/[svn]/liblscp/trunk/src/client.c
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revision 254 by capela, Tue Sep 28 14:06:18 2004 UTC revision 946 by capela, Mon Nov 27 18:33:02 2006 UTC
# Line 2  Line 2 
2  //  //
3  /****************************************************************************  /****************************************************************************
4     liblscp - LinuxSampler Control Protocol API     liblscp - LinuxSampler Control Protocol API
5     Copyright (C) 2004, rncbc aka Rui Nuno Capela. All rights reserved.     Copyright (C) 2004-2006, rncbc aka Rui Nuno Capela. All rights reserved.
6    
7     This library is free software; you can redistribute it and/or     This library is free software; you can redistribute it and/or
8     modify it under the terms of the GNU Lesser General Public     modify it under the terms of the GNU Lesser General Public
# Line 14  Line 14 
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15     Lesser General Public License for more details.     Lesser General Public License for more details.
16    
17     You should have received a copy of the GNU Lesser General Public     You should have received a copy of the GNU General Public License along
18     License along with this library; if not, write to the Free Software     with this program; if not, write to the Free Software Foundation, Inc.,
19     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20    
21  *****************************************************************************/  *****************************************************************************/
22    
# Line 40  static lscp_status_t    _lscp_client_evt Line 40  static lscp_status_t    _lscp_client_evt
40  static void _lscp_client_evt_proc ( void *pvClient )  static void _lscp_client_evt_proc ( void *pvClient )
41  {  {
42      lscp_client_t *pClient = (lscp_client_t *) pvClient;      lscp_client_t *pClient = (lscp_client_t *) pvClient;
43        
44      fd_set fds;                         // File descriptor list for select().      fd_set fds;                         // File descriptor list for select().
45      int    fd, fdmax;                   // Maximum file descriptor number.      int    fd, fdmax;                   // Maximum file descriptor number.
46      struct timeval tv;                  // For specifying a timeout value.      struct timeval tv;                  // For specifying a timeout value.
47      int    iSelect;                     // Holds select return status.      int    iSelect;                     // Holds select return status.
48      int    iTimeout;      int    iTimeout;
49        
50      char   achBuffer[LSCP_BUFSIZ];      char   achBuffer[LSCP_BUFSIZ];
51      int    cchBuffer;      int    cchBuffer;
52      const char *pszSeps = ":\r\n";      const char *pszSeps = ":\r\n";
# Line 69  static void _lscp_client_evt_proc ( void Line 69  static void _lscp_client_evt_proc ( void
69    
70          // Use the timeout (x10) select feature ...          // Use the timeout (x10) select feature ...
71          iTimeout = 10 * pClient->iTimeout;          iTimeout = 10 * pClient->iTimeout;
72          if (iTimeout > 1000) {          if (iTimeout >= 1000) {
73              tv.tv_sec = iTimeout / 1000;              tv.tv_sec = iTimeout / 1000;
74              iTimeout -= tv.tv_sec * 1000;              iTimeout -= tv.tv_sec * 1000;
75          }          }
# Line 111  static void _lscp_client_evt_proc ( void Line 111  static void _lscp_client_evt_proc ( void
111              }              }
112          }   // Check if select has in error.          }   // Check if select has in error.
113          else if (iSelect < 0) {          else if (iSelect < 0) {
114              lscp_socket_perror("_lscp_client_call: select");              lscp_socket_perror("_lscp_client_evt_proc: select");
115              pClient->evt.iState = 0;              pClient->evt.iState = 0;
116          }          }
117            
118          // Finally, always signal the event.          // Finally, always signal the event.
119          lscp_cond_signal(pClient->cond);          lscp_cond_signal(pClient->cond);
120      }      }
# Line 164  static lscp_status_t _lscp_client_evt_co Line 164  static lscp_status_t _lscp_client_evt_co
164          closesocket(sock);          closesocket(sock);
165          return LSCP_FAILED;          return LSCP_FAILED;
166      }      }
167        
168      // Set our socket agent struct...      // Set our socket agent struct...
169      lscp_socket_agent_init(&(pClient->evt), sock, &addr, cAddr);      lscp_socket_agent_init(&(pClient->evt), sock, &addr, cAddr);
170        
171      // And finally the service thread...      // And finally the service thread...
172      return lscp_socket_agent_start(&(pClient->evt), _lscp_client_evt_proc, pClient, 0);      return lscp_socket_agent_start(&(pClient->evt), _lscp_client_evt_proc, pClient, 0);
173  }  }
# Line 198  static lscp_status_t _lscp_client_evt_re Line 198  static lscp_status_t _lscp_client_evt_re
198    
199      // Wait on response.      // Wait on response.
200      lscp_cond_wait(pClient->cond, pClient->mutex);      lscp_cond_wait(pClient->cond, pClient->mutex);
201        
202      // Update as naively as we can...      // Update as naively as we can...
