UI: Fix waveform widget text drawing.

Flush the text cache so that we have proper scissor test and ordering.

2 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenfont/BLF_api.h b/source/blender/blenfont/BLF_api.h
index 3466f1665c6..668588435b4 100644
--- a/source/blender/blenfont/BLF_api.h
+++ b/source/blender/blenfont/BLF_api.h
@@ -98,6 +98,7 @@ void BLF_matrix(int fontid, const float m[16]);
 /* Batch drawcalls together as long as
  * the modelview matrix and the font remain unchanged. */
 void BLF_batch_draw_begin(void);
+void BLF_batch_draw_flush(void);
 void BLF_batch_draw_end(void);
 
 /* Draw the string using the default font, size and dpi. */
diff --git a/source/blender/blenfont/intern/blf.c b/source/blender/blenfont/intern/blf.c
index b94c6e35823..fafee125264 100644
--- a/source/blender/blenfont/intern/blf.c
+++ b/source/blender/blenfont/intern/blf.c
@@ -548,6 +548,13 @@ void BLF_batch_draw_begin(void)
 	g_batch.enabled = true;
 }
 
+void BLF_batch_draw_flush(void)
+{
+	if (g_batch.enabled) {
+		blf_batch_draw();
+	}
+}
+
 void BLF_batch_draw_end(void)
 {
 	BLI_assert(g_batch.enabled == true);