#!/bin/sh

# -----------------------------
# q2pro configuration script by [SkulleR]
# -----------------------------

# defaults
sources=$(dirname $0)
if [ "$sources" = "." ]; then
    sources=`pwd`
fi
outdir=`pwd`
prefix="/usr/local"
cross_prefix=""
cc="gcc"
make="make"
windres="windres"
strip="strip"
mingw="no"
pngconfig="libpng-config"
exesuffix=""
libsuffix=".so"
dsound="no"
wave="???"
dinput="no"
oss="no"
evdev="no"
zlib="yes"
png="no"
jpeg="no"
sdl="yes"
client="yes"
ref_soft="yes"
ref_gl="yes"
mod_ui="yes"
server="no"
openffa="no"
help="no"
targets=""
executables=""
libraries=""
hardlink="no"
asm="no"
gldriver="libGL.so"
indriver=""
homedir=".q2pro"
defcfg="/etc/default/q2pro"
asmflags=""
logfile="console.log"
cfgfile="config.cfg"
defcfg="default.cfg"
autocfg="autoexec.cfg"
histfile="history.txt"
revision="165"
tmpc="/tmp/q2pro-${RANDOM}.c"
tmpo="/tmp/q2pro-${RANDOM}.o"

if [ -z "$CFLAGS" ]; then
    CFLAGS="-ffast-math -O2"
fi

# detect host CPU
cpu=`uname -m`
case $cpu in
i386|i486|i586|i686)
cpu="i386"
asm="yes"
;;
ia64)
cpu="ia64"
;;
x86_64|amd64)
cpu="x86_64"
;;
*)
cpu="unknown"
;;
esac

# detect host OS
targetos=`uname -s`
case $targetos in
CYGWIN*)
targetos="Windows"
mingw="yes"
sdl="no"
wave="yes"
CFLAGS="-mno-cygwin $CFLAGS"
;;
MINGW*)
targetos="Windows"
mingw="yes"
sdl="no"
wave="yes"
;;
*BSD)
make="gmake"
oss="yes"
;;
Linux)
oss="yes"
evdev="yes"
;;
esac

#parse options
for opt do
    case $opt in
    --help|-h) help="yes"
    ;;
    --sources=*) sources=`echo $opt | cut -d '=' -f 2`
    ;;
    --prefix=*) prefix=`echo $opt | cut -d '=' -f 2`
    ;;
    --cross-prefix=*) cross_prefix=`echo $opt | cut -d '=' -f 2`
    ;;
    --enable-mingw) mingw="yes" ; sdl="no"
    ;;
    --cc=*) cc=`echo $opt | cut -d '=' -f 2`
    ;;
    --make=*) make=`echo $opt | cut -d '=' -f 2`
    ;;
    --windres=*) windres=`echo $opt | cut -d '=' -f 2`
    ;;
    --strip=*) strip=`echo $opt | cut -d '=' -f 2`
    ;;
    --hardlink) hardlink="yes"
    ;;
    --disable-client) client="no"
    ;;
    --enable-server) server="yes"
    ;;
    --enable-openffa) openffa="yes"
    ;;
    --enable-dsound) dsound="yes"
    ;;
    --enable-dinput) dinput="yes"
    ;;
    --disable-wave) wave="no"
    ;;
    --disable-oss) oss="no"
    ;;
    --disable-zlib) zlib="no"
    ;;
    --enable-png) png="yes"
    ;;
    --enable-jpeg) jpeg="yes"
    ;;
    --disable-asm) asm="no"
    ;;
    *) echo "Unknown option: $opt (try --help)" && exit 1
    ;;
    esac
done