203      if (iSubscribe)      if (iSubscribe)
204          pClient->events |=  event;          pClient->events |=  event;
# Line 337  lscp_client_t* lscp_client_create ( cons Line 337  lscp_client_t* lscp_client_create ( cons
337      lscp_device_port_info_init(&(pClient->midi_port_info));      lscp_device_port_info_init(&(pClient->midi_port_info));
338      lscp_param_info_init(&(pClient->audio_channel_param_info));      lscp_param_info_init(&(pClient->audio_channel_param_info));
339      lscp_param_info_init(&(pClient->midi_port_param_info));      lscp_param_info_init(&(pClient->midi_port_param_info));
340        lscp_server_info_init(&(pClient->server_info));
341      lscp_engine_info_init(&(pClient->engine_info));      lscp_engine_info_init(&(pClient->engine_info));
342      lscp_channel_info_init(&(pClient->channel_info));      lscp_channel_info_init(&(pClient->channel_info));
343        lscp_midi_instrument_info_init(&(pClient->midi_instrument_info));
344      // Initialize error stuff.      // Initialize error stuff.
345      pClient->pszResult = NULL;      pClient->pszResult = NULL;
346      pClient->iErrno = -1;      pClient->iErrno = -1;
# Line 347  lscp_client_t* lscp_client_create ( cons Line 349  lscp_client_t* lscp_client_create ( cons
349      pClient->iStreamCount = 0;      pClient->iStreamCount = 0;
350      // Default timeout value.      // Default timeout value.
351      pClient->iTimeout = LSCP_TIMEOUT_MSECS;      pClient->iTimeout = LSCP_TIMEOUT_MSECS;
352            pClient->iTimeoutCount = 0;
353    
354      // Initialize the transaction mutex.      // Initialize the transaction mutex.
355      lscp_mutex_init(pClient->mutex);      lscp_mutex_init(pClient->mutex);
# Line 396  lscp_status_t lscp_client_destroy ( lscp Line 399  lscp_status_t lscp_client_destroy ( lscp
399    
400      // Lock this section up.      // Lock this section up.
401      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
402        
403      // Free up all cached members.      // Free up all cached members.
404        lscp_midi_instrument_info_free(&(pClient->midi_instrument_info));
405      lscp_channel_info_free(&(pClient->channel_info));      lscp_channel_info_free(&(pClient->channel_info));
406      lscp_engine_info_free(&(pClient->engine_info));      lscp_engine_info_free(&(pClient->engine_info));
407        lscp_server_info_free(&(pClient->server_info));
408      lscp_param_info_free(&(pClient->midi_port_param_info));      lscp_param_info_free(&(pClient->midi_port_param_info));
409      lscp_param_info_free(&(pClient->audio_channel_param_info));      lscp_param_info_free(&(pClient->audio_channel_param_info));
410      lscp_device_port_info_free(&(pClient->midi_port_info));      lscp_device_port_info_free(&(pClient->midi_port_info));
# Line 500  int lscp_client_get_timeout ( lscp_clien Line 505  int lscp_client_get_timeout ( lscp_clien
505  lscp_status_t lscp_client_query ( lscp_client_t *pClient, const char *pszQuery )  lscp_status_t lscp_client_query ( lscp_client_t *pClient, const char *pszQuery )
506  {  {
507      lscp_status_t ret;      lscp_status_t ret;
508        
509      // Lock this section up.      // Lock this section up.
510      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
511    
512      // Just make the now guarded call.      // Just make the now guarded call.
513      ret = lscp_client_call(pClient, pszQuery);      ret = lscp_client_call(pClient, pszQuery);
514        
515      // Unlock this section down.      // Unlock this section down.
516      lscp_mutex_unlock(pClient->mutex);      lscp_mutex_unlock(pClient->mutex);
517        
518      return ret;      return ret;
519  }  }
520    
# Line 553  int lscp_client_get_errno ( lscp_client_ Line 558  int lscp_client_get_errno ( lscp_client_
558    
559  /**  /**
560   *  Register frontend for receiving event messages:   *  Register frontend for receiving event messages:
561   *  SUBSCRIBE CHANNELS | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL   *  SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL
562   *      | CHANNEL_INFO | MISCELLANEOUS   *      | CHANNEL_INFO | MISCELLANEOUS
563   *   *
564   *  @param pClient  Pointer to client instance structure.   *  @param pClient  Pointer to client instance structure.
# Line 574  lscp_status_t lscp_client_subscribe ( ls Line 579  lscp_status_t lscp_client_subscribe ( ls
579      // If applicable, start the alternate connection...      // If applicable, start the alternate connection...
580      if (pClient->events == LSCP_EVENT_NONE)      if (pClient->events == LSCP_EVENT_NONE)
581          ret = _lscp_client_evt_connect(pClient);          ret = _lscp_client_evt_connect(pClient);
582        
583      // Send the subscription commands.      // Send the subscription commands.
