[gs-bugs] [Bug 690069] Ghostscript generates large PCL-XL files

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=690069





------- Additional Comments From htl10 at users.sourceforge.net  2009-10-24 22:22 -------
With rotation patch, DeltaRow compression seem to do worse than RLE:
       
attachment 4391:   672883   671351   739965   738433
attachment 4392: 12411437  4292701 12410256  5876405
attachment 4422:            (222k?)  609409   226669

Without the rotation patch, it does give a 2x on 4391:
                            color        mono
261131850   261131542   136898647   136875859
63348733   47028769     63747550     48359062

So DeltaRow compression is rarely worth it. The size of 5.8MB vs 4.3Mb (RLE) is
somewhat interesting - RLE has visual artifects, and DeltaRow causes
segmentation fault (new bug, 690844).

I guess I'll throw in jpeg compression as well, to see how it pans out. 



------- You are receiving this mail because: -------
You are the QA contact for the bug, or are watching the QA contact.