/[svn]/linuxsampler/trunk/src/linuxsampler.cpp
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Diff of /linuxsampler/trunk/src/linuxsampler.cpp

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revision 31 by schoenebeck, Sun Jan 18 20:31:31 2004 UTC revision 361 by schoenebeck, Wed Feb 9 01:22:18 2005 UTC
# Line 2  Line 2 
2   *                                                                         *   *                                                                         *
3   *   LinuxSampler - modular, streaming capable sampler                     *   *   LinuxSampler - modular, streaming capable sampler                     *
4   *                                                                         *   *                                                                         *
5   *   Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck         *   *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
6   *                                                                         *   *                                                                         *
7   *   This program is free software; you can redistribute it and/or modify  *   *   This program is free software; you can redistribute it and/or modify  *
8   *   it under the terms of the GNU General Public License as published by  *   *   it under the terms of the GNU General Public License as published by  *
# Line 20  Line 20 
20   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
21   ***************************************************************************/   ***************************************************************************/
22    
 #include <stdio.h>  
 #include <stdlib.h>  
 #include <unistd.h>  
23  #include <getopt.h>  #include <getopt.h>
24  #include <signal.h>  #include <signal.h>
 #include <pthread.h>  
25    
26  #include <string>  #include "Sampler.h"
27    #include "drivers/midi/MidiInputDeviceFactory.h"
28  #include "global.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
29  #include "diskthread.h"  #include "engines/gig/Profiler.h"
30  #include "audiothread.h"  #include "network/lscpserver.h"
31  #include "alsaio.h"  #include "common/stacktrace.h"
32  #include "jackio.h"  #include "common/Features.h"
33  #include "midiin.h"  
34  #include "stream.h"  using namespace LinuxSampler;
35  #include "RIFF.h"  
36  #include "gig.h"  Sampler*    pSampler    = NULL;
37    LSCPServer* pLSCPServer = NULL;
38  #define AUDIO_CHANNELS          2     // stereo  pthread_t   main_thread;
39  #define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2  bool profile = false;
40  #define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames  bool tune = true;
 #define AUDIO_SAMPLERATE        44100 // Hz  
   
 enum patch_format_t {  
     patch_format_unknown,  
     patch_format_gig,  
     patch_format_dls  
 } patch_format;  
   
 AudioIO*         pAudioIO;  
 DiskThread*      pDiskThread;  
 AudioThread*     pAudioThread;  
 MidiIn*          pMidiInThread;  
 RIFF::File*      pRIFF;  
 gig::File*       pGig;  
 gig::Instrument* pInstrument;  
 uint             instrument_index;  
 double           volume;  
 int              num_fragments;  
 int              fragmentsize;  
 std::string      input_client;  
 pthread_t        signalhandlerthread;  
41    
42  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
43  void signal_handler(int signal);  void signal_handler(int signal);
44    void kill_app();
45    
46  int main(int argc, char **argv) {  int main(int argc, char **argv) {
47      pAudioIO = NULL;  
48      pRIFF    = NULL;      // initialize the stack trace mechanism with our binary file
49      pGig     = NULL;      StackTraceInit(argv[0], -1);
50    
51        main_thread = pthread_self();
52    
53      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)      // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
     signalhandlerthread = pthread_self();  
54      signal(SIGINT, signal_handler);      signal(SIGINT, signal_handler);
55    
56      patch_format      = patch_format_unknown;      // register signal handler for all unusual signals
57      instrument_index  = 0;      // (we will print the stack trace and exit)
58      num_fragments     = AUDIO_FRAGMENTS;      struct sigaction sact;
59      fragmentsize      = AUDIO_FRAGMENTSIZE;      sigemptyset(&sact.sa_mask);
60      volume            = 0.25; // default volume      sact.sa_flags   = 0;
61        sact.sa_handler = signal_handler;
62        sigaction(SIGSEGV, &sact, NULL);
63        sigaction(SIGBUS,  &sact, NULL);
64        sigaction(SIGILL,  &sact, NULL);
65        sigaction(SIGFPE,  &sact, NULL);
66        sigaction(SIGUSR1, &sact, NULL);
67        sigaction(SIGUSR2, &sact, NULL);
68    
69      // parse and assign command line options      // parse and assign command line options
70      parse_options(argc, argv);      parse_options(argc, argv);
71    
72      if (patch_format != patch_format_gig) {      dmsg(1,("LinuxSampler %s\n", VERSION));
73          printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");      dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));
         printf("Use 'linuxsampler --help' to see all available options.\n");  
         return EXIT_FAILURE;  
     }  
74    
75  #if HAVE_JACK      if (tune)
76      dmsg(1,("Initializing audio output (Jack)..."));      {
77      pAudioIO = new JackIO();              // detect and print system / CPU specific features
78      int error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS);              String sFeatures;
79      if (error) {              Features::detect();
80          dmsg(1,("Trying Alsa output instead.\n"));  #if ARCH_X86
81          dmsg(1,("Initializing audio output (Alsa)..."));              if (Features::supportsMMX()) sFeatures += " MMX";
82          pAudioIO = new AlsaIO();              if (Features::supportsSSE()) sFeatures += " SSE";
83          int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);  #endif // ARCH_X86
84          if (error) return EXIT_FAILURE;              if (!sFeatures.size()) sFeatures = " None";
