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96 lines
2.4 KiB
Plaintext
96 lines
2.4 KiB
Plaintext
//
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// CSMachine.m
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// Clock Signal
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//
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// Created by Thomas Harte on 04/01/2016.
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// Copyright © 2016 Thomas Harte. All rights reserved.
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//
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#import "CSMachine.h"
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#import "CSMachine+Subclassing.h"
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@interface CSMachine()
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- (void)speaker:(Outputs::Speaker *)speaker didCompleteSamples:(const int16_t *)samples length:(int)length;
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@end
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struct SpeakerDelegate: public Outputs::Speaker::Delegate {
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__weak CSMachine *machine;
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void speaker_did_complete_samples(Outputs::Speaker *speaker, const int16_t *buffer, int buffer_size) {
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[machine speaker:speaker didCompleteSamples:buffer length:buffer_size];
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}
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};
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@implementation CSMachine {
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SpeakerDelegate _speakerDelegate;
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dispatch_queue_t _serialDispatchQueue;
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}
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- (void)speaker:(Outputs::Speaker *)speaker didCompleteSamples:(const int16_t *)samples length:(int)length {
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[self.audioQueue enqueueAudioBuffer:samples numberOfSamples:(unsigned int)length];
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}
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- (instancetype)init {
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self = [super init];
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if(self) {
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_serialDispatchQueue = dispatch_queue_create("Machine queue", DISPATCH_QUEUE_SERIAL);
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_speakerDelegate.machine = self;
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[self setSpeakerDelegate:&_speakerDelegate sampleRate:44100];
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}
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return self;
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}
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- (void)dealloc {
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[_view performWithGLContext:^{
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@synchronized(self) {
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self.machine->close_output();
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}
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}];
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}
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- (BOOL)setSpeakerDelegate:(Outputs::Speaker::Delegate *)delegate sampleRate:(int)sampleRate {
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@synchronized(self) {
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Outputs::Speaker *speaker = self.machine->get_speaker();
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if(speaker)
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{
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speaker->set_output_rate(sampleRate, 256);
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speaker->set_delegate(delegate);
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return YES;
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}
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return NO;
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}
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}
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- (void)runForNumberOfCycles:(int)numberOfCycles {
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@synchronized(self) {
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self.machine->run_for_cycles(numberOfCycles);
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}
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}
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- (void)performSync:(dispatch_block_t)action {
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dispatch_sync(_serialDispatchQueue, action);
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}
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- (void)performAsync:(dispatch_block_t)action {
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dispatch_async(_serialDispatchQueue, action);
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}
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- (void)setView:(CSOpenGLView *)view aspectRatio:(float)aspectRatio {
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_view = view;
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[view performWithGLContext:^{
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[self setupOutputWithAspectRatio:aspectRatio];
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}];
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}
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- (void)setupOutputWithAspectRatio:(float)aspectRatio {
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self.machine->setup_output(aspectRatio);
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}
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- (void)drawViewForPixelSize:(CGSize)pixelSize onlyIfDirty:(BOOL)onlyIfDirty {
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self.machine->get_crt()->draw_frame((unsigned int)pixelSize.width, (unsigned int)pixelSize.height, onlyIfDirty ? true : false);
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}
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@end
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