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RetroArch/input/input_common.c
Stefan a4faa857c0 input: add sanity check for analog dpad mode 
Don't remap dpad joyaxis if analog joyaxis values are not valid. Joyaxis values are not valid if up and down or left and right are equal.

-Fix for https://github.com/libretro/RetroArch/issues/1780. If no analog left or right is configured (retroarch.cfg, autoconf) default analog joyaxis values are "-1".
-Make this wish https://github.com/libretro/RetroArch/issues/609 obsolete.
2015-10-30 07:25:43 +01:00

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/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - 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 <file/file_path.h>
#include "input_common.h"
#include "input_keymaps.h"
#include "../general.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include "../gfx/video_viewport.h"
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_NEXT, "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
};
/**
* input_translate_coord_viewport:
* @mouse_x : Pointer X coordinate.
* @mouse_y : Pointer Y coordinate.
* @res_x : Scaled X coordinate.
* @res_y : Scaled Y coordinate.
* @res_screen_x : Scaled screen X coordinate.
* @res_screen_y : Scaled screen Y coordinate.
*
* Translates pointer [X,Y] coordinates into scaled screen
* coordinates based on viewport info.
*
* Returns: true (1) if successful, false if video driver doesn't support
* viewport info.
**/
bool input_translate_coord_viewport(int mouse_x, int mouse_y,
int16_t *res_x, int16_t *res_y, int16_t *res_screen_x,
int16_t *res_screen_y)
{
int scaled_screen_x, scaled_screen_y, scaled_x, scaled_y;
struct video_viewport vp = {0};
if (!video_driver_viewport_info(&vp))
return false;
scaled_screen_x = (2 * mouse_x * 0x7fff) / (int)vp.full_width - 0x7fff;
scaled_screen_y = (2 * mouse_y * 0x7fff) / (int)vp.full_height - 0x7fff;
if (scaled_screen_x < -0x7fff || scaled_screen_x > 0x7fff)
scaled_screen_x = -0x8000; /* OOB */
if (scaled_screen_y < -0x7fff || scaled_screen_y > 0x7fff)
scaled_screen_y = -0x8000; /* OOB */
mouse_x -= vp.x;
mouse_y -= vp.y;
scaled_x = (2 * mouse_x * 0x7fff) / (int)vp.width - 0x7fff;
scaled_y = (2 * mouse_y * 0x7fff) / (int)vp.height - 0x7fff;
if (scaled_x < -0x7fff || scaled_x > 0x7fff)
scaled_x = -0x8000; /* OOB */
if (scaled_y < -0x7fff || scaled_y > 0x7fff)
scaled_y = -0x8000; /* OOB */
*res_x = scaled_x;
*res_y = scaled_y;
*res_screen_x = scaled_screen_x;
*res_screen_y = scaled_screen_y;
return true;
}
void input_config_parse_key(config_file_t *conf,
const char *prefix, const char *btn,
struct retro_keybind *bind)
{
char tmp[64] = {0};
char key[64] = {0};
fill_pathname_join_delim(key, prefix, btn, '_', sizeof(key));
if (config_get_array(conf, key, tmp, sizeof(tmp)))
bind->key = input_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];
else 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 (strcasecmp(input_config_key_map[i].str, str) == 0)
return input_config_key_map[i].key;
}
RARCH_WARN("Key name %s not found.\n", str);
return RETROK_UNKNOWN;
}
/**
* input_translate_str_to_rk:
* @str : String to translate to key ID.
*
* Translates tring representation to key identifier.
*
* Returns: key identifier.
