feat: add dpi detection and configuration for mouse distance

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Implement automatic DPI detection from EDID display data and a manual `mouse_distance_dpi` config option to convert mouse movement pixels into real-world centimeters. The new `calculate_pixels_per_cm()` function in main.c falls back to manual DPI override, then EDID-based auto-detection with sanity checks, and finally a default 96 DPI (37.8 px/cm). The `Config` struct gains a `mouse_distance_dpi` field parsed from config files, and `DWNState` stores the computed `pixels_per_cm` and a `dpi_auto_detected` flag. The panel renderer now uses `dwn->pixels_per_cm` instead of the hardcoded 37.8 constant for mouse distance display.

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retoor

2026-01-28 15:55:00 +00:00

parent 2303b53c70

commit 5404adfcd5

17 changed files with 47 additions and 1 deletions

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