/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2017 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see .
*/
#include
#include
#include
#include
#include
#include
#include "../../tasks/tasks_internal.h"
#import
#import
#ifndef MAX_MFI_CONTROLLERS
#define MAX_MFI_CONTROLLERS 4
#endif
enum
{
GCCONTROLLER_PLAYER_INDEX_UNSET = -1,
};
@class MFIRumbleController;
/* TODO/FIXME - static globals */
static uint32_t mfi_buttons[MAX_USERS];
static int16_t mfi_axes[MAX_USERS][4];
static uint32_t mfi_controllers[MAX_MFI_CONTROLLERS];
static MFIRumbleController *mfi_rumblers[MAX_MFI_CONTROLLERS];
static NSMutableArray *mfiControllers;
static bool mfi_inited;
static bool apple_gamecontroller_available(void)
{
#if defined(IOS)
int major, minor;
get_ios_version(&major, &minor);
if (major <= 6)
return false;
#endif
return true;
}
static void apple_gamecontroller_joypad_poll_internal(GCController *controller)
{
uint32_t slot, pause, select, l3, r3;
uint32_t *buttons;
if (!controller)
return;
slot = (uint32_t)controller.playerIndex;
/* If we have not assigned a slot to this controller yet, ignore it. */
if (slot >= MAX_USERS)
return;
buttons = &mfi_buttons[slot];
/* retain the values from the paused controller handler and pass them through */
if (@available(iOS 13, *))
{
/* The menu button can be pressed/unpressed
* like any other button in iOS 13,
* so no need to passthrough anything */
*buttons = 0;
}
else
{
/* Use the paused controller handler for iOS versions below 13 */
pause = *buttons & (1 << RETRO_DEVICE_ID_JOYPAD_START);
select = *buttons & (1 << RETRO_DEVICE_ID_JOYPAD_SELECT);
l3 = *buttons & (1 << RETRO_DEVICE_ID_JOYPAD_L3);
r3 = *buttons & (1 << RETRO_DEVICE_ID_JOYPAD_R3);
*buttons = 0 | pause | select | l3 | r3;
}
memset(mfi_axes[slot], 0, sizeof(mfi_axes[0]));
if (controller.extendedGamepad)
{
GCExtendedGamepad *gp = (GCExtendedGamepad *)controller.extendedGamepad;
*buttons |= gp.dpad.up.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_UP) : 0;
*buttons |= gp.dpad.down.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_DOWN) : 0;
*buttons |= gp.dpad.left.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_LEFT) : 0;
*buttons |= gp.dpad.right.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT) : 0;
*buttons |= gp.buttonA.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_B) : 0;
*buttons |= gp.buttonB.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_A) : 0;
*buttons |= gp.buttonX.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_Y) : 0;
*buttons |= gp.buttonY.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_X) : 0;
*buttons |= gp.leftShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L) : 0;
*buttons |= gp.rightShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R) : 0;
*buttons |= gp.leftTrigger.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L2) : 0;
*buttons |= gp.rightTrigger.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R2) : 0;
#if OSX || __IPHONE_OS_VERSION_MAX_ALLOWED >= 120100 || __TV_OS_VERSION_MAX_ALLOWED >= 120100
if (@available(iOS 12.1, macOS 10.15, *))
{
*buttons |= gp.leftThumbstickButton.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L3) : 0;
*buttons |= gp.rightThumbstickButton.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R3) : 0;
}
#endif
#if OSX || __IPHONE_OS_VERSION_MAX_ALLOWED >= 130000 || __TV_OS_VERSION_MAX_ALLOWED >= 130000
if (@available(iOS 13, tvOS 13, macOS 10.15, *))
{
/* Support "Options" button present in PS4 / XBox One controllers */
