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{ lib, stdenv, buildGame, fetchHumbleBundle, makeWrapper, unzip, imagemagick
, mono, SDL2, SDL2_image, openal, libvorbis, libGL
}:
buildGame rec {
name = "bastion-${version}";
version = "20161016";
src = fetchHumbleBundle {
name = "bastion-20161016.bin";
machineName = "bastion_linux";
downloadName = "Download";
md5 = "19fea173ff2da0f990f60bd5e7c3b237";
};
unpackCmd = "${unzip}/bin/unzip -qq \"$curSrc\" 'data/*' || :";
nativeBuildInputs = [ makeWrapper imagemagick ];
libDir =
if stdenv.system == "i686-linux" then "lib"
else if stdenv.system == "x86_64-linux" then "lib64"
else throw "Unsupported architecture ${stdenv.system}.";
buildPhase = let
dllmap = {
SDL2 = "${SDL2}/lib/libSDL2.so";
SDL2_image = "${SDL2_image}/lib/libSDL2_image.so";
soft_oal = "${openal}/lib/libopenal.so";
libvorbisfile = "${libvorbis}/lib/libvorbisfile.so";
MojoShader = "$out/libexec/bastion/libmojoshader.so";
};
in lib.concatStrings (lib.mapAttrsToList (dll: target: ''
sed -i -e '/<dllmap.*dll="${dll}\.dll".*os="linux"/ {
s!target="[^"]*"!target="'"${target}"'"!
}' FNA.dll.config
'') dllmap) + ''
# This is not needed, so let's remove it.
sed -i -e '/libtheoraplay/d' FNA.dll.config
# We don't want any Steam libraries, that's why we bought the non-DRM
# version, right?
cc -Wall -std=c11 -shared -xc - -o "$libDir/libSteamStub.so" -fPIC <<EOF
#include <stddef.h>
int SteamAPI_Init(void) { return 0; }
void SteamAPI_Shutdown(void) {}
void SteamAPI_RunCallbacks() {}
/* All the symbols for the global accessors for Steamworks C++ APIs */
${lib.concatMapStrings (sym: ''
void *Steam${sym}(void) { return NULL; }
'') [
"Client" "User" "Friends" "Utils" "Matchmaking" "UserStats" "Apps"
"Networking" "MatchmakingServers" "RemoteStorage" "Screenshots" "HTTP"
"UnifiedMessages" "Controller" "UGC" "AppList" "Music" "MusicRemote"
"HTMLSurface" "Inventory" "Video"
]}
EOF
patchelf --remove-needed libsteam_api.so "$libDir/libSteamWrapper.so"
patchelf --add-needed libSteamStub.so "$libDir/libSteamWrapper.so"
# FMOD Ex tries to run /bin/sh -c 'pulseaudio --check > /dev/null 2>&1', so
# we need to prevent this by replacing the system() call with a successful
# return value (0). If someone doesn't have or want to have PulseAudio,
# FMOD Ex still falls back to ALSA if it can't load libpulse-simple.so.
if [ "$libDir" = lib64 ]; then
addr="$(objdump -d lib64/libfmodex.so | sed -n -e '
/callq.*system@plt/s/^ *\([^:]\+\).*/\1/p
')"
# This is quite easy, just replace the system() call with XOR EAX so we
# get a return value of 0 and pad the rest with NOP.
offset=$(("0x$addr"))
( printf '\x31\xc0' # XOR the EAX register
printf '\x90\x90\x90' # Fill with NOPs
) | dd of="$libDir/libfmodex.so" obs=1 seek=$offset count=5 conv=notrunc
else
relocSystem="$(readelf -r lib/libfmodex.so | sed -n -e '
/system@/s/^0*\([^ ]\+\).*/\1/p
')"
addr="$(objdump -d lib/libfmodex.so | sed -n -e '
/call *'"$relocSystem"' /s/^ *\([^:]\+\).*/\1/p
')"
# For the 32 bit library it's not so easy as the 4 bytes coming after the
# CALL opcode will be replaced by the dynamic linker, so we just XOR the
# EAX register with the relocation address and replace the TEST opcode
# afterwards.
offset=$(("0x$addr"))
( printf '\x35\xfc\xff\xff\xff' # XOR EAX with the relocation address
printf '\x39\xc0' # CMP EAX, EAX
) | dd of="$libDir/libfmodex.so" obs=1 seek=$offset conv=notrunc
fi
# For the Desktop icon
convert Bastion.bmp Bastion.png
'';
installPhase = ''
for lib in fmodex mojoshader SteamWrapper SteamStub; do
install -vD "$libDir/lib$lib.so" "$out/libexec/bastion/lib$lib.so"
done
cp -rvt "$out/libexec/bastion" Bastion.exe FNA.dll* \
FMOD.dll Lidgren.Network.dll MonoGame.Framework.Net.dll
mkdir -p "$out/share"
cp -rv Content "$out/share/bastion"
cp -vt "$out/libexec/bastion" Bastion.bmp
ln -s "$out/share/bastion" "$out/libexec/bastion/Content"
makeWrapper ${lib.escapeShellArg mono}/bin/mono "$out/bin/bastion" \
--add-flags "$out/libexec/bastion/Bastion.exe" \
--set SDL_OPENGL_LIBRARY ${lib.escapeShellArg "${libGL}/lib/libGL.so"} \
--run "cd '$out/libexec/bastion'"
install -vD -m 0644 Bastion.png "$out/share/icons/bastion.png"
mkdir -p "$out/share/applications"
cat > "$out/share/applications/bastion.desktop" <<EOF
[Desktop Entry]
Name=Bastion
Type=Application
Version=1.1
Exec=$out/bin/bastion
Icon=$out/share/icons/bastion.png
Categories=Game
EOF
'';
# Add all of the libraries in $runtimeDependencies to the FMOD Ex library,
# because it tries to dlopen() libpulse-simple and libasound.so and we don't
# have a main ELF binary where we could add that search path.
postFixup = ''
rpath="$(patchelf --print-rpath "$out/libexec/bastion/libfmodex.so")"
for dep in $runtimeDependencies; do
rpath="$rpath${rpath:+:}$dep/lib"
done
patchelf --set-rpath "$rpath" "$out/libexec/bastion/libfmodex.so"
'';
sandbox.paths.required = [ "$XDG_DATA_HOME/Bastion" ];
}
|
