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/*****************************************************************************
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patchbay.c - patchbay/router code
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Copyright (C) 2000 by Jaroslav Kysela <perex@perex.cz>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#include "envy24control.h"
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#define SPDIF_PLAYBACK_ROUTE_NAME "IEC958 Playback Route"
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#define ANALOG_PLAYBACK_ROUTE_NAME "H/W Playback Route"
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#define toggle_set(widget, state) \
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gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), state);
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static int stream_active[MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS];
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extern int output_channels, input_channels, pcm_output_channels, spdif_channels;
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static int is_active(GtkWidget *widget)
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{
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return GTK_TOGGLE_BUTTON(widget)->active ? 1 : 0;
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}
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static int get_toggle_index(int stream)
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{
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int err, out;
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snd_ctl_elem_value_t *val;
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stream--;
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if (stream < 0 || stream > 9) {
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g_print("get_toggle_index (1)\n");
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return 0;
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}
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snd_ctl_elem_value_alloca(&val;;
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snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
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if (stream >= MAX_OUTPUT_CHANNELS) {
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snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
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snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS);
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} else {
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snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
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snd_ctl_elem_value_set_index(val, stream);
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}
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if ((err = snd_ctl_elem_read(ctl, val)) < 0)
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return 0;
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out = snd_ctl_elem_value_get_enumerated(val, 0);
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if (out >= MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1) {
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if (stream >= MAX_PCM_OUTPUT_CHANNELS || stream < MAX_SPDIF_CHANNELS)
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return 1; /* digital mixer */
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} else if (out >= MAX_INPUT_CHANNELS + 1)
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return out - (MAX_INPUT_CHANNELS + 1) + 2; /* spdif left (=2) / right (=3) */
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else if (out >= 1)
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return out + spdif_channels + 1; /* analog (4-) */
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return 0; /* pcm */
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}
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void patchbay_update(void)
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{
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int stream, tidx;
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for (stream = 1; stream <= (MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS); stream++) {
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if (stream_active[stream - 1]) {
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tidx = get_toggle_index(stream);
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toggle_set(router_radio[stream - 1][tidx], TRUE);
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}
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}
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}
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static void set_routes(int stream, int idx)
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{
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int err;
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unsigned int out;
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snd_ctl_elem_value_t *val;
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stream--;
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if (stream < 0 || stream > 9) {
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g_print("set_routes (1)\n");
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return;
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}
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if (! stream_active[stream])
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return;
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out = 0;
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if (idx == 1)
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out = MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1;
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else if (idx == 2 || idx == 3) /* S/PDIF left & right */
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out = idx + 7; /* 9-10 */
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else if (idx >= 4) /* analog */
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out = idx - 3; /* 1-8 */
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snd_ctl_elem_value_alloca(&val;;
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snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
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if (stream >= MAX_OUTPUT_CHANNELS) {
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snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
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snd_ctl_elem_value_set_index(val, stream - MAX_OUTPUT_CHANNELS);
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} else {
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snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
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snd_ctl_elem_value_set_index(val, stream);
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}
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snd_ctl_elem_value_set_enumerated(val, 0, out);
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if ((err = snd_ctl_elem_write(ctl, val)) < 0)
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g_print("Multi track route write error: %s\n", snd_strerror(err));
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}
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void patchbay_toggled(GtkWidget *togglebutton, gpointer data)
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{
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int stream = (long)data >> 16;
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int what = (long)data & 0xffff;
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if (is_active(togglebutton))
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set_routes(stream, what);
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}
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int patchbay_stream_is_active(int stream)
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{
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return stream_active[stream - 1];
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}
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void patchbay_init(void)
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{
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int i;
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int nb_active_channels;
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snd_ctl_elem_value_t *val;
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snd_ctl_elem_value_alloca(&val;;
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snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
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snd_ctl_elem_value_set_name(val, ANALOG_PLAYBACK_ROUTE_NAME);
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memset (stream_active, 0, (MAX_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS) * sizeof(int));
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nb_active_channels = 0;
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for (i = 0; i < output_channels; i++) {
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snd_ctl_elem_value_set_numid(val, 0);
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snd_ctl_elem_value_set_index(val, i);
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if (snd_ctl_elem_read(ctl, val) < 0)
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continue;
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stream_active[i] = 1;
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nb_active_channels++;
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}
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output_channels = nb_active_channels;
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snd_ctl_elem_value_set_name(val, SPDIF_PLAYBACK_ROUTE_NAME);
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nb_active_channels = 0;
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for (i = 0; i < spdif_channels; i++) {
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snd_ctl_elem_value_set_numid(val, 0);
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snd_ctl_elem_value_set_index(val, i);
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if (snd_ctl_elem_read(ctl, val) < 0)
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continue;
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stream_active[i + MAX_OUTPUT_CHANNELS] = 1;
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nb_active_channels++;
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}
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spdif_channels = nb_active_channels;
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}
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void patchbay_postinit(void)
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{
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patchbay_update();
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}
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