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#include "config.h"
#include <assert.h>
#include "alMain.h"
#include "alu.h"
#include "alSource.h"
#include "alAuxEffectSlot.h"
static inline ALfloat point32(const ALfloat *vals, ALuint UNUSED(frac))
{ return vals[0]; }
static inline ALfloat lerp32(const ALfloat *vals, ALuint frac)
{ return lerp(vals[0], vals[1], frac * (1.0f/FRACTIONONE)); }
static inline ALfloat fir4_32(const ALfloat *vals, ALuint frac)
{ return resample_fir4(vals[-1], vals[0], vals[1], vals[2], frac); }
static inline ALfloat fir6_32(const ALfloat *vals, ALuint frac)
{ return resample_fir6(vals[-2], vals[-1], vals[0], vals[1], vals[2], vals[3], frac); }
const ALfloat *Resample_copy32_C(const ALfloat *src, ALuint UNUSED(frac),
ALuint UNUSED(increment), ALfloat *restrict dst, ALuint numsamples)
{
#if defined(HAVE_SSE) || defined(HAVE_NEON)
/* Avoid copying the source data if it's aligned like the destination. */
if((((intptr_t)src)&15) == (((intptr_t)dst)&15))
return src;
#endif
memcpy(dst, src, numsamples*sizeof(ALfloat));
return dst;
}
#define DECL_TEMPLATE(Sampler) \
const ALfloat *Resample_##Sampler##_C(const ALfloat *src, ALuint frac, \
ALuint increment, ALfloat *restrict dst, ALuint numsamples) \
{ \
ALuint i; \
for(i = 0;i < numsamples;i++) \
{ \
dst[i] = Sampler(src, frac); \
\
frac += increment; \
src += frac>>FRACTIONBITS; \
frac &= FRACTIONMASK; \
} \
return dst; \
}
DECL_TEMPLATE(point32)
DECL_TEMPLATE(lerp32)
DECL_TEMPLATE(fir4_32)
DECL_TEMPLATE(fir6_32)
#undef DECL_TEMPLATE
void ALfilterState_processC(ALfilterState *filter, ALfloat *restrict dst, const ALfloat *src, ALuint numsamples)
{
ALuint i;
for(i = 0;i < numsamples;i++)
*(dst++) = ALfilterState_processSingle(filter, *(src++));
}
static inline void SetupCoeffs(ALfloat (*restrict OutCoeffs)[2],
const HrtfParams *hrtfparams,
ALuint IrSize, ALuint Counter)
{
ALuint c;
for(c = 0;c < IrSize;c++)
{
OutCoeffs[c][0] = hrtfparams->Coeffs[c][0] - (hrtfparams->CoeffStep[c][0]*Counter);
OutCoeffs[c][1] = hrtfparams->Coeffs[c][1] - (hrtfparams->CoeffStep[c][1]*Counter);
}
}
static inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*restrict Values)[2],
const ALuint IrSize,
ALfloat (*restrict Coeffs)[2],
const ALfloat (*restrict CoeffStep)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < IrSize;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
Coeffs[c][0] += CoeffStep[c][0];
Coeffs[c][1] += CoeffStep[c][1];
}
}
static inline void ApplyCoeffs(ALuint Offset, ALfloat (*restrict Values)[2],
const ALuint IrSize,
ALfloat (*restrict Coeffs)[2],
ALfloat left, ALfloat right)
{
ALuint c;
for(c = 0;c < IrSize;c++)
{
const ALuint off = (Offset+c)&HRIR_MASK;
Values[off][0] += Coeffs[c][0] * left;
Values[off][1] += Coeffs[c][1] * right;
}
}
#define MixHrtf MixHrtf_C
#include "mixer_inc.c"
#undef MixHrtf
void Mix_C(const ALfloat *data, ALuint OutChans, ALfloat (*restrict OutBuffer)[BUFFERSIZE],
MixGains *Gains, ALuint Counter, ALuint OutPos, ALuint BufferSize)
{
ALfloat gain, step;
ALuint c;
for(c = 0;c < OutChans;c++)
{
ALuint pos = 0;
gain = Gains[c].Current;
step = Gains[c].Step;
if(step != 0.0f && Counter > 0)
{
ALuint minsize = minu(BufferSize, Counter);
for(;pos < minsize;pos++)
{
OutBuffer[c][OutPos+pos] += data[pos]*gain;
gain += step;
}
if(pos == Counter)
gain = Gains[c].Target;
Gains[c].Current = gain;
}
if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD))
continue;
for(;pos < BufferSize;pos++)
OutBuffer[c][OutPos+pos] += data[pos]*gain;
}
}
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