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foxbox/apps/plugins/metronome.c

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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2004 Matthias Wientapper
*
* 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 "plugin.h"
#ifndef SIMULATOR
/* variable button definitions */
#if CONFIG_KEYPAD == RECORDER_PAD
#define METRONOME_QUIT BUTTON_OFF
#define METRONOME_PLAYPAUSE BUTTON_PLAY
#define METRONOME_VOL_UP BUTTON_UP
#define METRONOME_VOL_DOWN BUTTON_DOWN
#define METRONOME_TAP BUTTON_ON
#define METRONOME_MSG_START "press play"
#define METRONOME_MSG_STOP "press pause"
#elif CONFIG_KEYPAD == ONDIO_PAD
#define METRONOME_QUIT BUTTON_OFF
#define METRONOME_PLAY_TAP BUTTON_MENU
#define METRONOME_PAUSE (BUTTON_MENU | BUTTON_REPEAT)
#define METRONOME_VOL_UP BUTTON_UP
#define METRONOME_VOL_DOWN BUTTON_DOWN
#define METRONOME_MSG_START "start: mode"
#define METRONOME_MSG_STOP "pause: hold mode"
#elif CONFIG_KEYPAD == PLAYER_PAD
#define METRONOME_QUIT BUTTON_STOP
#define METRONOME_PLAYPAUSE BUTTON_PLAY
#define METRONOME_VOL_UP (BUTTON_ON | BUTTON_RIGHT)
#define METRONOME_VOL_DOWN (BUTTON_ON | BUTTON_LEFT)
#define METRONOME_TAP BUTTON_ON
#endif
static struct plugin_api* rb;
static int bpm = 120;
static int period = 0;
static int minitick = 0;
static bool sound_active = false;
static bool sound_paused = true;
static char buffer[30];
static bool reset_tap = false;
static int tap_count = 0;
static int tap_time = 0;
static int tap_timeout = 0;
/*tick sound from a metronome*/
static unsigned char sound[]={
255,251, 80,196, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 73,110,102,111, 0, 0, 0, 15, 0, 0, 0, 4, 0, 0, 4, 19, 0, 64, 64,
64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64,
64, 64, 64,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,
128,128,128,128,128,128,128,128,192,192,192,192,192,192,192,192,192,192,192,192,
192,192,192,192,192,192,192,192,192,192,192,192,192,255,255,255,255,255,255,255,
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, 0, 0, 0,
58, 76, 65, 77, 69, 51, 46, 57, 50, 32, 1,137, 0, 0, 0, 0, 0, 0, 0, 0,
2, 64, 36, 5,191, 65, 0, 0, 0, 0, 0, 4, 19,168,187,153, 93, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,255,251, 80,196, 0, 0, 10, 81, 57, 65,184,120,
128, 1, 95,159,239,191,144, 96, 0, 0,128, 0, 0, 0, 0, 0, 0, 48, 24, 12,
0, 0, 15,175,185,222, 39, 7,126, 46, 50,191,243,197,255,247, 62, 92,111,252,
115, 15, 27,140,153,159,247,242,124, 44, 92,164,177, 57,175,255,236, 79,164, 98,
68,205, 69,160, 64, 15,251,127,128,168, 38, 92,138, 17, 67,196, 80,184,223,255,
255,161,117, 33, 55, 83,191,255,193,240, 33, 57,114, 17, 0, 2, 0, 0, 0, 10,
191, 10, 8,196,209, 75, 55,236,177,115,238,223,203, 61,176, 89, 78,101,219,118,
118, 65,154,126,187,239,241,127,247,245, 59, 18,219, 94,105,245,221,161,173, 91,
191, 27,255,247, 18,124, 71,117,139,133,170,221,227,251,135,110,236,255,183,219,
100, 78,184,125,212,131, 65, 95,212,245,145, 67, 77, 10,153,250,132,195, 4,138,
224, 0, 0, 0,158,107, 42, 65,227,185, 90,158, 86, 6,155, 77,255,251, 82,196,
