Fix T73763: Laggy with nodes Editor + International Fonts

Two main reasons for the lag:
- Allocation of memory with transfer to GPU.
- BLF_cache_clear();

The memory allocation seems to be unnecessary, so I removed it.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D6837

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/editors/interface/view2d.c b/source/blender/editors/interface/view2d.c
index 517d8ca51a3..3ee4d6a085e 100644
--- a/source/blender/editors/interface/view2d.c
+++ b/source/blender/editors/interface/view2d.c
@@ -1123,7 +1123,8 @@ void UI_view2d_zoom_cache_reset(void)
   /* While scaling we can accumulate fonts at many sizes (~20 or so).
    * Not an issue with embedded font, but can use over 500Mb with i18n ones! See [#38244]. */
 
-  /* note: only some views draw text, we could check for this case to avoid clearning cache */
+  /* note: This can be very bad for performance.
+   *       Only some views draw text, we could check for this case to avoid clearning cache. */
   BLF_cache_clear();
 }