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Diffstat (limited to 'muse_qt4_evolution/synti/mus/mus.cpp')
| -rw-r--r-- | muse_qt4_evolution/synti/mus/mus.cpp | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/muse_qt4_evolution/synti/mus/mus.cpp b/muse_qt4_evolution/synti/mus/mus.cpp new file mode 100644 index 00000000..a112b450 --- /dev/null +++ b/muse_qt4_evolution/synti/mus/mus.cpp @@ -0,0 +1,276 @@ +//============================================================================= +// MusE +// Linux Music Editor +// $Id:$ +// +// Copyright (C) 2002-2006 by Werner Schweer and others +// +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License version 2. +// +// 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., 675 Mass Ave, Cambridge, MA 02139, USA. +//============================================================================= + +#include "all.h" +#include <stdio.h> +#include <getopt.h> +#include <dlfcn.h> + +#include "config.h" +#include "libsynti/mess.h" +#include "jackaudio.h" +#include <jack/midiport.h> + +static const char* versionString = "1.0"; +static bool debug = false; + +static int sampleRate; +static int segmentSize; + +static Mess* mess; +static const int MAX_OUTPORTS = 8; +static jack_port_t* inPort; +static jack_port_t* outPorts[MAX_OUTPORTS]; +static float* outBuffer[MAX_OUTPORTS]; + +//--------------------------------------------------------- +// processAudio +// JACK callback +//--------------------------------------------------------- + +static int processAudio(jack_nframes_t nFrames, void*) + { + int nch = mess->channels(); + for (int i = 0; i < nch; ++i) { + outBuffer[i] = (float*)jack_port_get_buffer(outPorts[i], nFrames); +#ifdef JACK107 + jack_midi_clear_buffer(outBuffer[i]); +#endif +#ifdef JACK103 + jack_midi_clear_buffer(outBuffer[i], nFrames); +#endif + // memset(outBuffer[i], 0, sizeof(float) * nFrames); + } + while(mess->eventsPending()) + mess->processEvent(mess->receiveEvent()); + + void* midi = jack_port_get_buffer(inPort, nFrames); +#ifdef JACK107 + int n = jack_midi_get_event_count(midi); +#endif +#ifdef JACK103 + int n = jack_midi_get_event_count(midi, nFrames); +#endif + unsigned offset = 0; + + for (int i = 0; i < n; ++i) { + jack_midi_event_t event; + +#ifdef JACK107 + jack_midi_event_get(&event, midi, i); +#endif +#ifdef JACK103 + jack_midi_event_get(&event, midi, i, nFrames); +#endif + mess->process(outBuffer, offset, event.time - offset); + offset = event.time; + MidiEvent e; + e.setType(event.buffer[0] & 0xf0); + e.setChannel(event.buffer[0] & 0xf); + e.setA(event.buffer[1]); + e.setB(event.buffer[2]); + mess->processEvent(e); + } + if (offset < nFrames) + mess->process(outBuffer, offset, nFrames - offset); + return 0; + } + +//--------------------------------------------------------- +// jackError +//--------------------------------------------------------- + +static void jackError(const char* s) + { + fprintf(stderr, "JACK ERROR: %s\n", s); + } + +//--------------------------------------------------------- +// noJackError +//--------------------------------------------------------- + +static void noJackError(const char* /* s */) + { + } + +//--------------------------------------------------------- +// printVersion +//--------------------------------------------------------- + +static void printVersion(const char* programName) + { + printf("%s: Version %s\n", programName, versionString); + } + +//--------------------------------------------------------- +// usage +//--------------------------------------------------------- + +static void usage(const char* programName) + { + fprintf(stderr, "%s: usage <options> MusE-synthesizer-plugin-name\n" + " options: -v print version\n" + " -d debug mode on\n", + programName + ); + } + +//--------------------------------------------------------- +// main +//--------------------------------------------------------- + +int main(int argc, char* argv[]) + { + new