Re: [XaraXtreme-dev] Cairo Port

[Alex Bligh <alex@xxxxxxxxxxx>]

Jonas,

> True unless I replace GDrawAsm, which I was originally thinking about.

The problem is if Cairo and GDraw don't have exactly similar capabilities.

> But you are right, it might be nice to switch at run time (for testing
> etc.). I might as well continue the way Carl started for now, but then
> there's this context passing which I don't fully understand yet.
>
> What is actually passed in the GCONTEXT struct? Esp., what's in the Data
> field?

It's an opaque data structure.

> Should Valid actually be set toC90FDAA2 as it says in gconsts.h:238?

I suspect that's an internal Magic number GDraw uses.

> > You will also, I think, need to look carefully at whether you need to
> > derive an alternate render region class from GRenderRegion; ideally you
> > won't (as you'll have to change all sorts of instances where these are
> > created); perhaps you can use the render region capabilities system
> > (RRCAPS).
>
> Hmm, haven't thought about those details yet. This is what Carl was
> refering to where GDRAW etc. paint to, right?
>
> But using stubs or deriving a GDrawContext should be irelevant for this
> matter, right?

Carl's initial aim, I think, was to make it compile and link without the
"polution" of the binary about.


Alex