238    
1239  String LSCPServer::SetAudioOutputDevice(uint AudioDeviceId, uint SamplerChannel) {  String LSCPServer::SetMIDIInputDevice(uint MIDIDeviceId, uint uiSamplerChannel) {
1240        dmsg(2,("LSCPServer: SetMIDIInputDevice(MIDIDeviceId=%d, SamplerChannel=%d)\n",MIDIDeviceId,uiSamplerChannel));
1241      LSCPResultSet result;      LSCPResultSet result;
1242      try {      try {
1243          throw LinuxSamplerException("Command not yet implemented");          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1244            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1245            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1246            if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1247            MidiInputDevice* pDevice = devices[MIDIDeviceId];
1248            pSamplerChannel->SetMidiInputDevice(pDevice);
1249        }
1250        catch (LinuxSamplerException e) {
1251             result.Error(e);
1252        }
1253        return result.Produce();
1254    }
1255    
1256    String LSCPServer::SetMIDIInputType(String MidiInputDriver, uint uiSamplerChannel) {
1257        dmsg(2,("LSCPServer: SetMIDIInputType(String MidiInputDriver=%s, SamplerChannel=%d)\n",MidiInputDriver.c_str(),uiSamplerChannel));
1258        LSCPResultSet result;
1259        try {
1260            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1261            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1262            // Driver type name aliasing...
1263            if (MidiInputDriver == "Alsa") MidiInputDriver = "ALSA";
1264            // Check if there's one MIDI input device already created
1265            // for the intended MIDI driver type (MidiInputDriver)...
1266            MidiInputDevice *pDevice = NULL;
1267            std::map<uint, MidiInputDevice*> devices = pSampler->GetMidiInputDevices();
1268            std::map<uint, MidiInputDevice*>::iterator iter = devices.begin();
1269            for (; iter != devices.end(); iter++) {
1270                if ((iter->second)->Driver() == MidiInputDriver) {
1271                    pDevice = iter->second;
1272                    break;
1273                }
1274            }
1275            // If it doesn't exist, create a new one with default parameters...
1276            if (pDevice == NULL) {
1277                std::map<String,String> params;
1278                pDevice = pSampler->CreateMidiInputDevice(MidiInputDriver, params);
1279                // Make it with at least one initial port.
1280                std::map<String,DeviceCreationParameter*> parameters = pDevice->DeviceParameters();
1281                parameters["PORTS"]->SetValue("1");
1282            }
1283            // Must have a device...
1284            if (pDevice == NULL)
1285                throw LinuxSamplerException("Internal error: could not create MIDI input device.");
1286            // Set it as the current channel device...
1287            pSamplerChannel->SetMidiInputDevice(pDevice);
1288        }
1289        catch (LinuxSamplerException e) {
1290             result.Error(e);
1291        }
1292        return result.Produce();
1293    }
1294    
1295    /**
1296     * Will be called by the parser to change the MIDI input device, port and channel on which
1297     * engine of a particular sampler channel should listen to.
1298     */
1299    String LSCPServer::SetMIDIInput(uint MIDIDeviceId, uint MIDIPort, uint MIDIChannel, uint uiSamplerChannel) {
1300        dmsg(2,("LSCPServer: SetMIDIInput(MIDIDeviceId=%d, MIDIPort=%d, MIDIChannel=%d, SamplerChannel=%d)\n", MIDIDeviceId, MIDIPort, MIDIChannel, uiSamplerChannel));
1301        LSCPResultSet result;
1302        try {
1303            SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1304            if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1305            std::map<uint, MidiInputDevice*> devices =  pSampler->GetMidiInputDevices();
1306            if (!devices.count(MIDIDeviceId)) throw LinuxSamplerException("There is no MIDI input device with index " + ToString(MIDIDeviceId));
1307            MidiInputDevice* pDevice = devices[MIDIDeviceId];
1308            pSamplerChannel->SetMidiInput(pDevice, MIDIPort, (MidiInputPort::midi_chan_t) MIDIChannel);
1309      }      }
1310      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1311           result.Error(e);           result.Error(e);
# Line 646  String LSCPServer::SetAudioOutputDevice( Line 1317  String LSCPServer::SetAudioOutputDevice(
1317   * Will be called by the parser to change the global volume factor on a   * Will be called by the parser to change the global volume factor on a
1318   * particular sampler channel.   * particular sampler channel.
