2022-02-13 07:04:03 +00:00
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//
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// SpectrumView.m
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// Cog
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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 "SpectrumView.h"
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2022-06-09 04:32:52 +00:00
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#import "NSView+Visibility.h"
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2022-05-24 00:21:13 +00:00
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#import <Metal/Metal.h>
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2022-02-13 20:15:27 +00:00
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#import "analyzer.h"
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#define LOWER_BOUND -80
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2022-02-13 09:32:26 +00:00
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2022-05-22 22:26:27 +00:00
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void *kSpectrumViewContext = &kSpectrumViewContext;
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2022-02-13 07:04:03 +00:00
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extern NSString *CogPlaybackDidBeginNotficiation;
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extern NSString *CogPlaybackDidPauseNotficiation;
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extern NSString *CogPlaybackDidResumeNotficiation;
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extern NSString *CogPlaybackDidStopNotficiation;
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2022-02-13 20:15:27 +00:00
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@interface SpectrumView () {
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VisualizationController *visController;
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NSTimer *timer;
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BOOL paused;
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BOOL stopped;
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BOOL isListening;
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2022-05-22 07:03:52 +00:00
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BOOL bandsReset;
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2022-05-23 00:24:35 +00:00
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BOOL cameraControlEnabled;
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2022-06-09 04:32:52 +00:00
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BOOL observersAdded;
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2022-02-13 20:15:27 +00:00
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NSColor *backgroundColor;
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ddb_analyzer_t _analyzer;
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ddb_analyzer_draw_data_t _draw_data;
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2022-05-22 22:50:09 +00:00
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SCNVector3 cameraPosition2d;
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SCNVector3 cameraEulerAngles2d;
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SCNVector3 cameraPosition3d;
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SCNVector3 cameraEulerAngles3d;
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2022-02-13 20:15:27 +00:00
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}
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@end
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2022-02-13 07:04:03 +00:00
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@implementation SpectrumView
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2022-02-13 09:32:26 +00:00
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@synthesize isListening;
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- (id)initWithFrame:(NSRect)frame {
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2022-05-30 07:15:49 +00:00
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id<MTLDevice> device = MTLCreateSystemDefaultDevice();
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2022-06-09 04:32:52 +00:00
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if(1 || !device) return nil;
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2022-05-30 07:15:49 +00:00
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2022-05-22 07:03:52 +00:00
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NSDictionary *sceneOptions = @{
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2022-05-29 01:23:15 +00:00
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SCNPreferredRenderingAPIKey: @(SCNRenderingAPIMetal),
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2022-05-30 07:15:49 +00:00
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SCNPreferredDeviceKey: device,
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2022-05-29 01:23:15 +00:00
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SCNPreferLowPowerDeviceKey: @(NO)
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2022-05-22 07:03:52 +00:00
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};
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self = [super initWithFrame:frame options:sceneOptions];
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2022-02-13 09:32:26 +00:00
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if(self) {
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[self setup];
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}
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return self;
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}
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- (void)updateVisListening {
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2022-06-08 02:01:47 +00:00
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if(self.isListening && (![self visibleInWindow] || paused || stopped)) {
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2022-02-13 09:32:26 +00:00
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[self stopTimer];
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self.isListening = NO;
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2022-06-08 02:01:47 +00:00
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} else if(!self.isListening && ([self visibleInWindow] && !stopped && !paused)) {
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2022-02-13 09:32:26 +00:00
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[self startTimer];
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self.isListening = YES;
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}
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}
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2022-05-22 22:26:27 +00:00
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- (void)observeValueForKeyPath:(NSString *)keyPath
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ofObject:(id)object
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change:(NSDictionary<NSKeyValueChangeKey, id> *)change
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context:(void *)context {
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if(context == kSpectrumViewContext) {
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[self updateControls];
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2022-06-06 15:19:42 +00:00
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} else if([keyPath isEqualToString:@"self.window.visible"]) {
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[self updateVisListening];
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2022-05-22 22:26:27 +00:00
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}
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}
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- (void)updateControls {
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2022-05-23 00:45:51 +00:00
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BOOL projectionMode = cameraControlEnabled ? NO : [[NSUserDefaults standardUserDefaults] boolForKey:@"spectrumProjectionMode"];
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2022-05-22 22:26:27 +00:00
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SCNNode *rootNode = [[self scene] rootNode];
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SCNNode *cameraNode = [rootNode childNodeWithName:@"camera" recursively:NO];
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SCNCamera *camera = [cameraNode camera];
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2022-05-22 22:50:09 +00:00
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if (projectionMode) {
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cameraNode.eulerAngles = cameraEulerAngles2d;
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cameraNode.position = cameraPosition2d;
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camera.usesOrthographicProjection = YES;
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camera.orthographicScale = 0.6;
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} else {
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cameraNode.eulerAngles = cameraEulerAngles3d;
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cameraNode.position = cameraPosition3d;
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camera.usesOrthographicProjection = NO;
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camera.orthographicScale = 1.0;
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}
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2022-05-22 22:26:27 +00:00
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NSValueTransformer *colorToValueTransformer = [NSValueTransformer valueTransformerForName:@"ColorToValueTransformer"];
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NSColor *barColor = [colorToValueTransformer transformedValue:[[NSUserDefaults standardUserDefaults] dataForKey:@"spectrumBarColor"]];
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NSColor *dotColor = [colorToValueTransformer transformedValue:[[NSUserDefaults standardUserDefaults] dataForKey:@"spectrumDotColor"]];
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{
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SCNNode *barNode = [rootNode childNodeWithName:@"cylinder0" recursively:NO];
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SCNGeometry *geometry = [barNode geometry];
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NSArray<SCNMaterial *> *materials = [geometry materials];
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SCNMaterial *material = materials[0];
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material.diffuse.contents = barColor;
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material.emission.contents = barColor;
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}
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{
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SCNNode *dotNode = [rootNode childNodeWithName:@"sphere0" recursively:NO];
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SCNGeometry *geometry = [dotNode geometry];
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NSArray<SCNMaterial *> *materials = [geometry materials];
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SCNMaterial *material = materials[0];
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material.diffuse.contents = dotColor;
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material.emission.contents = dotColor;
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}
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}
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2022-05-23 00:24:35 +00:00
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- (void)enableCameraControl {
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[self setAllowsCameraControl:YES];
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cameraControlEnabled = YES;
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2022-05-23 00:45:51 +00:00
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[self updateControls];
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2022-05-23 00:24:35 +00:00
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}
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2022-02-13 09:32:26 +00:00
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- (void)setup {
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2022-02-13 07:04:03 +00:00
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visController = [NSClassFromString(@"VisualizationController") sharedController];
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timer = nil;
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stopped = YES;
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2022-02-13 09:32:26 +00:00
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paused = NO;
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isListening = NO;
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2022-05-23 00:24:35 +00:00
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cameraControlEnabled = NO;
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2022-02-13 09:32:26 +00:00
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2022-05-22 07:03:52 +00:00
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[self setBackgroundColor:[NSColor clearColor]];
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SCNScene *theScene = [SCNScene sceneNamed:@"Scenes.scnassets/Spectrum.scn"];
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[self setScene:theScene];
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2022-05-22 23:32:57 +00:00
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[self setAntialiasingMode:SCNAntialiasingModeMultisampling8X];
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2022-05-22 22:50:09 +00:00
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SCNNode *rootNode = [[self scene] rootNode];
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SCNNode *cameraNode = [rootNode childNodeWithName:@"camera" recursively:NO];
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cameraPosition2d = SCNVector3Make(0.0, 0.5, 1.0);
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cameraEulerAngles2d = SCNVector3Zero;
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// Save initial camera position from SceneKit file.
