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/*
Copyright (C) 2014 Samsung Electronics
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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.
*/
#include "JackSapaProxy.h"
#include "JackServerGlobals.h"
#include "JackEngineControl.h"
#include "JackLockedEngine.h"
#include "JackArgParser.h"
#include <assert.h>
#include <string>
// Example)
// sapaproxy
// .----------.
// sapaproxy:__system_capture_1 -->| |--> sapaproxy:capture_1
// sapaproxy:__system_capture_2 -->| |--> sapaproxy:capture_2
// ... | | ...
// | |
// sapaproxy:playback_1 ---------->| |--> sapaproxy:__system_playback_1
// sapaproxy:playback_2 ---------->| |--> sapaproxy:__system_playback_2
// sapaproxy:playback_3 ---------->| |--> sapaproxy:__system_playback_3
// sapaproxy:playback_4 ---------->| |--> sapaproxy:__system_playback_4
// ... | | ...
// '----------'
namespace Jack
{
JackSapaProxy::JackSapaProxy(jack_client_t* client, const JSList* params)
:fClient(client)
{
jack_log("JackSapaProxy::JackSapaProxy");
fCapturePorts = fPlaybackPorts = 0;
const JSList* node;
const jack_driver_param_t* param;
for (node = params; node; node = jack_slist_next(node)) {
param = (const jack_driver_param_t*)node->data;
switch (param->character) {
case 'C':
fCapturePorts = (param->value.ui > SAPAPROXY_PORT_NUM_FOR_CLIENT)? SAPAPROXY_PORT_NUM_FOR_CLIENT : param->value.ui;
break;
case 'P':
fPlaybackPorts = (param->value.ui > SAPAPROXY_PORT_NUM_FOR_CLIENT)? SAPAPROXY_PORT_NUM_FOR_CLIENT : param->value.ui;
break;
}
}
}
JackSapaProxy::~JackSapaProxy()
{
jack_log("JackSapaProxy::~JackSapaProxy");
}
int JackSapaProxy::Setup(jack_client_t* client)
{
jack_log("JackSapaProxy::Setup");
//refer to system ports and create sapaproxy ports
unsigned int i = 0, j = 0;
const char **ports_system_capture;
const char **ports_system_playback;
unsigned int ports_system_capture_cnt = 0;
unsigned int ports_system_playback_cnt = 0;
char port_name[JACK_PORT_NAME_SIZE] = {0,};
ports_system_capture = jack_get_ports(client, "system:.*", NULL, JackPortIsPhysical | JackPortIsOutput);
if (ports_system_capture != NULL) {
for (i = 0; i < fCapturePorts && ports_system_capture[i]; i++) {
sprintf(port_name, "__system_capture_%d", i + 1);
fInputPorts[i] = jack_port_register(client, port_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
sprintf(port_name, "capture_%d", i + 1);
fOutputPorts[i] = jack_port_register(client, port_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
ports_system_capture_cnt++;
}
jack_free(ports_system_capture);
}
ports_system_playback = jack_get_ports(client, "system:.*", NULL, JackPortIsPhysical | JackPortIsInput);
if (ports_system_playback != NULL) {
for (j = 0; j < fPlaybackPorts && ports_system_playback[j]; j++, i++) {
sprintf(port_name, "playback_%d", j + 1);
fInputPorts[i] = jack_port_register(client, port_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
sprintf(port_name, "__system_playback_%d", j + 1);
fOutputPorts[i] = jack_port_register(client, port_name, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
ports_system_playback_cnt++;
}
jack_free(ports_system_playback);
}
//store actual number of system ports
fCapturePorts = ports_system_capture_cnt;
fPlaybackPorts = ports_system_playback_cnt;
jack_set_process_callback(client, Process, this);
jack_activate(client);
//connect between sapaproxy and system ports
for (unsigned int i = 0; i < ports_system_capture_cnt; i++) {
sprintf(port_name, "system:capture_%d", i + 1);
jack_connect(client, port_name, jack_port_name(fInputPorts[i]));
}
for (unsigned int i = 0; i < ports_system_playback_cnt; i++) {
sprintf(port_name, "system:playback_%d", i + 1);
jack_connect(client, jack_port_name(fOutputPorts[ports_system_capture_cnt + i]), port_name);
}
return 0;
}
int JackSapaProxy::Process(jack_nframes_t nframes, void* arg)
{
JackSapaProxy* sapaproxy = static_cast<JackSapaProxy*>(arg);
jack_default_audio_sample_t *in, *out;
//for capture
for (unsigned int i = 0; i < sapaproxy->fCapturePorts; i++) {
in = (jack_default_audio_sample_t*)jack_port_get_buffer(sapaproxy->fInputPorts[i] , nframes);
out = (jack_default_audio_sample_t*)jack_port_get_buffer(sapaproxy->fOutputPorts[i], nframes);
// TODO: adjust pcm gain each platform here
memcpy(out, in, sizeof(jack_default_audio_sample_t) * nframes);
}
//for playback
for (unsigned int i = sapaproxy->fCapturePorts; i < (sapaproxy->fCapturePorts + sapaproxy->fPlaybackPorts); i++) {
in = (jack_default_audio_sample_t*)jack_port_get_buffer(sapaproxy->fInputPorts[i] , nframes);
out = (jack_default_audio_sample_t*)jack_port_get_buffer(sapaproxy->fOutputPorts[i], nframes);
// TODO: adjust pcm gain each platform here
memcpy(out, in, sizeof(jack_default_audio_sample_t) * nframes);
}
return 0;
}
} // namespace Jack
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