85      }              dmsg(1,("Detected features:%s\n",sFeatures.c_str()));
86      dmsg(1,("OK\n"));      }
87  #else // Alsa only  
88      dmsg(1,("Initializing audio output (Alsa)..."));      // create LinuxSampler instance
89      pAudioIO = new AlsaIO();      dmsg(1,("Creating Sampler..."));
90      int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);      pSampler = new Sampler;
     if (error) return EXIT_FAILURE;  
91      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
 #endif // HAVE_JACK  
92    
93      // Loading gig file      dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
94      try {      dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
         printf("Loading gig file...");  
         fflush(stdout);  
         pRIFF       = new RIFF::File(argv[argc - 1]);  
         pGig        = new gig::File(pRIFF);  
         pInstrument = pGig->GetInstrument(instrument_index);  
         if (!pInstrument) {  
             printf("there's no instrument with index %d.\n", instrument_index);  
             exit(EXIT_FAILURE);  
         }  
         pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part  
         printf("OK\n");  
         fflush(stdout);  
     }  
     catch (RIFF::Exception e) {  
         e.PrintMessage();  
         return EXIT_FAILURE;  
     }  
     catch (...) {  
         printf("Unknown exception while trying to parse gig file.\n");  
         return EXIT_FAILURE;  
     }  
95    
96      DiskThread*  pDiskThread   = new DiskThread(((pAudioIO->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo      // start LSCP network server
97      AudioThread* pAudioThread  = new AudioThread(pAudioIO, pDiskThread, pInstrument);      dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
98      MidiIn*      pMidiInThread = new MidiIn(pAudioThread);      pLSCPServer = new LSCPServer(pSampler);
99        pLSCPServer->StartThread();
100      dmsg(1,("Starting disk thread..."));      pLSCPServer->WaitUntilInitialized();
     pDiskThread->StartThread();  
     dmsg(1,("OK\n"));  
     dmsg(1,("Starting MIDI in thread..."));  
     if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str());  
     pMidiInThread->StartThread();  
101      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
102    
103      sleep(1);      if (profile)
104      dmsg(1,("Starting audio thread..."));      {
105      pAudioThread->Volume = volume;              dmsg(1,("Calibrating profiler..."));
106      pAudioIO->AssignEngine(pAudioThread);              gig::Profiler::Calibrate();
107      pAudioIO->Activate();              gig::Profiler::Reset();
108      dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
109        }
110    
111      printf("LinuxSampler initialization completed.\n");      printf("LinuxSampler initialization completed.\n");
112    
113      while(true)  {      std::list<LSCPEvent::event_t> rtEvents;
114        printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",      rtEvents.push_back(LSCPEvent::event_voice_count);
115              pAudioThread->ActiveVoiceCount, pAudioThread->ActiveVoiceCountMax,      rtEvents.push_back(LSCPEvent::event_stream_count);
116              pDiskThread->ActiveStreamCount, pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());      rtEvents.push_back(LSCPEvent::event_buffer_fill);
117        fflush(stdout);  
118        usleep(500000);      while(true)
119        {
120          /*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
121                pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
122                pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
123          fflush(stdout);*/
124          sleep(1);
125          if (profile)
126          {
127                  unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
128                  unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
129                  if (bv != 0)
130                  {
131                          printf("       BogoVoices: %i         \r", bv);
132                          fflush(stdout);
133                  }
134          }
135          
136          if (LSCPServer::EventSubscribers(rtEvents))
137          {
138                  LSCPServer::LockRTNotify();
139                  std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
140                  std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
141                  for (; iter != channels.end(); iter++) {
142                          SamplerChannel* pSamplerChannel = iter->second;
143                          Engine* pEngine = pSamplerChannel->GetEngine();
144                          if (!pEngine) continue;
145                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));
146                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));
147                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));
148                  }
149                  LSCPServer::UnlockRTNotify();
150          }
151    
152      }      }
153    
154      return EXIT_SUCCESS;      return EXIT_SUCCESS;
155  }  }
156    
157  void signal_handler(int signal) {  void signal_handler(int iSignal) {
158      if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {      switch (iSignal) {
159          // stop all threads          case SIGINT: {
160          if (pAudioIO)      pAudioIO->Close();              if (pthread_equal(pthread_self(), main_thread)) {
161          if (pMidiInThread) pMidiInThread->StopThread();                  if (pLSCPServer) {
162          if (pDiskThread)   pDiskThread->StopThread();                      pLSCPServer->StopThread();
163                        delete pLSCPServer;
164          // free all resources                  }
165          if (pMidiInThread) delete pMidiInThread;                  if (pSampler) delete pSampler;
166          if (pAudioThread)  delete pAudioThread;                  printf("LinuxSampler stopped due to SIGINT.\n");
167          if (pDiskThread)   delete pDiskThread;                  exit(EXIT_SUCCESS);
