diff options
Diffstat (limited to 'Alc/mixer_sse.c')
| -rw-r--r-- | Alc/mixer_sse.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/Alc/mixer_sse.c b/Alc/mixer_sse.c index c17a7e08..a2b8461d 100644 --- a/Alc/mixer_sse.c +++ b/Alc/mixer_sse.c @@ -156,6 +156,7 @@ void MixDirect_SSE(DirectParams *params, const ALfloat *restrict data, ALuint sr if(Step != 1.0f && Counter > 0) { DrySend = params->Mix.Gains.Current[srcchan][c]; + /* Mix with applying gain steps in aligned multiples of 4. */ if(BufferSize-pos > 3 && Counter-pos > 3) { gain = _mm_set_ps( @@ -175,14 +176,15 @@ void MixDirect_SSE(DirectParams *params, const ALfloat *restrict data, ALuint sr } while(BufferSize-pos > 3 && Counter-pos > 3); DrySend = _mm_cvtss_f32(_mm_shuffle_ps(gain, gain, _MM_SHUFFLE(3, 3, 3, 3))); } - if(!(BufferSize-pos > 3)) + /* Mix with applying left over gain steps that aren't aligned multiples of 4. */ + for(;pos < BufferSize && pos < Counter;pos++) { - for(;pos < BufferSize && pos < Counter;pos++) - { - OutBuffer[c][OutPos+pos] += data[pos]*DrySend; - DrySend *= Step; - } + OutBuffer[c][OutPos+pos] += data[pos]*DrySend; + DrySend *= Step; } + /* Mix until pos is aligned with 4 or the mix is done. */ + for(;pos < BufferSize && (pos&3) != 0;pos++) + OutBuffer[c][OutPos+pos] += data[pos]*DrySend; params->Mix.Gains.Current[srcchan][c] = DrySend; } @@ -237,14 +239,13 @@ void MixSend_SSE(SendParams *params, const ALfloat *restrict data, } while(BufferSize-pos > 3 && Counter-pos > 3); WetGain = _mm_cvtss_f32(_mm_shuffle_ps(gain, gain, _MM_SHUFFLE(3, 3, 3, 3))); } - if(!(BufferSize-pos > 3)) + for(;pos < BufferSize && pos < Counter;pos++) { - for(;pos < BufferSize && pos < Counter;pos++) - { - OutBuffer[0][OutPos+pos] += data[pos]*WetGain; - WetGain *= Step; - } + OutBuffer[0][OutPos+pos] += data[pos]*WetGain; + WetGain *= Step; } + for(;pos < BufferSize && (pos&3) != 0;pos++) + OutBuffer[0][OutPos+pos] += data[pos]*WetGain; params->Gain.Current = WetGain; } |