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rockbox/apps/eq_menu.c
Dan Everton 5a1d77de83 Reduce CPU usage while changing EQ by only updating the coefficients of the band being modified. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8718 a1c6a512-1295-4272-9138-f99709370657
2006-02-17 19:56:22 +00:00

741 lines
20 KiB
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 Dan Everton
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* 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 "menu.h"
#include "button.h"
#include "mp3_playback.h"
#include "settings.h"
#include "statusbar.h"
#include "screens.h"
#include "icons.h"
#include "font.h"
#include "widgets.h"
#include "lang.h"
#include "sprintf.h"
#include "talk.h"
#include "misc.h"
#include "sound.h"
#include "splash.h"
#include "dsp.h"
#include "tree.h"
#include "talk.h"
#include "screen_access.h"
#include "keyboard.h"
/* Key definitions */
#if (CONFIG_KEYPAD == IRIVER_H100_PAD || \
CONFIG_KEYPAD == IRIVER_H300_PAD)
#define EQ_BTN_MODIFIER BUTTON_ON
#define EQ_BTN_DECREMENT BUTTON_LEFT
#define EQ_BTN_INCREMENT BUTTON_RIGHT
#define EQ_BTN_NEXT_BAND BUTTON_DOWN
#define EQ_BTN_PREV_BAND BUTTON_UP
#define EQ_BTN_CHANGE_MODE BUTTON_SELECT
#define EQ_BTN_EXIT BUTTON_OFF
#elif (CONFIG_KEYPAD == IPOD_4G_PAD)
#define EQ_BTN_DECREMENT BUTTON_SCROLL_BACK
#define EQ_BTN_INCREMENT BUTTON_SCROLL_FWD
#define EQ_BTN_NEXT_BAND BUTTON_RIGHT
#define EQ_BTN_PREV_BAND BUTTON_LEFT
#define EQ_BTN_CHANGE_MODE BUTTON_SELECT
#define EQ_BTN_EXIT BUTTON_MENU
#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
#define EQ_BTN_DECREMENT BUTTON_LEFT
#define EQ_BTN_INCREMENT BUTTON_RIGHT
#define EQ_BTN_NEXT_BAND BUTTON_DOWN
#define EQ_BTN_PREV_BAND BUTTON_UP
#define EQ_BTN_CHANGE_MODE BUTTON_REC
#define EQ_BTN_EXIT BUTTON_MENU
#elif (CONFIG_KEYPAD == IRIVER_IFP7XX_PAD)
#define EQ_BTN_DECREMENT BUTTON_LEFT
#define EQ_BTN_INCREMENT BUTTON_RIGHT
#define EQ_BTN_NEXT_BAND BUTTON_DOWN
#define EQ_BTN_PREV_BAND BUTTON_UP
#define EQ_BTN_CHANGE_MODE BUTTON_SELECT
#define EQ_BTN_EXIT BUTTON_PLAY
#endif
#define EQ_CUTOFF_MIN 20
#define EQ_CUTOFF_MAX 22040
#define EQ_CUTOFF_STEP 10
#define EQ_CUTOFF_FAST_STEP 100
#define EQ_GAIN_MIN (-240)
#define EQ_GAIN_MAX 240
#define EQ_GAIN_STEP 1
#define EQ_GAIN_FAST_STEP 10
#define EQ_Q_MIN 5
#define EQ_Q_MAX 64
#define EQ_Q_STEP 1
#define EQ_Q_FAST_STEP 10
#define EQ_USER_DIVISOR 10
static bool eq_enabled(void)
{
int i;
bool result = set_bool(str(LANG_EQUALIZER_ENABLED),
&global_settings.eq_enabled);
/* Update all bands */
for(i = 0; i < 5; i++) {
dsp_eq_update_data(global_settings.eq_enabled, i);
}
return result;
}
static void eq_gain_format(char* buffer, int buffer_size, int value, const char* unit)
{
int v = abs(value);
snprintf(buffer, buffer_size, "%s%d.%d %s", value < 0 ? "-" : "",
v / EQ_USER_DIVISOR, v % EQ_USER_DIVISOR, unit);
}
static void eq_q_format(char* buffer, int buffer_size, int value, const char* unit)
{
snprintf(buffer, buffer_size, "%d.%d %s", value / EQ_USER_DIVISOR, value % EQ_USER_DIVISOR, unit);
}
/* Possibly dodgy way of simplifying the code a bit. */
#define eq_make_gain_label(buf, bufsize, frequency) snprintf((buf), \
