[sane-devel] "test" backend broke

[m. allan noah]

or they are used, but the resolution is unused?

allan

On Thu, Feb 19, 2009 at 9:03 AM, Chris Bagwell <chris at cnpbagwell.com> wrote:
> I think this is the interesting part of --help?
>
>  Geometry:
>   -l 0..200mm (in steps of 1) [0]
>       Top-left x position of scan area.
>   -t 0..200mm (in steps of 1) [0]
>       Top-left y position of scan area.
>   -x 0..200mm (in steps of 1) [80]
>       Width of scan-area.
>   -y 0..200mm (in steps of 1) [100]
>
> So the values shown as default do not seem to be used.
>
> Your information has limited the problem enough that I don't mind debugging
> it from here.
>
> Thanks,
> Chris
>
> m. allan noah wrote:
>>
>> with a couple week old cvs, when i run your command i get this:
>>
>>
>>>
>>> scanimage -d test -T
>>>
>>
>> scanimage: scanning image of size 157x196 pixels at 8 bits/pixel
>> scanimage: acquiring gray frame, 8 bits/sample
>> scanimage: reading one scanline, 157 bytes...   PASS
>> scanimage: reading one byte...          PASS
>> scanimage: stepped read, 2 bytes...     PASS
>> scanimage: stepped read, 4 bytes...     PASS
>> scanimage: stepped read, 8 bytes...     PASS
>> scanimage: stepped read, 16 bytes...    PASS
>> scanimage: stepped read, 32 bytes...    PASS
>> scanimage: stepped read, 64 bytes...    PASS
>> scanimage: stepped read, 128 bytes...   PASS
>> scanimage: stepped read, 256 bytes...   PASS
>> scanimage: stepped read, 255 bytes...   PASS
>> scanimage: stepped read, 127 bytes...   PASS
>> scanimage: stepped read, 63 bytes...    PASS
>> scanimage: stepped read, 31 bytes...    PASS
>> scanimage: stepped read, 15 bytes...    PASS
>> scanimage: stepped read, 7 bytes...     PASS
>> scanimage: stepped read, 3 bytes...     PASS
>>
>> but if i add -x 1 -y 1, i get this:
>>
>>
>>>
>>> scanimage -d test -x 1 -y 1 -T
>>>
>>
>> scanimage: rounded value of br-x from 0.999985 to 1
>> scanimage: rounded value of br-y from 0.999985 to 1
>> scanimage: scanning image of size 1x1 pixels at 8 bits/pixel
>> scanimage: acquiring gray frame, 8 bits/sample
>> scanimage: reading one scanline, 1 bytes...     PASS
>> scanimage: reading one byte...          FAIL Error: End of file reached
>>
>>
>> If the image is too small (only has one scanline, etc), then scanimage
>> -T runs out of data. It's just poorly programmed, because it is rarely
>> used. The bigger question is why does your copy of the test backend
>> have such a small scan area? what does 'scanimage -d test --help'
>> show?
>>
>> allan
>>
>> On Wed, Feb 18, 2009 at 10:56 PM, Chris Bagwell <chris at cnpbagwell.com>
>> wrote:
>>
>>>
>>> Hi all,
>>>
>>> I was converting the testsuite directory to automake but I noticed in
>>> CVS version of sane that the following basic command doesn't work.  So
>>> not much for me to test right now.
>>>
>>> frontend/scanimage -d test -T
>>> lt-scanimage: scanning image of size 1x1 pixels at 8 bits/pixel
>>> lt-scanimage: acquiring gray frame, 8 bits/sample
>>> lt-scanimage: reading one scanline, 1 bytes...    PASS
>>> lt-scanimage: reading one byte...        FAIL Error: End of file reached
>>>
>>> Running 1.0.19 from my /usr/bin does work for same command line.  Anyone
>>> know when it broke?
>>>
>>> Chris
>>>
>>>
>>>
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>>>
>>>
>>
>>
>>
>>
>
>



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