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Diffstat (limited to 'src/midiplayer.cc')
-rw-r--r-- | src/midiplayer.cc | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/src/midiplayer.cc b/src/midiplayer.cc new file mode 100644 index 0000000..d936eae --- /dev/null +++ b/src/midiplayer.cc @@ -0,0 +1,134 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * midiplayer.cc + * + * Sat Jul 26 15:23:19 CEST 2008 + * Copyright 2008 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo 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. + * + * DrumGizmo 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 DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "midiplayer.h" + +#define NOTE_ON 0x90 + +int _process(jack_nframes_t nframes, void *arg) +{ + return ((MidiPlayer*)arg)->process(nframes); +} + +MidiPlayer::MidiPlayer(char *filename) +{ + jack_status_t status; + + jack_client_t *jack_client = jack_client_open("MidiTest", JackNullOption, &status); + + port = jack_port_register(jack_client, + "midi_out", + JACK_DEFAULT_MIDI_TYPE, + JackPortIsOutput,// | JackPortIsTerminal, + 0); + + jack_set_process_callback(jack_client, _process, this); + + jack_activate(jack_client); + + jack_connect(jack_client, "MidiTest:midi_out", "DrumGizmo:midi_in"); + + jack_connect(jack_client, "DrumGizmo:Kick-R", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Kick-L", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:SnareTop", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:SnareBottom", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:SnareTrigger", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Tom1", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Tom2", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Tom3", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Tom4", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Ride", "system:playback_1"); + // jack_connect(jack_client, "DrumGizmo:Hihat", "system:playback_1"); + + jack_connect(jack_client, "DrumGizmo:Kick-R", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Kick-L", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:SnareTop", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:SnareBottom", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:SnareTrigger", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Tom1", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Tom2", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Tom3", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Tom4", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Ride", "system:playback_2"); + // jack_connect(jack_client, "DrumGizmo:Hihat", "system:playback_2"); + + jack_connect(jack_client, "DrumGizmo:OH-R", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:OH-L", "system:playback_2"); + jack_connect(jack_client, "DrumGizmo:Amb-R", "system:playback_1"); + jack_connect(jack_client, "DrumGizmo:Amb-L", "system:playback_2"); + + timer = 0; + next = 44100; +} + +MidiPlayer::~MidiPlayer() +{ +} + +#if 0 // All +#define NUM_INST 11 +static int inst[] = { 35, 36, 38, 46, 41, 43, 45, 47, 49, 57, 51 }; +#endif + +#if 1 // Cymbals +#define NUM_INST 3 +static int inst[] = { 51, 49, 57 }; +#endif + +#if 0 // Toms +#define NUM_INST 4 +static int inst[] = { 41, 43, 45, 47 }; +#endif + +#if 0 // Kicks +#define NUM_INST 2 +static int inst[] = { 35, 36 }; +#endif +int MidiPlayer::process(jack_nframes_t nframes) +{ + return 0; + + // if(jack_port_connected_to(test_midi_port, "DrumGizmo:midi_in")) { + void* port_buf = jack_port_get_buffer(port, nframes); + + if(timer > next) { // activate every second (44100 samples) + // printf("ding\n"); + + jack_nframes_t time = (jack_nframes_t)(((float)rand() / (float)RAND_MAX) * nframes); + size_t size = 3; + jack_midi_data_t note[] = { NOTE_ON, inst[rand() % NUM_INST], rand() % 127}; + jack_midi_event_write(port_buf, time, note, size); + + timer = 0; + next = (size_t)(((float)rand() / (float)RAND_MAX) * 0.2 * 44100); + } + + timer += nframes; + + return 0; +} + + |