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rockbox/apps/menus/eq_menu.c
Aidan MacDonald d541a72a0e Bugfixes in eq_menu.c 
Change-Id: Ibf754554f685d13ac00a49694fcecee459ff838f
2021-08-06 18:23:57 +00:00

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Dan Everton
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include "eq_menu.h"
#include "system.h"
#include "kernel.h"
#include "lcd.h"
#include "list.h"
#include "menu.h"
#include "action.h"
#include "settings.h"
#include "rbpaths.h"
#include "screens.h"
#include "icons.h"
#include "font.h"
#include "lang.h"
#include "talk.h"
#include "misc.h"
#include "sound.h"
#include "dsp_proc_settings.h"
#include "tree.h"
#include "screen_access.h"
#include "keyboard.h"
#include "gui/scrollbar.h"
#include "menu_common.h"
#include "viewport.h"
#include "exported_menus.h"
#include "pcmbuf.h"
#include "option_select.h"
/*
* Utility functions
*/
const char* eq_q_format(char* buffer, size_t buffer_size, int value, const char* unit)
{
snprintf(buffer, buffer_size, "%d.%d %s", value / EQ_USER_DIVISOR,
value % EQ_USER_DIVISOR, unit);
return buffer;
}
const char* eq_precut_format(char* buffer, size_t buffer_size, int value, const char* unit)
{
snprintf(buffer, buffer_size, "%s%d.%d %s", value == 0 ? " " : "-",
value / EQ_USER_DIVISOR, value % EQ_USER_DIVISOR, unit);
return buffer;
}
/*
* Settings functions
*/
static void eq_apply(void)
{
dsp_eq_enable(global_settings.eq_enabled);
dsp_set_eq_precut(global_settings.eq_precut);
/* Update all bands */
for(int i = 0; i < EQ_NUM_BANDS; i++) {
dsp_set_eq_coefs(i, &global_settings.eq_band_settings[i]);
}
}
static int eq_setting_callback(int action,
const struct menu_item_ex *this_item,
struct gui_synclist *this_list)
{
(void)this_list;
switch (action)
{
case ACTION_ENTER_MENUITEM:
action = lowlatency_callback(action, this_item, NULL);
break;
case ACTION_EXIT_MENUITEM:
eq_apply();
action = lowlatency_callback(action, this_item, NULL);
break;
}
return action;
}
MENUITEM_SETTING(eq_enable, &global_settings.eq_enabled, eq_setting_callback);
MENUITEM_SETTING(eq_precut, &global_settings.eq_precut, eq_setting_callback);
static char* gainitem_get_name(int selected_item, void *data, char *buffer, size_t len)
{
(void)data;
snprintf(buffer, len, str(LANG_EQUALIZER_GAIN_ITEM),
global_settings.eq_band_settings[selected_item].cutoff);
return buffer;
}
static int gainitem_speak_item(int selected_item, void *data)
{
(void)data;
talk_number(global_settings.eq_band_settings[selected_item].cutoff, false);
talk_id(LANG_EQUALIZER_GAIN_ITEM, true);
return 0;
}
static enum themable_icons gainitem_get_icon(int selected_item, void * data)
{
(void)selected_item;
(void)data;
return Icon_Menu_functioncall;
}
static const char* db_format(char* buffer, size_t buffer_size, int value,
const char* unit)
{
int v = abs(value);
snprintf(buffer, buffer_size, "%s%d.%d %s", value < 0 ? "-" : "",
v / 10, v % 10, unit);
return buffer;
}
static int32_t get_dec_talkid(int value, int unit)
{
return TALK_ID_DECIMAL(value, 1, unit);
