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Improvements to PC speaker - fixes sound on Beyond Castle Wolfenstein and probably other games as well.

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This commit is contained in:
TomW 2014-07-16 20:44:29 +01:00
commit 67cb9e3781
8 changed files with 35 additions and 22 deletions
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14
src/sound_speaker.c
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@ -8,24 +8,26 @@ static int16_t speaker_buffer[SOUNDBUFLEN];
static int speaker_pos = 0;
int wasgated = 0;
int speaker_gated = 0;
int speaker_enable = 0, was_speaker_enable = 0;
static void speaker_poll(void *p)
{
if (speaker_pos >= SOUNDBUFLEN) return;
// printf("SPeaker - %i %i %i %02X\n",speakval,gated,speakon,pit.m[2]);
if (gated)
if (speaker_gated && was_speaker_enable)
{
if (!pit.m[2] || pit.m[2]==4)
speaker_buffer[speaker_pos] = speakval;
speaker_buffer[speaker_pos] = speakval;
else
speaker_buffer[speaker_pos] = speakon ? 0x1400 : 0;
speaker_buffer[speaker_pos] = speakon ? 0x1400 : 0;
}
else
speaker_buffer[speaker_pos] = wasgated ? 0x1400 : 0;
speaker_buffer[speaker_pos] = was_speaker_enable ? 0x1400 : 0;
speaker_pos++;
wasgated = 0;
if (!speaker_enable)
was_speaker_enable = 0;
}
static void speaker_get_buffer(int16_t *buffer, int len, void *p)