From fbf065645da9b01af61248970610e0ecee32b7dd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Sun, 22 Mar 2015 17:54:16 +0100
Subject: [PATCH] Don't use zero-sized viewport as disengaged state.

Zero-sized viewport is perfectly valid state and it causes assertion
failures on contexts without default framebuffer (e.g.
WindowlessCglApplication).
---
 src/Magnum/Implementation/FramebufferState.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Magnum/Implementation/FramebufferState.h b/src/Magnum/Implementation/FramebufferState.h
index 745e88a25..4bd383c53 100644
--- a/src/Magnum/Implementation/FramebufferState.h
+++ b/src/Magnum/Implementation/FramebufferState.h
@@ -33,7 +33,7 @@
 namespace Magnum { namespace Implementation {
 
 struct FramebufferState {
-    constexpr static const Range2Di DisengagedViewport{};
+    constexpr static const Range2Di DisengagedViewport{{}, {-1, -1}};
 
     explicit FramebufferState(Context& context, std::vector<std::string>& extensions);