*buttons |= gp.buttonOptions.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_SELECT) : 0;
if (@available(iOS 14, tvOS 14, macOS 11, *))
*buttons |= gp.buttonHome.pressed ? (1 << RARCH_FIRST_CUSTOM_BIND) : 0;
/* Support buttons that aren't supported by older mFi controller via "hotkey" combinations:
*
* LS + Menu => Select
* LT + Menu => L3
* RT + Menu => R3
*/
if (gp.buttonMenu.pressed )
{
if (gp.leftShoulder.pressed)
*buttons |= 1 << RETRO_DEVICE_ID_JOYPAD_SELECT;
else if (gp.leftTrigger.pressed)
*buttons |= 1 << RETRO_DEVICE_ID_JOYPAD_L3;
else if (gp.rightTrigger.pressed)
*buttons |= 1 << RETRO_DEVICE_ID_JOYPAD_R3;
else
*buttons |= 1 << RETRO_DEVICE_ID_JOYPAD_START;
}
}
#endif
mfi_axes[slot][0] = gp.leftThumbstick.xAxis.value * 32767.0f;
mfi_axes[slot][1] = gp.leftThumbstick.yAxis.value * 32767.0f;
mfi_axes[slot][2] = gp.rightThumbstick.xAxis.value * 32767.0f;
mfi_axes[slot][3] = gp.rightThumbstick.yAxis.value * 32767.0f;
}
/* GCGamepad is deprecated */
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated"
else if (controller.gamepad)
{
GCGamepad *gp = (GCGamepad *)controller.gamepad;
*buttons |= gp.dpad.up.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_UP) : 0;
*buttons |= gp.dpad.down.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_DOWN) : 0;
*buttons |= gp.dpad.left.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_LEFT) : 0;
*buttons |= gp.dpad.right.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT) : 0;
*buttons |= gp.buttonA.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_B) : 0;
*buttons |= gp.buttonB.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_A) : 0;
*buttons |= gp.buttonX.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_Y) : 0;
*buttons |= gp.buttonY.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_X) : 0;
*buttons |= gp.leftShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L) : 0;
*buttons |= gp.rightShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R) : 0;
}
#pragma clang diagnostic pop
}
static void apple_gamecontroller_joypad_poll(void)
{
if (!apple_gamecontroller_available())
return;
for (GCController *controller in [GCController controllers])
apple_gamecontroller_joypad_poll_internal(controller);
}
static void apple_gamecontroller_joypad_register(GCController *controller)
{
#ifdef __IPHONE_14_0
/* Don't let tvOS or iOS do anything with **our** buttons!!
* iOS will start a screen recording if you hold or doubleclick
* the OPTIONS button, we don't want that. */
if (@available(iOS 14.0, tvOS 14.0, macOS 10.15, *))
{
GCExtendedGamepad *gp = (GCExtendedGamepad *)controller.extendedGamepad;
gp.buttonOptions.preferredSystemGestureState = GCSystemGestureStateDisabled;
gp.buttonMenu.preferredSystemGestureState = GCSystemGestureStateDisabled;
if (@available(macOS 11, *))
gp.buttonHome.preferredSystemGestureState = GCSystemGestureStateDisabled;
}
#endif
/* controllerPausedHandler is deprecated in favor
* of being able to deal with the menu
* button as any other button */
if (@available(iOS 13, *))
return;
/* GCGamepad is deprecated */
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated"
{
controller.controllerPausedHandler = ^(GCController *controller)
{
uint32_t slot = (uint32_t)controller.playerIndex;
/* Support buttons that aren't supported by the mFi
* controller via "hotkey" combinations:
*
* LS + Menu => Select
* LT + Menu => L3
* RT + Menu => R3
* Note that these are just button presses, and it
* does not simulate holding down the button
*/
