smoother mouse movement code

Ardakilic · Sep 10, 2024 · bb817f2 · bb817f2
1 parent c68ae6c
commit bb817f2
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Showing 2 changed files with 74 additions and 1 deletion.
diff --git a/keyboards/horizon/keymaps/default_trackball/config.h b/keyboards/horizon/keymaps/default_trackball/config.h
@@ -32,4 +32,32 @@
 
 // Enable if you want to 
 // #define PIMORONI_TRACKBALL_INVERT_X
-// #define PIMORONI_TRACKBALL_INVERT_Y
+// #define PIMORONI_TRACKBALL_INVERT_Y
+// #define POINTING_DEVICE_ROTATION_90
+// #define SPLIT_POINTING_ENABLE
+// #define POINTING_DEVICE_RIGHT
+
+// trackball smoothing start
+// https://github.com/qmk/qmk_firmware/blob/master/keyboards/sofle/keymaps/foureight84/config.h
+// #define POINTING_DEVICE_TASK_THROTTLE_MS 8
+// Trackball smoothing
+
+
+/* 
+
+https://www.reddit.com/r/ErgoMechKeyboards/comments/qx7oqg/how_do_you_get_smoother_mouse_keys_with_qmkvia/
+https://github.com/manna-harbour/miryoku_qmk/blob/bdb9fd81e8aa2afb3882f7c0f6ae2d3ba448ac93/users/manna-harbour_miryoku/config.h#L23-L33
+
+// Mouse key speed and acceleration.
+#undef MOUSEKEY_DELAY
+#define MOUSEKEY_DELAY          0
+#undef MOUSEKEY_INTERVAL
+#define MOUSEKEY_INTERVAL       16
+#undef MOUSEKEY_WHEEL_DELAY
+#define MOUSEKEY_WHEEL_DELAY    0
+#undef MOUSEKEY_MAX_SPEED
+#define MOUSEKEY_MAX_SPEED      6
+#undef MOUSEKEY_TIME_TO_MAX
+#define MOUSEKEY_TIME_TO_MAX    64
+
+*/
diff --git a/keyboards/horizon/keymaps/default_trackball/keymap.c b/keyboards/horizon/keymaps/default_trackball/keymap.c
@@ -55,6 +55,51 @@ void trackball_register_button(bool pressed, enum mouse_buttons button){
 }
 #endif
 
+// Smooth mouse scroll movement START
+// https://github.com/qmk/qmk_firmware/blob/master/keyboards/sofle/keymaps/foureight84/keymap.c
+static uint32_t       last_mouse_activity = 0;
+static report_mouse_t last_mouse_report   = {0};
+static bool           is_scrolling        = false;
+
+report_mouse_t smooth_mouse_movement(report_mouse_t mouse_report) {
+    // Linear interpolation and ease-in-out
+    static fract8 fract = 0.5;
+    int8_t        x     = 0;
+    int8_t        y     = 0;
+    int8_t        h     = 0;
+    int8_t        v     = 0;
+
+    if (!is_scrolling) {
+        x = ease8InOutApprox(lerp8by8(last_mouse_report.x, mouse_report.x, fract));
+        y = ease8InOutApprox(lerp8by8(last_mouse_report.y, mouse_report.y, fract));
+    } else {
+        h = ease8InOutApprox(lerp8by8(last_mouse_report.x, mouse_report.x, fract));
+        v = ease8InOutApprox(lerp8by8(last_mouse_report.y, mouse_report.y, fract));
+    }
+
+    // update the new smoothed report
+    mouse_report.x = x;
+    mouse_report.y = y;
+    mouse_report.h = h;
+    mouse_report.v = v;
+
+    return mouse_report;
+}
+
+report_mouse_t pointing_device_task_user(report_mouse_t mouse_report) {
+
+    if (has_mouse_report_changed(&last_mouse_report, &mouse_report)) {
+        last_mouse_activity = timer_read32();
+        memcpy(&last_mouse_report, &mouse_report, sizeof(mouse_report));
+    }
+
+    return smooth_mouse_movement(mouse_report);
+}
+// Smooth mousescroll  movement END
+
+
+// LAYERS
+
 enum layer_names {
     _BASE,
     _SYMBOL,