trunk/src/linuxsampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#include <getopt.h>
#include <signal.h>

#include "Sampler.h"
#include "drivers/midi/MidiInputDeviceFactory.h"
#include "drivers/audio/AudioOutputDeviceFactory.h"
#include "engines/gig/Profiler.h"
#include "network/lscpserver.h"
#include "common/stacktrace.h"
#include "common/Features.h"

using namespace LinuxSampler;

Sampler*    pSampler    = NULL;
LSCPServer* pLSCPServer = NULL;
pthread_t   main_thread;
bool profile = false;
bool tune = true;

void parse_options(int argc, char **argv);
void signal_handler(int signal);
void kill_app();

int main(int argc, char **argv) {

    // initialize the stack trace mechanism with our binary file
    StackTraceInit(argv[0], -1);

    main_thread = pthread_self();

    // setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
    signal(SIGINT, signal_handler);

    // register signal handler for all unusual signals
    // (we will print the stack trace and exit)
    struct sigaction sact;
    sigemptyset(&sact.sa_mask);
    sact.sa_flags   = 0;
    sact.sa_handler = signal_handler;
    sigaction(SIGSEGV, &sact, NULL);
    sigaction(SIGBUS,  &sact, NULL);
    sigaction(SIGILL,  &sact, NULL);
    sigaction(SIGFPE,  &sact, NULL);
    sigaction(SIGUSR1, &sact, NULL);
    sigaction(SIGUSR2, &sact, NULL);

    // parse and assign command line options
    parse_options(argc, argv);

    dmsg(1,("LinuxSampler %s\n", VERSION));
    dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));

    if (tune)
    {
            // detect and print system / CPU specific features
            String sFeatures;
            Features::detect();
#if ARCH_X86
            if (Features::supportsMMX()) sFeatures += " MMX";
            if (Features::supportsSSE()) sFeatures += " SSE";
#endif // ARCH_X86
            if (!sFeatures.size()) sFeatures = " None";
            dmsg(1,("Detected features:%s\n",sFeatures.c_str()));
    }

    // create LinuxSampler instance
    dmsg(1,("Creating Sampler..."));
    pSampler = new Sampler;
    dmsg(1,("OK\n"));

    dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
    dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));

    // start LSCP network server
    dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
    pLSCPServer = new LSCPServer(pSampler);
    pLSCPServer->StartThread();
    pLSCPServer->WaitUntilInitialized();
    dmsg(1,("OK\n"));

    if (profile)
    {
            dmsg(1,("Calibrating profiler..."));
            gig::Profiler::Calibrate();
            gig::Profiler::Reset();
            dmsg(1,("OK\n"));
    }

    printf("LinuxSampler initialization completed.\n");

    while(true)  {
      /*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
            pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
            pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
      fflush(stdout);*/
      sleep(1);
      if (profile)
      {
              unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
              unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
              if (bv != 0)
              {
                      printf("       BogoVoices: %i         \r", bv);
                      fflush(stdout);
              }
      }
    }

    return EXIT_SUCCESS;
}

void signal_handler(int iSignal) {
    switch (iSignal) {
        case SIGINT: {
            if (pthread_equal(pthread_self(), main_thread)) {
                if (pLSCPServer) {
                    pLSCPServer->StopThread();
                    delete pLSCPServer;
                }
                if (pSampler) delete pSampler;
                printf("LinuxSampler stopped due to SIGINT.\n");
                exit(EXIT_SUCCESS);
            }
            return;
        }
        case SIGSEGV:
            std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
            break;
        case SIGBUS:
            std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
            break;
        case SIGILL:
            std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
            break;
        case SIGFPE:
            std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
            break;
        case SIGUSR1:
            std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
            break;
        case SIGUSR2:
            std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
            break;
        default: { // this should never happen, as we register for the signals we want
            std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
            break;
        }
    }
    signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
    std::cerr << "Showing stack trace...\n" << std::flush;
    StackTrace();
    sleep(2);
    std::cerr << "Killing LinuxSampler...\n" << std::flush;
    kill_app(); // Use abort() if we want to generate a core dump.
}

void kill_app() {
    kill(main_thread, SIGKILL);
}

void parse_options(int argc, char **argv) {
    int res;
    int option_index = 0;
    static struct option long_options[] =
        {
            {"help",0,0,0},
            {"version",0,0,0},
            {"profile",0,0,0},
            {"no-tune",0,0,0},
            {0,0,0,0}
        };

