[linux-audio-user] png graphics library for sound apps

[Steve Harris]

On Mon, Jan 27, 2003 at 08:01:50 -0800, Brian Redfern wrote:
> Anyone tried using SDL for UI? Its designed for games but has some
> interesting possibilties with having an animated interface or a full
> screen interface for the audio. The SDL audio libs are too playback
> oriented to be useful for most music software, but you could combine an
> SDL gui with an ALSA backend.

Yes, meterbridge (http://plugin.org.uk/meterbridge/) and pressgang
(http://plugin.org.uk/pressgang/screenshot.png) both use SDL + SDL_image +
JACK.

Its relativly easy to work with, but there are no drawing primitives
(linedraw, circle etc.), only pixel draw and blit.

The UI code for pressgang (not finised BTW incase you're wondering why it
looks wierd) is arranged like a toolkit, but its missing some features to
make it cleanly usable in other code.

- Steve