trunk/src/linuxsampler.cpp

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003 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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <getopt.h>
#include <signal.h>
#include <pthread.h>

#include "global.h"
#include "diskthread.h"
#include "audiothread.h"
#include "alsaio.h"
#include "jackio.h"
#include "midiin.h"
#include "stream.h"
#include "RIFF.h"
#include "gig.h"

#define AUDIO_CHANNELS          2     // stereo
#define AUDIO_FRAGMENTS         3     // 3 fragments, if it does not work set it to 2
#define AUDIO_FRAGMENTSIZE      512   // each fragment has 512 frames
#define AUDIO_SAMPLERATE        44100 // Hz

enum patch_format_t {
    patch_format_unknown,
    patch_format_gig,
    patch_format_dls
} patch_format;

AudioIO*         pAudioIO;
DiskThread*      pDiskThread;
AudioThread*     pAudioThread;
MidiIn*          pMidiInThread;
RIFF::File*      pRIFF;
gig::File*       pGig;
gig::Instrument* pInstrument;
uint             instrument_index;
double           volume;
int              num_fragments;
int              fragmentsize;
String           input_client;
String           alsaout;
String           jack_playback[2];
bool             use_jack;
pthread_t        signalhandlerthread;
uint             samplerate;

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

int main(int argc, char **argv) {
    pAudioIO = NULL;
    pRIFF    = NULL;
    pGig     = NULL;

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

    patch_format      = patch_format_unknown;
    instrument_index  = 0;
    num_fragments     = AUDIO_FRAGMENTS;
    fragmentsize      = AUDIO_FRAGMENTSIZE;
    volume            = 0.25; // default volume
    alsaout           = "0,0"; // default card
    jack_playback[0]  = "";
    jack_playback[1]  = "";
    samplerate        = AUDIO_SAMPLERATE;
    use_jack          = true;

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

    if (patch_format != patch_format_gig) {
        printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");
        printf("Use 'linuxsampler --help' to see all available options.\n");
        return EXIT_FAILURE;
    }

    int error = 1;
#if HAVE_JACK
    if (use_jack) {
        dmsg(1,("Initializing audio output (Jack)..."));
        pAudioIO = new JackIO();
        error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, jack_playback);
        if (error) dmsg(1,("Trying Alsa output instead.\n"));
    }
#endif // HAVE_JACK
    if (error) {
        dmsg(1,("Initializing audio output (Alsa)..."));
        pAudioIO = new AlsaIO();
        int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, samplerate, num_fragments, fragmentsize, alsaout);
        if (error) return EXIT_FAILURE;
    }
    dmsg(1,("OK\n"));

    // Loading gig file
    try {
        printf("Loading gig file...");
        fflush(stdout);
        pRIFF       = new RIFF::File(argv[argc - 1]);
        pGig        = new gig::File(pRIFF);
        pInstrument = pGig->GetInstrument(instrument_index);
        if (!pInstrument) {
            printf("there's no instrument with index %d.\n", instrument_index);
            exit(EXIT_FAILURE);
        }
        pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part
        printf("OK\n");
        fflush(stdout);
    }
    catch (RIFF::Exception e) {
        e.PrintMessage();
        return EXIT_FAILURE;
    }
    catch (...) {
        printf("Unknown exception while trying to parse gig file.\n");
        return EXIT_FAILURE;
    }

    DiskThread*  pDiskThread   = new DiskThread(((pAudioIO->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
    AudioThread* pAudioThread  = new AudioThread(pAudioIO, pDiskThread, pInstrument);
    MidiIn*      pMidiInThread = new MidiIn(pAudioThread);

    dmsg(1,("Starting disk thread..."));
    pDiskThread->StartThread();
    dmsg(1,("OK\n"));
    dmsg(1,("Starting MIDI in thread..."));
    if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str());
    pMidiInThread->StartThread();
    dmsg(1,("OK\n"));

    sleep(1);
    dmsg(1,("Starting audio thread..."));
    pAudioThread->Volume = volume;
    pAudioIO->AssignEngine(pAudioThread);
    pAudioIO->Activate();
    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",
            pAudioThread->ActiveVoiceCount, pAudioThread->ActiveVoiceCountMax,
            pDiskThread->ActiveStreamCount, pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
      fflush(stdout);
      usleep(500000);
    }

    return EXIT_SUCCESS;
}

void signal_handler(int signal) {
    if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {
        // stop all threads
        if (pAudioIO)      pAudioIO->Close();
        if (pMidiInThread) pMidiInThread->StopThread();
        if (pDiskThread)   pDiskThread->StopThread();

