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Diffstat (limited to 'alc/mixer/mixer_sse.cpp')
| -rw-r--r-- | alc/mixer/mixer_sse.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/alc/mixer/mixer_sse.cpp b/alc/mixer/mixer_sse.cpp new file mode 100644 index 00000000..b763fdbd --- /dev/null +++ b/alc/mixer/mixer_sse.cpp @@ -0,0 +1,262 @@ +#include "config.h" + +#include <xmmintrin.h> + +#include <limits> + +#include "AL/al.h" +#include "AL/alc.h" +#include "alcmain.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, + MixHrtfFilter *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 HrtfFilter *oldparams, MixHrtfFilter *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 al::span<FloatBufferLine> OutBuffer, + ALfloat *CurrentGains, const ALfloat *TargetGains, const ALsizei Counter, const ALsizei OutPos, + const ALsizei BufferSize) +{ + ASSUME(BufferSize > 0); + + const ALfloat delta{(Counter > 0) ? 1.0f / static_cast<ALfloat>(Counter) : 0.0f}; + for(FloatBufferLine &output : OutBuffer) + { + ALfloat *RESTRICT dst{al::assume_aligned<16>(output.data()+OutPos)}; + ALfloat gain{*CurrentGains}; + const ALfloat diff{*TargetGains - gain}; + + ALsizei pos{0}; + 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; + else + gain += step*step_count; + *CurrentGains = 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; + } + ++CurrentGains; + ++TargetGains; + + 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>(FloatBufferLine &OutBuffer, const ALfloat *Gains, + const al::span<const FloatBufferLine> InSamples, const ALsizei InPos, const ALsizei BufferSize) +{ + ASSUME(BufferSize > 0); + + for(const FloatBufferLine &input : InSamples) + { + const ALfloat *RESTRICT src{al::assume_aligned<16>(input.data()+InPos)}; + const ALfloat gain{*(Gains++)}; + 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; + } +} |