PicoTk
From RTEMSWiki
picoTK is a GPL licensed small footprint C GUI toolkit for embedded systems. It readily works with the RTEMS real time kernel - its minimum complexity and OS independency makes a port to any operating system easy. It is not comparable featurewise to real full blown windowing toolkits like nanoX or Qt/Embedded; but serves the needs for simple memory mapped graphic presentation. picoTK features:
- Draw graphical primitives: points, lines, texts (different fonts, fixed and proportionally spaced using any X-Windows font ), filled rectangles, pixmaps
- Driver is easily adaptable to "homebrew" embedded display hardware based on memory-mapped framebuffer
- Generic drivers for 1, 4 and 8 bit per pixel color depth. Readily supporting VGA mode 0x11 (640x480x2), VGA mode 0x13 (320x200x8) and the VESA linear frame buffer modes (480x640x8 to 1280x1024x8) on graphic cards, which support VBE2.0 or higher.
- Framebuffer emulator (fbe) for Linux using shared memory IPC. This is used for the development of the toolkit and can be used for the development of your application as well. That is you can have a simulation version of your application that run under Linux - and look at its emulated screen. Than you can cross-compile the same application for the target system.
- Tool "fontripper" for converting X11 fonts into picoTK fonts. Use "ppmripper" for converting ppm portable pixmaps into picoTK pixmaps. Fonts and Pixmaps are encoded into linkable binaries, i.e. the system will be compiled into a single binary and does not require to have a filesystem.
- Together with RTEMS (www.oarcorp.com) you can have a nice embedded system graphical output solely using GNU technology.
- Use Linux as a development host for cross-compiling and as an emulation environment.
- Allows easy adaption/porting to your favorite operating system or hardware architecture.
