mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-14 14:28:47 +00:00
576 lines
15 KiB
C
576 lines
15 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
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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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#ifdef _MSC_VER
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#pragma comment(lib, "dinput8")
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#endif
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#undef DIRECTINPUT_VERSION
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#define DIRECTINPUT_VERSION 0x0800
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#include <dinput.h>
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#include "../general.h"
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#include "../boolean.h"
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#include "input_common.h"
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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// Context has to be global as joypads also ride on this context.
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static LPDIRECTINPUT8 g_ctx;
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struct dinput_input
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{
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LPDIRECTINPUTDEVICE8 keyboard;
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LPDIRECTINPUTDEVICE8 mouse;
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const rarch_joypad_driver_t *joypad;
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uint8_t state[256];
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int mouse_rel_x;
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int mouse_rel_y;
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int mouse_x;
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int mouse_y;
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bool mouse_l, mouse_r, mouse_m;
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};
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struct dinput_joypad
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{
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LPDIRECTINPUTDEVICE8 joypad;
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DIJOYSTATE2 joy_state;
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};
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static unsigned g_joypad_cnt;
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static struct dinput_joypad g_pads[MAX_PLAYERS];
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static void dinput_destroy_context(void)
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{
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if (g_ctx)
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{
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IDirectInput8_Release(g_ctx);
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g_ctx = NULL;
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}
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}
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static bool dinput_init_context(void)
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{
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if (g_ctx)
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return true;
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if (driver.display_type != RARCH_DISPLAY_WIN32)
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{
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RARCH_ERR("Cannot open DInput as no Win32 window is present.\n");
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return false;
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}
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CoInitialize(NULL);
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// Who said we shouldn't have same call signature in a COM API? <_<
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#ifdef __cplusplus
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if (FAILED(DirectInput8Create(
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GetModuleHandle(NULL), DIRECTINPUT_VERSION, IID_IDirectInput8,
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(void**)&g_ctx, NULL)))
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#else
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if (FAILED(DirectInput8Create(
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GetModuleHandle(NULL), DIRECTINPUT_VERSION, &IID_IDirectInput8,
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(void**)&g_ctx, NULL)))
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#endif
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{
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RARCH_ERR("Failed to init DirectInput.\n");
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return false;
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}
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return true;
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}
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static void *dinput_init(void)
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{
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if (!dinput_init_context())
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return NULL;
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struct dinput_input *di = (struct dinput_input*)calloc(1, sizeof(*di));
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if (!di)
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return NULL;
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#ifdef __cplusplus
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, GUID_SysKeyboard, &di->keyboard, NULL)))
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goto error;
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, GUID_SysMouse, &di->mouse, NULL)))
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goto error;
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#else
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, &GUID_SysKeyboard, &di->keyboard, NULL)))
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goto error;
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, &GUID_SysMouse, &di->mouse, NULL)))
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goto error;
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#endif
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IDirectInputDevice8_SetDataFormat(di->keyboard, &c_dfDIKeyboard);
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IDirectInputDevice8_SetCooperativeLevel(di->keyboard,
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(HWND)driver.video_window, DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
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IDirectInputDevice8_Acquire(di->keyboard);
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IDirectInputDevice8_SetDataFormat(di->mouse, &c_dfDIMouse2);
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IDirectInputDevice8_SetCooperativeLevel(di->mouse, (HWND)driver.video_window,
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DISCL_NONEXCLUSIVE | DISCL_FOREGROUND);
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IDirectInputDevice8_Acquire(di->mouse);
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input_init_keyboard_lut(rarch_key_map_dinput);
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di->joypad = input_joypad_init_driver(g_settings.input.joypad_driver);
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return di;
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error:
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dinput_destroy_context();
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free(di);
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return NULL;
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}
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static void dinput_poll(void *data)
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{
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struct dinput_input *di = (struct dinput_input*)data;
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memset(di->state, 0, sizeof(di->state));
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if (FAILED(IDirectInputDevice8_GetDeviceState(di->keyboard, sizeof(di->state), di->state)))
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{
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IDirectInputDevice8_Acquire(di->keyboard);
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if (FAILED(IDirectInputDevice8_GetDeviceState(di->keyboard, sizeof(di->state), di->state)))
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memset(di->state, 0, sizeof(di->state));
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}
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DIMOUSESTATE2 mouse_state;
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memset(&mouse_state, 0, sizeof(mouse_state));
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if (FAILED(IDirectInputDevice8_GetDeviceState(di->mouse, sizeof(mouse_state), &mouse_state)))
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{
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IDirectInputDevice8_Acquire(di->mouse);
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if (FAILED(IDirectInputDevice8_GetDeviceState(di->mouse, sizeof(mouse_state), &mouse_state)))
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memset(&mouse_state, 0, sizeof(mouse_state));
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}
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di->mouse_rel_x = mouse_state.lX;
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di->mouse_rel_y = mouse_state.lY;
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di->mouse_l = mouse_state.rgbButtons[0];
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di->mouse_r = mouse_state.rgbButtons[1];
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di->mouse_m = mouse_state.rgbButtons[2];
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// No simple way to get absolute coordinates for RETRO_DEVICE_POINTER. Just use Win32 APIs.
