PictView 32bit PNG bug

[crystalidea]

Hey!

Download the file
http://tango-project.org/releases/tango ... 7.2.tar.gz
I didn't check all files, but this one
tango-icon-theme-0.7.2.tar.gz\tango-icon-theme-0.7.2\22x22\animations\process-working.png
is displayed fully BLACK!
You can check the correct display using Axialis Icon Workshop or other...

Regards.

[zarevak]

Hi, the problem is in PNG file itself and PictView not supporting Alpha channel. The file specifies black as background color (in bKGD chunk) for programs without Alpha channel support.

[crystalidea]

It's a MUST to support alpha channels in 2007

[Jan Patera]

http://tango-project.org/releases/tango ... 7.2.tar.gz
I didn't check all files, but this one
tango-icon-theme-0.7.2.tar.gz\tango-icon-theme-0.7.2\22x22\animations\process-working.png

I don't understand why you don't send us direct emails, I have been asking you for about a year.
The image you are referring to is 64 bit. Just Hit F3 to check.
Alpha-blending of 64bit images is not (yet) supported.

[Jan Rysavy]

Moving to Feature Requests.

[crystalidea]

I have been asking you for about a year.
The image you are referring to is 64 bit. Just Hit F3 to check.
Alpha-blending of 64bit images is not (yet) supported.

Sorry, i don't like email. The same 16x16 picture in the archive is displayed OK. Check it.

[zarevak]

The same 16x16 picture in the archive is displayed OK. Check it.

The "same" 16x16 picture is in 32bit, but the problematic picture is in 64bit. The smaller picture also specifies white as background color.
I asumed the problem was with Alpha channel and the background color, because my own program displayed black picture as well (it uses LibPNG library v1.0.1).

EDIT: I just tested 64bit picture with background from PngSuite and LibPNG v1.0.1 in my program works fine, but PictView not. (picture bgyn6a16.png)