42968 - BeOS needs PNG 8-bit alpha transparency

Status: VERIFIED FIXED

(Core :: Graphics: ImageLib, defect, P3)

Description

[Chris Hill]

nsImageBeOS needs some minor modifications to support 8-bit masks needed for PNG 
support

Comment 1

[Chris Hill]

Attachment: proposed patch

Comment 2

[Sebastian Späth]

Confirming, adding patch keyword, changing component to imagelib

Comment 3

[rods (gone)]

I am trying to get this bug to the right person.

Comment 4

[matt]

As mozilla for Be isn't properly loading at this point, I'm going to throw this 
to ASSIGNED and make it my responsibility to check/fix/apply patch when we have 
the port back up to parity and *displaying* images again.

Comment 5

[Matthew Zahorik]

Okay, Mozilla is loading well enough to test this bug.  (pulling network pages
starting today)

The gfx and widget libraries are entirely rewritten, so this may be a moot bug.

I'll have someone test for proper 8-bit PNG transparency and will either retire
the bug or re-submit a new patch off current sources.

I'm marrying in 8 days, so I'm a bit too swamped to check it myself (:

- Matt

Comment 6

[[e-mail]]

If you need to implement the 8bit alpha compositor (the DrawComposited family of
functions) separately on BeOS then please DO NOT make the same mistake as the
present implementations for Windows and Unix.
See Bug 51179 for what's apparently wrong with those implementations.

Comment 7

[Paul]

This seems to be working now.  I was able to view an 8-bit alpha transpaency PNG image at http://www.libpng.org/pub/png   

Should this be marked resolved?

RESOLVED WORKSFORME

Comment 8

[hacker formerly known as [e-mail]]

I think Pavlov fixed this with his other libimg2 cleanups.

Comment 9

[Kai Lahmann (is there, where MNG is)]

v