Chris@8: "use strict";
Chris@8: 
Chris@8: var kissFFTModule = KissFFTModule({});
Chris@8: 
Chris@8: var kiss_fftr_alloc = kissFFTModule.cwrap(
Chris@8:     'kiss_fftr_alloc', 'number', ['number', 'number', 'number', 'number' ]
Chris@8: );
Chris@8: 
Chris@8: var kiss_fftr = kissFFTModule.cwrap(
Chris@8:     'kiss_fftr', 'void', ['number', 'number', 'number' ]
Chris@8: );
Chris@8: 
Chris@8: var kiss_fftri = kissFFTModule.cwrap(
Chris@8:     'kiss_fftri', 'void', ['number', 'number', 'number' ]
Chris@8: );
Chris@8: 
Chris@8: var kiss_fftr_free = kissFFTModule.cwrap(
Chris@8:     'kiss_fftr_free', 'void', ['number']
Chris@8: );
Chris@8: 
Chris@37: var kiss_fft_alloc = kissFFTModule.cwrap(
Chris@37:     'kiss_fft_alloc', 'number', ['number', 'number', 'number', 'number' ]
Chris@37: );
Chris@37: 
Chris@37: var kiss_fft = kissFFTModule.cwrap(
Chris@37:     'kiss_fft', 'void', ['number', 'number', 'number' ]
Chris@37: );
Chris@37: 
Chris@37: var kiss_fft_free = kissFFTModule.cwrap(
Chris@37:     'kiss_fft_free', 'void', ['number']
Chris@37: );
Chris@37: 
Chris@8: function KissFFT(size) {
Chris@19: 
Chris@8:     this.size = size;
Chris@37:     this.fcfg = kiss_fft_alloc(size, false);
Chris@37:     this.icfg = kiss_fft_alloc(size, true);
Chris@40: 
Chris@40:     var samplesize = 8;
Chris@40:     this.inptr = kissFFTModule._malloc(size*samplesize*2 + size*samplesize*2);
Chris@40:     this.outptr = this.inptr + size*samplesize*2;
Chris@37:     
Chris@40:     this.cin = new Float64Array(kissFFTModule.HEAPU8.buffer, this.inptr, size*2);
Chris@40:     this.cout = new Float64Array(kissFFTModule.HEAPU8.buffer, this.outptr, size*2);
Chris@37:     
Chris@37:     this.forward = function(cin) {
Chris@37: 	this.cin.set(cin);
Chris@37: 	kiss_fft(this.fcfg, this.inptr, this.outptr);
Chris@40: 	return new Float64Array(kissFFTModule.HEAPU8.buffer,
Chris@37: 				this.outptr, this.size * 2);
Chris@37:     }
Chris@37:     
Chris@37:     this.inverse = function(cin) {
Chris@37: 	this.cin.set(cpx);
Chris@37: 	kiss_fft(this.icfg, this.inptr, this.outptr);
Chris@40: 	return new Float64Array(kissFFTModule.HEAPU8.buffer,
Chris@37: 				this.outptr, this.size * 2);
Chris@37:     }
Chris@37:     
Chris@37:     this.dispose = function() {
Chris@37: 	kissFFTModule._free(this.inptr);
Chris@37: 	kiss_fft_free(this.fcfg);
Chris@37: 	kiss_fft_free(this.icfg);
Chris@37:     }
Chris@37: }
Chris@37: 
Chris@37: function KissFFTR(size) {
Chris@37: 
Chris@37:     this.size = size;
Chris@8:     this.fcfg = kiss_fftr_alloc(size, false);
Chris@8:     this.icfg = kiss_fftr_alloc(size, true);
Chris@19:     
Chris@40:     var samplesize = 8;
Chris@40:     this.rptr = kissFFTModule._malloc(size*samplesize + (size+2)*samplesize);
Chris@40:     this.cptr = this.rptr + size*samplesize;
Chris@19:     
Chris@40:     this.ri = new Float64Array(kissFFTModule.HEAPU8.buffer, this.rptr, size);
Chris@40:     this.ci = new Float64Array(kissFFTModule.HEAPU8.buffer, this.cptr, size+2);
Chris@19:     
Chris@8:     this.forward = function(real) {
Chris@19: 	this.ri.set(real);
Chris@19: 	kiss_fftr(this.fcfg, this.rptr, this.cptr);
Chris@40: 	return new Float64Array(kissFFTModule.HEAPU8.buffer,
Chris@21: 				this.cptr, this.size + 2);
Chris@8:     }
Chris@19:     
Chris@8:     this.inverse = function(cpx) {
Chris@19: 	this.ci.set(cpx);
Chris@19: 	kiss_fftri(this.icfg, this.cptr, this.rptr);
Chris@40: 	return new Float64Array(kissFFTModule.HEAPU8.buffer,
Chris@21: 				this.rptr, this.size);
Chris@8:     }
Chris@19:     
Chris@19:     this.dispose = function() {
Chris@19: 	kissFFTModule._free(this.rptr);
Chris@8: 	kiss_fftr_free(this.fcfg);
Chris@8: 	kiss_fftr_free(this.icfg);
Chris@8:     }
Chris@8: }
Chris@8: