mirror of https://github.com/encounter/SDL.git
88 lines
3.2 KiB
Plaintext
88 lines
3.2 KiB
Plaintext
================================================================================
|
|
SDL2 for Raspberry Pi
|
|
================================================================================
|
|
|
|
Requirements:
|
|
|
|
Raspbian (other Linux distros may work as well).
|
|
|
|
================================================================================
|
|
Features
|
|
================================================================================
|
|
|
|
* Works without X11
|
|
* Hardware accelerated OpenGL ES 2.x
|
|
* Sound via ALSA
|
|
* Input (mouse/keyboard/joystick) via EVDEV
|
|
* Hotplugging of input devices via UDEV
|
|
|
|
================================================================================
|
|
Raspbian Build Dependencies
|
|
================================================================================
|
|
|
|
sudo apt-get install libudev-dev libasound2-dev libdbus-1-dev
|
|
|
|
You also need the VideoCore binary stuff that ships in /opt/vc for EGL and
|
|
OpenGL ES 2.x, it usually comes pre installed, but in any case:
|
|
|
|
sudo apt-get install libraspberrypi0 libraspberrypi-bin libraspberrypi-dev
|
|
|
|
================================================================================
|
|
No input
|
|
================================================================================
|
|
|
|
Make sure you belong to the "input" group.
|
|
|
|
sudo usermod -aG input `whoami`
|
|
|
|
================================================================================
|
|
No HDMI Audio
|
|
================================================================================
|
|
|
|
If you notice that ALSA works but there's no audio over HDMI, try adding:
|
|
|
|
hdmi_drive=2
|
|
|
|
to your config.txt file and reboot.
|
|
|
|
Reference: http://www.raspberrypi.org/phpBB3/viewtopic.php?t=5062
|
|
|
|
================================================================================
|
|
Text Input API support
|
|
================================================================================
|
|
|
|
The Text Input API is supported, with translation of scan codes done via the
|
|
kernel symbol tables. For this to work, SDL needs access to a valid console.
|
|
If you notice there's no SDL_TEXTINPUT message being emmited, double check that
|
|
your app has read access to one of the following:
|
|
|
|
* /proc/self/fd/0
|
|
* /dev/tty
|
|
* /dev/tty[0...6]
|
|
* /dev/vc/0
|
|
* /dev/console
|
|
|
|
This is usually not a problem if you run from the physical terminal (as opposed
|
|
to running from a pseudo terminal, such as via SSH). If running from a PTS, a
|
|
quick workaround is to run your app as root or add yourself to the tty group,
|
|
then re login to the system.
|
|
|
|
sudo usermod -aG tty `whoami`
|
|
|
|
The keyboard layout used by SDL is the same as the one the kernel uses.
|
|
To configure the layout on Raspbian:
|
|
|
|
sudo dpkg-reconfigure keyboard-configuration
|
|
|
|
To configure the locale, which controls which keys are interpreted as letters,
|
|
this determining the CAPS LOCK behavior:
|
|
|
|
sudo dpkg-reconfigure locales
|
|
|
|
================================================================================
|
|
Notes
|
|
================================================================================
|
|
|
|
* Building has only been tested natively (i.e. not cross compiled). Cross
|
|
compilation might work though, feedback is welcome!
|