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Don't feed the HRTF mix to the click removal and pending click buffers

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The coefficients (which control the volume and panning) already use stepping to
non-abruptly fade the mix.
This commit is contained in:
Chris Robinson 2014-03-23 07:18:49 -07:00
parent 81e049bd47
commit 92433532fe
1 changed files with 3 additions and 40 deletions
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43
Alc/mixer_inc.c
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@ -5,13 +5,6 @@
#include "hrtf.h"
#include "mixer_defs.h"
#ifdef __GNUC__
#define LIKELY(x) __builtin_expect(!!(x), 1)
#define UNLIKELY(x) __builtin_expect(!!(x), 0)
#else
#define LIKELY(x) (x)
#define UNLIKELY(x) (x)
#endif
#define REAL_MERGE2(a,b) a##b
#define MERGE2(a,b) REAL_MERGE2(a,b)
@ -31,11 +24,9 @@ static inline void ApplyCoeffs(ALuint Offset, ALfloat (*restrict Values)[2],
void MixDirect_Hrtf(DirectParams *params, const ALfloat *restrict data, ALuint srcchan,
ALuint OutPos, ALuint SamplesToDo, ALuint BufferSize)
ALuint OutPos, ALuint UNUSED(SamplesToDo), ALuint BufferSize)
{
ALfloat (*restrict DryBuffer)[BUFFERSIZE] = params->OutBuffer;
ALfloat *restrict ClickRemoval = params->ClickRemoval;
ALfloat *restrict PendingClicks = params->PendingClicks;
const ALuint IrSize = params->Mix.Hrtf.Params.IrSize;
const ALint *restrict DelayStep = params->Mix.Hrtf.Params.DelayStep;
const ALfloat (*restrict CoeffStep)[2] = params->Mix.Hrtf.Params.CoeffStep;
@ -43,7 +34,7 @@ void MixDirect_Hrtf(DirectParams *params, const ALfloat *restrict data, ALuint s
const ALuint *restrict TargetDelay = params->Mix.Hrtf.Params.Delay[srcchan];
ALfloat *restrict History = params->Mix.Hrtf.State.History[srcchan];
ALfloat (*restrict Values)[2] = params->Mix.Hrtf.State.Values[srcchan];
ALint Counter = maxu(params->Counter, OutPos) - OutPos;
ALuint Counter = maxu(params->Counter, OutPos) - OutPos;
ALuint Offset = params->Offset + OutPos;
ALIGN(16) ALfloat Coeffs[HRIR_LENGTH][2];
ALuint Delay[2];
@ -61,22 +52,7 @@ void MixDirect_Hrtf(DirectParams *params, const ALfloat *restrict data, ALuint s
Delay[0] = TargetDelay[0] - (DelayStep[0]*Counter);
Delay[1] = TargetDelay[1] - (DelayStep[1]*Counter);
if(LIKELY(OutPos == 0))
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = lerp(History[(Offset-(Delay[0]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[0]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[0]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
right = lerp(History[(Offset-(Delay[1]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
History[(Offset-(Delay[1]>>HRTFDELAY_BITS)-1)&SRC_HISTORY_MASK],
(Delay[1]&HRTFDELAY_MASK)*(1.0f/HRTFDELAY_FRACONE));
ClickRemoval[FrontLeft] -= Values[(Offset+1)&HRIR_MASK][0] +
Coeffs[0][0] * left;
ClickRemoval[FrontRight] -= Values[(Offset+1)&HRIR_MASK][1] +
Coeffs[0][1] * right;
}
for(pos = 0;pos < BufferSize && Counter > 0;pos++)
for(pos = 0;pos < BufferSize && pos < Counter;pos++)
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = lerp(History[(Offset-(Delay[0]>>HRTFDELAY_BITS))&SRC_HISTORY_MASK],
@ -96,9 +72,7 @@ void MixDirect_Hrtf(DirectParams *params, const ALfloat *restrict data, ALuint s
ApplyCoeffsStep(Offset, Values, IrSize, Coeffs, CoeffStep, left, right);
DryBuffer[FrontLeft][OutPos] += Values[Offset&HRIR_MASK][0];
DryBuffer[FrontRight][OutPos] += Values[Offset&HRIR_MASK][1];
OutPos++;
Counter--;
}
Delay[0] >>= HRTFDELAY_BITS;
@ -119,17 +93,6 @@ void MixDirect_Hrtf(DirectParams *params, const ALfloat *restrict data, ALuint s
OutPos++;
}
if(LIKELY(OutPos == SamplesToDo))
{
History[Offset&SRC_HISTORY_MASK] = data[pos];
left = History[(Offset-Delay[0])&SRC_HISTORY_MASK];
right = History[(Offset-Delay[1])&SRC_HISTORY_MASK];
PendingClicks[FrontLeft] += Values[(Offset+1)&HRIR_MASK][0] +
Coeffs[0][0] * left;
PendingClicks[FrontRight] += Values[(Offset+1)&HRIR_MASK][1] +
Coeffs[0][1] * right;
}
}