[core] Fix relative mouse mode for PLATFORM_DRM

[ghost]

Changes

1. Fixes the issue causing the PLATFORM_DRM examples with 3D cameras (e.g.: models_first_person_maze, core_3d_camera_free, etc) moving uncontrollably, by adding more handling for the relative mouse mode (R124, R404, R414, R528-R533, R1548-R1557, R1565-R1574), similar to how it was done for PLATFORM_DESKTOP_SDL.

Notes

I understand the input system is getting reworked for PLATFORM_DRM. Just submitting this to not leave the relative mouse movement broken for the examples and the future 5.0 release in the meantime.

Reference

#3487

Environment

Tested on Raspberry Pi 3 Model B 1.2 with Linux (Raspberry Pi OS 11 Bullseye 32-bit armhf).

Edits

1: added line marks; editing.

[raysan5]

I understand the input system is getting reworked for PLATFORM_DRM. Just submitting this to not leave the relative mouse movement broken for the examples and the future 5.0 release in the meantime.

@ubkp Sure! That's the priority at the moment! Not sure if the new input system will be ready by mid-November (@michaelfiber), in any case it's good to have it working as is now.

[raysan5]

I understand the input system is getting reworked for PLATFORM_DRM. Just submitting this to not leave the relative mouse movement broken for the examples and the future 5.0 release in the meantime.

@ubkp Sure! That's the priority at the moment! Not sure if the new input system will be ready by mid-November (@michaelfiber), in any case it's good to have it working as is now.