glamor regressions with radeonsi (Re: xserver: Branch 'master' - 15 commits)

Keith Packard keithp at
Tue Apr 8 01:18:32 PDT 2014

Michel Dänzer <michel at> writes:

> I think the glamor code is doing conceptually the wrong thing anyway:
> glTexSubImage is intended for changing parts of an existing texture.

I'd hate to try and understand the 'intent' of any standard as complex
as this, but glTexSubImage seemed to me the 'obvious' way to construct a
texture atlas from a pile of source images.

I remain mystified as to how this could go so slow on any hardware

keith.packard at
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