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

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revision 35 by schoenebeck, Fri Mar 5 13:46:15 2004 UTC revision 271 by schoenebeck, Fri Oct 8 20:51:39 2004 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 "global.h"  #include "Sampler.h"
27  #include "diskthread.h"  #include "drivers/midi/MidiInputDeviceFactory.h"
28  #include "audiothread.h"  #include "drivers/audio/AudioOutputDeviceFactory.h"
 #include "alsaio.h"  
 #include "jackio.h"  
 #include "midiin.h"  
 #include "stream.h"  
 #include "RIFF.h"  
 #include "gig.h"  
29  #include "network/lscpserver.h"  #include "network/lscpserver.h"
30    #include "common/stacktrace.h"
31    
32  #define AUDIO_CHANNELS          2     // stereo  using namespace LinuxSampler;
33  #define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2  
34  #define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames  Sampler*    pSampler    = NULL;
35  #define AUDIO_SAMPLERATE        44100 // Hz  LSCPServer* pLSCPServer = NULL;
36    pthread_t   main_thread;
 enum patch_format_t {  
     patch_format_unknown,  
     patch_format_gig,  
     patch_format_dls  
 } patch_format = patch_format_unknown;  
   
 AudioIO*     pAudioIO         = NULL;  
 MidiIn*      pMidiInThread    = NULL;  
 LSCPServer*  pLSCPServer      = NULL;  
 AudioThread* pEngine          = NULL;  
 uint         instrument_index = 0;  
 double       volume           = 0.25;  
 int          num_fragments    = AUDIO_FRAGMENTS;  
 int          fragmentsize     = AUDIO_FRAGMENTSIZE;  
 uint         samplerate       = AUDIO_SAMPLERATE;  
 String       input_client;  
 String       alsaout          = "0,0"; // default card  
 String       jack_playback[2] = { "", "" };  
 bool         use_jack         = true;  
 bool         run_server       = false;  
 pthread_t    signalhandlerthread;  
37    
38  void parse_options(int argc, char **argv);  void parse_options(int argc, char **argv);
39  void signal_handler(int signal);  void signal_handler(int signal);
40    void kill_app();
41    
42  int main(int argc, char **argv) {  int main(int argc, char **argv) {
43    
44        // initialize the stack trace mechanism with our binary file
45        StackTraceInit(argv[0], -1);
46    
47        main_thread = pthread_self();
48    
49      // 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();  
50      signal(SIGINT, signal_handler);      signal(SIGINT, signal_handler);
51    
52      // parse and assign command line options      // register signal handler for all unusual signals
53      parse_options(argc, argv);      // (we will print the stack trace and exit)
54        struct sigaction sact;
55      if (patch_format != patch_format_gig) {      sigemptyset(&sact.sa_mask);
56          printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");      sact.sa_flags   = 0;
57          printf("Use 'linuxsampler --help' to see all available options.\n");      sact.sa_handler = signal_handler;
58          return EXIT_FAILURE;      sigaction(SIGSEGV, &sact, NULL);
59      }      sigaction(SIGBUS,  &sact, NULL);
60        sigaction(SIGILL,  &sact, NULL);
61        sigaction(SIGFPE,  &sact, NULL);
62        sigaction(SIGUSR1, &sact, NULL);
63        sigaction(SIGUSR2, &sact, NULL);
64    
65      int error = 1;      // parse and assign command line options
66  #if HAVE_JACK      //parse_options(argc, argv);
     if (use_jack) {  
         dmsg(1,("Initializing audio output (Jack)..."));  
         pAudioIO = new JackIO();  
         error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, jack_playback);  
         if (error) dmsg(1,("Trying Alsa output instead.\n"));  
     }  
 #endif // HAVE_JACK  
     if (error) {  
         dmsg(1,("Initializing audio output (Alsa)..."));  
         pAudioIO = new AlsaIO();  
         int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, samplerate, num_fragments, fragmentsize, alsaout);  
         if (error) return EXIT_FAILURE;  
     }  
     dmsg(1,("OK\n"));  
67    
68      AudioThread* pEngine       = new AudioThread(pAudioIO);      dmsg(1,("LinuxSampler %s\n", VERSION));
69      MidiIn*      pMidiInThread = new MidiIn(pEngine);      dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));
70    
71      // Loading gig file      // create LinuxSampler instance
72      result_t result = pEngine->LoadInstrument(argv[argc - 1], instrument_index);      dmsg(1,("Creating Sampler..."));
73      if (result.type == result_type_error) return EXIT_FAILURE;      pSampler = new Sampler;
     pEngine->Volume = volume;  
   
