SameBoy/iOS/GBViewController.m

1877 lines
76 KiB
Objective-C

#import "GBViewController.h"
#import "GBHorizontalLayout.h"
#import "GBVerticalLayout.h"
#import "GBViewMetal.h"
#import "GBAudioClient.h"
#import "GBROMManager.h"
#import "GBLibraryViewController.h"
#import "GBBackgroundView.h"
#import "GBHapticManager.h"
#import "GBMenuViewController.h"
#import "GBOptionViewController.h"
#import "GBAboutController.h"
#import "GBSettingsViewController.h"
#import "GBPalettePicker.h"
#import "GBStatesViewController.h"
#import "GBCheckableAlertController.h"
#import "GBPrinterFeedController.h"
#import "GBCheatsController.h"
#import "GCExtendedGamepad+AllElements.h"
#import "GBZipReader.h"
#import <sys/stat.h>
#import <CoreMotion/CoreMotion.h>
#import <dlfcn.h>
@implementation GBViewController
{
GB_gameboy_t _gb;
GBView *_gbView;
volatile bool _running;
volatile bool _stopping;
bool _rewind;
bool _rewindOver;
bool _romLoaded;
bool _swappingROM;
bool _skipAutoLoad;
UIInterfaceOrientation _orientation;
GBHorizontalLayout *_horizontalLayoutLeft;
GBHorizontalLayout *_horizontalLayoutRight;
GBVerticalLayout *_verticalLayout;
GBBackgroundView *_backgroundView;
NSCondition *_audioLock;
GB_sample_t *_audioBuffer;
size_t _audioBufferSize;
size_t _audioBufferPosition;
size_t _audioBufferNeeded;
GBAudioClient *_audioClient;
NSMutableSet *_defaultsObservers;
GB_palette_t _palette;
CMMotionManager *_motionManager;
CVImageBufferRef _cameraImage;
AVCaptureSession *_cameraSession;
AVCaptureConnection *_cameraConnection;
AVCaptureVideoDataOutput *_cameraOutput;
bool _cameraNeedsUpdate;
NSTimer *_disableCameraTimer;
AVCaptureDevicePosition _cameraPosition;
UIButton *_cameraPositionButton;
UIButton *_changeCameraButton;
AVCaptureDevice *_frontCaptureDevice;
AVCaptureDevice *_backCaptureDevice;
NSMutableArray<NSNumber *> *_zoomLevels;
unsigned _currentZoomIndex;
__weak GCController *_lastController;
dispatch_queue_t _cameraQueue;
bool _runModeFromController;
UIWindow *_mirrorWindow;
GBView *_mirrorView;
bool _printerConnected;
UIButton *_printerButton;
UIActivityIndicatorView *_printerSpinner;
NSMutableData *_currentPrinterImageData;
NSString *_lastSavedROM;
NSDate *_saveDate;
}
static void loadBootROM(GB_gameboy_t *gb, GB_boot_rom_t type)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self loadBootROM:type];
}
static void vblank(GB_gameboy_t *gb, GB_vblank_type_t type)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self vblankWithType:type];
}
static void printImage(GB_gameboy_t *gb, uint32_t *image, uint8_t height,
uint8_t top_margin, uint8_t bottom_margin, uint8_t exposure)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self printImage:image height:height topMargin:top_margin bottomMargin:bottom_margin exposure:exposure];
}
static void printDone(GB_gameboy_t *gb)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self printDone];
}
static void consoleLog(GB_gameboy_t *gb, const char *string, GB_log_attributes_t attributes)
{
static NSString *buffer = @"";
buffer = [buffer stringByAppendingString:@(string)];
if ([buffer containsString:@"\n"]) {
NSLog(@"%@", buffer);
buffer = @"";
}
}
static uint32_t rgbEncode(GB_gameboy_t *gb, uint8_t r, uint8_t g, uint8_t b)
{
return (r << 0) | (g << 8) | (b << 16) | 0xFF000000;
}
static void audioCallback(GB_gameboy_t *gb, GB_sample_t *sample)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self gotNewSample:sample];
}
static void cameraRequestUpdate(GB_gameboy_t *gb)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self cameraRequestUpdate];
}
static uint8_t cameraGetPixel(GB_gameboy_t *gb, uint8_t x, uint8_t y)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
return [self cameraGetPixelAtX:x andY:y];
}
static void rumbleCallback(GB_gameboy_t *gb, double amp)
{
GBViewController *self = (__bridge GBViewController *)GB_get_user_data(gb);
[self rumbleChanged:amp];
}
- (void)initGameBoy
{
GB_gameboy_t *gb = &_gb;
GB_init(gb, [[NSUserDefaults standardUserDefaults] integerForKey:@"GBCGBModel"]);
GB_set_user_data(gb, (__bridge void *)(self));
GB_set_boot_rom_load_callback(gb, (GB_boot_rom_load_callback_t)loadBootROM);
GB_set_vblank_callback(gb, (GB_vblank_callback_t) vblank);
GB_set_log_callback(gb, (GB_log_callback_t) consoleLog);
GB_set_camera_get_pixel_callback(gb, cameraGetPixel);
GB_set_camera_update_request_callback(gb, cameraRequestUpdate);
[self addDefaultObserver:^(id newValue) {
GB_set_color_correction_mode(gb, (GB_color_correction_mode_t)[newValue integerValue]);
} forKey:@"GBColorCorrection"];
[self addDefaultObserver:^(id newValue) {
GB_set_light_temperature(gb, [newValue doubleValue]);
} forKey:@"GBLightTemperature"];
GB_set_border_mode(gb, GB_BORDER_NEVER);
__weak typeof(self) weakSelf = self;
[self addDefaultObserver:^(id newValue) {
[weakSelf updatePalette];
} forKey:@"GBCurrentTheme"];
GB_set_rgb_encode_callback(gb, rgbEncode);
[self addDefaultObserver:^(id newValue) {
GB_set_highpass_filter_mode(gb, (GB_highpass_mode_t)[newValue integerValue]);
} forKey:@"GBHighpassFilter"];
[self addDefaultObserver:^(id newValue) {
GB_set_rtc_mode(gb, [newValue integerValue]);
} forKey:@"GBRTCMode"];
GB_apu_set_sample_callback(gb, audioCallback);
GB_set_rumble_callback(gb, rumbleCallback);
[self addDefaultObserver:^(id newValue) {
GB_set_rumble_mode(gb, [newValue integerValue]);
} forKey:@"GBRumbleMode"];
[self addDefaultObserver:^(id newValue) {
GB_set_interference_volume(gb, [newValue doubleValue]);
} forKey:@"GBInterferenceVolume"];
[self addDefaultObserver:^(id newValue) {
GB_set_rewind_length(gb, [newValue unsignedIntValue]);
} forKey:@"GBRewindLength"];
[self addDefaultObserver:^(id newValue) {
[[AVAudioSession sharedInstance] setCategory:[newValue isEqual:@"on"]? AVAudioSessionCategoryPlayback : AVAudioSessionCategorySoloAmbient
mode:AVAudioSessionModeDefault
routeSharingPolicy:AVAudioSessionRouteSharingPolicyDefault
options:0
error:nil];
} forKey:@"GBAudioMode"];
}
- (void)addDefaultObserver:(void(^)(id newValue))block forKey:(NSString *)key
{
if (!_defaultsObservers) {
_defaultsObservers = [NSMutableSet set];
}
block = [block copy];
[_defaultsObservers addObject:block];
[[NSUserDefaults standardUserDefaults] addObserver:self
forKeyPath:key
options:NSKeyValueObservingOptionNew
context:(void *)block];
block([[NSUserDefaults standardUserDefaults] objectForKey:key]);
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context
{
((__bridge void(^)(id))context)(change[NSKeyValueChangeNewKey]);
}
- (NSArray<NSNumber *> *)zoomFactorsForDevice:(AVCaptureDevice *)device
{
if (@available(iOS 13.0, *)) {
return device.virtualDeviceSwitchOverVideoZoomFactors;
}
double factor = device.dualCameraSwitchOverVideoZoomFactor;
if (factor == 1.0) {
return @[];
}
return @[@(factor)];
}
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
_window = [[UIWindow alloc] init];
_window.rootViewController = self;
[_window makeKeyAndVisible];
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-retain-cycles"
[self addDefaultObserver:^(id newValue) {
GBTheme *theme = [GBSettingsViewController themeNamed:newValue];
_horizontalLayoutLeft = [[GBHorizontalLayout alloc] initWithTheme:theme cutoutOnRight:false];
_horizontalLayoutRight = _horizontalLayoutLeft.cutout?