QApplication(argc, argv); + int c; + while ((c = getopt(argc, argv, "vd")) != EOF) { + switch (c) { + case 'v': + printVersion(argv[0]); + return 0; + case 'd': + debug = true; + break; + default: + usage(argv[0]); + return -1; + } + } + argc -= optind; + if (argc != 1) { + usage(argv[0]); + return -1; + } + // + // load synthesizer plugin + // + QDir pluginDir(INSTPREFIX "/lib/" INSTALL_NAME "/synthi"); + if (!pluginDir.exists()) { + fprintf(stderr, "plugin directory <%s> not found\n", + pluginDir.path().toLocal8Bit().data()); + return -2; + } + QString pluginName(argv[1]); + if (!pluginName.endsWith(".so", Qt::CaseInsensitive)) + pluginName += ".so"; + if (!pluginDir.exists(pluginName)) { + fprintf(stderr, "plugin <%s> in directory <%s> not found\n", + pluginName.toLocal8Bit().data(), + pluginDir.path().toLocal8Bit().data()); + return -3; + } + QString path = pluginDir.filePath(pluginName); + void* handle = dlopen(path.toLocal8Bit().data(), RTLD_LAZY); + if (handle == 0) { + fprintf(stderr, "%s: dlopen(%s) failed: %s\n", + argv[0], path.toLocal8Bit().data(), dlerror()); + return -4; + } + typedef const MESS* (*MESS_Function)(); + MESS_Function msynth = (MESS_Function)dlsym(handle, "mess_descriptor"); + if (!msynth) { + fprintf(stderr, + "%s: Unable to find msynth_descriptor() function in plugin\n" + "Are you sure this is a MESS plugin file?\n%s", + argv[0], dlerror()); + return -5; + } + const MESS* descr = msynth(); + if (descr == 0) { + fprintf(stderr, "%s: instantiate: no MESS descr found\n", + argv[0]); + return 6; + } + // + // initialize JACK + // + if (debug) { + fprintf(stderr, "init JACK audio\n"); + jack_set_error_function(jackError); + } + else + jack_set_error_function(noJackError); + + jack_client_t* client; + int i = 0; + QString instanceName; + QString s(pluginName.left(pluginName.size()-3)); + s += "-%1"; + static const int MAX_INSTANCES = 100; + for (i = 0; i < MAX_INSTANCES; ++i) { + instanceName = s.arg(i); + const char* jackIdString = strdup(instanceName.toLocal8Bit().data()); + client = jack_client_new(jackIdString); + if (client) + break; + } + if (i == MAX_INSTANCES) { + fprintf(stderr, "%s: too many instances of the synth! (>%d)\n", + argv[0], MAX_INSTANCES); + return -7; + } + jack_set_error_function(jackError); + if (debug) + fprintf(stderr, "init Jack Audio: register device\n"); + // jackAudio = new JackAudio(client, jackIdString); + if (debug) + fprintf(stderr, "init Jack Audio: register client\n"); + + jack_set_process_callback(client, processAudio, 0); +// jack_set_sync_callback(_client, processSync, 0); +// jack_on_shutdown(_client, processShutdown, 0); +// jack_set_buffer_size_callback(_client, bufsize_callback, 0); +// jack_set_sample_rate_callback(_client, srate_callback, 0); +// jack_set_port_registration_callback(_client, registration_callback, 0); +// jack_set_graph_order_callback(_client, graph_callback, 0); +// jack_set_freewheel_callback (_client, freewheel_callback, 0); +// jack_set_timebase_callback(_client, 0, timebase_callback, 0); + + sampleRate = jack_get_sample_rate(client); + segmentSize = jack_get_buffer_size(client); + // + // instantiate Synthesizer + // + mess = descr->instantiate(sampleRate, instanceName.toLocal8Bit().data()); + if (mess == 0) { + fprintf(stderr, "%s: instantiate failed\n", + argv[0]); + } + + int channels = mess->channels(); + if (channels > MAX_OUTPORTS) { + channels = MAX_OUTPORTS; + fprintf(stderr, "%s: too many outports %d > %d\n", + argv[0], channels, MAX_OUTPORTS); + } + for (int i = 0; i < channels; ++i) { + char portName[64]; + snprintf(portName, 64, "audioOut-%d", i); + outPorts[i] = jack_port_register(client, portName, + JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0); + } + inPort = jack_port_register(client, "midiIn", + JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0); + if (mess->hasGui()) + mess->showGui(true); + jack_activate(client); + qApp->exec(); + } + |