From c793e1f35d32bad0da454008f3c8b9b19fb1d95a Mon Sep 17 00:00:00 2001
From: Luke Benstead <kazade@gmail.com>
Date: Wed, 24 Aug 2022 20:31:55 +0100
Subject: [PATCH] Don't submit empty lists

---
 GL/flush.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/GL/flush.c b/GL/flush.c
index 31f311e..d443c06 100644
--- a/GL/flush.c
+++ b/GL/flush.c
@@ -92,17 +92,23 @@ void APIENTRY glKosSwapBuffers() {
     TRACE();
 
     SceneBegin();
-        SceneListBegin(GPU_LIST_OP_POLY);
-        SceneListSubmit(OP_LIST.vector.data, OP_LIST.vector.size);
-        SceneListFinish();
+        if(OP_LIST.vector.size > 2) {
+            SceneListBegin(GPU_LIST_OP_POLY);
+            SceneListSubmit(OP_LIST.vector.data, OP_LIST.vector.size);
+            SceneListFinish();
+        }
 
-        SceneListBegin(GPU_LIST_PT_POLY);
-        SceneListSubmit(PT_LIST.vector.data, PT_LIST.vector.size);
-        SceneListFinish();
+        if(PT_LIST.vector.size > 2) {
+            SceneListBegin(GPU_LIST_PT_POLY);
+            SceneListSubmit(PT_LIST.vector.data, PT_LIST.vector.size);
+            SceneListFinish();
+        }
 
-        SceneListBegin(GPU_LIST_TR_POLY);
-        SceneListSubmit(TR_LIST.vector.data, TR_LIST.vector.size);
-        SceneListFinish();
+        if(TR_LIST.vector.size > 2) {
+            SceneListBegin(GPU_LIST_TR_POLY);
+            SceneListSubmit(TR_LIST.vector.data, TR_LIST.vector.size);
+            SceneListFinish();
+        }
     SceneFinish();
 
     aligned_vector_clear(&OP_LIST.vector);