diff options
| author | Chris Robinson <[email protected]> | 2012-08-15 08:19:04 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2012-08-15 08:19:04 -0700 |
| commit | 0bca771a88f83e77cd6a5eb04757125b4fa5dc6c (patch) | |
| tree | 5d38eb665129c0b708e1b61634922b54a96d05fb /Alc/mixer_sse.c | |
| parent | f4ff63e2715b28e8ed1fd54e48e3ee6077f1689d (diff) | |
Apply HRTF mixer coefficients with stepping using SSE
Diffstat (limited to 'Alc/mixer_sse.c')
| -rw-r--r-- | Alc/mixer_sse.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/Alc/mixer_sse.c b/Alc/mixer_sse.c index 2da2b6b8..bbca54ec 100644 --- a/Alc/mixer_sse.c +++ b/Alc/mixer_sse.c @@ -10,18 +10,48 @@ #include "alu.h" +static __inline void ApplyCoeffsStep(ALuint Offset, ALfloat (*RESTRICT Values)[2], + ALfloat (*RESTRICT Coeffs)[2], + ALfloat (*RESTRICT CoeffStep)[2], + ALfloat left, ALfloat right) +{ + const __m128 lrlr = { left, right, left, right }; + __m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f }; + __m128 coeffs, coeffstep; + ALuint c; + for(c = 0;c < HRIR_LENGTH;c += 2) + { + const ALuint o0 = (Offset++)&HRIR_MASK; + const ALuint o1 = (Offset++)&HRIR_MASK; + + coeffs = _mm_load_ps(&Coeffs[c][0]); + vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]); + vals = _mm_loadh_pi(vals, (__m64*)&Values[o1][0]); + + vals = _mm_add_ps(vals, _mm_mul_ps(coeffs, lrlr)); + _mm_storel_pi((__m64*)&Values[o0][0], vals); + _mm_storeh_pi((__m64*)&Values[o1][0], vals); + + coeffstep = _mm_load_ps(&CoeffStep[c][0]); + coeffs = _mm_add_ps(coeffs, coeffstep); + _mm_store_ps(&Coeffs[c][0], coeffs); + } +} + static __inline void ApplyCoeffs(ALuint Offset, ALfloat (*RESTRICT Values)[2], ALfloat (*RESTRICT Coeffs)[2], ALfloat left, ALfloat right) { const __m128 lrlr = { left, right, left, right }; + __m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f }; + __m128 coeffs; ALuint c; for(c = 0;c < HRIR_LENGTH;c += 2) { const ALuint o0 = (Offset++)&HRIR_MASK; const ALuint o1 = (Offset++)&HRIR_MASK; - __m128 coeffs = _mm_load_ps(&Coeffs[c][0]); - __m128 vals = { 0.0f, 0.0f, 0.0f, 0.0f }; + + coeffs = _mm_load_ps(&Coeffs[c][0]); vals = _mm_loadl_pi(vals, (__m64*)&Values[o0][0]); vals = _mm_loadh_pi(vals, (__m64*)&Values[o1][0]); |