[Mesa-dev] [Bug 84566] Unify the format conversion code

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=84566

--- Comment #24 from Iago Toral <itoral at igalia.com> ---
Jason, what do you think we should do for GL_COLOR_INDEX + GL_BITMAP?

Currently this is handled as a special case in the texstore.c ubyte path
(store_ubyte_texture), specifically, the special case handles extracting
indexed color data so that the incoming pixels can be represented as an RGBA
image, then do the conversion from RGBA to dst normally.

We do not have a Mesa format for this combination.

I think we have two options:
1) I guess we could create a mesa_format, detect this case specifically in the
master function and handle it there.
2) The other option would be to let clients deal with it. That would involve
letting them transform it to RGBA before they call the master function.

What do you think?

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