Date: Thu, 17 Feb 2000 19:52:19 -0800 (PST) From: sigehiro@ee.oit.ac.jp To: freebsd-gnats-submit@FreeBSD.org Subject: ports/16800: xwdtopnm can not work well on my 16bits/pixel display. Message-ID: <200002180352.TAA88987@freefall.freebsd.org>
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>Number: 16800
>Category: ports
>Synopsis: xwdtopnm can not work well on my 16bits/pixel display.
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-ports
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Feb 17 20:00:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: Yuji Shigehiro
>Release: FreeBSD 3.3-RELEASE
>Organization:
Osaka Institute of Technology, Japan
>Environment:
FreeBSD kaken98.ee.oit.ac.jp 3.3-RELEASE FreeBSD 3.3-RELEASE #3: Thu Jan 6 16:47:54 JST 2000 sigehiro@kaken98.ee.oit.ac.jp:/usr/src/sys/compile/PRO-400L i386
>Description:
The following command
% xwd | xwdtopnm > foo.ppm
generates an illegal PPM file on my machine
with 16 bits/pixel display (XF86_Mach64.xtt).
>How-To-Repeat:
On the X Window System (XF86_Mach64.xtt) with 16 bits/pixel display,
execute following command
% xwd | xwdtopnm > foo.ppm
and display the image `foo.ppm'.
>Fix:
In `/usr/ports/graphics/netpbm/work/netpbm/pnm/xwdtopnm.c',
16 bits/pixel data format is (maybe) considered
to be `0BBBBBGGGGGRRRRR' (see lines 94--114 of xwdtopnm.c).
However, the format is (maybe) `RRRRRGGGGGGBBBBB' on my computer,
and there may exist other formats on other computers.
Please modify the source code correctly ?
(on the basis of variables `{red,green,blue}_mask'
in the source code.)
>Release-Note:
>Audit-Trail:
>Unformatted:
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