Remove G.relbase_valid

In almost all cases there is no difference between `G.relbase_valid`
and checking `G.main->filepath` isn't an empty string.

In many places a non-empty string is already being used instead of
`G.relbase_valid`.

The only situation where this was needed was when saving from
`wm_file_write` where they temporarily became out of sync.
This has been replaced by adding a new member to `BlendFileWriteParams`
to account for saving an unsaved file for the first time.

Reviewed By: brecht

Ref D13564

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/blenkernel/intern/image.c b/source/blender/blenkernel/intern/image.c
index cc6854d2f2e..f43cf00a310 100644
--- a/source/blender/blenkernel/intern/image.c
+++ b/source/blender/blenkernel/intern/image.c
@@ -2062,9 +2062,10 @@ static void stampdata(
   time_t t;
 
   if (scene->r.stamp & R_STAMP_FILENAME) {
+    const char *blendfile_path = BKE_main_blendfile_path_from_global();
     SNPRINTF(stamp_data->file,
              do_prefix ? "File %s" : "%s",
-             G.relbase_valid ? BKE_main_blendfile_path_from_global() : "<untitled>");
+             (blendfile_path[0] != '\0') ? blendfile_path : "<untitled>");
   }
   else {
     stamp_data->file[0] = '\0';