mirror of
https://github.com/CTCaer/RetroArch.git
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114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2012 - 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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#include "input_common.h"
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#include <string.h>
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#include <stdlib.h>
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#include "../general.h"
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#ifdef HAVE_CONFIG_H
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#include "../config.h"
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#endif
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static const rarch_joypad_driver_t *joypad_drivers[] = {
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#ifdef HAVE_DINPUT
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&dinput_joypad,
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#endif
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#if defined(__linux) && 0
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&linuxraw_joypad,
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#endif
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#ifdef HAVE_SDL
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&sdl_joypad,
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#endif
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};
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const rarch_joypad_driver_t *input_joypad_find_driver(const char *ident)
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{
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for (unsigned i = 0; i < sizeof(joypad_drivers) / sizeof(joypad_drivers[0]); i++)
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if (strcmp(ident, joypad_drivers[i]->ident) == 0)
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return joypad_drivers[i];
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return NULL;
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}
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const rarch_joypad_driver_t *input_joypad_init_first(void)
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{
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for (unsigned i = 0; i < sizeof(joypad_drivers) / sizeof(joypad_drivers[0]); i++)
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if (joypad_drivers[i]->init())
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return joypad_drivers[i];
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return NULL;
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}
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void input_joypad_poll(const rarch_joypad_driver_t *driver)
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{
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if (driver)
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driver->poll();
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}
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bool input_joypad_pressed(const rarch_joypad_driver_t *driver,
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unsigned port, const struct retro_keybind *key)
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{
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if (!driver)
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return false;
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int joy_index = g_settings.input.joypad_map[port];
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if (joy_index < 0 || joy_index >= MAX_PLAYERS)
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return false;
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if (!key->valid)
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return false;
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if (driver->button(joy_index, key->joykey))
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return true;
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int16_t axis = driver->axis(joy_index, key->joyaxis);
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float scaled_axis = (float)abs(axis) / 0x8000;
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return scaled_axis > g_settings.input.axis_threshold;
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}
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int16_t input_joypad_analog(const rarch_joypad_driver_t *driver,
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unsigned port, unsigned index, unsigned id, const struct retro_keybind *binds)
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{
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if (!driver)
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return 0;
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int joy_index = g_settings.input.joypad_map[port];
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if (joy_index < 0)
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return 0;
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unsigned id_minus = 0;
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unsigned id_plus = 0;
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input_conv_analog_id_to_bind_id(index, id, &id_minus, &id_plus);
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const struct retro_keybind *bind_minus = &binds[id_minus];
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const struct retro_keybind *bind_plus = &binds[id_plus];
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if (!bind_minus->valid || !bind_plus->valid)
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return 0;
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int16_t pressed_minus = abs(driver->axis(joy_index, bind_minus->joyaxis));
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int16_t pressed_plus = abs(driver->axis(joy_index, bind_plus->joyaxis));
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int16_t res = pressed_plus - pressed_minus;
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if (res != 0)
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return res;
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int16_t digital_left = driver->button(joy_index, bind_minus->joykey) ? -0x7fff : 0;
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int16_t digital_right = driver->button(joy_index, bind_plus->joykey) ? 0x7fff : 0;
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return digital_right + digital_left;
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}
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