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-rw-r--r--Alc/mixvoice.cpp66
1 files changed, 42 insertions, 24 deletions
diff --git a/Alc/mixvoice.cpp b/Alc/mixvoice.cpp
index 9602ac72..b94a6a1e 100644
--- a/Alc/mixvoice.cpp
+++ b/Alc/mixvoice.cpp
@@ -302,6 +302,8 @@ const ALfloat *DoFilters(BiquadFilter *lpfilter, BiquadFilter *hpfilter,
void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const ALsizei SamplesToDo)
{
+ static constexpr ALfloat SilentTarget[MAX_OUTPUT_CHANNELS]{};
+
ASSUME(SamplesToDo > 0);
/* Get source info */
@@ -321,15 +323,6 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
ASSUME(SampleSize > 0);
ASSUME(increment > 0);
- /* TODO: Use stored previous samples to fade out without incrementing when
- * stopping (buffers may not be available).
- */
- if(UNLIKELY(vstate == ALvoice::Stopping))
- {
- voice->PlayState.store(ALvoice::Stopped, std::memory_order_release);
- return;
- }
-
ALCdevice *Device{Context->Device};
const ALsizei IrSize{Device->mHrtf ? Device->mHrtf->irSize : 0};
const int OutLIdx{GetChannelIdxByName(Device->RealOut, FrontLeft)};
@@ -415,19 +408,26 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
}
/* It's impossible to have a buffer list item with no entries. */
- assert(BufferListItem->num_buffers > 0);
+ assert(!BufferListItem || BufferListItem->num_buffers > 0);
for(ALsizei chan{0};chan < NumChannels;chan++)
{
auto &SrcData = Device->SourceData;
/* Load the previous samples into the source data first, and clear the rest. */
- auto srciter = std::copy(std::begin(voice->PrevSamples[chan]),
- std::end(voice->PrevSamples[chan]), std::begin(SrcData));
+ auto srciter = std::copy_n(voice->PrevSamples[chan].begin(), MAX_RESAMPLE_PADDING,
+ std::begin(SrcData));
std::fill(srciter, std::end(SrcData), 0.0f);
- auto FilledAmt = static_cast<ALsizei>(voice->PrevSamples[chan].size());
- if(isstatic)
+ ALsizei FilledAmt{MAX_RESAMPLE_PADDING};
+ if(vstate == ALvoice::Stopping)
+ {
+ srciter = std::copy(voice->PrevSamples[chan].begin()+MAX_RESAMPLE_PADDING,
+ voice->PrevSamples[chan].end(), srciter);
+ std::fill(srciter, std::begin(SrcData)+SrcBufferSize, *(srciter-1));
+ FilledAmt = SrcBufferSize;
+ }
+ else if(isstatic)
{
/* TODO: For static sources, loop points are taken from the
* first buffer (should be adjusted by any buffer offset, to
@@ -589,29 +589,30 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
const ALfloat *samples{DoFilters(&parms.LowPass, &parms.HighPass,
Device->FilteredData, ResampledData, DstBufferSize, voice->Direct.FilterType)};
+ const ALfloat (&TargetGains)[MAX_OUTPUT_CHANNELS] =
+ UNLIKELY(vstate==ALvoice::Stopping) ? SilentTarget : parms.Gains.Target;
if(!(voice->Flags&VOICE_HAS_HRTF))
{
if(!(voice->Flags&VOICE_HAS_NFC))
MixSamples(samples, voice->Direct.Channels, voice->Direct.Buffer,
- parms.Gains.Current, parms.Gains.Target, Counter, OutPos,
- DstBufferSize);
+ parms.Gains.Current, TargetGains, Counter, OutPos, DstBufferSize);
else
{
MixSamples(samples, voice->Direct.ChannelsPerOrder[0],
- voice->Direct.Buffer, parms.Gains.Current, parms.Gains.Target, Counter,
+ voice->Direct.Buffer, parms.Gains.Current, TargetGains, Counter,
OutPos, DstBufferSize);
ALfloat (&nfcsamples)[BUFFERSIZE] = Device->NfcSampleData;
ALsizei chanoffset{voice->Direct.ChannelsPerOrder[0]};
using FilterProc = void (NfcFilter::*)(float*,const float*,int);
- auto apply_nfc = [voice,&parms,samples,DstBufferSize,Counter,OutPos,&chanoffset,&nfcsamples](FilterProc process, ALsizei order) -> void
+ auto apply_nfc = [voice,&parms,samples,&TargetGains,DstBufferSize,Counter,OutPos,&chanoffset,&nfcsamples](FilterProc process, ALsizei order) -> void
{
if(voice->Direct.ChannelsPerOrder[order] < 1)
return;
(parms.NFCtrlFilter.*process)(nfcsamples, samples, DstBufferSize);
MixSamples(nfcsamples, voice->Direct.ChannelsPerOrder[order],
voice->Direct.Buffer+chanoffset, parms.Gains.Current+chanoffset,
- parms.Gains.Target+chanoffset, Counter, OutPos, DstBufferSize);
+ TargetGains+chanoffset, Counter, OutPos, DstBufferSize);
chanoffset += voice->Direct.ChannelsPerOrder[order];
};
apply_nfc(&NfcFilter::process1, 1);
@@ -621,6 +622,8 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
}
else
{
+ const ALfloat TargetGain{UNLIKELY(vstate==ALvoice::Stopping) ? 0.0f :
+ parms.Hrtf.Target.Gain};
ALsizei fademix{0};
/* If fading, the old gain is not silence, and this is the
* first mixing pass, fade between the IRs.
