Can't load save games on latest betas

[3371-Alpha]

The title pretty much says it all. Whenever I attempt to load a previous save, it always tells me I can't load the game "because it was created by a previous version of zDoom", never mind that the file was created with that very version. Considering I'm on PowerPC, I'm going to assume this is another endianness issue. What do you think?

[Major Cooke]

Welcome to the betas, where barrels leak acid and explode all over your saved games.

To summarize, the saved version code has to be upped every so often whenever an otherwise save-breaking change occurs. Yes, it may look like it's on the same version with the fancy 2.8.1, but that's just glossing over the internal numbers. Expect development builds to break your saved games every so often. Treat them as dime-a-dozen.

[3371-Alpha]

Well that's just the thing, I backed up my original 2.8.1 files and stored them away. I created a new game while trying out the latest beta yesterday and now it doesn't want to load it.

[_mental_]

Upload saved game in question somewhere or even attach to the forum post if it's small.

[3371-Alpha]

Alright, Here's a save from the latest beta from TeamDRD's site. I'm playing PERDITION'S GATE with Doom 2 BFG edition on this one, of course I also get the same result without iwads and with the original doom 1 & 2.

[Graf Zahl]

That savegame is corrupt, it cannot be opened at all, not just with ZDoom but also with any Zip decompression utility I tried. It's no surprise that ZDoom cannot load it. The real mystery is, how this got created, because I have never seen something like it.
I'M afraid, you'll have to tell us a bit about the computer where this happens.

[_mental_]

Considering it's PowerPC it can be endian issue indeed. Or even unaligned memory access but IIRC it should crash instead of reading/writing random values.
I'll check this issue soon but don't except a quick fix as I don't have working C++ 11/14 compiler with PPC target. Blzut3 definitely has required version of GCC and I hope he will share it with me.

[Graf Zahl]

Yeah, sounds like it. Possibly just a LittleLong call missing somewhere. The big question is, how to find it...

[3371-Alpha]

I'm not sure if this will be of any help, but Cameron Kaiser ("ClassicHasClass") of TenFourFox and Tobias Netzel of Leopard Webkit might have some advice for where to search. Both are avid PPC users and both have back ported their own web browsers to PPC Macs.

[Graf Zahl]

How would that help finding a problem somewhere in ZDoom's code base. I'll have to sift through the entire Zip writing stuff to find the problem because those godforsaken Zip decompressors only tell me that the file is corrupt, they do not tell me WHAT is corrupt.

[_mental_]

It appeared to be pretty simple to fix, here is a pull request. I added a few small macOS related fixes for issues I discovered in the process.

[3371-Alpha]

Oh, thanks. Also sorry Graf Zahl about the irrelevant suggestion, I'm not that experienced with compiled apps.