On Sat, Mar 21, 2009 at 9:02 PM, Dave Airlie <airl...@linux.ie> wrote: > I'm just wondering if anyone has already tackled this in any driver, and > how this could work best. Does Gallium provide surface accessors for > textures like spans? > > I'm sort of thinking I keep two buffers objects, one sw only and one for > hw to use and use the GPU to blit between them when updates are needed.
That's roughly what I did for the <NV50 Gallium drivers. In general that's what Gallium has for any kind of texture update, you can map/unmap the actual texture or alloc a new temp texture and sync the changes later. We use the latter and instead of a regular blit to sync the changes we do a conversion blit. ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
