bugGNUstep - Bugs: bug #25216, Cairo backend does not work on...

 
 

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bug #25216: Cairo backend does not work on Windows

Submitted by:  Adam Fedor <fedor>
Submitted on:  Wed 31 Dec 2008 04:16:25 AM UTC  
 
Category: BackendSeverity: 3 - Normal
Item Group: BugStatus: None
Privacy: PublicAssigned to: None
Open/Closed: Open

Wed 01 Apr 2009 08:02:23 AM UTC, comment #1:

I am not familiar with cairo on Windows, but on the cairo mailing list there recently was a posting that claims that cairo wont support an alpha chanel on Windows directly. You will have to use cairo_win32_surface_create_with_dib() to get full alpha support for your surface.
This could well explain the second issue you are facing.

Fred Kiefer <FredKiefer>
Project Member
Wed 31 Dec 2008 04:16:25 AM UTC, original submission:

The are a number of issues:

1. backend does not default to a known font if the "default" font (Helvetica) is not found (easy workaround is to set the default font to a known font).

2. Images are not displayed.

3. After a window redraw or two, the window turns black and you get the error message "Cairo status 'out of memory' in copy'"

See screenshots for more info.

Adam Fedor <fedor>
Project Administrator

 

Attached Files
file #17178:  Picture 3.png added by fedor (172kB - image/png)
file #17179:  Picture 4.png added by fedor (230kB - image/png)

 

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 fedor (Submitted the item)
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    Follow 2 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Wed 31 Dec 2008 04:16:25 AM UTCfedorAttached File-=>Added Picture 3.png, #17178
      Attached File-=>Added Picture 4.png, #17179

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