ES02

#!/bin/bash

#Install dependencies for SDL2
sudo apt-get install -y libudev-dev libasound2-dev libdbus-1-dev libraspberrypi0 libraspberrypi-bin libraspberrypi-dev


#Install dependencies for EmulationStation
#NOTE: if you don't install libudev-dev before building SDL2, the keyboard will mysteriously not work in EmulationStation.
sudo apt-get install -y libboost-system-dev libboost-filesystem-dev libboost-date-time-dev libboost-locale-dev libfreeimage-dev libfreetype6-dev libeigen3-dev libcurl4-openssl-dev libasound2-dev cmake g++-4.7

#Compile and install SDL2
wget http://libsdl.org/release/SDL2-2.0.1.tar.gz
tar xvfz SDL2-2.0.1.tar.gz
rm SDL2-2.0.1.tar.gz
pushd SDL2-2.0.1
# "--disable-video-opengl" is used to disable the software implementation of desktop OpenGL on the Pi
# "--host=*" is used to force the Raspberry Pi host. See issue #395 on GitHub for details on why.
./configure --disable-video-opengl --host=arm-raspberry-linux-gnueabihf
make
sudo make install
popd

#If you like, you can delete the SDL2-2.0.1 folder now (the library has been installed)
sudo rm -rf SDL2-2.0.1

#Compile and install EmulationStation... This will take a very, very long time (multiple hours)
sudo rm -rf EmulationStation
git clone https://github.com/Aloshi/EmulationStation
cd EmulationStation
git checkout unstable
# On the RPi 2, you may need to add '-DFREETYPE_INCLUDE_DIRS=/usr/include/freetype2/' before the period.
# See issue #384 on GitHub for details.
cmake -DCMAKE_CXX_COMPILER=g++-4.7 .
make

# If you want to install emulationstation to /usr/local/bin/emulationstation, which will let you just type 'emulationstation' to run it, you can do...

echo 'Compiled, making install file available.'
echo ' '
sudo make install

# Otherwise, you can run the binary from this folder with: ./emulationstation
# /usr/local/bin/emulationstation/./emulationstation

# Reset GPU RAM to normal values and reboot
if grep -Fxq "gpu_mem = 32" /home/pi/Public/gpu_mem_temporary.txt ; then
  echo 'Using 32 MB of GPU Memory, no changes previously made.'
  sudo rm /home/pi/Public/gpu_mem_temporary.txt
elif grep -Fxq "gpu_mem = 64" /home/pi/Public/gpu_mem_temporary.txt ; then
  echo 'Resetting GPU memory back to 64 MB.'
  sudo sed -i '/gpu_mem = 32/ c\gpu_mem = 64/' /boot/config.txt
  sudo rm /home/pi/Public/gpu_mem_temporary.txt
elif grep -Fxq "gpu_mem = 128" /home/pi/Public/gpu_mem_temporary.txt ; then
  echo 'Resetting GPU memory back to 128 MB.'
  sudo sed -i '/gpu_mem = 32/ c\gpu_mem = 128/' /boot/config.txt
  sudo rm /home/pi/Public/gpu_mem_temporary.txt
elif grep -Fxq "gpu_mem = 256" /home/pi/Public/gpu_mem_temporary.txt ; then
  echo 'Resetting GPU memory back to 256 MB.'
  sudo sed -i '/gpu_mem = 32/ c\gpu_mem = 256/' /boot/config.txt
  sudo rm /home/pi/Public/gpu_mem_temporary.txt
elif grep -Fxq "gpu_mem = 64 - value not found" /home/pi/Public/gpu_mem_temporary.txt ; then
  echo 'Resetting GPU memory back to default.'
  sudo sed -i '/gpu_mem = 32/ c\/' /boot/config.txt
  sudo rm /home/pi/Public/gpu_mem_temporary.txt
else
  echo 'This script was not able to restore settings.'
  echo 'Please reset settings manually by typing in the following:'
  echo 'sudo nano /boot/config.txt'
  echo
  echo 'And type in the appropriate desired value.'
  echo 'i.e. gpu_mem = 64'
  sleep 30s
fi

echo 'Installation completed, configuration required.'
echo 'Reboot to occur in 30 seconds.'
sleep 30s

sudo reboot