Add missing files

git-svn-id: http://subversion.jackaudio.org/jack/jack2/trunk/jackmp@1761 0c269be4-1314-0410-8aa9-9f06e86f4224

linux/alsa/midi_pack.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2006,2007 Dmitry S. Baikov
+ *
+ *  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
+ */
+
+#ifndef __jack_midi_pack_h__
+#define __jack_midi_pack_h__
+
+typedef struct {
+	int running_status;
+} midi_pack_t;
+
+static inline
+void midi_pack_reset(midi_pack_t *p)
+{
+	p->running_status = 0;
+}
+
+static
+void midi_pack_event(midi_pack_t *p, jack_midi_event_t *e)
+{
+	if (e->buffer[0] >= 0x80 && e->buffer[0] < 0xF0) { // Voice Message
+		if (e->buffer[0] == p->running_status) {
+			e->buffer++;
+			e->size--;
+		} else
+			p->running_status = e->buffer[0];
+	} else if (e->buffer[0] < 0xF8) { // not System Realtime
+		p->running_status = 0;
+	}
+}
+
+#endif /* __jack_midi_pack_h__ */

linux/alsa/midi_unpack.h

@@ -0,0 +1,139 @@
+/*
+ * Copyright (c) 2006,2007 Dmitry S. Baikov
+ *
+ *  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
+ */
+
+#ifndef __jack_midi_unpack_h__
+#define __jack_midi_unpack_h__
+
+enum {
+	MIDI_UNPACK_MAX_MSG = 1024
+};
+
+typedef struct {
+	int pos, need, size;
+	unsigned char data[MIDI_UNPACK_MAX_MSG];
+} midi_unpack_t;
+
+static inline
+void midi_unpack_init(midi_unpack_t *u)
+{
+	u->pos = 0;
+	u->size = sizeof(u->data);
+	u->need = u->size;
+}
+
+static inline
+void midi_unpack_reset(midi_unpack_t *u)
+{
+	u->pos = 0;
+	u->need = u->size;
+}
+
+static const unsigned char midi_voice_len[] = {
+	3, /*0x80 Note Off*/
+	3, /*0x90 Note On*/
+	3, /*0xA0 Aftertouch*/
+	3, /*0xB0 Control Change*/
+	2, /*0xC0 Program Change*/
+	2, /*0xD0 Channel Pressure*/
+	3, /*0xE0 Pitch Wheel*/
+	1  /*0xF0 System*/
+};
+
+static const unsigned char midi_system_len[] = {
+	0, /*0xF0 System Exclusive Start*/
+	2, /*0xF1 MTC Quarter Frame*/
+	3, /*0xF2 Song Postion*/
+	2, /*0xF3 Song Select*/
+	0, /*0xF4 undefined*/
+	0, /*0xF5 undefined*/
+	1, /*0xF6 Tune Request*/
+	1  /*0xF7 System Exlusive End*/
+};
+
+static
+int midi_unpack_buf(midi_unpack_t *buf, const unsigned char *data, int len, void *jack_port_buf, jack_nframes_t time)
+{
+	int i;
+	for (i=0; i<len; ++i)
+	{
+		const unsigned char byte = data[i];
+		if (byte >= 0xF8) // system realtime
+		{
+			jack_midi_event_write(jack_port_buf, time, &data[i], 1, 0);
+			//printf("midi_unpack: written system relatime event\n");
+			//midi_input_write(in, &data[i], 1);
+		}
+		else if (byte < 0x80) // data
+		{
+			assert (buf->pos < buf->size);
+			buf->data[buf->pos++] = byte;
+		}
+		else if (byte < 0xF0) // voice
+		{
+			assert (byte >= 0x80 && byte < 0xF0);
+			//buf->need = ((byte|0x0F) == 0xCF || (byte|0x0F)==0xDF) ? 2 : 3;
+			buf->need = midi_voice_len[(byte-0x80)>>4];
+			buf->data[0] = byte;
+			buf->pos = 1;
+		}
+		else if (byte == 0xF7) // sysex end
+		{
+			assert (buf->pos < buf->size);
+			buf->data[buf->pos++] = byte;
+			buf->need = buf->pos;
+		}
+		else
+		{
+			assert (byte >= 0xF0 && byte < 0xF8);
+			buf->pos = 1;
+			buf->data[0] = byte;
+			buf->need = midi_system_len[byte - 0xF0];
+			if (!buf->need)
+				buf->need = buf->size;
+		}
+		if (buf->pos == buf->need)
+		{
+			// TODO: deal with big sysex'es (they are silently dropped for now)
+			if (buf->data[0] >= 0x80 || (buf->data[0]==0xF0 && buf->data[buf->pos-1] == 0xF7)) {
+				/* convert Note On with velocity 0 to Note Off */
+				if ((buf->data[0] & 0xF0) == 0x90 && buf->data[2] == 0) {
+					// we use temp array here to keep running status sync
+					jack_midi_data_t temp[3] = { 0x80, 0, 0x40 };
+					temp[0] |= buf->data[0] & 0x0F;
+					temp[1] = buf->data[1];
+					jack_midi_event_write(jack_port_buf, time, temp, 3, 0);
+				} else
+					jack_midi_event_write(jack_port_buf, time, &buf->data[0], buf->pos, 0);
+				//printf("midi_unpack: written %d-byte event\n", buf->pos);
+				//midi_input_write(in, &buf->data[0], buf->pos);
+			}
+			/* keep running status */
+			if (buf->data[0] >= 0x80 && buf->data[0] < 0xF0)
+				buf->pos = 1;
+			else
+			{
+				buf->pos = 0;
+				buf->need = buf->size;
+			}
+		}
+	}
+	assert (i==len);
+	return i;
+}
+
+#endif /* __jack_midi_unpack_h__ */