584      if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNELS))      if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT))
585          ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNELS);          ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_CHANNEL_COUNT);
586      if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT))      if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT))
587          ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_VOICE_COUNT);          ret = _lscp_client_evt_request(pClient, 1, LSCP_EVENT_VOICE_COUNT);
588      if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT))      if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT))
# Line 598  lscp_status_t lscp_client_subscribe ( ls Line 603  lscp_status_t lscp_client_subscribe ( ls
603    
604  /**  /**
605   *  Deregister frontend from receiving UDP event messages anymore:   *  Deregister frontend from receiving UDP event messages anymore:
606   *  SUBSCRIBE CHANNELS | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL   *  SUBSCRIBE CHANNEL_COUNT | VOICE_COUNT | STREAM_COUNT | BUFFER_FILL
607   *      | CHANNEL_INFO | MISCELLANEOUS   *      | CHANNEL_INFO | MISCELLANEOUS
608   *   *
609   *  @param pClient  Pointer to client instance structure.   *  @param pClient  Pointer to client instance structure.
# Line 617  lscp_status_t lscp_client_unsubscribe ( Line 622  lscp_status_t lscp_client_unsubscribe (
622      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
623    
624      // Send the unsubscription commands.      // Send the unsubscription commands.
625      if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNELS))      if (ret == LSCP_OK && (events & LSCP_EVENT_CHANNEL_COUNT))
626          ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNELS);          ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_CHANNEL_COUNT);
627      if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT))      if (ret == LSCP_OK && (events & LSCP_EVENT_VOICE_COUNT))
628          ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_VOICE_COUNT);          ret = _lscp_client_evt_request(pClient, 0, LSCP_EVENT_VOICE_COUNT);
629      if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT))      if (ret == LSCP_OK && (events & LSCP_EVENT_STREAM_COUNT))
# Line 769  int *lscp_list_channels ( lscp_client_t Line 774  int *lscp_list_channels ( lscp_client_t
774    
775      if (pClient == NULL)      if (pClient == NULL)
776          return NULL;          return NULL;
777            
778      // Lock this section up.      // Lock this section up.
779      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
780    
# Line 806  int lscp_add_channel ( lscp_client_t *pC Line 811  int lscp_add_channel ( lscp_client_t *pC
811    
812      if (lscp_client_call(pClient, "ADD CHANNEL\r\n") == LSCP_OK)      if (lscp_client_call(pClient, "ADD CHANNEL\r\n") == LSCP_OK)
813          iSamplerChannel = atoi(lscp_client_get_result(pClient));          iSamplerChannel = atoi(lscp_client_get_result(pClient));
814            
815      // Unlock this section down.      // Unlock this section down.
816      lscp_mutex_unlock(pClient->mutex);      lscp_mutex_unlock(pClient->mutex);
817    
# Line 836  lscp_status_t lscp_remove_channel ( lscp Line 841  lscp_status_t lscp_remove_channel ( lscp
841    
842    
843  /**  /**
844   *  Getting all available engines:   *  Getting all available engines count:
845   *  GET AVAILABLE_ENGINES   *  GET AVAILABLE_ENGINES
846   *   *
847   *  @param pClient  Pointer to client instance structure.   *  @param pClient  Pointer to client instance structure.
848   *   *
849     *  @returns The current total number of sampler engines on success,
850     *  -1 otherwise.
851     */
852    int lscp_get_available_engines ( lscp_client_t *pClient )
853    {
854        int iAvailableEngines = -1;
855    
856        // Lock this section up.
857        lscp_mutex_lock(pClient->mutex);
858    
859        if (lscp_client_call(pClient, "GET AVAILABLE_ENGINES\r\n") == LSCP_OK)
860            iAvailableEngines = atoi(lscp_client_get_result(pClient));
861    
862        // Unlock this section down.
863        lscp_mutex_unlock(pClient->mutex);
864    
865        return iAvailableEngines;
866    }
867    
868    
869    /**
870     *  Getting all available engines:
871     *  LIST AVAILABLE_ENGINES
872     *
873     *  @param pClient  Pointer to client instance structure.
874     *
875   *  @returns A NULL terminated array of engine name strings,   *  @returns A NULL terminated array of engine name strings,
876   *  or NULL in case of failure.   *  or NULL in case of failure.
877   */   */
878  const char **lscp_get_available_engines ( lscp_client_t *pClient )  const char **lscp_list_available_engines ( lscp_client_t *pClient )
879  {  {
880      const char *pszSeps = ",";      const char *pszSeps = ",";
881    
# Line 856  const char **lscp_get_available_engines Line 887  const char **lscp_get_available_engines
887          pClient->engines = NULL;          pClient->engines = NULL;
888      }      }
889    
890      if (lscp_client_call(pClient, "GET AVAILABLE_ENGINES\r\n") == LSCP_OK)      if (lscp_client_call(pClient, "LIST AVAILABLE_ENGINES\r\n") == LSCP_OK)
891          pClient->engines = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps);          pClient->engines = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps);
892    
893      // Unlock this section down.      // Unlock this section down.
