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Simplify post-mix HRTF gain storage

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This commit is contained in:
Chris Robinson 2020-01-05 17:12:48 -08:00
parent 05abcbc600
commit 54b49594e6
6 changed files with 15 additions and 27 deletions
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4
alc/mixer/defs.h
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@ -42,10 +42,10 @@ void MixRow_(const al::span<float> OutBuffer, const al::span<const float> Gains,
template<InstSetType InstTag>
void MixHrtf_(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize);
const MixHrtfFilter *hrtfparams, const size_t BufferSize);
template<InstSetType InstTag>
void MixHrtfBlend_(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
const HrtfFilter *oldparams, MixHrtfFilter *newparams, const size_t BufferSize);
const HrtfFilter *oldparams, const MixHrtfFilter *newparams, const size_t BufferSize);
template<InstSetType InstTag>
void MixDirectHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut,
const al::span<const FloatBufferLine> InSamples, float2 *AccumSamples, DirectHrtfState *State,

8
alc/mixer/hrtfbase.h
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@ -14,7 +14,7 @@ using ApplyCoeffsT = void(&)(float2 *RESTRICT Values, const ALuint irSize, const
template<ApplyCoeffsT ApplyCoeffs>
inline void MixHrtfBase(const float *InSamples, float2 *RESTRICT AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize)
const MixHrtfFilter *hrtfparams, const size_t BufferSize)
{
ASSUME(BufferSize > 0);
@ -35,13 +35,11 @@ inline void MixHrtfBase(const float *InSamples, float2 *RESTRICT AccumSamples, c
stepcount += 1.0f;
}
hrtfparams->Gain = gain + gainstep*stepcount;
}
template<ApplyCoeffsT ApplyCoeffs>
inline void MixHrtfBlendBase(const float *InSamples, float2 *RESTRICT AccumSamples,
const ALuint IrSize, const HrtfFilter *oldparams, MixHrtfFilter *newparams,
const ALuint IrSize, const HrtfFilter *oldparams, const MixHrtfFilter *newparams,
const size_t BufferSize)
{
const auto &OldCoeffs = oldparams->Coeffs;
@ -78,8 +76,6 @@ inline void MixHrtfBlendBase(const float *InSamples, float2 *RESTRICT AccumSampl
stepcount += 1.0f;
}
newparams->Gain = newGainStep*stepcount;
}
template<ApplyCoeffsT ApplyCoeffs>

4
alc/mixer/mixer_c.cpp
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@ -137,12 +137,12 @@ const ALfloat *Resample_<FastBSincTag,CTag>(const InterpState *state, const ALfl
template<>
void MixHrtf_<CTag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize)
const MixHrtfFilter *hrtfparams, const size_t BufferSize)
{ MixHrtfBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, hrtfparams, BufferSize); }
template<>
void MixHrtfBlend_<CTag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
const HrtfFilter *oldparams, MixHrtfFilter *newparams, const size_t BufferSize)
const HrtfFilter *oldparams, const MixHrtfFilter *newparams, const size_t BufferSize)
{
MixHrtfBlendBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, oldparams, newparams,
BufferSize);

4
alc/mixer/mixer_neon.cpp
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@ -191,12 +191,12 @@ const ALfloat *Resample_<FastBSincTag,NEONTag>(const InterpState *state,
template<>
void MixHrtf_<NEONTag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize)
const MixHrtfFilter *hrtfparams, const size_t BufferSize)
{ MixHrtfBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, hrtfparams, BufferSize); }
template<>
void MixHrtfBlend_<NEONTag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
const HrtfFilter *oldparams, MixHrtfFilter *newparams, const size_t BufferSize)
const HrtfFilter *oldparams, const MixHrtfFilter *newparams, const size_t BufferSize)
{
MixHrtfBlendBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, oldparams, newparams,
BufferSize);

4
alc/mixer/mixer_sse.cpp
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@ -167,12 +167,12 @@ const ALfloat *Resample_<FastBSincTag,SSETag>(const InterpState *state,
template<>
void MixHrtf_<SSETag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize)
const MixHrtfFilter *hrtfparams, const size_t BufferSize)
{ MixHrtfBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, hrtfparams, BufferSize); }
template<>
void MixHrtfBlend_<SSETag>(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
const HrtfFilter *oldparams, MixHrtfFilter *newparams, const size_t BufferSize)
const HrtfFilter *oldparams, const MixHrtfFilter *newparams, const size_t BufferSize)
{
MixHrtfBlendBase<ApplyCoeffs>(InSamples, AccumSamples, IrSize, oldparams, newparams,
BufferSize);

16
alc/voice.cpp
View File

@ -73,9 +73,9 @@ Resampler ResamplerDefault{Resampler::Linear};
namespace {
using HrtfMixerFunc = void(*)(const ALfloat *InSamples, float2 *AccumSamples, const ALuint IrSize,
MixHrtfFilter *hrtfparams, const size_t BufferSize);
const MixHrtfFilter *hrtfparams, const size_t BufferSize);
using HrtfMixerBlendFunc = void(*)(const ALfloat *InSamples, float2 *AccumSamples,
const ALuint IrSize, const HrtfFilter *oldparams, MixHrtfFilter *newparams,
const ALuint IrSize, const HrtfFilter *oldparams, const MixHrtfFilter *newparams,
const size_t BufferSize);
HrtfMixerFunc MixHrtfSamples = MixHrtf_<CTag>;
@ -468,10 +468,7 @@ void DoHrtfMix(const float *samples, const ALuint DstBufferSize, DirectParams &p
fademix);
/* Update the old parameters with the result. */
parms.Hrtf.Old = parms.Hrtf.Target;
if(fademix < Counter)
parms.Hrtf.Old.Gain = hrtfparams.Gain;
else
parms.Hrtf.Old.Gain = TargetGain;
parms.Hrtf.Old.Gain = gain;
OutPos += fademix;
}
@ -496,13 +493,8 @@ void DoHrtfMix(const float *samples, const ALuint DstBufferSize, DirectParams &p
hrtfparams.Gain = parms.Hrtf.Old.Gain;
hrtfparams.GainStep = (gain - parms.Hrtf.Old.Gain) / static_cast<float>(todo);
MixHrtfSamples(HrtfSamples+fademix, AccumSamples+OutPos, IrSize, &hrtfparams, todo);
/* Store the interpolated gain or the final target gain depending if
* the fade is done.
*/
if(DstBufferSize < Counter)
/* Store the now-current gain for next time. */
parms.Hrtf.Old.Gain = gain;
else
parms.Hrtf.Old.Gain = TargetGain;
}
}