Re: [Mesa3d-dev] Proposed new DD texture interface

[Gareth H. <ga...@va...>]

Gareth Hughes wrote:
> 
> > > The Driver.TexImage* callbacks are now no longer allowed to fail.
> >
> > Because it'll be up to core Mesa to unpack and store the texture image
> > under all circumstances?
> >
> > I'm a bit worried about expecting core Mesa to do all this.  Consider
> > a card that uses some sort of tiled texture memory layout.  I think it
> > should be up to the driver to handle image conversion for something
> > like this and not burdon core Mesa with strange conversion routines.

I should add the following:

Cards that do tiled textures will generally tile them for you on the
texture upload blit.  This is perhaps the only really efficient way to
do tiled textures, as tiling them manually would be a comparatively
expensive operation.  This is true in all the cases I've seen, at least,
and my experience may be unfairly biased.

-- Gareth