/[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 420 by schoenebeck, Thu Mar 3 03:25:17 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     *   Copyright (C) 2005 Christian Schoenebeck                              *
7   *                                                                         *   *                                                                         *
8   *   This program is free software; you can redistribute it and/or modify  *   *   This program 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  *
# Line 20  Line 21 
21   *   MA  02111-1307  USA                                                   *   *   MA  02111-1307  USA                                                   *
22   ***************************************************************************/   ***************************************************************************/
23    
 #include <stdio.h>  
 #include <stdlib.h>  
 #include <unistd.h>  
24  #include <getopt.h>  #include <getopt.h>
25  #include <signal.h>  #include <signal.h>
 #include <pthread.h>  
26    
27  #include <string>  #include "Sampler.h"
28    #include "engines/EngineFactory.h"
29  #include "global.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
30  #include "diskthread.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
31  #include "audiothread.h"  #include "engines/gig/Profiler.h"
32  #include "alsaio.h"  #include "network/lscpserver.h"
33  #include "jackio.h"  #include "common/stacktrace.h"
34  #include "midiin.h"  #include "common/Features.h"
35  #include "stream.h"  
36  #include "RIFF.h"  using namespace LinuxSampler;
37  #include "gig.h"  
38    Sampler*    pSampler    = NULL;
39  #define AUDIO_CHANNELS          2     // stereo  LSCPServer* pLSCPServer = NULL;
40  #define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2  pthread_t   main_thread;
41  #define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames  bool bPrintStatistics = false;
42  #define AUDIO_SAMPLERATE        44100 // Hz  bool profile = false;
43    bool tune = true;
 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;  
44    
45  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
46  void signal_handler(int signal);  void signal_handler(int signal);
47    void kill_app();
48    
49  int main(int argc, char **argv) {  int main(int argc, char **argv) {
50      pAudioIO = NULL;  
51      pRIFF    = NULL;      // initialize the stack trace mechanism with our binary file
52      pGig     = NULL;      StackTraceInit(argv[0], -1);
53    
54        main_thread = pthread_self();
55    
56      // 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();  
57      signal(SIGINT, signal_handler);      signal(SIGINT, signal_handler);
58    
59      patch_format      = patch_format_unknown;      // register signal handler for all unusual signals
60      instrument_index  = 0;      // (we will print the stack trace and exit)
61      num_fragments     = AUDIO_FRAGMENTS;      struct sigaction sact;
62      fragmentsize      = AUDIO_FRAGMENTSIZE;      sigemptyset(&sact.sa_mask);
63      volume            = 0.25; // default volume      sact.sa_flags   = 0;
64        sact.sa_handler = signal_handler;
65        sigaction(SIGSEGV, &sact, NULL);
66        sigaction(SIGBUS,  &sact, NULL);
67        sigaction(SIGILL,  &sact, NULL);
68        sigaction(SIGFPE,  &sact, NULL);
69        sigaction(SIGUSR1, &sact, NULL);
70        sigaction(SIGUSR2, &sact, NULL);
71    
72      // parse and assign command line options      // parse and assign command line options
73      parse_options(argc, argv);      parse_options(argc, argv);
74    
75      if (patch_format != patch_format_gig) {      dmsg(1,("LinuxSampler %s\n", VERSION));
76          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"));
77          printf("Use 'linuxsampler --help' to see all available options.\n");      dmsg(1,("Copyright (C) 2005 Christian Schoenebeck\n"));
78          return EXIT_FAILURE;  
79        if (tune)
80        {
81                // detect and print system / CPU specific features
82                String sFeatures;
83                Features::detect();
84    #if ARCH_X86
85                if (Features::supportsMMX()) sFeatures += " MMX";
86                if (Features::supportsSSE()) sFeatures += " SSE";
87    #endif // ARCH_X86
88                if (!sFeatures.size()) sFeatures = " None";
89                dmsg(1,("Detected features:%s\n",sFeatures.c_str()));
90      }      }
91    
92  #if HAVE_JACK      // create LinuxSampler instance
93      dmsg(1,("Initializing audio output (Jack)..."));      dmsg(1,("Creating Sampler..."));
94      pAudioIO = new JackIO();      pSampler = new Sampler;
     int error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS);  
     if (error) {  
         dmsg(1,("Trying Alsa output instead.\n"));  
         dmsg(1,("Initializing audio output (Alsa)..."));  
         pAudioIO = new AlsaIO();  
         int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);  
         if (error) return EXIT_FAILURE;  
     }  
95      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
 #else // Alsa only  
     dmsg(1,("Initializing audio output (Alsa)..."));  
     pAudioIO = new AlsaIO();  
     int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);  
     if (error) return EXIT_FAILURE;  
