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Sound Blaster: Prevent GenerateDMASound() and goldplay DAC mode from conflicting with each other regarding rendering of audio data

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This commit is contained in:
Jonathan Campbell 2020-04-30 14:38:30 -07:00
parent 0675a3ec0d
commit 33b531fb59
1 changed files with 3 additions and 0 deletions
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3
src/hardware/sblaster.cpp
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@ -598,6 +598,8 @@ static void GenerateDMASound(Bitu size) {
// don't read if the DMA channel is masked
if (sb.dma.chan->masked) return;
if (sb.dma_dac_mode) return;
if(sb.dma.autoinit) {
if (sb.dma.left <= size) size = sb.dma.left;
} else {
@ -768,6 +770,7 @@ static void DMA_DAC_Event(Bitu val) {
if (!sb.single_sample_dma) {
// WARNING: This assumes Sound Blaster Pro emulation!
LOG(LOG_SB,LOG_NORMAL)("Goldplay mode unexpectedly switched off, normal DMA playback follows");
sb.dma_dac_mode = 0;
sb.dma_dac_srcrate = sb.freq / (sb.mixer.stereo ? 2 : 1);
sb.chan->SetFreq(sb.dma_dac_srcrate);
updateSoundBlasterFilter(sb.dma_dac_srcrate);