Bug 1171 - cfb polyline render error
Summary: cfb polyline render error
Status: RESOLVED WONTFIX
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/General (show other bugs)
Version: git
Hardware: x86 (IA32) Linux (All)
: lowest normal
Assignee: Xorg Project Team
QA Contact:
URL:
Whiteboard:
Keywords:
: 2988 (view as bug list)
Depends on:
Blocks:
 
Reported: 2004-08-24 12:21 UTC by Kristian Høgsberg
Modified: 2006-04-04 06:09 UTC (History)
2 users (show)

See Also:
i915 platform:
i915 features:

Attachments
artifact (4.02 KB, image/png)
2004-08-24 12:28 UTC, Kristian Høgsberg 		no flags Details
program to reproduce (2.59 KB, text/plain)
2004-08-24 12:30 UTC, Kristian Høgsberg 		no flags Details
View All

Description Kristian Høgsberg 2004-08-24 12:21:12 UTC 
There is a rendering bug somewhere in cfb8line.c, where polylines that get
clipped result in erroneous pixels.  Screenshot and simple program to reproduce
attached.

I don't really expect anyone to spend much time on this, I'm just logging it
here so we can decide not to fix it ;-)
Comment 1 Kristian Høgsberg 2004-08-24 12:28:43 UTC 
Created attachment 716 [details]
artifact

Screenshot of rendering error.
Comment 2 Kristian Høgsberg 2004-08-24 12:30:51 UTC 
Created attachment 717 [details]
program to reproduce

Small program to reproduce.  This only happens with cfb, so it's a bit
difficult to find a server with this problem... vncserver should show it.
Comment 3 Roland Mainz 2005-04-12 15:26:27 UTC 
bug 2988 ("cfb8line.c can write beyond limit of pixmap memory, resul...") may be
related to this issue...
Comment 4 Adam Jackson 2005-10-22 15:55:05 UTC 
*** Bug 2988 has been marked as a duplicate of this bug. ***
Comment 5 Adam Jackson 2006-04-04 23:09:52 UTC 
indeed, wontfix.

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