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<!-- received="Wed Feb 10 01:14:39 1999 PST" -->
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<!-- sent="Wed, 10 Feb 1999 10:08:09 +0100 (MET)" -->
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<!-- name="becka@rz.uni-duesseldorf.de" -->
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<!-- email="becka@rz.uni-duesseldorf.de" -->
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<!-- subject="Re: libsane-pnm bugs?" -->
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<!-- id="199902100908.KAA10308@zeus.rz.uni-duesseldorf.de" -->
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<!-- inreplyto="Pine.LNX.3.96.990210010328.24989Q-100000@mail.perspex.com" -->
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<title>sane-devel: Re: libsane-pnm bugs?</title>
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<h1>Re: libsane-pnm bugs?</h1>
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<a href="mailto:becka@rz.uni-duesseldorf.de"><i>becka@rz.uni-duesseldorf.de</i></a><br>
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<i>Wed, 10 Feb 1999 10:08:09 +0100 (MET)</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#52">[ date ]</a><a href="index.html#52">[ thread ]</a><a href="subject.html#52">[ subject ]</a><a href="author.html#52">[ author ]</a>
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<li> <b>Next message:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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<li> <b>Previous message:</b> <a href="0051.html">Ashley J Dreier: "Agfa Arcus Plus"</a>
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<li> <b>Next in thread:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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<li> <b>Reply:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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Hi !<br>
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<p>
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<i>> Have other folks' experiences with libsane-pnm been generally positive or</i><br>
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<i>> negative? </i><br>
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<p>
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Negative. It is buggy as hell. I am fixing this, but I have almost no time<br>
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to do it. Someone added really hard-to-implement options (like the<br>
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geometry stuff) there, and then didn't do it right.<br>
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Of course I get the bad credits for that, as I'm listed as the author.<br>
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<p>
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<i>> I keep discovering inconsistencies in it, and it generally seems</i><br>
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<i>> to not work as advertised. In particular:</i><br>
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<p>
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Yes. I'm fixing that.<br>
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<p>
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<i>> * it seems to segfault in sane_read sometimes (Linux 2.0.36). I've checked</i><br>
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<i>> to make sure that my memory blocks are all getting allocated. I realize</i><br>
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<i>> that I might be having some problems since I'm writing inside of an XSUB,</i><br>
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<i>> and there may be perl wackiness going on. However, libsane-umax doesn't</i><br>
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<i>> segfault :-)</i><br>
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<p>
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No. There are many big bugs in the memory handling. If you are not requesting<br>
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the "right" assumed length of data, it's very likely to segfault ...<br>
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<p>
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<i>> * when three-pass is set to true, I get GREEN frames over and over, and</i><br>
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<i>> never get anything else. I'm calling sane_start after I get the EOF flag</i><br>
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<i>> for each frame, but still get the danged GREEN frames.</i><br>
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<p>
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ARGL. O.K. - I'll try to get at it at the weekend. <br>
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<p>
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<i>> For what it's worth, xv renders my sample PNM file properly, so I assume</i><br>
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<i>> that it's clean.</i><br>
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<p>
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Yeah. The pnm source is buggy as hell.<br>
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<p>
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CU, Andy<br>
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<p>
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<pre>
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--
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Andreas Beck | Email : <<a href="mailto:Andreas.Beck@ggi-project.org">Andreas.Beck@ggi-project.org</a>>
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
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</pre>
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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<li> <b>Previous message:</b> <a href="0051.html">Ashley J Dreier: "Agfa Arcus Plus"</a>
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<li> <b>Next in thread:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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<li> <b>Reply:</b> <a href="0053.html">Tripp Lilley: "Re: libsane-pnm bugs?"</a>
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