# Line 914  lscp_engine_info_t *lscp_get_engine_info Line 945  lscp_engine_info_t *lscp_get_engine_info
945          }          }
946      }      }
947      else pEngineInfo = NULL;      else pEngineInfo = NULL;
948        
949      // Unlock this section down.      // Unlock this section down.
950      lscp_mutex_unlock(pClient->mutex);      lscp_mutex_unlock(pClient->mutex);
951    
# Line 947  lscp_channel_info_t *lscp_get_channel_in Line 978  lscp_channel_info_t *lscp_get_channel_in
978    
979      // Lock this section up.      // Lock this section up.
980      lscp_mutex_lock(pClient->mutex);      lscp_mutex_lock(pClient->mutex);
981        
982      pChannelInfo = &(pClient->channel_info);      pChannelInfo = &(pClient->channel_info);
983      lscp_channel_info_reset(pChannelInfo);      lscp_channel_info_reset(pChannelInfo);
984    
# Line 989  lscp_channel_info_t *lscp_get_channel_in Line 1020  lscp_channel_info_t *lscp_get_channel_in
1020                  if (pszToken)                  if (pszToken)
1021                      pChannelInfo->instrument_nr = atoi(lscp_ltrim(pszToken));                      pChannelInfo->instrument_nr = atoi(lscp_ltrim(pszToken));
1022              }              }
1023                else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) {
1024                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1025                    if (pszToken)
1026                        lscp_unquote_dup(&(pChannelInfo->instrument_name), &pszToken);
1027                }
1028              else if (strcasecmp(pszToken, "INSTRUMENT_STATUS") == 0) {              else if (strcasecmp(pszToken, "INSTRUMENT_STATUS") == 0) {
1029                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1030                  if (pszToken)                  if (pszToken)
# Line 1006  lscp_channel_info_t *lscp_get_channel_in Line 1042  lscp_channel_info_t *lscp_get_channel_in
1042              }              }
1043              else if (strcasecmp(pszToken, "MIDI_INPUT_CHANNEL") == 0) {              else if (strcasecmp(pszToken, "MIDI_INPUT_CHANNEL") == 0) {
1044                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1045                  if (pszToken)                  if (pszToken) {
1046                      pChannelInfo->midi_channel = atoi(lscp_ltrim(pszToken));                      pszToken = lscp_ltrim(pszToken);
1047                        if (strcasecmp(pszToken, "ALL") == 0)
1048                            pChannelInfo->midi_channel = LSCP_MIDI_CHANNEL_ALL;
1049                        else
1050                            pChannelInfo->midi_channel = atoi(pszToken);
1051                    }
1052              }              }
1053              else if (strcasecmp(pszToken, "VOLUME") == 0) {              else if (strcasecmp(pszToken, "VOLUME") == 0) {
1054                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));                  pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1055                  if (pszToken)                  if (pszToken)
1056                      pChannelInfo->volume = (float) atof(lscp_ltrim(pszToken));                      pChannelInfo->volume = (float) atof(lscp_ltrim(pszToken));
1057              }              }
1058                else if (strcasecmp(pszToken, "MUTE") == 0) {
1059                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1060                    if (pszToken)
1061                        pChannelInfo->mute = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0);
1062                }
1063                else if (strcasecmp(pszToken, "SOLO") == 0) {
1064                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1065                    if (pszToken)
1066                        pChannelInfo->solo = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0);
1067                }
1068              pszToken = lscp_strtok(NULL, pszSeps, &(pch));              pszToken = lscp_strtok(NULL, pszSeps, &(pch));
1069          }          }
1070      }      }
1071      else pChannelInfo = NULL;      else pChannelInfo = NULL;
1072        
1073      // Unlock this section up.      // Unlock this section up.
1074      lscp_mutex_unlock(pClient->mutex);      lscp_mutex_unlock(pClient->mutex);
1075    
# Line 1211  lscp_buffer_fill_t *lscp_get_channel_buf Line 1262  lscp_buffer_fill_t *lscp_get_channel_buf
1262          else while (iStream < pClient->iStreamCount)          else while (iStream < pClient->iStreamCount)
1263              pBufferFill[iStream++].stream_usage = 0;              pBufferFill[iStream++].stream_usage = 0;
1264      }      }
1265        
1266      // Unlock this section down.      // Unlock this section down.
1267      lscp_mutex_unlock(pClient->mutex);      lscp_mutex_unlock(pClient->mutex);
1268    
# Line 1226  lscp_buffer_fill_t *lscp_get_channel_buf Line 1277  lscp_buffer_fill_t *lscp_get_channel_buf
1277   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1278   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1279   *  @param pszAudioDriver   Audio output driver type (e.g. "ALSA" or "JACK").   *  @param pszAudioDriver   Audio output driver type (e.g. "ALSA" or "JACK").
