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|
/* -*- Mode: C ; c-basic-offset: 2 -*- */
/*****************************************************************************
*
* This file is part of gmidimonitor
*
* Copyright (C) 2005,2006,2007,2008,2011 Nedko Arnaudov <nedko@arnaudov.name>
*
* 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; version 2 of the License
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*****************************************************************************/
#include <alsa/asoundlib.h>
#include <gtk/gtk.h>
#include <pthread.h>
#include "common.h"
#include "alsa.h"
#include "gm.h"
#include "sysex.h"
/* TODO: this must be detected at configure stage */
#define OLD_ALSA 0
extern GtkBuilder * g_builder;
snd_seq_t * g_seq_ptr;
pthread_t g_alsa_midi_tid; /* alsa_midi_thread id */
/* The ALSA MIDI input handling thread */
void *
alsa_midi_thread(void * context_ptr)
{
GtkTreeIter iter;
snd_seq_event_t * event_ptr;
GtkListStore * list_store_ptr;
GtkWidget * child_ptr;
GString * time_str_ptr;
GString * msg_str_ptr;
GString * channel_str_ptr;
const char * note_name;
int octave;
const char * drum_name;
const char * cc_name;
child_ptr = GTK_WIDGET (gtk_builder_get_object (g_builder, "list"));
list_store_ptr = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(child_ptr)));
while (snd_seq_event_input(g_seq_ptr, &event_ptr) >= 0)
{
if (g_midi_ignore)
continue;
time_str_ptr = g_string_new("");
g_string_sprintf(
time_str_ptr,
"%u:%u",
(unsigned int)event_ptr->time.time.tv_sec,
(unsigned int)event_ptr->time.time.tv_nsec);
channel_str_ptr = g_string_new("");
/* Workaround for compiler warnings... */
drum_name = NULL;
note_name = NULL;
octave = 0;
if (event_ptr->type == SND_SEQ_EVENT_NOTE ||
event_ptr->type == SND_SEQ_EVENT_NOTEON ||
event_ptr->type == SND_SEQ_EVENT_NOTEOFF ||
event_ptr->type == SND_SEQ_EVENT_KEYPRESS)
{
g_string_sprintf(
channel_str_ptr,
"%u",
(unsigned int)event_ptr->data.note.channel+1);
if (event_ptr->data.note.channel + 1 == 10)
{
drum_name = gm_get_drum_name(event_ptr->data.note.note);
}
else
{
drum_name = NULL;
}
note_name = g_note_names[event_ptr->data.note.note % 12];
octave = event_ptr->data.note.note / 12 - 1;
}
if (event_ptr->type == SND_SEQ_EVENT_CONTROLLER ||
event_ptr->type == SND_SEQ_EVENT_PGMCHANGE ||
event_ptr->type == SND_SEQ_EVENT_PITCHBEND)
{
g_string_sprintf(
channel_str_ptr,
"%u",
(unsigned int)event_ptr->data.control.channel+1);
}
msg_str_ptr = g_string_new("unknown event");
switch (event_ptr->type)
{
case SND_SEQ_EVENT_SYSTEM:
g_string_sprintf(msg_str_ptr, "System event");
break;
case SND_SEQ_EVENT_RESULT:
g_string_sprintf(msg_str_ptr, "Result status event");
break;
case SND_SEQ_EVENT_NOTE:
g_string_sprintf(msg_str_ptr, "Note");
break;
case SND_SEQ_EVENT_NOTEON:
if (event_ptr->data.note.velocity != 0)
{
if (drum_name != NULL)
{
g_string_sprintf(
msg_str_ptr,
"Drum: %s (%s, octave %d, velocity %u)",
drum_name,
note_name,
octave,
event_ptr->data.note.velocity);
}
else
{
g_string_sprintf(
msg_str_ptr,
"Note on, %s, octave %d, velocity %u",
