From b977a151874fb97742e61b60cba494766a4ec697 Mon Sep 17 00:00:00 2001
From: Joe Wilm <joe@jwilm.com>
Date: Mon, 6 Jun 2016 13:29:05 -0700
Subject: Batching flushes on texture change

This fixes a bug when multiple atlases are required.
---
 src/renderer/mod.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/renderer/mod.rs b/src/renderer/mod.rs
index ff2963f7..379e22ee 100644
--- a/src/renderer/mod.rs
+++ b/src/renderer/mod.rs
@@ -184,7 +184,7 @@ impl Batch {
 
 /// Maximum items to be drawn in a batch.
 const BATCH_MAX: usize = 4096;
-const ATLAS_SIZE: i32 = 512;
+const ATLAS_SIZE: i32 = 1024;
 
 impl QuadRenderer {
     // TODO should probably hand this a transform instead of width/height
@@ -481,6 +481,13 @@ impl<'a> RenderApi<'a> {
 
     #[inline]
     fn add_render_item(&mut self, row: f32, col: f32, color: Rgb, glyph: &Glyph) {
+        // Flush batch if tex changing
+        if !self.batch.is_empty() {
+            if self.batch.tex != glyph.tex_id {
+                self.render_batch();
+            }
+        }
+
         self.batch.add_item(row, col, color, glyph);
 
         // Render batch and clear if it's full
-- 
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