[Mesa-dev] gallium endianness and hw drivers

[Dave Airlie]

So the llvmpipe endian work broke the nouveau nv40 support for the
nv43 in the ppc G5 a few people have,

Now I'm not really sure how this is supposed to be fixed,

the gallium driver exports the formats it supports, which doesn't
include the translated formats for PIPE_FORMAT_BGRA8888 and
PIPE_FORMAT_8BGRX8888 which end up like PIPE_FORMAT_A8R8G8B8_UNORM
this. This means no 8-bit visuals and ensuing fail.

Now I'm not sure the hw has any swappers or anything to facilitate
these formats for rendering to, so it seems to me the pipe driver is
doing the right thing, so my thinking is the state tracker should
probably be dealing with this better, but again I'm not really sure
how, maybe this just all worked in the past by luck.

So should dri_fill_in_modes be doing a bit more on big endian? so if
it can't find any formats the way it wants, it tries the other way,
and reports those back so X gets different visuals with the masks all
moved about?

Dave.