diff options
Diffstat (limited to 'alc/mixer/mixer_sse.cpp')
| -rw-r--r-- | alc/mixer/mixer_sse.cpp | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/alc/mixer/mixer_sse.cpp b/alc/mixer/mixer_sse.cpp index b5958c8e..b3454898 100644 --- a/alc/mixer/mixer_sse.cpp +++ b/alc/mixer/mixer_sse.cpp @@ -229,33 +229,30 @@ void Mix_<SSETag>(const ALfloat *data, const al::span<FloatBufferLine> OutBuffer } template<> -void MixRow_<SSETag>(ALfloat *OutBuffer, const al::span<const ALfloat> Gains, - const ALfloat *InSamples, const ALsizei InStride, const ALsizei BufferSize) +void MixRow_<SSETag>(const al::span<float> OutBuffer, const al::span<const float> Gains, + const float *InSamples, const size_t InStride) { - ASSUME(BufferSize > 0); - - for(const ALfloat gain : Gains) + for(const float gain : Gains) { - const ALfloat *RESTRICT src{InSamples}; + const float *RESTRICT src{InSamples}; InSamples += InStride; if(!(std::fabs(gain) > GAIN_SILENCE_THRESHOLD)) continue; - ALsizei pos{0}; - if LIKELY(BufferSize > 3) + auto out_iter = OutBuffer.begin(); + if(size_t todo{OutBuffer.size() >> 2}) { - 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])}; + const __m128 val4{_mm_load_ps(src)}; + __m128 dry4{_mm_load_ps(out_iter)}; dry4 = _mm_add_ps(dry4, _mm_mul_ps(val4, gain4)); - _mm_store_ps(&OutBuffer[pos], dry4); - pos += 4; + _mm_store_ps(out_iter, dry4); + out_iter += 4; src += 4; } while(--todo); } - for(;pos < BufferSize;pos++) - OutBuffer[pos] += src[pos]*gain; + std::transform(out_iter, OutBuffer.end(), src, out_iter, + [gain](const ALfloat cur, const ALfloat src) -> ALfloat { return cur + src*gain; }); } } |