        // free all resources
        if (pMidiInThread) delete pMidiInThread;
        if (pAudioThread)  delete pAudioThread;
        if (pDiskThread)   delete pDiskThread;
        if (pGig)          delete pGig;
        if (pRIFF)         delete pRIFF;
        if (pAudioIO)      delete pAudioIO;

        printf("LinuxSampler stopped due to SIGINT\n");
        exit(EXIT_SUCCESS);
    }
}

void parse_options(int argc, char **argv) {
    int res;
    int option_index = 0;
    static struct option long_options[] =
        {
            {"numfragments",1,0,0},
            {"fragmentsize",1,0,0},
            {"volume",1,0,0},
            {"dls",0,0,0},
            {"gig",0,0,0},
            {"instrument",1,0,0},
            {"inputclient",1,0,0},
            {"alsaout",1,0,0},
            {"jackout",1,0,0},
            {"samplerate",1,0,0},
            {"help",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: // --numfragments
                    num_fragments = atoi(optarg);
                    break;
                case 1: // --fragmentsize
                    fragmentsize = atoi(optarg);
                    break;
                case 2: // --volume
                    volume = atof(optarg);
                    break;
                case 3: // --dls
                    patch_format = patch_format_dls;
                    break;
                case 4: // --gig
                    patch_format = patch_format_gig;
                    break;
                case 5: // --instrument
                    instrument_index = atoi(optarg);
                    break;
                case 6: // --inputclient
                    input_client = optarg;
                    break;
                case 7: // --alsaout
                    alsaout = optarg;
                    use_jack = false; // If this option is specified do not connect to jack
                    break;
                case 8: { // --jackout
                    try {
                        String arg(optarg);
                        // remove outer apostrophes
                        arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1));
                        // split in two arguments
                        jack_playback[0] = arg.substr(0, arg.find("\' "));
                        jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2));
                        // remove inner apostrophes
                        jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\''));
                        jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\''));
                        // this is the default but set it up anyway in case alsa_card was also used.
                        use_jack = true;
                    }
                    catch (...) {
                        fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg);
                        exit(EXIT_FAILURE);
                    }
                    break;
                }
                case 9: // --samplerate
                    samplerate = atoi(optarg);
                    break;
                case 10: // --help
                    printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
                    printf("--gig              loads a Gigasampler instrument\n");
                    printf("--dls              loads a DLS instrument\n");
                    printf("--instrument       index of the instrument in the instrument file if it\n");
                    printf("                   contains more than one (default: 0)\n");
                    printf("--numfragments     sets the number of audio fragments\n");
                    printf("--fragmentsize     sets the fragment size\n");
                    printf("--volume           sets global volume gain factor (a value > 1.0 means\n");
