[Bug 59545] New: IWICFormatConverter missing for 2bppGray, 4bppGray, 16bppGray

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59545

            Bug ID: 59545
           Summary: IWICFormatConverter missing for 2bppGray, 4bppGray,
                    16bppGray
           Product: Wine
           Version: 11.5
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: windowscodecs
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Same issue as Bug 59517 (BlackWhite)
https://bugs.winehq.org/show_bug.cgi?id=59517

wich is now fixed in Wine 11.5. The pixel format converter table in converter.c
still has NULL handlers for 2bppGray, 4bppGray and 16bppGray.

CanConvert() returns true for these formats, but Initialize() fails with
WINCODEC_ERR_UNSUPPORTEDPIXELFORMAT.

I have a patch ready (tests + Implementation) based on the same pattern as the
BlackWhite fix.

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