[[GBHorizontalLayout alloc] initWithTheme:theme cutoutOnRight:true] :
_horizontalLayoutLeft;
_verticalLayout = [[GBVerticalLayout alloc] initWithTheme:theme];
_printerSpinner.color = theme.buttonColor;
[self willRotateToInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation
duration:0];
[_backgroundView reloadThemeImages];
[self setNeedsStatusBarAppearanceUpdate];
} forKey:@"GBInterfaceTheme"];
#pragma clang diagnostic pop
_backgroundView = [[GBBackgroundView alloc] initWithLayout:_verticalLayout];
[_window addSubview:_backgroundView];
self.view = _backgroundView;
[self initGameBoy];
_gbView = _backgroundView.gbView;
_gbView.hidden = true;
_gbView.gb = &_gb;
[_gbView screenSizeChanged];
[self addDefaultObserver:^(id newValue) {
[[NSNotificationCenter defaultCenter] postNotificationName:@"GBFilterChanged" object:nil];
} forKey:@"GBFilter"];
__weak GBView *gbview = _gbView;
[self addDefaultObserver:^(id newValue) {
gbview.frameBlendingMode = [newValue integerValue];
} forKey:@"GBFrameBlendingMode"];
__weak GBBackgroundView *backgroundView = _backgroundView;
[self addDefaultObserver:^(id newValue) {
backgroundView.usesSwipePad = [newValue boolValue];
} forKey:@"GBSwipeDpad"];
[self willRotateToInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation
duration:0];
_audioLock = [[NSCondition alloc] init];
[[NSNotificationCenter defaultCenter] addObserverForName:@"GBROMChanged"
object:nil
queue:nil
usingBlock:^(NSNotification *note) {
_swappingROM = true;
[self stop];
[self start];
}];
_motionManager = [[CMMotionManager alloc] init];
_cameraPosition = AVCaptureDevicePositionBack;
// Back camera setup
NSArray *deviceTypes = @[AVCaptureDeviceTypeBuiltInWideAngleCamera,
AVCaptureDeviceTypeBuiltInTelephotoCamera,
AVCaptureDeviceTypeBuiltInDualCamera];
if (@available(iOS 13.0, *)) {
// AVCaptureDeviceTypeBuiltInUltraWideCamera is only available in iOS 13+
deviceTypes = @[AVCaptureDeviceTypeBuiltInWideAngleCamera,
AVCaptureDeviceTypeBuiltInUltraWideCamera,
AVCaptureDeviceTypeBuiltInTelephotoCamera,
AVCaptureDeviceTypeBuiltInTripleCamera,
AVCaptureDeviceTypeBuiltInDualWideCamera,
AVCaptureDeviceTypeBuiltInDualCamera];
}
// Use a discovery session to gather the capture devices (all back cameras as well as the front camera)
AVCaptureDeviceDiscoverySession *cameraDiscoverySession = [AVCaptureDeviceDiscoverySession discoverySessionWithDeviceTypes:deviceTypes
mediaType:AVMediaTypeVideo
position:AVCaptureDevicePositionUnspecified];
for (AVCaptureDevice *device in cameraDiscoverySession.devices) {
if ([device position] == AVCaptureDevicePositionBack) {
if (!_backCaptureDevice ||
[self zoomFactorsForDevice:_backCaptureDevice].count < [self zoomFactorsForDevice:device].count) {
_backCaptureDevice = device;
}
}
else if ([device position] == AVCaptureDevicePositionFront) {
_frontCaptureDevice = device;
}
}
_zoomLevels = [self zoomFactorsForDevice:_backCaptureDevice].mutableCopy;
[_zoomLevels insertObject:@1 atIndex:0];
if (_zoomLevels.count == 3 && _zoomLevels[2].doubleValue > 5.5 && _zoomLevels[1].doubleValue < 3.5) {
[_zoomLevels insertObject:@4 atIndex:2];
}
_cameraPositionButton = [[UIButton alloc] init];
[self didRotateFromInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation];
if (@available(iOS 13.0, *)) {
[_cameraPositionButton setImage:[UIImage systemImageNamed:@"camera.rotate"
withConfiguration:[UIImageSymbolConfiguration configurationWithScale:UIImageSymbolScaleLarge]]
forState:UIControlStateNormal];
_cameraPositionButton.backgroundColor = [UIColor systemBackgroundColor];
// Configure the change camera button stacked on top of the camera position button
_changeCameraButton = [[UIButton alloc] init];
[_changeCameraButton setImage:[UIImage systemImageNamed:@"camera.aperture"
withConfiguration:[UIImageSymbolConfiguration configurationWithScale:UIImageSymbolScaleLarge]]
forState:UIControlStateNormal];
_changeCameraButton.backgroundColor = [UIColor systemBackgroundColor];
_changeCameraButton.layer.cornerRadius = 6;
_changeCameraButton.alpha = 0;
[_changeCameraButton addTarget:self
action:@selector(changeCamera)
forControlEvents:UIControlEventTouchUpInside];
// Only show the change camera button if we have more than one back camera to swap between.
if (_zoomLevels.count > 1) {
[_backgroundView addSubview:_changeCameraButton];
}
}
else {
UIImage *rotateImage = [[UIImage imageNamed:@"CameraRotateTemplate"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[_cameraPositionButton setImage:rotateImage
forState:UIControlStateNormal];
_cameraPositionButton.backgroundColor = [UIColor whiteColor];
}
_cameraPositionButton.layer.cornerRadius = 6;
_cameraPositionButton.alpha = 0;
[_cameraPositionButton addTarget:self
action:@selector(rotateCamera)
forControlEvents:UIControlEventTouchUpInside];
[_backgroundView addSubview:_cameraPositionButton];
_cameraQueue = dispatch_queue_create("SameBoy Camera Queue", NULL);
[UNUserNotificationCenter currentNotificationCenter].delegate = self;
[self verifyEntitlements];
[self setControllerHandlers];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(setControllerHandlers)
name:GCControllerDidConnectNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(controllerDisconnected:)
name:GCControllerDidDisconnectNotification
object:nil];
for (NSString *name in @[UIScreenDidConnectNotification,
UIScreenDidDisconnectNotification,
UIScreenModeDidChangeNotification]) {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(updateMirrorWindow)
name:name
object:nil];
}
_printerButton = [[UIButton alloc] init];
_printerSpinner = [[UIActivityIndicatorView alloc] init];
_printerSpinner.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhite;
_printerSpinner.color = _verticalLayout.theme.buttonColor;
[self didRotateFromInterfaceOrientation:[UIApplication sharedApplication].statusBarOrientation];
if (@available(iOS 13.0, *)) {
[_printerButton setImage:[UIImage systemImageNamed:@"printer"
withConfiguration:[UIImageSymbolConfiguration configurationWithScale:UIImageSymbolScaleLarge]]
forState:UIControlStateNormal];
_printerButton.backgroundColor = [UIColor systemBackgroundColor];
}
else {
UIImage *rotateImage = [[UIImage imageNamed:@"PrinterTemplate"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
[_printerButton setImage:rotateImage
forState:UIControlStateNormal];
_printerButton.backgroundColor = [UIColor whiteColor];
}
_printerButton.layer.cornerRadius = 6;
_printerButton.alpha = 0;
[_printerButton addTarget:self
action:@selector(showPrinterFeed)
forControlEvents:UIControlEventTouchUpInside];
[_backgroundView addSubview:_printerButton];
[_backgroundView addSubview:_printerSpinner];
[self updateMirrorWindow];
return true;
}
- (void)updateMirrorWindow
{
if ([UIScreen screens].count == 1) {
_mirrorWindow = nil;
_mirrorView = nil;
return;
}
if (_mirrorWindow && ![[UIScreen screens] containsObject:_mirrorWindow.screen]) {
_mirrorWindow = nil;
_mirrorView = nil;
}
for (UIScreen *screen in [UIScreen screens]) {
if (screen == UIScreen.mainScreen) continue;
