From 53841045425cca0ab6757a52dbe264c6a45b83c8 Mon Sep 17 00:00:00 2001
From: Boris Yumankulov <boria138@altlinux.org>
Date: Mon, 7 Sep 2026 23:26:55 +0500
Subject: [PATCH] feat: launch Epic games through EGL wrapper

Signed-off-by: Boris Yumankulov <boria138@altlinux.org>
---
 .../share/portproton/scripts/functions_helper | 22 ++++++++++++++++++-
 build-aux/share/portproton/scripts/start.sh   | 13 ++++++++---
 build-aux/share/portproton/scripts/var        |  1 +
 portprotonqt/main_window.py                   |  4 +++-
 4 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/build-aux/share/portproton/scripts/functions_helper b/build-aux/share/portproton/scripts/functions_helper
index d38bc5a6..6b2d837f 100755
--- a/build-aux/share/portproton/scripts/functions_helper
+++ b/build-aux/share/portproton/scripts/functions_helper
@@ -533,6 +533,21 @@ try_download () {
     return 0
 }
 
+prepare_epic_wrapper () {
+    local expected_hash="1feb21e21e19cbb34e881791c8f2557769f59231e46850915d49a6d0c1ce4583"
+    export PW_EPIC_WRAPPER_EXE="${PORT_WINE_TMP_PATH}/plugins${PW_PLUGINS_VER}/epic/EpicGamesLauncher.exe"
+    if [[ ! -f "$PW_EPIC_WRAPPER_EXE" ]] ; then
+        create_new_dir "$(dirname "$PW_EPIC_WRAPPER_EXE")"
+        try_download \
+            "https://github.com/BananaWorks07/heroic-epic-integration/releases/download/v${PW_EPIC_WRAPPER_VER}/EpicGamesLauncher.exe" \
+            "$PW_EPIC_WRAPPER_EXE" no_mirror || return 1
+    fi
+    if [[ "$(sha256sum "$PW_EPIC_WRAPPER_EXE" | awk '{print $1}')" != "$expected_hash" ]] ; then
+        try_remove_file "$PW_EPIC_WRAPPER_EXE"
+        fatal "Epic launcher wrapper checksum verification failed"
+    fi
+}
+
 var_winedlloverride_update () {
     export WINEDLLOVERRIDES="${1}${WINEDLLOVERRIDES:+;$WINEDLLOVERRIDES}"
 }
@@ -4155,7 +4170,12 @@ EOF
         else
             case "${PW_EXE_FILE,,}" in
                 *.exe)
-                    pw_run "${PW_VD_TMP[@]}" ${WINE_WIN_START} "${PW_EXE_FILE}"
+                    if [[ -n "${PW_EPIC_WRAPPER_EXE:-}" ]] ; then
+                        pw_run "${PW_VD_TMP[@]}" "${PW_EPIC_WRAPPER_EXE}" \
+                            "${PW_EXE_FILE}" "$@"
+                    else
+                        pw_run "${PW_VD_TMP[@]}" ${WINE_WIN_START} "${PW_EXE_FILE}"
+                    fi
                 ;;
                 *.bat|*.cmd)
                     PW_USE_TERMINAL=1
diff --git a/build-aux/share/portproton/scripts/start.sh b/build-aux/share/portproton/scripts/start.sh
index bca3bfe0..5c1f90f1 100755
--- a/build-aux/share/portproton/scripts/start.sh
+++ b/build-aux/share/portproton/scripts/start.sh
@@ -73,6 +73,9 @@ fi
 
 export PW_START_PID="$$"
 
+# shellcheck source=/dev/null
+source "${PORT_SCRIPTS_PATH}/var"
+
 read -r -a pw_full_command_line <<< "$0 $*"
 export pw_full_command_line
 export orig_IFS="$IFS"
@@ -119,6 +122,9 @@ elif [[ "$1" =~ ^--(debug|launch|edit-db)$ && "${2,,}" =~ \.(exe|bat|cmd|msi|reg
     elif [[ -f "$OLDPWD/$2" ]] ; then
         PW_EXE_FILE="$(realpath -s "$OLDPWD/$2")"
     fi
+elif [[ "$1" == "--epic-wrapper" && "${2,,}" =~ \.exe$ ]] ; then
+    prepare_epic_wrapper || fatal "Failed to prepare Epic launcher wrapper"
+    PW_EXE_FILE="$(realpath -s "$2")"
 fi
 export PW_EXE_FILE
 
@@ -164,9 +170,6 @@ export PW_VULKAN_DIR="${PORT_WINE_TMP_PATH}/VULKAN"
 create_new_dir "${PW_VULKAN_DIR}"
 
 cd "${PORT_SCRIPTS_PATH}" || fatal "Scripts directory not found: ${PORT_SCRIPTS_PATH}"
-
-# shellcheck source=/dev/null
-source "${PORT_SCRIPTS_PATH}/var"
 # HACK: Avoid inheriting a system scripts cwd in pressure-vessel.
 cd "${XDG_DATA_HOME:-$HOME}" || fatal "Data directory not found: ${XDG_DATA_HOME:-$HOME}"
 
@@ -576,6 +579,10 @@ Usage examples:
         portwine_launch
         stop_portproton
         ;;
+    --epic-wrapper)
+        portwine_launch "${@:3}"
+        stop_portproton
+        ;;
     --stop)
         start_path="$(realpath "$0")"
         pgrep -f -- "${start_path}.*--autoinstall" | while read -r autoinstall_pid ; do
diff --git a/build-aux/share/portproton/scripts/var b/build-aux/share/portproton/scripts/var
index 1b151eb1..8055029e 100755
--- a/build-aux/share/portproton/scripts/var
+++ b/build-aux/share/portproton/scripts/var
@@ -16,6 +16,7 @@ export VKD3D_SAREK_VER="sarek-2.6.0"
 export PW_LSFG_VK_VER="2.0.0-dev25-p11"
 export PW_OPTISCALER_VER="v03-0.9.0-pre8"
 export PW_SPECIALK_VER="SK_26_5_15"
+export PW_EPIC_WRAPPER_VER="0.4"
 export PW_GALLIUM_NINE_VER="0.10"
 export DOTPFX_VER="48v9"
 export DEFPFX_VER="v1"
diff --git a/portprotonqt/main_window.py b/portprotonqt/main_window.py
index 0f25e013..d23ddc19 100644
--- a/portprotonqt/main_window.py
+++ b/portprotonqt/main_window.py
@@ -148,6 +148,7 @@ if [ -n "$LIST" ]; then
 fi
 """
 
+
 class MainWindow(
     MainWindowControlHintsMixin,
     MainWindowAutoInstallTabMixin,
@@ -2754,8 +2755,9 @@ class MainWindow(
             )
             return
         try:
+            wrapper = shlex.join([self.start_sh[0], "--epic-wrapper"])
             command = self.egs_api.build_command([
-                "launch", app_id, "--json", "--wrapper", self.start_sh[0],
+                "launch", app_id, "--json", "--wrapper", wrapper,
                 "--no-wine", "--skip-version-check",
             ])
             process = subprocess.Popen(
-- 
2.54.0