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* * |
* * |
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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
4 |
* * |
* * |
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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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* * |
* * |
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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 * |
21 |
***************************************************************************/ |
***************************************************************************/ |
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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 <pthread.h> |
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#include "global.h" |
#include "Sampler.h" |
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#include "diskthread.h" |
#include "drivers/midi/MidiInputDeviceFactory.h" |
28 |
#include "audiothread.h" |
#include "drivers/audio/AudioOutputDeviceFactory.h" |
29 |
#include "alsaio.h" |
#include "engines/gig/Profiler.h" |
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#include "jackio.h" |
#include "network/lscpserver.h" |
31 |
#include "midiin.h" |
#include "common/stacktrace.h" |
32 |
#include "stream.h" |
#include "common/Features.h" |
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#include "RIFF.h" |
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34 |
#include "gig.h" |
using namespace LinuxSampler; |
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36 |
#define AUDIO_CHANNELS 2 // stereo |
Sampler* pSampler = NULL; |
37 |
#define AUDIO_FRAGMENTS 3 // 3 fragments, if it does not work set it to 2 |
LSCPServer* pLSCPServer = NULL; |
38 |
#define AUDIO_FRAGMENTSIZE 512 // each fragment has 512 frames |
pthread_t main_thread; |
39 |
#define AUDIO_SAMPLERATE 44100 // Hz |
bool profile = false; |
40 |
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bool tune = true; |
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enum patch_format_t { |
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patch_format_unknown, |
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patch_format_gig, |
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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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uint instrument_index; |
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double volume; |
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int num_fragments; |
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int fragmentsize; |
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String input_client; |
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String alsaout; |
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String jack_playback[2]; |
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bool use_jack; |
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pthread_t signalhandlerthread; |
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uint samplerate; |
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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 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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signalhandlerthread = pthread_self(); |
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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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instrument_index = 0; |
// (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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volume = 0.25; // default volume |
sact.sa_flags = 0; |
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alsaout = "0,0"; // default card |
sact.sa_handler = signal_handler; |
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jack_playback[0] = ""; |
sigaction(SIGSEGV, &sact, NULL); |
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jack_playback[1] = ""; |
sigaction(SIGBUS, &sact, NULL); |
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samplerate = AUDIO_SAMPLERATE; |
sigaction(SIGILL, &sact, NULL); |
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use_jack = true; |
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 to load a .gig file!\n"); |
dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n")); |
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printf("Use 'linuxsampler --help' to see all available options.\n"); |
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return EXIT_FAILURE; |
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} |
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int error = 1; |
if (tune) |
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#if HAVE_JACK |
{ |
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if (use_jack) { |
// detect and print system / CPU specific features |
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dmsg(1,("Initializing audio output (Jack)...")); |
String sFeatures; |
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pAudioIO = new JackIO(); |
Features::detect(); |
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error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, jack_playback); |
#if ARCH_X86 |
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if (error) dmsg(1,("Trying Alsa output instead.\n")); |
if (Features::supportsMMX()) sFeatures += " MMX"; |
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} |
if (Features::supportsSSE()) sFeatures += " SSE"; |
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#endif // HAVE_JACK |
#endif // ARCH_X86 |
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if (error) { |
if (!sFeatures.size()) sFeatures = " None"; |
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dmsg(1,("Initializing audio output (Alsa)...")); |
dmsg(1,("Detected features:%s\n",sFeatures.c_str())); |
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pAudioIO = new AlsaIO(); |
} |
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int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, samplerate, num_fragments, fragmentsize, alsaout); |
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if (error) return EXIT_FAILURE; |
// create LinuxSampler instance |
89 |
} |
dmsg(1,("Creating Sampler...")); |
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pSampler = new Sampler; |
91 |
dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
92 |
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// Loading gig file |
dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str())); |
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try { |
dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str())); |
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printf("Loading gig file..."); |
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fflush(stdout); |
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pRIFF = new RIFF::File(argv[argc - 1]); |
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pGig = new gig::File(pRIFF); |
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pInstrument = pGig->GetInstrument(instrument_index); |
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if (!pInstrument) { |
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printf("there's no instrument with index %d.\n", instrument_index); |
