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Merge 31018eaea6 into 7811f7d428

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polluxsynth 2021-01-24 11:11:28 -05:00 committed by GitHub
commit 43a7e4c21f
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1 changed files with 5 additions and 3 deletions
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8
tools/kiss_fftr.c
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@ -33,6 +33,8 @@ kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem,size_t * lenme
nfft >>= 1; nfft >>= 1;
kiss_fft_alloc (nfft, inverse_fft, NULL, &subsize); kiss_fft_alloc (nfft, inverse_fft, NULL, &subsize);
/* nfft kiss_fft_cpx'es for the tmpbuf; half as many for the
* super_twiddles */
memneeded = sizeof(struct kiss_fftr_state) + subsize + sizeof(kiss_fft_cpx) * ( nfft * 3 / 2); memneeded = sizeof(struct kiss_fftr_state) + subsize + sizeof(kiss_fft_cpx) * ( nfft * 3 / 2);
if (lenmem == NULL) { if (lenmem == NULL) {
@ -45,9 +47,9 @@ kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem,size_t * lenme
if (!st) if (!st)
return NULL; return NULL;
st->substate = (kiss_fft_cfg) (st + 1); /*just beyond kiss_fftr_state struct */ st->tmpbuf = (kiss_fft_cpx *) (st + 1); /*just beyond kiss_fftr_state struct */
st->tmpbuf = (kiss_fft_cpx *) (((char *) st->substate) + subsize); st->super_twiddles = st->tmpbuf + nfft; /*just beyond tmpbuf */
st->super_twiddles = st->tmpbuf + nfft; st->substate = (kiss_fft_cfg) (st->tmpbuf + nfft * 3 / 2); /*just beyond super_twiddles */
kiss_fft_alloc(nfft, inverse_fft, st->substate, &subsize); kiss_fft_alloc(nfft, inverse_fft, st->substate, &subsize);
for (i = 0; i < nfft/2; ++i) { for (i = 0; i < nfft/2; ++i) {