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authordeva <deva>2008-07-21 15:32:54 +0000
committerdeva <deva>2008-07-21 15:32:54 +0000
commit217a8a1aa8eba3611d5ba6abefb502fb041e13cb (patch)
treefe80b09f306e0c83d0e4a0eb5ef5f476183b5fbc /src
parent981cd50a83e67f5471ee1e1ad0c0575506f14da0 (diff)
Made midi mapper.
Diffstat (limited to 'src')
-rw-r--r--src/Makefile.am2
-rw-r--r--src/drumgizmo.cc4
-rw-r--r--src/jackclient.cc14
-rw-r--r--src/jackclient.h5
-rw-r--r--src/midimapper.cc56
-rw-r--r--src/midimapper.h44
6 files changed, 111 insertions, 14 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 7e7ebbe..472f5fe 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -8,9 +8,11 @@ drumgizmo_SOURCES = \
drumgizmo.cc \
event.cc \
jackclient.cc \
+ midimapper.cc \
sample.cc
EXTRA_DIST = \
jackclient.h \
event.h \
+ midimapper.h \
sample.h
diff --git a/src/drumgizmo.cc b/src/drumgizmo.cc
index f423bb0..936c231 100644
--- a/src/drumgizmo.cc
+++ b/src/drumgizmo.cc
@@ -47,7 +47,7 @@ int process(jack_nframes_t nframes, void *arg)
jack_midi_event_write(port_buf, time, all_notes_off, size);
timer = 0;
- next = (size_t)(((float)rand() / (float)RAND_MAX) * 0.3 * 44100);
+ next = (size_t)(((float)rand() / (float)RAND_MAX) * 0.2 * 44100);
}
timer += nframes;
@@ -83,7 +83,7 @@ int main(int argc, char *argv[])
client.activate();
- sendMidi();
+ // sendMidi();
while(1) sleep(1);
diff --git a/src/jackclient.cc b/src/jackclient.cc
index 0f3e254..ed2838e 100644
--- a/src/jackclient.cc
+++ b/src/jackclient.cc
@@ -121,21 +121,15 @@ int JackClient::process(jack_nframes_t nframes)
for(jack_nframes_t i = 0; i < midievents; i++) {
jack_midi_event_t midi_event;
jack_midi_event_get(&midi_event, midibuffer, i);
- /*
- // Parse midi event
- printf("[ Time: %d Size: %d ", midi_event.time, midi_event.size);
- for(size_t j = 0; j < midi_event.size; j++) {
- jack_midi_data_t m = midi_event.buffer[j];
- printf(" Data: %d ", m);
- }
- printf("]\n");
- */
+ int s = midimapper.map(midi_event);
+ if(s == -1) continue; // -1 is illigal node.
+
Ports::iterator pi = output_ports.begin();
while(pi != output_ports.end()) {
// Create trigger event
- Event event(*pi, sample[midi_event.buffer[0]], midi_event.time);
+ Event event(*pi, sample[s], midi_event.time);
events.insert(event);
pi++;
diff --git a/src/jackclient.h b/src/jackclient.h
index f1b6b72..b910323 100644
--- a/src/jackclient.h
+++ b/src/jackclient.h
@@ -34,8 +34,7 @@
#include "event.h"
#include "sample.h"
-
-#define TEST_MIDI
+#include "midimapper.h"
typedef std::vector< jack_port_t *> Ports;
@@ -65,6 +64,8 @@ private:
Sample *sample[2];
Events events;
+
+ MidiMapper midimapper;
};
#endif/*__DRUMGIZMO_JACKCLIENT_H__*/
diff --git a/src/midimapper.cc b/src/midimapper.cc
new file mode 100644
index 0000000..ed8c252
--- /dev/null
+++ b/src/midimapper.cc
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapper.cc
+ *
+ * Mon Jul 21 15:24:08 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 "midimapper.h"
+
+#define NOTE_ON 0x90
+
+MidiMapper::MidiMapper()
+{
+ for(int i = 0; i < 16; i++) _map[i] = i % 2;
+}
+
+//http://ccrma-www.stanford.edu/~craig/articles/linuxmidi/misc/essenmidi.html
+int MidiMapper::map(jack_midi_event_t event)
+{
+ // Parse midi event
+ printf("[ Time: %d Size: %d ", event.time, event.size);
+ for(size_t j = 0; j < event.size; j++) {
+ jack_midi_data_t m = event.buffer[j];
+ printf(" Data: %d ", m);
+ }
+ printf("]\n");
+
+ if(event.size == 3) return -1;
+ if(event.buffer[0] != NOTE_ON) return -1;
+
+ int key = event.buffer[1];
+ // int velocity = event.buffer[2];
+
+ if(_map.find(key) == _map.end()) return -1; // key is not in map.
+
+ return _map[key];
+}
diff --git a/src/midimapper.h b/src/midimapper.h
new file mode 100644
index 0000000..d0b6a72
--- /dev/null
+++ b/src/midimapper.h
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ * midimapper.h
+ *
+ * Mon Jul 21 15:24:07 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.
+ */
+#ifndef __DRUMGIZMO_MIDIMAPPER_H__
+#define __DRUMGIZMO_MIDIMAPPER_H__
+
+#include <jack/midiport.h>
+
+#include <map>
+
+class MidiMapper {
+public:
+ MidiMapper();
+
+ int map(jack_midi_event_t event);
+
+private:
+ std::map< int, int > _map;
+};
+
+#endif/*__DRUMGIZMO_MIDIMAPPER_H__*/