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POINT point = {0};
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GetCursorPos(&point);
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ScreenToClient((HWND)driver.video_window, &point);
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di->mouse_x = point.x;
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di->mouse_y = point.y;
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input_joypad_poll(di->joypad);
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}
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static bool dinput_keyboard_pressed(struct dinput_input *di, unsigned key)
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{
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if (key >= RETROK_LAST)
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return false;
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unsigned sym = input_translate_rk_to_keysym((enum retro_key)key);
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return di->state[sym] & 0x80;
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}
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static bool dinput_is_pressed(struct dinput_input *di, const struct retro_keybind *binds,
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unsigned port, unsigned id)
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{
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if (id >= RARCH_BIND_LIST_END)
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return false;
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const struct retro_keybind *bind = &binds[id];
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return dinput_keyboard_pressed(di, bind->key) || input_joypad_pressed(di->joypad, port, binds, id);
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}
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static bool dinput_key_pressed(void *data, int key)
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{
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return dinput_is_pressed((struct dinput_input*)data, g_settings.input.binds[0], 0, key);
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}
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static int16_t dinput_lightgun_state(struct dinput_input *di, unsigned id)
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{
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switch (id)
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{
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case RETRO_DEVICE_ID_LIGHTGUN_X:
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return di->mouse_rel_x;
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case RETRO_DEVICE_ID_LIGHTGUN_Y:
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return di->mouse_rel_y;
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case RETRO_DEVICE_ID_LIGHTGUN_TRIGGER:
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return di->mouse_l;
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case RETRO_DEVICE_ID_LIGHTGUN_CURSOR:
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return di->mouse_m;
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case RETRO_DEVICE_ID_LIGHTGUN_TURBO:
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return di->mouse_r;
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case RETRO_DEVICE_ID_LIGHTGUN_START:
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return di->mouse_m && di->mouse_r;
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case RETRO_DEVICE_ID_LIGHTGUN_PAUSE:
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return di->mouse_m && di->mouse_l;
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default:
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return 0;
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}
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}
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static int16_t dinput_mouse_state(struct dinput_input *di, unsigned id)
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{
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switch (id)
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{
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case RETRO_DEVICE_ID_MOUSE_X:
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return di->mouse_rel_x;
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case RETRO_DEVICE_ID_MOUSE_Y:
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return di->mouse_rel_y;
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case RETRO_DEVICE_ID_MOUSE_LEFT:
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return di->mouse_l;
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case RETRO_DEVICE_ID_MOUSE_RIGHT:
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return di->mouse_r;
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default:
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return 0;
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}
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}
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static int16_t dinput_pointer_state(struct dinput_input *di, unsigned index, unsigned id, bool screen)
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{
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if (index != 0)
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return 0;
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int16_t res_x = 0, res_y = 0, res_screen_x = 0, res_screen_y = 0;
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bool valid = input_translate_coord_viewport(di->mouse_x, di->mouse_y,
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&res_x, &res_y, &res_screen_x, &res_screen_y);
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if (!valid)
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return 0;
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if (screen)
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{
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res_x = res_screen_x;
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res_y = res_screen_y;
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}
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bool inside = (res_x >= -0x7fff) && (res_y >= -0x7fff);
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if (!inside)
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return 0;
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switch (id)
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{
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case RETRO_DEVICE_ID_POINTER_X:
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return res_x;
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case RETRO_DEVICE_ID_POINTER_Y:
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return res_y;
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case RETRO_DEVICE_ID_POINTER_PRESSED:
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return di->mouse_l;
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default:
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return 0;
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}
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}
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static int16_t dinput_input_state(void *data,
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const struct retro_keybind **binds, unsigned port,
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unsigned device, unsigned index, unsigned id)
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{
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struct dinput_input *di = (struct dinput_input*)data;
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switch (device)
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{
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case RETRO_DEVICE_JOYPAD:
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return dinput_is_pressed(di, binds[port], port, id);
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case RETRO_DEVICE_KEYBOARD:
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return dinput_keyboard_pressed(di, id);
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case RETRO_DEVICE_ANALOG:
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return input_joypad_analog(di->joypad, port, index, id, g_settings.input.binds[port]);
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case RETRO_DEVICE_MOUSE:
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return dinput_mouse_state(di, id);
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case RETRO_DEVICE_POINTER:
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case RARCH_DEVICE_POINTER_SCREEN:
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return dinput_pointer_state(di, index, id, device == RARCH_DEVICE_POINTER_SCREEN);
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case RETRO_DEVICE_LIGHTGUN:
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return dinput_lightgun_state(di, id);
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default:
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return 0;
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}
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}
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static void dinput_free(void *data)
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{
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struct dinput_input *di = (struct dinput_input*)data;
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LPDIRECTINPUT8 hold_ctx = g_ctx;
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if (di)
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{
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g_ctx = NULL; // Prevent a joypad driver to kill our context prematurely.
