[Bug 56755] New: White textures in EverQuest (Unsupported Conversion in windowscodec/convert.c)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=56755

Bug ID: 56755
           Summary: White textures in EverQuest  (Unsupported Conversion
                    in windowscodec/convert.c)
           Product: Wine
           Version: 9.10
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: windowscodecs
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 76545
  --> https://bugs.winehq.org/attachment.cgi?id=76545
Logs containing the FIXME messages described above.

From what I have been able to read this bug was introduced earlier this year
when Daybreak updated EverQuest to use DirectX 11.

The logs report the following error messsage:

0340:fixme:wincodecs:FormatConverter_CanConvert Unsupported conversion
{6fddc324-4e03-4bfe-b185-3d77768dc90f} ->
{05ec7c2b-f1e6-4961-ad46-e1cc810a87d2}

The error message indicates specifically that a conversion failed from
16bppBGRA5551 to 32bppBGRA.

I have a minimal patch written up which addresses the issue for me. If this is
not a known issue that is being worked on I would not mind working on cleaning
it up and submitting it to the project.