diff options
Diffstat (limited to 'Alc/mixer/mixer_sse.c')
| -rw-r--r-- | Alc/mixer/mixer_sse.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/Alc/mixer/mixer_sse.c b/Alc/mixer/mixer_sse.c index fa79eb4d..5b4208f9 100644 --- a/Alc/mixer/mixer_sse.c +++ b/Alc/mixer/mixer_sse.c @@ -215,7 +215,6 @@ 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) { - __m128 gain4; ALsizei c; ASSUME(InChans > 0); @@ -228,13 +227,17 @@ void MixRow_SSE(ALfloat *OutBuffer, const ALfloat *Gains, const ALfloat (*restri if(!(fabsf(gain) > GAIN_SILENCE_THRESHOLD)) continue; - gain4 = _mm_set1_ps(gain); - for(;BufferSize-pos > 3;pos += 4) + if(LIKELY(BufferSize > 3)) { - 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); + 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; |