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