mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-25 00:49:47 +00:00
299 lines
9.6 KiB
Objective-C
299 lines
9.6 KiB
Objective-C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include <unistd.h>
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#include <string.h>
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#include <limits.h>
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#include <errno.h>
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#include <boolean.h>
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#include <AvailabilityMacros.h>
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#import "../include/GameController/GameController.h"
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#ifndef MAX_MFI_CONTROLLERS
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#define MAX_MFI_CONTROLLERS 4
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#endif
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static uint32_t mfi_buttons[MAX_USERS];
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static int16_t mfi_axes[MAX_USERS][4];
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static uint32_t mfi_controllers[MAX_MFI_CONTROLLERS];
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enum
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{
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GCCONTROLLER_PLAYER_INDEX_UNSET = -1,
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};
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static bool apple_gamecontroller_available(void)
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{
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int major, minor;
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get_ios_version(&major, &minor);
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if (major <= 6)
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return false;
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return true;
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}
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static void apple_gamecontroller_joypad_poll_internal(GCController *controller)
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{
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uint32_t slot, pause;
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uint32_t *buttons;
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if (!controller)
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return;
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slot = (uint32_t)controller.playerIndex;
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buttons = &mfi_buttons[slot];
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/* retain the start (pause) value */
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pause = *buttons & (1 << RETRO_DEVICE_ID_JOYPAD_START);
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*buttons = 0 | pause;
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memset(mfi_axes[slot], 0, sizeof(mfi_axes[0]));
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if (controller.extendedGamepad)
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{
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GCExtendedGamepad *gp = (GCExtendedGamepad *)controller.extendedGamepad;
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*buttons |= gp.dpad.up.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_UP) : 0;
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*buttons |= gp.dpad.down.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_DOWN) : 0;
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*buttons |= gp.dpad.left.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_LEFT) : 0;
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*buttons |= gp.dpad.right.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT) : 0;
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*buttons |= gp.buttonA.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_B) : 0;
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*buttons |= gp.buttonB.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_A) : 0;
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*buttons |= gp.buttonX.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_Y) : 0;
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*buttons |= gp.buttonY.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_X) : 0;
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*buttons |= gp.leftShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L) : 0;
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*buttons |= gp.rightShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R) : 0;
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*buttons |= gp.leftTrigger.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L2) : 0;
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*buttons |= gp.rightTrigger.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R2) : 0;
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mfi_axes[slot][0] = gp.leftThumbstick.xAxis.value * 32767.0f;
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mfi_axes[slot][1] = gp.leftThumbstick.yAxis.value * 32767.0f;
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mfi_axes[slot][2] = gp.rightThumbstick.xAxis.value * 32767.0f;
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mfi_axes[slot][3] = gp.rightThumbstick.yAxis.value * 32767.0f;
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}
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else if (controller.gamepad)
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{
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GCGamepad *gp = (GCGamepad *)controller.gamepad;
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*buttons |= gp.dpad.up.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_UP) : 0;
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*buttons |= gp.dpad.down.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_DOWN) : 0;
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*buttons |= gp.dpad.left.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_LEFT) : 0;
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*buttons |= gp.dpad.right.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_RIGHT) : 0;
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*buttons |= gp.buttonA.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_B) : 0;
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*buttons |= gp.buttonB.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_A) : 0;
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*buttons |= gp.buttonX.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_Y) : 0;
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*buttons |= gp.buttonY.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_X) : 0;
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*buttons |= gp.leftShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_L) : 0;
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*buttons |= gp.rightShoulder.pressed ? (1 << RETRO_DEVICE_ID_JOYPAD_R) : 0;
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}
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}
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static void apple_gamecontroller_joypad_poll(void)
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{
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if (!apple_gamecontroller_available())
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return;
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for (GCController *controller in [GCController controllers])
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apple_gamecontroller_joypad_poll_internal(controller);
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}
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static void apple_gamecontroller_joypad_register(GCGamepad *gamepad)
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{
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gamepad.valueChangedHandler = ^(GCGamepad *updateGamepad, GCControllerElement *element) {
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apple_gamecontroller_joypad_poll_internal(updateGamepad.controller);
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};
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gamepad.controller.controllerPausedHandler = ^(GCController *controller) {
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uint32_t slot = (uint32_t)controller.playerIndex;
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mfi_buttons[slot] |= (1 << RETRO_DEVICE_ID_JOYPAD_START);
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
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mfi_buttons[slot] &= ~(1 << RETRO_DEVICE_ID_JOYPAD_START);
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});
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};
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}
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static void apple_gamecontroller_joypad_connect(GCController *controller)
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{
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signed desired_index = (int32_t)controller.playerIndex;
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desired_index = (desired_index >= 0 && desired_index < MAX_MFI_CONTROLLERS)
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? desired_index : 0;
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/* prevent same controller getting set twice */
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if (mfi_controllers[desired_index] != controller.hash)
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{
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/* desired slot is unused, take it */
