[Bug 38581] Petka 1: some objects render without transparency

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=38581

--- Comment #21 from Stefan Dösinger <stefan at codeweavers.com> ---
Created attachment 52168
  --> https://bugs.winehq.org/attachment.cgi?id=52168
Write a debug line when converting surfaces

The DDCKEY_COLORSPACE thing may be a red herring altogether. I noticed that the
app calls SetColorKey with a non-range key shortly after the failing
SetColorKey call and before the surface is used for blitting.

I did notice though that the game mixes 16 bit and 32 bit pixel formats. It's
possible that we're doing converted blits, and we don't take the color key
along during the conversion.

This patch adds a debug statement ("converting surface from...") that prints
the color key flags of the source surface. Please run the game with this patch
and look for these lines. Attach the output (no debug flags needed).

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