bugGNUstep - Bugs: bug #19974, Some images not handled correctly


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bug #19974: Some images not handled correctly

Submitted by:  Stef <stefanbidi>
Submitted on:  Sat 26 May 2007 01:45:42 PM UTC  
Category: Gui/AppKitSeverity: 3 - Normal
Item Group: BugStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Open

Tue 24 Oct 2017 10:24:27 PM UTC, comment #5:

From what I understand, the art backend is borderline deprecated, right? Maybe we can close this bug?

Stef <stefanbidi>
Project Member
Tue 02 Oct 2007 11:17:39 PM UTC, comment #4:

Change into a GUI problem.

Fred Kiefer <FredKiefer>
Project Member
Mon 28 May 2007 02:55:20 PM UTC, comment #3:

Yes, sorry that I forgot to mention that, this was on the art backend.

Stef <stefanbidi>
Project Member
Mon 28 May 2007 11:08:35 AM UTC, comment #2:

I had a look at the two images that you send along with the original post to the mailing list (test.png and test.tiff). These were both 48 bpp images. I am a bit surprised that GNUstep supports that format at all. Was this with the standart art backend?

The most likely place to start looking for the origin of the problem is [NSBitmapImageRep TIFFRepresentationUsingCompression:factor]. I would expect that either we set some tiff paramters incorrectly here, or the code in tiff.m is not able to handle this format.

Fred Kiefer <FredKiefer>
Project Member
Sat 26 May 2007 01:50:43 PM UTC, comment #1:

Well, it turns out all 3 images larger than 512kB, which means Savannah doesn't allow them to be uploaded. If you would like a copy of these images let me know and I'll e-mail them.

Stef <stefanbidi>
Project Member
Sat 26 May 2007 01:45:42 PM UTC, original submission:

If I take a screenshot using the command:
$ import -window root test.png
it produces the "test.png" image attached! If I then open this image in a GNUstep app and save it as a TIFF I end up with "test.tiff" (the other attached image).

This was done using PhotoClip, but I don't think the problem is particular to that app because if I try to view "test.png" using GWorkspace's Content Inspector I end up with something that looks like the screenshot named "gworkspace_content.png". As you can see, by viewing that image in GNUstep it somehow gets screwed up.

This is reproducable everytime, no matter how many times I create a screenshot using the "import" command. As you can see from the other images on my desktop, it doesn't happen with every image.

Stef <stefanbidi>
Project Member


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  • -unavailable- added by FredKiefer (Posted a comment)
  • -unavailable- added by stefanbidi (Submitted the item)

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    Follows 1 latest change.

    Date Changed By Updated Field Previous Value => Replaced By
    Tue 02 Oct 2007 11:17:39 PM UTCFredKieferCategoryApplication=>Gui/AppKit

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