GPU: Consider timeout parameter on AcquireSwapchainTexture/Wait/WaitForFences

[thatcosmonaut]

Raising this as a potential ABI issue.

I honestly can't tell if exposing this is worse than not exposing it, but it's conceivable that the client might want to be able to handle these situations instead of stalling forever.

[slouken]

For the thread synchronization objects we have SDL_Wait...() and SDL_Wait...WithTimeout()

[thatcosmonaut]

Yeah it does sound nice to split them up. If that's the case we can add it even after the freeze.

[slouken]

Yeah it does sound nice to split them up. If that's the case we can add it even after the freeze.

Yep.