CGRect rect = screen.bounds;
rect.size.height = floor(rect.size.height / 144) * 144;
rect.size.width = rect.size.height / 144 * 160;
rect.origin.x = (screen.bounds.size.width - rect.size.width) / 2;
rect.origin.y = (screen.bounds.size.height - rect.size.height) / 2;
_mirrorWindow = [[UIWindow alloc] initWithFrame:screen.bounds];
_mirrorWindow.screen = screen;
_mirrorView = [_gbView mirroredView];
_mirrorView.frame = rect;
_mirrorWindow.backgroundColor = [UIColor blackColor];
[_mirrorWindow addSubview:_mirrorView];
[_mirrorWindow setHidden:false];
break;
}
}
- (void)controllerDisconnected:(NSNotification *)notification
{
if (notification.object == _lastController) {
_backgroundView.fullScreenMode = false;
}
}
- (void)setControllerHandlers
{
for (GCController *controller in [GCController controllers]) {
__weak GCController *weakController = controller;
if (controller.extendedGamepad) {
[[controller.extendedGamepad elementsDictionary] enumerateKeysAndObjectsUsingBlock:^(NSNumber *usage, GCControllerElement *element, BOOL *stop) {
if ([element isKindOfClass:[GCControllerButtonInput class]]) {
[(GCControllerButtonInput *)element setValueChangedHandler:^(GCControllerButtonInput *button, float value, BOOL pressed) {
[self controller:weakController buttonChanged:button usage:usage.unsignedIntValue];
}];
}
else if ([element isKindOfClass:[GCControllerDirectionPad class]]) {
[(GCControllerDirectionPad *)element setValueChangedHandler:^(GCControllerDirectionPad *dpad, float xValue, float yValue) {
[self controller:weakController axisChanged:dpad usage:usage.unsignedIntValue];
}];
}
}];
if (controller.motion) {
[controller.motion setValueChangedHandler:^(GCMotion *motion) {
[self controller:weakController motionChanged:motion];
}];
}
}
}
}
- (void)updateLastController:(GCController *)controller
{
if (_lastController == controller) return;
_lastController = controller;
[GBHapticManager sharedManager].controller = controller;
}
- (void)controller:(GCController *)controller buttonChanged:(GCControllerButtonInput *)button usage:(GBControllerUsage)usage
{
[self updateLastController:controller];
if (_running && button.value > 0.25 &&
[[NSUserDefaults standardUserDefaults] boolForKey:@"GBControllersHideInterface"]) {
_backgroundView.fullScreenMode = true;
}
GBButton gbButton = [GBSettingsViewController controller:controller convertUsageToButton:usage];
static const double analogThreshold = 0.0625;
switch (gbButton) {
case GBRight:
case GBLeft:
case GBUp:
case GBDown:
GB_set_use_faux_analog_inputs(&_gb, 0, false);
case GBA:
case GBB:
case GBSelect:
case GBStart:
GB_set_key_state(&_gb, (GB_key_t)gbButton, button.value > 0.25);
break;
case GBTurbo:
if (button.value > analogThreshold) {
[self setRunMode:GBRunModeTurbo ignoreDynamicSpeed:!button.isAnalog];
if (button.isAnalog && [[NSUserDefaults standardUserDefaults] boolForKey:@"GBDynamicSpeed"]) {
GB_set_clock_multiplier(&_gb, (button.value - analogThreshold) / (1 - analogThreshold) * 3 + 1);
}
_runModeFromController = true;
[_backgroundView fadeOverlayOut];
}
else {
if (self.runMode == GBRunModeTurbo && _runModeFromController) {
[self setRunMode:GBRunModeNormal];
_runModeFromController = false;
}
}
break;
case GBRewind:
if (button.value > analogThreshold) {
[self setRunMode:GBRunModeRewind ignoreDynamicSpeed:!button.isAnalog];
if (button.isAnalog && [[NSUserDefaults standardUserDefaults] boolForKey:@"GBDynamicSpeed"]) {
GB_set_clock_multiplier(&_gb, (button.value - analogThreshold) / (1 - analogThreshold) * 4);
}
_runModeFromController = true;
[_backgroundView fadeOverlayOut];
}
else {
if (self.runMode == GBRunModeRewind && _runModeFromController) {
[self setRunMode:GBRunModeNormal];
_runModeFromController = false;
}
}
break;
case GBUnderclock:
if (button.value > analogThreshold) {
[self setRunMode:GBRunModeUnderclock ignoreDynamicSpeed:!button.isAnalog];
if (button.isAnalog && [[NSUserDefaults standardUserDefaults] boolForKey:@"GBDynamicSpeed"]) {
GB_set_clock_multiplier(&_gb, 1 - ((button.value - analogThreshold) / (1 - analogThreshold) * 0.75));
}
_runModeFromController = true;
[_backgroundView fadeOverlayOut];
}
else {
if (self.runMode == GBRunModeUnderclock && _runModeFromController) {
[self setRunMode:GBRunModeNormal];
_runModeFromController = false;
}
}
break;
default: break;
}
}
- (void)controller:(GCController *)controller axisChanged:(GCControllerDirectionPad *)axis usage:(GBControllerUsage)usage
{
[self updateLastController:controller];
bool left = axis.left.value > 0.5;
bool right = axis.right.value > 0.5;
bool up = axis.up.value > 0.5;
bool down = axis.down.value > 0.5;
if (_running && (left || right || up || down ) &&
[[NSUserDefaults standardUserDefaults] boolForKey:@"GBControllersHideInterface"]) {
_backgroundView.fullScreenMode = true;
}
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"GBFauxAnalogInputs"]) {
GB_set_use_faux_analog_inputs(&_gb, 0, true);
GB_set_faux_analog_inputs(&_gb, 0, axis.right.value - axis.left.value, axis.down.value - axis.up.value);
}
GB_set_key_state(&_gb, GB_KEY_LEFT, left);
GB_set_key_state(&_gb, GB_KEY_RIGHT, right);
GB_set_key_state(&_gb, GB_KEY_UP, up);
GB_set_key_state(&_gb, GB_KEY_DOWN, down);
}
- (void)controller:(GCController *)controller motionChanged:(GCMotion *)motion
{
if (controller != _lastController) return;
GCAcceleration gravity = {0,};
GCAcceleration userAccel = {0,};
if (@available(iOS 14.0, *)) {
if (motion.hasGravityAndUserAcceleration) {
gravity = motion.gravity;
userAccel = motion.userAcceleration;
}
else {
gravity = motion.acceleration;
}
}
else {
gravity = motion.gravity;
userAccel = motion.userAcceleration;
}
GB_set_accelerometer_values(&_gb, -(gravity.x + userAccel.x), gravity.y + userAccel.y);
}
- (void)verifyEntitlements
{
/*
Make sure SameBoy is properly signed. If the bundle identifier the Info.plist file does not match the bundle
identifier in the application-identifier entitlement, iOS will not allow SameBoy to open files.
*/
typedef void *xpc_object_t;
void *libxpc = dlopen("/usr/lib/system/libxpc.dylib", RTLD_NOW);
extern xpc_object_t xpc_copy_entitlements_for_self$(void);
extern const char *xpc_dictionary_get_string$(xpc_object_t *object, const char *key);
typeof(xpc_copy_entitlements_for_self$) *xpc_copy_entitlements_for_self = dlsym(libxpc, "xpc_copy_entitlements_for_self");
typeof(xpc_dictionary_get_string$) *xpc_dictionary_get_string = dlsym(libxpc, "xpc_dictionary_get_string");
if (!xpc_copy_entitlements_for_self || !xpc_dictionary_get_string) return;
xpc_object_t entitlements = xpc_copy_entitlements_for_self();
if (!entitlements) return;
const char *_entIdentifier = xpc_dictionary_get_string(entitlements, "application-identifier");
NSString *entIdentifier = _entIdentifier? @(_entIdentifier) : nil;
const char *_teamIdentifier = xpc_dictionary_get_string(entitlements, "com.apple.developer.team-identifier");
NSString *teamIdentifier = _teamIdentifier? @(_teamIdentifier) : nil;
if (!entIdentifier) { // No identifier. Installed using a jailbreak, we're fine.