if [ "$help" = "yes" ]; then
echo "Usage: $0 [options]"
echo ""
echo "Options:"
echo "  --help                      print this message"
echo "  --prefix=PREFIX             install in PREFIX [$prefix]"
echo "  --cross-prefix=PREFIX       add PREFIX to compile tools [$cross_prefix]"
echo "  --cc=CC                     use C compiler [$cc]"
echo "  --make=MAKE                 use MAKE processor [$make]"
echo "  --windres=WINDRES           use RC compiler [$windres]"
echo "  --hardlink                  build hard linked client"
echo "  --disable-client            do not build client"
echo "  --enable-server             build dedicated server"
echo "  --enable-openffa            build OpenFFA deathmatch mod"
echo "  --enable-mingw              enable Windows build"
echo "  --enable-dsound             enable DirectSound driver"
echo "  --enable-dinput             enable DirectInput driver"
echo "  --disable-wave              disable WAVE sound driver"
echo "  --disable-oss               disable OSS driver"
echo "  --disable-evdev             disable Evdev driver"
echo "  --disable-zlib              disable linking with zlib"
echo "  --enable-png                enable linking with PNG library"
echo "  --enable-jpeg               enable linking with JPEG library"
echo "  --disable-asm               disable i386 assembly optimizations"
echo ""
echo "Object files are built in the directory from which configure is run."
exit 1
fi

if [ "$mingw" = "yes" ]; then
    targetos="Windows"
    pathsep='\\'
    exesuffix=".exe"
    libsuffix=".dll"
    oss="no"
    evdev="no"
    gldriver="opengl32"
    gamelib="gamex86.dll"
    exported="__attribute__((dllexport))"
    homedir=""
    asmflags="-DUNDERSCORES"
    cfgfile="q2config.cfg"
    if [ "$wave" = "???" ]; then
        wave="yes"
    fi
else
    pathsep="/"
    gamelib="game$cpu.so"
    exported="__attribute__((visibility(\"default\")))"

    datadir="$prefix/share/games/quake2"
    libdir="$prefix/lib/games/quake2"
    refdir="$prefix/lib/games/q2pro"
    bindir="$prefix/games"
    mandir="$prefix/share/man/man6"

# check if -fvisibility is supported
    echo "int main(){return 0;}" > $tmpc
    if $cc -o $tmpo -fvisibility\=hidden $tmpc 2>/dev/null ; then
        CFLAGS="-fvisibility=hidden $CFLAGS"
    fi
    rm -f $tmpc $tmpo

    LDFLAGS="-Wl,--no-undefined $LDFLAGS"
fi

if [ ! -z "$cross_prefix" ]; then
    cc="$cross_prefix-$cc"
    windres="$cross_prefix-$windres"
    strip="$cross_prefix-$strip"
    pngconfig="$cross_prefix-$pngconfig"
fi

echo "Build client       $client"
if [ "$client" = "yes" ]; then
    if [ "$hardlink" = "yes" ]; then
        echo "Hard linked        $hardlink"
    else
        echo "Software refresh   $ref_soft"
        echo "OpenGL refresh     $ref_gl"
        echo "Build UI module    $mod_ui"
    fi
fi
echo "Build server       $server"
echo "Build OpenFFA      $openffa"
if [ "$mingw" = "no" ]; then
    echo "Install prefix     $prefix"
    echo "Data directory     $datadir"
    echo "Game libraries     $libdir"
    if [ "$client" = "yes" ]; then
        echo "Refresh libraries  $refdir"
    fi
    echo "Binaries           $bindir"
    echo "Man pages          $mandir"
fi
echo "zlib support       $zlib"
if [ "$client" = "yes" ]; then
    echo "PNG support        $png"
    echo "JPEG support       $jpeg"
    if [ "$mingw" = "yes" ]; then
        echo "DInput support     $dinput"
        echo "DSound support     $dsound"
        echo "WAVE sound support $wave"
    else
        echo "OSS support        $oss"
        echo "Evdev support      $evdev"
    fi
fi
test "$cpu" = "i386" && echo "i386 assembly      $asm"

