From d43044249c7643486c5a649f6626bde29de92a73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Konstantin=20Ka=CC=88fer?= <mail@kkaefer.com>
Date: Tue, 15 Apr 2014 18:45:51 -0400
Subject: [PATCH] make sure we always have a non-zero viewport

---
 src/renderer/painter.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/renderer/painter.cpp b/src/renderer/painter.cpp
index 18819a6bd..538a4ad9f 100644
--- a/src/renderer/painter.cpp
+++ b/src/renderer/painter.cpp
@@ -77,6 +77,7 @@ void Painter::setupShaders() {
 }
 
 void Painter::resize() {
+    assert(transform.getFramebufferWidth() > 0 && transform.getFramebufferHeight() > 0);
     glViewport(0, 0, transform.getFramebufferWidth(), transform.getFramebufferHeight());
 }