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Refactored sound code - slight speedup.

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This commit is contained in:
TomW 2016-02-10 20:49:28 +00:00
commit 3a57341837
33 changed files with 706 additions and 535 deletions
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47
src/sound.c
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@ -78,14 +78,14 @@ void sound_card_init()
static struct
{
void (*poll)(void *p);
void (*get_buffer)(int16_t *buffer, int len, void *p);
void *priv;
} sound_handlers[8];
static int sound_handlers_num;
static int sound_poll_time = 0, sound_get_buffer_time = 0;
static int sound_poll_time = 0, sound_get_buffer_time = 0, sound_poll_latch;
int sound_pos_global = 0;
int soundon = 1;
@ -133,9 +133,8 @@ void sound_init()
sound_cd_thread_h = thread_create(sound_cd_thread, NULL);
}
void sound_add_handler(void (*poll)(void *p), void (*get_buffer)(int16_t *buffer, int len, void *p), void *p)
void sound_add_handler(void (*get_buffer)(int16_t *buffer, int len, void *p), void *p)
{
sound_handlers[sound_handlers_num].poll = poll;
sound_handlers[sound_handlers_num].get_buffer = get_buffer;
sound_handlers[sound_handlers_num].priv = p;
sound_handlers_num++;
@ -143,39 +142,37 @@ void sound_add_handler(void (*poll)(void *p), void (*get_buffer)(int16_t *buffer
void sound_poll(void *priv)
{
int c;
sound_poll_time += sound_poll_latch;
sound_pos_global++;
if (sound_pos_global == SOUNDBUFLEN)
{
int c;
sound_poll_time += (int)((double)TIMER_USEC * (1000000.0 / 48000.0));
for (c = 0; c < sound_handlers_num; c++)
sound_handlers[c].poll(sound_handlers[c].priv);
}
memset(outbuffer, 0, SOUNDBUFLEN * 2 * sizeof(int16_t));
FILE *soundf;
void sound_get_buffer(void *priv)
{
int c;
sound_get_buffer_time += (TIMER_USEC * (1000000 / 10));
memset(outbuffer, 0, SOUNDBUFLEN * 2 * sizeof(int16_t));
for (c = 0; c < sound_handlers_num; c++)
sound_handlers[c].get_buffer(outbuffer, SOUNDBUFLEN, sound_handlers[c].priv);
for (c = 0; c < sound_handlers_num; c++)
sound_handlers[c].get_buffer(outbuffer, SOUNDBUFLEN, sound_handlers[c].priv);
/* if (!soundf) soundf=fopen("sound.pcm","wb");
fwrite(outbuffer,(SOUNDBUFLEN)*2*2,1,soundf);*/
if (soundon) givealbuffer(outbuffer);
if (soundon) givealbuffer(outbuffer);
thread_set_event(sound_cd_event);
thread_set_event(sound_cd_event);
sound_pos_global = 0;
}
}
void sound_speed_changed()
{
sound_poll_latch = (int)((double)TIMER_USEC * (1000000.0 / 48000.0));
}
void sound_reset()
{
timer_add(sound_poll, &sound_poll_time, TIMER_ALWAYS_ENABLED, NULL);
timer_add(sound_get_buffer, &sound_get_buffer_time, TIMER_ALWAYS_ENABLED, NULL);
sound_handlers_num = 0;