Re: porting to Wayland

["Jan D." <jan.h.d@swipnet.se>]

Hi.

> 25 nov 2014 kl. 08:49 skrev Daiki Ueno <ueno@gnu.org>:
> 
> Jan Djärv <jan.h.d@swipnet.se> writes:
> 
>> Ok, here goes.
> 
> Thanks!
> 
>> Image support sucks, only PNG from files.  Some redraw issues
>> (esp. Gtk scrollbars) remain.
>> If you choose Gtk3 as toolkit, cairo is forced, otherwise
>> give--with-cairo to configure.
> 
> I've tried the patch.  For PNG support, I had to apply the attached
> patch and run configure with:
> 
>  ./configure --with-x-toolkit=gtk3 --with-cairo --without-imagemagick

Hmm, it seems I made a typo, thanks.

> 
> The output for printing (with x-export-frames) looks great.  
> 
>> Performance is not that great, straight X is faster.
> 
> It's already fast enough for me, but it doesn't do rendering in ::draw
> signal, right?  If it did, would the speed considerablly slow down?

Do you mean the Gtk+ draw signal?  Emacs bypasses that even without cairo.

	Jan D.

> 
> Regards,
> --
> Daiki Ueno
> diff --git a/configure.ac b/configure.ac
> index ac0b86e..a84637d 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -3042,7 +3042,6 @@ if test "${HAVE_X11}" = "yes"; then
>     fi
>     with_xpm=no
>     with_jpeg=no
> -    with_png=no
>     with_gif=no
>     with_tiff=no
> 
> diff --git a/src/image.c b/src/image.c
> index 77e5523..ad31719 100644
> --- a/src/image.c
> +++ b/src/image.c
> @@ -5459,7 +5459,7 @@ pbm_load (struct frame *f, struct image *img)
> 				 PNG
>  ***********************************************************************/
> 
> -#if defined (HAVE_XPM) || defined (HAVE_NS) || defined (USE_CAIRO)
> +#if defined (HAVE_PNG) || defined (HAVE_NS) || defined (USE_CAIRO)
> 
> /* Function prototypes.  */
>