[Mesa-dev] [Bug 89586] Drivers/DRI/swrast

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89586

--- Comment #28 from Dan Sebald <daniel.sebald at ieee.org> ---
Created attachment 114593
  --> https://bugs.freedesktop.org/attachment.cgi?id=114593&action=edit
swrast legacy with patch Piglit test images

SWRAST_DRI.SO LEGACY PATCH

With the Mesa changeset I attached to this bug report, the legacy driver now
produces good results as far as the monotonicity tests.  The vertical lines due
to the GL_MAX_TEXTURE_SIZE boundary are gone in the X direction, and the
positive Y-gradient image no longer has a missing last pixel (line).  So that
is making progress.  However, it's clear that the changeset has solved the
issue with glDrawPixels not scaling precisely, and I still don't see why the
positive X/Y over/underrun tests are failing--the associated images look
correct.

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