[Feature request]: [Swan.emu]Please add mednafen "gamepadraa - Gamepad(Rotation Auto-Adjust)"

[leoxxx]

Describe the feature

Direction	Landscape	Portrait
↑	X 1	Y 2
→	X 2	Y 3
↓	X 3	Y 4
←	X 4	Y 1
↑	Y 1	A (right)
→	Y 2	B (center, lower)
↓	Y 3	B (left)
←	Y 4	A (center, upper)
↑	A (center, upper)	X 2
→	A (right)	X 3
↓	B (center, lower)	X 4
←	B (left)	X 1

It's the mednafen "gamepadraa - Gamepad(Rotation Auto-Adjust)" key mapping. Direction X is the same mapping as the Swan.emu's one. Direction Y map to A & B, A & B map to direction X. I think it's better than Swan.emu's key mapping.

I imagine an enhanced key mapping base on mednafen and Swan.emu's one.

Direction	Landscape	Portrait
↑	X 1	Y 2
→	X 2	Y 3
↓	X 3	Y 4
←	X 4	Y 1
↑	Y 1	A
→	Y 2	B
↓	Y 3	Turbo B
←	Y 4	Turbo A
↑	Turbo A	X 2
→	A	X 3
↓	B	X 4
←	Turbo B	X 1

I don't know why doesn't mednafen add turbo keys for gamepadraa and whether you can do it. If you can do it, the key mapping will need only one.

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