Re: CAIRO:SURFACE-HEIGHT gives wrong result in CLIP-IMAGE

Chisheng Huang <[email protected]> writes:

> The PNG image used in the CLIP-IMAGE snippet is 256 by 192.
> However, the CAIRO:SURFACE-HEIGHT call in the CLIP-IMAGE snippet 
> in clg/examples/testcairo.lisp returns 1024.  If I define another
> binding to "cairo_image_surface_get_height" such as
> 
> (gffi:defbinding (get-h "cairo_image_surface_get_height") () gffi:int
>   (cr cairo:image-surface))
>  
> I can get the correct height:
> 
> (let ((image (make-instance 'cairo:image-surface 
>                             :filename #p"clg:examples;romedalen.png")))
>   (get-h image))
> --> 192
> 
> Could someone look into this?

Hi

The surface-height reader erroneous got redefined to return the image
stride. I've checked in a fix for it.

-- 
Espen

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