1280     *
1281     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1282   */   */
1283  lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver )  lscp_status_t lscp_set_channel_audio_type ( lscp_client_t *pClient, int iSamplerChannel, const char *pszAudioDriver )
1284  {  {
# Line 1246  lscp_status_t lscp_set_channel_audio_typ Line 1299  lscp_status_t lscp_set_channel_audio_typ
1299   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1300   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1301   *  @param iAudioDevice     Audio output device number identifier.   *  @param iAudioDevice     Audio output device number identifier.
1302     *
1303     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1304   */   */
1305  lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice )  lscp_status_t lscp_set_channel_audio_device ( lscp_client_t *pClient, int iSamplerChannel, int iAudioDevice )
1306  {  {
# Line 1311  lscp_status_t lscp_set_channel_midi_type Line 1366  lscp_status_t lscp_set_channel_midi_type
1366   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1367   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1368   *  @param iMidiDevice      MIDI input device number identifier.   *  @param iMidiDevice      MIDI input device number identifier.
1369     *
1370     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1371   */   */
1372  lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice )  lscp_status_t lscp_set_channel_midi_device ( lscp_client_t *pClient, int iSamplerChannel, int iMidiDevice )
1373  {  {
# Line 1352  lscp_status_t lscp_set_channel_midi_port Line 1409  lscp_status_t lscp_set_channel_midi_port
1409   *   *
1410   *  @param pClient          Pointer to client instance structure.   *  @param pClient          Pointer to client instance structure.
1411   *  @param iSamplerChannel  Sampler channel number.   *  @param iSamplerChannel  Sampler channel number.
1412   *  @param iMidiChannel     MIDI channel number to listen (1-16) or   *  @param iMidiChannel     MIDI channel address number to listen (0-15) or
1413   *                          LSCP_MIDI_CHANNEL_ALL (0) to listen on all channels.   *                          LSCP_MIDI_CHANNEL_ALL (16) to listen on all channels.
1414   *   *
1415   *  @returns LSCP_OK on success, LSCP_FAILED otherwise.   *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1416   */   */
# Line 1364  lscp_status_t lscp_set_channel_midi_chan Line 1421  lscp_status_t lscp_set_channel_midi_chan
1421      if (iSamplerChannel < 0 || iMidiChannel < 0 || iMidiChannel > 16)      if (iSamplerChannel < 0 || iMidiChannel < 0 || iMidiChannel > 16)
1422          return LSCP_FAILED;          return LSCP_FAILED;
1423    
1424      if (iMidiChannel > 0)      if (iMidiChannel == LSCP_MIDI_CHANNEL_ALL)
         sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d %d\r\n", iSamplerChannel, iMidiChannel);  
     else  
1425          sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d ALL\r\n", iSamplerChannel);          sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d ALL\r\n", iSamplerChannel);
1426        else
1427            sprintf(szQuery, "SET CHANNEL MIDI_INPUT_CHANNEL %d %d\r\n", iSamplerChannel, iMidiChannel);
1428      return lscp_client_query(pClient, szQuery);      return lscp_client_query(pClient, szQuery);
1429  }  }
1430    
# Line 1397  lscp_status_t lscp_set_channel_volume ( Line 1454  lscp_status_t lscp_set_channel_volume (
1454    
1455    
1456  /**  /**
1457     *  Muting a sampler channel:
1458     *  SET CHANNEL MUTE <sampler-channel> <mute>
1459     *
1460     *  @param pClient          Pointer to client instance structure.
1461     *  @param iSamplerChannel  Sampler channel number.
1462     *  @param iMute            Sampler channel mute state as a boolean value,
1463     *                          either 1 (one) to mute the channel or 0 (zero)
1464     *                          to unmute the channel.
1465     *
1466     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1467     */
1468    lscp_status_t lscp_set_channel_mute ( lscp_client_t *pClient, int iSamplerChannel, int iMute )
1469    {
1470        char szQuery[LSCP_BUFSIZ];
1471    
1472        if (iSamplerChannel < 0 || iMute < 0 || iMute > 1)
1473            return LSCP_FAILED;
1474    
1475        sprintf(szQuery, "SET CHANNEL MUTE %d %d\r\n", iSamplerChannel, iMute);
1476        return lscp_client_query(pClient, szQuery);
1477    }
1478    
1479    
1480    /**
1481     *  Soloing a sampler channel:
1482     *  SET CHANNEL SOLO <sampler-channel> <solo>
1483     *
1484     *  @param pClient          Pointer to client instance structure.
1485     *  @param iSamplerChannel  Sampler channel number.
1486     *  @param iSolo            Sampler channel solo state as a boolean value,
1487     *                          either 1 (one) to solo the channel or 0 (zero)
1488     *                          to unsolo the channel.
