[bug #48801] Progressive JPEGs are not supported

[felix]

URL:
  <http://savannah.gnu.org/bugs/?48801>

                 Summary: Progressive JPEGs are not supported
                 Project: GNU GRUB
            Submitted by: felix_s
            Submitted on: Tue 16 Aug 2016 07:20:55 PM GMT
                Category: User Interface
                Severity: Major
                Priority: 5 - Normal
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Git master
         Reproducibility: Every Time
         Planned Release: None

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Details:

Attempting to set a progressive JPEG file as a background image (after loading
all appropriate modules and setting video mode, of course) results in the
following message:


error: invalid argument.


I'd like progressive JPEGs to be supported. Failing that, I'd like a more
informative error message.

Speaking of the latter, I noticed that the string "invalid argument" appears
as an error message in seven different places in GRUB source code. The
vagueness of this message is not helpful to anyone who wishes to investigate
the source of it.




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