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125 lines
3.2 KiB
Plaintext
125 lines
3.2 KiB
Plaintext
//
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// Atari2600.m
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// CLK
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//
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// Created by Thomas Harte on 14/07/2015.
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// Copyright © 2015 Thomas Harte. All rights reserved.
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//
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#import "CSAtari2600.h"
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#include "Atari2600.hpp"
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#import "CSMachine+Subclassing.h"
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@interface CSAtari2600 ()
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- (void)crt:(Outputs::CRT::CRT *)crt didEndBatchOfFrames:(unsigned int)numberOfFrames withUnexpectedVerticalSyncs:(unsigned int)numberOfUnexpectedSyncs;
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@end
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struct CRTDelegate: public Outputs::CRT::Delegate {
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__weak CSAtari2600 *atari2600;
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void crt_did_end_batch_of_frames(Outputs::CRT::CRT *crt, unsigned int number_of_frames, unsigned int number_of_unexpected_vertical_syncs) {
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[atari2600 crt:crt didEndBatchOfFrames:number_of_frames withUnexpectedVerticalSyncs:number_of_unexpected_vertical_syncs];
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}
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};
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@implementation CSAtari2600 {
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Atari2600::Machine _atari2600;
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CRTDelegate _crtDelegate;
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int _frameCount;
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int _hitCount;
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BOOL _didDecideRegion;
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int _batchesReceived;
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}
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- (void)crt:(Outputs::CRT::CRT *)crt didEndBatchOfFrames:(unsigned int)numberOfFrames withUnexpectedVerticalSyncs:(unsigned int)numberOfUnexpectedSyncs {
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if(!_didDecideRegion)
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{
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_batchesReceived++;
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if(_batchesReceived == 2)
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{
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_didDecideRegion = YES;
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if(numberOfUnexpectedSyncs >= numberOfFrames >> 1)
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{
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[self.view performWithGLContext:^{
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_atari2600.switch_region();
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}];
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}
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}
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}
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}
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- (void)setROM:(NSData *)rom {
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@synchronized(self) {
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_atari2600.set_rom(rom.length, (const uint8_t *)rom.bytes);
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}
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}
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- (void)setState:(BOOL)state forDigitalInput:(Atari2600DigitalInput)digitalInput {
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@synchronized(self) {
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_atari2600.set_digital_input(digitalInput, state ? true : false);
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}
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}
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- (void)setResetLineEnabled:(BOOL)enabled {
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@synchronized(self) {
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_atari2600.set_reset_line(enabled ? true : false);
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}
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}
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- (void)setupOutputWithAspectRatio:(float)aspectRatio {
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@synchronized(self) {
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[super setupOutputWithAspectRatio:aspectRatio];
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_atari2600.get_crt()->set_delegate(&_crtDelegate);
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_crtDelegate.atari2600 = self;
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}
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}
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- (CRTMachine::Machine * const)machine {
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return &_atari2600;
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}
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#pragma mark - Switches
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- (void)setColourButton:(BOOL)colourButton {
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_colourButton = colourButton;
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@synchronized(self) {
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_atari2600.set_switch_is_enabled(Atari2600SwitchColour, colourButton);
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}
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}
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- (void)setLeftPlayerDifficultyButton:(BOOL)leftPlayerDifficultyButton {
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_leftPlayerDifficultyButton = leftPlayerDifficultyButton;
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@synchronized(self) {
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_atari2600.set_switch_is_enabled(Atari2600SwitchLeftPlayerDifficulty, leftPlayerDifficultyButton);
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}
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}
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- (void)setRightPlayerDifficultyButton:(BOOL)rightPlayerDifficultyButton {
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_rightPlayerDifficultyButton = rightPlayerDifficultyButton;
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@synchronized(self) {
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_atari2600.set_switch_is_enabled(Atari2600SwitchRightPlayerDifficulty, rightPlayerDifficultyButton);
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}
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}
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- (void)toggleSwitch:(Atari2600Switch)toggleSwitch {
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@synchronized(self) {
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_atari2600.set_switch_is_enabled(toggleSwitch, true);
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}
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
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@synchronized(self) {
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_atari2600.set_switch_is_enabled(toggleSwitch, false);
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}
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});
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}
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- (void)pressResetButton {
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[self toggleSwitch:Atari2600SwitchReset];
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}
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- (void)pressSelectButton {
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[self toggleSwitch:Atari2600SwitchSelect];
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}
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@end
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