1489     *
1490     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1491     */
1492    lscp_status_t lscp_set_channel_solo ( lscp_client_t *pClient, int iSamplerChannel, int iSolo )
1493    {
1494        char szQuery[LSCP_BUFSIZ];
1495    
1496        if (iSamplerChannel < 0 || iSolo < 0 || iSolo > 1)
1497            return LSCP_FAILED;
1498    
1499        sprintf(szQuery, "SET CHANNEL SOLO %d %d\r\n", iSamplerChannel, iSolo);
1500        return lscp_client_query(pClient, szQuery);
1501    }
1502    
1503    
1504    /**
1505   *  Resetting a sampler channel:   *  Resetting a sampler channel:
1506   *  RESET CHANNEL <sampler-channel>   *  RESET CHANNEL <sampler-channel>
1507   *   *
# Line 1431  lscp_status_t lscp_reset_sampler ( lscp_ Line 1536  lscp_status_t lscp_reset_sampler ( lscp_
1536  }  }
1537    
1538    
1539    /**
1540     *  Getting information about the server.
1541     *  GET SERVER INFO
1542     *
1543     *  @param pClient  Pointer to client instance structure.
1544     *
1545     *  @returns A pointer to a @ref lscp_server_info_t structure, with all the
1546     *  information of the current connected server, or NULL in case of failure.
1547     */
1548    lscp_server_info_t *lscp_get_server_info ( lscp_client_t *pClient )
1549    {
1550        lscp_server_info_t *pServerInfo;
1551        const char *pszResult;
1552        const char *pszSeps = ":";
1553        const char *pszCrlf = "\r\n";
1554        char *pszToken;
1555        char *pch;
1556    
1557        // Lock this section up.
1558        lscp_mutex_lock(pClient->mutex);
1559    
1560        pServerInfo = &(pClient->server_info);
1561        lscp_server_info_reset(pServerInfo);
1562    
1563        if (lscp_client_call(pClient, "GET SERVER INFO\r\n") == LSCP_OK) {
1564            pszResult = lscp_client_get_result(pClient);
1565            pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch));
1566            while (pszToken) {
1567                if (strcasecmp(pszToken, "DESCRIPTION") == 0) {
1568                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1569                    if (pszToken)
1570                        lscp_unquote_dup(&(pServerInfo->description), &pszToken);
1571                }
1572                else if (strcasecmp(pszToken, "VERSION") == 0) {
1573                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1574                    if (pszToken)
1575                        lscp_unquote_dup(&(pServerInfo->version), &pszToken);
1576                }
1577                pszToken = lscp_strtok(NULL, pszSeps, &(pch));
1578            }
1579        }
1580        else pServerInfo = NULL;
1581    
1582        // Unlock this section down.
1583        lscp_mutex_unlock(pClient->mutex);
1584    
1585        return pServerInfo;
1586    }
1587    
1588    
1589    /**
1590     *  Current total number of active voices:
1591     *  GET TOTAL_VOICE_COUNT
1592     *
1593     *  @param pClient  Pointer to client instance structure.
1594     *
1595     *  @returns The total number of voices currently active,
1596     *  -1 in case of failure.
1597     */
1598    int lscp_get_total_voice_count ( lscp_client_t *pClient )
1599    {
1600        int iVoiceCount = -1;
1601    
1602        // Lock this section up.
1603        lscp_mutex_lock(pClient->mutex);
1604    
1605        if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT\r\n") == LSCP_OK)
1606            iVoiceCount = atoi(lscp_client_get_result(pClient));
1607    
1608        // Unlock this section down.
1609        lscp_mutex_unlock(pClient->mutex);
1610    
1611        return iVoiceCount;
1612    }
1613    
1614    
1615    /**
1616     *  Maximum amount of active voices:
1617     *  GET TOTAL_VOICE_COUNT_MAX
1618     *
1619     *  @param pClient  Pointer to client instance structure.
1620     *
1621     *  @returns The maximum amount of voices currently active,
1622     *  -1 in case of failure.
1623     */
1624    int lscp_get_total_voice_count_max ( lscp_client_t *pClient )
1625    {
1626        int iVoiceCount = -1;
1627    
1628        // Lock this section up.
1629        lscp_mutex_lock(pClient->mutex);
1630    
1631        if (lscp_client_call(pClient, "GET TOTAL_VOICE_COUNT_MAX\r\n") == LSCP_OK)
1632            iVoiceCount = atoi(lscp_client_get_result(pClient));
1633    
1634        // Unlock this section down.
1635        lscp_mutex_unlock(pClient->mutex);
1636    
1637        return iVoiceCount;
1638    }
1639    
1640    
1641    /**
1642     *  Create or replace a MIDI instrumnet map entry:
1643     *  MAP MIDI_INSTRUMENT <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1644     *      <engine-name> <filename> <instr-index> <volume> <load-mode> [<name>]
1645     *
1646     *  @param pClient          Pointer to client instance structure.
