Reicast emulator 4 player support retropie

drewjbx

Hoping someone can help. I have an 4 player cab but I cant get 3 and 4 player working in the dreamcast emulator (tested with powerstone 2). Using 2 xin-mo controllers, mame 4 player games work great.
Is there something in the emu.cfg I need to change.. something to do with the event ID's?here is my cfg

[audio]
backend = oss
disable = 0

[config]
Debug.SerialConsoleEnabled = 0
Dreamcast.Broadcast = 4
Dreamcast.Cable = 3
Dreamcast.RTC = 1543277840
Dreamcast.Region = 3
Dynarec.Enabled = 1
Dynarec.idleskip = 1
Dynarec.unstable-opt = 0
aica.LimitFPS = 1
aica.NoBatch = 0
aica.NoSound = 0
bios.UseReios = 0
homedir = /home/pi
image = /home/pi/RetroPie/roms/dreamcast/Power Stone 2 (USA).cdi
pvr.MaxThreads = 3
pvr.Subdivide = 0
pvr.SynchronousRendering = 0
pvr.rend = 0
rend.UseMipmaps = 1
rend.WideScreen = 0
ta.skip = 0

[dispmanx]
height = 480
maintain_aspect = yes
width = 640

[input]
evdev_device_id_1 = 3
evdev_device_id_2 = 4
evdev_device_id_3 = 5
evdev_device_id_4 = 6
evdev_mapping_1 = /opt/retropie/configs/dreamcast/mappings/controller_XinmotekXinmotekDualController.cfg
evdev_mapping_2 = /opt/retropie/configs/dreamcast/mappings/controller_XinmotekXinmotekDualController.cfg
evdev_mapping_3 = /opt/retropie/configs/dreamcast/mappings/controller_XinmotekXinmotekDualController.cfg
evdev_mapping_4 = /opt/retropie/configs/dreamcast/mappings/controller_XinmotekXinmotekDualController.cfg
joystick_device_id = -1

[omx]
audio_hdmi = yes
audio_latency = 100

[players]
nb = 4

[reios]
ElfFile = 

[testing]
ta.HashCheckFile = 
ta.HashLogFile = 

[validate]
OpenGlChecks = 0

[x11]
fullscreen = 1

quicksilver

Did you double check that evdev_device_id's match the controllers /dev/input/event number?

drewjbx

@quicksilver said in Reicast emulator 4 player support retropie:

Did you double check that evdev_device_id's match the controllers /dev/input/event number?

not quite sure how to check that.. its not the jstest is it?

quicksilver

@drewjbx navigate to /dev/input/ and see what events are listed there.

drewjbx

Showing events 0 thru 6... js0 to js3, maybe change the evdev_device_id's to 0-3 rather than 3 to 6?

evdev_device_id_1 = 3
evdev_device_id_2 = 4
evdev_device_id_3 = 5
evdev_device_id_4 = 6

quicksilver

@drewjbx try 1-4. We already know 3 and 4 are working right?

drewjbx

Getting closer, yes 3 and 4 work. Got joystick controls working for players 3 and 4, also button selection (A,B, X, Y). But start button not working which is needed to start powerstone. The reicast config only does controller 1 mapping but uses the button codes across all controllers I assume...

This seems to work but no start button...

evdev_device_id_1 = 3
evdev_device_id_2 = 4
evdev_device_id_3 = 1
evdev_device_id_4 = 2

quicksilver

@drewjbx start button is not working for all controllers or just controllers 3-4?

Also have you run the reicast-joyconfig yet to determine the correct mapping for your particular control setup?

drewjbx

Don't think its going to work, yes I ran reicast-joyconfig…. for P1 and P2 I have 6 action buttons and then a coin and start button. The 6 actions button cover A,B,X,Y, LT, RT. So button number 7 ends up being the start button. For P3 and P4 I only have 4 action buttons plus the coin and start button. So the coin/start button end up being LT and RT. 1 button short for a start button. Hope that all makes sense.
If there was a way you can map each controller it could work but doesn't seem you can with reicast. Good to know 4 players does work though, can always use game pads for P3 and P4. Thanks for the help.

btn_a = 288
btn_b = 289
btn_x = 291
btn_y = 292
btn_start = 295

btn_trigger_left = 290
btn_trigger_right = 293

quicksilver

@drewjbx why dont you create a second config file for players 3-4 with the buttons slightly remapped? Probably could use the coin button as start or something?

Edit:how often are both triggers used in game?