return;
}
if (teamIdentifier && [entIdentifier hasPrefix:[teamIdentifier stringByAppendingString:@"."]]) {
entIdentifier = [entIdentifier substringFromIndex:teamIdentifier.length + 1];
}
NSString *plistIdentifier = [NSBundle mainBundle].bundleIdentifier;
if (![entIdentifier isEqual:plistIdentifier]) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"SameBoy is not properly signed and might not be able to open ROMs"
message:[NSString stringWithFormat:@"The bundle identifier in the Info.plist file (“%@”) does not match the one in the entitlements (“%@”)", plistIdentifier, entIdentifier]
preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Close"
style:UIAlertActionStyleCancel
handler:nil]];
[self presentViewController:alert animated:true completion:nil];
}
}
- (void)saveStateToFile:(NSString *)file
{
NSString *tempPath = [file stringByAppendingPathExtension:@"tmp"];
if (!GB_save_state(&_gb, tempPath.UTF8String)) {
rename(tempPath.UTF8String, file.UTF8String);
}
NSData *data = [NSData dataWithBytes:_gbView.previousBuffer
length:GB_get_screen_width(&_gb) *
GB_get_screen_height(&_gb) *
sizeof(*_gbView.previousBuffer)];
UIImage *screenshot = [self imageFromData:data width:GB_get_screen_width(&_gb) height:GB_get_screen_height(&_gb)];
[UIImagePNGRepresentation(screenshot) writeToFile:[file stringByAppendingPathExtension:@"png"] atomically:false];
}
- (bool)loadStateFromFile:(NSString *)file
{
_skipAutoLoad = true;
GB_model_t model;
if (!GB_get_state_model(file.fileSystemRepresentation, &model)) {
if (GB_get_model(&_gb) != model) {
GB_switch_model_and_reset(&_gb, model);
}
return GB_load_state(&_gb, file.fileSystemRepresentation) == 0;
}
return false;
}
- (void)loadROM
{
GBROMManager *romManager = [GBROMManager sharedManager];
if (romManager.romFile) {
if (!_skipAutoLoad) {
// Todo: display errors and warnings
if ([romManager.romFile.pathExtension.lowercaseString isEqualToString:@"isx"]) {
_romLoaded = GB_load_isx(&_gb, romManager.romFile.fileSystemRepresentation) == 0;
}
else {
_romLoaded = GB_load_rom(&_gb, romManager.romFile.fileSystemRepresentation) == 0;
}
if (_romLoaded) {
GB_reset(&_gb);
GB_load_battery(&_gb, [GBROMManager sharedManager].batterySaveFile.fileSystemRepresentation);
GB_remove_all_cheats(&_gb);
GB_load_cheats(&_gb, [GBROMManager sharedManager].cheatsFile.UTF8String, false);
if (![self loadStateFromFile:[GBROMManager sharedManager].autosaveStateFile]) {
// Newly played ROM, pick the best model
uint8_t *rom = GB_get_direct_access(&_gb, GB_DIRECT_ACCESS_ROM, NULL, NULL);
if ((rom[0x143] & 0x80)) {
if (!GB_is_cgb(&_gb)) {
GB_switch_model_and_reset(&_gb, [[NSUserDefaults standardUserDefaults] integerForKey:@"GBCGBModel"]);
}
}
else if ((rom[0x146] == 3) && !GB_is_sgb(&_gb)) {
GB_switch_model_and_reset(&_gb, [[NSUserDefaults standardUserDefaults] integerForKey:@"GBSGBModel"]);
}
}
}
NSDate *date = nil;
@try {
[[NSURL fileURLWithPath:[GBROMManager sharedManager].autosaveStateFile] getResourceValue:&date
forKey:NSURLContentModificationDateKey
error:nil];
}
@catch (NSException *exception) {
/* fileURLWithPath: throws an exception on some crash logs. I don't know why or how to reproduce it,
but let's at least not crash. */
GB_rewind_reset(&_gb);
}
// Reset the rewind buffer only if we switched ROMs or had the save state change externally
if (![_lastSavedROM isEqual:[GBROMManager sharedManager].currentROM] ||
![_saveDate isEqual:date]) {
GB_rewind_reset(&_gb);
}
}
}
else {
_romLoaded = false;
}
dispatch_async(dispatch_get_main_queue(), ^{
_gbView.hidden = !_romLoaded;
});
_swappingROM = false;
_skipAutoLoad = false;
}
- (void)applicationDidBecomeActive:(UIApplication *)application
{
[self start];
}
-(void)presentViewController:(UIViewController *)viewControllerToPresent animated:(BOOL)flag completion:(void (^)(void))completion
{
[self stop];
[super presentViewController:viewControllerToPresent
animated:flag
completion:completion];
}
- (void)reset
{
[self stop];
_skipAutoLoad = true;
GB_reset(&_gb);
[self start];
}
- (void)openLibrary
{
[self presentViewController:[[GBLibraryViewController alloc] init]
animated:true
completion:nil];
}
- (void)changeModel
{
GBOptionViewController *controller = [[GBOptionViewController alloc] initWithHeader:@"Select a model to emulate"];
controller.footer = @"Changing the emulated model will reset the emulator";
GB_model_t currentModel = GB_get_model(&_gb);
struct {
NSString *title;
NSString *settingKey;
bool checked;
} items[] = {
{@"Game Boy", @"GBDMGModel", currentModel < GB_MODEL_SGB},
{@"Game Boy Pocket/Light", nil, currentModel == GB_MODEL_MGB},
{@"Super Game Boy", @"GBSGBModel", GB_is_sgb(&_gb)},
{@"Game Boy Color", @"GBCGBModel", GB_is_cgb(&_gb) && currentModel <= GB_MODEL_CGB_E},
{@"Game Boy Advance", @"GBAGBModel", currentModel > GB_MODEL_CGB_E},
};
for (unsigned i = 0; i < sizeof(items) / sizeof(items[0]); i++) {
GB_model_t model = GB_MODEL_MGB;
if (items[i].settingKey) {
model = [[NSUserDefaults standardUserDefaults] integerForKey:items[i].settingKey];
}
[controller addOption:items[i].title withCheckmark:items[i].checked action:^{
[self stop];
_skipAutoLoad = true;
GB_switch_model_and_reset(&_gb, model);
if (model > GB_MODEL_CGB_E && ![[NSUserDefaults standardUserDefaults] boolForKey:@"GBShownGBAWarning"]) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"SameBoy is not a Game Boy Advance Emulator"
message:@"SameBoy cannot play GBA games. Changing the model to Game Boy Advance lets you play Game Boy games as if on a Game Boy Advance in Game Boy Color mode."
preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Close"
style:UIAlertActionStyleCancel
handler:^(UIAlertAction *action) {
[self start];
[[NSUserDefaults standardUserDefaults] setBool:true forKey:@"GBShownGBAWarning"];
}]];
[self presentViewController:alert animated:true completion:nil];
}
else {
[self start];
}
}];
}
controller.title = @"Change Model";
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:controller];
UIBarButtonItem *close = [[UIBarButtonItem alloc] initWithTitle:@"Close"
style:UIBarButtonItemStylePlain
target:self
action:@selector(dismissViewController)];
[navController.visibleViewController.navigationItem setLeftBarButtonItem:close];
[self presentViewController:navController animated:true completion:nil];
}
- (void)openStates
{
UINavigationController *controller = [[UINavigationController alloc] initWithRootViewController:[[GBStatesViewController alloc] init]];
UIVisualEffect *effect = [UIBlurEffect effectWithStyle:(UIBlurEffectStyle)UIBlurEffectStyleProminent];
UIVisualEffectView *effectView = [[UIVisualEffectView alloc] initWithEffect:effect];
effectView.frame = controller.view.bounds;
effectView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
[controller.view insertSubview:effectView atIndex:0];
UIBarButtonItem *close = [[UIBarButtonItem alloc] initWithTitle:@"Close"
style:UIBarButtonItemStylePlain
target:self
action:@selector(dismissViewController)];
[controller.visibleViewController.navigationItem setLeftBarButtonItem:close];
[self presentViewController:controller
animated:true
completion:nil];
}
- (void)openSettings
{
UIBarButtonItem *close = [[UIBarButtonItem alloc] initWithTitle:@"Close"
style:UIBarButtonItemStylePlain
target:self
action:@selector(dismissViewController)];
[self presentViewController:[GBSettingsViewController settingsViewControllerWithLeftButton:close]
animated:true
completion:nil];
}
- (void)showAbout
{
