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Implement pcm voices for sasaudio.

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Tested with NPJH 50569: Ore no Imouto2.
This commit is contained in:
oioitff 2013-04-13 18:58:13 +08:00
parent 4bae30095b
commit 828b5a0be8
1 changed files with 33 additions and 40 deletions
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73
Core/HW/SasAudio.cpp
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@ -275,7 +275,14 @@ void SasInstance::Mix(u32 outAddr) {
// TODO: Special case no-resample case for speed
if (voice.type == VOICETYPE_VAG && voice.vagAddr != 0) {
switch (voice.type) {
case VOICETYPE_VAG:
if (voice.type == VOICETYPE_VAG && !voice.vagAddr)
break;
case VOICETYPE_PCM:
if (voice.type == VOICETYPE_PCM && !voice.pcmAddr)
break;
default:
// Load resample history (so we can use a wide filter)
resampleBuffer[0] = voice.resampleHist[0];
resampleBuffer[1] = voice.resampleHist[1];
@ -291,14 +298,33 @@ void SasInstance::Mix(u32 outAddr) {
}
// Read N samples into the resample buffer. Could do either PCM or VAG here.
voice.vag.GetSamples(resampleBuffer + 2, numSamples);
switch (voice.type) {
case VOICETYPE_VAG:
{
voice.vag.GetSamples(resampleBuffer + 2, numSamples);
if (voice.vag.End()) {
// NOTICE_LOG(SAS, "Hit end of VAG audio");
voice.playing = false;
voice.on = false; // ??
}
}
break;
case VOICETYPE_PCM:
{
int size = std::min(voice.pcmSize, (int)(numSamples * sizeof(s16)));
Memory::Memcpy(resampleBuffer + 2, voice.pcmAddr, size);
if (numSamples * sizeof(s16) > size)
memset(resampleBuffer + 2 + voice.pcmSize, 0, numSamples * sizeof(s16) - size);
}
break;
default:
{
memset(resampleBuffer + 2, 0, numSamples * sizeof(s16));
}
break;
}
// Smoothness HACKERY
resampleBuffer[2 + numSamples] = resampleBuffer[2 + numSamples - 1];
if (voice.vag.End()) {
// NOTICE_LOG(SAS, "Hit end of VAG audio");
voice.playing = false;
voice.on = false; // ??
}
// Save resample history
voice.resampleHist[0] = resampleBuffer[2 + numSamples - 2];
@ -337,39 +363,6 @@ void SasInstance::Mix(u32 outAddr) {
voice.playing = false;
}
}
else if (voice.type == VOICETYPE_PCM && voice.pcmAddr != 0) {
resampleBuffer[0] = voice.resampleHist[0];
resampleBuffer[1] = voice.resampleHist[1];
u32 numSamples = voice.sampleFrac + grainSize ;
if ((int)numSamples > grainSize * 4) {
ERROR_LOG(SAS, "numSamples too large, clamping: %i vs %i", numSamples, grainSize * 4);
numSamples = grainSize * 4;
}
resampleBuffer[2 + numSamples] = resampleBuffer[2 + numSamples - 1];
voice.resampleHist[0] = resampleBuffer[2 + numSamples - 2];
voice.resampleHist[1] = resampleBuffer[2 + numSamples - 1];
u32 sampleFrac = voice.sampleFrac;
for (int i = 0; i < grainSize; i++) {
int sample = resampleBuffer[sampleFrac + 2];
int envelopeValue = voice.envelope.GetHeight();
envelopeValue = ((envelopeValue >> 15) + 1) >> 1;
sample = sample * envelopeValue >> 15;
mixBuffer[i * 2] += sample * voice.volumeLeft >> 15;
mixBuffer[i * 2 + 1] += sample * voice.volumeRight >> 15;
sendBuffer[i * 2] += sample * voice.volumeLeftSend >> 15;
sendBuffer[i * 2 + 1] += sample * voice.volumeRightSend >> 15;
voice.envelope.Step();
}
voice.sampleFrac = sampleFrac;
voice.sampleFrac -= numSamples ;
if (voice.envelope.HasEnded()) {
NOTICE_LOG(SAS, "Hit end of envelope");
voice.playing = false;
}
}
else if (voice.type == VOICETYPE_NOISE && voice.noiseFreq != 0) {
// Generate noise?
}
}
//if (voicesPlayingCount)