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Diffstat (limited to 'desiredata/src/s_midi_alsa.c')
-rw-r--r--desiredata/src/s_midi_alsa.c201
1 files changed, 0 insertions, 201 deletions
diff --git a/desiredata/src/s_midi_alsa.c b/desiredata/src/s_midi_alsa.c
deleted file mode 100644
index d4becccc..00000000
--- a/desiredata/src/s_midi_alsa.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/* Copyright (c) 1997-1999 Guenter Geiger, Miller Puckette, Larry Troxler,
-* Winfried Ritsch, Karl MacMillan, and others.
-* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
-
-/* MIDI I/O for Linux using ALSA */
-
-#include <stdio.h>
-#ifdef UNISTD
-#include <unistd.h>
-#endif
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <alsa/asoundlib.h>
-#include "desire.h"
-using namespace desire;
-
-#define MAX_EVENT_SIZE 256
-
-static int alsa_nmidiin;
-static int alsa_midiinfd[MAXMIDIINDEV];
-static int alsa_nmidiout;
-static int alsa_midioutfd[MAXMIDIOUTDEV];
-static snd_seq_t *midi_handle;
-static snd_midi_event_t *midiev;
-
-static unsigned short CombineBytes(unsigned char First, unsigned char Second) {
- return ((unsigned short)Second << 7) | (unsigned short)First;
-}
-
-void sys_alsa_do_open_midi(int nmidiin, int *midiinvec, int nmidiout, int *midioutvec) {
- char portname[50];
- int err = 0;
- snd_seq_client_info_t *alsainfo;
- /* do we want to connect pd automatically with other devices ?; see below! */
- /* LATER: think about a flag to enable/disable automatic connection (sometimes it could be a pain) */
- int autoconnect = 1;
- alsa_nmidiin = 0;
- alsa_nmidiout = 0;
- if (nmidiout == 0 && nmidiin == 0) return;
- if (nmidiin>MAXMIDIINDEV) {post( "midi input ports reduced to maximum %d", MAXMIDIINDEV); nmidiin =MAXMIDIINDEV;}
- if (nmidiout>MAXMIDIOUTDEV) {post("midi output ports reduced to maximum %d", MAXMIDIOUTDEV); nmidiout=MAXMIDIOUTDEV;}
- if (nmidiin>0 && nmidiout>0) err = snd_seq_open(&midi_handle,"default",SND_SEQ_OPEN_DUPLEX,0);
- else if (nmidiin > 0) err = snd_seq_open(&midi_handle,"default",SND_SEQ_OPEN_INPUT,0);
- else if (nmidiout > 0) err = snd_seq_open(&midi_handle,"default",SND_SEQ_OPEN_OUTPUT,0);
- if (err!=0) {
- sys_setalarm(1000000);
- post("couldn't open alsa sequencer");
- return;
- }
- int client;
- for (int i=0; i<nmidiin; i++) {
- sprintf(portname,"Pure Data Midi-In %d",i+1);
- int port = snd_seq_create_simple_port(midi_handle,portname,
- SND_SEQ_PORT_CAP_WRITE |SND_SEQ_PORT_CAP_SUBS_WRITE, SND_SEQ_PORT_TYPE_APPLICATION);
- if (port < 0) goto error;
- alsa_midiinfd[i] = port;
- }
- for (int i=0; i<nmidiout; i++) {
- sprintf(portname,"Pure Data Midi-Out %d",i+1);
- int port = snd_seq_create_simple_port(midi_handle,portname,
- SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ, SND_SEQ_PORT_TYPE_APPLICATION);
- if (port < 0) goto error;
- alsa_midioutfd[i] = port;
- }
- snd_seq_client_info_malloc(&alsainfo);
- snd_seq_get_client_info(midi_handle,alsainfo);
- snd_seq_client_info_set_name(alsainfo,"Pure Data");
- client = snd_seq_client_info_get_client(alsainfo);
- snd_seq_set_client_info(midi_handle,alsainfo);
- snd_seq_client_info_free(alsainfo);
- post("Opened Alsa Client %d in:%d out:%d",client,nmidiin,nmidiout);
- sys_setalarm(0);
- snd_midi_event_new(MAX_EVENT_SIZE,&midiev);
- alsa_nmidiout = nmidiout;
- alsa_nmidiin = nmidiin;
- /* JMZ: connect all available devices to pd */
- if (autoconnect) {
- snd_seq_client_info_t *cinfo;
- snd_seq_port_info_t *pinfo;
- snd_seq_port_subscribe_t *subs;
- snd_seq_addr_t other, topd, frompd;
- /* since i don't know how to connect multiple ports (connect everything to each port, modulo,...),
- * i only fully connect where we have only one single port */
- if(alsa_nmidiin ) { topd.client = client; topd.port = alsa_midiinfd [0];}
- if(alsa_nmidiout) {frompd.client = client; frompd.port = alsa_midioutfd[0];}
- snd_seq_port_subscribe_alloca(&subs);
- snd_seq_client_info_alloca(&cinfo);
