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57 wiersze
2.9 KiB
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57 wiersze
2.9 KiB
HTML
<!-- received="Thu Jul 15 02:32:41 1999 PDT" -->
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<!-- sent="Thu, 15 Jul 1999 11:18:22 +0200" -->
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<!-- name="abel deuring" -->
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<!-- email="a.deuring@satzbau-gmbh.de" -->
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<!-- subject="Re: SnapScan 0.7 sources available; working patch upcoming" -->
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<!-- inreplyto="SnapScan 0.7 sources available; working patch upcoming" -->
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<title>sane-devel: Re: SnapScan 0.7 sources available; working patch upcoming</title>
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<h1>Re: SnapScan 0.7 sources available; working patch upcoming</h1>
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<b>abel deuring</b> (<a href="mailto:a.deuring@satzbau-gmbh.de"><i>a.deuring@satzbau-gmbh.de</i></a>)<br>
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<i>Thu, 15 Jul 1999 11:18:22 +0200</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#78">[ date ]</a><a href="index.html#78">[ thread ]</a><a href="subject.html#78">[ subject ]</a><a href="author.html#78">[ author ]</a>
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<li> <b>Next message:</b> <a href="0079.html">Oliver Rauch: "Re: Xsane questions and wish list"</a>
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<li> <b>Previous message:</b> <a href="0077.html">Steve Gunnell: "Xsane questions and wish list"</a>
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<li> <b>Maybe in reply to:</b> <a href="0074.html">Kevin Charter: "SnapScan 0.7 sources available; working patch upcoming"</a>
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</ul>
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Doug,<br>
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<p>
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<i>> Abel Deuring <<a href="mailto:a.deuring@satzbau-gmbh.de">a.deuring@satzbau-gmbh.de</a>> is also getting</i><br>
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<i>> some impressive speedups with his SnapScan using larger</i><br>
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<i>> buffers and "pseudo" command queuing.</i><br>
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<p>
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I'm working with a Sharp JX250, not an Agfa Snapscan :) But the<br>
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remaining is right: the usage of (pseudo) command queueing, large<br>
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buffers, a separate reader process and shared memory for the data<br>
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transfer between the reader process and its parent avoids many, if not<br>
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all, carriage stops with higher resolutions, at least with the Linux box<br>
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to which my JX250 is connected (P166, 64 MB, Adaptec 2940). On the other<br>
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hand, it seems that the JX250 has not the largest internal buffer, or a<br>
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poor buffer management. The scan time decrease from more than 20 seconds<br>
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to less than 10 seconds (A4, grayscale, 400 dpi) may be a somewhat<br>
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special situation, compared with other scanners.<br>
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<p>
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Abel<br>
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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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</pre>
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<!-- body="end" -->
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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="0079.html">Oliver Rauch: "Re: Xsane questions and wish list"</a>
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<li> <b>Previous message:</b> <a href="0077.html">Steve Gunnell: "Xsane questions and wish list"</a>
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<li> <b>Maybe in reply to:</b> <a href="0074.html">Kevin Charter: "SnapScan 0.7 sources available; working patch upcoming"</a>
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<!-- nextthread="start" -->
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<!-- reply="end" -->
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</ul>
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