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<!-- subject="Re: color scanning and MFS-6000CX" -->
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<title>sane-devel: Re: color scanning and MFS-6000CX</title>
<h1>Re: color scanning and MFS-6000CX</h1>
<b>Mathias Weigt</b> (<a href="mailto:p5iba@medchem2.pharmazie.uni-halle.de"><i>p5iba@medchem2.pharmazie.uni-halle.de</i></a>)<br>
<i>Tue, 8 Apr 1997 18:58:16 +0059 (MDT)</i>
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Servus !<br>
<p>
I have just tested the new sane-0.5.2 release and here are my experiences and<br>
impressions:<br>
<p>
The preview still needs a 16 bit color display, it crashes with 256 colors.<br>
Since the new Beta 4 of StarOffice seems to need eight bit for displaying<br>
the icons correct I have to switch the colordepth every time.<br>
The qcam backand doesn`t compile: <br>
<p>
gcc -c -I/usr/X11R6/include -g -O2 -D_GNU_SOURCE -Wall -DHAVE_CONFIG_H -I. -I../include -DPATH_SANE_CONFIG_DIR=/usr/local/etc/sane.d -DPATH_SANE_DATA_DIR=/usr/local/share -DV_MAJOR=0 -DV_MINOR=5 -DBACKEND_NAME=qcam -fPIC -DPIC qcam.c<br>
In file included from /usr/include/linux/sched.h:81,<br>
from /usr/include/linux/vmalloc.h:4,<br>
from /usr/include/asm/io.h:4,<br>
from qcam.c:171:<br>
/usr/include/asm/processor.h:156: warning: `struct task_struct' declared inside parameter list<br>
/usr/include/asm/processor.h:156: warning: its scope is only this definition or declaration,<br>
/usr/include/asm/processor.h:156: warning: which is probably not what you want.<br>
In file included from /usr/include/linux/vmalloc.h:7,<br>
from /usr/include/asm/io.h:4,<br>
from qcam.c:171:<br>
/usr/include/asm/pgtable.h:52: warning: `struct mm_struct' declared inside parameter list<br>
/usr/include/asm/pgtable.h: In function `flush_tlb_mm':<br>
/usr/include/asm/pgtable.h:54: `current' undeclared (first use this function)<br>
/usr/include/asm/pgtable.h:54: (Each undeclared identifier is reported only once<br>
/usr/include/asm/pgtable.h:54: for each function it appears in.)<br>
/usr/include/asm/pgtable.h: At top level:<br>
/usr/include/asm/pgtable.h:59: warning: `struct vm_area_struct' declared inside parameter list<br>
... a.s.o.<br>
Without qcam it compiles.<br>
<p>
Color scanning is a little bit funny now. The first pass is ok but then the <br>
behavior becomes very strange. After the scanner was started about twenty times<br>
for "receiving red data for 'out.ppm'..." (text of the progress box) I canceled<br>
this. Cancellation by the provided button didn`t work, so I had to exit xscan.<br>
Xscan seems to run into an endless loop - You can go drinking coffee and when <br>
returning the scanner is still working. I try to explain it in detail:<br>
After the first pass the scanner is changing the filter (or whatever) and then<br>
the second pass is started. But during the second and third pass it never scans<br>
the whole specified area. The carriage jerks a little bit forward then it <br>
returns and changes the filter. After this another will be started... till<br>
infinity.<br>
<p>
Enough from my neverending-scanning story.<br>
<p>
Mathias<br>
<p>
<p>
Mathias Weigt <br>
<a href="mailto:p5iba@medchem2.pharmazie.uni-halle.de">p5iba@medchem2.pharmazie.uni-halle.de</a><br>
<p>
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<li> <b>Next message:</b> <a href="0048.html">David Mosberger-Tang: "Re: color scanning and MFS-6000CX"</a>
<li> <b>Previous message:</b> <a href="0046.html">Michael K. Johnson: "Re: color scanning and MFS-6000CX"</a>
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