/* SoX Resampler Library      Copyright (c) 2007-13 robs@users.sourceforge.net
 * Licence for this file: LGPL v2.1                  See LICENCE for details. */

#define _soxr_simd_aligned_free free
#define _soxr_simd_aligned_malloc malloc
#define PFFFT_SIMD_DISABLE
#include "pffft.c"
#include "filter.h"

static void * setup(int len) {return pffft_new_setup(len, PFFFT_REAL);}
static void delete_setup(void * setup) {pffft_destroy_setup(setup);}
static void forward  (int length, void * setup, float * h, float * scratch) {pffft_transform        (setup, h, h, scratch, PFFFT_FORWARD); (void)length;}
static void oforward (int length, void * setup, float * h, float * scratch) {pffft_transform_ordered(setup, h, h, scratch, PFFFT_FORWARD); (void)length;}
static void backward (int length, void * setup, float * H, float * scratch) {pffft_transform        (setup, H, H, scratch, PFFFT_BACKWARD);(void)length;}
static void obackward(int length, void * setup, float * H, float * scratch) {pffft_transform_ordered(setup, H, H, scratch, PFFFT_BACKWARD);(void)length;}
static void convolve(int length, void * setup, float * H, float const * with) { pffft_zconvolve(setup, H, with, H);  (void)length;}
static int multiplier(void) {return 1;}

typedef void (* fn_t)(void);
fn_t _soxr_rdft32_cb[] = {
  (fn_t)setup,
  (fn_t)setup,
  (fn_t)delete_setup,
  (fn_t)forward,
  (fn_t)oforward,
  (fn_t)backward,
  (fn_t)obackward,
  (fn_t)convolve,
  (fn_t)_soxr_ordered_partial_convolve_f,
  (fn_t)multiplier,
  (fn_t)pffft_reorder_back,
};