Refactor imgui backend code into imgui drivers for gl, vk, dx9
Generic GraphicsContext interface for gl/vk/dx9 contexts
Simplify graphics api switching code
dx9, gl(sdl): set swap interval based on monitor refresh rate.
Use same layout as gamepad arcade for on-screen gamepads (ABXYRL)
map RT and LT to buttons 5 and 6 in arcade
android: Fix non-working fast-forward button
Use maple port in lastAxisValue state
naomi: use default alienfnt buttons: 1-4
linux: look for legacy ~/.reicast and ~/.reicast/data
else look for ~/.config/flycast and ~/.local/share/flycast
and ~/.config/reicast and ~/.local/share/reicast
(defaults to flycast)
look for bios files in home folder and data folders (android, windows
,macos), then in game folder.
on linux, search in /usr/share/flycast and /usr/local/share/flycast and
legacy locations
store texture in the cache map instead of the heap
make related functions member of the class (CollectCleanup, killtex ->
Clear)
refactor common OSD stuff into rend/osd
vulkan support for OSD
Flyinghead