Chris@32: "use strict";
Chris@32: 
Chris@32: var nayukiCModule = NayukiCModule({});
Chris@32: 
Chris@32: var nc_precalc = nayukiCModule.cwrap(
Chris@32:     'precalc', 'number', ['number']
Chris@32: );
Chris@32: 
Chris@32: var nc_dispose = nayukiCModule.cwrap(
Chris@32:     'dispose', 'void', ['number']
Chris@32: );
Chris@32: 
Chris@32: var nc_transform_radix2_precalc = nayukiCModule.cwrap(
Chris@32:     'transform_radix2_precalc', 'void', ['number', 'number', 'number', 'number']
Chris@32: );
Chris@32: 
Chris@33: var nc_precalc_f = nayukiCModule.cwrap(
Chris@33:     'precalc_f', 'number', ['number']
Chris@33: );
Chris@33: 
Chris@33: var nc_dispose_f = nayukiCModule.cwrap(
Chris@33:     'dispose_f', 'void', ['number']
Chris@33: );
Chris@33: 
Chris@33: var nc_transform_radix2_precalc_f = nayukiCModule.cwrap(
Chris@33:     'transform_radix2_precalc_f', 'void', ['number', 'number', 'number', 'number']
Chris@33: );
Chris@33: 
Chris@32: function FFTNayukiC(n) {
Chris@32: 
Chris@32:     this.n = n;
Chris@32:     this.rptr = nayukiCModule._malloc(n*8 + n*8);
Chris@32:     this.iptr = this.rptr + n*8;
Chris@32:     this.rarr = new Float64Array(nayukiCModule.HEAPU8.buffer, this.rptr, n);
Chris@32:     this.iarr = new Float64Array(nayukiCModule.HEAPU8.buffer, this.iptr, n);
Chris@32:     this.tables = nc_precalc(n);
Chris@32: 
Chris@32:     this.forward = function(real, imag) {
Chris@32: 	this.rarr.set(real);
Chris@32: 	this.iarr.set(imag);
Chris@32: 	nc_transform_radix2_precalc(this.rptr, this.iptr, this.n, this.tables);
Chris@32: 	real.set(this.rarr);
Chris@32: 	imag.set(this.iarr);
Chris@32:     };
Chris@32: 
Chris@32:     this.dispose = function() {
Chris@32: 	nayukiCModule._free(this.rptr);
Chris@32: 	nc_dispose(this.tables);
Chris@32:     }
Chris@32: }
Chris@32: 
Chris@33: function FFTNayukiCFloat(n) {
Chris@33: 
Chris@33:     this.n = n;
Chris@33:     this.rptr = nayukiCModule._malloc(n*4 + n*4);
Chris@33:     this.iptr = this.rptr + n*4;
Chris@33:     this.rarr = new Float32Array(nayukiCModule.HEAPU8.buffer, this.rptr, n);
Chris@33:     this.iarr = new Float32Array(nayukiCModule.HEAPU8.buffer, this.iptr, n);
Chris@33:     this.tables = nc_precalc_f(n);
Chris@33: 
Chris@33:     this.forward = function(real, imag) {
Chris@33: 	this.rarr.set(real);
Chris@33: 	this.iarr.set(imag);
Chris@33: 	nc_transform_radix2_precalc_f(this.rptr, this.iptr, this.n, this.tables);
Chris@33: 	real.set(this.rarr);
Chris@33: 	imag.set(this.iarr);
Chris@33:     };
Chris@33: 
Chris@33:     this.dispose = function() {
Chris@33: 	nayukiCModule._free(this.rptr);
Chris@33: 	nc_dispose_f(this.tables);
Chris@33:     }
Chris@33: }
Chris@33: