| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| #include "../../SDL_internal.h" |
| |
| /* This is the iOS implementation of the SDL joystick API */ |
| #include "SDL_sysjoystick_c.h" |
| |
| /* needed for SDL_IPHONE_MAX_GFORCE macro */ |
| #include "../../../include/SDL_config_iphoneos.h" |
| |
| #include "SDL_assert.h" |
| #include "SDL_events.h" |
| #include "SDL_joystick.h" |
| #include "SDL_hints.h" |
| #include "SDL_stdinc.h" |
| #include "../SDL_sysjoystick.h" |
| #include "../SDL_joystick_c.h" |
| |
| |
| #if !SDL_EVENTS_DISABLED |
| #include "../../events/SDL_events_c.h" |
| #endif |
| |
| #if !TARGET_OS_TV |
| #import <CoreMotion/CoreMotion.h> |
| #endif |
| |
| #ifdef SDL_JOYSTICK_MFI |
| #import <GameController/GameController.h> |
| |
| static id connectObserver = nil; |
| static id disconnectObserver = nil; |
| |
| #include <Availability.h> |
| #include <objc/message.h> |
| |
| /* remove compilation warnings for strict builds by defining these selectors, even though |
| * they are only ever used indirectly through objc_msgSend |
| */ |
| @interface GCExtendedGamepad (SDL) |
| #if !((__IPHONE_OS_VERSION_MAX_ALLOWED >= 121000) || (__APPLETV_OS_VERSION_MAX_ALLOWED >= 121000) || (__MAC_OS_VERSION_MAX_ALLOWED >= 1401000)) |
| @property (nonatomic, readonly, nullable) GCControllerButtonInput *leftThumbstickButton; |
| @property (nonatomic, readonly, nullable) GCControllerButtonInput *rightThumbstickButton; |
| #endif |
| #if !((__IPHONE_OS_VERSION_MAX_ALLOWED >= 130000) || (__APPLETV_OS_VERSION_MAX_ALLOWED >= 130000) || (__MAC_OS_VERSION_MAX_ALLOWED >= 1500000)) |
| @property (nonatomic, readonly) GCControllerButtonInput *buttonMenu; |
| @property (nonatomic, readonly, nullable) GCControllerButtonInput *buttonOptions; |
| #endif |
| #if !((__IPHONE_OS_VERSION_MAX_ALLOWED >= 140000) || (__APPLETV_OS_VERSION_MAX_ALLOWED >= 140000) || (__MAC_OS_VERSION_MAX_ALLOWED > 1500000)) |
| @property (nonatomic, readonly, nullable) GCControllerButtonInput *buttonHome; |
| #endif |
| @end |
| @interface GCMicroGamepad (SDL) |
| #if !((__IPHONE_OS_VERSION_MAX_ALLOWED >= 130000) || (__APPLETV_OS_VERSION_MAX_ALLOWED >= 130000) || (__MAC_OS_VERSION_MAX_ALLOWED >= 1500000)) |
| @property (nonatomic, readonly) GCControllerButtonInput *buttonMenu; |
| #endif |
| @end |
| |
| #if (__IPHONE_OS_VERSION_MAX_ALLOWED >= 140000) || (__APPLETV_OS_VERSION_MAX_ALLOWED >= 140000) || (__MAC_OS_VERSION_MAX_ALLOWED > 1500000) |
| #define ENABLE_MFI_BATTERY |
| #define ENABLE_MFI_RUMBLE |
| #endif |
| |
| #ifdef ENABLE_MFI_RUMBLE |
| #import <CoreHaptics/CoreHaptics.h> |
| #endif |
| |
| #endif /* SDL_JOYSTICK_MFI */ |
| |
| #if !TARGET_OS_TV |
| static const char *accelerometerName = "iOS Accelerometer"; |
| static CMMotionManager *motionManager = nil; |
| #endif /* !TARGET_OS_TV */ |
| |
| static SDL_JoystickDeviceItem *deviceList = NULL; |
| |
| static int numjoysticks = 0; |
| int SDL_AppleTVRemoteOpenedAsJoystick = 0; |
| |
| static SDL_JoystickDeviceItem * |
| GetDeviceForIndex(int device_index) |
| { |
| SDL_JoystickDeviceItem *device = deviceList; |
| int i = 0; |
| |
| while (i < device_index) { |
| if (device == NULL) { |
| return NULL; |
| } |
| device = device->next; |
| i++; |
| } |
| |
| return device; |
| } |
| |
| static void |
| IOS_AddMFIJoystickDevice(SDL_JoystickDeviceItem *device, GCController *controller) |
| { |
| #ifdef SDL_JOYSTICK_MFI |
| const Uint16 VENDOR_APPLE = 0x05AC; |
| const Uint16 VENDOR_MICROSOFT = 0x045e; |
| const Uint16 VENDOR_SONY = 0x054C; |
| Uint16 *guid16 = (Uint16 *)device->guid.data; |
| Uint16 vendor = 0; |
| Uint16 product = 0; |
| Uint8 subtype = 0; |
| |
| const char *name = NULL; |
| /* Explicitly retain the controller because SDL_JoystickDeviceItem is a |
| * struct, and ARC doesn't work with structs. */ |
| device->controller = (__bridge GCController *) CFBridgingRetain(controller); |
| |
| if (controller.vendorName) { |
| name = controller.vendorName.UTF8String; |
| } |
| |
| if (!name) { |
| name = "MFi Gamepad"; |
| } |
| |
| device->name = SDL_CreateJoystickName(0, 0, NULL, name); |
| |
| if (controller.extendedGamepad) { |
| GCExtendedGamepad *gamepad = controller.extendedGamepad; |
| BOOL is_xbox = [controller.vendorName containsString: @"Xbox"]; |
| BOOL is_ps4 = [controller.vendorName containsString: @"DUALSHOCK"]; |
| #if TARGET_OS_TV |
| BOOL is_MFi = (!is_xbox && !is_ps4); |
| #endif |
| int nbuttons = 0; |
| |
| /* These buttons are part of the original MFi spec */ |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_A); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_B); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_X); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_Y); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_LEFTSHOULDER); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_RIGHTSHOULDER); |
| nbuttons += 6; |
| |
| /* These buttons are available on some newer controllers */ |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunguarded-availability-new" |
| if ([gamepad respondsToSelector:@selector(leftThumbstickButton)] && gamepad.leftThumbstickButton) { |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_LEFTSTICK); |
| ++nbuttons; |
| } |
| if ([gamepad respondsToSelector:@selector(rightThumbstickButton)] && gamepad.rightThumbstickButton) { |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_RIGHTSTICK); |
| ++nbuttons; |
| } |
| if ([gamepad respondsToSelector:@selector(buttonOptions)] && gamepad.buttonOptions) { |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_BACK); |
| ++nbuttons; |
| } |
| if ([gamepad respondsToSelector:@selector(buttonHome)] && gamepad.buttonHome) { |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_GUIDE); |
| ++nbuttons; |
| } |
| BOOL has_direct_menu = [gamepad respondsToSelector:@selector(buttonMenu)] && gamepad.buttonMenu; |
| #if TARGET_OS_TV |
| /* On tvOS MFi controller menu button brings you to the home screen */ |
| if (is_MFi) { |
| has_direct_menu = FALSE; |
| } |
| #endif |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_START); |
| ++nbuttons; |
| if (!has_direct_menu) { |
| device->uses_pause_handler = SDL_TRUE; |
| } |
| #pragma clang diagnostic pop |
| |
| if (is_xbox) { |
| vendor = VENDOR_MICROSOFT; |
| product = 0x02E0; /* Assume Xbox One S BLE Controller unless/until GCController flows VID/PID */ |
| } else if (is_ps4) { |
| vendor = VENDOR_SONY; |
| product = 0x09CC; /* Assume DS4 Slim unless/until GCController flows VID/PID */ |
| } else { |
| vendor = VENDOR_APPLE; |
| product = 1; |
| subtype = 1; |
| } |
| |
| device->naxes = 6; /* 2 thumbsticks and 2 triggers */ |
| device->nhats = 1; /* d-pad */ |
| device->nbuttons = nbuttons; |
| |
| } else if (controller.gamepad) { |
| int nbuttons = 0; |
| |
| /* These buttons are part of the original MFi spec */ |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_A); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_B); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_X); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_Y); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_LEFTSHOULDER); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_RIGHTSHOULDER); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_START); |
| nbuttons += 7; |
| device->uses_pause_handler = SDL_TRUE; |
| |
| vendor = VENDOR_APPLE; |
| product = 2; |
| subtype = 2; |
| device->naxes = 0; /* no traditional analog inputs */ |
| device->nhats = 1; /* d-pad */ |
| device->nbuttons = nbuttons; |
| } |
| #if TARGET_OS_TV |
| else if (controller.microGamepad) { |
| int nbuttons = 0; |
| |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_A); |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_B); /* Button X on microGamepad */ |
| nbuttons += 2; |
| |
| device->button_mask |= (1 << SDL_CONTROLLER_BUTTON_START); |
| ++nbuttons; |
| device->uses_pause_handler = SDL_TRUE; |
| |
| vendor = VENDOR_APPLE; |
| product = 3; |
| subtype = 3; |
| device->naxes = 2; /* treat the touch surface as two axes */ |
| device->nhats = 0; /* apparently the touch surface-as-dpad is buggy */ |
| device->nbuttons = nbuttons; |
| |
| controller.microGamepad.allowsRotation = SDL_GetHintBoolean(SDL_HINT_APPLE_TV_REMOTE_ALLOW_ROTATION, SDL_FALSE); |
| } |
| #endif /* TARGET_OS_TV */ |
| |
| /* We only need 16 bits for each of these; space them out to fill 128. */ |
| /* Byteswap so devices get same GUID on little/big endian platforms. */ |
| *guid16++ = SDL_SwapLE16(SDL_HARDWARE_BUS_BLUETOOTH); |
| *guid16++ = 0; |
| *guid16++ = SDL_SwapLE16(vendor); |
| *guid16++ = 0; |
| *guid16++ = SDL_SwapLE16(product); |
| *guid16++ = 0; |
| |
| *guid16++ = SDL_SwapLE16(device->button_mask); |
| |
| if (subtype != 0) { |
| /* Note that this is an MFI controller and what subtype it is */ |
| device->guid.data[14] = 'm'; |
| device->guid.data[15] = subtype; |
| } |
| |
| /* This will be set when the first button press of the controller is |
| * detected. */ |
| controller.playerIndex = -1; |
| |
| #endif /* SDL_JOYSTICK_MFI */ |
| } |
| |
| static void |
| IOS_AddJoystickDevice(GCController *controller, SDL_bool accelerometer) |
| { |
| SDL_JoystickDeviceItem *device = deviceList; |
| |
| #if TARGET_OS_TV |
| if (!SDL_GetHintBoolean(SDL_HINT_TV_REMOTE_AS_JOYSTICK, SDL_TRUE)) { |
| /* Ignore devices that aren't actually controllers (e.g. remotes), they'll be handled as keyboard input */ |
| if (controller && !controller.extendedGamepad && !controller.gamepad && controller.microGamepad) { |
| return; |
| } |
| } |
| #endif |
| |
| while (device != NULL) { |
| if (device->controller == controller) { |
| return; |
| } |
| device = device->next; |
| } |
| |
| device = (SDL_JoystickDeviceItem *) SDL_calloc(1, sizeof(SDL_JoystickDeviceItem)); |
| if (device == NULL) { |
| return; |
| } |
| |
| device->accelerometer = accelerometer; |
| device->instance_id = SDL_GetNextJoystickInstanceID(); |
| |
| if (accelerometer) { |
| #if TARGET_OS_TV |
| SDL_free(device); |
| return; |
| #else |
| device->name = SDL_strdup(accelerometerName); |
| device->naxes = 3; /* Device acceleration in the x, y, and z axes. */ |
| device->nhats = 0; |
| device->nbuttons = 0; |
| |
| /* Use the accelerometer name as a GUID. */ |
| SDL_memcpy(&device->guid.data, device->name, SDL_min(sizeof(SDL_JoystickGUID), SDL_strlen(device->name))); |
| #endif /* TARGET_OS_TV */ |
| } else if (controller) { |
| IOS_AddMFIJoystickDevice(device, controller); |
| } |
| |
| if (deviceList == NULL) { |
| deviceList = device; |
| } else { |
| SDL_JoystickDeviceItem *lastdevice = deviceList; |
| while (lastdevice->next != NULL) { |
| lastdevice = lastdevice->next; |
| } |
| lastdevice->next = device; |
| } |
| |
| ++numjoysticks; |
| |
| SDL_PrivateJoystickAdded(device->instance_id); |
| } |
| |
| static SDL_JoystickDeviceItem * |
| IOS_RemoveJoystickDevice(SDL_JoystickDeviceItem *device) |
| { |
| SDL_JoystickDeviceItem *prev = NULL; |
| SDL_JoystickDeviceItem *next = NULL; |
| SDL_JoystickDeviceItem *item = deviceList; |
| |
| if (device == NULL) { |
| return NULL; |
| } |
| |
| next = device->next; |
| |
| while (item != NULL) { |
| if (item == device) { |
| break; |
| } |
| prev = item; |
| item = item->next; |
| } |
| |
| /* Unlink the device item from the device list. */ |
| if (prev) { |
| prev->next = device->next; |
| } else if (device == deviceList) { |
| deviceList = device->next; |
| } |
| |
| if (device->joystick) { |
| device->joystick->hwdata = NULL; |
| } |
| |
| #ifdef SDL_JOYSTICK_MFI |
| @autoreleasepool { |
| if (device->controller) { |
| /* The controller was explicitly retained in the struct, so it |
| * should be explicitly released before freeing the struct. */ |
| GCController *controller = CFBridgingRelease((__bridge CFTypeRef)(device->controller)); |
| controller.controllerPausedHandler = nil; |
| device->controller = nil; |
| } |
| } |
| #endif /* SDL_JOYSTICK_MFI */ |
| |
| --numjoysticks; |
| |
| SDL_PrivateJoystickRemoved(device->instance_id); |
| |
| SDL_free(device->name); |
| SDL_free(device); |
| |
| return next; |
| } |
| |
| #if TARGET_OS_TV |
| static void SDLCALL |
| SDL_AppleTVRemoteRotationHintChanged(void *udata, const char *name, const char *oldValue, const char *newValue) |
| { |
| BOOL allowRotation = newValue != NULL && *newValue != '0'; |
| |
| @autoreleasepool { |
| for (GCController *controller in [GCController controllers]) { |
| if (controller.microGamepad) { |
| controller.microGamepad.allowsRotation = allowRotation; |
| } |
| } |
| } |
| } |
| #endif /* TARGET_OS_TV */ |
| |
| static int |
| IOS_JoystickInit(void) |
| { |
| @autoreleasepool { |
| #if !TARGET_OS_TV |
| if (SDL_GetHintBoolean(SDL_HINT_ACCELEROMETER_AS_JOYSTICK, SDL_TRUE)) { |
| /* Default behavior, accelerometer as joystick */ |
| IOS_AddJoystickDevice(nil, SDL_TRUE); |
| } |
| #endif /* !TARGET_OS_TV */ |
| |
| #ifdef SDL_JOYSTICK_MFI |
| /* GameController.framework was added in iOS 7. */ |
| if (![GCController class]) { |
| return 0; |
| } |
| |
| for (GCController *controller in [GCController controllers]) { |
| IOS_AddJoystickDevice(controller, SDL_FALSE); |
| } |
| |
| #if TARGET_OS_TV |
| SDL_AddHintCallback(SDL_HINT_APPLE_TV_REMOTE_ALLOW_ROTATION, |
| SDL_AppleTVRemoteRotationHintChanged, NULL); |
| #endif /* TARGET_OS_TV */ |
| |
| NSNotificationCenter *center = [NSNotificationCenter defaultCenter]; |
| |
| connectObserver = [center addObserverForName:GCControllerDidConnectNotification |
| object:nil |
| queue:nil |
| usingBlock:^(NSNotification *note) { |
| GCController *controller = note.object; |
| IOS_AddJoystickDevice(controller, SDL_FALSE); |
| }]; |
| |
| disconnectObserver = [center addObserverForName:GCControllerDidDisconnectNotification |
| object:nil |
| queue:nil |
| usingBlock:^(NSNotification *note) { |
| GCController *controller = note.object; |
| SDL_JoystickDeviceItem *device = deviceList; |
| while (device != NULL) { |
| if (device->controller == controller) { |
| IOS_RemoveJoystickDevice(device); |
| break; |
| } |
| device = device->next; |
| } |
| }]; |
| #endif /* SDL_JOYSTICK_MFI */ |
| } |
| |
| return 0; |
| } |
| |
| static int |
| IOS_JoystickGetCount(void) |
| { |
| return numjoysticks; |
| } |
| |
| static void |
| IOS_JoystickDetect(void) |
| { |
| } |
| |
| static const char * |
| IOS_JoystickGetDeviceName(int device_index) |
| { |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| return device ? device->name : "Unknown"; |
| } |
| |
| static int |
| IOS_JoystickGetDevicePlayerIndex(int device_index) |
| { |
| #ifdef SDL_JOYSTICK_MFI |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| if (device && device->controller) { |
| return (int)device->controller.playerIndex; |
| } |
| #endif |
| return -1; |
| } |
| |
| static void |
| IOS_JoystickSetDevicePlayerIndex(int device_index, int player_index) |
| { |
| #ifdef SDL_JOYSTICK_MFI |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| if (device && device->controller) { |
| device->controller.playerIndex = player_index; |
| } |
| #endif |
| } |
| |
| static SDL_JoystickGUID |
| IOS_JoystickGetDeviceGUID( int device_index ) |
| { |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| SDL_JoystickGUID guid; |
| if (device) { |
| guid = device->guid; |
| } else { |
| SDL_zero(guid); |
| } |
| return guid; |
| } |
| |
| static SDL_JoystickID |
| IOS_JoystickGetDeviceInstanceID(int device_index) |
| { |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| return device ? device->instance_id : -1; |
| } |
| |
| static int |
| IOS_JoystickOpen(SDL_Joystick * joystick, int device_index) |
| { |
| SDL_JoystickDeviceItem *device = GetDeviceForIndex(device_index); |
| if (device == NULL) { |
| return SDL_SetError("Could not open Joystick: no hardware device for the specified index"); |
| } |
| |
| joystick->hwdata = device; |
| joystick->instance_id = device->instance_id; |
| |
| joystick->naxes = device->naxes; |
| joystick->nhats = device->nhats; |
| joystick->nbuttons = device->nbuttons; |
| joystick->nballs = 0; |
| |
| device->joystick = joystick; |
| |
| @autoreleasepool { |
| if (device->accelerometer) { |
| #if !TARGET_OS_TV |
| if (motionManager == nil) { |
| motionManager = [[CMMotionManager alloc] init]; |
| } |
| |
| /* Shorter times between updates can significantly increase CPU usage. */ |
| motionManager.accelerometerUpdateInterval = 0.1; |
| [motionManager startAccelerometerUpdates]; |
| #endif /* !TARGET_OS_TV */ |
| } else { |
| #ifdef SDL_JOYSTICK_MFI |
| if (device->uses_pause_handler) { |
| GCController *controller = device->controller; |
| controller.controllerPausedHandler = ^(GCController *c) { |
| if (joystick->hwdata) { |
| ++joystick->hwdata->num_pause_presses; |
| } |
| }; |
| } |
| #endif /* SDL_JOYSTICK_MFI */ |
| } |
| } |
| if (device->remote) { |
| ++SDL_AppleTVRemoteOpenedAsJoystick; |
| } |
| |
| return 0; |
| } |
| |
| static void |
| IOS_AccelerometerUpdate(SDL_Joystick * joystick) |
| { |
| #if !TARGET_OS_TV |
| const float maxgforce = SDL_IPHONE_MAX_GFORCE; |