1647     *  @param pMidiInstr       MIDI instrument bank and program parameter key.
1648     *  @param pszEngineName    Engine name.
1649     *  @param pszFileName      Instrument file name.
1650     *  @param iInstrIndex      Instrument index number.
1651     *  @param fVolume          Reflects the master volume of the instrument as
1652     *                          a positive floating point number, where a value
1653     *                          less than 1.0 for attenuation, and greater than
1654     *                          1.0 for amplification.
1655     *  @param load_mode        Instrument load life-time strategy, either
1656     *                          @ref LSCP_LOAD_DEFAULT, or
1657     *                          @ref LSCP_LOAD_ON_DEMAND, or
1658     *                          @ref LSCP_LOAD_ON_DEMAND_HOLD, or
1659     *                          @ref LSCP_LOAD_PERSISTENT.
1660     *  @param pszName          Instrument custom name for the map entry.
1661     *
1662     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1663     */
1664    lscp_status_t lscp_map_midi_instrument ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr, const char *pszEngineName, const char *pszFileName, int iInstrIndex, float fVolume, lscp_load_mode_t load_mode, const char *pszName )
1665    {
1666        char szQuery[LSCP_BUFSIZ];
1667    
1668        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1669            return LSCP_FAILED;
1670        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1671            return LSCP_FAILED;
1672        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1673            return LSCP_FAILED;
1674        if (pszEngineName == NULL || pszFileName == NULL)
1675            return LSCP_FAILED;
1676    
1677            if (fVolume < 0.0f)
1678                    fVolume = 1.0f;
1679    
1680        sprintf(szQuery, "MAP MIDI_INSTRUMENT %d %d %d %s '%s' %d %g",
1681                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program,
1682                    pszEngineName, pszFileName, iInstrIndex, fVolume);
1683    
1684            switch (load_mode) {
1685            case LSCP_LOAD_PERSISTENT:
1686                    strcat(szQuery, " PERSISTENT");
1687                    break;
1688            case LSCP_LOAD_ON_DEMAND_HOLD:
1689                    strcat(szQuery, " ON_DEMAND_HOLD");
1690                    break;
1691            case LSCP_LOAD_ON_DEMAND:
1692                    strcat(szQuery, " ON_DEMAND_HOLD");
1693                    break;
1694            case LSCP_LOAD_DEFAULT:
1695            default:
1696                    break;
1697            }
1698    
1699            if (pszName)
1700                    sprintf(szQuery + strlen(szQuery), " '%s'", pszName);
1701    
1702            strcat(szQuery, "\r\n");
1703    
1704        return lscp_client_query(pClient, szQuery);
1705    }
1706    
1707    
1708    /**
1709     *  Remove an entry from the MIDI instrument map:
1710     *  UNMAP MIDI_INSTRUMENT <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1711     *
1712     *  @param pClient      Pointer to client instance structure.
1713     *  @param pMidiInstr   MIDI instrument bank and program parameter key.
1714     *
1715     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1716     */
1717    lscp_status_t lscp_unmap_midi_instrument ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr )
1718    {
1719        char szQuery[LSCP_BUFSIZ];
1720    
1721        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1722            return LSCP_FAILED;
1723        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1724            return LSCP_FAILED;
1725        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1726            return LSCP_FAILED;
1727    
1728        sprintf(szQuery, "UNMAP MIDI_INSTRUMENT %d %d %d\r\n",
1729                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program);
1730    
1731        return lscp_client_query(pClient, szQuery);
1732    }
1733    
1734    
1735    /**
1736     *  Get the total count of MIDI instrument map entries:
1737     *  GET MIDI_INSTRUMENTS
1738     *
1739     *  @param pClient  Pointer to client instance structure.
1740     *
1741     *  @returns The current total number of MIDI instrument map entries
1742     *  on success, -1 otherwise.
1743     */
1744    int lscp_get_midi_instruments ( lscp_client_t *pClient )
1745    {
1746        int iInstruments = -1;
1747    
1748        // Lock this section up.
1749        lscp_mutex_lock(pClient->mutex);
1750    
1751        if (lscp_client_call(pClient, "GET MIDI_INSTRUMENTS\r\n") == LSCP_OK)
1752            iInstruments = atoi(lscp_client_get_result(pClient));
1753    
1754        // Unlock this section down.
1755        lscp_mutex_unlock(pClient->mutex);
1756    
1757        return iInstruments;
1758    }
1759    
1760    
1761    /**
1762     *  Getting information about a MIDI instrument map entry:
1763     *  GET MIDI_INSTRUMENT INFO <midi-bank-msb> <midi-bank-lsb> <midi-prog>
1764     *
1765     *  @param pClient      Pointer to client instance structure.
1766     *  @param pMidiInstr   MIDI instrument bank and program parameter key.
1767     *
1768     *  @returns A pointer to a @ref lscp_midi_instrument_info_t structure,
1769     *  with all the information of the given MIDI instrument map entry,
1770     *  or NULL in case of failure.
