149 lines
5.0 KiB
C
149 lines
5.0 KiB
C
/* gnu_javax_sound_midi_alsa_AlsaMidiDeviceProvider.c
|
|
Copyright (C) 2005 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath 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, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath 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 GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
#include <config.h>
|
|
#include <gnu_javax_sound_midi_alsa_AlsaMidiDeviceProvider.h>
|
|
|
|
#include <alsa/asoundlib.h>
|
|
|
|
static snd_seq_t *seq;
|
|
|
|
JNIEXPORT void JNICALL
|
|
Java_gnu_javax_sound_midi_alsa_AlsaMidiDeviceProvider_init_1
|
|
(JNIEnv *env __attribute__((unused)), jobject this __attribute__((unused)))
|
|
{
|
|
int rc = snd_seq_open (&seq, "default", SND_SEQ_OPEN_DUPLEX, SND_SEQ_NONBLOCK);
|
|
if (rc < 0)
|
|
abort ();
|
|
snd_seq_set_client_name(seq, "gnu.javax.sound.midi.alsa");
|
|
}
|
|
|
|
/**
|
|
* Return a CLAZZ[] filled with ports matching TYPE.
|
|
*/
|
|
static jobjectArray
|
|
getPortDeviceInfo (JNIEnv *env, unsigned type, const char *clazz)
|
|
{
|
|
jobjectArray rarray;
|
|
snd_seq_client_info_t *cinfo;
|
|
snd_seq_port_info_t *pinfo;
|
|
int client;
|
|
int count = 0;
|
|
jclass icls;
|
|
jmethodID mid;
|
|
|
|
snd_seq_client_info_alloca(&cinfo);
|
|
snd_seq_port_info_alloca(&pinfo);
|
|
|
|
/* First, count the number of input devices. */
|
|
snd_seq_client_info_set_client (cinfo, -1);
|
|
while (snd_seq_query_next_client (seq, cinfo) >= 0)
|
|
{
|
|
client = snd_seq_client_info_get_client (cinfo);
|
|
if (client == 0)
|
|
continue;
|
|
snd_seq_port_info_set_client (pinfo, client);
|
|
snd_seq_port_info_set_port (pinfo, -1);
|
|
while (snd_seq_query_next_port (seq, pinfo) >= 0)
|
|
{
|
|
if ((snd_seq_port_info_get_capability (pinfo) & type) != type)
|
|
continue;
|
|
count++;
|
|
}
|
|
}
|
|
|
|
icls = (*env)->FindClass(env, clazz);
|
|
mid = (*env)->GetMethodID(env, icls, "<init>",
|
|
"(Ljava/lang/String;Ljava/lang/String;JJ)V");
|
|
|
|
rarray = (jobjectArray) (*env)->NewObjectArray(env, count, icls, NULL);
|
|
|
|
/* Now, populate our array. */
|
|
count = 0;
|
|
snd_seq_client_info_set_client (cinfo, -1);
|
|
while (snd_seq_query_next_client (seq, cinfo) >= 0)
|
|
{
|
|
const char *client_name;
|
|
client = snd_seq_client_info_get_client (cinfo);
|
|
if (client == 0)
|
|
continue;
|
|
snd_seq_port_info_set_client (pinfo, client);
|
|
snd_seq_port_info_set_port (pinfo, -1);
|
|
|
|
client_name = snd_seq_client_info_get_name (cinfo);
|
|
|
|
while (snd_seq_query_next_port (seq, pinfo) >= 0)
|
|
{
|
|
const char *port_name;
|
|
|
|
if ((snd_seq_port_info_get_capability (pinfo) & type) != type)
|
|
continue;
|
|
|
|
port_name = snd_seq_port_info_get_name (pinfo);
|
|
|
|
(*env)->SetObjectArrayElement(env, rarray, count,
|
|
(*env)->NewObject (env, icls, mid,
|
|
(*env)->NewStringUTF (env, client_name),
|
|
(*env)->NewStringUTF (env, port_name),
|
|
(jlong) snd_seq_port_info_get_client(pinfo),
|
|
(jlong) snd_seq_port_info_get_port(pinfo)));
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return rarray;
|
|
}
|
|
|
|
JNIEXPORT jobjectArray JNICALL
|
|
Java_gnu_javax_sound_midi_alsa_AlsaMidiDeviceProvider_getInputDeviceInfo_1
|
|
(JNIEnv *env, jobject this __attribute__((unused)))
|
|
{
|
|
return getPortDeviceInfo (env,
|
|
(SND_SEQ_PORT_CAP_READ | SND_SEQ_PORT_CAP_SUBS_READ),
|
|
"gnu/javax/sound/midi/alsa/AlsaMidiDeviceProvider$AlsaInputPortInfo");
|
|
}
|
|
|
|
JNIEXPORT jobjectArray JNICALL
|
|
Java_gnu_javax_sound_midi_alsa_AlsaMidiDeviceProvider_getOutputDeviceInfo_1
|
|
(JNIEnv *env, jobject this __attribute__((unused)))
|
|
{
|
|
return getPortDeviceInfo (env,
|
|
(SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE),
|
|
"gnu/javax/sound/midi/alsa/AlsaMidiDeviceProvider$AlsaOutputPortInfo");
|
|
}
|
|
|