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Tweaks to PC speaker code - fixes sound in Castle Wolfenstein.

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This commit is contained in:
SarahW 2016-05-09 20:11:03 +01:00
commit 5da7de098e
1 changed files with 16 additions and 20 deletions
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38
src/sound_speaker.c
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@ -16,29 +16,25 @@ void speaker_update()
int16_t val;
// printf("SPeaker - %i %i %i %02X\n",speakval,gated,speakon,pit.m[2]);
if (speaker_gated && was_speaker_enable)
{
if (!pit.m[2] || pit.m[2]==4)
val = speakval;
else if (pit.l[2] < 0x40)
val = 0xa00;
else
val = speakon ? 0x1400 : 0;
}
else
val = was_speaker_enable ? 0x1400 : 0;
if (!speaker_enable)
was_speaker_enable = 0;
if (speaker_pos != sound_pos_global)
speaker_buffer[speaker_pos] = val;
if (!speaker_gated)
val = 0;
for (; speaker_pos < sound_pos_global; speaker_pos++)
{
if (speaker_gated && was_speaker_enable)
{
if (!pit.m[2] || pit.m[2]==4)
val = speakval;
else if (pit.l[2] < 0x40)
val = 0xa00;
else
val = speakon ? 0x1400 : 0;
}
else
val = was_speaker_enable ? 0x1400 : 0;
if (!speaker_enable)
was_speaker_enable = 0;
speaker_buffer[speaker_pos] = val;
}
}
static void speaker_get_buffer(int16_t *buffer, int len, void *p)