     dmsg(1,("OK\n"));  
 #endif // HAVE_JACK  
   
     // Loading gig file  
     try {  
         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;  
     }  
96    
97      DiskThread*  pDiskThread   = new DiskThread(((pAudioIO->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo      dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
98      AudioThread* pAudioThread  = new AudioThread(pAudioIO, pDiskThread, pInstrument);      dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
     MidiIn*      pMidiInThread = new MidiIn(pAudioThread);  
99    
100      dmsg(1,("Starting disk thread..."));      // start LSCP network server
101      pDiskThread->StartThread();      dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
102      dmsg(1,("OK\n"));      pLSCPServer = new LSCPServer(pSampler);
103      dmsg(1,("Starting MIDI in thread..."));      pLSCPServer->StartThread();
104      if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str());      pLSCPServer->WaitUntilInitialized();
     pMidiInThread->StartThread();  
105      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
106    
107      sleep(1);      if (profile)
108      dmsg(1,("Starting audio thread..."));      {
109      pAudioThread->Volume = volume;              dmsg(1,("Calibrating profiler..."));
110      pAudioIO->AssignEngine(pAudioThread);              gig::Profiler::Calibrate();
111      pAudioIO->Activate();              gig::Profiler::Reset();
112      dmsg(1,("OK\n"));              dmsg(1,("OK\n"));
113        }
114    
115      printf("LinuxSampler initialization completed.\n");      printf("LinuxSampler initialization completed.\n");
116    
117      while(true)  {      std::list<LSCPEvent::event_t> rtEvents;
118        printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",      rtEvents.push_back(LSCPEvent::event_voice_count);
119              pAudioThread->ActiveVoiceCount, pAudioThread->ActiveVoiceCountMax,      rtEvents.push_back(LSCPEvent::event_stream_count);
120              pDiskThread->ActiveStreamCount, pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());      rtEvents.push_back(LSCPEvent::event_buffer_fill);
121        fflush(stdout);  
122        usleep(500000);      while (true) {
123            if (bPrintStatistics) {
124                std::set<Engine*> engines = EngineFactory::EngineInstances();
125                std::set<Engine*>::iterator itEngine = engines.begin();
126                for (int i = 0; itEngine != engines.end(); itEngine++, i++) {
127                    Engine* pEngine = *itEngine;
128                    printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i,
129                        pEngine->VoiceCount(), pEngine->VoiceCountMax(),
130                        pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax()
131                    );
132                    fflush(stdout);
133                }
134            }
135            
136          sleep(1);
137          if (profile)
138          {
139                  unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
140                  unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
141                  if (bv != 0)
142                  {
143                          printf("       BogoVoices: %i         \r", bv);
144                          fflush(stdout);
145                  }
146          }
147          
148          if (LSCPServer::EventSubscribers(rtEvents))
149          {
150                  LSCPServer::LockRTNotify();
151                  std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels();
152                  std::map<uint,SamplerChannel*>::iterator iter = channels.begin();
153                  for (; iter != channels.end(); iter++) {
154                          SamplerChannel* pSamplerChannel = iter->second;
155                          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
156                          if (!pEngineChannel) continue;
157                          Engine* pEngine = pEngineChannel->GetEngine();
158                          if (!pEngine) continue;
159                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount()));
160                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount()));
161                          LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage()));
162                  }
163                  LSCPServer::UnlockRTNotify();
164          }
165    
166      }      }
167    
168      return EXIT_SUCCESS;      return EXIT_SUCCESS;
169  }  }
170    
171  void signal_handler(int signal) {  void signal_handler(int iSignal) {
172      if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {      switch (iSignal) {
173          // stop all threads          case SIGINT: {
174          if (pAudioIO)      pAudioIO->Close();              if (pthread_equal(pthread_self(), main_thread)) {
175          if (pMidiInThread) pMidiInThread->StopThread();                  if (pLSCPServer) {
176          if (pDiskThread)   pDiskThread->StopThread();                      pLSCPServer->StopThread();
177                        delete pLSCPServer;
178          // free all resources                  }
179          if (pMidiInThread) delete pMidiInThread;                  if (pSampler) delete pSampler;
180          if (pAudioThread)  delete pAudioThread;                  printf("LinuxSampler stopped due to SIGINT.\n");