CFLAGS="-I\$(OUTDIR) -MF \$*.d -MMD -Wall -Wno-missing-braces -Wstrict-prototypes -pipe -ffloat-store -fno-strict-aliasing $CFLAGS"
#LDFLAGS="$LDFLAGS"

config_mk="config.mk"
config_h="config.h"

echo "# Generated by configure - do not modify" > $config_mk
echo "// Generated by configure - do not modify" > $config_h

test "$mingw" = "yes" && echo "MINGW=$mingw" >> $config_mk
echo "CC=$cc" >> $config_mk
echo "WINDRES=$windres" >> $config_mk
echo "STRIP=$strip" >> $config_mk
echo "MAKE=$make" >> $config_mk
echo "SRCDIR=$sources" >> $config_mk
echo "OUTDIR=$outdir" >> $config_mk
echo "EXESUFFIX=$exesuffix" >> $config_mk
echo "LIBSUFFIX=$libsuffix" >> $config_mk
echo "#define LIBSUFFIX \"$libsuffix\"" >> $config_h
echo "VPATH=\$(SRCDIR)/source \$(SRCDIR)/asm" >> $config_mk
echo "CFLAGS=$CFLAGS" >> $config_mk
echo "LDFLAGS=$LDFLAGS" >> $config_mk
test "$mingw" = "yes" && echo "RESFLAGS=-I\$(OUTDIR) -I\$(SRCDIR)/source" >> $config_mk
test "$asm" = "yes" && echo "ASMFLAGS=$asmflags" >> $config_mk

if [ "$client" = "yes" ]; then
    targets="$targets q2pro"
    executables="$executables q2pro$exesuffix"

    if [ "$hardlink" = "no" ]; then
        if [ "$ref_soft" = "yes" ]; then
            targets="$targets ref_soft"
            libraries="$libraries ref_soft$libsuffix"
        fi

        if [ "$ref_gl" = "yes" ]; then
            targets="$targets ref_gl"
            libraries="$libraries ref_gl$libsuffix"
        fi

        if [ "$mod_ui" = "yes" ]; then
            targets="$targets mod_ui"
            libraries="$libraries mod_ui$libsuffix"
        fi
    fi
else
    sdl="no"
fi

if [ "$server" = "yes" ]; then
    targets="$targets q2proded"
    executables="$executables q2proded$exesuffix"
fi

if [ "$openffa" = "yes" ]; then
    targets="$targets openffa"
    libraries="$libraries $gamelib"
fi

echo "TARGETS=$targets" >> $config_mk
echo "BINARIES=$executables $libraries" >> $config_mk
echo "EXECUTABLES=$executables" >> $config_mk
echo "LIBRARIES=$libraries" >> $config_mk

echo "REVISION=$revision" >> $config_mk
echo "#define REVISION $revision" >> $config_h
echo "#define VERSION \"r$revision\"" >> $config_h

if [ "$mingw" = "no" ]; then
    echo "DATADIR=$datadir" >> $config_mk
    echo "#define DATADIR \"$datadir\"" >> $config_h

    echo "LIBDIR=$libdir" >> $config_mk
    echo "#define LIBDIR \"$libdir\"" >> $config_h

    echo "REFDIR=$refdir" >> $config_mk
    echo "#define REFDIR \"$refdir\"" >> $config_h

    echo "BINDIR=$bindir" >> $config_mk
    echo "#define BINDIR \"$bindir\"" >> $config_h

    echo "MANDIR=$mandir" >> $config_mk

    echo "#define HOMEDIR \"$homedir\"" >> $config_h
fi

echo "#define EXPORTED $exported" >> $config_h
echo "#define QDECL" >> $config_h

echo "GAMELIB=$gamelib" >> $config_mk
echo "#define GAMELIB \"$gamelib\"" >> $config_h

echo "#define COM_LOGFILE_NAME \"$logfile\"" >> $config_h
echo "#define COM_CONFIG_NAME \"$cfgfile\"" >> $config_h
echo "#define COM_DEFAULTCFG_NAME \"$defcfg\"" >> $config_h
echo "#define COM_AUTOEXECCFG_NAME \"$autocfg\"" >> $config_h
echo "#define COM_HISTORYFILE_NAME \"$histfile\"" >> $config_h

