Raspberry Pi 2 Notes

Requirements

  • Raspbian Jessie or later
  • CMake 3.0+
  • Clang 3.5.0+

CMake

To install CMake:

sudo apt-get install cmake

Clang

Cinder should be built using the version of Clang (v3.5.0) packaged for Raspbian Jessie. Install it using apt-get:

sudo apt-get install clang

You can also download the binaries for Clang from here. For the Raspberry Pi 2, download Clang for armv7a Linux.

To set Clang as the default compiler, select /usr/bin/clang++ when prompted by this command: 

sudo update-alternatives --config c++

If you have special reason to use GCC instead of Clang, the CPU/GPU memory split will need to be adjusted. The default settings for the memory split causes a hard crash when building Cinder. Please see the Raspberry Pi 2 documentation for instructions.

NOTE: Cinder has not been tested using GCC 5.x on Raspberry Pi 2.

Cinder Dependencies

sudo apt-get install libxcursor-dev \
libgles2-mesa-dev \
zlib1g-dev \
libfontconfig1-dev \
libmpg123-dev \
libsndfile1 \
libsndfile1-dev \
libpulse-dev \
libasound2-dev \
libcurl4-gnutls-dev \
libgstreamer1.0-dev \
libgstreamer-plugins-bad1.0-dev \
libgstreamer-plugins-base1.0-dev \
gstreamer1.0-libav \
gstreamer1.0-alsa \
gstreamer1.0-pulseaudio \
gstreamer1.0-plugins-bad

Building Cinder

Fetching and Building Cinder

git clone --recursive https://github.com/cinder/Cinder.git
cd Cinder
mkdir build && cd build
cmake .. -DCINDER_TARGET_GL=es2-rpi
make -j 3

Building and Running BasicApp

Building

cd samples/BasicApp/proj/cmake
mkdir build && cd build
cmake .. -DCINDER_TARGET_GL=es2-rpi
make

Running

Starting from samples/BasicApp/proj/cmake/build:

./Debug/BasicApp

Exiting

Hit the Esc key to exit the BasicApp. Cinder for Linux on the Raspberry Pi 2 currently has Esc hardcoded to exit an application. Otherwise it's non-trivial to return to the OS. A future version will offer a more graceful way to handle this.

Troubleshooting

Audio

Starting the pulsedeamon

Raspbian ships with Pulse Audio installed, however you must start the pulsedeamon before you can use audio in your application. Do that by running the following:

pulseaudio -D

No Output Using 3.5mm headphone jack

Try the following, it will force output to the 3.5mm jack (more information here):

sudo amixer cset numid=3 1