| const SInt16 maxsint16 = 0x7FFF; |
| CMAcceleration accel; |
| |
| @autoreleasepool { |
| if (!motionManager.isAccelerometerActive) { |
| return; |
| } |
| |
| accel = motionManager.accelerometerData.acceleration; |
| } |
| |
| /* |
| Convert accelerometer data from floating point to Sint16, which is what |
| the joystick system expects. |
| |
| To do the conversion, the data is first clamped onto the interval |
| [-SDL_IPHONE_MAX_G_FORCE, SDL_IPHONE_MAX_G_FORCE], then the data is multiplied |
| by MAX_SINT16 so that it is mapped to the full range of an Sint16. |
| |
| You can customize the clamped range of this function by modifying the |
| SDL_IPHONE_MAX_GFORCE macro in SDL_config_iphoneos.h. |
| |
| Once converted to Sint16, the accelerometer data no longer has coherent |
| units. You can convert the data back to units of g-force by multiplying |
| it in your application's code by SDL_IPHONE_MAX_GFORCE / 0x7FFF. |
| */ |
| |
| /* clamp the data */ |
| accel.x = SDL_min(SDL_max(accel.x, -maxgforce), maxgforce); |
| accel.y = SDL_min(SDL_max(accel.y, -maxgforce), maxgforce); |
| accel.z = SDL_min(SDL_max(accel.z, -maxgforce), maxgforce); |
| |
| /* pass in data mapped to range of SInt16 */ |
| SDL_PrivateJoystickAxis(joystick, 0, (accel.x / maxgforce) * maxsint16); |
| SDL_PrivateJoystickAxis(joystick, 1, -(accel.y / maxgforce) * maxsint16); |
| SDL_PrivateJoystickAxis(joystick, 2, (accel.z / maxgforce) * maxsint16); |
| #endif /* !TARGET_OS_TV */ |
| } |
| |
| #ifdef SDL_JOYSTICK_MFI |
| static Uint8 |
| IOS_MFIJoystickHatStateForDPad(GCControllerDirectionPad *dpad) |
| { |
| Uint8 hat = 0; |
| |
| if (dpad.up.isPressed) { |
| hat |= SDL_HAT_UP; |
| } else if (dpad.down.isPressed) { |
| hat |= SDL_HAT_DOWN; |
| } |
| |
| if (dpad.left.isPressed) { |
| hat |= SDL_HAT_LEFT; |
| } else if (dpad.right.isPressed) { |
| hat |= SDL_HAT_RIGHT; |
| } |
| |
| if (hat == 0) { |
| return SDL_HAT_CENTERED; |
| } |
| |
| return hat; |
| } |
| #endif |
| |
| static void |
| IOS_MFIJoystickUpdate(SDL_Joystick * joystick) |
| { |
| #if SDL_JOYSTICK_MFI |
| @autoreleasepool { |
| GCController *controller = joystick->hwdata->controller; |
| Uint8 hatstate = SDL_HAT_CENTERED; |
| int i; |
| int pause_button_index = 0; |
| |
| if (controller.extendedGamepad) { |
| GCExtendedGamepad *gamepad = controller.extendedGamepad; |
| |
| /* Axis order matches the XInput Windows mappings. */ |
| Sint16 axes[] = { |
| (Sint16) (gamepad.leftThumbstick.xAxis.value * 32767), |
| (Sint16) (gamepad.leftThumbstick.yAxis.value * -32767), |
| (Sint16) ((gamepad.leftTrigger.value * 65535) - 32768), |
| (Sint16) (gamepad.rightThumbstick.xAxis.value * 32767), |
| (Sint16) (gamepad.rightThumbstick.yAxis.value * -32767), |
| (Sint16) ((gamepad.rightTrigger.value * 65535) - 32768), |
| }; |
| |
| /* Button order matches the XInput Windows mappings. */ |
| Uint8 buttons[joystick->nbuttons]; |
| int button_count = 0; |
| |
| /* These buttons are part of the original MFi spec */ |
| buttons[button_count++] = gamepad.buttonA.isPressed; |
| buttons[button_count++] = gamepad.buttonB.isPressed; |
| buttons[button_count++] = gamepad.buttonX.isPressed; |
| buttons[button_count++] = gamepad.buttonY.isPressed; |
| buttons[button_count++] = gamepad.leftShoulder.isPressed; |
| buttons[button_count++] = gamepad.rightShoulder.isPressed; |
| |
| /* These buttons are available on some newer controllers */ |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunguarded-availability-new" |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_LEFTSTICK)) { |
| buttons[button_count++] = gamepad.leftThumbstickButton.isPressed; |
| } |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_RIGHTSTICK)) { |
| buttons[button_count++] = gamepad.rightThumbstickButton.isPressed; |
| } |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_BACK)) { |
| buttons[button_count++] = gamepad.buttonOptions.isPressed; |
| } |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_GUIDE)) { |
| buttons[button_count++] = gamepad.buttonHome.isPressed; |
| } |
| /* This must be the last button, so we can optionally handle it with pause_button_index below */ |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_START)) { |
| if (joystick->hwdata->uses_pause_handler) { |