     dmsg(1,("Starting MIDI in thread..."));  
     if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str());  
     pMidiInThread->StartThread();  
74      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
75    
76      sleep(1);      dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
77        dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
78    
79      dmsg(1,("Starting audio thread..."));      // start LSCP network server
80      pAudioIO->AssignEngine(pEngine);      dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
81      pAudioIO->Activate();      pLSCPServer = new LSCPServer(pSampler);
82        pLSCPServer->StartThread();
83        pLSCPServer->WaitUntilInitialized();
84      dmsg(1,("OK\n"));      dmsg(1,("OK\n"));
85    
     if (run_server) {  
         dmsg(1,("Starting network server..."));  
         pLSCPServer = new LSCPServer(pEngine);  
         pLSCPServer->StartThread();  
         dmsg(1,("OK\n"));  
     }  
   
86      printf("LinuxSampler initialization completed.\n");      printf("LinuxSampler initialization completed.\n");
87    
88      while(true)  {      while(true)  {
89        printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",        /*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
90              pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,              pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
91              pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());              pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
92        fflush(stdout);        fflush(stdout);*/
93        usleep(500000);        usleep(500000);
94      }      }
95    
96      return EXIT_SUCCESS;      return EXIT_SUCCESS;
97  }  }
98    
99  void signal_handler(int signal) {  void signal_handler(int iSignal) {
100      if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {      switch (iSignal) {
101          // stop all threads          case SIGINT: {
102          if (pAudioIO)      pAudioIO->Close();              if (pthread_equal(pthread_self(), main_thread)) {
103          if (pMidiInThread) pMidiInThread->StopThread();                  if (pLSCPServer) {
104                        pLSCPServer->StopThread();
105          // free all resources                      delete pLSCPServer;
106          if (pMidiInThread) delete pMidiInThread;                  }
107          if (pEngine)       delete pEngine;                  if (pSampler) delete pSampler;
108          if (pAudioIO)      delete pAudioIO;                  printf("LinuxSampler stopped due to SIGINT.\n");
109                    exit(EXIT_SUCCESS);
110          printf("LinuxSampler stopped due to SIGINT\n");              }
111          exit(EXIT_SUCCESS);              return;
112            }
113            case SIGSEGV:
114                std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
115                break;
116            case SIGBUS:
117                std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
118                break;
119            case SIGILL:
120                std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
121                break;
122            case SIGFPE:
123                std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
124                break;
125            case SIGUSR1:
126                std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
127                break;
128            case SIGUSR2:
129                std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
130                break;
131            default: { // this should never happen, as we register for the signals we want
132                std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
133                break;
134            }
135      }      }
136        signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
137        std::cerr << "Showing stack trace...\n" << std::flush;
138        StackTrace();
139        sleep(2);
140        std::cerr << "Killing LinuxSampler...\n" << std::flush;
141        kill_app(); // Use abort() if we want to generate a core dump.
142  }  }
143    
144  void parse_options(int argc, char **argv) {  void kill_app() {
145        kill(main_thread, SIGKILL);
146    }
147    
148    /*void parse_options(int argc, char **argv) {
149      int res;      int res;
150      int option_index = 0;      int option_index = 0;
151      static struct option long_options[] =      static struct option long_options[] =
# Line 258  void parse_options(int argc, char **argv Line 247  void parse_options(int argc, char **argv
247              }              }
248          }          }
249      }      }
250  }  }*/
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