    while (true) {
        res = getopt_long_only(argc, argv, "", long_options, &option_index);
        if(res == -1) break;
        if (res == 0) {
            switch(option_index) {
                case 0: // --help
                    printf("usage: linuxsampler [OPTIONS]\n\n");
                    printf("--help             prints this message\n");
                    printf("--version          prints version information\n");
                    printf("--profile          profile synthesis algorithms\n");
                    printf("--no-tune          disable assembly optimization\n");
                    exit(EXIT_SUCCESS);
                    break;
                case 1: // --version
                    printf("LinuxSampler %s\n", VERSION);
                    exit(EXIT_SUCCESS);
                    break;
                case 2: // --profile
                    profile = true;
                    break;
                case 3: // --no-tune
                    tune = false;
                    break;
            }
        }
    }
}
1	/***************************************************************************
2	* *
3	* LinuxSampler - modular, streaming capable sampler *
4	* *
5	* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck *
6	* *
7	* 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 *
9	* the Free Software Foundation; either version 2 of the License, or *
10	* (at your option) any later version. *
11	* *
12	* This program is distributed in the hope that it will be useful, *
13	* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15	* GNU General Public License for more details. *
16	* *
17	* You should have received a copy of the GNU General Public License *
18	* along with this program; if not, write to the Free Software *
19	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20	* MA 02111-1307 USA *
21	***************************************************************************/
22
23	#include <getopt.h>
24	#include <signal.h>
25
26	#include "Sampler.h"
27	#include "drivers/midi/MidiInputDeviceFactory.h"
28	#include "drivers/audio/AudioOutputDeviceFactory.h"
29	#include "engines/gig/Profiler.h"
30	#include "network/lscpserver.h"
31	#include "common/stacktrace.h"
32	#include "common/Features.h"
33
34	using namespace LinuxSampler;
35
36	Sampler* pSampler = NULL;
37	LSCPServer* pLSCPServer = NULL;
38	pthread_t main_thread;
39	bool profile = false;
40	bool tune = true;
41
42	void parse_options(int argc, char **argv);
43	void signal_handler(int signal);
44	void kill_app();
45
46	int main(int argc, char **argv) {
47
48	// initialize the stack trace mechanism with our binary file
49	StackTraceInit(argv[0], -1);
50
51	main_thread = pthread_self();
52
53	// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
54	signal(SIGINT, signal_handler);
55
56	// register signal handler for all unusual signals
57	// (we will print the stack trace and exit)
58	struct sigaction sact;
59	sigemptyset(&sact.sa_mask);
60	sact.sa_flags = 0;
61	sact.sa_handler = signal_handler;
62	sigaction(SIGSEGV, &sact, NULL);
63	sigaction(SIGBUS, &sact, NULL);
64	sigaction(SIGILL, &sact, NULL);
65	sigaction(SIGFPE, &sact, NULL);
66	sigaction(SIGUSR1, &sact, NULL);
67	sigaction(SIGUSR2, &sact, NULL);
68
69	// parse and assign command line options
70	parse_options(argc, argv);
71
72	dmsg(1,("LinuxSampler %s\n", VERSION));
73	dmsg(1,("Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck\n"));
74
75	if (tune)
76	{
77	// detect and print system / CPU specific features
78	String sFeatures;
79	Features::detect();
80	#if ARCH_X86
81	if (Features::supportsMMX()) sFeatures += " MMX";
82	if (Features::supportsSSE()) sFeatures += " SSE";
83	#endif // ARCH_X86
84	if (!sFeatures.size()) sFeatures = " None";
85	dmsg(1,("Detected features:%s\n",sFeatures.c_str()));
86	}
87
88	// create LinuxSampler instance
89	dmsg(1,("Creating Sampler..."));
90	pSampler = new Sampler;
91	dmsg(1,("OK\n"));