note_name,
octave,
event_ptr->data.note.velocity);
}
break;
}
case SND_SEQ_EVENT_NOTEOFF:
if (drum_name != NULL) /* ignore note off for drums */
continue;
g_string_sprintf(
msg_str_ptr,
"Note off, %s, octave %d",
note_name,
octave);
break;
case SND_SEQ_EVENT_KEYPRESS:
g_string_sprintf(msg_str_ptr, "Key pressure change (aftertouch)");
break;
case SND_SEQ_EVENT_CONTROLLER:
cc_name = NULL;
switch (event_ptr->data.control.param)
{
case MIDI_CTL_MSB_BANK:
cc_name = "Bank selection";
break;
case MIDI_CTL_MSB_MODWHEEL:
cc_name = "Modulation";
break;
case MIDI_CTL_MSB_BREATH:
cc_name = "Breath";
break;
case MIDI_CTL_MSB_FOOT:
cc_name = "Foot";
break;
case MIDI_CTL_MSB_PORTAMENTO_TIME:
cc_name = "Portamento time";
break;
case MIDI_CTL_MSB_DATA_ENTRY:
cc_name = "Data entry";
break;
case MIDI_CTL_MSB_MAIN_VOLUME:
cc_name = "Main volume";
break;
case MIDI_CTL_MSB_BALANCE:
cc_name = "Balance";
break;
case MIDI_CTL_MSB_PAN:
cc_name = "Panpot";
break;
case MIDI_CTL_MSB_EXPRESSION:
cc_name = "Expression";
break;
case MIDI_CTL_MSB_EFFECT1:
cc_name = "Effect1";
break;
case MIDI_CTL_MSB_EFFECT2:
cc_name = "Effect2";
break;
case MIDI_CTL_MSB_GENERAL_PURPOSE1:
cc_name = "General purpose 1";
break;
case MIDI_CTL_MSB_GENERAL_PURPOSE2:
cc_name = "General purpose 2";
break;
case MIDI_CTL_MSB_GENERAL_PURPOSE3:
cc_name = "General purpose 3";
break;
case MIDI_CTL_MSB_GENERAL_PURPOSE4:
cc_name = "General purpose 4";
break;
case MIDI_CTL_LSB_BANK:
cc_name = "Bank selection";
break;
case MIDI_CTL_LSB_MODWHEEL:
cc_name = "Modulation";
break;
case MIDI_CTL_LSB_BREATH:
cc_name = "Breath";
break;
case MIDI_CTL_LSB_FOOT:
cc_name = "Foot";
break;
case MIDI_CTL_LSB_PORTAMENTO_TIME:
cc_name = "Portamento time";
break;
case MIDI_CTL_LSB_DATA_ENTRY:
cc_name = "Data entry";
break;
case MIDI_CTL_LSB_MAIN_VOLUME:
cc_name = "Main volume";
break;
case MIDI_CTL_LSB_BALANCE:
cc_name = "Balance";
break;
case MIDI_CTL_LSB_PAN:
cc_name = "Panpot";
break;
case MIDI_CTL_LSB_EXPRESSION:
cc_name = "Expression";
break;
case MIDI_CTL_LSB_EFFECT1:
cc_name = "Effect1";
break;
case MIDI_CTL_LSB_EFFECT2:
cc_name = "Effect2";
break;
case MIDI_CTL_LSB_GENERAL_PURPOSE1:
cc_name = "General purpose 1";
break;
case MIDI_CTL_LSB_GENERAL_PURPOSE2:
cc_name = "General purpose 2";
break;
case MIDI_CTL_LSB_GENERAL_PURPOSE3:
cc_name = "General purpose 3";
break;
case MIDI_CTL_LSB_GENERAL_PURPOSE4:
cc_name = "General purpose 4";
break;
case MIDI_CTL_SUSTAIN:
cc_name = "Sustain pedal";
break;
case MIDI_CTL_PORTAMENTO:
cc_name = "Portamento";
break;
case MIDI_CTL_SOSTENUTO:
cc_name = "Sostenuto";
break;
case MIDI_CTL_SOFT_PEDAL:
cc_name = "Soft pedal";
break;
case MIDI_CTL_LEGATO_FOOTSWITCH:
cc_name = "Legato foot switch";
break;
case MIDI_CTL_HOLD2:
cc_name = "Hold2";
break;
case MIDI_CTL_SC1_SOUND_VARIATION:
cc_name = "SC1 Sound Variation";
break;
case MIDI_CTL_SC2_TIMBRE:
cc_name = "SC2 Timbre";
break;
case MIDI_CTL_SC3_RELEASE_TIME:
cc_name = "SC3 Release Time";
break;
case MIDI_CTL_SC4_ATTACK_TIME:
cc_name = "SC4 Attack Time";
break;
case MIDI_CTL_SC5_BRIGHTNESS:
cc_name = "SC5 Brightness";
