+/**
+ * Try to merge / concatenate the two most recent VBO primitives.
+ */
+static void
+try_vbo_merge(struct vbo_exec_context *exec)
+{
+ struct _mesa_prim *cur = &exec->vtx.prim[exec->vtx.prim_count - 1];
+
+ assert(exec->vtx.prim_count >= 1);
+
+ vbo_try_prim_conversion(cur);
+
+ if (exec->vtx.prim_count >= 2) {
+ struct _mesa_prim *prev = &exec->vtx.prim[exec->vtx.prim_count - 2];
+ assert(prev == cur - 1);
+
+ if (vbo_can_merge_prims(prev, cur)) {
+ assert(cur->begin);
+ assert(cur->end);
+ assert(prev->begin);
+ assert(prev->end);
+ vbo_merge_prims(prev, cur);
+ exec->vtx.prim_count--; /* drop the last primitive */
+ }
+ }
+}
+
+