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di->joypad->destroy();
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g_ctx = hold_ctx;
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if (di->keyboard)
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IDirectInputDevice8_Release(di->keyboard);
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if (di->mouse)
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IDirectInputDevice8_Release(di->mouse);
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free(di);
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}
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dinput_destroy_context();
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}
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static void dinput_grab_mouse(void *data, bool state)
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{
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struct dinput_input *di = (struct dinput_input*)data;
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IDirectInputDevice8_Unacquire(di->mouse);
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IDirectInputDevice8_SetCooperativeLevel(di->mouse,
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(HWND)driver.video_window,
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state ?
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(DISCL_EXCLUSIVE | DISCL_FOREGROUND) :
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(DISCL_NONEXCLUSIVE | DISCL_FOREGROUND));
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IDirectInputDevice8_Acquire(di->mouse);
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}
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const input_driver_t input_dinput = {
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dinput_init,
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dinput_poll,
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dinput_input_state,
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dinput_key_pressed,
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dinput_free,
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NULL,
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"dinput",
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dinput_grab_mouse,
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};
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static void dinput_joypad_destroy(void)
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{
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for (unsigned i = 0; i < MAX_PLAYERS; i++)
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{
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if (g_pads[i].joypad)
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{
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IDirectInputDevice8_Unacquire(g_pads[i].joypad);
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IDirectInputDevice8_Release(g_pads[i].joypad);
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}
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}
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g_joypad_cnt = 0;
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memset(g_pads, 0, sizeof(g_pads));
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// Can be blocked by global Dinput context.
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dinput_destroy_context();
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}
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static BOOL CALLBACK enum_axes_cb(const DIDEVICEOBJECTINSTANCE *inst, void *p)
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{
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LPDIRECTINPUTDEVICE8 joypad = (LPDIRECTINPUTDEVICE8)p;
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DIPROPRANGE range;
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memset(&range, 0, sizeof(range));
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range.diph.dwSize = sizeof(DIPROPRANGE);
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range.diph.dwHeaderSize = sizeof(DIPROPHEADER);
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range.diph.dwHow = DIPH_BYID;
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range.diph.dwObj = inst->dwType;
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range.lMin = -0x7fff;
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range.lMax = 0x7fff;
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IDirectInputDevice8_SetProperty(joypad, DIPROP_RANGE, &range.diph);
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return DIENUM_CONTINUE;
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}
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static BOOL CALLBACK enum_joypad_cb(const DIDEVICEINSTANCE *inst, void *p)
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{
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(void)p;
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if (g_joypad_cnt == MAX_PLAYERS)
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return DIENUM_STOP;
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LPDIRECTINPUTDEVICE8 *pad = &g_pads[g_joypad_cnt].joypad;
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#ifdef __cplusplus
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, inst->guidInstance, pad, NULL)))
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#else
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if (FAILED(IDirectInput8_CreateDevice(g_ctx, &inst->guidInstance, pad, NULL)))
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#endif
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return DIENUM_CONTINUE;
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IDirectInputDevice8_SetDataFormat(*pad, &c_dfDIJoystick2);
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IDirectInputDevice8_SetCooperativeLevel(*pad, (HWND)driver.video_window,
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DISCL_NONEXCLUSIVE | DISCL_BACKGROUND);
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IDirectInputDevice8_EnumObjects(*pad, enum_axes_cb,
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*pad, DIDFT_ABSAXIS);
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g_joypad_cnt++;
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return DIENUM_CONTINUE;
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}
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static bool dinput_joypad_init(void)
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{
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if (!dinput_init_context())
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return false;
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RARCH_LOG("Enumerating DInput joypads ...\n");
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IDirectInput8_EnumDevices(g_ctx, DI8DEVCLASS_GAMECTRL,
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enum_joypad_cb, NULL, DIEDFL_ATTACHEDONLY);
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RARCH_LOG("Done enumerating DInput joypads ...\n");
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return true;
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}
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static bool dinput_joypad_button(unsigned port_num, 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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const struct dinput_joypad *pad = &g_pads[port_num];
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if (!pad->joypad)
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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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{
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unsigned hat = GET_HAT(joykey);
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unsigned elems = sizeof(pad->joy_state.rgdwPOV) / sizeof(pad->joy_state.rgdwPOV[0]);
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if (hat >= elems)
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return false;
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unsigned pov = pad->joy_state.rgdwPOV[hat];
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// Magic numbers I'm not sure where originate from.
