From 4729c2be76b77160e92dc8c8c3e8a385358b2ad2 Mon Sep 17 00:00:00 2001
From: aliaspider <aliaspider@gmail.com>
Date: Sat, 8 Oct 2016 04:24:32 +0100
Subject: [PATCH] (3DS) font renderer: prevent calling DrawArray() with
 count==0.

---
 gfx/drivers_font/ctr_font.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gfx/drivers_font/ctr_font.c b/gfx/drivers_font/ctr_font.c
index 448a13dfd7..214ac0ad0b 100644
--- a/gfx/drivers_font/ctr_font.c
+++ b/gfx/drivers_font/ctr_font.c
@@ -228,6 +228,9 @@ static void ctr_font_render_line(
       delta_y += glyph->advance_y;
    }
 
+   if (v == ctr->vertex_cache.current)
+      return;
+
    ctrGuSetVertexShaderFloatUniform(0, (float*)&font->scale_vector, 1);
    GSPGPU_FlushDataCache(ctr->vertex_cache.current, (v - ctr->vertex_cache.current) * sizeof(ctr_vertex_t));
    ctrGuSetAttributeBuffers(2,