break;
case MIDI_CTL_SC6:
cc_name = "SC6";
break;
case MIDI_CTL_SC7:
cc_name = "SC7";
break;
case MIDI_CTL_SC8:
cc_name = "SC8";
break;
case MIDI_CTL_SC9:
cc_name = "SC9";
break;
case MIDI_CTL_SC10:
cc_name = "SC10";
break;
case MIDI_CTL_GENERAL_PURPOSE5:
cc_name = "General purpose 5";
break;
case MIDI_CTL_GENERAL_PURPOSE6:
cc_name = "General purpose 6";
break;
case MIDI_CTL_GENERAL_PURPOSE7:
cc_name = "General purpose 7";
break;
case MIDI_CTL_GENERAL_PURPOSE8:
cc_name = "General purpose 8";
break;
case MIDI_CTL_PORTAMENTO_CONTROL:
cc_name = "Portamento control";
break;
case MIDI_CTL_E1_REVERB_DEPTH:
cc_name = "E1 Reverb Depth";
break;
case MIDI_CTL_E2_TREMOLO_DEPTH:
cc_name = "E2 Tremolo Depth";
break;
case MIDI_CTL_E3_CHORUS_DEPTH:
cc_name = "E3 Chorus Depth";
break;
case MIDI_CTL_E4_DETUNE_DEPTH:
cc_name = "E4 Detune Depth";
break;
case MIDI_CTL_E5_PHASER_DEPTH:
cc_name = "E5 Phaser Depth";
break;
case MIDI_CTL_DATA_INCREMENT:
cc_name = "Data Increment";
break;
case MIDI_CTL_DATA_DECREMENT:
cc_name = "Data Decrement";
break;
case MIDI_CTL_NONREG_PARM_NUM_LSB:
cc_name = "Non-registered parameter number";
break;
case MIDI_CTL_NONREG_PARM_NUM_MSB:
cc_name = "Non-registered parameter number";
break;
case MIDI_CTL_REGIST_PARM_NUM_LSB:
cc_name = "Registered parameter number";
break;
case MIDI_CTL_REGIST_PARM_NUM_MSB:
cc_name = "Registered parameter number";
break;
case MIDI_CTL_ALL_SOUNDS_OFF:
cc_name = "All sounds off";
break;
case MIDI_CTL_RESET_CONTROLLERS:
cc_name = "Reset Controllers";
break;
case MIDI_CTL_LOCAL_CONTROL_SWITCH:
cc_name = "Local control switch";
break;
case MIDI_CTL_ALL_NOTES_OFF:
cc_name = "All notes off";
break;
case MIDI_CTL_OMNI_OFF:
cc_name = "Omni off";
break;
case MIDI_CTL_OMNI_ON:
cc_name = "Omni on";
break;
case MIDI_CTL_MONO1:
cc_name = "Mono1";
break;
case MIDI_CTL_MONO2:
cc_name = "Mono2";
break;
}
if (cc_name != NULL)
{
g_string_sprintf(
msg_str_ptr,
"CC %s (%u), value %u",
cc_name,
(unsigned int)event_ptr->data.control.param,
(unsigned int)event_ptr->data.control.value);
}
else
{
g_string_sprintf(
msg_str_ptr,
"CC %u, value %u",
(unsigned int)event_ptr->data.control.param,
(unsigned int)event_ptr->data.control.value);
}
break;
case SND_SEQ_EVENT_PGMCHANGE:
g_string_sprintf(
msg_str_ptr,
"Program change, %d (%s)",
(unsigned int)event_ptr->data.control.value,
event_ptr->data.control.value > 127 || event_ptr->data.control.value < 0 ? "???": gm_get_instrument_name(event_ptr->data.control.value));
break;
case SND_SEQ_EVENT_CHANPRESS:
g_string_sprintf(msg_str_ptr, "Channel pressure");
break;
case SND_SEQ_EVENT_PITCHBEND:
g_string_sprintf(
msg_str_ptr,
"Pitchwheel, %d",
(signed int)event_ptr->data.control.value);
break;
case SND_SEQ_EVENT_CONTROL14:
g_string_sprintf(msg_str_ptr, "14 bit controller value");
break;
case SND_SEQ_EVENT_NONREGPARAM:
g_string_sprintf(msg_str_ptr, "NRPN");
break;
case SND_SEQ_EVENT_REGPARAM:
g_string_sprintf(msg_str_ptr, "RPN");
break;
case SND_SEQ_EVENT_SONGPOS:
g_string_sprintf(msg_str_ptr, "Song position");
break;
case SND_SEQ_EVENT_SONGSEL:
