snes9x-rpi controls broken? Retroflag Gpi

[spud11]

@SinisterSpatula Hi. On a new Retropie 4.5 image, I've been playing around with xboxdrv and Vice (the non-libretro Commodore 64 emulator). I've got some working code, albeit it is not perfect. It enables exiting with select + start and entering the F12 menu with select + x. Perhaps best of all though is that there is no need to switch the GPi (using select + left dpad) from hat to joystick/axis modes, which you would otherwise need to do with Vice. (The --trigger-as-button seems to help with this.)

My sdl-vice file which goes in the /opt/retropie/configs/c64/ folder is as follows:

 [C64]
MenuKey=293
MenuKeyUp=119
MenuKeyDown=115
MenuKeyLeft=97
MenuKeyRight=100
MenuKeySelect=102
MenuKeyCancel=101
MenuKeyPageUp=280
MenuKeyPageDown=281
MenuKeyHome=278
MenuKeyEnd=279
SoundDeviceName="alsa"
SoundSampleRate=22050
SoundBufferSize=100
AspectRatio="1.000000"
SDLWindowWidth=384
SDLWindowHeight=272
VICIIVideoCache=0
VICIIDoubleSize=0
VICIIFullscreen=1
VICIIFilter=0
SidEngine=0
SidModel=1
KeySet1North=119
KeySet1East=100
KeySet1South=115
KeySet1West=97
KeySet1Fire=102
KeySet2North=121
KeySet2East=106
KeySet2South=104
KeySet2West=103
KeySet2Fire=107
JoyDevice1=3
JoyDevice2=2
Mouse=1
ETHERNETCARTBase=56832
Acia1Base=56832

The xboxdrv code is as follows:

if [ "$2" = "vice-x64" ]
then
    sudo /opt/retropie/supplementary/xboxdrv/bin/xboxdrv >> /dev/shm/runcommand.log 2>&1 \
    --evdev /dev/input/by-id/usb-RetroFlag_GPi_Case_RetroFlag_01-event-joystick \
    --detach-kernel-driver \
    --silent \
    --force-feedback \
    --deadzone-trigger 15% \
    --deadzone 4000 \
    --mimic-xpad \
    --trigger-as-button \
    --evdev-absmap ABS_X=x1,ABS_Y=y1,ABS_RX=x2,ABS_RY=y2,ABS_Z=lt,ABS_RZ=rt \
    --ui-axismap X1=KEY_A:KEY_D,Y1=KEY_S:KEY_W \
    --evdev-keymap BTN_SOUTH=a,BTN_EAST=b,BTN_NORTH=x,BTN_WEST=y,BTN_TL=lb,BTN_TR=rb,BTN_THUMBL=tl,BTN_THUMBR=tr,BTN_MODE=guide,BTN_SELECT=back,BTN_START=start,BTN_TRIGGER_HAPPY3=du,BTN_TRIGGER_HAPPY4=dd,BTN_TRIGGER_HAPPY1=dl,BTN_TRIGGER_HAPPY2=dr \
    --evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \
    --ui-buttonmap b=KEY_F,y=KEY_Y,a=KEY_W,x=KEY_SPACE+KEY_ENTER,lb=KEY_1+KEY_Y,rb=KEY_2+KEY_N \
    --ui-buttonmap back=KEY_ESC,start=KEY_SPACE+KEY_ENTER,back+x=KEY_F12,back+b=KEY_Y,back+a=KEY_N,back+start=KEY_LEFTALT+KEY_Q \
    --ui-buttonmap du=KEY_W,dd=KEY_S,dl=KEY_A,dr=KEY_D \
&
fi

The keys used are W, S, A, D for movement and F for fire.

On the GPi, the B button is fire and I've mapped the A button to the W key so that for platform games, instead of pushing up on the dpad, you can just press the A button to jump.

I've tested this on Commando Arcade 2015, Berzerk Redux, Aviator Arcade II, Paradroid and Bruce Lee. All work fine. However, Boulder Dash got to the menu screen, but I couldn't get it to actually start the game.

Hope this is helpful.

[SinisterSpatula]

@spud11 This is awesome! Exciting to see someone else starting to play around with xboxdrv solutions for Gpi. I think right now many people are using lr-vice which for the most part has working controls without xboxdrv, the only issue they were saying was using the keyboard, to hit spacebar on intro screens. I just made a mapping for Duke Nukem 3D yesterday that came out really good. Perhaps we can work together on this stuff, if you're interested? You can find me on the superretropie FB group, and you can checkout any of the xboxdrv scripts I've written on this page (everything is open to use by anyone, you don't have to be in our group): https://sinisterspatula.github.io/SuperRetropieGuides/

[spud11]

@SinisterSpatula That's no problem at all. I probably won't join the Facebook group but am happy to contribute here and to have a look at the reddit pages.

With lr-vice and vice, the keyboard issue is a problem - more with lr-vice than vice. With vice and the above code, I've mapped some of the more obvious keys to the GPi's buttons, but it would be possible to map every key to one button alone. xboxdrv allows you to cycle through keys by repeatedly pressing a button. It's not a perfect solution but one which could work.

Perhaps more importantly, on reddit, I noticed someone asking about whether it was possible to make individual configurations for individual games. It is. An example would be as follows:

if [ "$3" = "/home/pi/RetroPie/roms/mame-advmame/temptube.zip" ]
then

(I use advmame on my Arcade machine so this is just an example for Tempest Tubes.)

If you haven't already done so, you might also want to check out @mediamogul's Advanced Mapping Guide for tips:

https://github.com/RetroPie/RetroPie-Setup/wiki/Universal-Controller-Calibration-&-Mapping-Using-xboxdrv

I've also installed your Super Retropie Guides which are really fantastic. I like what you did with both the hat and the axis/joystick modes. Addressing both in the one code block was very clever. I had not thought of that.

[spud11]

@SinisterSpatula The other thing I should add. Like you, I started using xboxdrv to ensure consistency in exiting all emulators. However, I also found that it was useful for old Arcade games which had 4-way (rather than 8-way) joysticks by using the --four-way-restrictor argument.

So for individual games such as Pacman that have 4 way restriction, you could set up an individual xboxdrv configuration with --four-way-restrictor which would resolve any diagonal issues. It is a very effective software solution.

I haven't played too many of the 4-way restricted games as yet on the GPi, so I'm not sure whether this is a problem with the GPi's dpad because it seems to default to the hat mode rather than axis/joystick mode, but I flag it in case people have had trouble with some of the controls for older Arcade games that require a 4 way restricted gate.

[SinisterSpatula]

Yep the $3 I had future plans to do. I think I'm going to move to the fancy way of doing the maps (where it's building the script on the fly so to speak, by just calling blocks of code, so you only write it once and then use the same code block for different mappings), but I thought that might over complicate things for me, early on. But eventually I want to do that. For right now, I just started a new repo where I plan to start basing the mappings off using the alternate D-pad mode, and moving my mappings out of onstart.sh and using a source command inside it instead, to call my mappings that way. My new repo is at: https://github.com/SinisterSpatula/Gpi2/ everything is updated except for the mappings themselves. (working on that next)

[spud11]

@SinisterSpatula I think this is a very good idea. Whatever is ultimately easiest for you in designing the code and updating it is definitely the way to go. You've really helped (and are continuing to help) the GPi community which is great.

The only thing I'm wondering about is whether using the alternate D-pad method permanently will require people to press the SELECT+DPAD LEFT before they start any game and then switch back to the "normal" method after exiting the game. I stress I didn't need to do that with the vice code I've used so hopefully it won't be the case. It'd be really great if the whole thing winds up completely seamless.

[SinisterSpatula]

@spud11 Yes it should be seamless, basically, you set the dpad mode once and leave it. Emulationstation will have it's inputs using that mode and so will all the Lr-cores (because they use what emulationstation uses). One thing that is doing my head in, and maybe you can help with, is.. I saw your --ui-axismap X1=KEY_A:KEY_D,Y1=KEY_S:KEY_W \ and that's exactly what I needed to start using the new d-pad mode. It works wonderfully! But now I'm wondering how do this for my more complex uses of the D-pad, like Duke Nukem 3D for example, where before I was able to do a modifier button + dpad to give it an alternate mapping. My old way using the other d-pad mode was to do this (looking at Duke mapping):