1771     */
1772    lscp_midi_instrument_info_t *lscp_get_midi_instrument_info ( lscp_client_t *pClient, lscp_midi_instrument_t *pMidiInstr )
1773    {
1774        lscp_midi_instrument_info_t *pInstrInfo;
1775        char szQuery[LSCP_BUFSIZ];
1776        const char *pszResult;
1777        const char *pszSeps = ":";
1778        const char *pszCrlf = "\r\n";
1779        char *pszToken;
1780        char *pch;
1781    
1782        if (pMidiInstr->bank_msb < 0 || pMidiInstr->bank_msb > 127)
1783            return NULL;
1784        if (pMidiInstr->bank_lsb < 0 || pMidiInstr->bank_lsb > 127)
1785            return NULL;
1786        if (pMidiInstr->program < 0 || pMidiInstr->program > 127)
1787            return NULL;
1788    
1789        // Lock this section up.
1790        lscp_mutex_lock(pClient->mutex);
1791    
1792        pInstrInfo = &(pClient->midi_instrument_info);
1793        lscp_midi_instrument_info_reset(pInstrInfo);
1794    
1795        sprintf(szQuery, "GET MIDI_INSTRUMENT INFO %d %d %d\r\n",
1796                    pMidiInstr->bank_msb, pMidiInstr->bank_lsb, pMidiInstr->program);
1797        if (lscp_client_call(pClient, szQuery) == LSCP_OK) {
1798            pszResult = lscp_client_get_result(pClient);
1799            pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch));
1800            while (pszToken) {
1801                if (strcasecmp(pszToken, "NAME") == 0) {
1802                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1803                    if (pszToken)
1804                        lscp_unquote_dup(&(pInstrInfo->name), &pszToken);
1805                }
1806                else if (strcasecmp(pszToken, "ENGINE_NAME") == 0) {
1807                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1808                    if (pszToken)
1809                        lscp_unquote_dup(&(pInstrInfo->engine_name), &pszToken);
1810                }
1811                else if (strcasecmp(pszToken, "INSTRUMENT_FILE") == 0) {
1812                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1813                    if (pszToken)
1814                        lscp_unquote_dup(&(pInstrInfo->instrument_file), &pszToken);
1815                }
1816                else if (strcasecmp(pszToken, "INSTRUMENT_NR") == 0) {
1817                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1818                    if (pszToken)
1819                        pInstrInfo->instrument_nr = atoi(lscp_ltrim(pszToken));
1820                }
1821                else if (strcasecmp(pszToken, "INSTRUMENT_NAME") == 0) {
1822                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1823                    if (pszToken)
1824                        lscp_unquote_dup(&(pInstrInfo->instrument_name), &pszToken);
1825                }
1826                else if (strcasecmp(pszToken, "LOAD_MODE") == 0) {
1827                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1828                    if (pszToken) {
1829                        pszToken = lscp_ltrim(pszToken);
1830                        if (strcasecmp(pszToken, "ON_DEMAND") == 0)
1831                            pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND;
1832                        else
1833                        if (strcasecmp(pszToken, "ON_DEMAND_HOLD") == 0)
1834                            pInstrInfo->load_mode = LSCP_LOAD_ON_DEMAND_HOLD;
1835                        else
1836                        if (strcasecmp(pszToken, "PERSISTENT") == 0)
1837                            pInstrInfo->load_mode = LSCP_LOAD_PERSISTENT;
1838                        else
1839                            pInstrInfo->load_mode = LSCP_LOAD_DEFAULT;
1840                    }
1841                }
1842                else if (strcasecmp(pszToken, "VOLUME") == 0) {
1843                    pszToken = lscp_strtok(NULL, pszCrlf, &(pch));
1844                    if (pszToken)
1845                        pInstrInfo->volume = (float) atof(lscp_ltrim(pszToken));
1846                }
1847                pszToken = lscp_strtok(NULL, pszSeps, &(pch));
1848                    }
1849        }
1850        else pInstrInfo = NULL;
1851    
1852        // Unlock this section down.
1853        lscp_mutex_unlock(pClient->mutex);
1854    
1855        return pInstrInfo;
1856    }
1857    
1858    
1859    /**
1860     *  Clear the MIDI instrumnet map:
1861     *  CLEAR MIDI_INSTRUMENTS
1862     *
1863     *  @param pClient          Pointer to client instance structure.
1864     *  @param iSamplerChannel  Sampler channel number.
1865     *
1866     *  @returns LSCP_OK on success, LSCP_FAILED otherwise.
1867     */
1868    lscp_status_t lscp_clear_midi_instruments  ( lscp_client_t *pClient )
1869    {
1870        return lscp_client_query(pClient, "CLEAR MIDI_INSTRUMENTS\r\n");
1871    }
1872    
1873    
1874  // end of client.c  // end of client.c
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