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RetroArch/input/input_config.c
twinaphex 80339014a5 (input_config.c) Prevent implicit memsets
2016-10-09 08:58:44 +02:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2016 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <compat/strl.h>
#include <file/file_path.h>
#include <string/stdstring.h>
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "input_config.h"
#include "input_keymaps.h"
#include "input_remapping.h"
#include "../msg_hash.h"
#include "../configuration.h"
#include "../file_path_special.h"
#include "../verbosity.h"
/* Input config. */
struct input_bind_map
{
bool valid;
/* Meta binds get input as prefix, not input_playerN".
* 0 = libretro related.
* 1 = Common hotkey.
* 2 = Uncommon/obscure hotkey.
*/
unsigned meta;
const char *base;
const char *desc;
unsigned retro_key;
};
static const char *bind_user_prefix[MAX_USERS] = {
"input_player1",
"input_player2",
"input_player3",
"input_player4",
"input_player5",
"input_player6",
"input_player7",
"input_player8",
"input_player9",
"input_player10",
"input_player11",
"input_player12",
"input_player13",
"input_player14",
"input_player15",
"input_player16",
};
#define DECLARE_BIND(x, bind, desc) { true, 0, #x, desc, bind }
#define DECLARE_META_BIND(level, x, bind, desc) { true, level, #x, desc, bind }
const struct input_bind_map input_config_bind_map[RARCH_BIND_LIST_END_NULL] = {
DECLARE_BIND(b, RETRO_DEVICE_ID_JOYPAD_B, "B button (down)"),
DECLARE_BIND(y, RETRO_DEVICE_ID_JOYPAD_Y, "Y button (left)"),
DECLARE_BIND(select, RETRO_DEVICE_ID_JOYPAD_SELECT, "Select button"),
DECLARE_BIND(start, RETRO_DEVICE_ID_JOYPAD_START, "Start button"),
DECLARE_BIND(up, RETRO_DEVICE_ID_JOYPAD_UP, "Up D-pad"),
DECLARE_BIND(down, RETRO_DEVICE_ID_JOYPAD_DOWN, "Down D-pad"),
DECLARE_BIND(left, RETRO_DEVICE_ID_JOYPAD_LEFT, "Left D-pad"),
DECLARE_BIND(right, RETRO_DEVICE_ID_JOYPAD_RIGHT, "Right D-pad"),
DECLARE_BIND(a, RETRO_DEVICE_ID_JOYPAD_A, "A button (right)"),
DECLARE_BIND(x, RETRO_DEVICE_ID_JOYPAD_X, "X button (top)"),
DECLARE_BIND(l, RETRO_DEVICE_ID_JOYPAD_L, "L button (shoulder)"),
DECLARE_BIND(r, RETRO_DEVICE_ID_JOYPAD_R, "R button (shoulder)"),
DECLARE_BIND(l2, RETRO_DEVICE_ID_JOYPAD_L2, "L2 button (trigger)"),
DECLARE_BIND(r2, RETRO_DEVICE_ID_JOYPAD_R2, "R2 button (trigger)"),
DECLARE_BIND(l3, RETRO_DEVICE_ID_JOYPAD_L3, "L3 button (thumb)"),
DECLARE_BIND(r3, RETRO_DEVICE_ID_JOYPAD_R3, "R3 button (thumb)"),
DECLARE_BIND(l_x_plus, RARCH_ANALOG_LEFT_X_PLUS, "Left analog X+ (right)"),
DECLARE_BIND(l_x_minus, RARCH_ANALOG_LEFT_X_MINUS, "Left analog X- (left)"),
DECLARE_BIND(l_y_plus, RARCH_ANALOG_LEFT_Y_PLUS, "Left analog Y+ (down)"),
DECLARE_BIND(l_y_minus, RARCH_ANALOG_LEFT_Y_MINUS, "Left analog Y- (up)"),
DECLARE_BIND(r_x_plus, RARCH_ANALOG_RIGHT_X_PLUS, "Right analog X+ (right)"),
DECLARE_BIND(r_x_minus, RARCH_ANALOG_RIGHT_X_MINUS, "Right analog X- (left)"),
DECLARE_BIND(r_y_plus, RARCH_ANALOG_RIGHT_Y_PLUS, "Right analog Y+ (down)"),
DECLARE_BIND(r_y_minus, RARCH_ANALOG_RIGHT_Y_MINUS, "Right analog Y- (up)"),
DECLARE_BIND(turbo, RARCH_TURBO_ENABLE, "Turbo enable"),
DECLARE_META_BIND(1, toggle_fast_forward, RARCH_FAST_FORWARD_KEY, "Fast forward toggle"),
DECLARE_META_BIND(2, hold_fast_forward, RARCH_FAST_FORWARD_HOLD_KEY, "Fast forward hold"),