(bufsize), str(LANG_EQUALIZER_GAIN_ITEM), (frequency))
#define eq_set_center(band) \
static bool eq_set_band ## band ## _center(void) \
{ \
bool result = set_int(str(LANG_EQUALIZER_BAND_CENTER), "Hertz", UNIT_HERTZ, \
&global_settings.eq_band ## band ## _cutoff, NULL, \
EQ_CUTOFF_STEP, EQ_CUTOFF_MIN, EQ_CUTOFF_MAX, NULL); \
dsp_eq_update_data(global_settings.eq_enabled, band); \
return result; \
}
#define eq_set_cutoff(band) \
static bool eq_set_band ## band ## _cutoff(void) \
{ \
bool result = set_int(str(LANG_EQUALIZER_BAND_CUTOFF), "Hertz", UNIT_HERTZ, \
&global_settings.eq_band ## band ## _cutoff, NULL, \
EQ_CUTOFF_STEP, EQ_CUTOFF_MIN, EQ_CUTOFF_MAX, NULL); \
dsp_eq_update_data(global_settings.eq_enabled, band); \
return result; \
}
#define eq_set_q(band) \
static bool eq_set_band ## band ## _q(void) \
{ \
bool result = set_int(str(LANG_EQUALIZER_BAND_Q), "Q", UNIT_INT, \
&global_settings.eq_band ## band ## _q, NULL, \
EQ_Q_STEP, EQ_Q_MIN, EQ_Q_MAX, eq_q_format); \
dsp_eq_update_data(global_settings.eq_enabled, band); \
return result; \
}
#define eq_set_gain(band) \
static bool eq_set_band ## band ## _gain(void) \
{ \
bool result = set_int("Band " #band, str(LANG_UNIT_DB), UNIT_DB, \
&global_settings.eq_band ## band ## _gain, NULL, \
EQ_GAIN_STEP, EQ_GAIN_MIN, EQ_GAIN_MAX, eq_gain_format); \
dsp_eq_update_data(global_settings.eq_enabled, band); \
return result; \
}
eq_set_cutoff(0);
eq_set_center(1);
eq_set_center(2);
eq_set_center(3);
eq_set_cutoff(4);
eq_set_q(0);
eq_set_q(1);
eq_set_q(2);
eq_set_q(3);
eq_set_q(4);
eq_set_gain(0);
eq_set_gain(1);
eq_set_gain(2);
eq_set_gain(3);
eq_set_gain(4);
static bool eq_gain_menu(void)
{
int m, i;
int *setting;
bool result;
char gain_label[5][24];
static struct menu_item items[5] = {
{ NULL, eq_set_band0_gain },
{ NULL, eq_set_band1_gain },
{ NULL, eq_set_band2_gain },
{ NULL, eq_set_band3_gain },
{ NULL, eq_set_band4_gain },
};
setting = &global_settings.eq_band0_cutoff;
/* Construct menu labels */
for(i = 0; i < 5; i++) {
eq_make_gain_label(gain_label[i], sizeof(gain_label[i]),
*setting);
items[i].desc = gain_label[i];
/* Skip to next band */
setting += 3;
}
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_set_band0(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_CUTOFF), eq_set_band0_cutoff },
{ ID2P(LANG_EQUALIZER_BAND_Q), eq_set_band0_q },
{ ID2P(LANG_EQUALIZER_BAND_GAIN), eq_set_band0_gain },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_set_band1(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_CENTER), eq_set_band1_center },
{ ID2P(LANG_EQUALIZER_BAND_Q), eq_set_band1_q },
{ ID2P(LANG_EQUALIZER_BAND_GAIN), eq_set_band1_gain },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_set_band2(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_CENTER), eq_set_band2_center },
{ ID2P(LANG_EQUALIZER_BAND_Q), eq_set_band2_q },
{ ID2P(LANG_EQUALIZER_BAND_GAIN), eq_set_band2_gain },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_set_band3(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_CENTER), eq_set_band3_center },
{ ID2P(LANG_EQUALIZER_BAND_Q), eq_set_band3_q },
{ ID2P(LANG_EQUALIZER_BAND_GAIN), eq_set_band3_gain },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_set_band4(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_CUTOFF), eq_set_band4_cutoff },
