On Fri, 11 May 2012 11:03:50 -0700, Paul Berry <stereotype...@gmail.com> wrote: > When executing a blorp operation on Gen7 that does not need a WM > program (i.e. a HiZ operation), we use 32-pixel dispatch mode because > it's faster. However, when executing a blorp operation that does need > a WM program, we need to use 16-pixel dispatch, because blorp WM > programs are compiled assuming 16-pixel dispatch.
I didn't think dispatch mode means anything unless you're actually dispatching a thread (though I could see how having no dispatch mode set might anger things). Basically, I'm thinking just always set 16, unless there is some efficiency reason I don't know of.
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