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 "global.h"
#include "audioio.h"
#include "diskthread.h"
#include "audiothread.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;
int              num_fragments;
int              fragmentsize;

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>)
    signal(SIGINT, signal_handler);

    patch_format      = patch_format_unknown;
    num_fragments     = AUDIO_FRAGMENTS;
    fragmentsize      = AUDIO_FRAGMENTSIZE;

    // 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");
        return EXIT_FAILURE;
    }

    dmsg(1,("Initializing audio output..."));
    pAudioIO = new AudioIO();
    int error = pAudioIO->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);
    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->GetFirstInstrument();
        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->FragmentSize << MAX_PITCH) << 1) + 3); //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..."));
    pMidiInThread->StartThread();
    dmsg(1,("OK\n"));

    sleep(1);
    dmsg(1,("Starting audio thread..."));
    pAudioThread->StartThread();
    dmsg(1,("OK\n"));

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

    while(true)  {
      printf("Voices: %3.3d  Streams: %3.3d  \r",pAudioThread->ActiveVoiceCount, pDiskThread->ActiveStreamCount); fflush(stdout);
      usleep(500000);
    }

    return EXIT_SUCCESS;
}

void signal_handler(int signal) {
    if (signal == SIGINT) {
        // stop all threads
        if (pMidiInThread) pMidiInThread->StopThread();
        if (pAudioThread)  pAudioThread->StopThread();
        if (pDiskThread)   pDiskThread->StopThread();

        sleep(1);