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exit(EXIT_FAILURE); |
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} |
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pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part |
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printf("OK\n"); |
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fflush(stdout); |
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} |
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catch (RIFF::Exception e) { |
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e.PrintMessage(); |
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return EXIT_FAILURE; |
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} |
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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->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo |
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AudioThread* pAudioThread = new AudioThread(pAudioIO, pDiskThread, pInstrument); |
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MidiIn* pMidiInThread = new MidiIn(pAudioThread); |
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dmsg(1,("Starting disk thread...")); |
// start LSCP network server |
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pDiskThread->StartThread(); |
dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT)); |
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dmsg(1,("OK\n")); |
pLSCPServer = new LSCPServer(pSampler); |
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dmsg(1,("Starting MIDI in thread...")); |
pLSCPServer->StartThread(); |
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if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str()); |
pLSCPServer->WaitUntilInitialized(); |
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pMidiInThread->StartThread(); |
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dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
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sleep(1); |
if (profile) |
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dmsg(1,("Starting audio thread...")); |
{ |
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pAudioThread->Volume = volume; |
dmsg(1,("Calibrating profiler...")); |
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pAudioIO->AssignEngine(pAudioThread); |
gig::Profiler::Calibrate(); |
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pAudioIO->Activate(); |
gig::Profiler::Reset(); |
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dmsg(1,("OK\n")); |
dmsg(1,("OK\n")); |
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} |
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printf("LinuxSampler initialization completed.\n"); |
printf("LinuxSampler initialization completed.\n"); |
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while(true) { |
std::list<LSCPEvent::event_t> rtEvents; |
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printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r", |
rtEvents.push_back(LSCPEvent::event_voice_count); |
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pAudioThread->ActiveVoiceCount, pAudioThread->ActiveVoiceCountMax, |
rtEvents.push_back(LSCPEvent::event_stream_count); |
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pDiskThread->ActiveStreamCount, pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams()); |
rtEvents.push_back(LSCPEvent::event_buffer_fill); |
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fflush(stdout); |
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usleep(500000); |
while(true) |
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{ |
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/*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r", |
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pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax, |
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pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams()); |
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fflush(stdout);*/ |
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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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136 |
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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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Engine* pEngine = pSamplerChannel->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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} |
} |
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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) { |
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(); |
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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; |
} |
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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; |
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case SIGBUS: |
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std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush; |
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break; |
177 |
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case SIGILL: |
178 |
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std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush; |
179 |
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break; |
180 |
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case SIGFPE: |
181 |
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std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush; |
182 |
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break; |
183 |
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case SIGUSR1: |
184 |
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std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush; |
185 |
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break; |
186 |
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case SIGUSR2: |
187 |
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std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush; |
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break; |
189 |
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default: { // this should never happen, as we register for the signals we want |
190 |
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std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush; |
191 |
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break; |
192 |
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} |
193 |
} |
} |
194 |
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signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions |
195 |
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std::cerr << "Showing stack trace...\n" << std::flush; |
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StackTrace(); |
197 |
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sleep(2); |
198 |
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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. |
200 |
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} |
201 |
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202 |
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void kill_app() { |
203 |
