OK, makes sense. The other place where separate buffers could be
reasonable is, unrelatedly, ARB_texture_stencil8. My plan for that was
to just let it be though and just disallow any depth attachments next
to that s8 attachment. (The implementation got stymied when I realized
that nvidia hw doesn't
To provide some background why separate attachments aren't supported in
gallium:
1) OpenGL always allowed this, however noone seriously expected this to
actually be supported. At least gaming hardware pretty much was limited
to d24s8.
2) D3D10 also only has one attachment point for both, so there m
Manual interleaving and deinterleaving in the driver seems to be the
easiest solution. You just need 2 blits. You can reuse u_blitter for
setting up stuff or you can create your own thing.
Adding separate Z+S to Gallium and st/mesa would be quite a lot work,
and what you want to support is an inte
