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/*
DeaDBeeF - ultimate music player for GNU/Linux systems with X11
Copyright (C) 2009-2010 Alexey Yakovenko <waker@users.sourceforge.net>
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 <gtk/gtk.h>
#include <string.h>
#include <math.h>
#include "gtkui.h"
#include "support.h"
#include "../supereq/supereq.h"
static GtkWidget *eqwin;
float
db_to_amp (float dB) {
const float ln10=2.3025850929940002f;
return exp(ln10*dB/20.f);
}
float
amp_to_db (float amp) {
return 20*log10 (amp);
}
void
eq_value_changed (GtkRange *range, gpointer user_data) {
int band = (intptr_t)user_data;
DB_supereq_dsp_t *eq = NULL;
DB_dsp_t **plugs = deadbeef->plug_get_dsp_list ();
// find eq plugin
for (int i = 0; plugs[i]; i++) {
if (plugs[i]->plugin.id && !strcmp (plugs[i]->plugin.id, "supereq")) {
eq = (DB_supereq_dsp_t *)plugs[i];
float val = gtk_range_get_value (range);
val = db_to_amp (val);
eq->set_band (band, val);
break;
}
}
}
void
eq_init_widgets (GtkWidget *container) {
int i;
GtkWidget *hbox = gtk_hbox_new (FALSE, 0);
gtk_widget_show (hbox);
gtk_container_add (GTK_CONTAINER (container), hbox);
DB_supereq_dsp_t *eq = NULL;
DB_dsp_t **plugs = deadbeef->plug_get_dsp_list ();
// find eq plugin
for (i = 0; plugs[i]; i++) {
if (plugs[i]->plugin.id && !strcmp (plugs[i]->plugin.id, "supereq")) {
eq = (DB_supereq_dsp_t *)plugs[i];
break;
}
}
for (i = 0; i < 18; i++) {
GtkWidget *scale = gtk_vscale_new_with_range (-20, 20, 1);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_BOTTOM);
gtk_scale_set_draw_value (GTK_SCALE (scale), TRUE);
gtk_range_set_inverted (GTK_RANGE (scale), TRUE);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
if (eq) {
float val = eq->get_band (i);
val = amp_to_db (val);
if (val < -20) {
val = -20;
}
if (val > 20) {
val = 20;
}
gtk_range_set_value (GTK_RANGE (scale), val);
}
g_signal_connect (scale, "value_changed", G_CALLBACK (eq_value_changed), (gpointer)(intptr_t)i);
gtk_widget_show (scale);
gtk_box_pack_start (GTK_BOX (hbox), scale, FALSE, FALSE, 0);
}
}
void
eq_window_show (void) {
if (!eqwin) {
eqwin = gtk_hbox_new (FALSE, 0);
gtk_widget_set_size_request (eqwin, -1, 200);
eq_init_widgets (eqwin);
GtkWidget *cont = lookup_widget (mainwin, "vbox1");
gtk_box_pack_start (GTK_BOX (cont), eqwin, FALSE, FALSE, 0);
}
gtk_widget_show (eqwin);
}
void
eq_window_hide (void) {
if (eqwin) {
gtk_widget_hide (eqwin);
}
}
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