#include "libavcodec/dsputil.h"
#include "gcc_fixes.h"
#include "dsputil_ppc.h"
#include "util_altivec.h"
Go to the source code of this file.
Functions | |
void | ff_fft_calc_altivec (FFTContext *s, FFTComplex *z) |
Do a complex FFT with the parameters defined in ff_fft_init(). |
void ff_fft_calc_altivec | ( | FFTContext * | s, | |
FFTComplex * | z | |||
) |
Do a complex FFT with the parameters defined in ff_fft_init().
The input data must be permuted before with s->revtab table. No 1.0/sqrt(n) normalization is done. AltiVec-enabled This code assumes that the 'z' pointer is 16 bytes-aligned It also assumes all FFTComplex are 8 bytes-aligned pair of float The code is exactly the same as the SSE version, except that successive MUL + ADD/SUB have been merged into fused multiply-add ('vec_madd' in altivec)
Definition at line 40 of file fft_altivec.c.
Referenced by ff_fft_init().