Re: [AD] About kryten2's bug

["Eric Botcazou" <ebotcazou@xxxxxxxxxx>]

> I've attached another patch (grabber.diff) which does that. It doesn't add
> the flag to the dat properties because I think this would break backward
> compatibility. Am I wrong ?

Revised version that adds a '-transparency' option to the command line dat
utility.

I've uploaded a bitmap to demonstrate the benefits of the new
COLORCONV_KEEP_TRANS flag combined with the modified quantize.c code:
http://www.multimania.com/ebotcazou/pink2.zip

Load the bitmap in the grabber then grab a palette: only index 0 is
pink-colored.
Grab a bitmap and reduce it to 8-bit: not very nice !
Then enable the 'dither' option, grab and reduce again: much better but a
narrow blue strip now infringes upon the pink (transparent) strip.
Then enable the 'preserve transparency' option: the pink strip is now
untouched.

--
Eric Botcazou
ebotcazou@xxxxxxxxxx

Attachment: grabber2.zip
Description: Zip compressed data