bugGNUstep - Bugs: bug #22409, Images displaying incorrectly in...

 
 

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bug #22409: Images displaying incorrectly in some cases....

Submitted by:  Gregory John Casamento <gcasa>
Submitted on:  Mon 25 Feb 2008 12:20:48 AM UTC  
 
Category: Gui/AppKitSeverity: 3 - Normal
Item Group: BugStatus: Fixed
Privacy: PublicAssigned to: Fred Kiefer <FredKiefer>
Open/Closed: Closed

Mon 25 Feb 2008 03:37:11 PM UTC, comment #2:

The images where not flaged as having a changed format. That way the image was unpremultiplied over and over again resulting in a black area. This should be fixed in SVN now.

Fred Kiefer <FredKiefer>
Project MemberIn charge of this item.
Mon 25 Feb 2008 01:14:24 PM UTC, comment #1:

It really would help if you supplied some information on which backend is showing this behaviour. Most likely it will be art our default backend and there has been one significant change in this area.

As I explain in great detail in bug report #22247, the whole bitmap image handling in GNUstep was screwed up. Some backends use pre-multiplied alpha and others don't and for the loaded images the same holds true. What I changed was the the art backend now turns all displayed bitmaps to non-pre-multiplied before drawing, as this is the format it understands.
It is quite likely that now images look different. On the other hand it is also possible that the code in [NSBitmapImageRep _unpremultiply gets some cases wrong. I will look into this specific issue right now. Is it correct that this is FileProject.tiff from projectcenter/Images?

Fred Kiefer <FredKiefer>
Project MemberIn charge of this item.
Mon 25 Feb 2008 12:20:48 AM UTC, original submission:

Please see the attached. The PC.project file should have a white background with what looks like text in it. The same thing happens with the TextEdit icon.

Prior to a couple of weeks ago they were displaying correctly.

G

Gregory John Casamento <gcasa>
Project Administrator

 

Attached Files
file #15106:  image_issue.jpg added by gcasa (54KiB - image/jpeg - Shows inverted background for the PC.project image)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by FredKiefer (Posted a comment)
  • -unavailable- added by gcasa (Submitted the item)
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    Follow 7 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sat 29 Nov 2008 02:06:40 PM UTCFredKieferStatusReady For Test=>Fixed
      Open/ClosedIn Test=>Closed
    Mon 25 Feb 2008 03:37:11 PM UTCFredKieferStatusIn Progress=>Ready For Test
      Open/ClosedOpen=>In Test
    Mon 25 Feb 2008 01:14:24 PM UTCFredKieferStatusNone=>In Progress
      Assigned toNone=>FredKiefer
    Mon 25 Feb 2008 12:20:48 AM UTCgcasaAttached File-=>Added image_issue.jpg, #15106

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