35 lines
1.5 KiB
C
35 lines
1.5 KiB
C
/* SoX Resampler Library Copyright (c) 2007-16 robs@users.sourceforge.net
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* Licence for this file: LGPL v2.1 See LICENCE for details. */
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#define PFFFT_DOUBLE 1
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#include "pffft-wrap.c"
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#include "rdft_t.h"
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static void * setup(int len) {return pffft_new_setup(len, PFFFT_REAL);}
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static void forward (int length, void * setup, double * h, double * scratch) {pffft_transform (setup, h, h, scratch, PFFFT_FORWARD); (void)length;}
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static void oforward (int length, void * setup, double * h, double * scratch) {pffft_transform_ordered(setup, h, h, scratch, PFFFT_FORWARD); (void)length;}
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static void backward (int length, void * setup, double * H, double * scratch) {pffft_transform (setup, H, H, scratch, PFFFT_BACKWARD);(void)length;}
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static void obackward(int length, void * setup, double * H, double * scratch) {pffft_transform_ordered(setup, H, H, scratch, PFFFT_BACKWARD);(void)length;}
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static void convolve(int length, void * setup, double * H, double const * with) {pffft_zconvolve(setup, H, with, H); (void)length;}
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static int multiplier(void) {return 1;}
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static int flags(void) {return RDFT_IS_SIMD | RDFT_NEEDS_SCRATCH;}
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fn_t _soxr_rdft64s_cb[] = {
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(fn_t)setup,
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(fn_t)setup,
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(fn_t)pffft_destroy_setup,
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(fn_t)forward,
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(fn_t)oforward,
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(fn_t)backward,
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(fn_t)obackward,
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(fn_t)convolve,
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(fn_t)ORDERED_PARTIAL_CONVOLVE_SIMD,
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(fn_t)multiplier,
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(fn_t)pffft_reorder_back,
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(fn_t)SIMD_ALIGNED_MALLOC,
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(fn_t)SIMD_ALIGNED_CALLOC,
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(fn_t)SIMD_ALIGNED_FREE,
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(fn_t)flags,
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};
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