[cairo] virtual surfaces and composition

[Lawrence D'Oliveiro]

On Fri, 11 Dec 2015 17:34:51 +0100, Uli Schlachter wrote:

> Let me mention:
> 
> void append_region_to_path(cairo_t *cr, const cairo_region_t *region)

And what exactly is the point of this? Regions can only have integer
coordinates. Even using cairo_rectangle() calls gives you more
flexiblity than this.

Or better still, why not use the full generality of paths?