I want to make my emulator's input(which is based on a combination of PSP-style input(for the Settings menu) and PC-style input(when enabled, mapping keyboard and mouse directly to the emulated inputs) compatible with touch-screen devices. It currently properly supports the PC and PSP/joystick mapped input. But it will need some additions to support the touch-based input.

Luckily, all input mapping is already in one file:
https://bitbucket.org/superfury/unipcemu/src/ … put.c?at=master

I guess it will need some SDL_touchfingerevents to properly map input to the PSP/PC input etc? It would also need some sort of reserved locations on the screen to open the keyboard and BIOS settings menu? What would be the best method to map touch input to the PSP input used in the settings menu?