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cameraPosition3d = cameraNode.position;
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cameraEulerAngles3d = cameraNode.eulerAngles;
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2022-05-22 22:26:27 +00:00
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[self updateControls];
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2022-05-22 07:03:52 +00:00
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bandsReset = NO;
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[self drawBaseBands];
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//[self colorsDidChange:nil];
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2022-02-13 07:04:03 +00:00
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2022-02-16 07:24:58 +00:00
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BOOL freqMode = [[NSUserDefaults standardUserDefaults] boolForKey:@"spectrumFreqMode"];
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2022-02-13 20:15:27 +00:00
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ddb_analyzer_init(&_analyzer);
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_analyzer.db_lower_bound = LOWER_BOUND;
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2022-02-16 07:24:58 +00:00
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_analyzer.min_freq = 10;
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_analyzer.max_freq = 22000;
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2022-02-13 20:15:27 +00:00
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_analyzer.peak_hold = 10;
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2022-05-29 01:31:09 +00:00
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_analyzer.view_width = 1000;
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2022-02-13 20:15:27 +00:00
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_analyzer.fractional_bars = 1;
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_analyzer.octave_bars_step = 2;
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_analyzer.max_of_stereo_data = 1;
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2022-02-16 07:24:58 +00:00
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_analyzer.freq_is_log = 0;
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_analyzer.mode = freqMode ? DDB_ANALYZER_MODE_FREQUENCIES : DDB_ANALYZER_MODE_OCTAVE_NOTE_BANDS;
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2022-02-13 07:04:03 +00:00
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2022-06-09 04:32:52 +00:00
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[self addObservers];
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2022-05-31 04:38:29 +00:00
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}
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2022-06-09 04:32:52 +00:00
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- (void)addObservers {
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if(!observersAdded) {
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2022-05-31 04:38:29 +00:00
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[[NSUserDefaultsController sharedUserDefaultsController] addObserver:self forKeyPath:@"values.spectrumProjectionMode" options:0 context:kSpectrumViewContext];
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[[NSUserDefaultsController sharedUserDefaultsController] addObserver:self forKeyPath:@"values.spectrumBarColor" options:0 context:kSpectrumViewContext];
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[[NSUserDefaultsController sharedUserDefaultsController] addObserver:self forKeyPath:@"values.spectrumDotColor" options:0 context:kSpectrumViewContext];
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2022-06-06 15:19:42 +00:00
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[self addObserver:self forKeyPath:@"self.window.visible" options:0 context:nil];
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2022-05-31 04:38:29 +00:00
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(playbackDidBegin:)
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name:CogPlaybackDidBeginNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(playbackDidPause:)
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name:CogPlaybackDidPauseNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(playbackDidResume:)
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name:CogPlaybackDidResumeNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] addObserver:self
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selector:@selector(playbackDidStop:)
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name:CogPlaybackDidStopNotficiation
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object:nil];
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2022-06-09 04:32:52 +00:00
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observersAdded = YES;
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2022-05-31 04:38:29 +00:00
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}
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2022-02-13 07:04:03 +00:00
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}
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2022-02-13 09:32:26 +00:00
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- (void)dealloc {
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2022-02-13 20:15:27 +00:00
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ddb_analyzer_dealloc(&_analyzer);
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ddb_analyzer_draw_data_dealloc(&_draw_data);
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2022-05-31 04:38:29 +00:00
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[self removeObservers];
