Implement pen and touch support for Windows

src/platform/linux/input.cpp

@@ -1489,7 +1489,7 @@ namespace platf {
 
   /**
    * @brief Creates a new virtual gamepad.
-   * @param input The input context.
+   * @param input The global input context.
    * @param id The gamepad ID.
    * @param metadata Controller metadata from client (empty if none provided).
    * @param feedback_queue The queue for posting messages back to the client.
@@ -1567,9 +1567,42 @@ namespace platf {
     libevdev_uinput_write_event(uinput.get(), EV_SYN, SYN_REPORT, 0);
   }
 
+  /**
+   * @brief Allocates a context to store per-client input data.
+   * @param input The global input context.
+   * @return A unique pointer to a per-client input data context.
+   */
+  std::unique_ptr<client_input_t>
+  allocate_client_input_context(input_t &input) {
+    // Unused
+    return nullptr;
+  }
+
+  /**
+   * @brief Sends a touch event to the OS.
+   * @param input The client-specific input context.
+   * @param touch_port The current viewport for translating to screen coordinates.
+   * @param touch The touch event.
+   */
+  void
+  touch(client_input_t *input, const touch_port_t &touch_port, const touch_input_t &touch) {
+    // Unimplemented feature - platform_caps::pen_touch
+  }
+
+  /**
+   * @brief Sends a pen event to the OS.
+   * @param input The client-specific input context.
+   * @param touch_port The current viewport for translating to screen coordinates.
+   * @param pen The pen event.
+   */
+  void
+  pen(client_input_t *input, const touch_port_t &touch_port, const pen_input_t &pen) {
+    // Unimplemented feature - platform_caps::pen_touch
+  }
+
   /**
    * @brief Sends a gamepad touch event to the OS.
-   * @param input The input context.
+   * @param input The global input context.
    * @param touch The touch event.
    */
   void
@@ -1579,7 +1612,7 @@ namespace platf {
 
   /**
    * @brief Sends a gamepad motion event to the OS.
-   * @param input The input context.
+   * @param input The global input context.
    * @param motion The motion event.
    */
   void
@@ -1589,7 +1622,7 @@ namespace platf {
 
   /**
    * @brief Sends a gamepad battery event to the OS.
-   * @param input The input context.
+   * @param input The global input context.
    * @param battery The battery event.
    */
   void