Hi,
The chroma offsets are just one issue here, it seems. At 100dpi a 2540
pixel line would be 25.4inches - somewhat wider than the actual scanner.
The scan is also (apparently) 34.29inches long, and monochrome, since the
number of bytes and pixels per line is equal. In other words this data
looks seriously screwed up. I'll take a look at older version of the driver
and see what I can find. Do you know a revision of driver which worked OK?
Steve
Louis van Dompselaar wrote:
> Here's the debug output for a 100 dpi colour scan on the
> Agfa SnapScan 1236 with the new backend. It looks like
> the Agfa doesn't return the required colour offsets...
>
> [snapscan] inquiry
> [snapscan] inquiry: Chroma offsets Red:0, Green:0 Blue:0
> [snapscan] inquiry: pixels per scan line = 2540
> [snapscan] inquiry: bytes per scan line = 2540
> [snapscan] inquiry: number of scan lines = 3429
> [snapscan] inquiry: effective buffer size = 30480 bytes, 8 lines
> [snapscan] inquiry: expected total scan data: 8709660 bytes
>
> --
> Louis van Dompselaar louis@sitebysite.nl
> Site by Site B.V. Duivendrechtsekade 85, 1096 AJ Amsterdam
> Tel: 020 665 7148 fax: 020 665 7279 http://www.sitebysite.nl/
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