Dr Andrew C Aitchison wrote:
Indeed, shadow framebuffer is not what I need. I think the Dual Framebuffer that xaaOverlayDF.c uses will be more of use to me. It seems to create the underlay and overlay buffer that I need.On Mon, 11 Nov 2002, Luugi Marsan wrote:I thought about using the shadow framebuffer also. It seems like the easiest way. I need to get myself more acquainted with shadow framebuffer. For our new chip I need to specify an overlay surface and an underlay surface, the chip will take care of overlaying both surfaces. That is why I'm asking this. I hope that I'm thinking in the right direction.Shadow isn't accelerated. Another approach would be to think of the overlay and underlay as separate heads; clearly you don't want that to show at the top level, but compartmentalizing the memory like our mga driver does for dual-head might be appropriate.
Luugi