if ( controller.gamepad.leftShoulder.pressed
|| controller.extendedGamepad.leftShoulder.pressed )
{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_START);
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_L);
mfi_buttons[slot] |= (1 << RETRO_DEVICE_ID_JOYPAD_SELECT);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_SELECT);
});
return;
}
if (controller.extendedGamepad.leftTrigger.pressed )
{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_L2);
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_START);
mfi_buttons[slot] |= (1 << RETRO_DEVICE_ID_JOYPAD_L3);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_L3);
});
return;
}
if (controller.extendedGamepad.rightTrigger.pressed )
{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_R2);
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_START);
mfi_buttons[slot] |= (1 << RETRO_DEVICE_ID_JOYPAD_R3);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_R3);
});
return;
}
mfi_buttons[slot] |= (1 << RETRO_DEVICE_ID_JOYPAD_START);
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_START);
});
};
}
#pragma clang diagnostic pop
}
static void mfi_joypad_autodetect_add(unsigned autoconf_pad)
{
input_autoconfigure_connect("mFi Controller", NULL, mfi_joypad.ident, autoconf_pad, 0, 0);
}
#define MFI_RUMBLE_AVAIL API_AVAILABLE(macos(11.0), ios(14.0), tvos(14.0))
@interface MFIRumbleController : NSObject
@property (nonatomic, strong, readonly) GCController *controller;
@property (nonatomic, strong) CHHapticEngine *engine MFI_RUMBLE_AVAIL;
@property (nonatomic, strong, readonly) id strongPlayer MFI_RUMBLE_AVAIL;
@property (nonatomic, strong, readonly) id weakPlayer MFI_RUMBLE_AVAIL;
@end
@implementation MFIRumbleController
@synthesize strongPlayer = _strongPlayer;
@synthesize weakPlayer = _weakPlayer;
- (instancetype)initWithController:(GCController*)controller MFI_RUMBLE_AVAIL
{
if (self = [super init])
{
if (!controller.haptics)
return self;
_controller = controller;
[self setupEngine];
if (!self.engine)
return self;
_strongPlayer = [self createPlayerWithSharpness:1.0f];
_weakPlayer = [self createPlayerWithSharpness:0.5f];
}
return self;
}
- (void)setupEngine MFI_RUMBLE_AVAIL
{
if (self.engine)
return;
if (!self.controller)
return;
CHHapticEngine *engine = [self.controller.haptics createEngineWithLocality:GCHapticsLocalityDefault];
NSError *error;
[engine startAndReturnError:&error];
if (error)
return;
self.engine = engine;
__weak MFIRumbleController *weakSelf = self;
self.engine.stoppedHandler = ^(CHHapticEngineStoppedReason stoppedReason) {
MFIRumbleController *strongSelf = weakSelf;
if (!strongSelf)
return;
[strongSelf shutdown];
};
self.engine.resetHandler = ^{
MFIRumbleController *strongSelf = weakSelf;
if (!strongSelf)
return;
[strongSelf.engine startAndReturnError:nil];
};
}
- (id)createPlayerWithSharpness:(float)sharpness MFI_RUMBLE_AVAIL
{
if (!self.controller)
return nil;
[self setupEngine];
if (!self.engine)
return nil;
CHHapticEventParameter *sharp, *intense;
CHHapticEvent *event;
CHHapticPattern *pattern;
NSError *error;
sharp = [[CHHapticEventParameter alloc]
initWithParameterID:CHHapticEventParameterIDHapticSharpness
value:sharpness];
intense = [[CHHapticEventParameter alloc]
initWithParameterID:CHHapticEventParameterIDHapticIntensity
value:1.0f];
event = [[CHHapticEvent alloc]
initWithEventType:CHHapticEventTypeHapticContinuous
parameters:[NSArray arrayWithObjects:sharp, intense, nil]
relativeTime:0
duration:GCHapticDurationInfinite];
pattern = [[CHHapticPattern alloc]
initWithEvents:[NSArray arrayWithObject:event]
parameters:[[NSArray alloc] init]
error:&error];
if (error)
return nil;
id player = [self.engine createPlayerWithPattern:pattern error:&error];
if (error)
return nil;
[player stopAtTime:0 error:&error];
return player;
}
- (id)strongPlayer
{
_strongPlayer = _strongPlayer ?: [self createPlayerWithSharpness:1.0];
return _strongPlayer;
}
- (id)weakPlayer
{
_weakPlayer = _weakPlayer ?: [self createPlayerWithSharpness:0.5f];
return _weakPlayer;
}
- (void)shutdown
{
if (@available(iOS 14, tvOS 14, macOS 11, *)) {
_weakPlayer = nil;
_strongPlayer = nil;
self.engine = nil;
}
}
@end
static void apple_gamecontroller_joypad_setup_haptics(GCController *controller)
{
if (@available(iOS 14, tvOS 14, macOS 11, *)) {
mfi_rumblers[controller.playerIndex] = [[MFIRumbleController alloc] initWithController:controller];
}
}
static void apple_gamecontroller_joypad_connect(GCController *controller)
{
signed desired_index = (int32_t)controller.playerIndex;
desired_index = (desired_index >= 0 && desired_index < MAX_MFI_CONTROLLERS)
? desired_index : 0;
/* prevent same controller getting set twice */
if ([mfiControllers containsObject:controller])
return;
if (mfi_controllers[desired_index] != (uint32_t)controller.hash)
{
/* desired slot is unused, take it */
if (!mfi_controllers[desired_index])
{
controller.playerIndex = desired_index;
mfi_controllers[desired_index] = (uint32_t)controller.hash;
}
else
{
/* find a new slot for this controller that's unused */
unsigned i;
for (i = 0; i < MAX_MFI_CONTROLLERS; ++i)
{
if (mfi_controllers[i])
continue;
mfi_controllers[i] = (uint32_t)controller.hash;
controller.playerIndex = i;
break;
}
}
[mfiControllers addObject:controller];
/* Move any non-game controllers (like the siri remote) to the end */
if (mfiControllers.count > 1)
{
int newPlayerIndex = 0;
NSInteger connectedNonGameControllerIndex = NSNotFound;
NSUInteger index = 0;
for (GCController *connectedController in mfiControllers)
{
if ( connectedController.microGamepad != nil
&& connectedController.extendedGamepad == nil )
connectedNonGameControllerIndex = index;
index++;
}
if (connectedNonGameControllerIndex != NSNotFound)
{
GCController *nonGameController = [mfiControllers objectAtIndex:connectedNonGameControllerIndex];
[mfiControllers removeObjectAtIndex:connectedNonGameControllerIndex];
[mfiControllers addObject:nonGameController];
}
for (GCController *gc in mfiControllers)
gc.playerIndex = newPlayerIndex++;
}
apple_gamecontroller_joypad_register(controller);
apple_gamecontroller_joypad_setup_haptics(controller);
mfi_joypad_autodetect_add((unsigned)controller.playerIndex);
}
}
static void apple_gamecontroller_joypad_disconnect(GCController* controller)
{
signed pad = (int32_t)controller.playerIndex;
if (pad == GCCONTROLLER_PLAYER_INDEX_UNSET)
return;
mfi_rumblers[pad] = nil;
mfi_controllers[pad] = 0;
if ([mfiControllers containsObject:controller])
{
[mfiControllers removeObject:controller];
input_autoconfigure_disconnect(pad, mfi_joypad.ident);
}
}
void *apple_gamecontroller_joypad_init(void *data)
{
if (mfi_inited)
return (void*)-1;
if (!apple_gamecontroller_available())
return NULL;
mfiControllers = [[NSMutableArray alloc] initWithCapacity:MAX_MFI_CONTROLLERS];
#ifdef __IPHONE_7_0
[[NSNotificationCenter defaultCenter] addObserverForName:GCControllerDidConnectNotification
object:nil
queue:[NSOperationQueue mainQueue]
usingBlock:^(NSNotification *note)
{
apple_gamecontroller_joypad_connect([note object]);
}];
