d2608e4bde
It notably simplifies things to mix HRTF sources into an accumulation buffer together, which the Dry buffer's Ambisonic-to-HRTF decode is then added to, before being mixed to the Real output.
69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
#ifndef MIXER_DEFS_H
|
|
#define MIXER_DEFS_H
|
|
|
|
#include "AL/al.h"
|
|
|
|
#include "alcmain.h"
|
|
#include "alspan.h"
|
|
#include "hrtf.h"
|
|
|
|
union InterpState;
|
|
struct MixHrtfFilter;
|
|
|
|
|
|
enum InstSetType {
|
|
CTag,
|
|
SSETag,
|
|
SSE2Tag,
|
|
SSE3Tag,
|
|
SSE4Tag,
|
|
NEONTag
|
|
};
|
|
|
|
enum ResampleType {
|
|
CopyTag,
|
|
PointTag,
|
|
LerpTag,
|
|
CubicTag,
|
|
BSincTag,
|
|
FastBSincTag
|
|
};
|
|
|
|
template<ResampleType TypeTag, InstSetType InstTag>
|
|
const ALfloat *Resample_(const InterpState *state, const ALfloat *RESTRICT src, ALuint frac,
|
|
ALuint increment, const al::span<float> dst);
|
|
|
|
template<InstSetType InstTag>
|
|
void Mix_(const al::span<const float> InSamples, const al::span<FloatBufferLine> OutBuffer,
|
|
float *CurrentGains, const float *TargetGains, const size_t Counter, const size_t OutPos);
|
|
template<InstSetType InstTag>
|
|
void MixRow_(const al::span<float> OutBuffer, const al::span<const float> Gains,
|
|
const float *InSamples, const size_t InStride);
|
|
|
|
template<InstSetType InstTag>
|
|
void MixHrtf_(const float *InSamples, float2 *AccumSamples, const ALuint IrSize,
|
|
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);
|
|
template<InstSetType InstTag>
|
|
void MixDirectHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut,
|
|
const al::span<const FloatBufferLine> InSamples, float2 *AccumSamples, DirectHrtfState *State,
|
|
const size_t BufferSize);
|
|
|
|
/* Vectorized resampler helpers */
|
|
inline void InitPosArrays(ALuint frac, ALuint increment, ALuint *frac_arr, ALuint *pos_arr,
|
|
size_t size)
|
|
{
|
|
pos_arr[0] = 0;
|
|
frac_arr[0] = frac;
|
|
for(size_t i{1};i < size;i++)
|
|
{
|
|
const ALuint frac_tmp{frac_arr[i-1] + increment};
|
|
pos_arr[i] = pos_arr[i-1] + (frac_tmp>>FRACTIONBITS);
|
|
frac_arr[i] = frac_tmp&FRACTIONMASK;
|
|
}
|
|
}
|
|
|
|
#endif /* MIXER_DEFS_H */
|