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Diffstat (limited to 'Alc/mixer/mixer_sse.c')
| -rw-r--r-- | Alc/mixer/mixer_sse.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/Alc/mixer/mixer_sse.c b/Alc/mixer/mixer_sse.c new file mode 100644 index 00000000..725a5ebc --- /dev/null +++ b/Alc/mixer/mixer_sse.c @@ -0,0 +1,250 @@ +#include "config.h" + +#include <xmmintrin.h> + +#include "AL/al.h" +#include "AL/alc.h" +#include "alMain.h" +#include "alu.h" + +#include "alSource.h" +#include "alAuxEffectSlot.h" +#include "defs.h" + + +const ALfloat *Resample_bsinc_SSE(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; + const __m128 *fil, *scd, *phd, *spd; + ALsizei pi, i, j, offset; + ALfloat pf; + __m128 r4; + + ASSUME(m > 0); + ASSUME(dstlen > 0); + + src -= state->bsinc.l; + for(i = 0;i < dstlen;i++) + { + // Calculate the phase index and factor. +#define FRAC_PHASE_BITDIFF (FRACTIONBITS-BSINC_PHASE_BITS) + pi = frac >> FRAC_PHASE_BITDIFF; + pf = (frac & ((1<<FRAC_PHASE_BITDIFF)-1)) * (1.0f/(1<<FRAC_PHASE_BITDIFF)); +#undef FRAC_PHASE_BITDIFF + + offset = m*pi*4; + fil = (const __m128*)ASSUME_ALIGNED(filter + offset, 16); offset += m; + scd = (const __m128*)ASSUME_ALIGNED(filter + offset, 16); offset += m; + phd = (const __m128*)ASSUME_ALIGNED(filter + offset, 16); offset += m; + spd = (const __m128*)ASSUME_ALIGNED(filter + offset, 16); + + // Apply the scale and phase interpolated filter. + 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(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, ALfloat (*restrict Values)[2], + const ALsizei IrSize, + const ALfloat (*restrict Coeffs)[2], + ALfloat left, ALfloat right) +{ + const __m128 lrlr = _mm_setr_ps(left, right, left, right); + __m128 vals = _mm_setzero_ps(); + __m128 coeffs; + ALsizei i; + + Values = ASSUME_ALIGNED(Values, 16); + Coeffs = ASSUME_ALIGNED(Coeffs, 16); + if((Offset&1)) + { + const ALsizei o0 = Offset&HRIR_MASK; + const ALsizei o1 = (Offset+IrSize-1)&HRIR_MASK; + __m128 imp0, imp1; + + coeffs = _mm_load_ps(&Coeffs[0][0]); + vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]); + imp0 = _mm_mul_ps(lrlr, coeffs); + vals = _mm_add_ps(imp0, vals); + _mm_storel_pi((__m64*)&Values[o0][0], vals); + for(i = 1;i < IrSize-1;i += 2) + { + const ALsizei o2 = (Offset+i)&HRIR_MASK; + + coeffs = _mm_load_ps(&Coeffs[i+1][0]); + vals = _mm_load_ps(&Values[o2][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[o2][0], vals); + imp0 = imp1; + } + vals = _mm_loadl_pi(vals, (__m64*)&Values[o1][0]); + imp0 = _mm_movehl_ps(imp0, imp0); + vals = _mm_add_ps(imp0, vals); + _mm_storel_pi((__m64*)&Values[o1][0], vals); + } + else + { + for(i = 0;i < IrSize;i += 2) + { + const ALsizei o = (Offset + i)&HRIR_MASK; + + coeffs = _mm_load_ps(&Coeffs[i][0]); + vals = _mm_load_ps(&Values[o][0]); + vals = _mm_add_ps(vals, _mm_mul_ps(lrlr, coeffs)); + _mm_store_ps(&Values[o][0], vals); + } + } +} + +#define MixHrtf MixHrtf_SSE +#define MixHrtfBlend MixHrtfBlend_SSE +#define MixDirectHrtf MixDirectHrtf_SSE +#include "hrtf_inc.c" + + +void Mix_SSE(const ALfloat *data, ALsizei OutChans, ALfloat (*restrict OutBuffer)[BUFFERSIZE], + ALfloat *CurrentGains, const ALfloat *TargetGains, ALsizei Counter, ALsizei OutPos, + ALsizei BufferSize) +{ + const ALfloat delta = (Counter > 0) ? 1.0f/(ALfloat)Counter : 0.0f; + ALsizei c; + + ASSUME(OutChans > 0); + ASSUME(BufferSize > 0); + + for(c = 0;c < OutChans;c++) + { + ALsizei pos = 0; + ALfloat gain = CurrentGains[c]; + const ALfloat diff = TargetGains[c] - gain; + + if(fabsf(diff) > FLT_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(&OutBuffer[c][OutPos+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(&OutBuffer[c][OutPos+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++) + { + OutBuffer[c][OutPos+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++) + OutBuffer[c][OutPos+pos] += data[pos]*gain; + } + + if(!(fabsf(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(&OutBuffer[c][OutPos+pos]); + dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4)); + _mm_store_ps(&OutBuffer[c][OutPos+pos], dry4); + pos += 4; + } while(--todo); + } + for(;pos < BufferSize;pos++) + OutBuffer[c][OutPos+pos] += data[pos]*gain; + } +} + +void MixRow_SSE(ALfloat *OutBuffer, const ALfloat *Gains, const ALfloat (*restrict data)[BUFFERSIZE], ALsizei InChans, ALsizei InPos, ALsizei BufferSize) +{ + ALsizei c; + + ASSUME(InChans > 0); + ASSUME(BufferSize > 0); + + for(c = 0;c < InChans;c++) + { + ALsizei pos = 0; + const ALfloat gain = Gains[c]; + if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) + continue; + + if(LIKELY(BufferSize > 3)) + { + ALsizei todo = BufferSize >> 2; + const __m128 gain4 = _mm_set1_ps(gain); + do { + const __m128 val4 = _mm_load_ps(&data[c][InPos+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] += data[c][InPos+pos]*gain; + } +} |