mirror of
https://github.com/libretro/RetroArch.git
synced 2024-12-13 20:33:22 +00:00
334 lines
9.1 KiB
C
334 lines
9.1 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - 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 "../input_driver.h"
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#include "../../tasks/tasks_internal.h"
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typedef struct
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{
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XINPUT_STATE xstate;
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bool connected;
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} xinput_joypad_state;
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static xinput_joypad_state g_xinput_states[MAX_PADS];
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#ifdef _XBOX1
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static HANDLE gamepads[MAX_PADS];
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#endif
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static const char* const XBOX_CONTROLLER_NAMES[4] =
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{
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"XInput Controller (User 1)",
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"XInput Controller (User 2)",
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"XInput Controller (User 3)",
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"XInput Controller (User 4)"
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};
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static const char *xdk_joypad_name(unsigned pad)
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{
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return XBOX_CONTROLLER_NAMES[pad];
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}
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static void xdk_joypad_autodetect_add(unsigned autoconf_pad)
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{
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if (!input_autoconfigure_connect(
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xdk_joypad_name(autoconf_pad),
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NULL,
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xdk_joypad.ident,
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autoconf_pad,
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0,
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0))
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input_config_set_device_name(autoconf_pad, xdk_joypad_name(autoconf_pad));
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}
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static bool xdk_joypad_init(void *data)
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{
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#ifdef _XBOX1
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XInitDevices(0, NULL);
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#else
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unsigned autoconf_pad;
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for (autoconf_pad = 0; autoconf_pad < MAX_USERS; autoconf_pad++)
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xdk_joypad_autodetect_add(autoconf_pad);
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#endif
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(void)data;
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return true;
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}
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#ifndef _XBOX1
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/* Buttons are provided by XInput as bits of a uint16.
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* Map from rarch button index (0..10) to a mask to bitwise-& the buttons against.
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* dpad is handled seperately. */
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static const uint16_t button_index_to_bitmap_code[] = {
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XINPUT_GAMEPAD_A,
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XINPUT_GAMEPAD_B,
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XINPUT_GAMEPAD_X,
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XINPUT_GAMEPAD_Y,
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XINPUT_GAMEPAD_LEFT_SHOULDER,
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XINPUT_GAMEPAD_RIGHT_SHOULDER,
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XINPUT_GAMEPAD_START,
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XINPUT_GAMEPAD_BACK,
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XINPUT_GAMEPAD_LEFT_THUMB,
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XINPUT_GAMEPAD_RIGHT_THUMB
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};
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#endif
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static bool xdk_joypad_button(unsigned port_num, uint16_t joykey)
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{
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uint16_t btn_word = 0;
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unsigned hat_dir = 0;
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if (port_num >= MAX_PADS)
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return false;
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btn_word = g_xinput_states[port_num].xstate.Gamepad.wButtons;
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hat_dir = GET_HAT_DIR(joykey);
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if (hat_dir)
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{
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switch (hat_dir)
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{
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case HAT_UP_MASK:
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return btn_word & XINPUT_GAMEPAD_DPAD_UP;
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case HAT_DOWN_MASK:
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return btn_word & XINPUT_GAMEPAD_DPAD_DOWN;
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case HAT_LEFT_MASK:
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return btn_word & XINPUT_GAMEPAD_DPAD_LEFT;
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case HAT_RIGHT_MASK:
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return btn_word & XINPUT_GAMEPAD_DPAD_RIGHT;
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}
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return false; /* hat requested and no hat button down. */
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}
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#ifdef _XBOX1
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switch (joykey)
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{
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case RETRO_DEVICE_ID_JOYPAD_A:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_B] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_B:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_A] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_Y:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_X] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_X:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_Y] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_START:
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return (g_xinput_states[port_num].xstate.Gamepad.wButtons & XINPUT_GAMEPAD_START);
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case RETRO_DEVICE_ID_JOYPAD_SELECT:
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return (g_xinput_states[port_num].xstate.Gamepad.wButtons & XINPUT_GAMEPAD_BACK);
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case RETRO_DEVICE_ID_JOYPAD_L3:
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return (g_xinput_states[port_num].xstate.Gamepad.wButtons & XINPUT_GAMEPAD_LEFT_THUMB);
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case RETRO_DEVICE_ID_JOYPAD_R3:
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return (g_xinput_states[port_num].xstate.Gamepad.wButtons & XINPUT_GAMEPAD_RIGHT_THUMB);
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case RETRO_DEVICE_ID_JOYPAD_L2:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_WHITE] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_R2:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_BLACK] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_L:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_LEFT_TRIGGER] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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case RETRO_DEVICE_ID_JOYPAD_R:
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return (g_xinput_states[port_num].xstate.Gamepad.bAnalogButtons[XINPUT_GAMEPAD_RIGHT_TRIGGER] > XINPUT_GAMEPAD_MAX_CROSSTALK);
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default:
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break;
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}
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#else
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if (joykey < 10)
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return btn_word & button_index_to_bitmap_code[joykey];
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#endif
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return false;
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}
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static int16_t xdk_joypad_axis(unsigned port_num, uint32_t joyaxis)
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{
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int val = 0;
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int axis = -1;
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bool is_neg = false;
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bool is_pos = false;