92
93	dmsg(1,("Registered MIDI input drivers: %s\n", MidiInputDeviceFactory::AvailableDriversAsString().c_str()));
94	dmsg(1,("Registered audio output drivers: %s\n", AudioOutputDeviceFactory::AvailableDriversAsString().c_str()));
95
96	// start LSCP network server
97	dmsg(1,("Starting LSCP network server (on TCP port %d)...", LSCP_PORT));
98	pLSCPServer = new LSCPServer(pSampler);
99	pLSCPServer->StartThread();
100	pLSCPServer->WaitUntilInitialized();
101	dmsg(1,("OK\n"));
102
103	if (profile)
104	{
105	dmsg(1,("Calibrating profiler..."));
106	gig::Profiler::Calibrate();
107	gig::Profiler::Reset();
108	dmsg(1,("OK\n"));
109	}
110
111	printf("LinuxSampler initialization completed.\n");
112
113	while(true) {
114	/*printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
115	pEngine->ActiveVoiceCount, pEngine->ActiveVoiceCountMax,
116	pEngine->pDiskThread->ActiveStreamCount, pEngine->pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
117	fflush(stdout);*/
118	sleep(1);
119	if (profile)
120	{
121	unsigned int samplingFreq = 48000; //FIXME: hardcoded for now
122	unsigned int bv = gig::Profiler::GetBogoVoices(samplingFreq);
123	if (bv != 0)
124	{
125	printf(" BogoVoices: %i \r", bv);
126	fflush(stdout);
127	}
128	}
129	}
130
131	return EXIT_SUCCESS;
132	}
133
134	void signal_handler(int iSignal) {
135	switch (iSignal) {
136	case SIGINT: {
137	if (pthread_equal(pthread_self(), main_thread)) {
138	if (pLSCPServer) {
139	pLSCPServer->StopThread();
140	delete pLSCPServer;
141	}
142	if (pSampler) delete pSampler;
143	printf("LinuxSampler stopped due to SIGINT.\n");
144	exit(EXIT_SUCCESS);
145	}
146	return;
147	}
148	case SIGSEGV:
149	std::cerr << ">>> FATAL ERROR: Segmentation fault (SIGSEGV) occured! <<<\n" << std::flush;
150	break;
151	case SIGBUS:
152	std::cerr << ">>> FATAL ERROR: Access to undefined portion of a memory object (SIGBUS) occured! <<<\n" << std::flush;
153	break;
154	case SIGILL:
155	std::cerr << ">>> FATAL ERROR: Illegal instruction (SIGILL) occured! <<<\n" << std::flush;
156	break;
157	case SIGFPE:
158	std::cerr << ">>> FATAL ERROR: Erroneous arithmetic operation (SIGFPE) occured! <<<\n" << std::flush;
159	break;
160	case SIGUSR1:
161	std::cerr << ">>> User defined signal 1 (SIGUSR1) received <<<\n" << std::flush;
162	break;
163	case SIGUSR2:
164	std::cerr << ">>> User defined signal 2 (SIGUSR2) received <<<\n" << std::flush;
165	break;
166	default: { // this should never happen, as we register for the signals we want
167	std::cerr << ">>> FATAL ERROR: Unknown signal received! <<<\n" << std::flush;
168	break;
169	}
170	}
171	signal(iSignal, SIG_DFL); // Reinstall default handler to prevent race conditions
172	std::cerr << "Showing stack trace...\n" << std::flush;
173	StackTrace();
174	sleep(2);
175	std::cerr << "Killing LinuxSampler...\n" << std::flush;
176	kill_app(); // Use abort() if we want to generate a core dump.
177	}
178
179	void kill_app() {
180	kill(main_thread, SIGKILL);
181	}
182
183	void parse_options(int argc, char **argv) {
184	int res;
185	int option_index = 0;
186	static struct option long_options[] =
187	{
188	{"help",0,0,0},
189	{"version",0,0,0},
190	{"profile",0,0,0},
191	{"no-tune",0,0,0},
192	{0,0,0,0}
193	};
194
195	while (true) {
196	res = getopt_long_only(argc, argv, "", long_options, &option_index);
197	if(res == -1) break;
198	if (res == 0) {
199	switch(option_index) {
200	case 0: // --help
201	printf("usage: linuxsampler [OPTIONS]\n\n");
202	printf("--help prints this message\n");
203	printf("--version prints version information\n");
204	printf("--profile profile synthesis algorithms\n");
205	printf("--no-tune disable assembly optimization\n");
206	exit(EXIT_SUCCESS);
207	break;
208	case 1: // --version
209	printf("LinuxSampler %s\n", VERSION);
210	exit(EXIT_SUCCESS);
211	break;
212	case 2: // --profile
213	profile = true;
214	break;
215	case 3: // --no-tune
216	tune = false;
217	break;
218	}
219	}
220	}
221	}