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https://bugs.freedesktop.org/show_bug.cgi?id=5148
Summary: [r300] Stale texture data used on first rendering
Product: Mesa
Version: CVS
Platform: Other
OS/Version: FreeBSD
Status: NEW
Severity: normal
Priority: P2
Component: Drivers/DRI/r300
AssignedTo: [email protected]
ReportedBy: [EMAIL PROTECTED]
A small sample app for this issue is from libpcg, tests/reactdiff_2d in TURING
mode (it's most visible there). It's drawing a single texture that's evolving
over time. After the texture has been updated, the first drawing of it will
draw four sub-triangles of (presumably) the first triangle drawn, using data
from the previous texture that was used. Resizing the window to make it redraw
makes the misrendering go away. It's somewhat visible while using the app, and
very prominent when quitting the app while the texture is light-colored, then
restarting. The stale data will actually persist across X Server restarts.
Hacking up a fix for #5147 doesn't fix this.
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