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Don't bother returning the IR length for B-Format decoding

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This commit is contained in:
Chris Robinson 2017-07-31 01:20:42 -07:00
parent e5431bbef7
commit 88c0d22e7c
3 changed files with 5 additions and 7 deletions
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4
Alc/hrtf.c
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@ -181,7 +181,7 @@ void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth,
}
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount)
void BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount)
{
/* Set this to 2 for dual-band HRTF processing. May require a higher quality
* band-splitter, or better calculation of the new IR length to deal with the
@ -288,7 +288,7 @@ ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsize
max_length = RoundUp(max_length, MOD_IR_SIZE);
TRACE("Skipped min delay: %d, new combined length: %d\n", min_delay, max_length);
return max_length;
state->IrSize = max_length;
#undef NUM_BANDS
}

3
Alc/hrtf.h
View File

@ -45,8 +45,7 @@ void GetHrtfCoeffs(const struct Hrtf *Hrtf, ALfloat elevation, ALfloat azimuth,
* Produces HRTF filter coefficients for decoding B-Format, given a set of
* virtual speaker positions and HF/LF matrices for decoding to them. The
* returned coefficients are ordered and scaled according to the matrices.
* Returns the maximum impulse-response length of the generated coefficients.
*/
ALsizei BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount);
void BuildBFormatHrtf(const struct Hrtf *Hrtf, DirectHrtfState *state, ALsizei NumChannels, const ALfloat (*restrict AmbiPoints)[2], const ALfloat (*restrict AmbiMatrix)[2][MAX_AMBI_COEFFS], ALsizei AmbiCount);
#endif /* ALC_HRTF_H */

5
Alc/panning.c
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@ -951,9 +951,8 @@ static void InitHrtfPanning(ALCdevice *device)
device->RealOut.NumChannels = ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder);
device->Hrtf->IrSize = BuildBFormatHrtf(device->HrtfHandle,
device->Hrtf, device->Dry.NumChannels,
AmbiPoints, AmbiMatrix, COUNTOF(AmbiPoints)
BuildBFormatHrtf(device->HrtfHandle,
device->Hrtf, device->Dry.NumChannels, AmbiPoints, AmbiMatrix, COUNTOF(AmbiPoints)
);
}