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}
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- (void)removeObservers {
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2022-06-09 04:32:52 +00:00
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if(observersAdded) {
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2022-05-31 04:38:29 +00:00
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[[NSUserDefaultsController sharedUserDefaultsController] removeObserver:self forKeyPath:@"values.spectrumProjectionMode"];
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[[NSUserDefaultsController sharedUserDefaultsController] removeObserver:self forKeyPath:@"values.spectrumBarColor"];
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[[NSUserDefaultsController sharedUserDefaultsController] removeObserver:self forKeyPath:@"values.spectrumDotColor"];
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2022-06-06 15:19:42 +00:00
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[self removeObserver:self forKeyPath:@"self.window.visible" context:nil];
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2022-05-31 04:38:29 +00:00
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:CogPlaybackDidBeginNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:CogPlaybackDidPauseNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:CogPlaybackDidResumeNotficiation
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object:nil];
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[[NSNotificationCenter defaultCenter] removeObserver:self
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name:CogPlaybackDidStopNotficiation
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object:nil];
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2022-06-09 04:32:52 +00:00
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observersAdded = NO;
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2022-05-31 04:38:29 +00:00
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}
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2022-02-13 09:32:26 +00:00
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}
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2022-02-13 07:04:03 +00:00
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2022-02-13 09:32:26 +00:00
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- (void)repaint {
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2022-05-22 07:03:52 +00:00
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[self updateVisListening];
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if(stopped) {
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[self drawBaseBands];
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return;
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}
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float visAudio[4096], visFFT[2048];
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[self->visController copyVisPCM:&visAudio[0] visFFT:&visFFT[0]];
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ddb_analyzer_process(&_analyzer, [self->visController readSampleRate] / 2.0, 1, visFFT, 2048);
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ddb_analyzer_tick(&_analyzer);
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ddb_analyzer_get_draw_data(&_analyzer, 11.0, 1.0, &_draw_data);
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[self drawAnalyzer];
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2022-02-13 07:04:03 +00:00
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}
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- (void)startTimer {
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[self stopTimer];
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2022-02-13 09:32:26 +00:00
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timer = [NSTimer timerWithTimeInterval:1.0 / 60.0
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2022-02-13 07:04:03 +00:00
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target:self
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selector:@selector(timerRun:)
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userInfo:nil
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repeats:YES];
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[[NSRunLoop currentRunLoop] addTimer:timer forMode:NSRunLoopCommonModes];
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}
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- (void)stopTimer {
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[timer invalidate];
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timer = nil;
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}
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- (void)timerRun:(NSTimer *)timer {
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[self repaint];
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}
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2022-05-23 00:24:35 +00:00
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- (void)startPlayback {
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[self playbackDidBegin:nil];
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}
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2022-02-13 07:04:03 +00:00
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- (void)playbackDidBegin:(NSNotification *)notification {
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stopped = NO;
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2022-02-13 09:32:26 +00:00
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paused = NO;
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[self updateVisListening];
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2022-02-13 07:04:03 +00:00
