#! /bin/bash

# SDL2 
# Source: https://www.libsdl.org/release/SDL2-2.28.5.tar.gz
#
# $BUILD = Directory to temporarily install
# $PKGS  = Directory to store built packages
#
# DEPS
# Required:     NONE
# Recommended:  NONE
# Optional:     ALSA Doxygen iBus NASM PulseAudio libsamplerate libsndio
# Optinal:      XOrg, DirectFB, fcitx, pipewire

# If optimizing, use these flags
export  CFLAGS="-march=native -mtune=native -pipe "
export CFLAGS+="-O3 -Ofast -falign-functions=32 -ffat-lto-objects "
export CFLAGS+="-flto=auto -fno-semantic-interposition -fstack-protector-strong "
export CFLAGS+="-fzero-call-used-regs=used -mprefer-vector-width=256"
export CXXFLAGS=$CFLAGS
export LDFLAGS="-flto=4 -Wl,-O2 -Wl,--as-needed"

#patch -Np1 -i ../patches/sdl2-alpine/0001-src-video-directfb-SDL_DirectFB_render.c-fix-build.patch
#patch -Np1 -i ../patches/sdl2-alpine/directfb-cflags.patch
#patch -Np1 -i ../patches/sdl2-alpine/khronos.patch
mkdir BUILD && cd BUILD &&

# NOTE: If Xorg libraries are not installed in /usr, add this option:
#       -DCMAKE_SYSTEM_PREFIX_PATH=/opt/Xorg

cmake   -DCMAKE_INSTALL_PREFIX=/usr \
        -DCMAKE_INSTALL_LIBDIR=lib \
	-DCMAKE_BUILD_TYPE=None \
	-DBUILD_SHARED_LIBS=True \
	-DCMAKE_SYSTEM_NAME=Linux \
	-DCMAKE_HOST_SYSTEM_NAME=Linux \
	-DSDL_TEST=OFF \
	-DALSA=ON \
	-DJACK=OFF \
	-DCLOCK_GETTIME=ON \
	-DARTS=OFF \
	-DESD=OFF \
	-DNAS=OFF \
	-DRPATH=OFF \
	-DSDL_X11=ON \
	-DSDL_X11_XINPUT=ON \
	-DVIDEO_DIRECTFB=OFF \
	-DVIDEO_WAYLAND=ON \
	-DCMAKE_C_FLAGS="$CFLAGS" \
	-DSDL_STATIC=ON \
	-DSDL_SHARED=ON \
	-DPULSEAUDIO_SHARED=ON .. &&

read -p "Compile?" && make -j2 &&

sudo -S make DESTDIR=$BUILD install &&

cd $BUILD && sudo -S mkdir -v ${BUILD}/install &&
cat > /tmp/slack-desc << "EOF"
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':' except on otherwise blank lines.

    |-----handy-ruler------------------------------------------------------|
SDL2: SDL2 (Simple DirectMedia Layer Version 2)
SDL2:
SDL2: Simple DirectMedia Layer is a cross-platform development library
SDL2: designed to provide low-level access to audio, keyboard, mouse,
SDL2: joystick, and graphics hardware ia via OpenGL. It is used by
SDL2: video playback software, emulators, and games.
SDL2:
SDL2: Homepage: http://www.libsdl.org
SDL2:
SDL2:
SDL2:
EOF
sudo -S mv -v /tmp/slack-desc install/ &&
sudo -S makepkg -l y -c n $PKGS/SDL2-2.28.5-$PSUFFIX &&
sudo -S rm -rf ${BUILD}/*