alc/mixer/defs.h

   1 #ifndef MIXER_DEFS_H
   2 #define MIXER_DEFS_H
   3
   4 #include "AL/al.h"
   5
   6 #include "alcmain.h"
   7 #include "alspan.h"
   8 #include "alu.h"
   9 #include "hrtf.h"
  10
  11
  12 enum InstSetType {
  13     CTag,
  14     SSETag,
  15     SSE2Tag,
  16     SSE3Tag,
  17     SSE4Tag,
  18     NEONTag
  19 };
  20
  21 enum ResampleType {
  22     CopyTag,
  23     PointTag,
  24     LerpTag,
  25     CubicTag,
  26     BSincTag,
  27     FastBSincTag
  28 };
  29
  30 template<ResampleType TypeTag, InstSetType InstTag>
  31 const ALfloat *Resample_(const InterpState *state, const ALfloat *RESTRICT src, ALuint frac,
  32     ALuint increment, const al::span<float> dst);
  33
  34 template<InstSetType InstTag>
  35 void Mix_(const al::span<const float> InSamples, const al::span<FloatBufferLine> OutBuffer,
  36     float *CurrentGains, const float *TargetGains, const size_t Counter, const size_t OutPos);
  37 template<InstSetType InstTag>
  38 void MixRow_(const al::span<float> OutBuffer, const al::span<const float> Gains,
  39     const float *InSamples, const size_t InStride);
  40
  41 template<InstSetType InstTag>
  42 void MixHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const ALfloat *InSamples, float2 *AccumSamples, const size_t OutPos, const ALuint IrSize, MixHrtfFilter *hrtfparams, const size_t BufferSize);
  43 template<InstSetType InstTag>
  44 void MixHrtfBlend_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const ALfloat *InSamples, float2 *AccumSamples, const size_t OutPos, const ALuint IrSize, const HrtfFilter *oldparams, MixHrtfFilter *newparams, const size_t BufferSize);
  45 template<InstSetType InstTag>
  46 void MixDirectHrtf_(FloatBufferLine &LeftOut, FloatBufferLine &RightOut, const al::span<const FloatBufferLine> InSamples, float2 *AccumSamples, DirectHrtfState *State, const size_t BufferSize);
  47
  48 /* Vectorized resampler helpers */
  49 inline void InitPosArrays(ALuint frac, ALuint increment, ALuint *frac_arr, ALuint *pos_arr,
  50     size_t size)
  51 {
  52     pos_arr[0] = 0;
  53     frac_arr[0] = frac;
  54     for(size_t i{1};i < size;i++)
  55     {
  56         const ALuint frac_tmp{frac_arr[i-1] + increment};
  57         pos_arr[i] = pos_arr[i-1] + (frac_tmp>>FRACTIONBITS);
  58         frac_arr[i] = frac_tmp&FRACTIONMASK;
  59     }
  60 }
  61
  62 #endif /* MIXER_DEFS_H */