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}
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- (void)playbackDidPause:(NSNotification *)notification {
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stopped = NO;
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2022-02-13 09:32:26 +00:00
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paused = YES;
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[self updateVisListening];
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2022-02-13 07:04:03 +00:00
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}
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- (void)playbackDidResume:(NSNotification *)notification {
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stopped = NO;
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2022-02-13 09:32:26 +00:00
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paused = NO;
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[self updateVisListening];
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2022-02-13 07:04:03 +00:00
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}
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- (void)playbackDidStop:(NSNotification *)notification {
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stopped = YES;
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2022-02-13 09:32:26 +00:00
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paused = NO;
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[self updateVisListening];
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2022-02-13 07:04:03 +00:00
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|
[self repaint];
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|
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|
}
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2022-05-22 07:03:52 +00:00
|
|
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- (void)drawBaseBands {
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if(bandsReset) return;
|
2022-02-13 20:15:27 +00:00
|
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|
|
2022-05-22 07:03:52 +00:00
|
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SCNScene *scene = [self scene];
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|
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SCNNode *rootNode = [scene rootNode];
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|
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NSArray<SCNNode *> *nodes = [rootNode childNodes];
|
2022-02-13 20:15:27 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
for(int i = 0; i < 11; ++i) {
|
|
|
|
SCNNode *node = nodes[i + 1];
|
|
|
|
SCNNode *dotNode = nodes[i + 1 + 11];
|
|
|
|
SCNVector3 position = node.position;
|
|
|
|
position.y = 0.0;
|
|
|
|
node.scale = SCNVector3Make(1.0, 0.0, 1.0);
|
|
|
|
node.position = position;
|
2022-02-13 20:15:27 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
position = dotNode.position;
|
2022-05-23 00:25:21 +00:00
|
|
|
position.y = 0.072;
|
2022-05-22 07:03:52 +00:00
|
|
|
dotNode.position = position;
|
2022-02-13 20:15:27 +00:00
|
|
|
}
|
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
bandsReset = YES;
|
2022-02-13 20:15:27 +00:00
|
|
|
}
|
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
- (void)drawAnalyzerOctaveBands {
|
|
|
|
const int maxBars = (int)(ceilf((float)(_draw_data.bar_count) / 11.0));
|
|
|
|
const int barStep = (int)(floorf((float)(_draw_data.bar_count) / 11.0));
|
2022-02-13 09:32:26 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
ddb_analyzer_draw_bar_t *bar = _draw_data.bars;
|
2022-02-13 09:32:26 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
SCNScene *scene = [self scene];
|
|
|
|
SCNNode *rootNode = [scene rootNode];
|
|
|
|
NSArray<SCNNode *> *nodes = [rootNode childNodes];
|
|
|
|
|
|
|
|
for(int i = 0; i < 11; ++i) {
|
|
|
|
float maxValue = 0.0;
|
|
|
|
float maxMax = 0.0;
|
|
|
|
for(int j = 0; j < maxBars; ++j) {
|
|
|
|
const int barBase = i * barStep;
|
|
|
|
const int barIndex = barBase + j;
|
|
|
|
if(barIndex < _draw_data.bar_count) {
|
|
|
|
if(bar[barIndex].bar_height > maxValue) {
|
|
|
|
maxValue = bar[barIndex].bar_height;
|
|
|
|
}
|
|
|
|
if(bar[barIndex].peak_ypos > maxMax) {
|
|
|
|
maxMax = bar[barIndex].peak_ypos;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
SCNNode *node = nodes[i + 1];
|
|
|
|
SCNNode *dotNode = nodes[i + 1 + 11];
|
|
|
|
SCNVector3 position = node.position;
|
|
|
|
position.y = maxValue * 0.5;
|
2022-05-29 01:23:15 +00:00
|
|
|
node.scale = SCNVector3Make(1.0, maxValue, 1.0);
|
2022-05-22 07:03:52 +00:00
|
|
|
node.position = position;
|
|
|
|
|
|
|
|
position = dotNode.position;
|
2022-05-23 00:25:21 +00:00
|
|
|
position.y = maxMax + 0.072;
|
2022-05-22 07:03:52 +00:00
|
|
|
dotNode.position = position;
|
|
|
|
}
|
2022-02-13 09:32:26 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
bandsReset = NO;
|
|
|
|
}
|
2022-02-13 09:32:26 +00:00
|
|
|
|
2022-05-22 07:03:52 +00:00
|
|
|
- (void)drawAnalyzer {
|
|
|
|
[self drawAnalyzerOctaveBands];
|
2022-02-13 07:04:03 +00:00
|
|
|
}
|
|
|
|
|
2022-02-16 07:24:58 +00:00
|
|
|
- (void)mouseDown:(NSEvent *)event {
|
2022-05-23 00:24:35 +00:00
|
|
|
if(cameraControlEnabled) return;
|
|
|
|
|
2022-02-16 07:24:58 +00:00
|
|
|
BOOL freqMode = ![[NSUserDefaults standardUserDefaults] boolForKey:@"spectrumFreqMode"];
|
|
|
|
[[NSUserDefaults standardUserDefaults] setBool:freqMode forKey:@"spectrumFreqMode"];
|
|
|
|
|
|
|
|
_analyzer.mode = freqMode ? DDB_ANALYZER_MODE_FREQUENCIES : DDB_ANALYZER_MODE_OCTAVE_NOTE_BANDS;
|
|
|
|
_analyzer.mode_did_change = 1;
|
|
|
|
|
|
|
|
[self repaint];
|
|
|
|
}
|
|
|
|
|
2022-02-13 07:04:03 +00:00
|
|
|
@end
|