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Fixed crackling audio on AudioPCI.

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This commit is contained in:
SarahW 2018-03-13 20:46:08 +00:00
commit 74b8047f2f
1 changed files with 36 additions and 28 deletions
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64
src/sound_audiopci.c
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@ -984,12 +984,46 @@ static void es1371_next_sample(es1371_t *es1371, int dac_nr)
}
//static FILE *es1371_f;//,*es1371_f2;
static void es1371_update(es1371_t *es1371)
{
int32_t l, r;
l = (es1371->dac[0].out_l * es1371->dac[0].vol_l) >> 12;
l += ((es1371->dac[1].out_l * es1371->dac[1].vol_l) >> 12);
r = (es1371->dac[0].out_r * es1371->dac[0].vol_r) >> 12;
r += ((es1371->dac[1].out_r * es1371->dac[1].vol_r) >> 12);
l >>= 1;
r >>= 1;
l = (l * es1371->master_vol_l) >> 15;
r = (r * es1371->master_vol_r) >> 15;
if (l < -32768)
l = -32768;
else if (l > 32767)
l = 32767;
if (r < -32768)
r = -32768;
else if (r > 32767)
r = 32767;
for (; es1371->pos < sound_pos_global; es1371->pos++)
{
es1371->buffer[es1371->pos*2] = l;
es1371->buffer[es1371->pos*2 + 1] = r;
}
}
static void es1371_poll(void *p)
{
es1371_t *es1371 = (es1371_t *)p;
es1371->dac[1].time += es1371->dac[1].latch;
es1371_update(es1371);
if (es1371->int_ctrl & INT_DAC1_EN)
{
// pclog("1Samp %i %i %08x\n", es1371->dac[0].curr_samp_ct, es1371->dac[0].samp_ct, es1371->dac[0].ac);
@ -1032,34 +1066,6 @@ static void es1371_poll(void *p)
}
}
}
for (; es1371->pos < sound_pos_global; es1371->pos++)
{
int32_t l, r;
l = (es1371->dac[0].out_l * es1371->dac[0].vol_l) >> 12;
l += ((es1371->dac[1].out_l * es1371->dac[1].vol_l) >> 12);
r = (es1371->dac[0].out_r * es1371->dac[0].vol_r) >> 12;
r += ((es1371->dac[1].out_r * es1371->dac[1].vol_r) >> 12);
l >>= 1;
r >>= 1;
l = (l * es1371->master_vol_l) >> 15;
r = (r * es1371->master_vol_r) >> 15;
if (l < -32768)
l = -32768;
else if (l > 32767)
l = 32767;
if (r < -32768)
r = -32768;
else if (r > 32767)
r = 32767;
es1371->buffer[es1371->pos*2] = l;
es1371->buffer[es1371->pos*2 + 1] = r;
}
}
static void es1371_get_buffer(int32_t *buffer, int len, void *p)
@ -1067,6 +1073,8 @@ static void es1371_get_buffer(int32_t *buffer, int len, void *p)
es1371_t *es1371 = (es1371_t *)p;
int c;
es1371_update(es1371);
for (c = 0; c < len * 2; c++)
buffer[c] += (es1371->buffer[c] / 2);