                    printf("                   amplification, a value < 1.0 means attenuation,\n");
                    printf("                   default: 0.25)\n");
                    printf("--inputclient      connects to an Alsa sequencer input client on startup\n");
                    printf("                   (e.g. 64:0 to connect to a client with ID 64 and port 0)\n");
                    printf("--alsaout          connects to the given Alsa sound device on startup\n");
                    printf("                   (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n");
                    printf("--jackout          connects to the given Jack playback ports on startup\n");
                    printf("                   (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n");
                    printf("                   in case of stereo output)\n");
                    printf("--samplerate       sets sample rate if supported by audio output system\n");
                    printf("                   (e.g. 44100)\n");
                    exit(EXIT_SUCCESS);
                    break;
            }
        }
    }
}
1	schoenebeck	9	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003 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 <stdio.h>
24			#include <stdlib.h>
25			#include <unistd.h>
26			#include <getopt.h>
27			#include <signal.h>
28	schoenebeck	13	#include <pthread.h>
29	schoenebeck	9
30			#include "global.h"
31			#include "diskthread.h"
32			#include "audiothread.h"
33	schoenebeck	31	#include "alsaio.h"
34			#include "jackio.h"
35	schoenebeck	9	#include "midiin.h"
36			#include "stream.h"
37			#include "RIFF.h"
38			#include "gig.h"
39
40			#define AUDIO_CHANNELS 2 // stereo
41			#define AUDIO_FRAGMENTS 3 // 3 fragments, if it does not work set it to 2
42			#define AUDIO_FRAGMENTSIZE 512 // each fragment has 512 frames
43			#define AUDIO_SAMPLERATE 44100 // Hz
44
45			enum patch_format_t {
46			patch_format_unknown,
47			patch_format_gig,
48			patch_format_dls
49			} patch_format;
50
51			AudioIO* pAudioIO;
52			DiskThread* pDiskThread;
53			AudioThread* pAudioThread;
54			MidiIn* pMidiInThread;
55			RIFF::File* pRIFF;
56			gig::File* pGig;
57			gig::Instrument* pInstrument;
58	schoenebeck	20	uint instrument_index;
59			double volume;
60	schoenebeck	12	int num_fragments;
61			int fragmentsize;
62	schoenebeck	33	String input_client;
63			String alsaout;
64			String jack_playback[2];
65			bool use_jack;
66	schoenebeck	13	pthread_t signalhandlerthread;
67	schoenebeck	33	uint samplerate;
68	schoenebeck	9
69			void parse_options(int argc, char **argv);
70			void signal_handler(int signal);
71
72			int main(int argc, char **argv) {
73			pAudioIO = NULL;
74			pRIFF = NULL;
75			pGig = NULL;
76
77			// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
78	schoenebeck	13	signalhandlerthread = pthread_self();
79	schoenebeck	9	signal(SIGINT, signal_handler);
80
81			patch_format = patch_format_unknown;
82	schoenebeck	20	instrument_index = 0;
83	schoenebeck	9	num_fragments = AUDIO_FRAGMENTS;
84			fragmentsize = AUDIO_FRAGMENTSIZE;
85	schoenebeck	20	volume = 0.25; // default volume
86	schoenebeck	33	alsaout = "0,0"; // default card
87			jack_playback[0] = "";
88			jack_playback[1] = "";
89			samplerate = AUDIO_SAMPLERATE;
90			use_jack = true;
91	schoenebeck	9
92			// parse and assign command line options
93			parse_options(argc, argv);
94
95			if (patch_format != patch_format_gig) {
96	schoenebeck	12	printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");
97	schoenebeck	20	printf("Use 'linuxsampler --help' to see all available options.\n");
98	schoenebeck	9	return EXIT_FAILURE;
99			}
100
101	schoenebeck	33	int error = 1;
