From bed42454d3b737ba0d0658a790c12b19e3f27e82 Mon Sep 17 00:00:00 2001
From: Ivan Molodetskikh <yalterz@gmail.com>
Date: Thu, 23 Nov 2023 08:14:42 +0400
Subject: [PATCH] cogl/trace: Make COGL_TRACE_DESCRIBE append

Sometimes it's useful to combine the description from multiple places.
For example, a subsequent commit will add the output name as the first
thing to the frame clock span descriptions, leaving the rest of the
description with complex checks unchanged.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3417>
---
 cogl/cogl/cogl-trace.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/cogl/cogl/cogl-trace.c b/cogl/cogl/cogl-trace.c
index f0dbe98c6..cc724c984 100644
--- a/cogl/cogl/cogl-trace.c
+++ b/cogl/cogl/cogl-trace.c
@@ -342,7 +342,15 @@ void
 cogl_trace_describe (CoglTraceHead *head,
                      const char    *description)
 {
-  head->description = g_strdup (description);
+  if (head->description)
+    {
+      char *old_description = head->description;
+      head->description =
+        g_strdup_printf ("%s, %s", old_description, description);
+      g_free (old_description);
+    }
+  else
+    head->description = g_strdup (description);
 }
 
 #else