[Mesa-dev] gallium and ARB_texture_query_levels

[Dave Airlie]

I've taken a quick look at ARB_texture_query_levels,

and the HW generally seems to implement this by returning it in the W
channel of RESINFO, which would map to the TXQ instruction,

So my initial implementation added a LEVQ TGSI instruction but I do
think this isn't representative of the hw and I should add it to TXQ
with maybe a CAP to say it supports levels.

Dave.