[cairo] Clip region problems

[Bill Spitzak]

Owen Taylor wrote:
> On Wed, 2005-05-18 at 15:56 -0700, Bill Spitzak wrote:

>>You should allow any number 
>>of readers at the same time on any cairo_surface_t as long as no writer 
>>is active.
> 
> This would require quite a bit of complexity, since we temporarily
> modify internal attributes like filter and transform when using a 
> surface as a source.

You are right. Never mind. No more than one user is allowed at any time 
instead.

>>Wasn't there also a plan to make cairo_t and cairo_surface_t the same 
>>object (ie cairo_create(surface) would not exist, instead the surface 
>>itself can be used). 
> 
> This idea was rejected as too big a change at this point (and also quite
> likely not a good idea.)

Is there an interface to extract the cairo_surface_t from a cairo_t? 
That would avoid the extra pointer, which I don't like because it 
implies that they are independent of each other.