| pause_button_index = button_count; |
| buttons[button_count++] = joystick->delayed_guide_button; |
| } else { |
| buttons[button_count++] = gamepad.buttonMenu.isPressed; |
| } |
| } |
| #pragma clang diagnostic pop |
| |
| hatstate = IOS_MFIJoystickHatStateForDPad(gamepad.dpad); |
| |
| for (i = 0; i < SDL_arraysize(axes); i++) { |
| SDL_PrivateJoystickAxis(joystick, i, axes[i]); |
| } |
| |
| for (i = 0; i < button_count; i++) { |
| SDL_PrivateJoystickButton(joystick, i, buttons[i]); |
| } |
| } else if (controller.gamepad) { |
| GCGamepad *gamepad = controller.gamepad; |
| |
| /* Button order matches the XInput Windows mappings. */ |
| Uint8 buttons[joystick->nbuttons]; |
| int button_count = 0; |
| buttons[button_count++] = gamepad.buttonA.isPressed; |
| buttons[button_count++] = gamepad.buttonB.isPressed; |
| buttons[button_count++] = gamepad.buttonX.isPressed; |
| buttons[button_count++] = gamepad.buttonY.isPressed; |
| buttons[button_count++] = gamepad.leftShoulder.isPressed; |
| buttons[button_count++] = gamepad.rightShoulder.isPressed; |
| pause_button_index = button_count; |
| buttons[button_count++] = joystick->delayed_guide_button; |
| |
| hatstate = IOS_MFIJoystickHatStateForDPad(gamepad.dpad); |
| |
| for (i = 0; i < button_count; i++) { |
| SDL_PrivateJoystickButton(joystick, i, buttons[i]); |
| } |
| } |
| #if TARGET_OS_TV |
| else if (controller.microGamepad) { |
| GCMicroGamepad *gamepad = controller.microGamepad; |
| |
| Sint16 axes[] = { |
| (Sint16) (gamepad.dpad.xAxis.value * 32767), |
| (Sint16) (gamepad.dpad.yAxis.value * -32767), |
| }; |
| |
| for (i = 0; i < SDL_arraysize(axes); i++) { |
| SDL_PrivateJoystickAxis(joystick, i, axes[i]); |
| } |
| |
| Uint8 buttons[joystick->nbuttons]; |
| int button_count = 0; |
| buttons[button_count++] = gamepad.buttonA.isPressed; |
| buttons[button_count++] = gamepad.buttonX.isPressed; |
| #pragma clang diagnostic push |
| #pragma clang diagnostic ignored "-Wunguarded-availability-new" |
| /* This must be the last button, so we can optionally handle it with pause_button_index below */ |
| if (joystick->hwdata->button_mask & (1 << SDL_CONTROLLER_BUTTON_START)) { |
| if (joystick->hwdata->uses_pause_handler) { |
| pause_button_index = button_count; |
| buttons[button_count++] = joystick->delayed_guide_button; |
| } else { |
| buttons[button_count++] = gamepad.buttonMenu.isPressed; |
| } |
| } |
| #pragma clang diagnostic pop |
| |
| for (i = 0; i < button_count; i++) { |
| SDL_PrivateJoystickButton(joystick, i, buttons[i]); |
| } |
| } |
| #endif /* TARGET_OS_TV */ |
| |
| if (joystick->nhats > 0) { |
| SDL_PrivateJoystickHat(joystick, 0, hatstate); |
| } |
| |
| if (joystick->hwdata->uses_pause_handler) { |
| for (i = 0; i < joystick->hwdata->num_pause_presses; i++) { |
| SDL_PrivateJoystickButton(joystick, pause_button_index, SDL_PRESSED); |
| SDL_PrivateJoystickButton(joystick, pause_button_index, SDL_RELEASED); |
| } |
| joystick->hwdata->num_pause_presses = 0; |
| } |
| |
| #ifdef ENABLE_MFI_BATTERY |
| if (@available(iOS 14.0, tvOS 14.0, *)) { |
| GCDeviceBattery *battery = controller.battery; |
| if (battery) { |
| SDL_JoystickPowerLevel ePowerLevel = SDL_JOYSTICK_POWER_UNKNOWN; |
| |
| switch (battery.batteryState) { |
| case GCDeviceBatteryStateDischarging: |
| { |
| float power_level = battery.batteryLevel; |
| if (power_level <= 0.05f) { |
| ePowerLevel = SDL_JOYSTICK_POWER_EMPTY; |
| } else if (power_level <= 0.20f) { |
| ePowerLevel = SDL_JOYSTICK_POWER_LOW; |
| } else if (power_level <= 0.70f) { |
| ePowerLevel = SDL_JOYSTICK_POWER_MEDIUM; |
| } else { |
| ePowerLevel = SDL_JOYSTICK_POWER_FULL; |
| } |
| } |
| break; |
| case GCDeviceBatteryStateCharging: |
| ePowerLevel = SDL_JOYSTICK_POWER_WIRED; |
| break; |
| case GCDeviceBatteryStateFull: |
| ePowerLevel = SDL_JOYSTICK_POWER_FULL; |
| break; |
| default: |
| break; |
| } |
| |
| SDL_PrivateJoystickBatteryLevel(joystick, ePowerLevel); |
| } |
| } |
| #endif /* ENABLE_MFI_BATTERY */ |
| } |
| #endif /* SDL_JOYSTICK_MFI */ |
| } |
| |
| #ifdef ENABLE_MFI_RUMBLE |
| |
| @interface SDL_RumbleMotor : NSObject |
| @end |
| |
| @implementation SDL_RumbleMotor { |
| CHHapticEngine *engine API_AVAILABLE(ios(13.0), tvos(14.0)); |
| id<CHHapticPatternPlayer> player API_AVAILABLE(ios(13.0), tvos(14.0)); |