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if (!mfi_controllers[desired_index])
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{
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controller.playerIndex = desired_index;
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mfi_controllers[desired_index] = controller.hash;
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}
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else
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{
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/* find a new slot for this controller that's unused */
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unsigned i;
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for (i = 0; i < MAX_MFI_CONTROLLERS; ++i)
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{
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if (mfi_controllers[i])
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continue;
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mfi_controllers[i] = controller.hash;
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controller.playerIndex = i;
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break;
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}
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}
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apple_gamecontroller_joypad_register(controller.gamepad);
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}
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}
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static void apple_gamecontroller_joypad_disconnect(GCController* controller)
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{
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signed pad = (int32_t)controller.playerIndex;
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if (pad == GCCONTROLLER_PLAYER_INDEX_UNSET)
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return;
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mfi_controllers[pad] = 0;
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}
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bool apple_gamecontroller_joypad_init(void *data)
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{
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static bool inited = false;
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if (inited)
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return true;
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if (!apple_gamecontroller_available())
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return false;
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#ifdef __IPHONE_7_0
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[[NSNotificationCenter defaultCenter] addObserverForName:GCControllerDidConnectNotification
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object:nil
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queue:[NSOperationQueue mainQueue]
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usingBlock:^(NSNotification *note) {
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apple_gamecontroller_joypad_connect([note object]);
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}];
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[[NSNotificationCenter defaultCenter] addObserverForName:GCControllerDidDisconnectNotification
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object:nil
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queue:[NSOperationQueue mainQueue]
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usingBlock:^(NSNotification *note) {
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apple_gamecontroller_joypad_disconnect([note object]);
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} ];
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#endif
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return true;
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}
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static void apple_gamecontroller_joypad_destroy(void)
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{
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}
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static bool apple_gamecontroller_joypad_button(unsigned port, uint16_t joykey)
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{
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if (joykey == NO_BTN)
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return false;
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/* Check hat. */
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if (GET_HAT_DIR(joykey))
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return false;
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/* Check the button. */
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if ((port < MAX_USERS) && (joykey < 32))
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return ((mfi_buttons[port] & (1 << joykey)) != 0);
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return false;
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}
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static uint64_t apple_gamecontroller_joypad_get_buttons(unsigned port)
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{
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return mfi_buttons[port];
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}
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static int16_t apple_gamecontroller_joypad_axis(unsigned port, uint32_t joyaxis)
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{
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int16_t val = 0;
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int16_t axis = -1;
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bool is_neg = false;
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bool is_pos = false;
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if (joyaxis == AXIS_NONE)
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return 0;
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if (AXIS_NEG_GET(joyaxis) < 4)
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{
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axis = AXIS_NEG_GET(joyaxis);
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is_neg = true;
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}
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else if(AXIS_POS_GET(joyaxis) < 4)
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{
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axis = AXIS_POS_GET(joyaxis);
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is_pos = true;
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}
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switch (axis)
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{
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case 0:
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val = mfi_axes[port][0];
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break;
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case 1:
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val = mfi_axes[port][1];
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break;
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case 2:
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val = mfi_axes[port][2];
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break;
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case 3:
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val = mfi_axes[port][3];
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break;
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}
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if (is_neg && val > 0)
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val = 0;
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else if (is_pos && val < 0)
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val = 0;
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return val;
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}
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static bool apple_gamecontroller_joypad_query_pad(unsigned pad)
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{
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return pad < MAX_USERS;
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}
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static const char *apple_gamecontroller_joypad_name(unsigned pad)
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{
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if (pad >= MAX_USERS)
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return NULL;
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return "MFi pad";
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}
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input_device_driver_t mfi_joypad = {
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apple_gamecontroller_joypad_init,
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apple_gamecontroller_joypad_query_pad,
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apple_gamecontroller_joypad_destroy,
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apple_gamecontroller_joypad_button,
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apple_gamecontroller_joypad_get_buttons,
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apple_gamecontroller_joypad_axis,
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apple_gamecontroller_joypad_poll,
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NULL,
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apple_gamecontroller_joypad_name,
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"mfi",
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};
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