Re: [PATCH 0/2] MR6581: win32u: Implement drawing transformed arcs.

[Huw Davies (＠huw)]

Huw Davies (@huw) commented about dlls/win32u/dibdrv/graphics.c:
> +static unsigned int get_arc_max_points( DC *dc, const RECT *rect )
> +{
> - POINT pts[4] =
> - {
> -
>    {rect->left, rect->top},
> -
>    {rect->left, rect->bottom},
> -
>    {rect->right, rect->bottom},
> -
>    {rect->right, rect->top}
> - };
> - unsigned int width, height;
> -
> - 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;

Why does this scale as the product of width and height?