Andrew,
I have just completed some EDM tests (see separate
post), and certain requirements have come to light
which means that ideally I would like to read a BMP
and send it to the target byte by byte, (I need to add
extra commands after certain sequences of OFF pixels
in the target processor).
Sorry if this causes extra work, I know how difficult
it can be in the land of the Amber Nectar to motivate
oneself after lunch. LOL.
Roger
--- Andrew <
andrewm1973@...> wrote:
> Me wrote:
>
> I have finished reading the TIFF specifications
> carefully and also looked at some TIFF/G3 files in
> a hex editor. It is very doable from a seriel
> stream as long as the saving application does not
> put the segments of the picture out of order.
>
> Most of the apps I have looked at so far have saved
> the TIFF in a suitable format.
Well - The good news and bad news.
The good news is I wrote a quick and dirty TIFF
file decoding application in C on the PC this
afternoon.
The bad news is - MANY TIFF files have the image
description AFTER the pixel data.
This puts a spanner in my plans to just X-Modem
the file to the Plotter/EDM machine.
Does Roger or anyone else that may have wanted
to use this code have a preference for either of
the below options
1, Write some PC code the re-saves the TIFF with
the image descriptor at the start of the file
Then send this re-saved TIFF via X-Modem.
2, Write some code on the PC that just reads a
BMP or TIFF and sends it straight to the
target system byte by byte.
Option one is probably my preference. I can
still just use X-Modem. The re-saved TIFF is
still a valid TIFF. If your application saves
in that format anyways - there is no extra step.
Option two means I have to write more PC code
than I normally like too - lazy lazy andrew.
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