DECLARE_META_BIND(1, load_state, RARCH_LOAD_STATE_KEY, "Load state"),
DECLARE_META_BIND(1, save_state, RARCH_SAVE_STATE_KEY, "Save state"),
DECLARE_META_BIND(2, toggle_fullscreen, RARCH_FULLSCREEN_TOGGLE_KEY, "Fullscreen toggle"),
DECLARE_META_BIND(2, exit_emulator, RARCH_QUIT_KEY, "Quit RetroArch"),
DECLARE_META_BIND(2, state_slot_increase, RARCH_STATE_SLOT_PLUS, "Savestate slot +"),
DECLARE_META_BIND(2, state_slot_decrease, RARCH_STATE_SLOT_MINUS, "Savestate slot -"),
DECLARE_META_BIND(1, rewind, RARCH_REWIND, "Rewind"),
DECLARE_META_BIND(2, movie_record_toggle, RARCH_MOVIE_RECORD_TOGGLE, "Movie record toggle"),
DECLARE_META_BIND(2, pause_toggle, RARCH_PAUSE_TOGGLE, "Pause toggle"),
DECLARE_META_BIND(2, frame_advance, RARCH_FRAMEADVANCE, "Frameadvance"),
DECLARE_META_BIND(2, reset, RARCH_RESET, "Reset game"),
DECLARE_META_BIND(2, shader_next, RARCH_SHADER_NEXT, "Next shader"),
DECLARE_META_BIND(2, shader_prev, RARCH_SHADER_PREV, "Previous shader"),
DECLARE_META_BIND(2, cheat_index_plus, RARCH_CHEAT_INDEX_PLUS, "Cheat index +"),
DECLARE_META_BIND(2, cheat_index_minus, RARCH_CHEAT_INDEX_MINUS, "Cheat index -"),
DECLARE_META_BIND(2, cheat_toggle, RARCH_CHEAT_TOGGLE, "Cheat toggle"),
DECLARE_META_BIND(2, screenshot, RARCH_SCREENSHOT, "Take screenshot"),
DECLARE_META_BIND(2, audio_mute, RARCH_MUTE, "Audio mute toggle"),
DECLARE_META_BIND(2, osk_toggle, RARCH_OSK, "On-screen keyboard toggle"),
DECLARE_META_BIND(2, netplay_flip_players, RARCH_NETPLAY_FLIP, "Netplay flip users"),
DECLARE_META_BIND(2, slowmotion, RARCH_SLOWMOTION, "Slow motion"),
DECLARE_META_BIND(2, enable_hotkey, RARCH_ENABLE_HOTKEY, "Enable hotkeys"),
DECLARE_META_BIND(2, volume_up, RARCH_VOLUME_UP, "Volume +"),
DECLARE_META_BIND(2, volume_down, RARCH_VOLUME_DOWN, "Volume -"),
DECLARE_META_BIND(2, overlay_next, RARCH_OVERLAY_NEXT, "Overlay next"),
DECLARE_META_BIND(2, disk_eject_toggle, RARCH_DISK_EJECT_TOGGLE, "Disk eject toggle"),
DECLARE_META_BIND(2, disk_next, RARCH_DISK_NEXT, "Disk next"),
DECLARE_META_BIND(2, disk_prev, RARCH_DISK_PREV, "Disk prev"),
DECLARE_META_BIND(2, grab_mouse_toggle, RARCH_GRAB_MOUSE_TOGGLE, "Grab mouse toggle"),
#ifdef HAVE_MENU
DECLARE_META_BIND(1, menu_toggle, RARCH_MENU_TOGGLE, "Menu toggle"),
#endif
};
static const void *input_config_bind_map_get(unsigned i)
{
return (const struct input_bind_map*)&input_config_bind_map[i];
}
bool input_config_bind_map_get_valid(unsigned i)
{
const struct input_bind_map *keybind =
(const struct input_bind_map*)input_config_bind_map_get(i);
if (!keybind)
return false;
return keybind->valid;
}
unsigned input_config_bind_map_get_meta(unsigned i)
{
const struct input_bind_map *keybind =
(const struct input_bind_map*)input_config_bind_map_get(i);
if (!keybind)
return 0;
return keybind->meta;
}
const char *input_config_bind_map_get_base(unsigned i)
{
const struct input_bind_map *keybind =
(const struct input_bind_map*)input_config_bind_map_get(i);
if (!keybind)
return NULL;
return keybind->base;
}
const char *input_config_bind_map_get_desc(unsigned i)
{
const struct input_bind_map *keybind =
(const struct input_bind_map*)input_config_bind_map_get(i);
if (!keybind)
return NULL;
return keybind->desc;
}
void input_config_parse_key(config_file_t *conf,
const char *prefix, const char *btn,
struct retro_keybind *bind)
{
char tmp[64];
char key[64];
tmp[0] = key[0] = '\0';
