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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #8 from Dan Sebald <daniel.sebald at ieee.org> ---
I cloned the piglit repository and will see if I can write a program.  It
shouldn't be difficult once I figure out the source tree organization, but it
might take me a couple days.

I see the transition happening away from swrast to Gallium, but I'm guessing
linux bundles might still be relying on swrast as I know the other folks who
mentioned the lines keep their systems more up-to-date.  There is also at least
one driver in Gallium that will fall back on swrast under certain
circumstances.

I was just in the process of creating a bug report for a related type of
problem in the Gallium driver for glPixelZoom.  However, the Gallium
organization isn't so straightforward and I've not yet figured out exactly
which code gets run via Gallium.  Whatever is compiled is also named
swrast_dri.so in the lib/gallium subdirectory, but it is clearly a different
implementation of pixel zoom.  (Only the first 8192 pixels zoomed appear in the
image while the rest is background-color, in both x and y dimensions.  So I
can't tell if there are dropped pixels in that case just yet.)  I will look
through softpipe and llvmpipe for the source code.

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