[Bug 2195906] New: ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

Bug ID: 2195906
           Summary: ImageMagick creates big-endian tiff images on aarch64
           Product: Fedora
           Version: 38
          Hardware: aarch64
                OS: Linux
            Status: NEW
         Component: ImageMagick
          Severity: medium
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail], [e-mail],
                    [e-mail],
                    [e-mail], [e-mail],
                    [e-mail], [e-mail],
                    [e-mail], [e-mail]
  Target Milestone: ---
    Classification: Fedora

When converting a PNG image to a TIFF image, ImageMagick unexpectedly creates
the image with big-endian byteorder although aarch64 is a little-endian
architecture.

Input test image is attached.

Reproducible: Always

Steps to Reproduce:
1. /usr/bin/convert normal.png -depth 32 -define quantum:format=floating-point
out.tiff
2. /usr/bin/convert out.tiff json: | grep endian -i
3. lscpu | grep 'Architecture|Byte Order'
4. ls -lh out.tiff
Actual Results:  
    "endianness": "MSB",
      "tiff:endian": "msb",
Architecture:                    aarch64
Byte Order:                      Little Endian
-rw-r--r--. 1 juser juser 43K May  6 12:40 out.tiff

Expected Results:  
    "endianness": "LSB",
      "tiff:endian": "lsb",
Architecture:                    aarch64
Byte Order:                      Little Endian
-rw-r--r--. 1 juser juser 5.9K May  6 12:40 out.tiff

NB: Also, the file size of the resulting tiff is much bigger than on x86_64
(f37), where it's just 5.9 KiB.

$ rpm -q ImageMagick
ImageMagick-7.1.1.4-3.fc38.aarch64
$ uname -a
Linux f38-aarch64 6.2.14-300.fc38.aarch64 #1 SMP PREEMPT_DYNAMIC Mon May  1
00:58:31 UTC 2023 aarch64 GNU/Linux

This issue also affects python3-img2pdf has this breaks a few of its unittests,
if they are running on aarch64. See also:
https://koji.fedoraproject.org/koji/taskinfo?taskID=100027658

[Bug 2195906] ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

--- Comment #1 from Georg Sauthoff  ---
Created attachment 1962764
  --> https://bugzilla.redhat.com/attachment.cgi?id=1962764&action=edit
Input PNG test image

[Bug 2195906] ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

Georg Sauthoff  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Doc Type|---                         |If docs needed, set a value

--- Comment #2 from Georg Sauthoff  ---
See also my upstream report:
https://github.com/ImageMagick/ImageMagick/issues/6300

[Bug 2195906] ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

Fedora Update System  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |MODIFIED

--- Comment #3 from Fedora Update System  ---
FEDORA-2023-27548af422 has been submitted as an update to Fedora 38.
https://bodhi.fedoraproject.org/updates/FEDORA-2023-27548af422

[Bug 2195906] ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

Fedora Update System  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|MODIFIED                    |ON_QA

--- Comment #4 from Fedora Update System  ---
FEDORA-2023-27548af422 has been pushed to the Fedora 38 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh
--advisory=FEDORA-2023-27548af422`
You can provide feedback for this update here:
https://bodhi.fedoraproject.org/updates/FEDORA-2023-27548af422

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information
on how to test updates.

[Bug 2195906] ImageMagick creates big-endian tiff images on aarch64

https://bugzilla.redhat.com/show_bug.cgi?id=2195906

Fedora Update System  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
   Fixed In Version|                            |ImageMagick-7.1.1.15-1.fc38
             Status|ON_QA                       |CLOSED
         Resolution|---                         |ERRATA
        Last Closed|                            |2023-08-24 01:31:34

--- Comment #5 from Fedora Update System  ---
FEDORA-2023-27548af422 has been pushed to the Fedora 38 stable repository.
If problem still persists, please make note of it in this bug report.