{ ID2P(LANG_EQUALIZER_BAND_Q), eq_set_band4_q },
{ ID2P(LANG_EQUALIZER_BAND_GAIN), eq_set_band4_gain },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
static bool eq_advanced_menu(void)
{
int m, i;
bool result;
char peak_band_label[3][32];
static struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_BAND_LOW_SHELF), eq_set_band0 },
{ NULL, eq_set_band1 },
{ NULL, eq_set_band2 },
{ NULL, eq_set_band3 },
{ ID2P(LANG_EQUALIZER_BAND_HIGH_SHELF), eq_set_band4 },
};
/* Construct menu labels */
for(i = 1; i < 4; i++) {
snprintf(peak_band_label[i-1], sizeof(peak_band_label[i-1]),
str(LANG_EQUALIZER_BAND_PEAK), i);
items[i].desc = peak_band_label[i-1];
}
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
#define SLIDER_KNOB_HEIGHT 6
#define SLIDER_KNOB_WIDTH 4
enum eq_slider_mode {
GAIN,
CUTOFF,
Q,
};
enum eq_type {
LOW_SHELF,
PEAK,
HIGH_SHELF
};
/* Draw a slider */
static void draw_slider(const struct screen * screen, int x, int y,
int width, int steps, int current_step)
{
int knob_x = ((width * 100 / steps) * current_step) / 100
+ (SLIDER_KNOB_WIDTH / 2);
/* Draw groove */
screen->fillrect(x, y + 2, width, 2);
/* Draw knob */
screen->fillrect(x + knob_x, y, SLIDER_KNOB_WIDTH, SLIDER_KNOB_HEIGHT);
}
/* Draw the UI for a whole EQ band */
static int draw_eq_slider(const struct screen * screen, int x, int y,
int width, int cutoff, int q, int gain, bool selected,
enum eq_slider_mode mode, enum eq_type type)
{
char buf[26];
const char separator[2] = " ";
int steps = EQ_GAIN_MAX - EQ_GAIN_MIN;
int abs_q = abs(q);
int abs_gain = abs(gain);
int current_x, total_height, separator_width, separator_height;
int w, h;
/* Start two pixels in, one for border, one for margin */
current_x = x + 2;
/* Figure out how large our separator string is */
screen->getstringsize(separator, &separator_width, &separator_height);
/* Total height includes margins, text, and line selector */
total_height = separator_height + SLIDER_KNOB_HEIGHT + 2 + 3;
/* Print out the band label */
if (type == LOW_SHELF) {
screen->putsxy(current_x, y + 2, "LS:");
screen->getstringsize("LS:", &w, &h);
} else if (type == HIGH_SHELF) {
screen->putsxy(current_x, y + 2, "HS:");
screen->getstringsize("HS:", &w, &h);
} else {
screen->putsxy(current_x, y + 2, "PK:");
screen->getstringsize("PK:", &w, &h);
}
current_x += w;
/* Print separator */
screen->set_drawmode(DRMODE_SOLID);
screen->putsxy(current_x, y + 2, separator);
current_x += separator_width;
/* Print out gain part of status line */
snprintf(buf, sizeof(buf), "%s%2d.%ddB", gain < 0 ? "-" : " ",
abs_gain / EQ_USER_DIVISOR, abs_gain % EQ_USER_DIVISOR);
if (mode == GAIN && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
screen->putsxy(current_x, y + 2, buf);
screen->getstringsize(buf, &w, &h);
current_x += w;
/* Print separator */
screen->set_drawmode(DRMODE_SOLID);
screen->putsxy(current_x, y + 2, separator);
current_x += separator_width;
/* Print out cutoff part of status line */
snprintf(buf, sizeof(buf), "%5dHz", cutoff);
if (mode == CUTOFF && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
screen->putsxy(current_x, y + 2, buf);
