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#include "config.h"
#include <xmmintrin.h>
#include <limits>
#include "AL/al.h"
#include "AL/alc.h"
#include "alMain.h"
#include "alu.h"
#include "alSource.h"
#include "alAuxEffectSlot.h"
#include "defs.h"
#include "hrtfbase.h"
template<>
const ALfloat *Resample_<BSincTag,SSETag>(const InterpState *state, const ALfloat *RESTRICT src,
ALsizei frac, ALint increment, ALfloat *RESTRICT dst, ALsizei dstlen)
{
const ALfloat *const filter{state->bsinc.filter};
const __m128 sf4{_mm_set1_ps(state->bsinc.sf)};
const ALsizei m{state->bsinc.m};
ASSUME(m > 0);
ASSUME(dstlen > 0);
ASSUME(increment > 0);
ASSUME(frac >= 0);
src -= state->bsinc.l;
for(ALsizei i{0};i < dstlen;i++)
{
// Calculate the phase index and factor.
#define FRAC_PHASE_BITDIFF (FRACTIONBITS-BSINC_PHASE_BITS)
const ALsizei pi{frac >> FRAC_PHASE_BITDIFF};
const ALfloat pf{(frac & ((1<<FRAC_PHASE_BITDIFF)-1)) * (1.0f/(1<<FRAC_PHASE_BITDIFF))};
#undef FRAC_PHASE_BITDIFF
ALsizei offset{m*pi*4};
const __m128 *fil{reinterpret_cast<const __m128*>(filter + offset)}; offset += m;
const __m128 *scd{reinterpret_cast<const __m128*>(filter + offset)}; offset += m;
const __m128 *phd{reinterpret_cast<const __m128*>(filter + offset)}; offset += m;
const __m128 *spd{reinterpret_cast<const __m128*>(filter + offset)};
// Apply the scale and phase interpolated filter.
__m128 r4{_mm_setzero_ps()};
{
const ALsizei count{m >> 2};
const __m128 pf4{_mm_set1_ps(pf)};
ASSUME(count > 0);
#define MLA4(x, y, z) _mm_add_ps(x, _mm_mul_ps(y, z))
for(ALsizei j{0};j < count;j++)
{
/* f = ((fil + sf*scd) + pf*(phd + sf*spd)) */
const __m128 f4 = MLA4(
MLA4(fil[j], sf4, scd[j]),
pf4, MLA4(phd[j], sf4, spd[j])
);
/* r += f*src */
r4 = MLA4(r4, f4, _mm_loadu_ps(&src[j*4]));
}
#undef MLA4
}
r4 = _mm_add_ps(r4, _mm_shuffle_ps(r4, r4, _MM_SHUFFLE(0, 1, 2, 3)));
r4 = _mm_add_ps(r4, _mm_movehl_ps(r4, r4));
dst[i] = _mm_cvtss_f32(r4);
frac += increment;
src += frac>>FRACTIONBITS;
frac &= FRACTIONMASK;
}
return dst;
}
static inline void ApplyCoeffs(ALsizei Offset, float2 *RESTRICT Values, const ALsizei IrSize,
const HrirArray<ALfloat> &Coeffs, const ALfloat left, const ALfloat right)
{
const __m128 lrlr{_mm_setr_ps(left, right, left, right)};
ASSUME(IrSize >= 2);
if((Offset&1))
{
__m128 imp0, imp1;
__m128 coeffs{_mm_load_ps(&Coeffs[0][0])};
__m128 vals{_mm_loadl_pi(_mm_setzero_ps(), reinterpret_cast<__m64*>(&Values[0][0]))};
imp0 = _mm_mul_ps(lrlr, coeffs);
vals = _mm_add_ps(imp0, vals);
_mm_storel_pi(reinterpret_cast<__m64*>(&Values[0][0]), vals);
ALsizei i{1};
for(;i < IrSize-1;i += 2)
{
coeffs = _mm_load_ps(&Coeffs[i+1][0]);
vals = _mm_load_ps(&Values[i][0]);
imp1 = _mm_mul_ps(lrlr, coeffs);
imp0 = _mm_shuffle_ps(imp0, imp1, _MM_SHUFFLE(1, 0, 3, 2));
vals = _mm_add_ps(imp0, vals);
_mm_store_ps(&Values[i][0], vals);
imp0 = imp1;
}
vals = _mm_loadl_pi(vals, reinterpret_cast<__m64*>(&Values[i][0]));
imp0 = _mm_movehl_ps(imp0, imp0);
vals = _mm_add_ps(imp0, vals);
_mm_storel_pi(reinterpret_cast<__m64*>(&Values[i][0]), vals);
}
else
{
for(ALsizei i{0};i < IrSize;i += 2)
{
__m128 coeffs{_mm_load_ps(&Coeffs[i][0])};
__m128 vals{_mm_load_ps(&Values[i][0])};
vals = _mm_add_ps(vals, _mm_mul_ps(lrlr, coeffs));
_mm_store_ps(&Values[i][0], vals);
}
}
}
template<>
void MixHrtf_<SSETag>(FloatBufferLine &LeftOut, FloatBufferLine &RightOut,
const ALfloat *InSamples, float2 *AccumSamples, const ALsizei OutPos, const ALsizei IrSize,
MixHrtfParams *hrtfparams, const ALsizei BufferSize)
{
MixHrtfBase<ApplyCoeffs>(LeftOut, RightOut, InSamples, AccumSamples, OutPos, IrSize,
hrtfparams, BufferSize);
}
template<>
void MixHrtfBlend_<SSETag>(FloatBufferLine &LeftOut, FloatBufferLine &RightOut,
const ALfloat *InSamples, float2 *AccumSamples, const ALsizei OutPos, const ALsizei IrSize,