#Duke Nukem
if [ "$2" = "eduke32" ]
then
    sudo /opt/retropie/supplementary/xboxdrv/bin/xboxdrv \
    --evdev /dev/input/by-id/usb-RetroFlag_GPi_Case_RetroFlag_01-event-joystick \
    --detach-kernel-driver \
    --silent \
    --force-feedback \
    --deadzone-trigger 15% \
    --deadzone 4000 \
    --mimic-xpad \
    --dpad-as-button \
    --no-extra-events \
    --evdev-absmap ABS_X=x1,ABS_Y=y1,ABS_RX=x2,ABS_RY=y2,ABS_Z=lt,ABS_RZ=rt \
    --evdev-keymap BTN_SOUTH=a,BTN_EAST=b,BTN_NORTH=x,BTN_WEST=y,BTN_TL=lb,BTN_TR=rb,BTN_THUMBL=tl,BTN_THUMBR=tr,BTN_MODE=guide,BTN_SELECT=back,BTN_START=start,BTN_TRIGGER_HAPPY3=du,BTN_TRIGGER_HAPPY4=dd,BTN_TRIGGER_HAPPY1=dl,BTN_TRIGGER_HAPPY2=dr \
    --evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \
    --ui-buttonmap x=KEY_RIGHTCTRL,a=KEY_E,b=KEY_SPACE,y=KEY_LEFTSHIFT,lb=KEY_A,rb=KEY_D,a+lb=KEY_SEMICOLON,a+rb=KEY_APOSTROPHE,lb+rb=KEY_LEFTCTRL,rb+lb=KEY_LEFTCTRL \
    --ui-buttonmap start=KEY_ENTER+KEY_M,back=KEY_ESC,back+start=KEY_F10 \
    --ui-buttonmap du=KEY_UP+KEY_W,du+a=rel:REL_Y:-5:5,a+du=rel:REL_Y:-5:5,dd=KEY_DOWN+KEY_S,dd+a=rel:REL_Y:5:5,a+dd=rel:REL_Y:5:5,dl=KEY_LEFT,dr=KEY_RIGHT \
    --ui-buttonmap start+y=KEY_J,start+b=KEY_N,start+x=KEY_H,start+a=KEY_TAB \
&
fi

Any idea what that might look like with the new d-pad mode?

[SinisterSpatula]

By the way, du+a and a+du looks repetitive, but I actually found it works better, because this way it does not matter if the player pushed A first, or direction up first. Both ways get the "shifted output".

[SinisterSpatula]

Oh, I probably should mention also, regarding your "will it be seamless question", I don't leave xboxdrv running all the time. It's disabled in retropie setup, so it does not start on boot. I start it up during the runcommand-onstart, and I kill it during runcommand-onend. This way it does not conflict with emulation station, or lr-cores. You might have already guessed this, but just in case, I thought I should explain that.

[spud11]

@SinisterSpatula said in snes9x-rpi controls broken? Retroflag Gpi:

Oh, I probably should mention also, regarding your "will it be seamless question", I don't leave xboxdrv running all the time. It's disabled in retropie setup, so it does not start on boot. I start it up during the runcommand-onstart, and I kill it during runcommand-onend. This way it does not conflict with emulation station, or lr-cores. You might have already guessed this, but just in case, I thought I should explain that.

Yes, that is how I do things too. Thanks for confirming.

In relation to the modifier+dpad scenario and whether something similar can be done with axis mode, I'll think about that, but I'll need to do that after work, so it might be 6 or 7 hours before I get to it.

[SinisterSpatula]

No worries! :) I'm reading the holy bible of xboxdrv (https://xboxdrv.gitlab.io/xboxdrv.html) and it does look like axismap supports combo keys, so I think I'm in luck. I'll update here once I figure this out. :D

[spud11]

@SinisterSpatula That is very good. That's where I was going to head to as well this evening and also to this thread for ideas:
https://retropie.org.uk/forum/topic/2861/guide-advanced-controller-mappings

[SinisterSpatula]

@spud11 I got it!!! Yay! :D This works perfectly:

#Duke Nukem
if [ "$2" = "eduke32" ]
then
    sudo /opt/retropie/supplementary/xboxdrv/bin/xboxdrv \
    --evdev /dev/input/by-id/usb-RetroFlag_GPi_Case_RetroFlag_01-event-joystick \
    --detach-kernel-driver \
    --silent \
    --force-feedback \
    --deadzone-trigger 15% \
    --deadzone 4000 \
    --mimic-xpad \
    --dpad-as-button \
    --no-extra-events \
    --evdev-absmap ABS_X=x1,ABS_Y=y1,ABS_RX=x2,ABS_RY=y2,ABS_Z=lt,ABS_RZ=rt \
    --evdev-keymap BTN_SOUTH=a,BTN_EAST=b,BTN_NORTH=x,BTN_WEST=y,BTN_TL=lb,BTN_TR=rb,BTN_THUMBL=tl,BTN_THUMBR=tr,BTN_MODE=guide,BTN_SELECT=back,BTN_START=start,BTN_TRIGGER_HAPPY3=du,BTN_TRIGGER_HAPPY4=dd,BTN_TRIGGER_HAPPY1=dl,BTN_TRIGGER_HAPPY2=dr \
    --evdev-absmap ABS_X=dpad_x,ABS_Y=dpad_y \
    --ui-buttonmap x=KEY_RIGHTCTRL,a=KEY_E,b=KEY_SPACE,y=KEY_LEFTSHIFT,lb=KEY_A,rb=KEY_D,a+lb=KEY_SEMICOLON,a+rb=KEY_APOSTROPHE,lb+rb=KEY_LEFTCTRL,rb+lb=KEY_LEFTCTRL \
    --ui-buttonmap start=KEY_ENTER+KEY_M,back=KEY_ESC,back+start=KEY_F10 \
    --ui-buttonmap start+y=KEY_J,start+b=KEY_N,start+x=KEY_H,start+a=KEY_TAB \
    --ui-buttonmap du=KEY_UP+KEY_W,du+a=rel:REL_Y:-5:5,a+du=rel:REL_Y:-5:5,dd=KEY_DOWN+KEY_S,dd+a=rel:REL_Y:5:5,a+dd=rel:REL_Y:5:5,dl=KEY_LEFT,dr=KEY_RIGHT \
&
fi

[SinisterSpatula]

Now I'm wondering if it's better to do an axismap or if I should stick with this method (no axismap). I'm leaning toward no axismap because buttonmap seems to be more flexible, or allows more complexity. (or so it seems, I could be wrong)

[SinisterSpatula]

It turns out all I had to change was just one line. All of my mappings just needed this:

--evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \

Changed to

--evdev-absmap ABS_X=dpad_x,ABS_Y=dpad_y \

Literally the only change needed.

[spud11]

@SinisterSpatula Very well done.

Is it possible to combine the two? eg --dpad-as-button \ and --trigger-as-button \ plus, for example, --ui-axismap X1=KEY_A:KEY_D,Y1=KEY_S:KEY_W \ and --evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \ etc?

If not, my recollection is that mediamogul had figured out a way of having 2 separate configurations which can be switched via button press.

[spud11]

@SinisterSpatula Excellent. My last message crossed with your's.

[SinisterSpatula]

Hmmm, yes that is something to experiment with for sure. Like, if we wanted to try and support whatever mode the dpad button happened to be? I'm not too sure about that. I'm thinking while that would be cool, how much use would it really be. We don't want people constantly switching their d-pad mode. They really should "set it and forget it". So all my maps are going to be consistent and based on a certain mode. I guess, if it's just that one line that changes, it could be stored as a variable at the top of the file, and used in place of the line, depending on which mode they want it to be.

[spud11]

@SinisterSpatula You've probably tried this already, but could you have both --evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \ and --evdev-absmap ABS_X=dpad_x,ABS_Y=dpad_y \ in the one configuration? Does it conflict?

[SinisterSpatula]

@spud11 said in snes9x-rpi controls broken? Retroflag Gpi:

--evdev-absmap ABS_HAT0X=dpad_x,ABS_HAT0Y=dpad_y \

OMG! THAT WORKS. I did not try that, I didn't think that would work but it TOTALLY DOES! I can be in game, and switch my D-pad mode and it does not miss a beat. Holy cow. That's lifechanging lol