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XINPUT_GAMEPAD *pad = NULL;
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if (joyaxis == AXIS_NONE || port_num >= MAX_PADS)
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return 0;
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if (AXIS_NEG_GET(joyaxis) <= 3)
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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) <= 5)
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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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pad = &(g_xinput_states[port_num].xstate.Gamepad);
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switch (axis)
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{
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case 0:
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val = pad->sThumbLX;
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break;
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case 1:
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val = pad->sThumbLY;
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break;
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case 2:
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val = pad->sThumbRX;
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break;
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case 3:
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val = pad->sThumbRY;
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break;
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case 4:
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#ifdef _XBOX360
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val = pad->bLeftTrigger * 32767 / 255;
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#endif
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break; /* map 0..255 to 0..32767 */
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case 5:
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#ifdef _XBOX360
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val = pad->bRightTrigger * 32767 / 255;
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#endif
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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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/* Clamp to avoid warnings */
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if (val == -32768)
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val = -32767;
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return val;
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}
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static void xdk_joypad_poll(void)
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{
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unsigned port;
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#if defined(_XBOX1)
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DWORD dwInsertions, dwRemovals;
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#ifdef __cplusplus
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XGetDeviceChanges(XDEVICE_TYPE_GAMEPAD,
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reinterpret_cast<PDWORD>(&dwInsertions),
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reinterpret_cast<PDWORD>(&dwRemovals));
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#else
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XGetDeviceChanges(XDEVICE_TYPE_GAMEPAD,
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(PDWORD)&dwInsertions,
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(PDWORD)&dwRemovals);
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#endif
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#endif
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for (port = 0; port < MAX_PADS; port++)
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{
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#if defined(_XBOX1)
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bool device_removed = false;
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bool device_inserted = false;
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/* handle inserted devices. */
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/* handle removed devices. */
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if (dwRemovals & (1 << port))
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device_removed = true;
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if (dwInsertions & (1 << port))
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device_inserted = true;
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if (device_removed)
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{
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/* if the controller was removed after
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* XGetDeviceChanges but before
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* XInputOpen, the device handle will be NULL. */
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if (gamepads[port])
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XInputClose(gamepads[port]);
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gamepads[port] = 0;
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input_autoconfigure_disconnect(port, xdk_joypad.ident);
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}
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if (device_inserted)
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{
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XINPUT_POLLING_PARAMETERS m_pollingParameters;
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m_pollingParameters.fAutoPoll = FALSE;
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m_pollingParameters.fInterruptOut = TRUE;
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m_pollingParameters.bInputInterval = 8;
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m_pollingParameters.bOutputInterval = 8;
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gamepads[port] = XInputOpen(
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XDEVICE_TYPE_GAMEPAD, port,
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XDEVICE_NO_SLOT, &m_pollingParameters);
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xdk_joypad_autodetect_add(port);
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}
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if (!gamepads[port])
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continue;
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/* if the controller is removed after
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* XGetDeviceChanges but before XInputOpen,
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* the device handle will be NULL. */
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if (XInputPoll(gamepads[port]) != ERROR_SUCCESS)
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continue;
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#endif
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memset(&g_xinput_states[port], 0, sizeof(xinput_joypad_state));
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g_xinput_states[port].connected = !
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(XInputGetState(
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#ifdef _XBOX1
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gamepads[port]
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#else
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port
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#endif
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, &g_xinput_states[port].xstate) == ERROR_DEVICE_NOT_CONNECTED);
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}
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}
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static bool xdk_joypad_query_pad(unsigned pad)
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{
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return pad < MAX_USERS && g_xinput_states[pad].connected;
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}
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static void xdk_joypad_destroy(void)
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{
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unsigned i;
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for (i = 0; i < MAX_PADS; i++)
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{
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memset(&g_xinput_states[i], 0, sizeof(xinput_joypad_state));
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#if defined(_XBOX1)
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if (gamepads[i])
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XInputClose(gamepads[i]);
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gamepads[i] = 0;
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#endif
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}
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}
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input_device_driver_t xdk_joypad = {
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xdk_joypad_init,
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xdk_joypad_query_pad,
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xdk_joypad_destroy,
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xdk_joypad_button,
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NULL,
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xdk_joypad_axis,
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xdk_joypad_poll,
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NULL,
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xdk_joypad_name,
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"xdk",
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};
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