[self presentViewController:[[GBAboutController alloc] init] animated:true completion:nil];
}
- (void)openCheats
{
UINavigationController *controller = [[UINavigationController alloc] initWithRootViewController:[[GBCheatsController alloc] initWithGameBoy:&_gb]];
UIBarButtonItem *close = [[UIBarButtonItem alloc] initWithTitle:@"Close"
style:UIBarButtonItemStylePlain
target:self
action:@selector(dismissViewController)];
[controller.visibleViewController.navigationItem setLeftBarButtonItem:close];
[self presentViewController:controller
animated:true
completion:nil];
}
- (void)dismissViewControllerAnimated:(BOOL)flag completion:(void (^)(void))completion
{
[super dismissViewControllerAnimated:flag completion:^() {
if (completion) {
completion();
}
dispatch_async(dispatch_get_main_queue(), ^{
[self start];
});
}];
}
- (void)setNeedsUpdateOfSupportedInterfaceOrientations
{
/* Hack. Some view controllers dismiss without calling the method above. */
[super setNeedsUpdateOfSupportedInterfaceOrientations];
dispatch_async(dispatch_get_main_queue(), ^{
[self start];
});
}
- (void)dismissViewController
{
[self dismissViewControllerAnimated:true completion:nil];
}
- (void)applicationWillResignActive:(UIApplication *)application
{
[self stop];
}
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)orientation duration:(NSTimeInterval)duration
{
GBLayout *layout = nil;
_orientation = orientation;
switch (orientation) {
default:
case UIInterfaceOrientationUnknown:
case UIInterfaceOrientationPortrait:
case UIInterfaceOrientationPortraitUpsideDown:
layout = _verticalLayout;
break;
case UIInterfaceOrientationLandscapeRight:
layout = _horizontalLayoutLeft;
break;
case UIInterfaceOrientationLandscapeLeft:
layout = _horizontalLayoutRight;
break;
}
_backgroundView.frame = [layout viewRectForOrientation:orientation];
_backgroundView.layout = layout;
if (!self.presentedViewController) {
_window.backgroundColor = _backgroundView.fullScreenMode? [UIColor blackColor] :
layout.theme.backgroundGradientBottom;
}
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
UIEdgeInsets insets = self.window.safeAreaInsets;
bool landscape = true;
if (_orientation == UIInterfaceOrientationPortrait || _orientation == UIInterfaceOrientationPortraitUpsideDown) {
landscape = false;
}
_cameraPositionButton.frame = CGRectMake(insets.left + 8,
_backgroundView.bounds.size.height - 8 - insets.bottom - 32,
32,
32);
if (_changeCameraButton) {
_changeCameraButton.frame = CGRectMake(insets.left + 8 + (landscape? (32 + 8) : 0 ),
_backgroundView.bounds.size.height - 8 - insets.bottom - 32 - (landscape? 0 : (32 + 8)),
32,
32);
}
_printerButton.frame = CGRectMake(_backgroundView.bounds.size.width - 8 - insets.right - 32,
_backgroundView.bounds.size.height - 8 - insets.bottom - 32,
32,
32);
_printerSpinner.frame = CGRectMake(_backgroundView.bounds.size.width - 8 - insets.right - 32 - (landscape? (32 + 4) : 0),
_backgroundView.bounds.size.height - 8 - insets.bottom - 32 - (landscape? 0 : (32 + 4)),
32,
32);
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations
{
if ([UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad) {
return UIInterfaceOrientationMaskAll;
}
if (MAX([UIScreen mainScreen].bounds.size.height, [UIScreen mainScreen].bounds.size.width) <= 568) {
return UIInterfaceOrientationMaskLandscape;
}
return UIInterfaceOrientationMaskAllButUpsideDown;
}
- (BOOL)shouldAutorotate
{
if (_running && GB_has_accelerometer(&_gb)) {
return false;
}
return true;
}
- (UIRectEdge)preferredScreenEdgesDeferringSystemGestures
{
return UIRectEdgeTop;
}
- (BOOL)prefersStatusBarHidden
{
switch (_orientation) {
case UIInterfaceOrientationLandscapeRight:
case UIInterfaceOrientationLandscapeLeft:
return true;
default:
return false;
}
}
- (UIStatusBarStyle)preferredStatusBarStyle
{
if (@available(iOS 13.0, *)) {
return (_verticalLayout.theme.isDark || _backgroundView.fullScreenMode)? UIStatusBarStyleLightContent : UIStatusBarStyleDarkContent;
}
return (_verticalLayout.theme.isDark || _backgroundView.fullScreenMode)? UIStatusBarStyleLightContent : UIStatusBarStyleDefault;
}
- (void)preRun
{
dispatch_async(dispatch_get_main_queue(), ^{
UIApplication.sharedApplication.idleTimerDisabled = true;
});
GB_set_pixels_output(&_gb, _gbView.pixels);
GB_set_sample_rate(&_gb, 96000);
if (![[[NSUserDefaults standardUserDefaults] stringForKey:@"GBAudioMode"] isEqual:@"off"]) {
_audioClient = [[GBAudioClient alloc] initWithRendererBlock:^(UInt32 sampleRate, UInt32 nFrames, GB_sample_t *buffer) {
[_audioLock lock];
if (_audioBufferPosition < nFrames) {
_audioBufferNeeded = nFrames;
[_audioLock waitUntilDate:[NSDate dateWithTimeIntervalSinceNow:(double)(_audioBufferNeeded - _audioBufferPosition) / sampleRate]];
_audioBufferNeeded = 0;
}
if (_stopping) {
memset(buffer, 0, nFrames * sizeof(*buffer));
[_audioLock unlock];
return;
}
if (_audioBufferPosition < nFrames) {
// Not enough audio
memset(buffer, 0, (nFrames - _audioBufferPosition) * sizeof(*buffer));
memcpy(buffer, _audioBuffer, _audioBufferPosition * sizeof(*buffer));
// Do not reset the audio position to avoid more underflows
}
else if (_audioBufferPosition < nFrames + 4800) {
memcpy(buffer, _audioBuffer, nFrames * sizeof(*buffer));
memmove(_audioBuffer, _audioBuffer + nFrames, (_audioBufferPosition - nFrames) * sizeof(*buffer));
_audioBufferPosition = _audioBufferPosition - nFrames;
}
else {
memcpy(buffer, _audioBuffer + (_audioBufferPosition - nFrames), nFrames * sizeof(*buffer));
_audioBufferPosition = 0;
}
[_audioLock unlock];
} andSampleRate:96000];
}
[_audioClient start];
if (GB_has_accelerometer(&_gb)) {
if (@available(iOS 14.0, *)) {
for (GCController *controller in [GCController controllers]) {
if (controller.motion.sensorsRequireManualActivation) {
[controller.motion setSensorsActive:true];
}
}
}
[_motionManager startAccelerometerUpdatesToQueue:[NSOperationQueue mainQueue]
withHandler:^(CMAccelerometerData *accelerometerData, NSError *error) {
if (_lastController.motion) return;
CMAcceleration data = accelerometerData.acceleration;
UIInterfaceOrientation orientation = _orientation;
switch (orientation) {
case UIInterfaceOrientationUnknown:
case UIInterfaceOrientationPortrait:
break;
case UIInterfaceOrientationPortraitUpsideDown:
data.x = -data.x;
data.y = -data.y;
break;
case UIInterfaceOrientationLandscapeLeft: {
double tempX = data.x;
data.x = data.y;
data.y = -tempX;
break;
}
case UIInterfaceOrientationLandscapeRight:{
double tempX = data.x;
data.x = -data.y;
data.y = tempX;
break;
}
}
GB_set_accelerometer_values(&_gb, -data.x, data.y);
}];
}
/* Clear pending alarms, don't play alarms while playing */
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"GBNotificationsUsed"]) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center removeDeliveredNotificationsWithIdentifiers:@[[GBROMManager sharedManager].romFile]];
[center removePendingNotificationRequestsWithIdentifiers:@[[GBROMManager sharedManager].romFile]];
}
if (GB_rom_supports_alarms(&_gb)) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center requestAuthorizationWithOptions:UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert completionHandler:nil];
}
}
- (void)run
{
[self loadROM];
if (!_romLoaded) {
_running = false;
_stopping = false;
return;
}
[self preRun];
while (_running) {
if (_rewind) {
_rewind = false;
GB_rewind_pop(&_gb);
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"GBDynamicSpeed"]) {
if (!GB_rewind_pop(&_gb)) {
self.runMode = GBRunModePaused;
_rewindOver = true;