@@ -635,7 +638,7 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
* and new target gains given how much of the fade time
* this mix handles.
*/
- ALfloat gain{lerp(parms.Hrtf.Old.Gain, parms.Hrtf.Target.Gain,
+ ALfloat gain{lerp(parms.Hrtf.Old.Gain, TargetGain,
minf(1.0f, static_cast<ALfloat>(fademix))/Counter)};
MixHrtfParams hrtfparams;
hrtfparams.Coeffs = &parms.Hrtf.Target.Coeffs;
@@ -652,12 +655,14 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
parms.Hrtf.Old = parms.Hrtf.Target;
if(fademix < Counter)
parms.Hrtf.Old.Gain = hrtfparams.Gain;
+ else
+ parms.Hrtf.Old.Gain = TargetGain;
}
if(fademix < DstBufferSize)
{
const ALsizei todo{DstBufferSize - fademix};
- ALfloat gain{parms.Hrtf.Target.Gain};
+ ALfloat gain{TargetGain};
/* Interpolate the target gain if the gain fading lasts
* longer than this mix.
@@ -688,7 +693,7 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
}
ALfloat (&FilterBuf)[BUFFERSIZE] = Device->FilteredData;
- auto mix_send = [Counter,OutPos,DstBufferSize,chan,ResampledData,&FilterBuf](ALvoice::SendData &send) -> void
+ auto mix_send = [vstate,Counter,OutPos,DstBufferSize,chan,ResampledData,&FilterBuf](ALvoice::SendData &send) -> void
{
if(!send.Buffer)
return;
@@ -697,8 +702,10 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
const ALfloat *samples{DoFilters(&parms.LowPass, &parms.HighPass,
FilterBuf, ResampledData, DstBufferSize, send.FilterType)};
+ const ALfloat (&TargetGains)[MAX_OUTPUT_CHANNELS] =
+ UNLIKELY(vstate==ALvoice::Stopping) ? SilentTarget : parms.Gains.Target;
MixSamples(samples, send.Channels, send.Buffer, parms.Gains.Current,
- parms.Gains.Target, Counter, OutPos, DstBufferSize);
+ TargetGains, Counter, OutPos, DstBufferSize);
};
std::for_each(voice->Send.begin(), voice->Send.end(), mix_send);
}
@@ -711,7 +718,11 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
voice->Offset += DstBufferSize;
Counter = maxi(DstBufferSize, Counter) - DstBufferSize;
- if(isstatic)
+ if(UNLIKELY(vstate == ALvoice::Stopping))
+ {
+ /* Do nothing. */
+ }
+ else if(isstatic)
{
if(BufferLoopItem)
{
@@ -760,6 +771,13 @@ void MixSource(ALvoice *voice, const ALuint SourceID, ALCcontext *Context, const
voice->Flags |= VOICE_IS_FADING;
+ /* Don't update positions and buffers if we were stopping. */
+ if(UNLIKELY(vstate == ALvoice::Stopping))
+ {
+ voice->PlayState.store(ALvoice::Stopped, std::memory_order_release);
+ return;
+ }
+
/* Update source info */
voice->position.store(DataPosInt, std::memory_order_relaxed);
voice->position_fraction.store(DataPosFrac, std::memory_order_relaxed);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 18:50:57 +0000