Re: [PATCH 0/1] MR6662: win32u/zibdrv: Round get_arc_max_points() value to a multiple of 4.

[Piotr Caban (＠piotr)]

Piotr Caban (@piotr) commented about dlls/win32u/dibdrv/graphics.c:
> {rect->right, rect->bottom},
>          {rect->right, rect->top}
>      };
> -    unsigned int width, height;
> +    unsigned int width, height, points;
>
> lp_to_dp( dc, pts, 4 );
>      width = max( abs( pts[2].x - pts[0].x ), abs( pts[3].x - pts[1].x ));
>      height = max( abs( pts[2].y - pts[0].y ), abs( pts[3].y - pts[1].y ));
> -    return (width + height) * 3;
> +    points = (width * height) * 3;
> +    return (points % 4) == 0 ? points : points + (4 - ( points % 4 ));

`(points + 3) & ~3` is probably easier to read.

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https://gitlab.winehq.org/wine/wine/-/merge_requests/6662#note_84866