No longer try to import modules directly (we can do this if we really have to, but then we have to load it from the proper location) since we don't want to grab the system version of the package which may not be present or may be a different version. Support discovering .* imports inside .whl files that are on sys.path.
Matching makepanda, this avoids symbol conflicts and may have optimization benefits.
This is a temporary hack until CMake 3.24 is released, which offers a cleaner way of doing this.
We are already using target_link_options, and while it's possible to keep supporting older versions, it doesn't sound worth it. I can revert this out if someone gives me a really good reason to.
Fixes#1276
Also let's consistently use the term "assets" for all the application data (and not the gaming-specific term "game files") and use the term "data" for package data only
7-zip archives will only be created if 7-zip is available during the build phase. When 7-zip is unavailable, ZIP archives will be created as a fallback.
Benchmarks:
- Default ZIP compression: ~23.5 seconds, 162 MB
- 7-zip compression: ~7.5 seconds, 108 MB
- 7-zip compression, --lzma set: ~44 seconds, 88 MB
- 7-zip compression, solid archive: ~5 minutes, 83 MB (not implemented)
Closes#1261
The previous system was causing a lot of lock contention when transforms are modified in the Cull thread.
The new implementation doesn't use a linked list or lock at all, but a simple atomically incrementing integer that indicates that the prev transforms have changed. set_transform() reads this and backs up the prev transform the first time a transform is modified after reset_all_prev_transforms() is called.
Use Sleep(0) instead. Sleep(0) is not guaranteed to yield, which is a problem, but Sleep(1) can easily take up to 16 ms, which is really unacceptable except in very low-priority thread. But really, you shouldn't be relying on force_yield() for anything except with the SIMPLE_THREADS model.
There is also SwitchToThread(), but in fact it is even weaker than Sleep(0).
