Re: SDL audio issue with hivelytracker (porting attempt)

Robert Clausecker <fuz@fuz.su> wrote:
> Hi Emanuel,
> 
> This is a common issue I had with multiple ports (the latest being
> emulators/fceux).  The fragment size must be patched to be a power of
> 2 and the buffer for the fragments must be resized to be at least as
> large as the fragment size (iirc).  This might be the reason why you
> get a signal.
> 
> The fragment size is set in the SDL_AudioSpec structure member samples
> passed to SDL_OpenAudio(). 
> 
> Try to find this call and patch it.

I already did that (see also original post):
https://github.com/ehaupt/ports-wip/blob/master/ports/audio/hivelytracker/files/patch-replay.c

This solved the initial issue but now I'm having problems with the
playback.

> Yours,
> Robert Clausecker
> 
> Am Tue, Mar 15, 2022 at 12:49:08PM +0100 schrieb Emanuel Haupt:
> > I've been trying to port the hivelytracker to FreeBSD. After a lot
> > of patching I was finally able to start it with:
> > 
> > SDL_AUDIODRIVER=disk
> > 
> > with dsp (default) I would always get:
> > 
> > Fragment size must be a power of two
> > 
> > when
> > 
> > SDL_OpenAudio(...)
> > 
> > was called.
> > 
> > I did some further digging and found some useful references in:
> > 
> > https://cgit.freebsd.org/ports/tree/audio/faudio/files/patch-src_FAudio__platform__sdl2.c
> > 
> > With this patch I was able to get the player to launch without the
> > above error:
> > 
> > https://github.com/ehaupt/ports-wip/blob/master/ports/audio/hivelytracker/files/patch-replay.c
> > 
> > The player now starts:
> > 
> > I can click on 'Load Mod', load a sample mod but as soon as I get
> > 'Play Song' I get:
> > 
> > Abort trap (core dumped)
> > 
> > I've been trying to get some sense by running it with truss but
> > haven't been very successful so far.
> > 
> > The work in progress port can be found here:
> > https://github.com/ehaupt/ports-wip/tree/master/ports/audio/hivelytracker
> > 
> > The port still needs some TLC (hardcoded paths, etc...). I'll fix
> > that before adding the port.
> > 
> > Could someone with SDL audio experience please have a look? I'd
> > appreciate the help.
> > 
> > Emanuel
> > 
> > 
> > [1] https://github.com/pete-gordon/hivelytracker
> > 
> 
> -- 
> ()  ascii ribbon campaign - for an 8-bit clean world 
> /\  - against html email  - against proprietary attachments
>