102	schoenebeck	31	#if HAVE_JACK
103	schoenebeck	33	if (use_jack) {
104			dmsg(1,("Initializing audio output (Jack)..."));
105			pAudioIO = new JackIO();
106			error = ((JackIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, jack_playback);
107			if (error) dmsg(1,("Trying Alsa output instead.\n"));
108			}
109			#endif // HAVE_JACK
110	schoenebeck	31	if (error) {
111			dmsg(1,("Initializing audio output (Alsa)..."));
112			pAudioIO = new AlsaIO();
113	schoenebeck	33	int error = ((AlsaIO*)pAudioIO)->Initialize(AUDIO_CHANNELS, samplerate, num_fragments, fragmentsize, alsaout);
114	schoenebeck	31	if (error) return EXIT_FAILURE;
115			}
116			dmsg(1,("OK\n"));
117	schoenebeck	9
118			// Loading gig file
119			try {
120			printf("Loading gig file...");
121			fflush(stdout);
122			pRIFF = new RIFF::File(argv[argc - 1]);
123			pGig = new gig::File(pRIFF);
124	schoenebeck	20	pInstrument = pGig->GetInstrument(instrument_index);
125			if (!pInstrument) {
126			printf("there's no instrument with index %d.\n", instrument_index);
127			exit(EXIT_FAILURE);
128			}
129	schoenebeck	9	pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part
130			printf("OK\n");
131			fflush(stdout);
132			}
133			catch (RIFF::Exception e) {
134			e.PrintMessage();
135			return EXIT_FAILURE;
136			}
137			catch (...) {
138			printf("Unknown exception while trying to parse gig file.\n");
139			return EXIT_FAILURE;
140			}
141
142	schoenebeck	31	DiskThread* pDiskThread = new DiskThread(((pAudioIO->MaxSamplesPerCycle() << MAX_PITCH) << 1) + 6); //FIXME: assuming stereo
143	schoenebeck	9	AudioThread* pAudioThread = new AudioThread(pAudioIO, pDiskThread, pInstrument);
144			MidiIn* pMidiInThread = new MidiIn(pAudioThread);
145
146	schoenebeck	12	dmsg(1,("Starting disk thread..."));
147	schoenebeck	9	pDiskThread->StartThread();
148	schoenebeck	12	dmsg(1,("OK\n"));
149			dmsg(1,("Starting MIDI in thread..."));
150	schoenebeck	20	if (input_client.size() > 0) pMidiInThread->SubscribeToClient(input_client.c_str());
151	schoenebeck	9	pMidiInThread->StartThread();
152	schoenebeck	12	dmsg(1,("OK\n"));
153	schoenebeck	9
154			sleep(1);
155	schoenebeck	12	dmsg(1,("Starting audio thread..."));
156	schoenebeck	20	pAudioThread->Volume = volume;
157	schoenebeck	31	pAudioIO->AssignEngine(pAudioThread);
158			pAudioIO->Activate();
159	schoenebeck	12	dmsg(1,("OK\n"));
160	schoenebeck	9
161			printf("LinuxSampler initialization completed.\n");
162
163	senoner	10	while(true) {
164	schoenebeck	13	printf("Voices: %3.3d (Max: %3.3d) Streams: %3.3d (Max: %3.3d, Unused: %3.3d)\r",
165			pAudioThread->ActiveVoiceCount, pAudioThread->ActiveVoiceCountMax,
166			pDiskThread->ActiveStreamCount, pDiskThread->ActiveStreamCountMax, Stream::GetUnusedStreams());
167			fflush(stdout);
168	senoner	10	usleep(500000);
169			}
170
171	schoenebeck	9	return EXIT_SUCCESS;
172			}
173
174			void signal_handler(int signal) {
175	schoenebeck	20	if (pthread_equal(pthread_self(), signalhandlerthread) && signal == SIGINT) {
176	schoenebeck	9	// stop all threads
177	schoenebeck	31	if (pAudioIO) pAudioIO->Close();
178	schoenebeck	9	if (pMidiInThread) pMidiInThread->StopThread();
179			if (pDiskThread) pDiskThread->StopThread();
180
181			// free all resources
182			if (pMidiInThread) delete pMidiInThread;
183			if (pAudioThread) delete pAudioThread;
184			if (pDiskThread) delete pDiskThread;
185			if (pGig) delete pGig;
186			if (pRIFF) delete pRIFF;
187			if (pAudioIO) delete pAudioIO;
188
189			printf("LinuxSampler stopped due to SIGINT\n");
190			exit(EXIT_SUCCESS);
191			}
192			}
193
194			void parse_options(int argc, char **argv) {
195			int res;
196			int option_index = 0;
197			static struct option long_options[] =
198			{
199			{"numfragments",1,0,0},