- snd_seq_port_info_alloca(&pinfo);
- snd_seq_client_info_set_client(cinfo, -1);
- while (snd_seq_query_next_client(midi_handle, cinfo) >= 0) {
- /* reset query info */
- int client_id=snd_seq_client_info_get_client(cinfo);
- if((SND_SEQ_CLIENT_SYSTEM != client_id)&&(client != client_id)) { /* skipping port 0 and ourself */
- snd_seq_port_info_set_client(pinfo, client_id);
- snd_seq_port_info_set_port(pinfo, -1);
- while (snd_seq_query_next_port(midi_handle, pinfo) >= 0) {
- other.client=client_id;
- other.port =snd_seq_port_info_get_port(pinfo);
- if(1==alsa_nmidiin) /* only autoconnect 1st port */ {
- snd_seq_port_subscribe_set_sender(subs, &other);
- snd_seq_port_subscribe_set_dest(subs, &topd);
- snd_seq_subscribe_port(midi_handle, subs);
- }
- if(1==alsa_nmidiout) /* only autoconnect 1st port */ {
- snd_seq_port_subscribe_set_sender(subs, &frompd);
- snd_seq_port_subscribe_set_dest(subs, &other);
- snd_seq_subscribe_port(midi_handle, subs);
- }
- }
- }
- }
- }
- return;
- error:
- sys_setalarm(1000000);
- post("couldn't open alsa MIDI output device");
- return;
-}
-
-void sys_alsa_putmidimess(int portno, int a, int b, int c) {
- int channel = a&15;
- snd_seq_event_t ev;
- snd_seq_ev_clear(&ev);
- if (portno >= 0 && portno < alsa_nmidiout) {
- if (a >= 224) snd_seq_ev_set_pitchbend(&ev,channel,CombineBytes(b,c));
- else if (a >= 208) snd_seq_ev_set_chanpress(&ev,channel,b); // touch
- else if (a >= 192) snd_seq_ev_set_pgmchange(&ev,channel,b);
- else if (a >= 176) snd_seq_ev_set_controller(&ev,channel,b,c);
- else if (a >= 160) snd_seq_ev_set_keypress(&ev,channel,b,c);// polytouch
- else if (a >= 144) { // note
- channel = a-144;
- if (c) snd_seq_ev_set_noteon(&ev,channel,b,c);
- else snd_seq_ev_set_noteoff(&ev,channel,b,c);
- }
- snd_seq_ev_set_direct(&ev);
- snd_seq_ev_set_subs(&ev);
- snd_seq_ev_set_source(&ev,alsa_midioutfd[portno]);
- snd_seq_event_output_direct(midi_handle,&ev);
- }
-}
-
-void sys_alsa_putmidibyte(int portno, int byte) {
- snd_seq_event_t ev;
- snd_seq_ev_clear(&ev);
- if (portno >= 0 && portno < alsa_nmidiout) {
- // repack into 1 byte char and put somewhere to point at
- unsigned char data = (unsigned char)byte;
- snd_seq_ev_set_sysex(&ev,1,&data); //...set_variable *should* have worked but didn't
- snd_seq_ev_set_direct(&ev);
- snd_seq_ev_set_subs(&ev);
- snd_seq_ev_set_source(&ev,alsa_midioutfd[portno]);
- snd_seq_event_output_direct(midi_handle,&ev);
- }
-}
-
-/* this version uses the asynchronous "read()" ... */
-void sys_alsa_poll_midi() {
- unsigned char buf[MAX_EVENT_SIZE];
- int count, alsa_source;
- snd_seq_event_t *midievent = NULL;
- if (alsa_nmidiout == 0 && alsa_nmidiin == 0) return;
- snd_midi_event_init(midiev);
- if (!alsa_nmidiout && !alsa_nmidiin) return;
- count = snd_seq_event_input_pending(midi_handle,1);
- if (count != 0) count = snd_seq_event_input(midi_handle,&midievent);
- if (midievent != NULL) {
- count = snd_midi_event_decode(midiev,buf,sizeof(buf),midievent);
- alsa_source = midievent->dest.port;
- for(int i=0; i<count; i++) sys_midibytein(alsa_source, (buf[i] & 0xff));
- //post("received %d midi bytes",count);
- }
-}
-
-void sys_alsa_close_midi() {
- alsa_nmidiin = alsa_nmidiout = 0;
- if(midi_handle) {
- snd_seq_close(midi_handle);
- if(midiev) snd_midi_event_free(midiev);
- }
-}
-
-#define NSEARCH 10
-static int alsa_nmidiindevs, alsa_nmidioutdevs, alsa_initted;
-
-void midi_alsa_init() {
- if (alsa_initted) return;
- alsa_initted = 1;
-}
-
-void midi_alsa_getdevs(char *indevlist, int *nindevs, char *outdevlist, int *noutdevs, int maxndev, int devdescsize) {
- int ndev = min(maxndev,alsa_nmidiindevs);
- for (int i=0; i<ndev; i++) sprintf(indevlist + i * devdescsize, "ALSA MIDI device #%d", i+1);
- *nindevs = ndev;
- ndev = min(maxndev,alsa_nmidioutdevs);
- for (int i=0; i<ndev; i++) sprintf(outdevlist + i * devdescsize, "ALSA MIDI device #%d", i+1);
- *noutdevs = ndev;
-}
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