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Moved OPL2 and OPL3 to a new 49716 Hz source so resampling is no longer needed, also fixed SB OPL and PC Speaker filtering (OPL was being downsampled to the selected DSP sample rate, which is incorrect, and the PC Speaker filter was using the wrong filter index in some liens).

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OBattler
2024-03-01 06:52:48 +01:00
parent 71ecdc1b55
commit e0d80aefb4
18 changed files with 683 additions and 193 deletions
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16
src/sound/snd_pas16.c
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@@ -728,20 +728,29 @@ pas16_get_buffer(int32_t *buffer, int len, void *priv)
{
pas16_t *pas16 = (pas16_t *) priv;
const int32_t *opl_buf = pas16->opl.update(pas16->opl.priv);
sb_dsp_update(&pas16->dsp);
pas16_update(pas16);
for (int c = 0; c < len * 2; c++) {
buffer[c] += opl_buf[c];
buffer[c] += (int16_t) (sb_iir(0, c & 1, (double) pas16->dsp.buffer[c]) / 1.3) / 2;
buffer[c] += (pas16->pcm_buffer[c & 1][c >> 1] / 2);
}
pas16->pos = 0;
pas16->opl.reset_buffer(pas16->opl.priv);
pas16->dsp.pos = 0;
}
void
pas16_get_music_buffer(int32_t *buffer, int len, void *priv)
{
pas16_t *pas16 = (pas16_t *) priv;
const int32_t *opl_buf = pas16->opl.update(pas16->opl.priv);
for (int c = 0; c < len * 2; c++)
buffer[c] += opl_buf[c];
pas16->opl.reset_buffer(pas16->opl.priv);
}
static void *
pas16_init(UNUSED(const device_t *info))
{
@@ -756,6 +765,7 @@ pas16_init(UNUSED(const device_t *info))
timer_add(&pas16->pit.timer[0], pas16_pcm_poll, pas16, 0);
sound_add_handler(pas16_get_buffer, pas16);
music_add_handler(pas16_get_music_buffer, pas16);
return pas16;
}