Fixed [2.1.17] Animated Middle Textures with Holes

[Sryder]

Animated middle textures with holes in, when first showing the next frame of the animation, show garbage for a frame. They work normally after all the frames have been shown. This only occurs in the software renderer.
Example:

 

[Monster Iestyn]

Talking to Sryder earlier on IRC, it turns out this is because the textures in question are single-patch textures with holes, which I suspect the bug only applies to. I'm pretty sure for multi-patch textures this isn't a problem at least, on the other hand.

I'll probably fix this sometime in the next few days or so, we'll see what happens.

 

[Monster Iestyn]

A bug fix for this issue and an unrelated one is here: http://git.magicalgirl.moe/STJr/SRB2/merge_requests/144

 

[Monster Iestyn]

Merge request has been accepted, this bug can be marked fixed now. (lol triple post)