screen->getstringsize(buf, &w, &h);
current_x += w;
/* Print separator */
screen->set_drawmode(DRMODE_SOLID);
screen->putsxy(current_x, y + 2, separator);
current_x += separator_width;
/* Print out Q part of status line */
snprintf(buf, sizeof(buf), "%d.%d Q", abs_q / EQ_USER_DIVISOR,
abs_q % EQ_USER_DIVISOR);
if (mode == Q && selected)
screen->set_drawmode(DRMODE_SOLID | DRMODE_INVERSEVID);
screen->putsxy(current_x, y + 2, buf);
screen->getstringsize(buf, &w, &h);
current_x += w;
screen->set_drawmode(DRMODE_SOLID);
/* Draw selection box */
if (selected) {
screen->drawrect(x, y, width, total_height);
}
/* Draw horizontal slider */
draw_slider(screen, x + 3, y + h + 3, width - 6, steps,
abs(EQ_GAIN_MIN) + gain);
return total_height;
}
/* Draw's all the EQ sliders. Returns the total height of the sliders drawn */
static int draw_eq_sliders(int current_band, enum eq_slider_mode mode)
{
int i, gain, q, cutoff;
int height = 2; /* Two pixel margin */
int slider_width = screens[SCREEN_MAIN].width - 4; /* two pixel margin on each side */
int *setting = &global_settings.eq_band0_cutoff;
enum eq_type type;
for( i = 0; i < 5; ++i) {
cutoff = *setting++;
q = *setting++;
gain = *setting++;
if (i == 0) {
type = LOW_SHELF;
} else if (i == 4) {
type = HIGH_SHELF;
} else {
type = PEAK;
}
height += draw_eq_slider(&(screens[SCREEN_MAIN]), 2, height,
slider_width, cutoff, q, gain, i == current_band, mode, type);
/* add a margin */
height += 2;
}
return height;
}
/* Provides a graphical means of editing the EQ settings */
bool eq_menu_graphical(void)
{
bool exit_request = false;
bool result = true;
bool has_changed = false;
int button;
int *setting;
int current_band, y, step, fast_step, min, max, voice_unit;
enum eq_slider_mode mode;
enum eq_type current_type;
char buf[24];
screens[SCREEN_MAIN].setfont(FONT_SYSFIXED);
screens[SCREEN_MAIN].clear_display();
/* Start off editing gain on the first band */
mode = GAIN;
current_type = LOW_SHELF;
current_band = 0;
while (!exit_request) {
/* Clear the screen. The drawing routines expect this */
screens[SCREEN_MAIN].clear_display();
/* Draw equalizer band details */
y = draw_eq_sliders(current_band, mode);
/* Set pointer to the band data currently editable */
if (mode == GAIN) {
/* gain */
setting = &global_settings.eq_band0_gain;
setting += current_band * 3;
step = EQ_GAIN_STEP;
fast_step = EQ_GAIN_FAST_STEP;
min = EQ_GAIN_MIN;
max = EQ_GAIN_MAX;
voice_unit = UNIT_DB;
snprintf(buf, sizeof(buf), str(LANG_EQUALIZER_EDIT_MODE),
str(LANG_EQUALIZER_BAND_GAIN));
screens[SCREEN_MAIN].putsxy(2, y, buf);
} else if (mode == CUTOFF) {
/* cutoff */
setting = &global_settings.eq_band0_cutoff;
setting += current_band * 3;
step = EQ_CUTOFF_STEP;
fast_step = EQ_CUTOFF_FAST_STEP;
min = EQ_CUTOFF_MIN;
max = EQ_CUTOFF_MAX;
voice_unit = UNIT_HERTZ;
snprintf(buf, sizeof(buf), str(LANG_EQUALIZER_EDIT_MODE),
str(LANG_EQUALIZER_BAND_CUTOFF));
screens[SCREEN_MAIN].putsxy(2, y, buf);
} else {
/* Q */
setting = &global_settings.eq_band0_q;
setting += current_band * 3;
step = EQ_Q_STEP;
fast_step = EQ_Q_FAST_STEP;
min = EQ_Q_MIN;
max = EQ_Q_MAX;
voice_unit = UNIT_INT;
snprintf(buf, sizeof(buf), str(LANG_EQUALIZER_EDIT_MODE),
str(LANG_EQUALIZER_BAND_Q));
