[Ffmpeg-devel] Re: Revised os2.diff

[Michael Niedermayer]

Hi

On Monday 25 April 2005 12:21, Paul Smedley wrote:
> Hi,
>
> Michael Niedermayer wrote:
> > Hi On Saturday 23 April 2005 03:32, Paul Smedley wrote:
> >
> >
> > IIRC there must be no spaces before #
> > so
> > +    #ifdef CONFIG_OS2
> > will cause problems
>
> Hmmm it compiles OK here....

iam not doubting that, just that it will everywhere else


>
> >  >> +      // Make stdout and stderr unbuffered
> >  >> +      setbuf( stdout, NULL );
> >  >> +      setbuf( stderr, NULL );
> >
> > why?
>
> from:
> http://wiki.netlabs.org/index.php/SDL#Morph_your_program_to_a_PM_program_at
>_runtime
>
> <Begin quote>
> Most SDL applications assume that they can write to STDOUT, and the user
> will see it. In OS/2, you have to compile your application to a PM
> application in order to be able to have a PM Window, but the STDOUT will
> go to NULL in this case. The solution is to compile your code to a VIO
> application, and morph the application to a PM one dynamically, at
> runtime, before calling SDL_Init().
>
> Once you have your text output back, you might use it for showing debug
> messages. If you do so, it's a good idea to make the STDOUT and STDERR
> unbuffered, so the debug messages will be shown right at the time when
> the printf() is called, so every message will be visible even in case of
> a crash.
>
> Here is an example code on how to morph your VIO application to a PM one
> dynamically, at runtime, and how to set STDOUT and STDERR unbuffered:
> <End Quote>

STDERR should be unbuffered by default, no clue if it is or not on os2, and 
debug messages must not be sent to STDOUT

[...]
-- 
Michael

"nothing is evil in the beginning. Even Sauron was not so." -- Elrond