Rob Clark <[email protected]> writes: > On Tue, Dec 30, 2014 at 5:54 PM, Eric Anholt <[email protected]> wrote: >> I've been looking into X performance on VC4 recently. The first >> obvious thing happening was that we're hitting some fallbacks in the >> driver for things like GL_QUADS, so I thought "what if I use the GLES2 >> paths instead?" Turns out the GLES2 paths are thoroughly broken now. >> I wrote two quick patches that clean up a bunch of errors, but it's >> not working yet. > > What about simply not using GL_QUADS for the normal GL paths? Is > using quads, vs tri's and a few extra vertices really going to be a > win on some other hw? If not, avoiding quads would be a big help for > freedreno too..
We could use tris with glDrawElements. But with an IB, I'd need to be careful to use GL_UNSIGNED_SHORT indices and not GL_UNSIGNED_INT, and I forget what the limits are on number of prims per request so it might be tricky.
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