g_string_sprintf(msg_str_ptr, "Song select");
break;
case SND_SEQ_EVENT_QFRAME:
g_string_sprintf(msg_str_ptr, "midi time code quarter frame");
break;
case SND_SEQ_EVENT_TIMESIGN:
g_string_sprintf(msg_str_ptr, "SMF Time Signature event");
break;
case SND_SEQ_EVENT_KEYSIGN:
g_string_sprintf(msg_str_ptr, "SMF Key Signature event");
break;
case SND_SEQ_EVENT_START:
g_string_sprintf(msg_str_ptr, "MIDI Real Time Start message");
break;
case SND_SEQ_EVENT_CONTINUE:
g_string_sprintf(msg_str_ptr, "MIDI Real Time Continue message");
break;
case SND_SEQ_EVENT_STOP:
g_string_sprintf(msg_str_ptr, "MIDI Real Time Stop message");
break;
case SND_SEQ_EVENT_SETPOS_TICK:
g_string_sprintf(msg_str_ptr, "Set tick queue position");
break;
case SND_SEQ_EVENT_SETPOS_TIME:
g_string_sprintf(msg_str_ptr, "Set real-time queue position");
break;
case SND_SEQ_EVENT_TEMPO:
g_string_sprintf(msg_str_ptr, "(SMF) Tempo event");
break;
case SND_SEQ_EVENT_CLOCK:
g_string_sprintf(msg_str_ptr, "MIDI Real Time Clock message");
break;
case SND_SEQ_EVENT_TICK:
g_string_sprintf(msg_str_ptr, "MIDI Real Time Tick message");
break;
case SND_SEQ_EVENT_QUEUE_SKEW:
g_string_sprintf(msg_str_ptr, "Queue timer skew");
break;
case SND_SEQ_EVENT_SYNC_POS:
g_string_sprintf(msg_str_ptr, "Sync position changed");
break;
case SND_SEQ_EVENT_TUNE_REQUEST:
g_string_sprintf(msg_str_ptr, "Tune request");
break;
case SND_SEQ_EVENT_RESET:
g_string_sprintf(msg_str_ptr, "Reset");
break;
case SND_SEQ_EVENT_SENSING:
continue; /* disable */
g_string_sprintf(msg_str_ptr, "Active sensing");
break;
case SND_SEQ_EVENT_ECHO:
g_string_sprintf(msg_str_ptr, "Echo-back event");
break;
case SND_SEQ_EVENT_OSS:
g_string_sprintf(msg_str_ptr, "OSS emulation raw event");
break;
case SND_SEQ_EVENT_CLIENT_START:
g_string_sprintf(msg_str_ptr, "New client has connected");
break;
case SND_SEQ_EVENT_CLIENT_EXIT:
g_string_sprintf(msg_str_ptr, "Client has left the system");
break;
case SND_SEQ_EVENT_CLIENT_CHANGE:
g_string_sprintf(msg_str_ptr, "Client status/info has changed");
break;
case SND_SEQ_EVENT_PORT_START:
g_string_sprintf(msg_str_ptr, "New port was created");
break;
case SND_SEQ_EVENT_PORT_EXIT:
g_string_sprintf(msg_str_ptr, "Port was deleted from system");
break;
case SND_SEQ_EVENT_PORT_CHANGE:
g_string_sprintf(msg_str_ptr, "Port status/info has changed");
break;
case SND_SEQ_EVENT_PORT_SUBSCRIBED:
g_string_sprintf(msg_str_ptr, "Port connected");
break;
case SND_SEQ_EVENT_PORT_UNSUBSCRIBED:
g_string_sprintf(msg_str_ptr, "Port disconnected");
break;
#if OLD_ALSA
case SND_SEQ_EVENT_SAMPLE:
g_string_sprintf(msg_str_ptr, "Sample select");
break;
case SND_SEQ_EVENT_SAMPLE_CLUSTER:
g_string_sprintf(msg_str_ptr, "Sample cluster select");
break;
case SND_SEQ_EVENT_SAMPLE_START:
g_string_sprintf(msg_str_ptr, "voice start");
break;
case SND_SEQ_EVENT_SAMPLE_STOP:
g_string_sprintf(msg_str_ptr, "voice stop");
break;
case SND_SEQ_EVENT_SAMPLE_FREQ:
g_string_sprintf(msg_str_ptr, "playback frequency");
break;
case SND_SEQ_EVENT_SAMPLE_VOLUME:
g_string_sprintf(msg_str_ptr, "volume and balance");
break;
