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2.4 KiB
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60 wiersze
2.4 KiB
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<!-- received="Sat Mar 13 07:46:12 1999 PST" -->
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<!-- sent="Sat, 13 Mar 1999 16:40:08 +0100" -->
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<!-- name="Svend Daugaard Pedersen" -->
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<!-- email="sdp@vip.cybercity.dk" -->
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<!-- subject="SnapScan backend" -->
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<title>sane-devel: SnapScan backend</title>
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<h1>SnapScan backend</h1>
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<b>Svend Daugaard Pedersen</b> (<a href="mailto:sdp@vip.cybercity.dk"><i>sdp@vip.cybercity.dk</i></a>)<br>
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<i>Sat, 13 Mar 1999 16:40:08 +0100</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#129">[ date ]</a><a href="index.html#129">[ thread ]</a><a href="subject.html#129">[ subject ]</a><a href="author.html#129">[ author ]</a>
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<li> <b>Next message:</b> <a href="0130.html">Kaz Sasayama: "Re: Epson backend"</a>
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<li> <b>Previous message:</b> <a href="0128.html">Petter Reinholdtsen: "AGFA SnapScan 1236 (patch 2)"</a>
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</ul>
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I have during my port of the SnapScan backend (v0.6) to the<br>
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Amiga found two errors.<br>
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<p>
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The first error is that there seems to be a difference in the<br>
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number of lines returned by sane_get_parameters and the number<br>
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of lines actually send during scanning. In a color scanning,<br>
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for example the number returned by sane_get_parameters was<br>
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682, but the actual number of lines was 683 (I have the<br>
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debugging output).<br>
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<p>
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For B/W scanning (LineArt) it is worse. The number returned<br>
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by sane_get_parameters was 590 (this is approximately the<br>
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correct line number for that scanning), but the actual number<br>
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of lines was 197 (note that 3 times 197 is 591 which is again<br>
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one more than returned by sane_get_parameters).<br>
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<p>
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The second error is also in sane_get_parameters. The format<br>
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field is not set if you are scanning LineArt.<br>
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<p>
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regards<br>
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<p>
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Svend Daugaard Pedersen<br>
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<p>
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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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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0130.html">Kaz Sasayama: "Re: Epson backend"</a>
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<li> <b>Previous message:</b> <a href="0128.html">Petter Reinholdtsen: "AGFA SnapScan 1236 (patch 2)"</a>
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<!-- nextthread="start" -->
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</ul>
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