turnip_builder.sh

#!/bin/bash -e
green='\033[0;32m'
red='\033[0;31m'
nocolor='\033[0m'

deps="meson ninja patchelf unzip curl pip flex bison zip git"
workdir="$(pwd)/turnip_workdir"
magiskdir="$workdir/turnip_module"
ndkver="android-ndk-r26c"
sdkver="31"
mesasrc="https://gitlab.freedesktop.org/mesa/mesa.git"


patches=("merge_requests/27847;" "merge_requests/28109;" "merge_requests/28148;" "merge_requests/28210;")
commit=""
commit_short=""
mesa_version=""
vulkan_version=""
clear

# there are 4 functions here, simply comment to disable.
# you can insert your own function and make a pull request.
run_all(){
	check_deps
	prepare_workdir
	build_lib_for_android
	port_lib_for_magisk
}


check_deps(){
	sudo apt remove meson
	pip install meson

	echo "Checking system for required Dependencies ..."
	for deps_chk in $deps;
		do
			sleep 0.25
			if command -v "$deps_chk" >/dev/null 2>&1 ; then
				echo -e "$green - $deps_chk found $nocolor"
			else
				echo -e "$red - $deps_chk not found, can't countinue. $nocolor"
				deps_missing=1
			fi;
		done

		if [ "$deps_missing" == "1" ]
			then echo "Please install missing dependencies" && exit 1
		fi

	echo "Installing python Mako dependency (if missing) ..." $'\n'
	pip install mako &> /dev/null
}



prepare_workdir(){
	echo "Creating and entering to work directory ..." $'\n'
	mkdir -p "$workdir" && cd "$_"

	if [ ! -n "$(ls -d android-ndk*)" ]; then
		echo "Downloading android-ndk from google server (~640 MB) ..." $'\n'
		curl https://dl.google.com/android/repository/"$ndkver"-linux.zip --output "$ndkver"-linux.zip &> /dev/null
		###
		echo "Exracting android-ndk to a folder ..." $'\n'
		unzip "$ndkver"-linux.zip  &> /dev/null
	fi

	if [ -d mesa ]; then
		echo "Removing old mesa ..." $'\n'
		rm -rf mesa
	fi
	
	echo "Cloning mesa ..." $'\n'
	git clone --depth=1 "$mesasrc"  &> /dev/null

	cd mesa

	for patch in ${patches[@]}; do
		echo "Applying patch $patch"
		patch_source="$(echo $patch | cut -d ";" -f 1 | xargs)"
		patch_file="${patch_source#*\/}"
		patch_args=$(echo $patch | cut -d ";" -f 2 | xargs)
		curl https://gitlab.freedesktop.org/mesa/mesa/-/"$patch_source".patch --output "$patch_file".patch  &> /dev/null
	
		git apply $patch_args "$patch_file".patch
	done



	commit_short=$(git rev-parse --short HEAD)
	commit=$(git rev-parse HEAD)
	mesa_version=$(cat VERSION | xargs)
	version=$(awk -F'COMPLETE VK_MAKE_API_VERSION(|)' '{print $2}' <<< $(cat include/vulkan/vulkan_core.h) | xargs)
	major=$(echo $version | cut -d "," -f 2 | xargs)
	minor=$(echo $version | cut -d "," -f 3 | xargs)
	patch=$(awk -F'VK_HEADER_VERSION |\n#define' '{print $2}' <<< $(cat include/vulkan/vulkan_core.h) | xargs)
	vulkan_version="$major.$minor.$patch"
}



build_lib_for_android(){
	echo "Creating meson cross file ..." $'\n'
	ndk="$workdir/$ndkver/toolchains/llvm/prebuilt/linux-x86_64/bin"

	cat <<EOF >"android-aarch64"
[binaries]
ar = '$ndk/llvm-ar'
c = ['ccache', '$ndk/aarch64-linux-android$sdkver-clang']
cpp = ['ccache', '$ndk/aarch64-linux-android$sdkver-clang++', '-fno-exceptions', '-fno-unwind-tables', '-fno-asynchronous-unwind-tables', '-static-libstdc++']
c_ld = 'lld'
cpp_ld = 'lld'
strip = '$ndk/aarch64-linux-android-strip'
pkgconfig = ['env', 'PKG_CONFIG_LIBDIR=NDKDIR/pkgconfig', '/usr/bin/pkg-config']
[host_machine]
system = 'android'
cpu_family = 'aarch64'
cpu = 'armv8'
endian = 'little'
EOF

	echo "Generating build files ..." $'\n'
	meson build-android-aarch64 --cross-file "$workdir"/mesa/android-aarch64 -Dbuildtype=release -Dplatforms=android -Dplatform-sdk-version=$sdkver -Dandroid-stub=true -Dgallium-drivers= -Dvulkan-drivers=freedreno -Dvulkan-beta=true -Dfreedreno-kmds=kgsl -Db_lto=true &> "$workdir"/meson_log

	echo "Compiling build files ..." $'\n'
	ninja -C build-android-aarch64 &> "$workdir"/ninja_log
}



port_lib_for_magisk(){
	echo "Using patchelf to match soname ..."  $'\n'
	cp "$workdir"/mesa/build-android-aarch64/src/freedreno/vulkan/libvulkan_freedreno.so "$workdir"
	cd "$workdir"
	patchelf --set-soname vulkan.adreno.so libvulkan_freedreno.so
	mv libvulkan_freedreno.so vulkan.ad07XX.so

	if ! [ -a vulkan.ad07XX.so ]; then
		echo -e "$red Build failed! $nocolor" && exit 1
	fi

	mkdir -p "$magiskdir" && cd "$_"

        date=$(date +'%b %d, %Y')

	cat <<EOF >"meta.json"
{
  "schemaVersion": 1,
  "name": "Mesa Turnip Driver - $date",
  "description": "Vulkan $vulkan_version",
  "author": "mesa",
  "packageVersion": "1",
  "vendor": "Mesa",
  "driverVersion": "$mesa_version",
  "minApi": 27,
  "libraryName": "vulkan.ad07XX.so"
}
EOF

	echo "Copy necessary files from work directory ..." $'\n'
	cp "$workdir"/vulkan.ad07XX.so "$magiskdir"

	echo "Packing files in to adrenotool package ..." $'\n'
	zip -r "$workdir"/turnip_"$mesa_version"_"$commit_short".zip ./*

	cd "$workdir"
	echo "https://gitlab.freedesktop.org/mesa/mesa/-/commit/$commit" > description
	echo "Turnip Driver - $mesa_version - $commit_short" > release
	echo "$mesa_version"_"$commit_short" > tag

	if ! [ -a "$workdir"/turnip_"$mesa_version"_"$commit_short".zip ];
		then echo -e "$red-Packing failed!$nocolor" && exit 1
		else echo -e "$green-All done, you can take your zip from here;$nocolor" && echo "$workdir"/turnip.zip
	fi
}

run_all