[Bf-blender-cvs] [7e4e8cca7dd] blender-v3.4-release: GHOST/Wayland: add wl_display_listener for debugging

[Campbell Barton]

Commit: 7e4e8cca7dd864b1a1d23ada6dd27c27de5535ac
Author: Campbell Barton
Date:   Thu Nov 10 11:12:52 2022 +1100
Branches: blender-v3.4-release
https://developer.blender.org/rB7e4e8cca7dd864b1a1d23ada6dd27c27de5535ac

GHOST/Wayland: add wl_display_listener for debugging

Currently only used for logging to help with debugging.

===================================================================

M	intern/ghost/intern/GHOST_SystemWayland.cpp

===================================================================

diff --git a/intern/ghost/intern/GHOST_SystemWayland.cpp b/intern/ghost/intern/GHOST_SystemWayland.cpp
index a2028de6f53..42da4a3ebbf 100644
--- a/intern/ghost/intern/GHOST_SystemWayland.cpp
+++ b/intern/ghost/intern/GHOST_SystemWayland.cpp
@@ -4984,6 +4984,42 @@ static const struct wl_registry_listener registry_listener = {
 
 /** \} */
 
+/* -------------------------------------------------------------------- */
+/** \name Listener (Display), #wl_display_listener
+ * \{ */
+
+static CLG_LogRef LOG_WL_DISPLAY = {"ghost.wl.handle.display"};
+#define LOG (&LOG_WL_DISPLAY)
+
+static void display_handle_error(
+    void *data, struct wl_display *wl_display, void *object_id, uint32_t code, const char *message)
+{
+  GWL_Display *display = static_cast<GWL_Display *>(data);
+  GHOST_ASSERT(display->wl_display == wl_display, "Invalid internal state");
+  (void)display;
+
+  /* NOTE: code is #wl_display_error, there isn't a convenient way to convert to an ID. */
+  CLOG_INFO(LOG, 2, "error (code=%u, object_id=%p, message=%s)", code, object_id, message);
+}
+
+static void display_handle_delete_id(void *data, struct wl_display *wl_display, uint32_t id)
+{
+  GWL_Display *display = static_cast<GWL_Display *>(data);
+  GHOST_ASSERT(display->wl_display == wl_display, "Invalid internal state");
+  (void)display;
+
+  CLOG_INFO(LOG, 2, "delete_id (id=%u)", id);
+}
+
+static const struct wl_display_listener display_listener = {
+    display_handle_error,
+    display_handle_delete_id,
+};
+
+#undef LOG
+
+/** \} */
+
 /* -------------------------------------------------------------------- */
 /** \name GHOST Implementation
  *
@@ -5006,6 +5042,8 @@ GHOST_SystemWayland::GHOST_SystemWayland(bool background)
   /* This may be removed later if decorations are required, needed as part of registration. */
   display_->xdg_decor = new GWL_XDG_Decor_System;
 
+  wl_display_add_listener(display_->wl_display, &display_listener, display_);
+
   /* Register interfaces. */
   {
     display_->registry_skip_update_all = true;