#include <math.h>#include <stdlib.h>#include <stdint.h>#include "patchwerk.h"#include "core.h"#include "dsp/phasewarp.h" struct phasewarp_n {    pw_cable *in;    pw_cable *pos;    pw_cable *out;}; static void compute(pw_node *node){    int blksize;    int n;    struct phasewarp_n *phasewarp;     blksize = pw_node_blksize(node);     phasewarp = (struct phasewarp_n *)pw_node_get_data(node);     for (n = 0; n < blksize; n++) {        PWFLT in, pos, out;        in = pw_cable_get(phasewarp->in, n);        pos = pw_cable_get(phasewarp->pos, n);         out = sk_phasewarp_tick(in, pos);        pw_cable_set(phasewarp->out, n, out);    }} static void destroy(pw_node *node){    pw_patch *patch;    int rc;    void *ud;    rc = pw_node_get_patch(node, &patch);    if (rc != PW_OK) return;    pw_node_cables_free(node);    ud = pw_node_get_data(node);    pw_memory_free(patch, &ud);} int sk_node_phasewarp(sk_core *core){    pw_patch *patch;    pw_node *node;    int rc;    sk_param in, pos;    void *ud;    struct phasewarp_n *phasewarp;     rc = sk_param_get(core, &pos);    SK_ERROR_CHECK(rc);     rc = sk_param_get(core, &in);    SK_ERROR_CHECK(rc);     patch = sk_core_patch(core);     rc = pw_memory_alloc(patch, sizeof(struct phasewarp_n), &ud);    SK_PW_ERROR_CHECK(rc);    phasewarp = (struct phasewarp_n *)ud;     rc = pw_patch_new_node(patch, &node);    SK_PW_ERROR_CHECK(rc);     rc = pw_node_cables_alloc(node, 3);    SK_PW_ERROR_CHECK(rc);     pw_node_set_block(node, 2);     pw_node_get_cable(node, 0, &phasewarp->in);    pw_node_get_cable(node, 1, &phasewarp->pos);    pw_node_get_cable(node, 2, &phasewarp->out);     pw_node_set_data(node, phasewarp);    pw_node_set_compute(node, compute);    pw_node_set_destroy(node, destroy);     sk_param_set(core, node, &in, 0);    sk_param_set(core, node, &pos, 1);    sk_param_out(core, node, 2);    return 0;}