Re: GDI+ take 3

[Alan Third <alan@idiocy.org>]

On Sat, Apr 18, 2020 at 04:38:32PM +0300, Eli Zaretskii wrote:
> > From: Juan José García-Ripoll
> >  <juanjose.garciaripoll@gmail.com>
> > Date: Sat, 18 Apr 2020 14:38:58 +0200
> > 
> > Juanma Barranquero <lekktu@gmail.com> writes:
> > > Tiffs no longer crash for me and are correctly animated
> > > GIFs still fail to animate correctly the first time. Juan José, are you
> > > planning to look into it?
> > 
> > With my last mini-patch, I tried exactly the same lisp code with this image
> > https://upload.wikimedia.org/wikipedia/commons/2/2c/Rotating_earth_%28large%29.gif
> > and it animates just fine, exactly as emacs 26.3 with libgif.
> 
> I think I've just seen what Juanma describes -- but with libgif.  I
> saw it only once, and couldn't reproduce afterwards.  But I think this
> means that the problem is not with the w32image.c code, it's somewhere
> else.

FWIW, with a big enough gif[1] I can see the same behaviour using
giflib on an NS build. The native macOS image backend seems to be able
to handle the same gif, but it’s still displayed at a far slower frame
rate than my web browser can handle.

[1] https://drive.google.com/file/d/0B35XTfGL8WmuN2xXcUk4Z3MtMDQ/view?usp=sharing
-- 
Alan Third