FFT Plugin: Revamp the main code to rid it of 64-bit math. Use 32-bit kiss_fft_scalar because 16-bit integers are generally a poor choice for computation on-target. Simplify display code to speed it up. Add logarithmic frequency display (need keymappings, guessed on some). On dual-core, perform FFT on COP. Add some support function to fixedpoint.c. ... and stuff.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26470 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 4 deletions

diff --git a/apps/plugins/fft/kiss_fftr.c b/apps/plugins/fft/kiss_fftr.c
index 7fa29b98e8..dc7eab756a 100644
--- a/apps/plugins/fft/kiss_fftr.c
+++ b/apps/plugins/fft/kiss_fftr.c
@@ -48,12 +48,11 @@ kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem,size_t * lenme
     for (i = 0; i < nfft/2; ++i) {
         /*double phase =
             -3.14159265358979323846264338327 * ((double) (i+1) / nfft + .5);*/
-        if (inverse_fft)
-        {
+        if (inverse_fft) {
             DEBUGF("Inverse FFT not implemented!"); /*phase *= -1;*/
-        }
+        }
         
-        kf_cexp_round (st->super_twiddles+i, i+1, nfft);
+        kf_cexp_round (st->super_twiddles+i, i+1, nfft);
     }
     return st;
 }