From e1d025e4ef3b9e7d84d4afd3506296252dc844c0 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Fri, 2 Oct 2020 12:53:38 +0100
Subject: [PATCH] Don't fetch buffer data if it's not yet initialised

---
 qrenderdoc/Windows/BufferViewer.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/qrenderdoc/Windows/BufferViewer.cpp b/qrenderdoc/Windows/BufferViewer.cpp
index 7718bea98..1396cfa4c 100644
--- a/qrenderdoc/Windows/BufferViewer.cpp
+++ b/qrenderdoc/Windows/BufferViewer.cpp
@@ -2563,7 +2563,8 @@ void BufferViewer::OnEventChanged(uint32_t eventId)
       uint64_t unclampedLen = m_ByteSize;
       if(unclampedLen == UINT64_MAX)
       {
-        uint64_t bufLen = m_IsBuffer ? m_Ctx.GetBuffer(m_BufferID)->length : 0;
+        uint64_t bufLen =
+            m_IsBuffer && m_BufferID != ResourceId() ? m_Ctx.GetBuffer(m_BufferID)->length : 0;
         uint64_t bufOffs = m_ByteOffset;
 
         if(bufOffs >= bufLen)