1319   */   */
1320  String LSCPServer::SetVolume(double Volume, uint uiSamplerChannel) {  String LSCPServer::SetVolume(double dVolume, uint uiSamplerChannel) {
1321      dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", Volume, uiSamplerChannel));      dmsg(2,("LSCPServer: SetVolume(Volume=%f, SamplerChannel=%d)\n", dVolume, uiSamplerChannel));
1322      LSCPResultSet result;      LSCPResultSet result;
1323      try {      try {
1324          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1325          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1326          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
1327          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1328          pEngine->Volume(Volume);          pEngine->Volume(dVolume);
1329      }      }
1330      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1331           result.Error(e);           result.Error(e);
# Line 670  String LSCPServer::ResetChannel(uint uiS Line 1341  String LSCPServer::ResetChannel(uint uiS
1341      LSCPResultSet result;      LSCPResultSet result;
1342      try {      try {
1343          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);          SamplerChannel* pSamplerChannel = pSampler->GetSamplerChannel(uiSamplerChannel);
1344          if (!pSamplerChannel) throw LinuxSamplerException("Index out of bounds");          if (!pSamplerChannel) throw LinuxSamplerException("Invalid sampler channel number " + ToString(uiSamplerChannel));
1345          Engine* pEngine = pSamplerChannel->GetEngine();          Engine* pEngine = pSamplerChannel->GetEngine();
1346          if (!pEngine) throw LinuxSamplerException("No engine loaded on channel");          if (!pEngine) throw LinuxSamplerException("No engine loaded on sampler channel");
1347          pEngine->Reset();          pEngine->Reset();
1348      }      }
1349      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
# Line 682  String LSCPServer::ResetChannel(uint uiS Line 1353  String LSCPServer::ResetChannel(uint uiS
1353  }  }
1354    
1355  /**  /**
1356     * Will be called by the parser to reset the whole sampler.
1357     */
1358    String LSCPServer::ResetSampler() {
1359        dmsg(2,("LSCPServer: ResetSampler()\n"));
1360        pSampler->Reset();
1361        LSCPResultSet result;
1362        return result.Produce();
1363    }
1364    
1365    /**
1366   * Will be called by the parser to subscribe a client (frontend) on the   * Will be called by the parser to subscribe a client (frontend) on the
1367   * server for receiving event messages.   * server for receiving event messages.
1368   */   */
1369  String LSCPServer::SubscribeNotification(uint UDPPort) {  String LSCPServer::SubscribeNotification(LSCPEvent::event_t type) {
1370      dmsg(2,("LSCPServer: SubscribeNotification(UDPPort=%d)\n", UDPPort));      dmsg(2,("LSCPServer: SubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1371      return "ERR:0:Not implemented yet.\r\n";      LSCPResultSet result;
1372        SubscriptionMutex.Lock();
1373        eventSubscriptions[type].push_back(currentSocket);
1374        SubscriptionMutex.Unlock();
1375        return result.Produce();
1376  }  }
1377    
1378  /**  /**
1379   * Will be called by the parser to unsubscribe a client on the server   * Will be called by the parser to unsubscribe a client on the server
1380   * for not receiving further event messages.   * for not receiving further event messages.
1381   */   */
1382  String LSCPServer::UnsubscribeNotification(String SessionID) {  String LSCPServer::UnsubscribeNotification(LSCPEvent::event_t type) {
1383      dmsg(2,("LSCPServer: UnsubscribeNotification(SessionID=%s)\n", SessionID.c_str()));      dmsg(2,("LSCPServer: UnsubscribeNotification(Event=%s)\n", LSCPEvent::Name(type).c_str()));
1384      return "ERR:0:Not implemented yet.\r\n";      LSCPResultSet result;
1385  }      SubscriptionMutex.Lock();
1386        eventSubscriptions[type].remove(currentSocket);
1387        SubscriptionMutex.Unlock();
1388  // Instrument loader constructor.      return result.Produce();
 LSCPLoadInstrument::LSCPLoadInstrument(Engine* pEngine, String Filename, uint uiInstrument)  
     : Thread(false, 0, -4)  
 {  
     this->pEngine = pEngine;  
     this->Filename = Filename;  
     this->uiInstrument = uiInstrument;  
1389  }  }
1390    
1391  // Instrument loader process.  /**
1392  int LSCPLoadInstrument::Main()   * Will be called by the parser to enable or disable echo mode; if echo
1393  {   * mode is enabled, all commands from the client will (immediately) be
1394     * echoed back to the client.
1395     */
1396    String LSCPServer::SetEcho(yyparse_param_t* pSession, double boolean_value) {
1397        dmsg(2,("LSCPServer: SetEcho(val=%f)\n", boolean_value));
1398        LSCPResultSet result;
1399      try {      try {
1400          pEngine->LoadInstrument(Filename.c_str(), uiInstrument);          if      (boolean_value == 0) pSession->bVerbose = false;
1401            else if (boolean_value == 1) pSession->bVerbose = true;
1402            else throw LinuxSamplerException("Not a boolean value, must either be 0 or 1");
1403      }      }
   
1404      catch (LinuxSamplerException e) {      catch (LinuxSamplerException e) {
1405          e.PrintMessage();           result.Error(e);
1406      }      }
1407        return result.Produce();
     // Always re-enable the engine.  
     pEngine->Enable();  
   
     // FIXME: Shoot ourselves on the foot?  
     delete this;  
1408  }  }
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