Rewind, Fast-Forward, Internal Color Palette

[OrcLex]

Hello,

I need some help to get REWIND to work.
I have a GPI CASE 2W with a Raspberry Pi Zero 2W and yes, I have read https://retropie.org.uk/forum/topic/7053/binding-fast-foward-and-rewind-to-a-controller/2
The default emulator is lr-gambatte.

I would like to map REWIND to the left shoulder button and FAST FORWARD to the right one.

The config file for the buttons contains:
/opt/retropie/configs/all/retroarch/autoconfig/Microsoft X-Box 360 pad.cfg

input_device = "Microsoft X-Box 360 pad"
input_driver = "udev"
input_enable_hotkey_btn = "8"
input_l_btn = "4"
input_l_btn_label = "L1"
input_load_state_btn = "4"
input_up_axis = "-1"
input_left_axis = "-0"
input_state_slot_decrease_axis = "-0"
input_select_btn = "8"
input_select_btn_label = "Select"
input_right_axis = "+0"
input_state_slot_increase_axis = "+0"
input_r_btn = "5"
input_r_btn_label = "R1"
input_save_state_btn = "5"
input_y_btn = "3"
input_y_btn_label = "Square"
input_x_btn = "2"
input_menu_toggle_btn = "2"
input_down_axis = "+1"
input_start_btn = "9"
input_start_btn_label = "Start"
input_exit_emulator_btn = "9"
input_b_btn = "1"
input_reset_btn = "1"
input_a_btn = "0"

I changed the following lines in /opt/retropie/configs/gb/retroarch.cfg:

#input_rewind = "nul"
input_rewind = "4"
input_rewind_btn = "4"
rewind_enable = "true"
#input_hold_fast_forward = "nul"
input_hold_fast_forward = "5"

Fast-forward is working in the game using the right shoulder button, but it also changes the internal color palette. The left shoulder button for Rewind changes the internal color palette to the previous one.
How can I completely disable changing the internal color palettes with the shoulder buttons and why is rewind not working? It is enabled in the UI!

Thanks!

[mitu]

@OrcLex said in Rewind, Fast-Forward, Internal Color Palette:

How can I completely disable changing the internal color palettes with the shoulder buttons and why is rewind not working? It is enabled in the UI!

I'm not sure whether gambatte allows disabling the palette switch, but you can look up in the core options to see if it does.

As for the rewind - since the hotkey_enable_btn is configured, you need to press both buttons in order for the binding to work. But do note that RetroPie configured Hotkey enable + L/R for load/save state, so that might not work the way you want (i.e. rewind/fast forward). Either choose different bindings for the actions or remove the save/load bindings from the controller profile.

[OrcLex]

@mitu

Great, I could disable changing the internal color palette in /opt/retropie/configs/gb/Gambatte/Gambatte.rmp:

input_player1_btn_l = "-1"
input_player1_btn_r = "-1"

and put fast forward to the right shoulder button with

input_hold_fast_forward = "5"

I also added

input_rewind_btn = "10"

to map rewind to the Retroflag button from the gpi case 2W and

input_toggle_fast_forward_btn = "3"

to toggle fast forward with SELECT+Y.