[Mesa-dev] [Bug 99849] Dashed lines (drawn via GLAMOR) are not rendered correctly

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Feb 20 19:05:23 UTC 2017


--- Comment #4 from Roland Scheidegger <sroland at vmware.com> ---
Looks like this isn't using line stippling or anything like that, but just
drawing a line with a texture attached, with a shader which discards pixel
based on the texture value (I think using a A8 texture, I hope that works,
since the fs is using the .w value - I have no idea there how pixmaps get
converted into textures).
discard obviously is something that is known to work usually, as is ordinary
line drawing (it's using GL_LINE_STRIP).
I'm not familiar enough with glamor to easily debug this though...

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