Mercurial > hg > dmlib
view src/dmfft.h @ 2208:90ec1ec89c56
Revamp the palette handling in lib64gfx somewhat, add helper functions to
lib64util for handling external palette file options and add support for
specifying one of the "internal" palettes or external (.act) palette file to
gfxconv and 64vw.
author | Matti Hamalainen <ccr@tnsp.org> |
---|---|
date | Fri, 14 Jun 2019 05:01:12 +0300 |
parents | 1e5cf1144f36 |
children |
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#ifndef DMFFT_H #define DMFFT_H 1 #include "dmlib.h" typedef double DMFFTType; typedef struct { int npoints; DMFFTType *sinTable; int *breversed; } DMFFTContext; int dmInitializeFFT(DMFFTContext *, int); void dmEndFFT(DMFFTContext *); int dmRealFFT(DMFFTContext *, DMFFTType *); int dmConvertFFTtoFreqDomain(DMFFTContext *ctx, DMFFTType *buffer, DMFFTType *real, DMFFTType *imag); int dmConvertFFTtoFreqAndPower(DMFFTContext *ctx, DMFFTType *buffer, DMFFTType *real, DMFFTType *imag, DMFFTType *power, const DMFFTType scale); int dmConvertFFTtoPowerAndSum(DMFFTContext *ctx, DMFFTType *buffer, DMFFTType *power, const DMFFTType pscale, DMFFTType *sum, const DMFFTType sscale); int dmConvertFFTtoTimeDomain(DMFFTContext *ctx, DMFFTType *buffer, DMFFTType *tdom); #endif // DMFFT_H