Implement a new version of advmenu to support advmess #772
Description
Since sdl1.2 cannot be used for two applications at the same time, advmame is configured as a "generic" emulator and my advmenu launcher script manages the transition between advmenu and advmame.
It's nice but not ideal because with this script we can't use advmess and we loose some features of advmenu like the time-tracking.
So Trngaje firstly made a version of advmenu which was running advmame then killing itself . But it wasn't working because during a short lap of time there was two SDL apps in the same time (-> black screen).
So he has created a way to shutdown SDL video and audio output on advmenu just before running advmame or advmess.
Last version here.
It works fine but we need to change the logic of the script to manage this new behavior.
Advmess will require a new config file and a dedicated path for its roms.
Waiting for Trngaje modifications sources.