From e35fc400dd0c5ac89b4ab85c03657d59d9df577e Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Tue, 21 Apr 2015 21:00:18 +0200
Subject: [PATCH] Make sure to handle debugging 'invalid' indices

* Crash upload fix
* If a vertex is the strip restart index (displayed as "-1") or is
  reading out of bounds of the index buffer (displayed as "-") then we
  should still allow vertex debugging to go ahead, as if the index were
  just 0.
---
 renderdocui/Windows/BufferViewer.cs | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/renderdocui/Windows/BufferViewer.cs b/renderdocui/Windows/BufferViewer.cs
index 2c390283e..cad30ed4a 100644
--- a/renderdocui/Windows/BufferViewer.cs
+++ b/renderdocui/Windows/BufferViewer.cs
@@ -2840,7 +2840,12 @@ namespace renderdocui.Windows
 
             if (row >= ui.m_Rows.Length || ui.m_Rows[row].Length <= 1) return;
 
-            UInt32 idx = (UInt32)ui.m_Rows[row][1];
+            UInt32 idx = 0;
+
+            if (ui.m_Rows[row][1] is UInt32)
+            {
+                idx = (UInt32)ui.m_Rows[row][1];
+            }
 
             var draw = m_Core.CurDrawcall;