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Patch #917313, changes in muting and timing handling

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4400 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Linus Nielsen Feltzing 2004-03-17 14:54:32 +00:00
parent 8e20415b4b
commit c5067bf5ac
1 changed files with 33 additions and 30 deletions
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63
apps/plugins/metronome.c
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@ -22,13 +22,14 @@
static struct plugin_api* rb;
static unsigned int bpm = 120;
static unsigned int time_to_next_tock;
static long bpm = 120;
static long time_to_next_tock;
static bool sound_active = false;
static bool sound_paused = true;
static bool mute = false;
static long mute_until_tick;
static bool key_pressed = false;
static long sound_playback_tick;
/*tick sound from a metronome*/
static unsigned char sound[]={
@ -96,7 +97,13 @@ void led(bool on){
}
void calc_time_to_next_tock(void){
time_to_next_tock = (HZ * 60) / bpm ;
time_to_next_tock = ((HZ * 60) / bpm);
if (key_pressed){
/* we changed timing, so re-initialize timing loop
to be on the safe side */
sound_playback_tick = *rb->current_tick;
key_pressed = false;
}
}
void callback(unsigned char** start, int* size){
@ -122,6 +129,7 @@ void draw_display(void){
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);
@ -146,8 +154,8 @@ void draw_display(void){
#endif
}
// helper function to change the volume by a certain amount, +/-
// ripped from video.c
/* 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];
@ -158,7 +166,7 @@ void change_volume(int delta){
rb->global_settings->volume = vol;
rb->snprintf(buffer, sizeof(buffer), "Vol: %d ", vol);
#ifdef HAVE_LCD_BITMAP
rb->lcd_puts(0,7, buffer);
rb->lcd_puts(10,7, buffer);
rb->lcd_update();
#else
rb->lcd_puts(0,1, buffer);
@ -166,12 +174,6 @@ void change_volume(int delta){
}
}
// if a key was pressed we shut up for a little while
void set_mute_ticks(void){
mute_until_tick = *rb->current_tick + 50;
mute = true;
}
enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
TEST_PLUGIN_API(api);
@ -183,19 +185,21 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
if (rb->mp3_is_playing)
rb->mp3_play_stop(); // stop audio ISR
calc_time_to_next_tock();
draw_display();
calc_time_to_next_tock();
sound_playback_tick = *rb->current_tick;
draw_display();
/* main loop */
while (true){
if (!mute && !sound_active && !sound_paused){
play_tock();
/* playback time reached? */
if (*rb->current_tick == (sound_playback_tick + time_to_next_tock)){
sound_playback_tick = *rb->current_tick;
if(!sound_active && !sound_paused){
play_tock();
}
}
if (*rb->current_tick >= mute_until_tick)
mute = false;
switch (rb->button_get_w_tmo(time_to_next_tock)) {
switch (rb->button_get(false)) {
#ifdef HAVE_RECORDER_KEYPAD
case BUTTON_OFF:
#else
@ -204,17 +208,16 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
/* get out of here */
rb->mp3_play_stop(); /* stop audio ISR */
led(0);
set_mute_ticks();
return PLUGIN_OK;
case BUTTON_PLAY:
key_pressed = true;
if(sound_paused)
sound_paused = false;
else
sound_paused = true;
calc_time_to_next_tock();
draw_display();
set_mute_ticks();
break;
#ifdef HAVE_RECORDER_KEYPAD
@ -224,8 +227,8 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
case BUTTON_ON | BUTTON_RIGHT:
case BUTTON_ON | BUTTON_RIGHT | BUTTON_REPEAT:
#endif
set_mute_ticks();
change_volume(1);
calc_time_to_next_tock();
break;
#ifdef HAVE_RECORDER_KEYPAD
@ -235,12 +238,12 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
case BUTTON_ON | BUTTON_LEFT:
case BUTTON_ON | BUTTON_LEFT | BUTTON_REPEAT:
#endif
set_mute_ticks();
change_volume(-1);
calc_time_to_next_tock();
break;
case BUTTON_LEFT:
set_mute_ticks();
key_pressed = true;
if (bpm > 1)
bpm--;
calc_time_to_next_tock();
@ -248,7 +251,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
break;
case BUTTON_LEFT | BUTTON_REPEAT:
set_mute_ticks();
key_pressed = true;
if (bpm > 10)
bpm=bpm-10;
calc_time_to_next_tock();
@ -256,7 +259,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
break;
case BUTTON_RIGHT:
set_mute_ticks();
key_pressed = true;
if(bpm < 300)
bpm++;
calc_time_to_next_tock();
@ -264,7 +267,7 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter){
break;
case BUTTON_RIGHT | BUTTON_REPEAT:
set_mute_ticks();
key_pressed = true;
if (bpm < 300)
bpm=bpm+10;
calc_time_to_next_tock();