[[NSNotificationCenter defaultCenter] addObserverForName:GCControllerDidDisconnectNotification
object:nil
queue:[NSOperationQueue mainQueue]
usingBlock:^(NSNotification *note)
{
apple_gamecontroller_joypad_disconnect([note object]);
} ];
#endif
mfi_inited = true;
return (void*)-1;
}
static void apple_gamecontroller_joypad_destroy(void) { }
static int32_t apple_gamecontroller_joypad_button(
unsigned port, uint16_t joykey)
{
if (port >= DEFAULT_MAX_PADS)
return 0;
/* Check hat. */
else if (GET_HAT_DIR(joykey))
return 0;
else if (joykey < 32)
return ((mfi_buttons[port] & (1 << joykey)) != 0);
return 0;
}
static void apple_gamecontroller_joypad_get_buttons(unsigned port,
input_bits_t *state)
{
BITS_COPY16_PTR(state, mfi_buttons[port]);
}
static int16_t apple_gamecontroller_joypad_axis(
unsigned port, uint32_t joyaxis)
{
if (AXIS_NEG_GET(joyaxis) < 4)
{
int16_t val = 0;
int16_t axis = AXIS_NEG_GET(joyaxis);
if (axis >= 0 && axis < 4)
if ((val = mfi_axes[port][axis]) < 0)
return val;
}
else if(AXIS_POS_GET(joyaxis) < 4)
{
int16_t val = 0;
int16_t axis = AXIS_POS_GET(joyaxis);
if (axis >= 0 && axis < 4)
if ((val = mfi_axes[port][axis]) > 0)
return val;
}
return 0;
}
static int16_t apple_gamecontroller_joypad_state(
rarch_joypad_info_t *joypad_info,
const struct retro_keybind *binds,
unsigned port)
{
unsigned i;
int16_t ret = 0;
uint16_t port_idx = joypad_info->joy_idx;
if (port_idx >= DEFAULT_MAX_PADS)
return 0;
for (i = 0; i < RARCH_FIRST_CUSTOM_BIND; i++)
{
/* Auto-binds are per joypad, not per user. */
const uint64_t joykey = (binds[i].joykey != NO_BTN)
? binds[i].joykey : joypad_info->auto_binds[i].joykey;
const uint32_t joyaxis = (binds[i].joyaxis != AXIS_NONE)
? binds[i].joyaxis : joypad_info->auto_binds[i].joyaxis;
if ( (uint16_t)joykey != NO_BTN
&& !GET_HAT_DIR(i)
&& (i < 32)
&& ((mfi_buttons[port_idx] & (1 << i)) != 0)
)
ret |= ( 1 << i);
else if (joyaxis != AXIS_NONE &&
((float)abs(apple_gamecontroller_joypad_axis(port_idx, joyaxis))
/ 0x8000) > joypad_info->axis_threshold)
ret |= (1 << i);
}
return ret;
}
static bool apple_gamecontroller_joypad_set_rumble(unsigned pad,
enum retro_rumble_effect type, uint16_t strength)
{
NSError *error;
if (pad >= MAX_MFI_CONTROLLERS)
return false;
if (@available(iOS 14, tvOS 14, macOS 11, *)) {
MFIRumbleController *rumble = mfi_rumblers[pad];
if (!rumble)
return false;
id player = (type == RETRO_RUMBLE_STRONG ? rumble.strongPlayer : rumble.weakPlayer);
if (!player)
return false;
if (strength == 0)
[player stopAtTime:0 error:&error];
else
{
float str = (float)strength / 65535.0f;
CHHapticDynamicParameter *param = [[CHHapticDynamicParameter alloc]
initWithParameterID:CHHapticDynamicParameterIDHapticIntensityControl
value:str
relativeTime:0];
[player sendParameters:[NSArray arrayWithObject:param] atTime:0 error:&error];
if (!error)
[player startAtTime:0 error:&error];
}
return error;
} else {
return false;
}
}
static bool apple_gamecontroller_joypad_query_pad(unsigned pad)
{
return pad < MAX_USERS;
}
static const char *apple_gamecontroller_joypad_name(unsigned pad)
{
if (pad >= MAX_USERS)
return NULL;
return "mFi Controller";
}
input_device_driver_t mfi_joypad = {
apple_gamecontroller_joypad_init,
apple_gamecontroller_joypad_query_pad,
apple_gamecontroller_joypad_destroy,
apple_gamecontroller_joypad_button,
apple_gamecontroller_joypad_state,
apple_gamecontroller_joypad_get_buttons,
apple_gamecontroller_joypad_axis,
apple_gamecontroller_joypad_poll,
apple_gamecontroller_joypad_set_rumble,
NULL,
apple_gamecontroller_joypad_name,
"mfi",
};