Yea, I will give it a go...... Trevor
----- Original Message ----- From: "Christopher Faylor" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Wednesday, November 14, 2001 2:00 PM Subject: Re: sound support more info - kde2 porting status -- still looking for a volunteer > This would be trivial to implement. > > I'd appreciate it if someone would take a stab at implementing it. > > cgf > > On Sat, Oct 20, 2001 at 11:50:14PM -0400, Christopher Faylor wrote: > >On Sat, Oct 20, 2001 at 08:47:37PM +0200, Ralf Habacker wrote: > >><snip> > >>> > >>> >6. the sound support of cygwin isn't ready. Especially setting > >>> > of audio buffer size from an application is a problem. > >>> > Look in the thread about the rocksndiamond game started with > >>> > http://sources.redhat.com/ml/cygwin-xfree/2001-q4/msg00171.html. > >>> > >>> I didn't see anything which actually set the blocksize in the code > >>> fragment that you sent to cygwin-apps. I just saw code which read the > >>> block size and said "this should return 512". But, cygwin uses a larger > >>> buffer than that. I don't actually see an ioctl for setting the block > >>> size under linux, but maybe I missed something. > > > >Duh. You even mentioned this in your email. Sorry for missing it. > > > >This looks like more than a simple fix to the fhandler_dsp.cc code but it > >should be pretty easy if anyone wants to tackle it? > > > >Anyone interested in implementing SNDCTL_DSP_SETFRAGMENT? > > > >cgf > >> > >>It's called the fragment size and uses the SNDCTL_DSP_SETFRAGMENT ioctl call. > >>It seems that the lower word contains the log2 of the buffer size and in the > >>higher word the number of buffers are set. Currently Cygwin ignores this call. > >> > >> /* Example for fragment specification: > >> - 2 buffers / 512 bytes (giving 1/16 second resolution for 8 kHz) > >> - (with stereo the effective buffer size will shrink to 256) > >> => fragment_size = 0x00020009 */ > >> > >> if (ioctl(audio.device_fd,SNDCTL_DSP_SETFRAGMENT,&fragment_spec) < 0) > >> Error(ERR_EXIT_SOUND_SERVER, > >> "cannot set fragment size of /dev/dsp - no sounds"); > >> > >>Ralf > > > >-- > >[EMAIL PROTECTED] Red Hat, Inc. > >http://sources.redhat.com/ http://www.redhat.com/ > > -- > [EMAIL PROTECTED] Red Hat, Inc. > http://sources.redhat.com/ http://www.redhat.com/
