From 2711af39e58889b1903f45b2e98b8c0bb0705510 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Sun, 4 Sep 2022 13:16:26 +0200
Subject: [PATCH] Check if zoom range is valid.

This is important for GPU zones, which may have broken timing data.
---
 server/TracyTimelineItem.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/server/TracyTimelineItem.cpp b/server/TracyTimelineItem.cpp
index 6b69021e..4ab65270 100644
--- a/server/TracyTimelineItem.cpp
+++ b/server/TracyTimelineItem.cpp
@@ -91,7 +91,12 @@ void TimelineItem::Draw( bool firstFrame, double pxns, int& offset, const ImVec2
             }
             if( IsMouseClicked( 2 ) )
             {
-                m_view.ZoomToRange( RangeBegin(), RangeEnd() );
+                const auto t0 = RangeBegin();
+                const auto t1 = RangeEnd();
+                if( t0 < t1 )
+                {
+                    m_view.ZoomToRange( t0, t1 );
+                }
             }
             if( IsMouseClicked( 1 ) )
             {