}
static const struct int_setting gain_int_setting = {
.option_callback = NULL,
.unit = UNIT_DB,
.min = EQ_GAIN_MIN,
.max = EQ_GAIN_MAX,
.step = EQ_GAIN_STEP,
.formatter = db_format,
.get_talk_id = get_dec_talkid,
};
static const struct int_setting q_int_setting = {
.option_callback = NULL,
.unit = UNIT_INT,
.min = EQ_Q_MIN,
.max = EQ_Q_MAX,
.step = EQ_Q_STEP,
.formatter = eq_q_format,
.get_talk_id = get_dec_talkid,
};
static const struct int_setting cutoff_int_setting = {
.option_callback = NULL,
.unit = UNIT_HERTZ,
.min = EQ_CUTOFF_MIN,
.max = EQ_CUTOFF_MAX,
.step = EQ_CUTOFF_STEP,
.formatter = NULL,
.get_talk_id = NULL,
};
static int simplelist_action_callback(int action, struct gui_synclist *lists)
{
(void)lists;
if (action == ACTION_STD_OK)
return ACTION_STD_CANCEL;
return action;
}
static int eq_do_simple_menu(void * param)
{
(void)param;
struct simplelist_info info;
struct settings_list setting;
char title[MAX_PATH];
simplelist_info_init(&info, str(LANG_EQUALIZER_GAIN), EQ_NUM_BANDS, NULL);
info.get_name = (list_get_name*)gainitem_get_name;
info.get_talk = gainitem_speak_item;
info.get_icon = gainitem_get_icon;
info.action_callback = simplelist_action_callback;
info.selection = -1;
info.title_icon = Icon_Submenu;
setting.flags = F_BANFROMQS|F_INT_SETTING|F_T_INT|F_NO_WRAP;
setting.lang_id = LANG_GAIN;
setting.default_val.int_ = 0;
setting.int_setting = &gain_int_setting;
while (true)
{
simplelist_show_list(&info);
if (info.selection < 0)
break;
pcmbuf_set_low_latency(true);
setting.setting = &global_settings.eq_band_settings[info.selection].gain;
option_screen(&setting, NULL, false,
gainitem_get_name(info.selection, NULL, title, MAX_PATH));
eq_apply();
pcmbuf_set_low_latency(false);
}
return 0;
}
MENUITEM_FUNCTION(gain_menu, 0, ID2P(LANG_EQUALIZER_GAIN), eq_do_simple_menu,
NULL, NULL, Icon_Submenu);
static void selection_to_banditem(int selection, int expanded_band, int *band, int *item)
{
int diff = selection - expanded_band;
if (expanded_band < 0 || diff < 0)
{
*item = 0;
*band = selection;
}
else if (diff < 4)
{
*item = selection - expanded_band;
*band = expanded_band;
}
else
{
*item = 0;
*band = expanded_band + diff - 3;
}
}
static char *advancedmenu_item_get_name(int selected_item, void *data, char *buffer, size_t len)
{
int band;
int item;
int lang = -1;
selection_to_banditem(selected_item, *(intptr_t*)data, &band, &item);
switch (item)
{
case 0: /* Band title */
if (band == 0)
return str(LANG_EQUALIZER_BAND_LOW_SHELF);
else if (band == EQ_NUM_BANDS - 1)
return str(LANG_EQUALIZER_BAND_HIGH_SHELF);
else
{
snprintf(buffer, len, str(LANG_EQUALIZER_BAND_PEAK), band);
return buffer;
}
break;
case 1: /* cutoff */
if (band == 0)
lang = LANG_EQUALIZER_BAND_CUTOFF;
else if (band == EQ_NUM_BANDS - 1)
lang = LANG_EQUALIZER_BAND_CUTOFF;
else
lang = LANG_EQUALIZER_BAND_CENTER;
break;
case 2: /* Q */
lang = LANG_EQUALIZER_BAND_Q;
break;
case 3: /* Gain */
lang = LANG_GAIN;
break;
}
if(lang < 0)
buffer[0] = 0;
else {
buffer[0] = '\t';