        // 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},
            {"dls",0,0,0},
            {"gig",0,0,0},
            {"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:
                    num_fragments = atoi(optarg);
                    break;
                case 1:
                    fragmentsize = atoi(optarg);
                    break;
                case 2:
                    patch_format = patch_format_dls;
                    break;
                case 3:
                    patch_format = patch_format_gig;
                    break;
                case 4:
                    printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
                    printf("--numfragments     sets the number of audio fragments\n");
                    printf("--fragmentsize     sets the fragment size\n");
                    printf("--dls              loads a DLS instrument\n");
                    printf("--gig              loads a Gigasampler instrument\n");
                    exit(0);
                    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
29			#include "global.h"
30			#include "audioio.h"
31			#include "diskthread.h"
32			#include "audiothread.h"
33			#include "midiin.h"
34			#include "stream.h"
35			#include "RIFF.h"
36			#include "gig.h"
37
38			#define AUDIO_CHANNELS 2 // stereo
39			#define AUDIO_FRAGMENTS 3 // 3 fragments, if it does not work set it to 2
40			#define AUDIO_FRAGMENTSIZE 512 // each fragment has 512 frames
41			#define AUDIO_SAMPLERATE 44100 // Hz
42
43			enum patch_format_t {
44			patch_format_unknown,
45			patch_format_gig,
46			patch_format_dls
47			} patch_format;
48
49			AudioIO* pAudioIO;
50			DiskThread* pDiskThread;
51			AudioThread* pAudioThread;
52			MidiIn* pMidiInThread;
53			RIFF::File* pRIFF;
54			gig::File* pGig;
55			gig::Instrument* pInstrument;
56	schoenebeck	12	int num_fragments;
57			int fragmentsize;
58	schoenebeck	9
59			void parse_options(int argc, char **argv);
60			void signal_handler(int signal);
61
62			int main(int argc, char **argv) {
63			pAudioIO = NULL;
64			pRIFF = NULL;
65			pGig = NULL;
66
67			// setting signal handler for catching SIGINT (thus e.g. <CTRL><C>)
68			signal(SIGINT, signal_handler);
69
70			patch_format = patch_format_unknown;
71			num_fragments = AUDIO_FRAGMENTS;
72			fragmentsize = AUDIO_FRAGMENTSIZE;
73
74			// parse and assign command line options
75			parse_options(argc, argv);
76
77			if (patch_format != patch_format_gig) {
78	schoenebeck	12	printf("Sorry only Gigasampler loading migrated in LinuxSampler so far, use --gig to load a .gig file!\n");
79	schoenebeck	9	return EXIT_FAILURE;
80			}
81
82	schoenebeck	12	dmsg(1,("Initializing audio output..."));
83	schoenebeck	9	pAudioIO = new AudioIO();
84			int error = pAudioIO->Initialize(AUDIO_CHANNELS, AUDIO_SAMPLERATE, num_fragments, fragmentsize);
85			if (error) return EXIT_FAILURE;
86	schoenebeck	12	dmsg(1,("OK\n"));
87	schoenebeck	9
88			// Loading gig file
89			try {
90			printf("Loading gig file...");
91			fflush(stdout);
92			pRIFF = new RIFF::File(argv[argc - 1]);
93			pGig = new gig::File(pRIFF);
94			pInstrument = pGig->GetFirstInstrument();
95			pGig->GetFirstSample(); // just to complete instrument loading before we enter the realtime part
96			printf("OK\n");
97			fflush(stdout);
98			}
99			catch (RIFF::Exception e) {
100			e.PrintMessage();
101			return EXIT_FAILURE;
102			}
103			catch (...) {
104			printf("Unknown exception while trying to parse gig file.\n");
105			return EXIT_FAILURE;
106			}
107
108			DiskThread* pDiskThread = new DiskThread(((pAudioIO->FragmentSize << MAX_PITCH) << 1) + 3); //FIXME: assuming stereo
109			AudioThread* pAudioThread = new AudioThread(pAudioIO, pDiskThread, pInstrument);
110			MidiIn* pMidiInThread = new MidiIn(pAudioThread);
111
112	schoenebeck	12	dmsg(1,("Starting disk thread..."));
113	schoenebeck	9	pDiskThread->StartThread();
114	schoenebeck	12	dmsg(1,("OK\n"));
115			dmsg(1,("Starting MIDI in thread..."));
116	schoenebeck	9	pMidiInThread->StartThread();
117	schoenebeck	12	dmsg(1,("OK\n"));
118	schoenebeck	9
119			sleep(1);
120	schoenebeck	12	dmsg(1,("Starting audio thread..."));
121	schoenebeck	9	pAudioThread->StartThread();
122	schoenebeck	12	dmsg(1,("OK\n"));
123	schoenebeck	9
124			printf("LinuxSampler initialization completed.\n");
125
126	senoner	10	while(true) {
127			printf("Voices: %3.3d Streams: %3.3d \r",pAudioThread->ActiveVoiceCount, pDiskThread->ActiveStreamCount); fflush(stdout);
128			usleep(500000);
129			}
130
131	schoenebeck	9	return EXIT_SUCCESS;
132			}
133
134			void signal_handler(int signal) {
135			if (signal == SIGINT) {
136			// stop all threads
137			if (pMidiInThread) pMidiInThread->StopThread();
138			if (pAudioThread) pAudioThread->StopThread();
139			if (pDiskThread) pDiskThread->StopThread();
140
141			sleep(1);
142
143			// free all resources
144			if (pMidiInThread) delete pMidiInThread;
145			if (pAudioThread) delete pAudioThread;
146			if (pDiskThread) delete pDiskThread;
147			if (pGig) delete pGig;
148			if (pRIFF) delete pRIFF;
149			if (pAudioIO) delete pAudioIO;
150
151			printf("LinuxSampler stopped due to SIGINT\n");
152			exit(EXIT_SUCCESS);
153			}
154			}
155
156			void parse_options(int argc, char **argv) {
157			int res;
158			int option_index = 0;
159			static struct option long_options[] =
160			{
161			{"numfragments",1,0,0},
162			{"fragmentsize",1,0,0},
163			{"dls",0,0,0},
164			{"gig",0,0,0},
165			{"help",0,0,0},
166			{0,0,0,0}
167			};
168
169			while (true) {
170			res = getopt_long_only(argc, argv, "", long_options, &option_index);
171			if(res == -1) break;
172			if (res == 0) {
173			switch(option_index) {
174			case 0:
175			num_fragments = atoi(optarg);
176			break;
177			case 1:
178			fragmentsize = atoi(optarg);
179			break;
180			case 2:
181			patch_format = patch_format_dls;
182			break;
183			case 3:
184			patch_format = patch_format_gig;
185			break;
186			case 4:
187			printf("usage: linuxsampler [OPTIONS] <INSTRUMENTFILE>\n\n");
188			printf("--numfragments sets the number of audio fragments\n");
189			printf("--fragmentsize sets the fragment size\n");
190			printf("--dls loads a DLS instrument\n");
191			printf("--gig loads a Gigasampler instrument\n");
192			exit(0);
193			break;
194			}
195			}
196			}
197			}