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Converted the uint32_t cd vol variables to double variables, fixes cd audio scramble using the ad1848 core.

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TC1995
2020-11-21 16:48:21 +01:00
parent 16d29d345a
commit 3b79690e50
2 changed files with 7 additions and 7 deletions
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2
src/include/86box/snd_ad1848.h
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@@ -15,7 +15,7 @@ typedef struct ad1848_t
int16_t out_l, out_r;
uint32_t cd_vol_l, cd_vol_r;
double cd_vol_l, cd_vol_r;
int enable;

12
src/sound/snd_ad1848.c
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@@ -16,7 +16,7 @@
#define CS4231 0x80
static int ad1848_vols_6bits[64];
static uint32_t ad1848_vols_5bits_aux_gain[32];
static double ad1848_vols_5bits_aux_gain[32];
void ad1848_setirq(ad1848_t *ad1848, int irq)
@@ -224,11 +224,11 @@ static void ad1848_poll(void *p)
static void ad1848_filter_cd_audio(int channel, double *buffer, void *p)
{
ad1848_t *ad1848 = (ad1848_t *)p;
int32_t c;
uint32_t volume = channel ? ad1848->cd_vol_r : ad1848->cd_vol_l;
double c;
double volume = channel ? ad1848->cd_vol_r : ad1848->cd_vol_l;
c = (((int32_t) *buffer) * volume) >> 16;
*buffer = (double) c;
c = ((*buffer) * volume) / 65536.0;
*buffer = c;
}
void ad1848_init(ad1848_t *ad1848, int type)
@@ -292,7 +292,7 @@ void ad1848_init(ad1848_t *ad1848, int type)
attenuation = pow(10, attenuation / 10);
ad1848_vols_5bits_aux_gain[c] = (int)(attenuation * 65536);
ad1848_vols_5bits_aux_gain[c] = (attenuation * 65536);
}
ad1848->type = type;