[Bug 95317] "the timeless" demo in wine: Red dot rendered that shouldn't be there

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=95317

--- Comment #2 from Christoph Haag <haagch at frickel.club> ---
Some additional info: The demo is supposed to render some waves after the first
scene, but with mesa there's just a white screen with a tiny red dot.

There is one shader that does not compile in the trace, but I do not think it
is the cause for the dot or the missing waves.

I remembered seeing
https://lists.freedesktop.org/archives/mesa-dev/2015-August/092314.html and
used it to replace
jl(l.xxy*1439)
with
jl(l.x*1439)

This causes the dot to alter colors during some of the scenes (with the shader
failing, it stays red), but it does not fix the white screen instead of waves
issue. Here is a video of the demo with the "fixed" shader:
https://www.youtube.com/watch?v=5z5FmwJwKzA

Perhaps the missing waves and the dot are related, perhaps they are not.

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