I spent some time experimenting with sound programming in lispbuilder and it was an exercise in frustration to get it working with all platforms.
I'm thinking that wrapping fmod would be better, since this gives you a very solid and free to use library. It is reasonably cheap for indy projects too. On 11 August 2010 10:42, Christoph Senjak <christoph.sen...@googlemail.com>wrote: > Hello. > > Thanks for your detailed answer. > > > As to your question; If you want the best performance then you have to > use sdl- > > mixer as there is quite some overhead involved when lispbuilder-sdl > performs > > the byte-copy over the FFI interface to fill the audio buffer. > > Could I - instead of using SDL-Mixer - just write an own little shared > library that calls into sdl from C directly, and load it through ffi? > I.e. is that possible without having to adapt lispbuilder? > > > What I plan to do in the future is to use pinned vectors which should > hopefully > > make the mixer in lispbuilder-sdl as efficient as sdl-mixer by removing > the > > need for the the byte-copy. > > How about porting the whole thing to the static FFI of ECL? Shouldnt > that make it a lot faster? > > > I hope this hasn't discouraged you. > > Hm well. The situation under CL is quite discouraging, because at > least under windows its quite hard to get over the dependency hell, > when there are no evolved standards of how to deploy the projects, and > half of the software doesnt even compile under cygwin (which is the > poorest solution anyway). Thats one reason why I dropped sdl-image and > lisp-magick from my project and currently try to use my own code to > handle Windows Bitmaps, and why I dont want to use sdl-mixer. But > thats a more general problem. > > Regards, Christoph > _______________________________________________ > application-builder mailing list > application-builder@lispniks.com > http://www.lispniks.com/mailman/listinfo/application-builder >
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