EE - joy_common.sh 4.9

joy_common.sh

#!/bin/bash

# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2020-present Shanti Gilbert (https://github.com/shantigilbert)
# Copyright (C) 2022-present Joshua L (https://github.com/Langerz82)

# 08/01/23 - Joshua L - Modified get GUID thanks to shantigilbert.
# 16/10/25 - Joshua L - Modified uses sdljoytest.
# 22/02/26 - Joshua L - Added js instance ID.
# 23/02/26 - Pablo S - Added ES Ordering fixes. (https://github.com/pmsobrado)

# Source predefined functions and variables
. /etc/profile

GCDB="${SDL_GAMECONTROLLERCONFIG_FILE}"

EMULATOR="${1}"

mkdir -p "/tmp/jc"

GAMEPAD_INFO_ALL="/tmp/jc/gamepad_info.txt"

CONTROLLERS_PRIORITY_DATA=
[[ -f "/tmp/controllerconfig.txt" ]] && CONTROLLERS_PRIORITY_DATA=$(cat "/tmp/controllerconfig.txt")

jc_wipe_config_sub_heading() {
    local config_file="$1"
    local sub_heading="$2"
    local tmp_file="$3"

    shift
    shift
    shift

    declare -a array_ref=("$@")

    [[ -f "${tmp_file}" ]] && rm "${tmp_file}"
    local LN=1
    local START_LN=-1
    [[ ! -f "${config_file}" ]] && return
    local REGEX_SUB_HEADING='^\[.+\]$'
    while read -r line; do
      if [[ "${line}" =~ $REGEX_SUB_HEADING ]]; then
        if [[ "${line}" == "${sub_heading}" ]]; then
          START_LN=${LN}
        else
          [[ ${START_LN} != -1 ]] && break
        fi
      fi
      LN=$(( LN + 1 ))
      local rx=
      for item in "${array_ref[@]}"; do
        rx="^${item}\ *\=.+$"
        [[ "${line}" =~ ${rx} ]] && echo "${line}" >> ${tmp_file}
      done
    done < ${config_file}
    if [[ ${START_LN} != -1 ]]; then
      sed -i "${START_LN},$(( LN-1 ))d" "${config_file}"
    fi
}

jc_get_config() {
  local GAMEPAD_DATA=$(cat ${GAMEPAD_INFO_ALL} | grep -E -A5 "^Gamepad ${1}$")
  [[ -z "${GAMEPAD_DATA}" ]] && echo '' && return

  mapfile -t GAMEPAD_INFO < <(echo "${GAMEPAD_DATA}")

  local JOY_UDEV_NAME="$( echo "${GAMEPAD_INFO[1]}" | cut -c18- )"
  local JOY_SDL_NAME="$( echo "${GAMEPAD_INFO[2]}" | cut -c18- )"
  local DEVICE_GUID="$( echo "${GAMEPAD_INFO[3]}" | cut -c18- )"
  local JOYMAPPING="$( echo "${GAMEPAD_INFO[4]}" | cut -c18- )"
  local INSTANCE_ID="$( echo "${GAMEPAD_INFO[5]}" | cut -c18- )"
  local JS_INDEX="$( echo "${GAMEPAD_INFO[6]}" | cut -c18- )"

  echo js${JS_INDEX} ${DEVICE_GUID} \"${JOY_UDEV_NAME}\" \"${JOYMAPPING}\" \"${JOY_SDL_NAME}\"
}

jc_get_players() {
  gamepad_info -more > ${GAMEPAD_INFO_ALL}

  declare -a player_cfgs=()
  declare -a player_order=()

  for i in {0..3}; do
    local CFG=$( jc_get_config "${i}" )
    local CURRENT_GUID=$(echo "${CFG}" | awk '{print $2}')

    local PINDEX=

    # 1. Get player for this physical index (jci)
    if [[ ! -z "${CURRENT_GUID}" ]]; then
      PINDEX=$(echo "${CONTROLLERS_PRIORITY_DATA}" | grep -o "\-p[1-4]guid ${CURRENT_GUID}" | head -n1 | cut -c3)
      PINDEX=$(( PINDEX - 1 ))
    fi

    # 2. If it does not exist on the priority settings, assign default one but respecting reserved joypad slots
    if [[ ! -n "${PINDEX}" ]]; then
      for pi in {0..3}; do
        PINDEX=$pi
        [[ ! " ${player_order[@]} " =~ " ${PINDEX} " ]] && break
      done
    fi

    player_order+=(${PINDEX})
    player_cfgs+=("${CFG}")
  done

  for i in {0..3}; do
      local pi=$(( i + 1 ))
      clean_pad ${pi}
      local order=${player_order[${i}]}
      local cfg=${player_cfgs[${order}]}
      [[ ! -z "${cfg}" ]] && eval set_pad ${pi} ${cfg}
  done
}