**/
enum retro_key input_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_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_translate_str_to_bind_id(const char *str)
{
unsigned i;
for (i = 0; input_config_bind_map[i].valid; i++)
if (!strcmp(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 (strcasecmp(dir, "up") == 0)
hat_dir = HAT_UP_MASK;
else if (strcasecmp(dir, "down") == 0)
hat_dir = HAT_DOWN_MASK;
else if (strcasecmp(dir, "left") == 0)
hat_dir = HAT_LEFT_MASK;
else if (strcasecmp(dir, "right") == 0)
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] = {0};
char tmp[64] = {0};
char key[64] = {0};
char key_label[64] = {0};
char *tmp_a = NULL;
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 (!strcmp(btn, "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] = {0};
char tmp[64] = {0};
char key[64] = {0};
char key_label[64] = {0};
char *tmp_a = NULL;
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 (!strcmp(tmp, "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);
}
}
#if !defined(IS_JOYCONFIG)
static void input_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 = NULL;
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:
dir = "?";
break;
}
if (bind->joykey_label[0] != '\0' && settings->input.autoconfig_descriptor_label_show)
snprintf(buf, size, "%s %s ", prefix, bind->joykey_label);
else
snprintf(buf, size, "%sHat #%u %s ", prefix,
(unsigned)GET_HAT(bind->joykey), dir);
}
else
{
if (bind->joykey_label[0] != '\0' && settings->input.autoconfig_descriptor_label_show)
snprintf(buf, size, "%s%s (btn) ", prefix, bind->joykey_label);
else
snprintf(buf, size, "%s%u (btn) ", prefix, (unsigned)bind->joykey);
}
}
static void input_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 (bind->joyaxis_label[0] != '\0' && settings->input.autoconfig_descriptor_label_show)
snprintf(buf, size, "%s%s (axis) ", prefix, bind->joyaxis_label);
else
snprintf(buf, size, "%s%c%u (axis) ", prefix, dir, axis);
}
void input_get_bind_string(char *buf, const struct retro_keybind *bind,
const struct retro_keybind *auto_bind, size_t size)
{
char key[64] = {0};
char keybuf[64] = {0};
(void)key;
(void)keybuf;
*buf = '\0';
if (bind->joykey != NO_BTN)
input_get_bind_string_joykey(buf, "", bind, size);
else if (bind->joyaxis != AXIS_NONE)
input_get_bind_string_joyaxis(buf, "", bind, size);
else if (auto_bind && auto_bind->joykey != NO_BTN)
input_get_bind_string_joykey(buf, "Auto: ", auto_bind, size);
else if (auto_bind && auto_bind->joyaxis != AXIS_NONE)
input_get_bind_string_joyaxis(buf, "Auto: ", auto_bind, size);
#ifndef RARCH_CONSOLE
input_keymaps_translate_rk_to_str(bind->key, key, sizeof(key));
if (!strcmp(key, "nul"))
*key = '\0';
snprintf(keybuf, sizeof(keybuf), "(Key: %s)", key);
strlcat(buf, keybuf, size);
#endif
}
#endif
/**
* input_push_analog_dpad:
* @binds : Binds to modify.
* @mode : Which analog stick to bind D-Pad to.
* E.g:
* ANALOG_DPAD_LSTICK
* ANALOG_DPAD_RSTICK
*
* Push analog to D-Pad mappings to binds.
**/
void input_push_analog_dpad(struct retro_keybind *binds, unsigned mode)
{
unsigned i, j = 0;
bool inherit_joyaxis = false;
for (i = RETRO_DEVICE_ID_JOYPAD_UP; i <= RETRO_DEVICE_ID_JOYPAD_RIGHT; i++)
binds[i].orig_joyaxis = binds[i].joyaxis;
switch (mode)
{
case ANALOG_DPAD_LSTICK:
/* check if analog left is defined. *
* if plus and minus are equal abort. */
if (!((binds[RARCH_ANALOG_LEFT_X_PLUS].joyaxis ==
binds[RARCH_ANALOG_LEFT_X_MINUS].joyaxis) ||
(binds[RARCH_ANALOG_LEFT_Y_PLUS].joyaxis ==
binds[RARCH_ANALOG_LEFT_Y_MINUS].joyaxis)))
{
j = RARCH_ANALOG_LEFT_X_PLUS + 3;
inherit_joyaxis = true;
}
break;
case ANALOG_DPAD_RSTICK:
/* check if analog right is defined. *
* if plus and minus are equal abort. */
if (!((binds[RARCH_ANALOG_RIGHT_X_PLUS].joyaxis ==
binds[RARCH_ANALOG_RIGHT_X_MINUS].joyaxis) ||
(binds[RARCH_ANALOG_RIGHT_Y_PLUS].joyaxis ==
binds[RARCH_ANALOG_RIGHT_Y_MINUS].joyaxis)))
{
j = RARCH_ANALOG_RIGHT_X_PLUS + 3;
inherit_joyaxis = true;
}
break;
}
if (!inherit_joyaxis)
return;
/* Inherit joyaxis from analogs. */
for (i = RETRO_DEVICE_ID_JOYPAD_UP; i <= RETRO_DEVICE_ID_JOYPAD_RIGHT; i++)
binds[i].joyaxis = binds[j--].joyaxis;
}
/**
* input_pop_analog_dpad:
* @binds : Binds to modify.
*
* Restores binds temporarily overridden by input_push_analog_dpad().
**/
void input_pop_analog_dpad(struct retro_keybind *binds)
{
unsigned i;
for (i = RETRO_DEVICE_ID_JOYPAD_UP; i <= RETRO_DEVICE_ID_JOYPAD_RIGHT; i++)
binds[i].joyaxis = binds[i].orig_joyaxis;
}
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