diff options
Diffstat (limited to 'Alc/mixer/mixer_sse.cpp')
| -rw-r--r-- | Alc/mixer/mixer_sse.cpp | 106 |
1 files changed, 48 insertions, 58 deletions
diff --git a/Alc/mixer/mixer_sse.cpp b/Alc/mixer/mixer_sse.cpp index 2637883b..df5270e7 100644 --- a/Alc/mixer/mixer_sse.cpp +++ b/Alc/mixer/mixer_sse.cpp @@ -18,13 +18,9 @@ const ALfloat *Resample_bsinc_SSE(const InterpState *state, const ALfloat *RESTR 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; + 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); @@ -32,30 +28,30 @@ const ALfloat *Resample_bsinc_SSE(const InterpState *state, const ALfloat *RESTR ASSUME(frac >= 0); src -= state->bsinc.l; - for(i = 0;i < dstlen;i++) + for(ALsizei 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)); + 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 - offset = m*pi*4; - fil = (const __m128*)(filter + offset); offset += m; - scd = (const __m128*)(filter + offset); offset += m; - phd = (const __m128*)(filter + offset); offset += m; - spd = (const __m128*)(filter + offset); + ALsizei offset{m*pi*4}; + const __m128 *fil{(const __m128*)(filter + offset)}; offset += m; + const __m128 *scd{(const __m128*)(filter + offset)}; offset += m; + const __m128 *phd{(const __m128*)(filter + offset)}; offset += m; + const __m128 *spd{(const __m128*)(filter + offset)}; // Apply the scale and phase interpolated filter. - r4 = _mm_setzero_ps(); + __m128 r4{_mm_setzero_ps()}; { - const ALsizei count = m >> 2; - const __m128 pf4 = _mm_set1_ps(pf); + 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++) + for(ALsizei j{0};j < count;j++) { /* f = ((fil + sf*scd) + pf*(phd + sf*spd)) */ const __m128 f4 = MLA4( @@ -83,9 +79,7 @@ static inline void ApplyCoeffs(ALsizei Offset, ALfloat (&Values)[HRIR_LENGTH][2] const ALsizei IrSize, const ALfloat (&Coeffs)[HRIR_LENGTH][2], const ALfloat left, const ALfloat right) { - const __m128 lrlr = _mm_setr_ps(left, right, left, right); - __m128 vals = _mm_setzero_ps(); - __m128 coeffs; + const __m128 lrlr{_mm_setr_ps(left, right, left, right)}; ASSUME(IrSize >= 2); ASSUME(&Values != &Coeffs); @@ -97,8 +91,8 @@ static inline void ApplyCoeffs(ALsizei Offset, ALfloat (&Values)[HRIR_LENGTH][2] ASSUME(count >= 1); __m128 imp0, imp1; - coeffs = _mm_load_ps(&Coeffs[0][0]); - vals = _mm_loadl_pi(vals, (__m64*)&Values[Offset][0]); + __m128 coeffs{_mm_load_ps(&Coeffs[0][0])}; + __m128 vals{_mm_loadl_pi(_mm_setzero_ps(), (__m64*)&Values[Offset][0])}; imp0 = _mm_mul_ps(lrlr, coeffs); vals = _mm_add_ps(imp0, vals); _mm_storel_pi((__m64*)&Values[Offset][0], vals); @@ -135,8 +129,8 @@ static inline void ApplyCoeffs(ALsizei Offset, ALfloat (&Values)[HRIR_LENGTH][2] { for(;i < count;i += 2) { - coeffs = _mm_load_ps(&Coeffs[i][0]); - vals = _mm_load_ps(&Values[Offset][0]); + __m128 coeffs{_mm_load_ps(&Coeffs[i][0])}; + __m128 vals{_mm_load_ps(&Values[Offset][0])}; vals = _mm_add_ps(vals, _mm_mul_ps(lrlr, coeffs)); _mm_store_ps(&Values[Offset][0], vals); Offset += 2; @@ -159,34 +153,32 @@ void Mix_SSE(const ALfloat *data, ALsizei OutChans, ALfloat (*RESTRICT OutBuffer 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++) + const ALfloat delta{(Counter > 0) ? 1.0f/(ALfloat)Counter : 0.0f}; + for(ALsizei c{0};c < OutChans;c++) { - ALsizei pos = 0; - ALfloat gain = CurrentGains[c]; - const ALfloat diff = TargetGains[c] - gain; + ALsizei pos{0}; + ALfloat gain{CurrentGains[c]}; + const ALfloat diff{TargetGains[c] - gain}; - if(fabsf(diff) > std::numeric_limits<float>::epsilon()) + if(std::fabs(diff) > std::numeric_limits<float>::epsilon()) { - ALsizei minsize = mini(BufferSize, Counter); - const ALfloat step = diff * delta; - ALfloat step_count = 0.0f; + 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; + 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]); + 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)); @@ -219,15 +211,15 @@ void Mix_SSE(const ALfloat *data, ALsizei OutChans, ALfloat (*RESTRICT OutBuffer OutBuffer[c][OutPos+pos] += data[pos]*gain; } - if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) + 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); + 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]); + 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; @@ -240,25 +232,23 @@ void Mix_SSE(const ALfloat *data, ALsizei OutChans, ALfloat (*RESTRICT OutBuffer 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++) + for(ALsizei c{0};c < InChans;c++) { - ALsizei pos = 0; - const ALfloat gain = Gains[c]; - if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) + const ALfloat gain{Gains[c]}; + if(!(std::fabs(gain) > GAIN_SILENCE_THRESHOLD)) continue; + ALsizei pos{0}; if(LIKELY(BufferSize > 3)) { - ALsizei todo = BufferSize >> 2; + 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]); + 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; |