[Bug 91926] [SKL bisected] texsubimage pbo intermittent failures

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu Oct 15 06:06:09 PDT 2015


https://bugs.freedesktop.org/show_bug.cgi?id=91926

--- Comment #21 from Topi Pohjolainen <topi.pohjolainen at intel.com> ---
This is another random observation. I noticed that _mesa_meta_pbo_TexSubImage()
itself stores the current gl-state and resets the state for new meta operation
(calls _mesa_meta_begin()). This is followed by a call
_mesa_meta_BlitFramebuffer() which in turn does the same - stores the current
gl-state and resets it again (by calling _mesa_meta_begin() also). This should
be fine as the meta-state mechanism is designed for nested operations.
This is just used quite rarely and therefore possible (though unlikely) source
for a lurking bug.

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