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* * |
* * |
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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* 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 * |
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* MA 02111-1307 USA * |
* MA 02111-1307 USA * |
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***************************************************************************/ |
***************************************************************************/ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <unistd.h> |
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#include <getopt.h> |
#include <getopt.h> |
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#include <signal.h> |
#include <signal.h> |
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#include "global.h" |
#include "Sampler.h" |
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#include "audioio.h" |
#include "engines/EngineFactory.h" |
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#include "diskthread.h" |
#include "drivers/midi/MidiInputDeviceFactory.h" |
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#include "audiothread.h" |
#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "midiin.h" |
#include "engines/gig/Profiler.h" |
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#include "stream.h" |
#include "network/lscpserver.h" |
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#include "RIFF.h" |
#include "common/stacktrace.h" |
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#include "gig.h" |
#include "common/Features.h" |
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#define AUDIO_CHANNELS 2 // stereo |
using namespace LinuxSampler; |
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#define AUDIO_FRAGMENTS 3 // 3 fragments, if it does not work set it to 2 |
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#define AUDIO_FRAGMENTSIZE 512 // each fragment has 512 frames |
Sampler* pSampler = NULL; |
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#define AUDIO_SAMPLERATE 44100 // Hz |
LSCPServer* pLSCPServer = NULL; |
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pthread_t main_thread; |
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enum patch_format_t { |
bool bPrintStatistics = false; |
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patch_format_unknown, |
bool profile = false; |
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patch_format_gig, |
bool tune = true; |
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patch_format_dls |
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} patch_format; |
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AudioIO* pAudioIO; |
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DiskThread* pDiskThread; |
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AudioThread* pAudioThread; |
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MidiIn* pMidiInThread; |
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RIFF::File* pRIFF; |
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gig::File* pGig; |
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gig::Instrument* pInstrument; |
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void parse_options(int argc, char **argv); |
void parse_options(int argc, char **argv); |
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void signal_handler(int signal); |
void signal_handler(int signal); |
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void kill_app(); |
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int midi_non_blocking; |
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int num_fragments; |
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int fragmentsize; |
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bool instrument_is_DLS; |
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bool instruemtn_is_gig; |
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char midi_device[40]; |
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int main(int argc, char **argv) { |
int main(int argc, char **argv) { |
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pAudioIO = NULL; |
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pRIFF = NULL; |
// initialize the stack trace mechanism with our binary file |
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pGig = NULL; |
StackTraceInit(argv[0], -1); |
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main_thread = pthread_self(); |
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// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>) |
// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>) |
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signal(SIGINT, signal_handler); |
signal(SIGINT, signal_handler); |
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patch_format = patch_format_unknown; |
// register signal handler for all unusual signals |
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midi_non_blocking = 1; |
// (we will print the stack trace and exit) |
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num_fragments = AUDIO_FRAGMENTS; |
struct sigaction sact; |
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fragmentsize = AUDIO_FRAGMENTSIZE; |
sigemptyset(&sact.sa_mask); |
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strcpy(midi_device, "/dev/midi00"); |
sact.sa_flags = 0; |
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sact.sa_handler = signal_handler; |
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sigaction(SIGSEGV, &sact, NULL); |
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sigaction(SIGBUS, &sact, NULL); |
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sigaction(SIGILL, &sact, NULL); |
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sigaction(SIGFPE, &sact, NULL); |
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sigaction(SIGUSR1, &sact, NULL); |
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sigaction(SIGUSR2, &sact, NULL); |
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// parse and assign command line options |
// parse and assign command line options |
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parse_options(argc, argv); |
parse_options(argc, argv); |
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if (patch_format != patch_format_gig) { |
dmsg(1,("LinuxSampler %s\n", VERSION)); |
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printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig\n"); |
dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n")); |
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printf("to load a .gig file!\n"); |
dmsg(1,("Copyright (C) 2005 Christian Schoenebeck\n")); |
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return EXIT_FAILURE; |
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if (tune) { |
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// detect and print system / CPU specific features |
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Features::detect(); |
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dmsg(1,("Detected features: %s\n", Features::featuresAsString().c_str())); |
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// prevent slow denormal FPU modes |
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Features::enableDenormalsAreZeroMode(); |
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} |
} |
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dmsg(("Initializing audio output...")); |
// create LinuxSampler instance |
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pAudioIO = new AudioIO(); |
dmsg(1,("Creating Sampler...")); |
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int error = pAudioIO->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize); |
pSampler = new Sampler; |
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if (error) return EXIT_FAILURE; |
dmsg(1,("OK\n")); |
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dmsg(("OK\n")); |
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dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str())); |
