qzdoom/libraries/timidityplus/timiditypp/fft4g.h

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/*
Copyright(C) 1996-1999 Takuya OOURA
email: ooura@mmm.t.u-tokyo.ac.jp
download: http://momonga.t.u-tokyo.ac.jp/~ooura/fft.html
You may use, copy, modify this code for any purpose and
without fee. You may distribute this ORIGINAL package.
*/
namespace TimidityPlus
{
extern void cdft(int, int, float *, int *, float *);
extern void rdft(int, int, float *, int *, float *);
extern void ddct(int, int, float *, int *, float *);
extern void ddst(int, int, float *, int *, float *);
extern void dfct(int, float *, float *, int *, float *);
extern void dfst(int, float *, float *, int *, float *);
}