}
}
else {
for (unsigned i = [[NSUserDefaults standardUserDefaults] integerForKey:@"GBRewindSpeed"]; i--;) {
if (!GB_rewind_pop(&_gb)) {
self.runMode = GBRunModePaused;
_rewindOver = true;
}
}
}
}
if (_runMode != GBRunModePaused) {
GB_run(&_gb);
}
}
[self postRun];
_stopping = false;
}
- (void)userNotificationCenter:(UNUserNotificationCenter *)center
didReceiveNotificationResponse:(UNNotificationResponse *)response
withCompletionHandler:(void (^)(void))completionHandler
{
if (![response.notification.request.identifier isEqual:[GBROMManager sharedManager].currentROM]) {
[self application:[UIApplication sharedApplication]
openURL:[NSURL fileURLWithPath:response.notification.request.identifier]
options:@{}];
}
completionHandler();
}
- (UIImage *)imageFromData:(NSData *)data width:(unsigned)width height:(unsigned)height
{
/* Convert the screenshot to a CGImageRef */
CGDataProviderRef provider = CGDataProviderCreateWithData(NULL, data.bytes, data.length, NULL);
CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
CGBitmapInfo bitmapInfo = kCGBitmapByteOrderDefault | kCGImageAlphaNoneSkipLast;
CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
CGImageRef iref = CGImageCreate(width,
height,
8,
32,
4 * width,
colorSpaceRef,
bitmapInfo,
provider,
NULL,
true,
renderingIntent);
UIImage *ret = [[UIImage alloc] initWithCGImage:iref];
CGColorSpaceRelease(colorSpaceRef);
CGDataProviderRelease(provider);
CGImageRelease(iref);
return ret;
}
- (void)postRun
{
[_audioLock lock];
_audioBufferPosition = _audioBufferNeeded = 0;
[_audioLock signal];
[_audioLock unlock];
[_audioClient stop];
_audioClient = nil;
if (!_swappingROM) {
GB_save_battery(&_gb, [GBROMManager sharedManager].batterySaveFile.fileSystemRepresentation);
[self saveStateToFile:[GBROMManager sharedManager].autosaveStateFile];
NSDate *date;
[[NSURL fileURLWithPath:[GBROMManager sharedManager].autosaveStateFile] getResourceValue:&date
forKey:NSURLContentModificationDateKey
error:nil];
_saveDate = date;
_lastSavedROM = [GBROMManager sharedManager].currentROM;
}
[[GBHapticManager sharedManager] setRumbleStrength:0];
if (@available(iOS 14.0, *)) {
for (GCController *controller in [GCController controllers]) {
if (controller.motion.sensorsRequireManualActivation) {
[controller.motion setSensorsActive:false];
}
}
}
[_motionManager stopAccelerometerUpdates];
unsigned timeToAlarm = GB_time_to_alarm(&_gb);
if (timeToAlarm) {
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
UNMutableNotificationContent *notificationContent = [[UNMutableNotificationContent alloc] init];
NSString *friendlyName = [[[GBROMManager sharedManager].romFile lastPathComponent] stringByDeletingPathExtension];
NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:@"\\([^)]+\\)|\\[[^\\]]+\\]" options:0 error:nil];
friendlyName = [regex stringByReplacingMatchesInString:friendlyName options:0 range:NSMakeRange(0, [friendlyName length]) withTemplate:@""];
friendlyName = [friendlyName stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
notificationContent.title = [NSString stringWithFormat:@"%@ Played an Alarm", friendlyName];
notificationContent.body = [NSString stringWithFormat:@"%@ requested your attention by playing a scheduled alarm", friendlyName];
notificationContent.sound = UNNotificationSound.defaultSound;
UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:[GBROMManager sharedManager].romFile
content:notificationContent
trigger:[UNTimeIntervalNotificationTrigger triggerWithTimeInterval:timeToAlarm repeats:false]];
[center addNotificationRequest:request withCompletionHandler:nil];
[[NSUserDefaults standardUserDefaults] setBool:true forKey:@"GBNotificationsUsed"];
}
dispatch_async(dispatch_get_main_queue(), ^{
UIApplication.sharedApplication.idleTimerDisabled = false;
});
}
- (void)start
{
if (_running) return;
if (self.presentedViewController) return;
_running = true;
[[[NSThread alloc] initWithTarget:self selector:@selector(run) object:nil] start];
}
- (void)stop
{
if (!_running) return;
[_audioLock lock];
_stopping = true;
[_audioLock signal];
[_audioLock unlock];
_running = false;
while (_stopping) {
[_audioLock lock];
[_audioLock signal];
[_audioLock unlock];
}
dispatch_async(dispatch_get_main_queue(), ^{
self.runMode = GBRunModeNormal;
[_backgroundView fadeOverlayOut];
});
}
- (NSString *)bootROMPathForName:(NSString *)name
{
if ([[NSUserDefaults standardUserDefaults] boolForKey:@"GBCustomBootROMs"]) {
NSString *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, true)[0];
path = [path stringByAppendingPathComponent:@"Boot ROMs"];
path = [path stringByAppendingPathComponent:name];
path = [path stringByAppendingPathExtension:@"bin"];
if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
return path;
}
}
return [[NSBundle mainBundle] pathForResource:name ofType:@"bin"];
}
- (void)loadBootROM: (GB_boot_rom_t)type
{
static NSString *const names[] = {
[GB_BOOT_ROM_DMG_0] = @"dmg0_boot",
[GB_BOOT_ROM_DMG] = @"dmg_boot",
[GB_BOOT_ROM_MGB] = @"mgb_boot",
[GB_BOOT_ROM_SGB] = @"sgb_boot",
[GB_BOOT_ROM_SGB2] = @"sgb2_boot",
[GB_BOOT_ROM_CGB_0] = @"cgb0_boot",
[GB_BOOT_ROM_CGB] = @"cgb_boot",
[GB_BOOT_ROM_CGB_E] = @"cgbE_boot",
[GB_BOOT_ROM_AGB_0] = @"agb0_boot",
[GB_BOOT_ROM_AGB] = @"agb_boot",
};
NSString *name = names[type];
NSString *path = [self bootROMPathForName:name];
/* These boot types are not commonly available, and they are indentical
from an emulator perspective, so fall back to the more common variants
if they can't be found. */
if (!path && type == GB_BOOT_ROM_CGB_E) {
[self loadBootROM:GB_BOOT_ROM_CGB];
return;
}
if (!path && type == GB_BOOT_ROM_AGB_0) {
[self loadBootROM:GB_BOOT_ROM_AGB];
return;
}
GB_load_boot_rom(&_gb, [path UTF8String]);
}
- (void)vblankWithType:(GB_vblank_type_t)type
{
if (type != GB_VBLANK_TYPE_REPEAT) {
[_gbView flip];
GB_set_pixels_output(&_gb, _gbView.pixels);
}
_rewind = _runMode == GBRunModeRewind;
}
- (void)gotNewSample:(GB_sample_t *)sample
{
[_audioLock lock];
if (_audioClient.isPlaying) {
if (_audioBufferPosition == _audioBufferSize) {
if (_audioBufferSize >= 0x4000) {
_audioBufferPosition = 0;
[_audioLock unlock];
return;
}
if (_audioBufferSize == 0) {
_audioBufferSize = 512;
}
else {
_audioBufferSize += _audioBufferSize >> 2;
}
_audioBuffer = realloc(_audioBuffer, sizeof(*sample) * _audioBufferSize);
}
_audioBuffer[_audioBufferPosition++] = *sample;
}
if (_audioBufferPosition == _audioBufferNeeded) {
[_audioLock signal];
_audioBufferNeeded = 0;
}
[_audioLock unlock];
}
- (void)rumbleChanged:(double)amp
{
[[GBHapticManager sharedManager] setRumbleStrength:amp];
}
- (void)updatePalette
{
memcpy(&_palette,
[GBPalettePicker paletteForTheme:[[NSUserDefaults standardUserDefaults] stringForKey:@"GBCurrentTheme"]],
sizeof(_palette));
GB_set_palette(&_gb, &_palette);
}
- (bool)handleOpenURLs:(NSArray <NSURL *> *)urls
openInPlace:(bool)inPlace
{
NSMutableArray<NSURL *> *validURLs = [NSMutableArray array];
NSMutableArray<NSString *> *skippedBasenames = [NSMutableArray array];
NSMutableArray<NSString *> *unusedZips = [NSMutableArray array];
NSString *tempDir = NSTemporaryDirectory();
__block unsigned tempIndex = 0;
for (NSURL *url in urls) {
if ([url.pathExtension.lowercaseString isEqualToString:@"zip"]) {
GBZipReader *reader = [[GBZipReader alloc] initWithPath:url.path];
if (!reader) {
[skippedBasenames addObject:url.lastPathComponent];
continue;
}
__block bool used = false;
[reader iterateFiles:^bool(NSString *filename, size_t uncompressedSize, bool (^getData)(void *), bool (^writeToPath)(NSString *)) {