8, 0, 10,136,185,103, 4, 61, 48, 65,118,173, 44, 60,147, 10,152,107, 49, 74,
18,208, 91, 23,178,196,220, 25, 64,233,230, 36,170, 0,210,219,131, 40,165, 22,
86,195, 23,145, 33, 16,138, 99,109,117,245, 71,162, 69, 42,220,164, 91, 72,165,
26, 69,146,150,199,222, 73,102,148, 29, 19, 5, 65, 86, 6,150,120,180, 26, 88,
75, 18,191,255,250,171, 4, 8,132,140, 0, 0, 20,186,242,162, 66,100, 62, 86,
206, 86,255, 26,203,201,255,255,141,128,166,196,175,133, 9, 70,188,146,175,133,
60, 17,217,229, 90, 27, 87, 93, 34, 76,113,185, 84,213, 56, 17,170, 83, 75,180,
203,116,101, 93, 90, 99, 35,174,230, 42,125, 12,128, 79, 93, 81,234, 67, 66,137,
105,157,157, 23, 71, 53, 40,250,204,105, 89,203,107,250, 63,174, 89,133, 81,140,
0, 52, 17, 16, 0, 0, 18,111, 20, 92, 32,213, 48,179, 50, 26,244,179, 27,230,
154, 34,133,177, 88,255,251, 82,196, 13, 0, 10,125, 65, 85,244, 85, 0, 1,210,
172,231, 7, 31, 32, 0, 37, 11, 68, 69, 13, 37, 48,210, 23, 69, 36,122,143,148,
211,141, 44, 76,135, 72,148,195,135,174, 84,149,167, 30,198,183,255,213,111, 61,
27,155,191,177,207,246,163,255,230, 30,137,219,255,182,186,185,239, 52,148,171,
75, 63,167, 44, 0, 2, 81,190, 41,253,248,182,180, 23, 43,127,217,161, 41,191,
36,199, 40,153,108, 66,224,131,192,217, 12, 67,217, 6,218,240,108,112, 63, 33,
93, 12, 8, 43, 66, 42, 74, 12,215,135,100,172, 33, 65,172, 29, 98, 4, 83, 34,
40, 17,111,133,255, 18,145, 60, 59,136,145, 92,106,144, 34,185, 58, 76,154,254,
146,144,115, 4, 84,180,142,178, 38, 79,253, 34,237,105, 31,106, 70, 73, 36,138,
73,164,181,127,253,182, 82,217, 26,245,117,163,255,219, 50,115,223,245, 92,198,
165,173, 0, 15,249,132, 50, 19,157, 85,121,153,245, 51,255,251, 82,196, 6,131,
74, 96,134,156, 92, 19, 0, 8, 0, 0, 52,128, 0, 0, 0, 60,226, 73, 57, 26,
249,253,122,211,128, 65, 86, 10, 1, 9,195,128, 36, 72,225,196,146,115, 73, 18,
75, 65, 77, 9, 5,200, 43, 16,163,129, 77, 9, 5,200,110, 39,127,255,255,255,
255,255,255,255,252, 83, 66,142,140, 21,136, 46, 64,166,133, 28, 12, 21,136, 46,
64,166,133, 21, 6, 76, 65, 77, 69, 51, 46, 57, 50, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85,
85, 85, 85};
void led(bool on){
if(on)
or_b(0x40, &PBDRL);
else
and_b(~0x40, &PBDRL);
}
void calc_period(void){
period = 61440/bpm-1; // (60*1024)/bpm;
}
void callback(unsigned char** start, int* size){
(void)start; /* unused parameter, avoid warning */
*size = NULL; /* end of data */
sound_active = false;
led(0);
}
void play_tock(void){
sound_active = true;
led(1);
rb->mp3_play_data(sound, sizeof(sound), callback);
rb->mp3_play_pause(true); /* kickoff audio */
}
void draw_display(void){
rb->lcd_clear_display();
#ifdef HAVE_LCD_BITMAP
rb->lcd_setfont(FONT_SYSFIXED);
rb->lcd_putsxy(1, 1, "Metronome");
#endif
rb->snprintf(buffer, sizeof(buffer), "BPM: %d ",bpm);
#ifdef HAVE_LCD_BITMAP
rb->lcd_puts(0,7, buffer);
#else
rb->lcd_puts(0,0, buffer);
#endif
rb->snprintf(buffer, sizeof(buffer), "Vol: %d",
rb->global_settings->volume);
#ifdef HAVE_LCD_BITMAP
rb->lcd_puts(10, 7, buffer);
#else
rb->lcd_puts(0,1, buffer);
#endif
#ifdef HAVE_LCD_BITMAP
rb->lcd_drawline(0, 12, 111, 12);
if(sound_paused)