fill_pathname_join_delim(key, prefix, btn, '_', sizeof(key));
if (config_get_array(conf, key, tmp, sizeof(tmp)))
bind->key = input_config_translate_str_to_rk(tmp);
}
const char *input_config_get_prefix(unsigned user, bool meta)
{
if (user == 0)
return meta ? "input" : bind_user_prefix[user];
if (user != 0 && !meta)
return bind_user_prefix[user];
/* Don't bother with meta bind for anyone else than first user. */
return NULL;
}
static enum retro_key find_rk_bind(const char *str)
{
size_t i;
for (i = 0; input_config_key_map[i].str; i++)
{
if (string_is_equal_noncase(input_config_key_map[i].str, str))
return input_config_key_map[i].key;
}
RARCH_WARN("Key name %s not found.\n", str);
return RETROK_UNKNOWN;
}
/**
* input_config_translate_str_to_rk:
* @str : String to translate to key ID.
*
* Translates tring representation to key identifier.
*
* Returns: key identifier.
**/
enum retro_key input_config_translate_str_to_rk(const char *str)
{
if (strlen(str) == 1 && isalpha((int)*str))
return (enum retro_key)(RETROK_a + (tolower((int)*str) - (int)'a'));
return find_rk_bind(str);
}
/**
* input_config_translate_str_to_bind_id:
* @str : String to translate to bind ID.
*
* Translate string representation to bind ID.
*
* Returns: Bind ID value on success, otherwise
* RARCH_BIND_LIST_END on not found.
**/
unsigned input_config_translate_str_to_bind_id(const char *str)
{
unsigned i;
for (i = 0; input_config_bind_map[i].valid; i++)
if (string_is_equal(str, input_config_bind_map[i].base))
return i;
return RARCH_BIND_LIST_END;
}
static void parse_hat(struct retro_keybind *bind, const char *str)
{
uint16_t hat;
uint16_t hat_dir = 0;
char *dir = NULL;
if (!bind || !str)
return;
if (!isdigit((int)*str))
return;
hat = strtoul(str, &dir, 0);
if (!dir)
{
RARCH_WARN("Found invalid hat in config!\n");
return;
}
if (string_is_equal_noncase(dir, "up"))
hat_dir = HAT_UP_MASK;
else if (string_is_equal_noncase(dir, "down"))
hat_dir = HAT_DOWN_MASK;
else if (string_is_equal_noncase(dir, "left"))
hat_dir = HAT_LEFT_MASK;
else if (string_is_equal_noncase(dir, "right"))
hat_dir = HAT_RIGHT_MASK;
if (hat_dir)
bind->joykey = HAT_MAP(hat, hat_dir);
}
void input_config_parse_joy_button(config_file_t *conf, const char *prefix,
const char *btn, struct retro_keybind *bind)
{
char str[256];
char tmp[64];
char key[64];
char key_label[64] = {0};
char *tmp_a = NULL;
str[0] = tmp[0] = key[0] = '\0';
fill_pathname_join_delim(str, prefix, btn,
'_', sizeof(str));
fill_pathname_join_delim(key, str,
"btn", '_', sizeof(key));
fill_pathname_join_delim(key_label, str,
"btn_label", '_', sizeof(key_label));
if (config_get_array(conf, key, tmp, sizeof(tmp)))
{
btn = tmp;
if (string_is_equal(btn, file_path_str(FILE_PATH_NUL)))
bind->joykey = NO_BTN;
else
{
if (*btn == 'h')
parse_hat(bind, btn + 1);
else
bind->joykey = strtoull(tmp, NULL, 0);
}
}
if (config_get_string(conf, key_label, &tmp_a))
{
strlcpy(bind->joykey_label, tmp_a, sizeof(bind->joykey_label));
free(tmp_a);
}
}
void input_config_parse_joy_axis(config_file_t *conf, const char *prefix,
const char *axis, struct retro_keybind *bind)
{
char str[256];
char tmp[64];
char key[64];
char key_label[64];
char *tmp_a = NULL;
str[0] = tmp[0] = key[0] = key_label[0] = '\0';
fill_pathname_join_delim(str, prefix, axis,
'_', sizeof(str));
fill_pathname_join_delim(key, str,
"axis", '_', sizeof(key));