if ([@[@"gb", @"gbc", @"isx"] containsObject:filename.pathExtension.lowercaseString] && uncompressedSize <= 32 * 1024 * 1024) {
tempIndex++;
NSString *subDir = [tempDir stringByAppendingFormat:@"/%u", tempIndex];
mkdir(subDir.UTF8String, 0755);
NSString *dest = [subDir stringByAppendingPathComponent:filename.lastPathComponent];
if (writeToPath(dest)) {
[validURLs addObject:[NSURL fileURLWithPath:dest]];
used = true;
}
}
return true;
}];
if (!used) {
[unusedZips addObject:url.lastPathComponent];
}
}
else if ([@[@"gb", @"gbc", @"isx"] containsObject:url.pathExtension.lowercaseString]) {
[validURLs addObject:url];
}
else {
[skippedBasenames addObject:url.lastPathComponent];
}
}
if (unusedZips.count) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"No ROMs in archive"
message:[NSString stringWithFormat:@"Could not find any Game Boy ROM files in the following archives:\n%@",
[unusedZips componentsJoinedByString:@"\n"]]
preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Close"
style:UIAlertActionStyleCancel
handler:nil]];
[self presentViewController:alert animated:true completion:nil];
}
if (skippedBasenames.count) {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Unsupported Files"
message:[NSString stringWithFormat:@"Could not import the following files because they're not supported:\n%@",
[skippedBasenames componentsJoinedByString:@"\n"]]
preferredStyle:UIAlertControllerStyleAlert];
[alert addAction:[UIAlertAction actionWithTitle:@"Close"
style:UIAlertActionStyleCancel
handler:^(UIAlertAction *action) {
[[NSUserDefaults standardUserDefaults] setBool:false forKey:@"GBShownUTIWarning"]; // Somebody might need a reminder
}]];
[self presentViewController:alert animated:true completion:nil];
}
if (validURLs.count == 1 && urls.count == 1) {
NSURL *url = validURLs.firstObject;
NSString *potentialROM = [[url.path stringByDeletingLastPathComponent] lastPathComponent];
if ([[[GBROMManager sharedManager] romFileForROM:potentialROM].stringByStandardizingPath isEqualToString:url.path.stringByStandardizingPath]) {
[GBROMManager sharedManager].currentROM = potentialROM;
}
else {
[url startAccessingSecurityScopedResource];
[GBROMManager sharedManager].currentROM =
[[GBROMManager sharedManager] importROM:url.path
keepOriginal:![url.path hasPrefix:tempDir] && !inPlace];
[url stopAccessingSecurityScopedResource];
}
return true;
}
for (NSURL *url in validURLs) {
NSString *potentialROM = [[url.path stringByDeletingLastPathComponent] lastPathComponent];
if ([[[GBROMManager sharedManager] romFileForROM:potentialROM].stringByStandardizingPath isEqualToString:url.path.stringByStandardizingPath]) {
// That's an already imported ROM
continue;
}
[url startAccessingSecurityScopedResource];
[[GBROMManager sharedManager] importROM:url.path
keepOriginal:![url.path hasPrefix:tempDir] && !inPlace];
[url stopAccessingSecurityScopedResource];
}
[self openLibrary];
return validURLs.count;
}
- (void)doImportedPaletteNotification
{
UIVisualEffectView *effectView = [[UIVisualEffectView alloc] initWithEffect:[UIBlurEffect effectWithStyle:UIBlurEffectStyleProminent]];
effectView.layer.cornerRadius = 8;
effectView.layer.masksToBounds = true;
[self.view addSubview:effectView];
UILabel *tipLabel = [[UILabel alloc] init];
tipLabel.text = [NSString stringWithFormat:@"Imported palette “%@”", [[NSUserDefaults standardUserDefaults] stringForKey:@"GBCurrentTheme"]];
if (@available(iOS 13.0, *)) {
tipLabel.textColor = [UIColor labelColor];
}
tipLabel.font = [UIFont systemFontOfSize:16];
tipLabel.alpha = 0.8;
[effectView.contentView addSubview:tipLabel];
UIView *view = self.view;
CGSize outerSize = view.frame.size;
CGSize size = [tipLabel textRectForBounds:(CGRect){{0, 0},
{outerSize.width - 32,
outerSize.height - 32}}
limitedToNumberOfLines:1].size;
size.width = ceil(size.width);
tipLabel.frame = (CGRect){{8, 8}, size};
CGRect finalFrame = (CGRect) {
{round((outerSize.width - size.width - 16) / 2), view.window.safeAreaInsets.top + 12},
{size.width + 16, size.height + 16}
};
CGRect initFrame = finalFrame;
initFrame.origin.y = -initFrame.size.height;
effectView.frame = initFrame;
effectView.alpha = 0;
[UIView animateWithDuration:0.5 animations:^{
effectView.alpha = 1.0;
effectView.frame = finalFrame;
}];
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(NSEC_PER_SEC * 1.5)), dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.5 animations:^{
effectView.alpha = 0.0;
effectView.frame = initFrame;
} completion:^(BOOL finished) {
if (finished) {
[effectView removeFromSuperview];
}
}];
});
}
- (BOOL)application:(UIApplication *)app openURL:(NSURL *)url options:(NSDictionary<UIApplicationOpenURLOptionsKey,id> *)options
{
if (self.presentedViewController && ![self.presentedViewController isKindOfClass:[UIAlertController class]]) {
[self dismissViewController];
}
if ([url.pathExtension.lowercaseString isEqual:@"sbp"]) {
[url startAccessingSecurityScopedResource];
bool success = [GBPalettePicker importPalette:url.path];
[url stopAccessingSecurityScopedResource];
if (!success) {
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"Palette Import Failed"
message:@"The imported palette file is invalid."
preferredStyle:UIAlertControllerStyleAlert];
[alertController addAction:[UIAlertAction actionWithTitle:@"Close" style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:alertController animated:true completion:nil];
}
else {
[self doImportedPaletteNotification];
}
return success;
}
NSString *potentialROM = [[url.path stringByDeletingLastPathComponent] lastPathComponent];
if ([[[GBROMManager sharedManager] romFileForROM:potentialROM].stringByStandardizingPath isEqualToString:url.path.stringByStandardizingPath]) {
[self stop];
[GBROMManager sharedManager].currentROM = potentialROM;
[self start];
return [GBROMManager sharedManager].currentROM != nil;
}
return [self handleOpenURLs:@[url]
openInPlace:[options[UIApplicationOpenURLOptionsOpenInPlaceKey] boolValue]];
}
- (void)setRunMode:(GBRunMode)runMode ignoreDynamicSpeed:(bool)ignoreDynamicSpeed
{
if (runMode == GBRunModeRewind && _rewindOver) {
runMode = GBRunModePaused;
}
if (runMode == _runMode) return;
if (_runMode == GBRunModePaused) {
[_audioClient start];
}
_runMode = runMode;
if (_runMode == GBRunModePaused) {
[_audioClient stop];
}
if (_runMode == GBRunModeNormal || _runMode == GBRunModeTurbo || _runMode == GBRunModeUnderclock) {
_rewindOver = false;
}
if (_runMode == GBRunModeNormal || _runMode == GBRunModeUnderclock || !([[NSUserDefaults standardUserDefaults] boolForKey:@"GBDynamicSpeed"] && !ignoreDynamicSpeed)) {
if (_runMode == GBRunModeTurbo) {
double multiplier = [[NSUserDefaults standardUserDefaults] doubleForKey:@"GBTurboSpeed"];
GB_set_turbo_mode(&_gb, multiplier == 1, false);
GB_set_clock_multiplier(&_gb, multiplier);
}
else if (_runMode == GBRunModeUnderclock) {
GB_set_clock_multiplier(&_gb, 0.5);
}
else {
GB_set_turbo_mode(&_gb, false, false);
GB_set_clock_multiplier(&_gb, 1.0);
}
}
}
- (void)setRunMode:(GBRunMode)runMode
{
[self setRunMode:runMode ignoreDynamicSpeed:false];
}
- (AVCaptureDevice *)captureDevice
{
if (_cameraPosition == AVCaptureDevicePositionFront) {
return _frontCaptureDevice ?: [AVCaptureDevice defaultDeviceWithMediaType: AVMediaTypeVideo];
}
return _backCaptureDevice ?: [AVCaptureDevice defaultDeviceWithMediaType: AVMediaTypeVideo];
}
- (void)cameraRequestUpdate
{
dispatch_async(dispatch_get_main_queue(), ^{
