mirror of
https://github.com/libretro/RetroArch.git
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f2ea5dde11
== DETAILS * Fix double-free in hidpad shutdown code * Fix possible double-free in hidpad error handling code * Fix memory leak in adapter delete method
159 lines
3.5 KiB
C
159 lines
3.5 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2017 - Ali Bouhlel
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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 <wiiu/pad_driver.h>
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#include "wiiu_dbg.h"
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static input_device_driver_t *pad_drivers[MAX_USERS];
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static bool ready = false;
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static bool wiiu_joypad_init(void *data);
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static bool wiiu_joypad_query_pad(unsigned pad);
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static void wiiu_joypad_destroy(void);
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static bool wiiu_joypad_button(unsigned pad, uint16_t button);
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static void wiiu_joypad_get_buttons(unsigned pad, retro_bits_t *state);
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static int16_t wiiu_joypad_axis(unsigned pad, uint32_t axis);
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static void wiiu_joypad_poll(void);
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static const char *wiiu_joypad_name(unsigned pad);
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/**
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* Translates a pad to its appropriate driver.
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* Note that this is a helper for build_pad_map and shouldn't be
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* used directly.
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*/
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static input_device_driver_t *get_driver_for_pad(unsigned pad)
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{
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if(wpad_driver.query_pad(pad))
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return &wpad_driver;
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if(kpad_driver.query_pad(pad))
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return &kpad_driver;
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#ifdef WIIU_HID
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return &hidpad_driver;
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#else
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return NULL;
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#endif
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}
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/**
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* Populates the pad_driver array. We do this once at init time so
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* that lookups at runtime are constant time.
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*/
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static void build_pad_map(void)
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{
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unsigned i;
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for(i = 0; i < MAX_USERS; i++)
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{
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pad_drivers[i] = get_driver_for_pad(i);
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}
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}
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static bool wiiu_joypad_init(void* data)
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{
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/* the sub-drivers have to init first, otherwise
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* build_pad_map will fail (because all lookups will return false). */
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wpad_driver.init(data);
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kpad_driver.init(data);
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#ifdef WIIU_HID
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hidpad_driver.init(data);
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#endif
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build_pad_map();
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ready = true;
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(void)data;
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return true;
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}
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static bool wiiu_joypad_query_pad(unsigned pad)
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{
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#ifdef WIIU_HID
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return ready && pad < MAX_USERS;
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#else
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return ready && pad < 5;
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#endif
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}
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static void wiiu_joypad_destroy(void)
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{
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ready = false;
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wpad_driver.destroy();
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kpad_driver.destroy();
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#ifdef WIIU_HID
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hidpad_driver.destroy();
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#endif
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}
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static bool wiiu_joypad_button(unsigned pad, uint16_t key)
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{
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if(!wiiu_joypad_query_pad(pad))
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return false;
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return pad_drivers[pad]->button(pad, key);
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}
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static void wiiu_joypad_get_buttons(unsigned pad, retro_bits_t *state)
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{
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if(!wiiu_joypad_query_pad(pad))
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return;
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pad_drivers[pad]->get_buttons(pad, state);
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}
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static int16_t wiiu_joypad_axis(unsigned pad, uint32_t joyaxis)
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{
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if(!wiiu_joypad_query_pad(pad))
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return 0;
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return pad_drivers[pad]->axis(pad, joyaxis);
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}
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static void wiiu_joypad_poll(void)
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{
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wpad_driver.poll();
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kpad_driver.poll();
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#ifdef WIIU_HID
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hidpad_driver.poll();
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#endif
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}
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static const char* wiiu_joypad_name(unsigned pad)
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{
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if(!wiiu_joypad_query_pad(pad))
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return "N/A";
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return pad_drivers[pad]->name(pad);
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}
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input_device_driver_t wiiu_joypad =
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{
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wiiu_joypad_init,
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wiiu_joypad_query_pad,
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wiiu_joypad_destroy,
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wiiu_joypad_button,
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wiiu_joypad_get_buttons,
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wiiu_joypad_axis,
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wiiu_joypad_poll,
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NULL,
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wiiu_joypad_name,
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"wiiu",
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};
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