* Add support for RPI4 and generic KMS targets
* Allow configuration of rpi3 platform in favour of rpi2 platform
* Move build configuration into separate function to avoid duplication between
build and install functions.
* avoid duplication of addEmulator definitions due to audio backend options
* Set alsa as default audio backend for mesa (omx doesn't work, and oss backend via
aoss causes emulator stuttering).
Patch details (may be removed after upstream is fixed):
* Add SDL/gles2 sub-platform for rpi4 to allow kmsdrm compatibility
* Ensure vsync is enforced for SDL, otherwise KMSDRM will run at unlocked framerate.
* Fix signal handler conflict by disabling SDL2's exit signal handler, and ensuring that
reicast gracefully cleans up by stopping emulation and invoking SDL_Quit() during exit.
* don't use broken symlink - incompatible with fat32. Use a +Start script
* rework reicast.sh launch script parameter handling so ROM / AUDIO settings are only added if included on commandline
* get rid of _INFMSGS and instead have a rp_module_help field with information in.
this can then be displayed in the setup menus, and not just after configuring.
* rp_module_menus is no more - instead use rp_module_section with one of
- core (core packages)
- main (main packages - which will be installed by default in the image)
- opt (optional packages)
- exp (experimental packages)
- driver (driver packages)
- config (configuration packages / tools)
* The setup menu organises the data based on the above sections. more could be added in the future if needed. Packages (internally modules), can be added / configured / removed individually, or as entire sections.
* The setup menu will automatically detect if a binary is available to be installed. the nobin flag is no longer needed. modules that install directly from binary via aptInstall or via a prebuilt binary need to use an install_bin_ function instead of install_
* rp_module_section of type "config" will have the "gui_" function called first if it's available, otherwise a standard depends/sources/build/install/configure will be called
* configure is no longer used for "gui" configuration function - use gui_ instead. Had already started to move to this before, but now it is required.
-use /configs/all/autoconf.cfg to enable/disable autoconf functionality.
-add two new functions to add set read config file content.
-add functions to mupen64plus and reicast modules.