181          if (pDiskThread)   delete pDiskThread;                  exit(EXIT_SUCCESS);
182          if (pGig)          delete pGig;              }
183          if (pRIFF)         delete pRIFF;              return;
184          if (pAudioIO)      delete pAudioIO;          }
185            case SIGSEGV:
186          printf("LinuxSampler stopped due to SIGINT\n");              std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
187          exit(EXIT_SUCCESS);              break;
188            case SIGBUS:
189                std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
190                break;
191            case SIGILL:
192                std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
193                break;
194            case SIGFPE:
195                std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
196                break;
197            case SIGUSR1:
198                std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
199                break;
200            case SIGUSR2:
201                std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
202                break;
203            default: { // this should never happen, as we register for the signals we want
204                std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
205                break;
206            }
207      }      }
208        signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
209        std::cerr << "Showing stack trace...\n" << std::flush;
210        StackTrace();
211        sleep(2);
212        std::cerr << "Killing LinuxSampler...\n" << std::flush;
213        kill_app(); // Use abort() if we want to generate a core dump.
214    }
215    
216    void kill_app() {
217        kill(main_thread, SIGKILL);
218  }  }
219    
220  void parse_options(int argc, char **argv) {  void parse_options(int argc, char **argv) {
# Line 192  void parse_options(int argc, char **argv Line 222  void parse_options(int argc, char **argv
222      int option_index = 0;      int option_index = 0;
223      static struct option long_options[] =      static struct option long_options[] =
224          {          {
             {"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},  
225              {"help",0,0,0},              {"help",0,0,0},
226                {"version",0,0,0},
227                {"profile",0,0,0},
228                {"no-tune",0,0,0},
229                {"statistics",0,0,0},
230              {0,0,0,0}              {0,0,0,0}
231          };          };
232    
233      while (true) {      while (true) {
234          res = getopt_long_only(argc, argv, "", long_options, &option_index);          /*
235              Stephane Letz : letz@grame.fr
236              getopt_long_only does not exist on OSX : replaced by getopt_long for now.
237            */
238            res = getopt_long(argc, argv, "", long_options, &option_index);
239          if(res == -1) break;          if(res == -1) break;
240          if (res == 0) {          if (res == 0) {
241              switch(option_index) {              switch(option_index) {
242                  case 0:                  case 0: // --help
243                      num_fragments = atoi(optarg);                      printf("usage: linuxsampler [OPTIONS]\n\n");
244                      break;                      printf("--help             prints this message\n");
245                  case 1:                      printf("--version          prints version information\n");
246                      fragmentsize = atoi(optarg);                      printf("--profile          profile synthesis algorithms\n");
247                      break;                      printf("--no-tune          disable assembly optimization\n");
248                  case 2:                      printf("--statistics       prints periodically statistics\n");
249                      volume = atof(optarg);                      exit(EXIT_SUCCESS);
                     break;  
                 case 3:  
                     patch_format = patch_format_dls;  
250                      break;                      break;
251                  case 4:                  case 1: // --version
252                      patch_format = patch_format_gig;                      printf("LinuxSampler %s\n", VERSION);
253                        exit(EXIT_SUCCESS);
254                      break;                      break;
255                  case 5:                  case 2: // --profile
256                      instrument_index = atoi(optarg);                      profile = true;
257                      break;                      break;
258                  case 6:                  case 3: // --no-tune
259                      input_client = optarg;                      tune = false;
260                      break;                      break;
261                  case 7:                  case 4: // --statistics
262                      printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");                      bPrintStatistics = true;
                     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);  
263                      break;                      break;
264              }              }
265          }          }
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