image output fail if source is not 24bit

[Alex Samorukov]

image output is broken in case if source is not 24 bit depth. Resulted files are unreadable, both in html or rtf (with image patch) modes.

[Kuzemko Aleksandr (kuzemkoa-rambler)]

cuneiform -o eng.rtf -f rtf English.tif
I recive normal rtf file, but image of scanner is broken.

[Alex Samorukov (samm-os2)]

Please, try to test this version of the patch. I found a bug inside openoffice, i`m discovering now how to make bugaround for this.

With this patch it should be visible fine in m$ word and other standard compatible products

[Kuzemko Aleksandr (kuzemkoa-rambler)]

I use last version of repository source code (rev 255)
cuneiform -o eng.rtf -f rtf English.tif
I receive normal rtf file, but without image.
System Gentoo amd64, OO 3.0 beta2

[Alex Samorukov (samm-os2)]

this is openoffice bug

[Kuzemko Aleksandr (kuzemkoa-rambler)]

I test it in Microsoft Office 2007. It open file correct

[Jussi Pakkanen (jpakkane)]

Consider this one fixed then.

[Alex Samorukov (samm-os2)]

Fix for the wrong bitmap header in non 24-bit modes.

The reason of bug was very simple - authors forgot that bmp data offset should calculated not only like BMPFILEHEADER+BMPINFOHEADER, but also + number of used color in palette * sizeof RGBQUAD. In case of 24 bit bitmap number of used color is always 0 (because we don`t need palette in this case), so it was ok, but not in 1 bit mode.

This patch fix this part of the problem. Another problem is inside ApplayMaskToDIB which return empty file on 64 bit platforms. As workaround it`s possible just to disable it, i see no regression on this.