* (3DS) Add bottom screen menu
-> User can save/load state on botom screen with thumbnail.
-> Call a save_state_to_file() when RAM state has data to write a disk.
-> If the bottom screen needs updating, swap the bottom framebuffers.
Add: SAVE/LODE STATE TO RAM
-> This is useful for devices with slow I/O
-> 3DS bottom save state use CMD_EVENT_SAVE_STATE_TO_RAM
-> 3DS bottom load state use CMD_EVENT_LOAD_STATE when RAM state has no data
-> 3DS bottom load state use CMD_EVENT_LOAD_STATE_FROM_RAM when RAM sate has data
* Rewrite path_get_state to retroarch_get_current_savestate_path
* Fix unterminated state_path
This fixes programs using /dev/uinput to create a virtual keyboard failing
to be detected on startup. Usual symptom is some sort of GPIO-based
controller that looks like a keyboard to the OS and can control
EmulationStation, but fails to work in-game unless you restart the program
while the game is running (in which case udev_input.c's hotplug code, which
was using the correct key, would pick it up).
== DETAILS
After a bisect, the culprit was changing the gamepad interface from
returing a single button (bool) to multiple (int16).
The issue is that the Wii U gamepad (and presumably the Pro controller too)
have more than 16 buttons, which means some buttons get lost. Notably, L3 (18)
and R3 (17).
The solution: use int32 instead of int16.
I did a test build and confirmed that this change restores L3/R3 functionality
with the gamepad. Don't have a pro controller to test, but it should work too.
This change makes the call to 'udev_enumerate_scan_devices' much faster.
In particular, for some bluetooth devices, this function may implicitly
read its battery's virtual file 'uevent', e.g.
/sys/devices/*/usb1/1-1/*/bluetooth/hci0/*/power_supply/hid-*-battery/uevent
Reading this file may (for unknown reasons) block up to 10 seconds.
Since udev_enumerate_scan_devices is called 4 times (for keyboard,
mouse, touchpad, and joypad) during startup this may cause a
considerable delay.
Limiting the scan to subsystem 'input' yields the same devices but makes
the scan faster and does not read 'uevent' of the input controller's
power_supply.
Fixed typo
added delay between winraw rect change to fix roslution changing issues.
added more comments
added delay reset
Fixed typo
updated comments
added RECT size to log
updated logging
