mirror/kissfft
1
0
Fork 0
mirror of https://github.com/mborgerding/kissfft.git synced 2025-07-18 21:14:24 -04:00
Code Issues Packages Projects Releases Wiki Activity

alignment fixing for USE_SIMD - all memory allocations are rounded

Browse Source 
up to 16-byte boundaries.  This fixes crashes where the sub-buffers
for complex FFTs end up unaligned violating compiler expectations
This commit is contained in:
Ben Supnik
2020-04-18 20:43:26 -04:00
parent 33d9ad3bad
commit 58cf0c0fc1
5 changed files with 41 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
kiss_fft.c
View File

@ -332,9 +332,11 @@ void kf_factor(int n,int * facbuf)
* */
kiss_fft_cfg kiss_fft_alloc(int nfft,int inverse_fft,void * mem,size_t * lenmem )
{
KISS_FFT_ALIGN_CHECK(mem)
kiss_fft_cfg st=NULL;
size_t memneeded = sizeof(struct kiss_fft_state)
+ sizeof(kiss_fft_cpx)*(nfft-1); /* twiddle factors*/
size_t memneeded = KISS_FFT_ALIGN_SIZE_UP(sizeof(struct kiss_fft_state)
+ sizeof(kiss_fft_cpx)*(nfft-1)); /* twiddle factors*/
if ( lenmem==NULL ) {
st = ( kiss_fft_cfg)KISS_FFT_MALLOC( memneeded );