perf(DisplayDriverTFT): Throttle alert redraws to prevent tearing

2026-02-20 02:41:04 -08:00
parent ba8789797c
commit b68d36bb85
2 changed files with 11 additions and 1 deletions
--- a/boards/esp32-32e-4/DisplayDriverTFT.h
+++ b/boards/esp32-32e-4/DisplayDriverTFT.h
@@ -44,7 +44,9 @@ private:
    // Touch hint for alert - progressive fill from bottom
    bool _alertTouchDown = false;
    uint32_t _alertTouchStartMs = 0;
+    uint32_t _lastAlertDrawMs = 0;
    static constexpr uint32_t ALERT_FILL_DURATION_MS = 3000;
+    static constexpr uint32_t ALERT_DRAW_INTERVAL_MS = 333; // ~3fps

    // Touch tracking for press/release detection
    bool _touchWasPressed = false;