Add SSE2 and SSE4.1 linear resamplers

Currently the only way SSE 4.1 is detected is by using __get_cpuid, i.e. with
GCC. Windows' IsProcessorFeaturePresent does not report SSE4.1 capabilities.

1 files changed, 8 insertions, 0 deletions

diff --git a/Alc/ALu.c b/Alc/ALu.c
index e661af1d..488a7273 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -91,6 +91,14 @@ static ResamplerFunc SelectResampler(enum Resampler Resampler, ALuint increment)
         case PointResampler:
             return Resample_point32_C;
         case LinearResampler:
+#ifdef HAVE_SSE4_1
+            if((CPUCapFlags&CPU_CAP_SSE4_1))
+                return Resample_lerp32_SSE41;
+#endif
+#ifdef HAVE_SSE2
+            if((CPUCapFlags&CPU_CAP_SSE2))
+                return Resample_lerp32_SSE2;
+#endif
             return Resample_lerp32_C;
         case CubicResampler:
             return Resample_cubic32_C;