if (!_cameraSession) {
dispatch_async(_cameraQueue, ^{
@try {
if (!_cameraSession) {
NSError *error;
AVCaptureDevice *device = [self captureDevice];
AVCaptureDeviceInput *input = [AVCaptureDeviceInput deviceInputWithDevice: device error: &error];
if (!input) {
GB_camera_updated(&_gb);
return;
}
_cameraOutput = [[AVCaptureVideoDataOutput alloc] init];
[_cameraOutput setVideoSettings: @{(id)kCVPixelBufferPixelFormatTypeKey: @(kCVPixelFormatType_32BGRA)}];
[_cameraOutput setSampleBufferDelegate:self
queue:_cameraQueue];
_cameraSession = [AVCaptureSession new];
_cameraSession.sessionPreset = AVCaptureSessionPreset352x288;
[_cameraSession addInput: input];
[_cameraSession addOutput: _cameraOutput];
_cameraConnection = [_cameraOutput connectionWithMediaType: AVMediaTypeVideo];
_cameraConnection.videoOrientation = AVCaptureVideoOrientationPortrait;
[_cameraSession startRunning];
}
}
@catch (NSException *exception) {
/* I have not tested camera support on many devices, so we catch exceptions just in case. */
GB_camera_updated(&_gb);
}
});
}
_cameraNeedsUpdate = true;
[_disableCameraTimer invalidate];
if (!_cameraPositionButton.alpha) {
[UIView animateWithDuration:0.25 animations:^{
_cameraPositionButton.alpha = 1;
}];
}
if (_changeCameraButton) {
// The change camera button is only available when we are using a capture device on the back of the device
double changeCameraButtonAlpha = (_cameraPosition == AVCaptureDevicePositionFront) ? 0 : 1;
if (changeCameraButtonAlpha != _changeCameraButton.alpha) {
[UIView animateWithDuration:0.25 animations:^{
_changeCameraButton.alpha = changeCameraButtonAlpha;
}];
}
}
_disableCameraTimer = [NSTimer scheduledTimerWithTimeInterval:1
repeats:false
block:^(NSTimer *timer) {
if (_cameraPositionButton.alpha) {
[UIView animateWithDuration:0.25 animations:^{
_cameraPositionButton.alpha = 0;
}];
}
if (_changeCameraButton.alpha) {
[UIView animateWithDuration:0.25 animations:^{
_changeCameraButton.alpha = 0;
}];
}
dispatch_async(_cameraQueue, ^{
[_cameraSession stopRunning];
_cameraSession = nil;
_cameraConnection = nil;
_cameraOutput = nil;
});
}];
});
}
- (uint8_t)cameraGetPixelAtX:(uint8_t)x andY:(uint8_t)y
{
if (!_cameraImage) {
return 0;
}
if (_cameraNeedsUpdate) {
return 0;
}
y += 8; // Equalize X and Y for rotation as a 128x128 image
if (_cameraPosition == AVCaptureDevicePositionFront) {
x = 127 - x;
}
switch (_orientation) {
case UIInterfaceOrientationUnknown:
case UIInterfaceOrientationPortrait:
break;
case UIInterfaceOrientationPortraitUpsideDown:
x = 127 - x;
y = 127 - y;
break;
case UIInterfaceOrientationLandscapeLeft: {
uint8_t tempX = x;
x = y;
y = 127 - tempX;
break;
}
case UIInterfaceOrientationLandscapeRight:{
uint8_t tempX = x;
x = 127 - y;
y = tempX;
break;
}
}
if (_cameraPosition == AVCaptureDevicePositionFront) {
x = 127 - x;
}
// Center the 128*128 image on the 130*XXX (or XXX*130) captured image
unsigned offsetX = (CVPixelBufferGetWidth(_cameraImage) - 128) / 2;
unsigned offsetY = (CVPixelBufferGetHeight(_cameraImage) - 112) / 2;
uint8_t *baseAddress = (uint8_t *)CVPixelBufferGetBaseAddress(_cameraImage);
size_t bytesPerRow = CVPixelBufferGetBytesPerRow(_cameraImage);
uint8_t ret = baseAddress[(x + offsetX) * 4 + (y + offsetY) * bytesPerRow + 2];
return ret;
}
- (void)captureOutput:(AVCaptureOutput *)captureOutput didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer fromConnection:(AVCaptureConnection *)connection
{
if (!_cameraNeedsUpdate) return;
CVImageBufferRef buffer = CMSampleBufferGetImageBuffer(sampleBuffer);
CIImage *image = [CIImage imageWithCVPixelBuffer:buffer
options:[NSDictionary dictionaryWithObjectsAndKeys:[NSNull null], kCIImageColorSpace, nil]];
double scale = MAX(130.0 / CVPixelBufferGetWidth(buffer), 130.0 / CVPixelBufferGetHeight(buffer));
image = [image imageByApplyingTransform:CGAffineTransformMakeScale(scale, scale)];
if (_cameraImage) {
CVPixelBufferUnlockBaseAddress(_cameraImage, 0);
CVBufferRelease(_cameraImage);
_cameraImage = NULL;
}
CGSize size = image.extent.size;
CVPixelBufferCreate(kCFAllocatorDefault,
size.width,
size.height,
kCVPixelFormatType_32BGRA,
NULL,
&_cameraImage);
[[[CIContext alloc] init] render:image toCVPixelBuffer:_cameraImage];
CVPixelBufferLockBaseAddress(_cameraImage, 0);
GB_camera_updated(&_gb);
_cameraNeedsUpdate = false;
}
- (void)rotateCamera
{
dispatch_async(_cameraQueue, ^{
_cameraPosition ^= AVCaptureDevicePositionBack ^ AVCaptureDevicePositionFront;
[_cameraSession stopRunning];
_cameraSession = nil;
_cameraConnection = nil;
_cameraOutput = nil;
if (_cameraNeedsUpdate) {
_cameraNeedsUpdate = false;
GB_camera_updated(&_gb);
}
});
}
- (void)changeCamera
{
dispatch_async(_cameraQueue, ^{
if (![_backCaptureDevice lockForConfiguration:nil]) return;
_currentZoomIndex++;
if (_currentZoomIndex == _zoomLevels.count) {
_currentZoomIndex = 0;
}
[_backCaptureDevice rampToVideoZoomFactor:_zoomLevels[_currentZoomIndex].doubleValue withRate:2];
[_backCaptureDevice unlockForConfiguration];
});
}
- (void)openConnectMenu
{
UIAlertControllerStyle style = [UIDevice currentDevice].userInterfaceIdiom == UIUserInterfaceIdiomPad?
UIAlertControllerStyleAlert : UIAlertControllerStyleActionSheet;
GBCheckableAlertController *menu = [GBCheckableAlertController alertControllerWithTitle:@"Connect which accessory?"
message:nil
preferredStyle:style];
[menu addAction:[UIAlertAction actionWithTitle:@"None"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action) {
_printerConnected = false;
_currentPrinterImageData = nil;
[UIView animateWithDuration:0.25 animations:^{
_printerButton.alpha = 0;
}];
[_printerSpinner stopAnimating];
GB_disconnect_serial(&_gb);
}]];
[menu addAction:[UIAlertAction actionWithTitle:@"Game Boy Printer"
style:UIAlertActionStyleDefault
handler:^(UIAlertAction *action) {
_printerConnected = true;
GB_connect_printer(&_gb, printImage, printDone);
}]];
menu.selectedAction = menu.actions[_printerConnected];
[menu addAction:[UIAlertAction actionWithTitle:@"Cancel"
style:UIAlertActionStyleCancel
handler:nil]];
[self presentViewController:menu animated:true completion:nil];
}
- (void)printImage:(uint32_t *)imageBytes height:(unsigned) height
topMargin:(unsigned) topMargin bottomMargin: (unsigned) bottomMargin
exposure:(unsigned) exposure
{
uint32_t paddedImage[160 * (topMargin + height + bottomMargin)];
memset(paddedImage, 0xFF, sizeof(paddedImage));
memcpy(paddedImage + (160 * topMargin), imageBytes, 160 * height * sizeof(imageBytes[0]));
if (!_currentPrinterImageData) {
_currentPrinterImageData = [[NSMutableData alloc] init];
}
[_currentPrinterImageData appendBytes:paddedImage length:sizeof(paddedImage)];
dispatch_async(dispatch_get_main_queue(), ^{
[UIView animateWithDuration:0.25 animations:^{
_printerButton.alpha = 1;
}];
[_printerSpinner startAnimating];
});
}
- (void)printDone
{
dispatch_async(dispatch_get_main_queue(), ^{
[_printerSpinner stopAnimating];
});
}
- (void)showPrinterFeed
{
UIImage *image = [self imageFromData:_currentPrinterImageData
width:160
height:_currentPrinterImageData.length / 160 / sizeof(uint32_t)];
_window.backgroundColor = [UIColor blackColor];
[self presentViewController:[[GBPrinterFeedController alloc] initWithImage:image]
animated:true
completion:nil];
}
- (void)emptyPrinterFeed
{
_currentPrinterImageData = nil;
[UIView animateWithDuration:0.25 animations:^{
_printerButton.alpha = 0;
}];
[_printerSpinner stopAnimating];
[self dismissViewController];
}
@end