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kill(main_thread, SIGKILL); |
204 |
} |
} |
205 |
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206 |
void parse_options(int argc, char **argv) { |
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 |
{ |
{ |
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{"numfragments",1,0,0}, |
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{"fragmentsize",1,0,0}, |
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{"volume",1,0,0}, |
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{"dls",0,0,0}, |
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{"gig",0,0,0}, |
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{"instrument",1,0,0}, |
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{"inputclient",1,0,0}, |
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{"alsaout",1,0,0}, |
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{"jackout",1,0,0}, |
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{"samplerate",1,0,0}, |
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211 |
{"help",0,0,0}, |
{"help",0,0,0}, |
212 |
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{"version",0,0,0}, |
213 |
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{"profile",0,0,0}, |
214 |
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{"no-tune",0,0,0}, |
215 |
{0,0,0,0} |
{0,0,0,0} |
216 |
}; |
}; |
217 |
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220 |
if(res == -1) break; |
if(res == -1) break; |
221 |
if (res == 0) { |
if (res == 0) { |
222 |
switch(option_index) { |
switch(option_index) { |
223 |
case 0: // --numfragments |
case 0: // --help |
224 |
num_fragments = atoi(optarg); |
printf("usage: linuxsampler [OPTIONS]\n\n"); |
225 |
break; |
printf("--help prints this message\n"); |
226 |
case 1: // --fragmentsize |
printf("--version prints version information\n"); |
227 |
fragmentsize = atoi(optarg); |
printf("--profile profile synthesis algorithms\n"); |
228 |
break; |
printf("--no-tune disable assembly optimization\n"); |
229 |
case 2: // --volume |
exit(EXIT_SUCCESS); |
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volume = atof(optarg); |
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break; |
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case 3: // --dls |
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patch_format = patch_format_dls; |
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break; |
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case 4: // --gig |
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patch_format = patch_format_gig; |
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break; |
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case 5: // --instrument |
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instrument_index = atoi(optarg); |
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break; |
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case 6: // --inputclient |
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input_client = optarg; |
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break; |
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case 7: // --alsaout |
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alsaout = optarg; |
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use_jack = false; // If this option is specified do not connect to jack |
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230 |
break; |
break; |
231 |
case 8: { // --jackout |
case 1: // --version |
232 |
try { |
printf("LinuxSampler %s\n", VERSION); |
233 |
String arg(optarg); |
exit(EXIT_SUCCESS); |
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// remove outer apostrophes |
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arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1)); |
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// split in two arguments |
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jack_playback[0] = arg.substr(0, arg.find("\' ")); |
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jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2)); |
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// remove inner apostrophes |
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jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\'')); |
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jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\'')); |
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// this is the default but set it up anyway in case alsa_card was also used. |
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use_jack = true; |
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} |
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catch (...) { |
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fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg); |
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exit(EXIT_FAILURE); |
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} |
|
234 |
break; |
break; |
235 |
} |
case 2: // --profile |
236 |
case 9: // --samplerate |
profile = true; |
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samplerate = atoi(optarg); |
|
237 |
break; |
break; |
238 |
case 10: // --help |
case 3: // --no-tune |
239 |
printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n"); |
tune = false; |
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printf("--gig loads a Gigasampler instrument\n"); |
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printf("--dls loads a DLS instrument\n"); |
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printf("--instrument index of the instrument in the instrument file if it\n"); |
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printf(" contains more than one (default: 0)\n"); |
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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("--volume sets global volume gain factor (a value > 1.0 means\n"); |
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printf(" amplification, a value < 1.0 means attenuation,\n"); |
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printf(" default: 0.25)\n"); |
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printf("--inputclient connects to an Alsa sequencer input client on startup\n"); |
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printf(" (e.g. 64:0 to connect to a client with ID 64 and port 0)\n"); |
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printf("--alsaout connects to the given Alsa sound device on startup\n"); |
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printf(" (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n"); |
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printf("--jackout connects to the given Jack playback ports on startup\n"); |
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printf(" (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n"); |
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printf(" in case of stereo output)\n"); |
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printf("--samplerate sets sample rate if supported by audio output system\n"); |
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printf(" (e.g. 44100)\n"); |
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exit(EXIT_SUCCESS); |
|
240 |
break; |
break; |
241 |
} |
} |
242 |
} |
} |