/*****************************************************************************
mixer.c - mixer 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#include "envy24control.h"
#include "midi.h"
#include "config.h"
#define MULTI_PLAYBACK_SWITCH "Multi Playback Switch"
#define MULTI_PLAYBACK_VOLUME "Multi Playback Volume"
#define HW_MULTI_CAPTURE_SWITCH "H/W Multi Capture Switch"
#define IEC958_MULTI_CAPTURE_SWITCH "IEC958 Multi Capture Switch"
#define HW_MULTI_CAPTURE_VOLUME "H/W Multi Capture Volume"
#define IEC958_MULTI_CAPTURE_VOLUME "IEC958 Multi Capture Volume"
#define toggle_set(widget, state) \
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), state);
static int stream_is_active[MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + \
MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS];
extern int input_channels, output_channels, pcm_output_channels, spdif_channels, view_spdif_playback;
static int is_active(GtkWidget *widget)
{
return GTK_TOGGLE_BUTTON(widget)->active ? 1 : 0;
}
void mixer_update_stream(int stream, int vol_flag, int sw_flag)
{
int err;
if (! stream_is_active[stream - 1])
return;
if (vol_flag) {
snd_ctl_elem_value_t *vol;
int v[2];
snd_ctl_elem_value_alloca(&vol);
snd_ctl_elem_value_set_interface(vol, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(vol, stream <= 10 ? MULTI_PLAYBACK_VOLUME : (stream <= 18 ? HW_MULTI_CAPTURE_VOLUME : IEC958_MULTI_CAPTURE_VOLUME));
snd_ctl_elem_value_set_index(vol, stream <= 18 ? (stream - 1) % 10 : (stream - 1) % 18 );
if ((err = snd_ctl_elem_read(ctl, vol)) < 0)
g_print("Unable to read multi playback volume: %s\n", snd_strerror(err));
v[0] = snd_ctl_elem_value_get_integer(vol, 0);
v[1] = snd_ctl_elem_value_get_integer(vol, 1);
if (v[0] != v[1])
toggle_set(mixer_stereo_toggle[stream-1], FALSE);
gtk_adjustment_set_value(GTK_ADJUSTMENT(mixer_adj[stream-1][0]), 96 - v[0]);
gtk_adjustment_set_value(GTK_ADJUSTMENT(mixer_adj[stream-1][1]), 96 - v[1]);
midi_controller((stream-1)*2, v[0]);
midi_controller((stream-1)*2+1, v[1]);
}
if (sw_flag) {
snd_ctl_elem_value_t *sw;
int v[2];
snd_ctl_elem_value_alloca(&sw);
snd_ctl_elem_value_set_interface(sw, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(sw, stream <= 10 ? MULTI_PLAYBACK_SWITCH : (stream <= 18 ? HW_MULTI_CAPTURE_SWITCH : IEC958_MULTI_CAPTURE_SWITCH));
snd_ctl_elem_value_set_index(sw, stream <= 18 ? (stream - 1) % 10 : (stream - 1) % 18 );
if ((err = snd_ctl_elem_read(ctl, sw)) < 0)
g_print("Unable to read multi playback switch: %s\n", snd_strerror(err));
v[0] = snd_ctl_elem_value_get_boolean(sw, 0);
v[1] = snd_ctl_elem_value_get_boolean(sw, 1);
if (v[0] != v[1])
toggle_set(mixer_stereo_toggle[stream-1], FALSE);
toggle_set(mixer_mute_toggle[stream-1][0], !v[0] ? TRUE : FALSE);
toggle_set(mixer_mute_toggle[stream-1][1], !v[1] ? TRUE : FALSE);
midi_button((stream-1)*2, v[0]);
midi_button((stream-1)*2+1, v[1]);
}
}
static void set_switch1(int stream, int left, int right)
{
snd_ctl_elem_value_t *sw;
int err, changed = 0;
snd_ctl_elem_value_alloca(&sw);
snd_ctl_elem_value_set_interface(sw, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(sw, stream <= 10 ? MULTI_PLAYBACK_SWITCH : (stream <= 18 ? HW_MULTI_CAPTURE_SWITCH : IEC958_MULTI_CAPTURE_SWITCH));
snd_ctl_elem_value_set_index(sw, stream <= 18 ? (stream - 1) % 10 : (stream - 1) % 18 );
if ((err = snd_ctl_elem_read(ctl, sw)) < 0)
g_print("Unable to read multi switch: %s\n", snd_strerror(err));
if (left >= 0 && left != snd_ctl_elem_value_get_boolean(sw, 0)) {
snd_ctl_elem_value_set_boolean(sw, 0, left);
changed = 1;
midi_button((stream-1)*2, left);
}
if (right >= 0 && right != snd_ctl_elem_value_get_boolean(sw, 1)) {
snd_ctl_elem_value_set_boolean(sw, 1, right);
changed = 1;
midi_button((stream-1)*2+1, right);
}
if (changed) {
err = snd_ctl_elem_write(ctl, sw);
if (err < 0)
g_print("Unable to write multi switch: %s\n", snd_strerror(err));
}
}
void mixer_toggled_mute(GtkWidget *togglebutton, gpointer data)
{
int stream = (long)data >> 16;
int button = (long)data & 1;
int stereo = is_active(mixer_stereo_toggle[stream-1]) ? 1 : 0;
int mute;
int vol[2] = { -1, -1 };
mute = is_active(mixer_mute_toggle[stream-1][button]);
vol[button] = !mute;
if (stereo) {
