From f7d8b8dfc18e5cd83177622ec273287692fca907 Mon Sep 17 00:00:00 2001
From: Jacob Boerema <jgboerema@gmail.com>
Date: Thu, 16 Jan 2025 13:32:59 -0500
Subject: [PATCH] Issue #9135 saving of xcf to network drive is slow

In the above issue it was mentioned that using a buffered output stream
could improve performance.

This implements buffered saving for the xcf format.

For testing purposes there is timing code included for now.
---
 app/xcf/xcf.c | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/app/xcf/xcf.c b/app/xcf/xcf.c
index b5f6f2b896..663bcda374 100644
--- a/app/xcf/xcf.c
+++ b/app/xcf/xcf.c
@@ -448,6 +448,14 @@ xcf_load_invoker (GimpProcedure         *procedure,
   return return_vals;
 }
 
+#define GIMP_TIMER_START() \
+  { GTimer *_timer = g_timer_new ();
+
+#define GIMP_TIMER_END(message) \
+  g_printerr ("%s: %s took %0.4f seconds\n", \
+              G_STRFUNC, message, g_timer_elapsed (_timer, NULL)); \
+  g_timer_destroy (_timer); }
+
 static GimpValueArray *
 xcf_save_invoker (GimpProcedure         *procedure,
                   Gimp                  *gimp,
@@ -474,8 +482,24 @@ xcf_save_invoker (GimpProcedure         *procedure,
 
   if (output)
     {
-      success = xcf_save_stream (gimp, image, output, file, progress, error);
+      GOutputStream  *buffered = NULL;
 
+      buffered = g_buffered_output_stream_new (output);
+      if (buffered)
+        {
+          g_printerr ("Saving using buffered stream.\n");
+          GIMP_TIMER_START ();
+          success = xcf_save_stream (gimp, image, buffered, file, progress, error);
+          GIMP_TIMER_END ("Writing xcf save stream");
+          g_object_unref (buffered);
+        }
+      else
+        {
+          g_printerr ("Saving unbuffered stream.\n");
+          GIMP_TIMER_START ();
+          success = xcf_save_stream (gimp, image, output, file, progress, error);
+          GIMP_TIMER_END ("Writing xcf save stream");
+        }
       g_object_unref (output);
     }
   else