Changeset 8982328 for src

Timestamp:

Sep 5, 2015, 11:07:11 AM (9 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

c9e3a4e

Parents:

7166ef8

Message:

src/mathutils.c: optimized fvec_shift and aubio_level_lin

File:

• src/mathutils.c (modified) (3 diffs)

src/mathutils.c

@@ -29 +29 @@
 #ifdef HAVE_ACCELERATE
 #include <Accelerate/Accelerate.h>
+#endif
+
+#if !HAVE_AUBIO_DOUBLE
+#define aubio_cblas_xswap cblas_sswap
+#define aubio_cblas_dot   cblas_sdot
+#else
+#define aubio_cblas_xswap cblas_dswap
+#define aubio_cblas_dot   cblas_ddot
 #endif
 
@@ -282 +290 @@
 fvec_shift (fvec_t * s)
 {
+#ifndef HAVE_ACCELERATE
   uint_t j;
   for (j = 0; j < s->length / 2; j++) {
     ELEM_SWAP (s->data[j], s->data[j + s->length / 2]);
   }
+#else
+  uint_t half = s->length / 2;
+  aubio_cblas_xswap(half, s->data, 1, s->data + half, 1);
+#endif
 }
 
@@ -292 +305 @@
 {
   smpl_t energy = 0.;
+#ifndef HAVE_ACCELERATE
   uint_t j;
   for (j = 0; j < f->length; j++) {
     energy += SQR (f->data[j]);
   }
+#else
+  energy = aubio_cblas_dot(f->length, f->data, 1, f->data, 1);
+#endif
   return energy / f->length;
 }