const HrtfParams *oldparams, MixHrtfParams *newparams, const ALsizei BufferSize)
{
MixHrtfBlendBase<ApplyCoeffs>(LeftOut, RightOut, InSamples, AccumSamples, OutPos, IrSize,
oldparams, newparams, BufferSize);
}
template<>
void MixDirectHrtf_<SSETag>(FloatBufferLine &LeftOut, FloatBufferLine &RightOut,
const al::span<const FloatBufferLine> InSamples, float2 *AccumSamples, DirectHrtfState *State,
const ALsizei BufferSize)
{
MixDirectHrtfBase<ApplyCoeffs>(LeftOut, RightOut, InSamples, AccumSamples, State, BufferSize);
}
template<>
void Mix_<SSETag>(const ALfloat *data, const ALsizei OutChans, ALfloat (*OutBuffer)[BUFFERSIZE],
ALfloat *CurrentGains, const ALfloat *TargetGains, const ALsizei Counter, const ALsizei OutPos,
const ALsizei BufferSize)
{
ASSUME(OutChans > 0);
ASSUME(BufferSize > 0);
const ALfloat delta{(Counter > 0) ? 1.0f / static_cast<ALfloat>(Counter) : 0.0f};
for(ALsizei c{0};c < OutChans;c++)
{
ALfloat *RESTRICT dst{al::assume_aligned<16>(&OutBuffer[c][OutPos])};
ALsizei pos{0};
ALfloat gain{CurrentGains[c]};
const ALfloat diff{TargetGains[c] - gain};
if(std::fabs(diff) > std::numeric_limits<float>::epsilon())
{
ALsizei minsize{mini(BufferSize, Counter)};
const ALfloat step{diff * delta};
ALfloat step_count{0.0f};
/* Mix with applying gain steps in aligned multiples of 4. */
if(LIKELY(minsize > 3))
{
const __m128 four4{_mm_set1_ps(4.0f)};
const __m128 step4{_mm_set1_ps(step)};
const __m128 gain4{_mm_set1_ps(gain)};
__m128 step_count4{_mm_setr_ps(0.0f, 1.0f, 2.0f, 3.0f)};
ALsizei todo{minsize >> 2};
do {
const __m128 val4{_mm_load_ps(&data[pos])};
__m128 dry4{_mm_load_ps(&dst[pos])};
#define MLA4(x, y, z) _mm_add_ps(x, _mm_mul_ps(y, z))
/* dry += val * (gain + step*step_count) */
dry4 = MLA4(dry4, val4, MLA4(gain4, step4, step_count4));
#undef MLA4
_mm_store_ps(&dst[pos], dry4);
step_count4 = _mm_add_ps(step_count4, four4);
pos += 4;
} while(--todo);
/* NOTE: step_count4 now represents the next four counts after
* the last four mixed samples, so the lowest element
* represents the next step count to apply.
*/
step_count = _mm_cvtss_f32(step_count4);
}
/* Mix with applying left over gain steps that aren't aligned multiples of 4. */
for(;pos < minsize;pos++)
{
dst[pos] += data[pos]*(gain + step*step_count);
step_count += 1.0f;
}
if(pos == Counter)
gain = TargetGains[c];
else
gain += step*step_count;
CurrentGains[c] = gain;
/* Mix until pos is aligned with 4 or the mix is done. */
minsize = mini(BufferSize, (pos+3)&~3);
for(;pos < minsize;pos++)
dst[pos] += data[pos]*gain;
}
if(!(std::fabs(gain) > GAIN_SILENCE_THRESHOLD))
continue;
if(LIKELY(BufferSize-pos > 3))
{
ALsizei todo{(BufferSize-pos) >> 2};
const __m128 gain4{_mm_set1_ps(gain)};
do {
const __m128 val4{_mm_load_ps(&data[pos])};
__m128 dry4{_mm_load_ps(&dst[pos])};
dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4));
_mm_store_ps(&dst[pos], dry4);
pos += 4;
} while(--todo);
}
for(;pos < BufferSize;pos++)
dst[pos] += data[pos]*gain;
}
}
template<>
void MixRow_<SSETag>(ALfloat *OutBuffer, const ALfloat *Gains, const ALfloat (*data)[BUFFERSIZE],
const ALsizei InChans, const ALsizei InPos, const ALsizei BufferSize)
{
ASSUME(InChans > 0);
ASSUME(BufferSize > 0);
for(ALsizei c{0};c < InChans;c++)
{
const ALfloat *RESTRICT src{al::assume_aligned<16>(&data[c][InPos])};
const ALfloat gain{Gains[c]};
if(!(std::fabs(gain) > GAIN_SILENCE_THRESHOLD))
continue;
ALsizei pos{0};
if(LIKELY(BufferSize > 3))
{
ALsizei todo{BufferSize >> 2};
const __m128 gain4 = _mm_set1_ps(gain);
do {
const __m128 val4{_mm_load_ps(&src[pos])};
__m128 dry4{_mm_load_ps(&OutBuffer[pos])};
dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4));
_mm_store_ps(&OutBuffer[pos], dry4);
pos += 4;
} while(--todo);
}
for(;pos < BufferSize;pos++)
OutBuffer[pos] += src[pos]*gain;
}
}
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