The old implementation always polled the local 1st Wiimote and used that as input for the Wiimote that is mapped to the player. But the reporting mode for Wiimotes can be different, even when using the same extensions. So an input for Wiimote 1 with a data size 4 could be used for Wiimote 2, which actually requires data size 7 at that time for example.
The 2nd problem was that the code added a dummy input into the buffer, when the reporting mode changed. But when the data from the other player hasn't arrived yet, the data in the buffer is out of order. Well, i think this is the problem, i'm not 100% sure, because i don't fully understand how the buffer works. But on the other hand, i'm pretty sure this will just force sync the players on reporting mode changes, instead of allowing them to be apart.
Pros:
- No more desyncs caused by big bugs in the code.
- Can use different extensions for different players.
Cons:
- Higher latency, because instead of polling 1 controller per player at once, all controllers are polled in order, send to the other players, before the next is processed.
- Have to setup the Wiimote, which the player is going to use, instead of the 1st one.
Now, if the controller config could temporarily be overridden with the one from another slot, the 2nd problem could be fixed. But at the same time, we would lose the ability to use different extensions. (unless we hack around it somehow, or properly send the used extension to the other players)
- Externals/soundtouch/CMakeLists.txt: add -w (since it's not our code) to
silence an unused variable warning
- Source/Core/Core/NetPlayClient.cpp: Work around a Clang/libc++ bug where
initializing a std::array the way the standard says you're supposed to produces
a warning. (libc++'s implementation of std::array, like any sane
implementation, has a C array as a field, so the most explicit form of
initialization would use two braces, one for the struct and one for the array.
Clang has a general warning for not being explicit with braces, which is
usually sane. But the standard only guarantees that initializing std::array
works with a single pair of braces!) There are other places in Dolphin that
incorrectly use double braces, presumably to avoid the warning, so maybe the
warning should just be turned off, but in any case here I just switch to an
equivalent .fill().
Before this variable was an u8, which could theoretically result in desyncs with a large buffer(greater than 255*120/200=153) filled with blank inputs. If this could actually happen, i don't know. But this part of the code on its own looks like it could break.
A static var is not a good idea, when the value needs to be reset for every session. Also, the variable holds the data size, so it makes sense to set the data size, where the data is added.
On master, when polling the 1st in-game controller, Dolphin would poll all the 1st local controllers. With the 1st commit, each client waits its turn, which would dramatically increase the lag.
Now with this commit, it even polls all local controllers at once, so it should have even less latency than master in a few setups. Like one player with 3 controllers and the 2nd one with just one controller.
This fixes issues with setups like:
Player 1 uses port 1 and player 2 uses port 3, or
player 1 uses port 2 and player 2 uses port 3, so nobody uses port 1
if the configured local pad is none, it will make dolphin behave
incorrectly (due to the game expecting inputs from the device while it
doesn’t exist).
Introduced in 6e13496d8, pads would get assigned to their netplay
position, which breaks assumptions. With this behavior, the SI devices
should be mapped properly.
This is only queried, there's no need to expose it for writing.
Even if it was written to, a data member shouldn't be part of
your public API unless its part of a dumb object or trivial struct.
Clients have no need to send their configuration information on start and the server straight out ignores it.
Not to mention it shouldn't try sending a struct as a null terminated string.
Cleans up how the server sends the configuration slightly as well.
So that it contains the current commit and not an arbitrary date that
may or may not be up-to-date. This will cause tears as people will not
be able to use netplay with one diverging commit that does not touch
anything related. On the other hand, users can’t be trusted.
Note - I removed a SleepCurrentThread(1) the patch added which seemed to
be unrelated to the actual job at hand. If there was a real need for it
(which sounds like it would be an enet-related bug - enet_host_service
is supposed to *sleep*), that needs to be dealt with...
I tried to change messages that contained instructions for users,
while avoiding messages that are so technical that most users
wouldn't understand them even if they were in the right language.