168          if (pGig)          delete pGig;              }
169          if (pRIFF)         delete pRIFF;              return;
170          if (pAudioIO)      delete pAudioIO;          }
171            case SIGSEGV:
172          printf("LinuxSampler stopped due to SIGINT\n");              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
173          exit(EXIT_SUCCESS);              break;
174            case SIGBUS:
175                std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
176                break;
177            case SIGILL:
178                std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
179                break;
180            case SIGFPE:
181                std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
182                break;
183            case SIGUSR1:
184                std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
185                break;
186            case SIGUSR2:
187                std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
188                break;
189            default: { // this should never happen, as we register for the signals we want
190                std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
191                break;
192            }
193      }      }
194        signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
195        std::cerr << "Showing stack trace...\n" << std::flush;
196        StackTrace();
197        sleep(2);
198        std::cerr << "Killing LinuxSampler...\n" << std::flush;
199        kill_app(); // Use abort() if we want to generate a core dump.
200    }
201    
202    void kill_app() {
203        kill(main_thread, SIGKILL);
204  }  }
205    
206  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 192  void parse_options(int argc, char **argv Line 208  void parse_options(int argc, char **argv
208      int option_index = 0;      int option_index = 0;
209      static struct option long_options[] =      static struct option long_options[] =
210          {          {
             {"numfragments",1,0,0},  
             {"fragmentsize",1,0,0},  
             {"volume",1,0,0},  
             {"dls",0,0,0},  
             {"gig",0,0,0},  
             {"instrument",1,0,0},  
             {"inputclient",1,0,0},  
211              {"help",0,0,0},              {"help",0,0,0},
212                {"version",0,0,0},
213                {"profile",0,0,0},
214                {"no-tune",0,0,0},
215              {0,0,0,0}              {0,0,0,0}
216          };          };
217    
218      while (true) {      while (true) {
219          res = getopt_long_only(argc, argv, "", long_options, &option_index);          /*
220              Stephane Letz : letz@grame.fr
221              getopt_long_only does not exist on OSX : replaced by getopt_long for now.
222            */
223            res = getopt_long(argc, argv, "", long_options, &option_index);
224          if(res == -1) break;          if(res == -1) break;
225          if (res == 0) {          if (res == 0) {
226              switch(option_index) {              switch(option_index) {
227                  case 0:                  case 0: // --help
228                      num_fragments = atoi(optarg);                      printf("usage: linuxsampler [OPTIONS]\n\n");
229                      break;                      printf("--help             prints this message\n");
230                  case 1:                      printf("--version          prints version information\n");
231                      fragmentsize = atoi(optarg);                      printf("--profile          profile synthesis algorithms\n");
232                      break;                      printf("--no-tune          disable assembly optimization\n");
233                  case 2:                      exit(EXIT_SUCCESS);
234                      volume = atof(optarg);                      break;
235                      break;                  case 1: // --version
236                  case 3:                      printf("LinuxSampler %s\n", VERSION);
237                      patch_format = patch_format_dls;                      exit(EXIT_SUCCESS);
                     break;  
                 case 4:  
                     patch_format = patch_format_gig;  
                     break;  
                 case 5:  
                     instrument_index = atoi(optarg);  
238                      break;                      break;
239                  case 6:                  case 2: // --profile
240                      input_client = optarg;                      profile = true;
241                      break;                      break;
242                  case 7:                  case 3: // --no-tune
243                      printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");                      tune = false;
                     printf("--gig              loads a Gigasampler instrument\n");  
                     printf("--dls              loads a DLS instrument\n");  
                     printf("--instrument       index of the instrument in the instrument file if it\n");  
                     printf("                   contains more than one (default: 0)\n");  
                     printf("--numfragments     sets the number of audio fragments\n");  
                     printf("--fragmentsize     sets the fragment size\n");  
                     printf("--volume           sets global volume gain factor (a value > 1.0 means\n");  
                     printf("                   amplification, a value < 1.0 means attenuation,\n");  
                     printf("                   default: 0.25)\n");  
                     printf("--inputclient      connects to an Alsa sequencer input client on startup\n");  
                     printf("                   (e.g. 64:0 to connect to a client with ID 64 and port 0)\n");  
                     exit(0);  
244                      break;                      break;
245              }              }
246          }          }
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