| bool active; |
| } |
| |
| -(void)cleanup |
| { |
| if (self->player != nil) { |
| [self->player cancelAndReturnError:nil]; |
| self->player = nil; |
| } |
| if (self->engine != nil) { |
| [self->engine stopWithCompletionHandler:nil]; |
| self->engine = nil; |
| } |
| } |
| |
| -(int)setIntensity:(float)intensity |
| { |
| @autoreleasepool { |
| if (@available(iOS 14.0, tvOS 14.0, *)) { |
| NSError *error; |
| |
| if (self->engine == nil) { |
| return SDL_SetError("Haptics engine was stopped"); |
| } |
| |
| if (intensity == 0.0f) { |
| if (self->player && self->active) { |
| [self->player stopAtTime:0 error:&error]; |
| } |
| self->active = false; |
| return 0; |
| } |
| |
| if (self->player == nil) { |
| CHHapticEventParameter *param = [[CHHapticEventParameter alloc] initWithParameterID:CHHapticEventParameterIDHapticIntensity value:1.0f]; |
| CHHapticEvent *event = [[CHHapticEvent alloc] initWithEventType:CHHapticEventTypeHapticContinuous parameters:[NSArray arrayWithObjects:param, nil] relativeTime:0 duration:GCHapticDurationInfinite]; |
| CHHapticPattern *pattern = [[CHHapticPattern alloc] initWithEvents:[NSArray arrayWithObject:event] parameters:[[NSArray alloc] init] error:&error]; |
| if (error != nil) { |
| return SDL_SetError("Couldn't create haptic pattern: %s", [error.localizedDescription UTF8String]); |
| } |
| |
| self->player = [self->engine createPlayerWithPattern:pattern error:&error]; |
| if (error != nil) { |
| return SDL_SetError("Couldn't create haptic player: %s", [error.localizedDescription UTF8String]); |
| } |
| self->active = false; |
| } |
| |
| CHHapticDynamicParameter *param = [[CHHapticDynamicParameter alloc] initWithParameterID:CHHapticDynamicParameterIDHapticIntensityControl value:intensity relativeTime:0]; |
| [self->player sendParameters:[NSArray arrayWithObject:param] atTime:0 error:&error]; |
| if (error != nil) { |
| return SDL_SetError("Couldn't update haptic player: %s", [error.localizedDescription UTF8String]); |
| } |
| |
| if (!self->active) { |
| [self->player startAtTime:0 error:&error]; |
| self->active = true; |
| } |
| } |
| |
| return 0; |
| } |
| } |
| |
| -(id) initWithController:(GCController*)controller locality:(GCHapticsLocality)locality API_AVAILABLE(ios(14.0), tvos(14.0)) |
| { |
| @autoreleasepool { |
| NSError *error; |
| |
| self->engine = [controller.haptics createEngineWithLocality:locality]; |
| if (self->engine == nil) { |
| SDL_SetError("Couldn't create haptics engine"); |
| return nil; |
| } |
| |
| [self->engine startAndReturnError:&error]; |
| if (error != nil) { |
| SDL_SetError("Couldn't start haptics engine"); |
| return nil; |
| } |
| |
| __weak typeof(self) weakSelf = self; |
| self->engine.stoppedHandler = ^(CHHapticEngineStoppedReason stoppedReason) { |
| SDL_RumbleMotor *_this = weakSelf; |
| if (_this == nil) { |
| return; |
| } |
| |
| _this->player = nil; |
| _this->engine = nil; |
| }; |
| self->engine.resetHandler = ^{ |
| SDL_RumbleMotor *_this = weakSelf; |
| if (_this == nil) { |
| return; |
| } |
| |
| _this->player = nil; |
| [_this->engine startAndReturnError:nil]; |
| }; |
| |
| return self; |
| } |
| } |
| |
| @end |
| |
| @interface SDL_RumbleContext : NSObject |
| @end |
| |
| @implementation SDL_RumbleContext { |
| SDL_RumbleMotor *low_frequency_motor; |
| SDL_RumbleMotor *high_frequency_motor; |
| } |
| |
| -(id) initWithLowFrequencyMotor:(SDL_RumbleMotor*)low_frequency_motor andHighFrequencyMotor:(SDL_RumbleMotor*)high_frequency_motor |
| { |
| self->low_frequency_motor = low_frequency_motor; |
| self->high_frequency_motor = high_frequency_motor; |
| return self; |
| } |
| |
| -(int) rumbleWithLowFrequency:(Uint16)low_frequency_rumble andHighFrequency:(Uint16)high_frequency_rumble |
| { |
| int result = 0; |
| |
| result += [self->low_frequency_motor setIntensity:((float)low_frequency_rumble / 65535.0f)]; |
| result += [self->high_frequency_motor setIntensity:((float)high_frequency_rumble / 65535.0f)]; |
| return ((result < 0) ? -1 : 0); |
| } |
| |
| -(void)cleanup |
| { |
| [self->low_frequency_motor cleanup]; |
| [self->high_frequency_motor cleanup]; |
| } |
| |
| @end |
| |
| static SDL_RumbleContext *IOS_JoystickInitRumble(GCController *controller) |