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// Loading gig file |
dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str())); |
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try { |
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printf("Loading gig file..."); |
// start LSCP network server |
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fflush(stdout); |
dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT)); |
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pRIFF = new RIFF::File(argv[argc - 1]); |
pLSCPServer = new LSCPServer(pSampler); |
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pGig = new gig::File(pRIFF); |
pLSCPServer->StartThread(); |
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pInstrument = pGig->GetFirstInstrument(); |
pLSCPServer->WaitUntilInitialized(); |
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pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part |
dmsg(1,("OK\n")); |
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printf("OK\n"); |
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fflush(stdout); |
if (profile) |
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} |
{ |
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catch (RIFF::Exception e) { |
dmsg(1,("Calibrating profiler...")); |
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e.PrintMessage(); |
gig::Profiler::Calibrate(); |
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return EXIT_FAILURE; |
gig::Profiler::Reset(); |
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} |
dmsg(1,("OK\n")); |
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catch (...) { |
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printf("Unknown exception while trying to parse gig file.\n"); |
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return EXIT_FAILURE; |
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} |
} |
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DiskThread* pDiskThread = new DiskThread(((pAudioIO->FragmentSize << MAX_PITCH) << 1) + 3); //FIXME: assuming stereo |
printf("LinuxSampler initialization completed. :-)\n\n"); |
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AudioThread* pAudioThread = new AudioThread(pAudioIO, pDiskThread, pInstrument); |
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MidiIn* pMidiInThread = new MidiIn(pAudioThread); |
std::list<LSCPEvent::event_t> rtEvents; |
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rtEvents.push_back(LSCPEvent::event_voice_count); |
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dmsg(("Starting disk thread...")); |
rtEvents.push_back(LSCPEvent::event_stream_count); |
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pDiskThread->StartThread(); |
rtEvents.push_back(LSCPEvent::event_buffer_fill); |
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dmsg(("OK\n")); |
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dmsg(("Starting MIDI in thread...")); |
while (true) { |
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pMidiInThread->StartThread(); |
if (bPrintStatistics) { |
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dmsg(("OK\n")); |
std::set<Engine*> engines = EngineFactory::EngineInstances(); |
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std::set<Engine*>::iterator itEngine = engines.begin(); |
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sleep(1); |
for (int i = 0; itEngine != engines.end(); itEngine++, i++) { |
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dmsg(("Starting audio thread...")); |
Engine* pEngine = *itEngine; |
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pAudioThread->StartThread(); |
printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i, |
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dmsg(("OK\n")); |
pEngine->VoiceCount(), pEngine->VoiceCountMax(), |
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pEngine->DiskStreamCount(), pEngine->DiskStreamCountMax() |
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); |
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fflush(stdout); |
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} |
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} |
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sleep(1); |
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if (profile) |
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{ |
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unsigned int samplingFreq = 48000; //FIXME: hardcoded for now |
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unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq); |
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if (bv != 0) |
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{ |
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printf(" BogoVoices: %i \r", bv); |
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fflush(stdout); |
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} |
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} |
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if (LSCPServer::EventSubscribers(rtEvents)) |
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{ |
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LSCPServer::LockRTNotify(); |
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std::map<uint,SamplerChannel*> channels = pSampler->GetSamplerChannels(); |
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std::map<uint,SamplerChannel*>::iterator iter = channels.begin(); |
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for (; iter != channels.end(); iter++) { |
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SamplerChannel* pSamplerChannel = iter->second; |
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EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel(); |
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if (!pEngineChannel) continue; |
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Engine* pEngine = pEngineChannel->GetEngine(); |
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if (!pEngine) continue; |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_voice_count, iter->first, pEngine->VoiceCount())); |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_stream_count, iter->first, pEngine->DiskStreamCount())); |
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LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_buffer_fill, iter->first, pEngine->DiskStreamBufferFillPercentage())); |
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} |
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LSCPServer::UnlockRTNotify(); |
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} |
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printf("LinuxSampler initialization completed.\n"); |
} |
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while(true) sleep(1000); |
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return EXIT_SUCCESS; |
return EXIT_SUCCESS; |
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} |
} |
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void signal_handler(int signal) { |
void signal_handler(int iSignal) { |
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if (signal == SIGINT) { |
switch (iSignal) { |
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// stop all threads |
case SIGINT: { |
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if (pMidiInThread) pMidiInThread->StopThread(); |
if (pthread_equal(pthread_self(), main_thread)) { |
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if (pAudioThread) pAudioThread->StopThread(); |
if (pLSCPServer) { |
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if (pDiskThread) pDiskThread->StopThread(); |
pLSCPServer->StopThread(); |
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delete pLSCPServer; |
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sleep(1); |
} |
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if (pSampler) delete pSampler; |
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// free all resources |
printf("LinuxSampler stopped due to SIGINT.\n"); |
