ports: add GZDoom as a Doom source port

Add back GZDoom, the feature centric port for all Doom engine games, based on ZDoom. Since LZDoom is no longer developed, let's try to add back the few still active Doom projects.

Since it was removed, besides countless other features addded, it has gained a GLES2/OpenGL2 + Vulkan renderer. Unfortunately, 32bit support has been dropped entirely since 4.9, so 32bit platforms will have to use the 4.8.0 release.

Recent versions auto-detect the available video renderers and can switch to the less intesive GLES2/GL2 renderer, but for old versions (32bit) the preferred renderer has to be set via `vid_preferbackend`.

Author: cmitu

scriptmodules/ports/gzdoom.sh

@@ -0,0 +1,110 @@
+#!/usr/bin/env bash
+
+# This file is part of The RetroPie Project
+#
+# The RetroPie Project is the legal property of its developers, whose names are
+# too numerous to list here. Please refer to the COPYRIGHT.md file distributed with this source.
+#
+# See the LICENSE.md file at the top-level directory of this distribution and
+# at https://raw.githubusercontent.com/RetroPie/RetroPie-Setup/master/LICENSE.md
+#
+
+rp_module_id="gzdoom"
+rp_module_desc="GZDoom is a feature centric port for all Doom engine games, based on ZDoom"
+rp_module_licence="GPL3 https://raw.githubusercontent.com/ZDoom/gzdoom/master/LICENSE"
+rp_module_repo="git https://github.com/ZDoom/gzdoom :_get_version_gzdoom"
+rp_module_section="opt"
+rp_module_flags="sdl2 !armv6"
+
+function _get_version_gzdoom() {
+    # default GZDoom version
+    local gzdoom_version="g4.11.3"
+
+    # 32 bit is no longer supported since g4.8.1
+    isPlatform "32bit" && gzdoom_version="g4.8.0"
+    echo $gzdoom_version
+}
+
+function depends_gzdoom() {
+    local depends=(
+        cmake libfluidsynth-dev libsdl2-dev libmpg123-dev libsndfile1-dev libbz2-dev
+        libopenal-dev libjpeg-dev libgl1-mesa-dev libasound2-dev libmpg123-dev libsndfile1-dev
+        libvpx-dev libwebp-dev pkg-config
+        zlib1g-dev)
+    getDepends "${depends[@]}"
+}
+
+function sources_gzdoom() {
+    gitPullOrClone
+    # add 'ZMusic' repo
+    cd "$md_build"
+    gitPullOrClone zmusic https://github.com/ZDoom/ZMusic
+    # workaround for Ubuntu 20.04 older vpx/wepm dev libraries
+    sed -i 's/IMPORTED_TARGET libw/IMPORTED_TARGET GLOBAL libw/' CMakeLists.txt
+}
+
+function build_gzdoom() {
+    mkdir -p release
+
+    # build 'ZMusic' first
+    pushd zmusic
+    cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="$md_build/release/zmusic" .
+    make
+    make install
+    popd
+
+    cd release
+    local params=(-DCMAKE_INSTALL_PREFIX="$md_inst" -DPK3_QUIET_ZIPDIR=ON -DCMAKE_BUILD_TYPE=Release -DDYN_OPENAL=ON -DCMAKE_PREFIX_PATH="$md_build/release/zmusic")
+    ! hasFlag "vulkan" && params+=(-DHAVE_VULKAN=OFF)
+
+    cmake "${params[@]}" ..
+    make
+    md_ret_require="$md_build/release/$md_id"
+}
+
+function install_gzdoom() {
+    md_ret_files=(
+        'release/brightmaps.pk3'
+        'release/gzdoom'
+        'release/gzdoom.pk3'
+        'release/lights.pk3'
+        'release/game_support.pk3'
+        'release/game_widescreen_gfx.pk3'
+        'release/soundfonts'
+        "release/zmusic/lib/libzmusic.so.1"
+        "release/zmusic/lib/libzmusic.so.1.1.12"
+        'README.md'
+    )
+}
+
+function add_games_gzdoom() {
+    local params=("-fullscreen")
+    local launcher_prefix="DOOMWADDIR=$romdir/ports/doom"
+
+    # FluidSynth is too memory/CPU intensive, use OPL emulation for MIDI
+    if isPlatform "arm"; then
+        params+=("+set snd_mididevice -3")
+    fi
+    # when using the 32bit version on GLES platforms, pre-set the renderer
+    if isPlatform "32bit" && hasFlag "gles"; then
+        params+=("+set vid_preferbackend 2")
+    fi
+
+    if isPlatform "kms"; then
+        params+=("-width %XRES%" "-height %YRES%")
+    fi
+
+    _add_games_lr-prboom "$launcher_prefix $md_inst/$md_id -iwad %ROM% ${params[*]}"
+}
+
+function configure_gzdoom() {
+    mkRomDir "ports/doom"
+
+    moveConfigDir "$home/.config/$md_id" "$md_conf_root/doom"
+
+    [[ "$md_mode" == "remove" ]] && return
+
+    game_data_lr-prboom
+    add_games_${md_id}
+}
+