strlcpy(&buffer[1], str(lang), len - 1);
}
return buffer;
}
static int advancedmenu_speak_item(int selected_item, void *data)
{
(void)data;
int band;
int item;
int lang = -1;
selection_to_banditem(selected_item, *(intptr_t*)data, &band, &item);
switch (item)
{
case 0: /* Band title */
if (band == 0)
lang = LANG_EQUALIZER_BAND_LOW_SHELF;
else if (band == EQ_NUM_BANDS - 1)
lang = LANG_EQUALIZER_BAND_HIGH_SHELF;
else
{
talk_id(LANG_EQUALIZER_BAND_PEAK, false);
talk_number(band, true);
return -1;
}
break;
case 1: /* cutoff */
if (band == 0)
lang = LANG_EQUALIZER_BAND_CUTOFF;
else if (band == EQ_NUM_BANDS - 1)
lang = LANG_EQUALIZER_BAND_CUTOFF;
else
lang = LANG_EQUALIZER_BAND_CENTER;
break;
case 2: /* Q */
lang = LANG_EQUALIZER_BAND_Q;
break;
case 3: /* Gain */
lang = LANG_GAIN;
break;
}
talk_id(lang, true);
return -1;
}
static enum themable_icons advancedmenu_get_icon(int selected_item, void * data)
{
(void)data;
int band;
int item;
selection_to_banditem(selected_item, *(intptr_t*)data, &band, &item);
if (item == 0)
return Icon_Submenu;
else
return Icon_Menu_setting;
}
extern struct eq_band_setting eq_defaults[EQ_NUM_BANDS];
static int eq_do_advanced_menu(void * param)
{
(void)param;
struct simplelist_info info;
struct settings_list setting;
char title[MAX_PATH];
int band, item;
intptr_t selected_band = -1;
simplelist_info_init(&info, str(LANG_EQUALIZER_ADVANCED),
EQ_NUM_BANDS, &selected_band);
info.get_name = (list_get_name*)advancedmenu_item_get_name;
info.get_talk = advancedmenu_speak_item;
info.get_icon = advancedmenu_get_icon;
info.action_callback = simplelist_action_callback;
info.selection = -1;
info.title_icon = Icon_EQ;
setting.flags = F_BANFROMQS|F_INT_SETTING|F_T_INT|F_NO_WRAP;
while (true)
{
simplelist_show_list(&info);
if (info.selection < 0)
break;
selection_to_banditem(info.selection, selected_band, &band, &item);
switch (item)
{
case 0: /* title, do nothing */
{
int extra;
if (selected_band == band)
{
extra = 0;
selected_band = -1;
}
else
{
extra = 3;
selected_band = band;
}
info.selection = band;
info.count = EQ_NUM_BANDS + extra;
continue;
}
case 1: /* cutoff */
if (band == 0 || band == EQ_NUM_BANDS - 1)
setting.lang_id = LANG_EQUALIZER_BAND_CUTOFF;
else
setting.lang_id = LANG_EQUALIZER_BAND_CENTER;
setting.default_val.int_ = eq_defaults[band].cutoff;
setting.int_setting = &cutoff_int_setting;
setting.setting = &global_settings.eq_band_settings[band].cutoff;
break;
case 2: /* Q */
setting.lang_id = LANG_EQUALIZER_BAND_Q;
setting.default_val.int_ = eq_defaults[band].q;
setting.int_setting = &q_int_setting;
setting.setting = &global_settings.eq_band_settings[band].q;
break;
case 3: /* Gain */
setting.lang_id = LANG_GAIN;
setting.default_val.int_ = eq_defaults[band].gain;
setting.int_setting = &gain_int_setting;
setting.setting = &global_settings.eq_band_settings[band].gain;
break;
}
pcmbuf_set_low_latency(true);
advancedmenu_item_get_name(info.selection, &selected_band, title, MAX_PATH);
option_screen(&setting, NULL, false, title[0] == '\t' ? &title[1] : title);
