kopia lustrzana https://gitlab.com/sane-project/website
73 wiersze
2.9 KiB
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73 wiersze
2.9 KiB
HTML
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<!-- received="Sun Jul 26 06:44:45 1998 PDT" -->
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<!-- sent="Sun, 26 Jul 1998 13:31:20 +0200" -->
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<!-- name="Oliver Rauch" -->
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<!-- email="oliver.rauch@Wolfsburg.DE" -->
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<!-- subject="Re: problems with sgi/umax" -->
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<!-- inreplyto="problems with sgi/umax" -->
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<title>sane-devel: Re: problems with sgi/umax</title>
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<h1>Re: problems with sgi/umax</h1>
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<b>Oliver Rauch</b> (<a href="mailto:oliver.rauch@Wolfsburg.DE"><i>oliver.rauch@Wolfsburg.DE</i></a>)<br>
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<i>Sun, 26 Jul 1998 13:31:20 +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#157">[ date ]</a><a href="index.html#157">[ thread ]</a><a href="subject.html#157">[ subject ]</a><a href="author.html#157">[ author ]</a>
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<li> <b>Next message:</b> <a href="0158.html">Bernd Schroeder: "Re: Scanmaker 630 and Adaptec 2940UW"</a>
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<li> <b>Previous message:</b> <a href="0156.html">Norman Uhlmann: "segfault with Microtek Scanmaker 330"</a>
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<li> <b>Maybe in reply to:</b> <a href="0120.html">vp00955@hp2.vpn.at: "problems with sgi/umax"</a>
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</ul>
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Didier Carlier wrote:<br>
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<p>
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<i>> On 24-Jul-98 Oliver Rauch wrote:</i><br>
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<i>> > Hi Didier,</i><br>
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<i>> ></i><br>
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<i>> > it looks like the modulo(%) function:</i><br>
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<i>> ></i><br>
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<i>> > s->row_bufsize - (s->row_bufsize % row_len)</i><br>
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<i>> ></i><br>
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<i>> > makes problems with such big arguments (8*1024*1024)</i><br>
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<i>> > and returns 0 in the described case.</i><br>
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<i>> ></i><br>
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<i>> > I replaced it by a (long)-integer division in the umax-backend.</i><br>
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<i>></i><br>
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<i>> Strange, I can't reproduce that here (egcs + pentium). As long as</i><br>
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<i>> s->row_bufsize fits on 32 bits, the result looks ok.</i><br>
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<i>></i><br>
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<i>> Does that change fixes the problem reported by Chinedum Osuji ?</i><br>
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<i>></i><br>
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<p>
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Hi Didier,<br>
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<p>
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it is not tested yet.<br>
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<p>
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My backend prints row_bufsize after the modulo-function, so<br>
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I know that it is 8MB if the image is greater than 4MB,<br>
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so the modulo-function seems to return 0 on SGI in that case.<br>
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<p>
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I sent a patch to david for the umax-backend, I hope he included it<br>
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into sane-0.74, then we will se!<br>
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<p>
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Bye<br>
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Oliver<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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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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<!-- 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="0158.html">Bernd Schroeder: "Re: Scanmaker 630 and Adaptec 2940UW"</a>
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<li> <b>Previous message:</b> <a href="0156.html">Norman Uhlmann: "segfault with Microtek Scanmaker 330"</a>
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<li> <b>Maybe in reply to:</b> <a href="0120.html">vp00955@hp2.vpn.at: "problems with sgi/umax"</a>
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<!-- nextthread="start" -->
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</ul>
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