screens[SCREEN_MAIN].putsxy(2, y, buf);
}
screens[SCREEN_MAIN].update();
button = button_get(true);
switch (button) {
case EQ_BTN_DECREMENT:
case EQ_BTN_DECREMENT | BUTTON_REPEAT:
*(setting) -= step;
has_changed = true;
if (*(setting) < min)
*(setting) = min;
break;
case EQ_BTN_INCREMENT:
case EQ_BTN_INCREMENT | BUTTON_REPEAT:
*(setting) += step;
has_changed = true;
if (*(setting) > max)
*(setting) = max;
break;
#ifdef EQ_BTN_MODIFIER
case EQ_BTN_MODIFIER | EQ_BTN_INCREMENT:
case EQ_BTN_MODIFIER | EQ_BTN_INCREMENT | BUTTON_REPEAT:
*(setting) += fast_step;
has_changed = true;
if (*(setting) > max)
*(setting) = max;
break;
case EQ_BTN_MODIFIER | EQ_BTN_DECREMENT:
case EQ_BTN_MODIFIER | EQ_BTN_DECREMENT | BUTTON_REPEAT:
*(setting) -= fast_step;
has_changed = true;
if (*(setting) < min)
*(setting) = min;
break;
#endif
case EQ_BTN_PREV_BAND:
case EQ_BTN_PREV_BAND | BUTTON_REPEAT:
current_band--;
if (current_band < 0)
current_band = 4; /* wrap around */
break;
case EQ_BTN_NEXT_BAND:
case EQ_BTN_NEXT_BAND | BUTTON_REPEAT:
current_band++;
if (current_band > 4)
current_band = 0; /* wrap around */
break;
case EQ_BTN_CHANGE_MODE:
case EQ_BTN_CHANGE_MODE | BUTTON_REPEAT:
mode++;
if (mode > Q)
mode = GAIN; /* wrap around */
break;
case EQ_BTN_EXIT:
case EQ_BTN_EXIT | BUTTON_REPEAT:
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_eq_update_data(global_settings.eq_enabled, current_band);
has_changed = false;
}
}
/* Reset screen settings */
screens[SCREEN_MAIN].setfont(FONT_UI);
screens[SCREEN_MAIN].clear_display();
return result;
}
/* Preset saver.
* TODO: Can the settings system be used to do this instead?
*/
static bool eq_save_preset(void)
{
int fd, i;
char filename[MAX_PATH];
int *setting;
create_numbered_filename(filename, EQS_DIR, "eq", ".cfg", 2);
/* allow user to modify filename */
while (true) {
if (!kbd_input(filename, sizeof filename)) {
fd = creat(filename,0);
if (fd < 0)
gui_syncsplash(HZ, true, str(LANG_FAILED));
else
break;
}
else {
gui_syncsplash(HZ, true, str(LANG_RESET_DONE_CANCEL));
return false;
}
}
/* TODO: Should we really do this? */
fdprintf(fd, "eq enabled: on\r\n");
setting = &global_settings.eq_band0_cutoff;
for(i = 0; i < 5; ++i) {
fdprintf(fd, "eq band %d cutoff: %d\r\n", i, *setting++);
fdprintf(fd, "eq band %d q: %d\r\n", i, *setting++);
fdprintf(fd, "eq band %d gain: %d\r\n", i, *setting++);
}
close(fd);
gui_syncsplash(HZ, true, (unsigned char *)"%s %s", str(LANG_SETTINGS_SAVED1),
str(LANG_SETTINGS_SAVED2));
return true;
}
/* Allows browsing of preset files */
bool eq_browse_presets(void)
{
return rockbox_browse(EQS_DIR, SHOW_CFG);
}
/* Full equalizer menu */
bool eq_menu(void)
{
int m;
bool result;
static const struct menu_item items[] = {
{ ID2P(LANG_EQUALIZER_ENABLED), eq_enabled },
{ ID2P(LANG_EQUALIZER_GRAPHICAL), eq_menu_graphical },
{ ID2P(LANG_EQUALIZER_GAIN), eq_gain_menu },
{ ID2P(LANG_EQUALIZER_ADVANCED), eq_advanced_menu },
{ ID2P(LANG_EQUALIZER_SAVE), eq_save_preset },
{ ID2P(LANG_EQUALIZER_BROWSE), eq_browse_presets },
};
m=menu_init( items, sizeof(items) / sizeof(*items), NULL,
NULL, NULL, NULL);
result = menu_run(m);
menu_exit(m);
return result;
}
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