eq_apply();
pcmbuf_set_low_latency(false);
}
return 0;
}
MENUITEM_FUNCTION(advanced_menu, 0, ID2P(LANG_EQUALIZER_ADVANCED),
eq_do_advanced_menu, NULL, NULL, Icon_EQ);
enum eq_slider_mode {
GAIN,
CUTOFF,
Q,
};
enum eq_type {
LOW_SHELF,
PEAK,
HIGH_SHELF
};
/* Size of just the slider/srollbar */
#define SCROLLBAR_SIZE 6
/* Draw the UI for a whole EQ band */
static int draw_eq_slider(struct screen * screen, int x, int y,
int width, int cutoff, int q, int gain, bool selected,
enum eq_slider_mode mode, int band)
{
char buf[26];
int steps, min_item, max_item;
int abs_gain = abs(gain);
int x1, x2, y1, total_height;
int w, h;
switch(mode) {
case Q:
steps = EQ_Q_MAX - EQ_Q_MIN;
min_item = q - EQ_Q_STEP - EQ_Q_MIN;
max_item = q + EQ_Q_STEP - EQ_Q_MIN;
break;
case CUTOFF:
steps = EQ_CUTOFF_MAX - EQ_CUTOFF_MIN;
min_item = cutoff - EQ_CUTOFF_FAST_STEP * 2;
max_item = cutoff + EQ_CUTOFF_FAST_STEP * 2;
break;
case GAIN:
default:
steps = EQ_GAIN_MAX - EQ_GAIN_MIN;
min_item = abs(EQ_GAIN_MIN) + gain - EQ_GAIN_STEP * 5;
max_item = abs(EQ_GAIN_MIN) + gain + EQ_GAIN_STEP * 5;
break;
}
/* Start two pixels in, one for border, one for margin */
x1 = x + 2;
y1 = y + 2;
/* Print out the band label */
if (band == 0) {
screen->putsxy(x1, y1, "LS: ");
screen->getstringsize("LS:", &w, &h);
} else if (band == EQ_NUM_BANDS - 1) {
screen->putsxy(x1, y1, "HS: ");
screen->getstringsize("HS:", &w, &h);
} else {
snprintf(buf, sizeof(buf), "PK%d:", band);
screen->putsxy(x1, y1, buf);
screen->getstringsize(buf, &w, &h);
}
screen->getstringsize("A", &w, &h);
x1 += 5*w; /* 4 chars for label + 1 space = 5 */
/* Print out gain part of status line (left justify after label) */
if (mode == GAIN && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
else
screen->set_drawmode(DRMODE_SOLID);
snprintf(buf, sizeof(buf), "%s%2d.%d%s", gain < 0 ? "-" : " ",
abs_gain / EQ_USER_DIVISOR, abs_gain % EQ_USER_DIVISOR,
screen->lcdwidth >= 160 ? "dB" : "");
screen->putsxy(x1, y1, buf);
screen->getstringsize(buf, &w, &h);
x1 += w;
/* Print out Q part of status line (right justify) */
if (mode == Q && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
else
screen->set_drawmode(DRMODE_SOLID);
snprintf(buf, sizeof(buf), "%d.%d%s", q / EQ_USER_DIVISOR,
q % EQ_USER_DIVISOR, screen->lcdwidth >= 160 ? " Q" : "");
screen->getstringsize(buf, &w, &h);
x2 = x + width - w - 2;
screen->putsxy(x2, y1, buf);
/* Print out cutoff part of status line (center between gain & Q) */
if (mode == CUTOFF && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
else
screen->set_drawmode(DRMODE_SOLID);
snprintf(buf, sizeof(buf), "%5d%s", cutoff,
screen->lcdwidth >= 160 ? "Hz" : "");
screen->getstringsize(buf, &w, &h);
x1 = x1 + (x2 - x1 - w)/2;
screen->putsxy(x1, y1, buf);
/* Draw selection box */
total_height = 3 + h + 1 + SCROLLBAR_SIZE + 3;
screen->set_drawmode(DRMODE_SOLID);
if (selected) {
screen->drawrect(x, y, width, total_height);
}
/* Draw horizontal slider. Reuse scrollbar for this */
gui_scrollbar_draw(screen, x + 3, y1 + h + 1, width - 6, SCROLLBAR_SIZE,