case SND_SEQ_EVENT_SAMPLE_LOOP:
g_string_sprintf(msg_str_ptr, "sample loop");
break;
case SND_SEQ_EVENT_SAMPLE_POSITION:
g_string_sprintf(msg_str_ptr, "sample position");
break;
case SND_SEQ_EVENT_SAMPLE_PRIVATE1:
g_string_sprintf(msg_str_ptr, "private (hardware dependent) event");
break;
#endif
case SND_SEQ_EVENT_USR0:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR1:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR2:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR3:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR4:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR5:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR6:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR7:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR8:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
case SND_SEQ_EVENT_USR9:
g_string_sprintf(msg_str_ptr, "user-defined event");
break;
#if OLD_ALSA
case SND_SEQ_EVENT_INSTR_BEGIN:
g_string_sprintf(msg_str_ptr, "begin of instrument management");
break;
case SND_SEQ_EVENT_INSTR_END:
g_string_sprintf(msg_str_ptr, "end of instrument management");
break;
case SND_SEQ_EVENT_INSTR_INFO:
g_string_sprintf(msg_str_ptr, "query instrument interface info");
break;
case SND_SEQ_EVENT_INSTR_INFO_RESULT:
g_string_sprintf(msg_str_ptr, "result of instrument interface info");
break;
case SND_SEQ_EVENT_INSTR_FINFO:
g_string_sprintf(msg_str_ptr, "query instrument format info");
break;
case SND_SEQ_EVENT_INSTR_FINFO_RESULT:
g_string_sprintf(msg_str_ptr, "result of instrument format info");
break;
case SND_SEQ_EVENT_INSTR_RESET:
g_string_sprintf(msg_str_ptr, "reset instrument instrument memory");
break;
case SND_SEQ_EVENT_INSTR_STATUS:
g_string_sprintf(msg_str_ptr, "get instrument interface status");
break;
case SND_SEQ_EVENT_INSTR_STATUS_RESULT:
g_string_sprintf(msg_str_ptr, "result of instrument interface status");
break;
case SND_SEQ_EVENT_INSTR_PUT:
g_string_sprintf(msg_str_ptr, "put an instrument to port");
break;
case SND_SEQ_EVENT_INSTR_GET:
g_string_sprintf(msg_str_ptr, "get an instrument from port");
break;
case SND_SEQ_EVENT_INSTR_GET_RESULT:
g_string_sprintf(msg_str_ptr, "result of instrument query");
break;
case SND_SEQ_EVENT_INSTR_FREE:
g_string_sprintf(msg_str_ptr, "free instrument(s)");
break;
case SND_SEQ_EVENT_INSTR_LIST:
g_string_sprintf(msg_str_ptr, "get instrument list");
break;
case SND_SEQ_EVENT_INSTR_LIST_RESULT:
g_string_sprintf(msg_str_ptr, "result of instrument list");
break;
case SND_SEQ_EVENT_INSTR_CLUSTER:
g_string_sprintf(msg_str_ptr, "set cluster parameters");
break;
case SND_SEQ_EVENT_INSTR_CLUSTER_GET:
g_string_sprintf(msg_str_ptr, "get cluster parameters");
break;
case SND_SEQ_EVENT_INSTR_CLUSTER_RESULT:
g_string_sprintf(msg_str_ptr, "result of cluster parameters");
break;
case SND_SEQ_EVENT_INSTR_CHANGE:
g_string_sprintf(msg_str_ptr, "instrument change");
break;
#endif
case SND_SEQ_EVENT_SYSEX:
decode_sysex(
(guint8 *)event_ptr->data.ext.ptr,
event_ptr->data.ext.len,
msg_str_ptr);
break;
case SND_SEQ_EVENT_BOUNCE:
g_string_sprintf(msg_str_ptr, "error event");
