https://bugs.freedesktop.org/show_bug.cgi?id=29272
Summary: osmesa 7.8.2 - assertion error drawing thin line with
CHAN_BITS=32
Product: Mesa
Version: unspecified
Platform: Other
OS/Version: All
Status: NEW
Severity: normal
Priority: medium
Component: Mesa core
AssignedTo: mesa-dev@lists.freedesktop.org
ReportedBy: a...@rops.org
The attached program shows a simple thin line painted with an unitialized value
(usually infinity).
(OSMesa 7.8.2 built with configs/linux-osmesa32 plus -DUSE_MGL_NAMESPACE)
A debug build (linux-x86-64-debug with "-DUSE_MGL_NAMESPACE -DCHAN_BITS=32
-DDEFAULT_SOFTWARE_DEPTH_BITS=31") yields:
a.out: swrast/s_span.c:1173: _swrast_write_rgba_span: Assertion
`span->arrayMask & 0x01' failed.
Enabling the depth buffer causes the line to be painted correctly.
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