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if (pov < 36000)
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{
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switch (GET_HAT_DIR(joykey))
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{
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case HAT_UP_MASK:
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return (pov >= 31500) || (pov <= 4500);
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case HAT_RIGHT_MASK:
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return (pov >= 4500) && (pov <= 13500);
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case HAT_DOWN_MASK:
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return (pov >= 13500) && (pov <= 22500);
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case HAT_LEFT_MASK:
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return (pov >= 22500) && (pov <= 31500);
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}
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}
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return false;
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}
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else
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{
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unsigned elems = sizeof(pad->joy_state.rgbButtons) / sizeof(pad->joy_state.rgbButtons[0]);
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if (joykey < elems)
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return pad->joy_state.rgbButtons[joykey];
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}
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return false;
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}
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static int16_t dinput_joypad_axis(unsigned port_num, uint32_t joyaxis)
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{
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if (joyaxis == AXIS_NONE)
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return 0;
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const struct dinput_joypad *pad = &g_pads[port_num];
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if (!pad->joypad)
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return 0;
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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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if (AXIS_NEG_GET(joyaxis) <= 5)
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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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switch (axis)
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{
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case 0: val = pad->joy_state.lX; break;
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case 1: val = pad->joy_state.lY; break;
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case 2: val = pad->joy_state.lZ; break;
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case 3: val = pad->joy_state.lRx; break;
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case 4: val = pad->joy_state.lRy; break;
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case 5: val = pad->joy_state.lRz; 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;
|
|
|
|
return val;
|
|
}
|
|
|
|
static void dinput_joypad_poll(void)
|
|
{
|
|
for (unsigned i = 0; i < MAX_PLAYERS; i++)
|
|
{
|
|
struct dinput_joypad *pad = &g_pads[i];
|
|
|
|
if (pad->joypad)
|
|
{
|
|
memset(&pad->joy_state, 0, sizeof(pad->joy_state));
|
|
|
|
if (FAILED(IDirectInputDevice8_Poll(pad->joypad)))
|
|
{
|
|
if (FAILED(IDirectInputDevice8_Acquire(pad->joypad)))
|
|
{
|
|
memset(&pad->joy_state, 0, sizeof(DIJOYSTATE2));
|
|
continue;
|
|
}
|
|
|
|
// If this fails, something *really* bad must have happened.
|
|
if (FAILED(IDirectInputDevice8_Poll(pad->joypad)))
|
|
{
|
|
memset(&pad->joy_state, 0, sizeof(DIJOYSTATE2));
|
|
continue;
|
|
}
|
|
}
|
|
|
|
IDirectInputDevice8_GetDeviceState(pad->joypad,
|
|
sizeof(DIJOYSTATE2), &pad->joy_state);
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool dinput_joypad_query_pad(unsigned pad)
|
|
{
|
|
return pad < MAX_PLAYERS && g_pads[pad].joypad;
|
|
}
|
|
|
|
static const char *dinput_joypad_name(unsigned pad)
|
|
{
|
|
(void)pad;
|
|
// FIXME
|
|
return NULL;
|
|
}
|
|
|
|
const rarch_joypad_driver_t dinput_joypad = {
|
|
dinput_joypad_init,
|
|
dinput_joypad_query_pad,
|
|
dinput_joypad_destroy,
|
|
dinput_joypad_button,
|
|
dinput_joypad_axis,
|
|
dinput_joypad_poll,
|
|
dinput_joypad_name,
|
|
"dinput",
|
|
};
|
|
|