Bug 1171

Summary:

cfb polyline render error

Product:

xorg

Reporter:

Kristian Høgsberg <krh>

Component:

Server/General

Assignee:

Xorg Project Team <xorg-team>

Status:

RESOLVED WONTFIX

QA Contact:

Severity:

normal

Priority:

lowest

CC:

bob.terek, roland.mainz

Version:

git

Hardware:

x86 (IA32)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
artifact	none
program to reproduce	none

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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