[SDL] SDL Color-masking Blitting?

[Taylor Jeude]

I was curious if there was a built-in way to mask a surface and then blit it.  Basically, say I have a font or an image, and it is black and white -- nothing else.  I want to be able to mask the image (say with color 255,0,128, so I have a kind of dark red-magenta), and then blit it.  Is there a way that is built in?  If not, then am I basically just needing to write my own specialized Blit function to do this?  Or if anyone's already done this and is kind and doesn't mind divulging some open-source code, that'd be pretty cool too!

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