After my first project (https://gbatemp.net/threads/ctroll3d-control-the-citra-emulator-from-your-3ds.584275/) that almost no one cared about (me included), I have a new idea that I'm sure will meet the same fate.
The project consists of implementing an input redirection server and embedding them in some homebrews (like emulators, for example), enabling support for 2 players using an external controller.
The idea of reusing the input redirection protocol simplifies things, because we can use clients that already exist (including an android version). This way we can support 2 players with a small setup like this:
(your dear 3ds, a small blueetooth controller and some old android device)
For now I have created ports of blargSnes and snes9x_3ds emulators, which can be downloaded from github at the links below:
blargSnes: https://github.com/CarlosEFML/blargSnes/releases
snes9x_3ds: https://github.com/CarlosEFML/snes9x_3ds/releases
Android Input Redirection: https://github.com/JambonBeurreMan/InputRedirectionClient-Qt-Android/releases
Windows Input Redirection: https://github.com/mastermune/InputRedirectionClient-Qt/releases
To configure:
1 - Run the InputRedirectionClient (android or windows).
2 - Connect your controller to your PC (windows) or Android running the InputRedirectionClient.
3 - Put the 3DS IP address in the InputRedirectionClient running on PC (windows) or Android.
4 - DO NOT enable InputRedirection (it is disabled by default) in the 3ds custom firmware (if you have it enabled, you must disable it). Emulators have their own InputRedirection server that will redirect controls to player 2.
5 - Run the emulator on 3DS and start a game with 2 players support.
NOTE:
It is possible to use your android as a wifi hotspot and eliminate dependency on an external router. However, it is necessary that the android has a working data connection, as the 3DS will disconnect from the hotspot if it does not detect an internet connection.
Q&A:
1 - Is there any input lag using this method?
A: Of course it is! It works over the wifi network, so it will depend on your environment. And there must also be latency in the InputRedirectionClient implementation itself.
So <bluetooth latency> + <wifi latency> + <emulator latency> + <possible latency in the implementation of InputRedirection Client/Server> = <PERCEPTIVE LATENCY> (hopefully not too big)
2 - Isn't it a little awkward to play with 2 players on 3DS?
A: Of course it is! Just imagine 2 players sharing a small device like 3DS, where player 1 is holding the device in front of him and player 2 is completely uncomfortable and always looking for a better position to be able to see the screen...
The project consists of implementing an input redirection server and embedding them in some homebrews (like emulators, for example), enabling support for 2 players using an external controller.
The idea of reusing the input redirection protocol simplifies things, because we can use clients that already exist (including an android version). This way we can support 2 players with a small setup like this:
(your dear 3ds, a small blueetooth controller and some old android device)
For now I have created ports of blargSnes and snes9x_3ds emulators, which can be downloaded from github at the links below:
blargSnes: https://github.com/CarlosEFML/blargSnes/releases
snes9x_3ds: https://github.com/CarlosEFML/snes9x_3ds/releases
Android Input Redirection: https://github.com/JambonBeurreMan/InputRedirectionClient-Qt-Android/releases
Windows Input Redirection: https://github.com/mastermune/InputRedirectionClient-Qt/releases
To configure:
1 - Run the InputRedirectionClient (android or windows).
2 - Connect your controller to your PC (windows) or Android running the InputRedirectionClient.
3 - Put the 3DS IP address in the InputRedirectionClient running on PC (windows) or Android.
4 - DO NOT enable InputRedirection (it is disabled by default) in the 3ds custom firmware (if you have it enabled, you must disable it). Emulators have their own InputRedirection server that will redirect controls to player 2.
5 - Run the emulator on 3DS and start a game with 2 players support.
NOTE:
It is possible to use your android as a wifi hotspot and eliminate dependency on an external router. However, it is necessary that the android has a working data connection, as the 3DS will disconnect from the hotspot if it does not detect an internet connection.
Q&A:
1 - Is there any input lag using this method?
A: Of course it is! It works over the wifi network, so it will depend on your environment. And there must also be latency in the InputRedirectionClient implementation itself.
So <bluetooth latency> + <wifi latency> + <emulator latency> + <possible latency in the implementation of InputRedirection Client/Server> = <PERCEPTIVE LATENCY> (hopefully not too big)
2 - Isn't it a little awkward to play with 2 players on 3DS?
A: Of course it is! Just imagine 2 players sharing a small device like 3DS, where player 1 is holding the device in front of him and player 2 is completely uncomfortable and always looking for a better position to be able to see the screen...
Last edited by CarlosEFML,
