[PATCH] windowscodecs: Add support for DIB format.

Vincent Povirk madewokherd at gmail.com
Mon Jan 21 10:17:15 CST 2013

> I'd suggest to use public APIs instead of inventing "extenstions".
> CreateBitmapFromMemory should work for this purpose if you really need
> to do it using windowscodecs, otherwise GDI APIs may work as well.

I've been of the opinion that we should have a separate dll for Wine
extensions to WIC, which could also work on WIndows, but I was told to
put them in the same dll. We have two extensions already: the ICNS
encoder and the TGA decoder.

Yes, there are other ways we could do this. Probably GDI is the next
simplest way. However, this is a case where we can very easily reuse
code that was already written to support the BMP and ICO decoders as
well as the code in d3dx9 that uses WIC decoders, so to me it still
seems like the best option.

(I was setting up for this when I was working on the ICO decoder, but
that was only a matter of keeping separate the two changes I had to
make in the logic for reading ICO frames, and writing
DibDecoder_CreateInstance so anyone who went to implement a new one
would see it.)

The GUIDs for the other extensions are defined in private headers
rather than wincodecs.idl, so I guess we should do that here.

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