#!/bin/bash -xe

# Go to http://downloads.raspberrypi.org/raspios_armhf/images/ to figure out the latest release.
WHERE=/opt/cross/pi
DIST=buster
RASPI=http://downloads.raspberrypi.org/raspios_armhf/images/raspios_armhf-2020-08-24/2020-08-20-raspios-buster-armhf.zip


MY_UID=`id -u`
MY_GID=`id -g`

sudo mkdir -p ${WHERE}
sudo chown -R ${MY_UID}:${MY_GID} ${WHERE}
pushd ${WHERE}

IMAGE=${RASPI##*/}

wget ${RASPI}

mkdir -p ${DIST}

7z e ${IMAGE}
rm ${IMAGE}

7z e ${IMAGE%.*}.img 1.img
rm ${IMAGE%.*}.img

mkdir -p /tmp/mnt-${DIST}
sudo mount 1.img /tmp/mnt-${DIST}
sudo cp -ax /tmp/mnt-${DIST}/. ${DIST}/
sudo chown -R ${MY_UID}:${MY_GID} ${DIST}
sudo umount /tmp/mnt-${DIST}

sed -i 's/#deb/deb/g' buster/etc/apt/sources.list
sed -i 's/#deb/deb/g' buster/etc/apt/sources.list.d/raspi.list

proot -S ${DIST} -q qemu-arm apt-get -y update
proot -S ${DIST} -q qemu-arm apt-get -y upgrade
proot -S ${DIST} -q qemu-arm apt-get -y build-dep libsdl2 libsdl2-image libsdl2-mixer libsdl2-ttf ffmpeg
proot -S ${DIST} -q qemu-arm apt-get -y install libgbm-dev libxv-dev libx11-dev libxext-dev libxi-dev
proot -S ${DIST} -q qemu-arm apt-get -y install libomxil-bellagio-bin libomxil-bellagio-dev libraspberrypi-dev
proot -S ${DIST} -q qemu-arm apt-get -y install libopenal-dev libasound2-dev

touch ${DIST}/usr/include/immintrin.h

git clone https://github.com/raspberrypi/tools.git

wget https://raw.githubusercontent.com/riscv/riscv-poky/master/scripts/sysroot-relativelinks.py
chmod +x sysroot-relativelinks.py
./sysroot-relativelinks.py buster/

export PATH=${PATH}:${WHERE}/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian/bin

popd