fill_pathname_join_delim(key_label, str,
"axis_label", '_', sizeof(key_label));
if (config_get_array(conf, key, tmp, sizeof(tmp)))
{
if (string_is_equal(tmp, file_path_str(FILE_PATH_NUL)))
bind->joyaxis = AXIS_NONE;
else if (strlen(tmp) >= 2 && (*tmp == '+' || *tmp == '-'))
{
int i_axis = strtol(tmp + 1, NULL, 0);
if (*tmp == '+')
bind->joyaxis = AXIS_POS(i_axis);
else
bind->joyaxis = AXIS_NEG(i_axis);
}
/* Ensure that D-pad emulation doesn't screw this over. */
bind->orig_joyaxis = bind->joyaxis;
}
if (config_get_string(conf, key_label, &tmp_a))
{
strlcpy(bind->joyaxis_label, tmp_a, sizeof(bind->joyaxis_label));
free(tmp_a);
}
}
static void input_config_get_bind_string_joykey(char *buf, const char *prefix,
const struct retro_keybind *bind, size_t size)
{
settings_t *settings = config_get_ptr();
if (GET_HAT_DIR(bind->joykey))
{
const char *dir = "?";
switch (GET_HAT_DIR(bind->joykey))
{
case HAT_UP_MASK:
dir = "up";
break;
case HAT_DOWN_MASK:
dir = "down";
break;
case HAT_LEFT_MASK:
dir = "left";
break;
case HAT_RIGHT_MASK:
dir = "right";
break;
default:
break;
}
if (!string_is_empty(bind->joykey_label)
&& settings->input.input_descriptor_label_show)
snprintf(buf, size, "%s %s ", prefix, bind->joykey_label);
else
snprintf(buf, size, "%sHat #%u %s (%s)", prefix,
(unsigned)GET_HAT(bind->joykey), dir,
msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NOT_AVAILABLE));
}
else
{
if (!string_is_empty(bind->joykey_label)
&& settings->input.input_descriptor_label_show)
snprintf(buf, size, "%s%s (btn) ", prefix, bind->joykey_label);
else
snprintf(buf, size, "%s%u (%s) ", prefix, (unsigned)bind->joykey,
msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NOT_AVAILABLE));
}
}
static void input_config_get_bind_string_joyaxis(char *buf, const char *prefix,
const struct retro_keybind *bind, size_t size)
{
unsigned axis = 0;
char dir = '\0';
settings_t *settings = config_get_ptr();
if (AXIS_NEG_GET(bind->joyaxis) != AXIS_DIR_NONE)
{
dir = '-';
axis = AXIS_NEG_GET(bind->joyaxis);
}
else if (AXIS_POS_GET(bind->joyaxis) != AXIS_DIR_NONE)
{
dir = '+';
axis = AXIS_POS_GET(bind->joyaxis);
}
if (!string_is_empty(bind->joyaxis_label)
&& settings->input.input_descriptor_label_show)
snprintf(buf, size, "%s%s (axis) ", prefix, bind->joyaxis_label);
else
snprintf(buf, size, "%s%c%u (%s) ", prefix, dir, axis,
msg_hash_to_str(MENU_ENUM_LABEL_VALUE_NOT_AVAILABLE));
}
void input_config_get_bind_string(char *buf, const struct retro_keybind *bind,
const struct retro_keybind *auto_bind, size_t size)
{
#ifndef RARCH_CONSOLE
char key[64];
char keybuf[64];
key[0] = keybuf[0] = '\0';
#endif
*buf = '\0';
if (bind->joykey != NO_BTN)
input_config_get_bind_string_joykey(buf, "", bind, size);
else if (bind->joyaxis != AXIS_NONE)
input_config_get_bind_string_joyaxis(buf, "", bind, size);
else if (auto_bind && auto_bind->joykey != NO_BTN)
input_config_get_bind_string_joykey(buf, "Auto: ", auto_bind, size);
else if (auto_bind && auto_bind->joyaxis != AXIS_NONE)
input_config_get_bind_string_joyaxis(buf, "Auto: ", auto_bind, size);
#ifndef RARCH_CONSOLE
input_keymaps_translate_rk_to_str(bind->key, key, sizeof(key));
if (string_is_equal(key, file_path_str(FILE_PATH_NUL)))
*key = '\0';
snprintf(keybuf, sizeof(keybuf), "(Key: %s)", key);
strlcat(buf, keybuf, size);
#endif
}
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