| { |
| @autoreleasepool { |
| if (@available(iOS 14.0, tvOS 14.0, *)) { |
| SDL_RumbleMotor *low_frequency_motor = [[SDL_RumbleMotor alloc] initWithController:controller locality:GCHapticsLocalityLeftHandle]; |
| SDL_RumbleMotor *high_frequency_motor = [[SDL_RumbleMotor alloc] initWithController:controller locality:GCHapticsLocalityRightHandle]; |
| if (low_frequency_motor && high_frequency_motor) { |
| return [[SDL_RumbleContext alloc] initWithLowFrequencyMotor:low_frequency_motor andHighFrequencyMotor:high_frequency_motor]; |
| } |
| } |
| } |
| return nil; |
| } |
| |
| #endif /* ENABLE_MFI_RUMBLE */ |
| |
| static int |
| IOS_JoystickRumble(SDL_Joystick * joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble) |
| { |
| #ifdef ENABLE_MFI_RUMBLE |
| SDL_JoystickDeviceItem *device = joystick->hwdata; |
| |
| if (@available(iOS 14.0, tvOS 14.0, *)) { |
| if (!device->rumble && device->controller && device->controller.haptics) { |
| SDL_RumbleContext *rumble = IOS_JoystickInitRumble(device->controller); |
| if (rumble) { |
| device->rumble = (void *)CFBridgingRetain(rumble); |
| } |
| } |
| } |
| |
| if (device->rumble) { |
| SDL_RumbleContext *rumble = (__bridge SDL_RumbleContext *)device->rumble; |
| return [rumble rumbleWithLowFrequency:low_frequency_rumble andHighFrequency:high_frequency_rumble]; |
| } else { |
| return SDL_Unsupported(); |
| } |
| #else |
| return SDL_Unsupported(); |
| #endif |
| } |
| |
| static void |
| IOS_JoystickUpdate(SDL_Joystick * joystick) |
| { |
| SDL_JoystickDeviceItem *device = joystick->hwdata; |
| |
| if (device == NULL) { |
| return; |
| } |
| |
| if (device->accelerometer) { |
| IOS_AccelerometerUpdate(joystick); |
| } else if (device->controller) { |
| IOS_MFIJoystickUpdate(joystick); |
| } |
| } |
| |
| static void |
| IOS_JoystickClose(SDL_Joystick * joystick) |
| { |
| SDL_JoystickDeviceItem *device = joystick->hwdata; |
| |
| if (device == NULL) { |
| return; |
| } |
| |
| device->joystick = NULL; |
| |
| @autoreleasepool { |
| #ifdef ENABLE_MFI_RUMBLE |
| if (device->rumble) { |
| SDL_RumbleContext *rumble = (__bridge SDL_RumbleContext *)device->rumble; |
| |
| [rumble cleanup]; |
| CFRelease(device->rumble); |
| device->rumble = NULL; |
| } |
| #endif /* ENABLE_MFI_RUMBLE */ |
| |
| if (device->accelerometer) { |
| #if !TARGET_OS_TV |
| [motionManager stopAccelerometerUpdates]; |
| #endif /* !TARGET_OS_TV */ |
| } else if (device->controller) { |
| #ifdef SDL_JOYSTICK_MFI |
| GCController *controller = device->controller; |
| controller.controllerPausedHandler = nil; |
| controller.playerIndex = -1; |
| #endif |
| } |
| } |
| if (device->remote) { |
| --SDL_AppleTVRemoteOpenedAsJoystick; |
| } |
| } |
| |
| static void |
| IOS_JoystickQuit(void) |
| { |
| @autoreleasepool { |
| #ifdef SDL_JOYSTICK_MFI |
| NSNotificationCenter *center = [NSNotificationCenter defaultCenter]; |
| |
| if (connectObserver) { |
| [center removeObserver:connectObserver name:GCControllerDidConnectNotification object:nil]; |
| connectObserver = nil; |
| } |
| |
| if (disconnectObserver) { |
| [center removeObserver:disconnectObserver name:GCControllerDidDisconnectNotification object:nil]; |
| disconnectObserver = nil; |
| } |
| |
| #if TARGET_OS_TV |
| SDL_DelHintCallback(SDL_HINT_APPLE_TV_REMOTE_ALLOW_ROTATION, |
| SDL_AppleTVRemoteRotationHintChanged, NULL); |
| #endif /* TARGET_OS_TV */ |
| #endif /* SDL_JOYSTICK_MFI */ |
| |
| while (deviceList != NULL) { |
| IOS_RemoveJoystickDevice(deviceList); |
| } |
| |
| #if !TARGET_OS_TV |
| motionManager = nil; |
| #endif /* !TARGET_OS_TV */ |
| } |
| |
| numjoysticks = 0; |
| } |
| |
| static SDL_bool |
| IOS_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out) |
| { |
| return SDL_FALSE; |
| } |
| |
| SDL_JoystickDriver SDL_IOS_JoystickDriver = |
| { |
| IOS_JoystickInit, |
| IOS_JoystickGetCount, |
| IOS_JoystickDetect, |
| IOS_JoystickGetDeviceName, |
| IOS_JoystickGetDevicePlayerIndex, |
| IOS_JoystickSetDevicePlayerIndex, |
| IOS_JoystickGetDeviceGUID, |
| IOS_JoystickGetDeviceInstanceID, |
| IOS_JoystickOpen, |
| IOS_JoystickRumble, |
| IOS_JoystickUpdate, |
| IOS_JoystickClose, |
| IOS_JoystickQuit, |
| IOS_JoystickGetGamepadMapping |
| }; |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
