[haiku-development] Re: Cario and Skia
- From: Adrien Destugues <pulkomandy@xxxxxxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Thu, 23 Feb 2012 19:33:45 +0100
Le 23/02/2012 19:20, Simon Taylor a écrit :
I'm planning on keeping the abstraction very low level - just wrap
some memory as a surface, and not support concurrent BeAPI drawing
access. There will be some investigation required as to the quickest
way to get those surfaces into the app_server, but hopefully if there
is any work required there it could be shared between Cairo and Skia
and any other client-side rendering libraries.
You can use either BDirectWindow, set a background BBitmap on a BView,
or use an overlay.
Remember that working that way instead of using BeAPI and the app_server
backend leads to :
* code duplication (all the graphics algorithms are in the app, while
we have working ones in the app_server)
* integration problems (you can draw on a BBitmap and a BDirectWindow
using the BeAPI, but it's not as good as the usual way)
It feels just like the way Linux is working : while X11 has support for
drawing lines, curves, and so on, everyone just open a window and do
their own stuff in it. This makes things like a remote X11 session or a
remote app_server slower than needed (they need to carry the whole
picture over the network, instead of just the drawing commands). So it
will never be as good as a native implementation.
--
Adrien.
Other related posts:
