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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* 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 * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#include <getopt.h> |
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#include <signal.h> |
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|
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#include "Sampler.h" |
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#include "engines/EngineFactory.h" |
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#include "drivers/midi/MidiInputDeviceFactory.h" |
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#include "drivers/audio/AudioOutputDeviceFactory.h" |
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#include "engines/gig/Profiler.h" |
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#include "network/lscpserver.h" |
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#include "common/stacktrace.h" |
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#include "common/Features.h" |
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|
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using namespace LinuxSampler; |
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|
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Sampler* pSampler = NULL; |
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LSCPServer* pLSCPServer = NULL; |
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pthread_t main_thread; |
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bool bPrintStatistics = false; |
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bool profile = false; |
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bool tune = true; |
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|
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void parse_options(int argc, char **argv); |
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void signal_handler(int signal); |
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void kill_app(); |
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|
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int main(int argc, char **argv) { |
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|
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// initialize the stack trace mechanism with our binary file |
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StackTraceInit(argv[0], -1); |
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|
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main_thread = pthread_self(); |
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|
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// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>) |
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signal(SIGINT, signal_handler); |
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|
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// register signal handler for all unusual signals |
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// (we will print the stack trace and exit) |
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struct sigaction sact; |
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sigemptyset(&sact.sa_mask); |
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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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|
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// parse and assign command line options |
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parse_options(argc, argv); |
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|
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dmsg(1,("LinuxSampler %s\n", VERSION)); |
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dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n")); |
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dmsg(1,("Copyright (C) 2005 Christian Schoenebeck\n")); |
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|
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if (tune) |
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{ |
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// detect and print system / CPU specific features |
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String sFeatures; |
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Features::detect(); |
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#if ARCH_X86 |
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if (Features::supportsMMX()) sFeatures += " MMX"; |
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if (Features::supportsSSE()) sFeatures += " SSE"; |
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if (Features::supportsSSE2()) { |
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sFeatures += " SSE2"; |
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|
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// enable denormals-are-zeros mode |
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int x; |
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__asm__ __volatile__ ( |
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"stmxcsr %0\n\t" |
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"movl %0, %%eax\n\t" |
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"orl $0x40, %%eax\n\t" |
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"movl %%eax, %0\n\t" |
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"ldmxcsr %0\n\t" |
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:: "m" (x) |
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: "%eax" |
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); |
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} |
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#endif // ARCH_X86 |
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if (!sFeatures.size()) sFeatures = " None"; |
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dmsg(1,("Detected features:%s\n",sFeatures.c_str())); |
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} |
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|
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// create LinuxSampler instance |
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dmsg(1,("Creating Sampler...")); |
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pSampler = new Sampler; |
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dmsg(1,("OK\n")); |
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|
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dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str())); |
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dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str())); |
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|
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// start LSCP network server |
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dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT)); |
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pLSCPServer = new LSCPServer(pSampler); |
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pLSCPServer->StartThread(); |
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pLSCPServer->WaitUntilInitialized(); |
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dmsg(1,("OK\n")); |
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|
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if (profile) |
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{ |
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dmsg(1,("Calibrating profiler...")); |
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gig::Profiler::Calibrate(); |
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gig::Profiler::Reset(); |
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dmsg(1,("OK\n")); |
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} |
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|
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printf("LinuxSampler initialization completed.\n"); |
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|
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std::list<LSCPEvent::event_t> rtEvents; |
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rtEvents.push_back(LSCPEvent::event_voice_count); |
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rtEvents.push_back(LSCPEvent::event_stream_count); |
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rtEvents.push_back(LSCPEvent::event_buffer_fill); |
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|
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while (true) { |
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if (bPrintStatistics) { |
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std::set<Engine*> engines = EngineFactory::EngineInstances(); |
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std::set<Engine*>::iterator itEngine = engines.begin(); |
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for (int i = 0; itEngine != engines.end(); itEngine++, i++) { |
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Engine* pEngine = *itEngine; |
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printf("Engine %d) Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d)\n", i, |
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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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|
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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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|
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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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|
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} |
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|
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return EXIT_SUCCESS; |
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} |
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|
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void signal_handler(int iSignal) { |
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switch (iSignal) { |
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case SIGINT: { |
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if (pthread_equal(pthread_self(), main_thread)) { |
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if (pLSCPServer) { |
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pLSCPServer->StopThread(); |
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delete pLSCPServer; |
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} |
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if (pSampler) delete pSampler; |
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printf("LinuxSampler stopped due to SIGINT.\n"); |
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exit(EXIT_SUCCESS); |
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} |
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return; |
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} |
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case SIGSEGV: |
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std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush; |
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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; |
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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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|
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void kill_app() { |
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kill(main_thread, SIGKILL); |
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} |
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|
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void parse_options(int argc, char **argv) { |
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int res; |
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int option_index = 0; |
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static struct option long_options[] = |
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{ |
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{"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} |
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}; |
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|
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while (true) { |
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/* |
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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; |
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if (res == 0) { |
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switch(option_index) { |
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case 0: // --help |
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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; |
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case 1: // --version |
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printf("LinuxSampler %s\n", VERSION); |
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exit(EXIT_SUCCESS); |
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break; |
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case 2: // --profile |
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profile = true; |
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break; |
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case 3: // --no-tune |
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tune = false; |
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break; |
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case 4: // --statistics |
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bPrintStatistics = true; |
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break; |
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} |
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} |
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} |
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} |
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