200			{"fragmentsize",1,0,0},
201	schoenebeck	20	{"volume",1,0,0},
202	schoenebeck	9	{"dls",0,0,0},
203			{"gig",0,0,0},
204	schoenebeck	20	{"instrument",1,0,0},
205			{"inputclient",1,0,0},
206	schoenebeck	33	{"alsaout",1,0,0},
207			{"jackout",1,0,0},
208			{"samplerate",1,0,0},
209	schoenebeck	9	{"help",0,0,0},
210			{0,0,0,0}
211			};
212
213			while (true) {
214			res = getopt_long_only(argc, argv, "", long_options, &option_index);
215			if(res == -1) break;
216			if (res == 0) {
217			switch(option_index) {
218	schoenebeck	33	case 0: // --numfragments
219	schoenebeck	9	num_fragments = atoi(optarg);
220			break;
221	schoenebeck	33	case 1: // --fragmentsize
222	schoenebeck	9	fragmentsize = atoi(optarg);
223			break;
224	schoenebeck	33	case 2: // --volume
225	schoenebeck	20	volume = atof(optarg);
226			break;
227	schoenebeck	33	case 3: // --dls
228	schoenebeck	9	patch_format = patch_format_dls;
229			break;
230	schoenebeck	33	case 4: // --gig
231	schoenebeck	9	patch_format = patch_format_gig;
232			break;
233	schoenebeck	33	case 5: // --instrument
234	schoenebeck	20	instrument_index = atoi(optarg);
235			break;
236	schoenebeck	33	case 6: // --inputclient
237	schoenebeck	20	input_client = optarg;
238			break;
239	schoenebeck	33	case 7: // --alsaout
240			alsaout = optarg;
241			use_jack = false; // If this option is specified do not connect to jack
242			break;
243			case 8: { // --jackout
244			try {
245			String arg(optarg);
246			// remove outer apostrophes
247			arg = arg.substr(arg.find('\'') + 1, arg.rfind('\'') - (arg.find('\'') + 1));
248			// split in two arguments
249			jack_playback[0] = arg.substr(0, arg.find("\' "));
250			jack_playback[1] = arg.substr(arg.find("\' ") + 2, arg.size() - (arg.find("\' ") + 2));
251			// remove inner apostrophes
252			jack_playback[0] = jack_playback[0].substr(0, jack_playback[0].find('\''));
253			jack_playback[1] = jack_playback[1].substr(jack_playback[1].find('\'') + 1, jack_playback[1].size() - jack_playback[1].find('\''));
254			// this is the default but set it up anyway in case alsa_card was also used.
255			use_jack = true;
256			}
257			catch (...) {
258			fprintf(stderr, "Invalid argument '%s' for parameter --jackout\n", optarg);
259			exit(EXIT_FAILURE);
260			}
261			break;
262			}
263			case 9: // --samplerate
264			samplerate = atoi(optarg);
265			break;
266			case 10: // --help
267	schoenebeck	9	printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
268	schoenebeck	20	printf("--gig loads a Gigasampler instrument\n");
269			printf("--dls loads a DLS instrument\n");
270			printf("--instrument index of the instrument in the instrument file if it\n");
271			printf(" contains more than one (default: 0)\n");
272	schoenebeck	9	printf("--numfragments sets the number of audio fragments\n");
273			printf("--fragmentsize sets the fragment size\n");
274	schoenebeck	20	printf("--volume sets global volume gain factor (a value > 1.0 means\n");
275			printf(" amplification, a value < 1.0 means attenuation,\n");
276			printf(" default: 0.25)\n");
277			printf("--inputclient connects to an Alsa sequencer input client on startup\n");
278			printf(" (e.g. 64:0 to connect to a client with ID 64 and port 0)\n");
279	schoenebeck	33	printf("--alsaout connects to the given Alsa sound device on startup\n");
280			printf(" (e.g. 0,0 to connect to hw:0,0 or plughw:0,0)\n");
281			printf("--jackout connects to the given Jack playback ports on startup\n");
282			printf(" (e.g. \"\'alsa_pcm:playback_1\' \'alsa_pcm:playback_2\'\"\n");
283			printf(" in case of stereo output)\n");
284			printf("--samplerate sets sample rate if supported by audio output system\n");
285			printf(" (e.g. 44100)\n");
286			exit(EXIT_SUCCESS);
287	schoenebeck	9	break;
288			}
289			}
290			}
291			}