steps, min_item, max_item, HORIZONTAL);
return total_height;
}
/* Draw's all the EQ sliders. Returns the total height of the sliders drawn */
static void draw_eq_sliders(struct screen * screen, int x, int y,
int nb_eq_sliders, int start_item,
int current_band, enum eq_slider_mode mode)
{
int height = y;
start_item = MIN(start_item, EQ_NUM_BANDS - nb_eq_sliders);
for (int i = 0; i < EQ_NUM_BANDS; i++) {
struct eq_band_setting *setting = &global_settings.eq_band_settings[i];
int cutoff = setting->cutoff;
int q = setting->q;
int gain = setting->gain;
if (i == start_item + nb_eq_sliders)
break;
if (i >= start_item) {
height += draw_eq_slider(screen, x, height, screen->lcdwidth - x - 1,
cutoff, q, gain, i == current_band, mode,
i);
/* add a margin */
height++;
}
}
if (nb_eq_sliders != EQ_NUM_BANDS)
gui_scrollbar_draw(screen, 0, y, SCROLLBAR_SIZE - 1,
screen->lcdheight - y, EQ_NUM_BANDS,
start_item, start_item + nb_eq_sliders,
VERTICAL);
return;
}
/* Provides a graphical means of editing the EQ settings */
int eq_menu_graphical(void)
{
bool exit_request = false;
bool result = true;
bool has_changed = false;
int button;
int *setting;
int current_band, x, y, step, fast_step, min, max;
enum eq_slider_mode mode;
char buf[24];
int w, h, height, start_item, nb_eq_sliders[NB_SCREENS];
FOR_NB_SCREENS(i)
viewportmanager_theme_enable(i, false, NULL);
FOR_NB_SCREENS(i) {
screens[i].set_viewport(NULL);
screens[i].setfont(FONT_SYSFIXED);
screens[i].clear_display();
/* Figure out how many sliders can be drawn on the screen */
screens[i].getstringsize("A", &w, &h);
/* Total height includes margins (1), text, slider, and line selector (1) */
height = 3 + h + 1 + SCROLLBAR_SIZE + 3;
nb_eq_sliders[i] = screens[i].lcdheight / height;
/* Make sure the "Edit Mode" text fits too */
height = nb_eq_sliders[i]*height + h + 2;
if (height > screens[i].lcdheight)
nb_eq_sliders[i]--;
if (nb_eq_sliders[i] > EQ_NUM_BANDS)
nb_eq_sliders[i] = EQ_NUM_BANDS;
}
y = h + 1;
/* Start off editing gain on the first band */
mode = GAIN;
current_band = 0;
while (!exit_request) {
FOR_NB_SCREENS(i)
{
screens[i].clear_display();
/* Set pointer to the band data currently editable */
if (mode == GAIN) {
/* gain */
setting = &global_settings.eq_band_settings[current_band].gain;
step = EQ_GAIN_STEP;
fast_step = EQ_GAIN_FAST_STEP;
min = EQ_GAIN_MIN;
max = EQ_GAIN_MAX;
snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
str(LANG_SYSFONT_GAIN), "(dB)");
screens[i].putsxy(0, 0, buf);
} else if (mode == CUTOFF) {
/* cutoff */
setting = &global_settings.eq_band_settings[current_band].cutoff;
step = EQ_CUTOFF_STEP;
fast_step = EQ_CUTOFF_FAST_STEP;
min = EQ_CUTOFF_MIN;
max = EQ_CUTOFF_MAX;
snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
str(LANG_SYSFONT_EQUALIZER_BAND_CUTOFF), "(Hz)");
screens[i].putsxy(0, 0, buf);
} else {
/* Q */
setting = &global_settings.eq_band_settings[current_band].q;
step = EQ_Q_STEP;
fast_step = EQ_Q_FAST_STEP;
min = EQ_Q_MIN;
max = EQ_Q_MAX;
