65 lines
1.2 KiB
Objective-C
65 lines
1.2 KiB
Objective-C
//
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// VisualizationController.m
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// CogAudio Framework
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//
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// Created by Christopher Snowhill on 2/12/22.
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//
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#import "VisualizationController.h"
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#import <Accelerate/Accelerate.h>
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#import "fft.h"
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@implementation VisualizationController
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static VisualizationController *_sharedController = nil;
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+ (VisualizationController *)sharedController {
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@synchronized(self) {
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if(!_sharedController) {
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_sharedController = [[VisualizationController alloc] init];
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}
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}
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return _sharedController;
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}
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- (id)init {
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self = [super init];
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if(self) {
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vDSP_vclr(visAudio, 1, 8192);
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}
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return self;
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}
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- (void)dealloc {
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fft_free();
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}
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- (void)postSampleRate:(double)sampleRate {
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@synchronized(self) {
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self->sampleRate = sampleRate;
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}
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}
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- (void)postVisPCM:(const float *)inPCM {
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@synchronized(self) {
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cblas_scopy(8192 - 512, visAudio + 512, 1, visAudio, 1);
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cblas_scopy(512, inPCM, 1, visAudio + 8192 - 512, 1);
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}
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}
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- (double)readSampleRate {
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@synchronized(self) {
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return sampleRate;
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}
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}
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- (void)copyVisPCM:(float *)outPCM visFFT:(float *)outFFT {
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@synchronized(self) {
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cblas_scopy(8192, visAudio, 1, outPCM, 1);
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fft_calculate(visAudio, outFFT, 4096);
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}
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}
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@end
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