toggle_set(mixer_mute_toggle[stream-1][button^1], mute);
vol[button^1] = !mute;
}
set_switch1(stream, vol[0], vol[1]);
}
void mixer_set_mute(int stream, int left, int right)
{
int stereo = is_active(mixer_stereo_toggle[stream-1]) ? 1 : 0;
if (left >= 0 || stereo) {
toggle_set(mixer_mute_toggle[stream-1][0], left ? TRUE : FALSE);
if(stereo && left<0) left=right;
}
if (right >= 0 || stereo) {
toggle_set(mixer_mute_toggle[stream-1][1], right ? TRUE : FALSE);
if(stereo && right<0) right=left;
}
set_switch1(stream, left, right);
}
static void set_volume1(int stream, int left, int right)
{
snd_ctl_elem_value_t *vol;
int change = 0;
int err;
snd_ctl_elem_value_alloca(&vol);
snd_ctl_elem_value_set_interface(vol, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(vol, stream <= 10 ? MULTI_PLAYBACK_VOLUME : (stream <= 18 ? HW_MULTI_CAPTURE_VOLUME : IEC958_MULTI_CAPTURE_VOLUME));
snd_ctl_elem_value_set_index(vol, stream <= 18 ? (stream - 1) % 10 : (stream - 1) % 18 );
if ((err = snd_ctl_elem_read(ctl, vol)) < 0)
g_print("Unable to read multi volume: %s\n", snd_strerror(err));
if (left >= 0) {
change |= (snd_ctl_elem_value_get_integer(vol, 0) != left);
snd_ctl_elem_value_set_integer(vol, 0, left);
midi_controller((stream-1)*2, left);
}
if (right >= 0) {
change |= (snd_ctl_elem_value_get_integer(vol, 1) != right);
snd_ctl_elem_value_set_integer(vol, 1, right);
midi_controller((stream-1)*2+1, right);
}
if (change) {
if ((err = snd_ctl_elem_write(ctl, vol)) < 0 && err != -EBUSY)
g_print("Unable to write multi volume: %s\n", snd_strerror(err));
}
}
void mixer_adjust(GtkAdjustment *adj, gpointer data)
{
int stream = (long)data >> 16;
int button = (long)data & 1;
int stereo = is_active(mixer_stereo_toggle[stream-1]) ? 1 : 0;
int vol[2] = { -1, -1 };
vol[button] = 96 - adj->value;
if (stereo) {
gtk_adjustment_set_value(GTK_ADJUSTMENT(mixer_adj[stream-1][button ^ 1]), adj->value);
vol[button ^ 1] = 96 - adj->value;
}
set_volume1(stream, vol[0], vol[1]);
}
int mixer_stream_is_active(int stream)
{
return stream_is_active[stream - 1];
}
void mixer_init(void)
{
int i;
int nb_active_channels;
snd_ctl_elem_value_t *val;
midi_maxstreams(sizeof(stream_is_active)/sizeof(stream_is_active[0]));
snd_ctl_elem_value_alloca(&val);
snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
memset (stream_is_active, 0, (MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + MAX_INPUT_CHANNELS + MAX_SPDIF_CHANNELS) * sizeof(int));
snd_ctl_elem_value_set_name(val, MULTI_PLAYBACK_SWITCH);
nb_active_channels = 0;
for (i = 0; i < pcm_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_is_active[i] = 1;
nb_active_channels++;
}
pcm_output_channels = nb_active_channels;
for (i = MAX_PCM_OUTPUT_CHANNELS; i < MAX_PCM_OUTPUT_CHANNELS + 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_is_active[i] = 1;
}
snd_ctl_elem_value_set_name(val, HW_MULTI_CAPTURE_SWITCH);
nb_active_channels = 0;
for (i = 0; i < input_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_is_active[i + MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS] = 1;
nb_active_channels++;
}
input_channels = nb_active_channels;
snd_ctl_elem_value_set_name(val, IEC958_MULTI_CAPTURE_SWITCH);
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_is_active[i + MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + MAX_INPUT_CHANNELS] = 1;
}
}
void mixer_postinit(void)
{
int stream;
for (stream = 1; stream <= pcm_output_channels; stream++) {
if (stream_is_active[stream - 1])
mixer_update_stream(stream, 1, 1);
}
for (stream = MAX_PCM_OUTPUT_CHANNELS + 1; \
stream <= MAX_PCM_OUTPUT_CHANNELS + spdif_channels; stream++) {
if (stream_is_active[stream - 1] && view_spdif_playback)
mixer_update_stream(stream, 1, 1);
}
for (stream = MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + 1; \
stream <= MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + input_channels; stream++) {
if (stream_is_active[stream - 1])
mixer_update_stream(stream, 1, 1);
}
for (stream = MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + MAX_INPUT_CHANNELS + 1; \
stream <= MAX_PCM_OUTPUT_CHANNELS + MAX_SPDIF_CHANNELS + MAX_INPUT_CHANNELS + spdif_channels; stream++) {
if (stream_is_active[stream - 1])
mixer_update_stream(stream, 1, 1);
}
config_restore_stereo();
}