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Fix iNNEXT SNES Controller Input

See original GitHub issue

Summary

The iNNEXT SNES Controller only works partially in Duality / OpenTK. Investigate the cause and fix this.

How to reproduce

Connect the controller and run the input sample project. The issue should be apparent immediately.
Most key / axis mappings on the controller seem to be messed up, some of it stuck at -0.71f.

Workaround

The SDL2 backend seems to correctly map this input, so placing an SDL2.dll in the Duality folder fixes this in the launcher at least.
Comparison between SDL2 and OpenTK backend results. Note how SDL2 detects more axes than OpenTK:

Analysis

Investigate input mappings. They are up-to-date with the latest OpenTK version, but the SDL2 source seems to have a lot more of them.
Extend OpenTK and Duality API to retrieve more in-depth information on what’s happening. Expose controller GUIDs and mapping info in both logfiles and input sample.
Investigate the full diff for duality-master vs. the most recent develop and 4.0 to cherry-pick improvements and fixes. Look into changes in Input and Platform folders.
Investigate potential underlying bugs in OpenTK input handling that result in missing two axes.

Issue Analytics

State:
Created 5 years ago
Comments:19 (19 by maintainers)

Top GitHub Comments

1reaction

SirePicommented, Sep 24, 2018

Without SDL

PS4 DualShock 4 controller 03000000-4c05-0000-cc09-000000000000; PS4 Controller Right analog’s Y axis mapped as L2 trigger (mapped 0…1, 0.5 at rest) R2 trigger mapped as Right analog’s Y axis (mapped -1…1) L2 trigger is seen as R2 trigger

XBox 360 wired controller 78696e70-7574-0000-0000-000000000000; XInput Controller Working ok

With SDL 2.0.8 x64

PS4 DualShock 4 controller 03000000-4c05-0000-cc09-000000000000; PS4 Controller Working “ok” (see below)

XBox 360 wired controller 03000000-5e04-0000-8e02-000000007801; XInput Controller Working “ok” (see below)

In both cases, with SDL, the Left and Right triggers start at 0.5 - once pressed they report correctly from 0 in rest position to 1 fully pressed

0reactions

ilexpcommented, Oct 13, 2018

Progress

Opened a new issue in the OpenTK repo for discussing a potential manual merge of the previous fixes.
Opened a new issue for tackling the remaining PS4 controller problems.

Closing this.