break;
case SND_SEQ_EVENT_USR_VAR0:
g_string_sprintf(msg_str_ptr, "reserved for user apps");
break;
case SND_SEQ_EVENT_USR_VAR1:
g_string_sprintf(msg_str_ptr, "reserved for user apps");
break;
case SND_SEQ_EVENT_USR_VAR2:
g_string_sprintf(msg_str_ptr, "reserved for user apps");
break;
case SND_SEQ_EVENT_USR_VAR3:
g_string_sprintf(msg_str_ptr, "reserved for user apps");
break;
case SND_SEQ_EVENT_USR_VAR4:
g_string_sprintf(msg_str_ptr, "reserved for user apps");
break;
}
/* get GTK thread lock */
gdk_threads_enter();
if (g_row_count >= MAX_LIST_SIZE)
{
gtk_tree_model_get_iter_first(
GTK_TREE_MODEL(list_store_ptr),
&iter);
gtk_list_store_remove(
list_store_ptr,
&iter);
}
/* Append an empty row to the list store. Iter will point to the new row */
gtk_list_store_append(list_store_ptr, &iter);
gtk_list_store_set(
list_store_ptr,
&iter,
COL_TIME, time_str_ptr->str,
COL_CHANNEL, channel_str_ptr->str,
COL_MESSAGE, msg_str_ptr->str,
-1);
gtk_tree_view_scroll_to_cell(
GTK_TREE_VIEW(child_ptr),
gtk_tree_model_get_path(
gtk_tree_view_get_model(GTK_TREE_VIEW(child_ptr)),
&iter),
NULL,
TRUE,
0.0,
1.0);
/* Force update of scroll position. */
/* Is it a bug that it does not update automagically ? */
gtk_container_check_resize(GTK_CONTAINER(child_ptr));
g_row_count++;
/* release GTK thread lock */
gdk_threads_leave();
g_string_free(channel_str_ptr, TRUE);
g_string_free(msg_str_ptr, TRUE);
g_string_free(time_str_ptr, TRUE);
}
return NULL;
}
gboolean
alsa_init(const char * name)
{
int ret;
snd_seq_port_info_t * port_info = NULL;
ret = snd_seq_open(
&g_seq_ptr,
"default",
SND_SEQ_OPEN_INPUT,
0);
if (ret < 0)
{
g_warning("Cannot open sequncer, %s\n", snd_strerror(ret));
goto fail;
}
snd_seq_set_client_name(g_seq_ptr, name);
#ifdef HAVE_LASH_1_0
lash_alsa_client_id(g_lashc, snd_seq_client_id(g_seq_ptr));
#endif
snd_seq_port_info_alloca(&port_info);
snd_seq_port_info_set_capability(
port_info,
SND_SEQ_PORT_CAP_WRITE |
SND_SEQ_PORT_CAP_SUBS_WRITE);
snd_seq_port_info_set_type(
port_info,
SND_SEQ_PORT_TYPE_APPLICATION);
snd_seq_port_info_set_midi_channels(port_info, 16);
snd_seq_port_info_set_port_specified(port_info, 1);
snd_seq_port_info_set_name(port_info, "midi in");
snd_seq_port_info_set_port(port_info, 0);
ret = snd_seq_create_port(g_seq_ptr, port_info);
if (ret < 0)
{
g_warning("Error creating ALSA sequencer port, %s\n", snd_strerror(ret));
goto fail_close_seq;
}
/* Start midi thread */
ret = pthread_create(&g_alsa_midi_tid, NULL, alsa_midi_thread, NULL);
return TRUE;
fail_close_seq:
ret = snd_seq_close(g_seq_ptr);
if (ret < 0)
{
g_warning("Cannot close sequncer, %s\n", snd_strerror(ret));
}
fail:
return FALSE;
}
void
alsa_uninit()
{
int ret;
/* Cancel the thread. Don't know better way.
Poll or unblock mechanisms seem to not be
available for alsa sequencer */
pthread_cancel(g_alsa_midi_tid);
/* Wait midi thread to finish */
ret = pthread_join(g_alsa_midi_tid, NULL);
ret = snd_seq_close(g_seq_ptr);
if (ret < 0)
{
g_warning("Cannot close sequncer, %s\n", snd_strerror(ret));
}
}
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