rb->lcd_puts(0,2,METRONOME_MSG_START);
else
rb->lcd_puts(0,2,METRONOME_MSG_STOP);
rb->lcd_update();
#endif
}
/* helper function to change the volume by a certain amount, +/-
ripped from video.c */
void change_volume(int delta){
int vol = rb->global_settings->volume + delta;
char buffer[30];
if (vol > 100) vol = 100;
else if (vol < 0) vol = 0;
if (vol != rb->global_settings->volume) {
rb->mpeg_sound_set(SOUND_VOLUME, vol);
rb->global_settings->volume = vol;
rb->snprintf(buffer, sizeof(buffer), "Vol: %d ", vol);
#ifdef HAVE_LCD_BITMAP
rb->lcd_puts(10,7, buffer);
rb->lcd_update();
#else
rb->lcd_puts(0,1, buffer);
#endif
}
}
void timer_callback(void){
if(minitick>=period){
minitick = 0;
if(!sound_active && !sound_paused && !tap_count){
play_tock();
}
}
else {
minitick++;
}
if (tap_count) {
tap_time++;
if (tap_count > 1 && tap_time > tap_timeout)
tap_count = 0;
}
}
void cleanup(void *parameter)
{
(void)parameter;
rb->plugin_unregister_timer();
rb->mp3_play_stop(); /* stop audio ISR */
led(0);
}
void tap(void)
{
if (tap_count == 0) {
tap_time = 0;
}
else {
if (tap_time > 0) {
bpm = 61440/(tap_time/tap_count);
if (bpm > 400)
bpm = 400;
}
calc_period();
draw_display();
tap_timeout = (tap_count+2)*tap_time/tap_count;
}
tap_count++;
minitick = 0; /* sync tock to tapping */
reset_tap = false;
}
enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
int button;
TEST_PLUGIN_API(api);
(void)parameter;
rb = api;
rb->bitswap(sound, sizeof(sound));
if (rb->mp3_is_playing())
rb->mp3_play_stop(); // stop audio ISR
calc_period();
rb->plugin_register_timer((FREQ/1024), 1, timer_callback);
draw_display();
/* main loop */
while (true){
reset_tap = true;
button = rb->button_get(true);
switch (button) {
case METRONOME_QUIT:
/* get out of here */
cleanup(NULL);
return PLUGIN_OK;
#if CONFIG_KEYPAD == ONDIO_PAD
case METRONOME_PLAY_TAP:
if(sound_paused) {
sound_paused = false;
calc_period();
draw_display();
}
else
tap();
break;
case METRONOME_PAUSE:
if(!sound_paused) {
sound_paused = true;
draw_display();
}
break;
#else
case METRONOME_PLAYPAUSE:
if(sound_paused)
sound_paused = false;
else
sound_paused = true;
calc_period();
draw_display();
break;
#endif
case METRONOME_VOL_UP:
case METRONOME_VOL_UP | BUTTON_REPEAT:
change_volume(1);
calc_period();
break;
case METRONOME_VOL_DOWN:
case METRONOME_VOL_DOWN | BUTTON_REPEAT:
change_volume(-1);
calc_period();
break;
case BUTTON_LEFT:
if (bpm > 1)
bpm--;
calc_period();
draw_display();
break;
case BUTTON_LEFT | BUTTON_REPEAT:
if (bpm > 10)
bpm=bpm-10;
calc_period();
draw_display();
break;
case BUTTON_RIGHT:
if(bpm < 400)
bpm++;
calc_period();
draw_display();
break;
case BUTTON_RIGHT | BUTTON_REPEAT:
if (bpm < 400)
bpm=bpm+10;
calc_period();
draw_display();
break;
#if CONFIG_KEYPAD != ONDIO_PAD
case METRONOME_TAP:
tap();
break;
#endif
default:
if (rb->default_event_handler_ex(button, cleanup, NULL)
== SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
reset_tap = false;
break;
}
if (reset_tap) {
tap_count = 0;
}
}
}
#endif /* #ifndef SIMULATOR */
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