snprintf(buf, sizeof(buf), str(LANG_SYSFONT_EQUALIZER_EDIT_MODE),
str(LANG_SYSFONT_EQUALIZER_BAND_Q), "");
screens[i].putsxy(0, 0, buf);
}
/* Draw scrollbar if needed */
if (nb_eq_sliders[i] != EQ_NUM_BANDS)
{
if (current_band == 0) {
start_item = 0;
} else if (current_band == 9) {
start_item = EQ_NUM_BANDS - nb_eq_sliders[i];
} else {
start_item = current_band - 1;
}
x = SCROLLBAR_SIZE;
} else {
x = 1;
start_item = 0;
}
/* Draw equalizer band details */
draw_eq_sliders(&screens[i], x, y, nb_eq_sliders[i], start_item,
current_band, mode);
screens[i].update();
}
button = get_action(CONTEXT_SETTINGS_EQ,TIMEOUT_BLOCK);
switch (button) {
case ACTION_SETTINGS_DEC:
case ACTION_SETTINGS_DECREPEAT:
*(setting) -= step;
has_changed = true;
if (*(setting) < min)
*(setting) = min;
break;
case ACTION_SETTINGS_INC:
case ACTION_SETTINGS_INCREPEAT:
*(setting) += step;
has_changed = true;
if (*(setting) > max)
*(setting) = max;
break;
case ACTION_SETTINGS_INCBIGSTEP:
*(setting) += fast_step;
has_changed = true;
if (*(setting) > max)
*(setting) = max;
break;
case ACTION_SETTINGS_DECBIGSTEP:
*(setting) -= fast_step;
has_changed = true;
if (*(setting) < min)
*(setting) = min;
break;
case ACTION_STD_PREV:
case ACTION_STD_PREVREPEAT:
current_band--;
if (current_band < 0)
current_band = EQ_NUM_BANDS - 1; /* wrap around */
break;
case ACTION_STD_NEXT:
case ACTION_STD_NEXTREPEAT:
current_band = (current_band + 1) % EQ_NUM_BANDS;
break;
case ACTION_STD_OK:
mode++;
if (mode > Q)
mode = GAIN; /* wrap around */
break;
case ACTION_STD_CANCEL:
exit_request = true;
result = false;
break;
default:
if(default_event_handler(button) == SYS_USB_CONNECTED) {
exit_request = true;
result = true;
}
break;
}
/* Update the filter if the user changed something */
if (has_changed) {
dsp_set_eq_coefs(current_band,
&global_settings.eq_band_settings[current_band]);
has_changed = false;
}
}
/* Reset screen settings */
FOR_NB_SCREENS(i)
{
screens[i].setfont(FONT_UI);
screens[i].clear_display();
screens[i].set_viewport(NULL);
viewportmanager_theme_undo(i, false);
}
return (result) ? 1 : 0;
}
static int eq_save_preset(void)
{
/* make sure that the eq is enabled for setting saving */
bool enabled = global_settings.eq_enabled;
global_settings.eq_enabled = true;
bool result = settings_save_config(SETTINGS_SAVE_EQPRESET);
global_settings.eq_enabled = enabled;
return (result) ? 1 : 0;
}
/* Allows browsing of preset files */
static struct browse_folder_info eqs = { EQS_DIR, SHOW_CFG };
MENUITEM_FUNCTION(eq_graphical, 0, ID2P(LANG_EQUALIZER_GRAPHICAL),
eq_menu_graphical, NULL, lowlatency_callback,
Icon_EQ);
MENUITEM_FUNCTION(eq_save, 0, ID2P(LANG_EQUALIZER_SAVE),
eq_save_preset, NULL, NULL, Icon_NOICON);
MENUITEM_FUNCTION(eq_browse, MENU_FUNC_USEPARAM, ID2P(LANG_EQUALIZER_BROWSE),
browse_folder, (void*)&eqs, lowlatency_callback,
Icon_NOICON);
MAKE_MENU(equalizer_menu, ID2P(LANG_EQUALIZER), NULL, Icon_EQ,
&eq_enable, &eq_graphical, &eq_precut, &gain_menu,
&advanced_menu, &eq_save, &eq_browse);
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