test "$mingw" = "no" && echo "#define DEFCFG \"$defcfg\"" >> $config_h

echo "#define CPUSTRING \"$cpu\"" >> $config_h
echo "#define BUILDSTRING \"$targetos\"" >> $config_h

echo "#define PATH_SEP_CHAR '$pathsep'" >> $config_h
echo "#define PATH_SEP_STRING \"$pathsep\"" >> $config_h

echo "#define DEFAULT_OPENGL_DRIVER \"$gldriver\"" >> $config_h

echo "#define DEFAULT_INPUT_DRIVER \"$indriver\"" >> $config_h

if [ "$zlib" = "yes" ]; then
    echo "USE_ZLIB=yes" >> $config_mk
    echo "ZLIB_LDFLAGS=-lz" >> $config_mk
    echo "ZLIB_CFLAGS=" >> $config_mk
    echo "#define USE_ZLIB 1" >> $config_h
fi

if [ "$png" = "yes" ]; then
    echo "USE_PNG=yes" >> $config_mk
    echo "PNG_LDFLAGS=$($pngconfig --libs)" >> $config_mk
    echo "PNG_CFLAGS=$($pngconfig --cflags)" >> $config_mk
    echo "#define USE_PNG 1" >> $config_h
fi

if [ "$jpeg" = "yes" ]; then
    echo "USE_JPEG=yes" >> $config_mk
    echo "JPEG_LDFLAGS=-ljpeg" >> $config_mk
    echo "JPEG_CFLAGS=" >> $config_mk
    echo "#define USE_JPEG 1" >> $config_h
fi

if [ "$sdl" = "yes" ]; then
    echo "USE_SDL=yes" >> $config_mk
    echo "SDL_LDFLAGS=`sdl-config --libs`" >> $config_mk
    echo "SDL_CFLAGS=`sdl-config --cflags`" >> $config_mk
    echo "#define USE_SDL 1" >> $config_h
fi

if [ "$oss" = "yes" ]; then
    echo "USE_OSS=yes" >> $config_mk
    echo "#define USE_OSS 1" >> $config_h
fi

if [ "$evdev" = "yes" ]; then
    echo "USE_EVDEV=yes" >> $config_mk
    echo "#define USE_EVDEV 1" >> $config_h
fi

if [ "$wave" = "yes" ]; then
    echo "USE_WAVE=yes" >> $config_mk
    echo "#define USE_WAVE 1" >> $config_h
fi

if [ "$dsound" = "yes" ]; then
    echo "USE_DSOUND=yes" >> $config_mk
    echo "#define USE_DSOUND 1" >> $config_h
fi

if [ "$dinput" = "yes" ]; then
    echo "USE_DINPUT=yes" >> $config_mk
    echo "#define USE_DINPUT 1" >> $config_h
fi

if [ "$asm" = "yes" ]; then
    echo "USE_ASM=yes" >> $config_mk
    echo "#define USE_ASM 1" >> $config_h
fi

echo "#define USE_MAPCHECKSUM 1" >> $config_h
echo "#define USE_AUTOREPLY 1" >> $config_h

if [ "$hardlink" = "yes" ]; then
    echo "REF_HARD_LINKED=yes" >> $config_mk
    echo "#define REF_HARD_LINKED 1" >> $config_h

    echo "UI_HARD_LINKED=yes" >> $config_mk
    echo "#define UI_HARD_LINKED 1" >> $config_h

    echo "#define OPENGL_RENDERER 1" >> $config_h
    echo "#define TRUECOLOR_RENDERER 1" >> $config_h
    echo "#define DEFAULT_REFRESH_DRIVER \"gl\"" >> $config_h
else
    echo "#define DEFAULT_REFRESH_DRIVER \"soft\"" >> $config_h
fi

for t in $targets ; do
    mkdir -p .$t ;
done