Phatch

Paste RGBA on RGBA is incorrect

Bug #532356 reported by Nadia Alramli on 2010-03-05

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Phatch	Fix Released	Critical	Stani	Phatch 0.2.7 "Bug Fix"

Bug Description

I ran the acceptance test on the background action and compared one of the results with what gimp would produce.

Revision history for this message

Nadia Alramli (nadiana) wrote on 2010-03-05:

gimp_phatch.zip Edit (59.4 KiB, application/zip)

Stani (stani) on 2010-03-05

Changed in phatch:
importance:	Undecided → Medium
milestone:	none → 0.2.8
status:	New → Confirmed

Revision history for this message

Stani (stani) wrote on 2010-03-05:

gimp_phatch.tar.gz Edit (125.5 KiB, application/x-tar)

The problem is not in the alpha channel, but in the RGB channels. During the pasting Phatch is adding black. See bee.xcf which has the different images as layers with the alpha channel removed.

Changed in phatch:
milestone:	0.2.8 → 0.2.7

Revision history for this message

Stani (stani) wrote on 2010-03-05:

Actually this bug is not rare at all and is far more serious as expected. It occurs whenever you want to paste an image with an alpha channel on top of another image with alpha channel. We need to scan all occurrences of paste to see if it is correct. imtools.paste now does seem to do the right thing identical to Gimp.
http://bazaar.launchpad.net/~stani/phatch/trunk/revision/1703

summary:	- Colors a little different between gimp and phatch + Paste RGBA on RGBA is incorrect
Changed in phatch:
assignee:	nobody → stani (stani)
importance:	Medium → Critical
status:	Confirmed → Fix Committed