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if (pMidiInThread) delete pMidiInThread; |
exit(EXIT_SUCCESS); |
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if (pAudioThread) delete pAudioThread; |
} |
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if (pDiskThread) delete pDiskThread; |
return; |
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if (pGig) delete pGig; |
} |
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if (pRIFF) delete pRIFF; |
case SIGSEGV: |
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if (pAudioIO) delete pAudioIO; |
std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush; |
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break; |
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printf("LinuxSampler stopped due to SIGINT\n"); |
case SIGBUS: |
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exit(EXIT_SUCCESS); |
std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush; |
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break; |
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case SIGILL: |
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std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush; |
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break; |
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case SIGFPE: |
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std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush; |
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break; |
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case SIGUSR1: |
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std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush; |
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break; |
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case SIGUSR2: |
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std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush; |
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break; |
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default: { // this should never happen, as we register for the signals we want |
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std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush; |
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break; |
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} |
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} |
} |
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signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions |
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std::cerr << "Showing stack trace...\n" << std::flush; |
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StackTrace(); |
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sleep(2); |
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std::cerr << "Killing LinuxSampler...\n" << std::flush; |
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kill_app(); // Use abort() if we want to generate a core dump. |
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} |
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void kill_app() { |
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kill(main_thread, SIGKILL); |
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} |
} |
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void parse_options(int argc, char **argv) { |
void parse_options(int argc, char **argv) { |
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int option_index = 0; |
int option_index = 0; |
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static struct option long_options[] = |
static struct option long_options[] = |
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{ |
{ |
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{"numfragments",1,0,0}, |
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{"fragmentsize",1,0,0}, |
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{"dls",0,0,0}, |
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{"gig",0,0,0}, |
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{"help",0,0,0}, |
{"help",0,0,0}, |
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{"version",0,0,0}, |
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{"profile",0,0,0}, |
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{"no-tune",0,0,0}, |
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{"statistics",0,0,0}, |
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{0,0,0,0} |
{0,0,0,0} |
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}; |
}; |
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while (true) { |
while (true) { |
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res = getopt_long_only(argc, argv, "", long_options, &option_index); |
/* |
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|
Stephane Letz : letz@grame.fr |
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getopt_long_only does not exist on OSX : replaced by getopt_long for now. |
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*/ |
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res = getopt_long(argc, argv, "", long_options, &option_index); |
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if(res == -1) break; |
if(res == -1) break; |
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if (res == 0) { |
if (res == 0) { |
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switch(option_index) { |
switch(option_index) { |
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case 0: |
case 0: // --help |
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num_fragments = atoi(optarg); |
printf("usage: linuxsampler [OPTIONS]\n\n"); |
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printf("--help prints this message\n"); |
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printf("--version prints version information\n"); |
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printf("--profile profile synthesis algorithms\n"); |
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printf("--no-tune disable assembly optimization\n"); |
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printf("--statistics prints periodically statistics\n"); |
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exit(EXIT_SUCCESS); |
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break; |
break; |
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case 1: |
case 1: // --version |
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fragmentsize = atoi(optarg); |
printf("LinuxSampler %s\n", VERSION); |
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exit(EXIT_SUCCESS); |
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break; |
break; |
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case 2: |
case 2: // --profile |
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patch_format = patch_format_dls; |
profile = true; |
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break; |
break; |
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case 3: |
case 3: // --no-tune |
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patch_format = patch_format_gig; |
tune = false; |
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break; |
break; |
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case 4: |
case 4: // --statistics |
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printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n"); |
bPrintStatistics = true; |
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printf("--numfragments sets the number of audio fragments\n"); |
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printf("--fragmentsize sets the fragment size\n"); |
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printf("--dls loads a DLS instrument\n"); |
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printf("--gig loads a Gigasampler instrument\n"); |
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exit(0); |
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break; |
break; |
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} |
} |
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} |
} |