diff options
| author | Chris Robinson <[email protected]> | 2015-10-11 07:37:22 -0700 |
|---|---|---|
| committer | Chris Robinson <[email protected]> | 2015-10-11 07:37:22 -0700 |
| commit | 00e419e9480e8d26e5fb5e1f03cc0824a6b8d917 (patch) | |
| tree | f813f217a9f1f6eca1097a81208a83171eeb8f63 /Alc/mixer.c | |
| parent | 0211831858fe42b5a95f6992bbdc3d925d589a75 (diff) | |
Replace the sinc6 resampler with sinc8, and make SSE versions
Diffstat (limited to 'Alc/mixer.c')
| -rw-r--r-- | Alc/mixer.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/Alc/mixer.c b/Alc/mixer.c index 8061ab73..2f38ef3f 100644 --- a/Alc/mixer.c +++ b/Alc/mixer.c @@ -50,7 +50,7 @@ enum Resampler { PointResampler, LinearResampler, FIR4Resampler, - FIR6Resampler, + FIR8Resampler, ResamplerMax, }; @@ -65,7 +65,7 @@ static const ALsizei ResamplerPadding[ResamplerMax][2] = { {0, 0}, /* Point */ {0, 1}, /* Linear */ {1, 2}, /* FIR4 */ - {2, 3}, /* FIR6 */ + {3, 4}, /* FIR8 */ }; @@ -127,8 +127,16 @@ static inline ResamplerFunc SelectResampler(enum Resampler resampler) return Resample_fir4_32_SSE3; #endif return Resample_fir4_32_C; - case FIR6Resampler: - return Resample_fir6_32_C; + case FIR8Resampler: +#ifdef HAVE_SSE4_1 + if((CPUCapFlags&CPU_CAP_SSE4_1)) + return Resample_fir8_32_SSE41; +#endif +#ifdef HAVE_SSE3 + if((CPUCapFlags&CPU_CAP_SSE3)) + return Resample_fir8_32_SSE3; +#endif + return Resample_fir8_32_C; case ResamplerMax: /* Shouldn't happen */ break; @@ -161,8 +169,8 @@ void aluInitMixer(void) DefaultResampler = LinearResampler; else if(strcasecmp(str, "sinc4") == 0) DefaultResampler = FIR4Resampler; - else if(strcasecmp(str, "sinc6") == 0) - DefaultResampler = FIR6Resampler; + else if(strcasecmp(str, "sinc8") == 0) + DefaultResampler = FIR8Resampler; else if(strcasecmp(str, "cubic") == 0) { WARN("Resampler option \"cubic\" is deprecated, using sinc4\n"); @@ -179,16 +187,18 @@ void aluInitMixer(void) } } - if(DefaultResampler == FIR6Resampler) + if(DefaultResampler == FIR8Resampler) for(i = 0;i < FRACTIONONE;i++) { ALdouble mu = (ALdouble)i / FRACTIONONE; - ResampleCoeffs.FIR6[i][0] = lanc(3.0, mu - -2.0); - ResampleCoeffs.FIR6[i][1] = lanc(3.0, mu - -1.0); - ResampleCoeffs.FIR6[i][2] = lanc(3.0, mu - 0.0); - ResampleCoeffs.FIR6[i][3] = lanc(3.0, mu - 1.0); - ResampleCoeffs.FIR6[i][4] = lanc(3.0, mu - 2.0); - ResampleCoeffs.FIR6[i][5] = lanc(3.0, mu - 3.0); + ResampleCoeffs.FIR8[i][0] = lanc(4.0, mu - -3.0); + ResampleCoeffs.FIR8[i][1] = lanc(4.0, mu - -2.0); + ResampleCoeffs.FIR8[i][2] = lanc(4.0, mu - -1.0); + ResampleCoeffs.FIR8[i][3] = lanc(4.0, mu - 0.0); + ResampleCoeffs.FIR8[i][4] = lanc(4.0, mu - 1.0); + ResampleCoeffs.FIR8[i][5] = lanc(4.0, mu - 2.0); + ResampleCoeffs.FIR8[i][6] = lanc(4.0, mu - 3.0); + ResampleCoeffs.FIR8[i][7] = lanc(4.0, mu - 4.0); } else if(DefaultResampler == FIR4Resampler) for(i = 0;i < FRACTIONONE;i++) |