GNOME Bugzilla – Bug 72881
Incorrect RGBA resampling in the navigation windows
Last modified: 2005-01-01 21:56:06 UTC
If two pixels have different opacity values (alpha channel), then their colors are not averaged correctly by the navigation windows. This affects both the one accessed by clicking on the cross in the bottom right corner of the image and the one accessed via View->Nav. Window. See bug #70335 for some test images and a longer description of the problem. This problem affects many other tools and plug-ins.
Changed target milestone of several bugs to 2.0 - these are not features, and don't look to me like blockers for a pre-release, but they have to be addressed before 2.0. Dave.
Bumping the milestone for this bug, and all that depend on it, to 2.2. In the absence of someone actively working on this, there is no point keeping it on the 2.0 milestone. If someone wants to work on this, fixes to this family would also be accepted on the stable branch. Dave.
Is this still a bug? I can't see anything particularly unusual with Raphaël's test images. I see an extremely faint outline around the circle, but the other image is completely white.
Bumping the milestone for this bug to Future. In the absence of someone actively working on this, there is no point keeping it on the 2.2 milestone.
Fixed in CVS: 2004-12-15 Michael Natterer <mitch@gimp.org> Sven Neumann <sven@gimp.org> * app/core/gimpdrawable-preview.c (gimp_drawable_preview_scale): fixed RGBA resampling by using premultiplied values for the intermediate accumulation buffer. Fixes bugs #72880 and #72881.