Sure. I have uploaded the source here; http://www.balooga.com/lispbuilder/lispbuilder-sdl-glue.zip
- Luke On Sat, 17 Jan 2009 23:49:25 -0800, Elliott Slaughter <[email protected]> wrote: > Hi, > Can you include or point me to the source for lispbuilder-sdl-glue.dll? I > can't seem to find it anywhere. > > Thanks. > > On Sat, Jan 17, 2009 at 11:06 PM, Luke Crook <[email protected]> wrote: > >> The SDL library creates a new thread to process audio data. It is this >> thread that performs callbacks into the Lisp process to request audio >> data. Because the audio thead is unknown to the Lisp process, a hang or >> a >> crash results. Lispworks supports callbacks from foreign unknown threads >> so this is not an issue, but SBCL, ECL & CLISP do not. I'm not sure what >> the situation is under Linux & OS X. >> >> One alternative is a wrapper that handles the callback, then copies the >> audio data to a global variable and sleeps until the buffer is filled by >> lispbuilder-sdl. lispbuilder-sdl reads a variable each game loop to >> determine if the audio buffer is empty, fills the buffer if necessary >> and >> then wakes up the glue library which then copies audio data from the >> global variable into the callback. A disadvantage is that audio will >> break >> up if the frame rate is too low and the audio buffer too small. 15 fps >> and >> above seems to work fine, but 10 fps is too slow. >> >> I have written a glue library to do this (glue-lispbuilder-sdl.dll). It >> is >> Windows only at the momemnt. If someone can run MIXER-TEST & SQUASHED in >> OS X & Linux and let me know if these crash then I'll create the >> necessary >> makefile for the glue library. >> >> This is now in SVN. The glue DLL is available from >> code.google.com/p/lispbuilder/downloads/list in the windows binary >> archive, win32-lispbuilder-sdl-binaries-1.2.12.tgz. >> >> - Luke >> _______________________________________________ >> application-builder mailing list >> [email protected] >> http://www.lispniks.com/mailman/listinfo/application-builder >> > > > _______________________________________________ application-builder mailing list [email protected] http://www.lispniks.com/mailman/listinfo/application-builder
