[Bug 68365] [SNB Bisected]Piglit spec_ARB_framebuffer_object_fbo-blit-stretch fail

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Jun 26 22:56:21 UTC 2017


Ian Romanick <idr at freedesktop.org> changed:

           What    |Removed                     |Added
             Status|REOPENED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #14 from Ian Romanick <idr at freedesktop.org> ---
Fixed by:

commit 1b101ca809debb9b730d99b92e8f0153f08aeb57
Author: Ian Romanick <ian.d.romanick at intel.com>
Date:   Mon Jun 5 17:34:38 2017 -0700

    blorp: Use normalized coordinates on Gen6

    Apparently, the sampler has some sort of precision issues for
    non-normalized texture coordinates with linear filtering.  This caused
    some small precision issues in scaled blits.  Work around this by using
    normalized coordinates.  There is some extra work necessary because Gen6
    uses TEX (instead of TXF) for some multisample resolve blits.

    Fixes piglit.spec.arb_framebuffer_object.fbo-blit-stretch on SNB.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68365
    Signed-off-by: Ian Romanick <ian.d.romanick at intel.com>
    Reviewed-by: Eduardo Lima Mitev <elima at igalia.com>

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