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sound: seq_timer: simplify snd_seq_timer_set_tick_resolution() parameters 

As snd_seq_timer_set_tick_resolution() is always called with the same
three fields of struct snd_seq_timer, it suffices to give that as the
only parameter.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch 2010-01-18 15:40:56 +01:00 committed by Jaroslav Kysela
parent ed69c6a8ee
commit a32f66746c
1 changed files with 13 additions and 14 deletions
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27
sound/core/seq/seq_timer.c
View File

@ -33,22 +33,21 @@
#define SKEW_BASE 0x10000 /* 16bit shift */
static void snd_seq_timer_set_tick_resolution(struct snd_seq_timer_tick *tick,
int tempo, int ppq)
static void snd_seq_timer_set_tick_resolution(struct snd_seq_timer *tmr)
{
if (tempo < 1000000)
tick->resolution = (tempo * 1000) / ppq;
if (tmr->tempo < 1000000)
tmr->tick.resolution = (tmr->tempo * 1000) / tmr->ppq;
else {
/* might overflow.. */
unsigned int s;
s = tempo % ppq;
s = (s * 1000) / ppq;
tick->resolution = (tempo / ppq) * 1000;
tick->resolution += s;
s = tmr->tempo % tmr->ppq;
s = (s * 1000) / tmr->ppq;
tmr->tick.resolution = (tmr->tempo / tmr->ppq) * 1000;
tmr->tick.resolution += s;
}
if (tick->resolution <= 0)
tick->resolution = 1;
snd_seq_timer_update_tick(tick, 0);
if (tmr->tick.resolution <= 0)
tmr->tick.resolution = 1;
snd_seq_timer_update_tick(&tmr->tick, 0);
}
/* create new timer (constructor) */
@ -96,7 +95,7 @@ void snd_seq_timer_defaults(struct snd_seq_timer * tmr)
/* setup defaults */
tmr->ppq = 96; /* 96 PPQ */
tmr->tempo = 500000; /* 120 BPM */
snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq);
snd_seq_timer_set_tick_resolution(tmr);
tmr->running = 0;
tmr->type = SNDRV_SEQ_TIMER_ALSA;
@ -180,7 +179,7 @@ int snd_seq_timer_set_tempo(struct snd_seq_timer * tmr, int tempo)
spin_lock_irqsave(&tmr->lock, flags);
if ((unsigned int)tempo != tmr->tempo) {
tmr->tempo = tempo;
snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq);
snd_seq_timer_set_tick_resolution(tmr);
}
spin_unlock_irqrestore(&tmr->lock, flags);
return 0;
@ -205,7 +204,7 @@ int snd_seq_timer_set_ppq(struct snd_seq_timer * tmr, int ppq)
}
tmr->ppq = ppq;
snd_seq_timer_set_tick_resolution(&tmr->tick, tmr->tempo, tmr->ppq);
snd_seq_timer_set_tick_resolution(tmr);
spin_unlock_irqrestore(&tmr->lock, flags);
return 0;
}