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/*****************************************************************************
patchbay.c - patchbay/router code
Copyright (C) 2000 by Jaroslav Kysela <perex@perex.cz>
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.
******************************************************************************/
#include "envy24control.h"
#define SPDIF_PLAYBACK_ROUTE_NAME "IEC958 Playback Route"
#define ANALOG_PLAYBACK_ROUTE_NAME "H/W Playback Route"
#define toggle_set(widget, state) \
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), state);
static int stream_active[MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS];
extern int output_channels, input_channels, pcm_output_channels, spdif_channels;
static int is_active(GtkWidget *widget)
{
return GTK_TOGGLE_BUTTON(widget)->active ? 1 : 0;
}
static int get_toggle_index(int stream)
{
int err, out;
snd_ctl_elem_value_t *val;
stream--;
if (stream < 0 || stream > 9) {
g_print("get_toggle_index (1)\n");
return 0;
}
snd_ctl_elem_value_alloca(&val);
snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
if (stream >= MAX_OUTPUT_CHANNELS) {
snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS);
} else {
snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index(val, stream);
}
if ((err = snd_ctl_elem_read(ctl, val)) < 0)
return 0;
out = snd_ctl_elem_value_get_enumerated(val, 0);
if (out >= MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1) {
if (stream >= MAX_PCM_OUTPUT_CHANNELS || stream < MAX_SPDIF_CHANNELS)
return 1; /* digital mixer */
} else if (out >= MAX_INPUT_CHANNELS + 1)
return out - (MAX_INPUT_CHANNELS + 1) + 2; /* spdif left (=2) / right (=3) */
else if (out >= 1)
return out + spdif_channels + 1; /* analog (4-) */
return 0; /* pcm */
}
void patchbay_update(void)
{
int stream, tidx;
for (stream = 1; stream <= (MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS); stream++) {
if (stream_active[stream - 1]) {
tidx = get_toggle_index(stream);
toggle_set(router_radio[stream - 1][tidx], TRUE);
}
}
}
static void set_routes(int stream, int idx)
{
int err;
unsigned int out;
snd_ctl_elem_value_t *val;
stream--;
if (stream < 0 || stream > 9) {
g_print("set_routes (1)\n");
return;
}
if (! stream_active[stream])
return;
out = 0;
if (idx == 1)
out = MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1;
else if (idx == 2 || idx == 3) /* S/PDIF left & right */
out = idx + 7; /* 9-10 */
else if (idx >= 4) /* analog */
out = idx - 3; /* 1-8 */
snd_ctl_elem_value_alloca(&val);
snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
if (stream >= MAX_OUTPUT_CHANNELS) {
snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS);
} else {
snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
snd_ctl_elem_value_set_index(val, stream);
}
snd_ctl_elem_value_set_enumerated(val, 0, out);
if ((err = snd_ctl_elem_write(ctl, val)) < 0)
g_print("Multi track route write error: %s\n", snd_strerror(err));
}
void patchbay_toggled(GtkWidget *togglebutton, gpointer data)
{
int stream = (long)data >> 16;
int what = (long)data & 0xffff;
if (is_active(togglebutton))
set_routes(stream, what);
}
int patchbay_stream_is_active(int stream)
{
return stream_active[stream - 1];
}
void patchbay_init(void)
{
int i;
int nb_active_channels;
snd_ctl_elem_value_t *val;
snd_ctl_elem_value_alloca(&val);
snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
memset (stream_active, 0, (MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS) * sizeof(int));
nb_active_channels = 0;
for (i = 0; i < output_channels; i++) {
snd_ctl_elem_value_set_numid(val, 0);
snd_ctl_elem_value_set_index(val, i);
if (snd_ctl_elem_read(ctl, val) < 0)
continue;
stream_active[i] = 1;
nb_active_channels++;
}
output_channels = nb_active_channels;
snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
nb_active_channels = 0;
for (i = 0; i < spdif_channels; i++) {
snd_ctl_elem_value_set_numid(val, 0);
snd_ctl_elem_value_set_index(val, i);
if (snd_ctl_elem_read(ctl, val) < 0)
continue;
stream_active[i + MAX_OUTPUT_CHANNELS] = 1;
nb_active_channels++;
}
spdif_channels = nb_active_channels;
}
void patchbay_postinit(void)
{
patchbay_update();
}
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