From e5967bdc52a9e9c67b72f82809f2ded9844f29e8 Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf.pld@gmail.com>
Date: Fri, 6 Nov 2020 00:20:26 +0100
Subject: [PATCH] Fix context switch + samples offset logic.

---
 server/TracyView.cpp | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/server/TracyView.cpp b/server/TracyView.cpp
index 0c3d3059..0920b388 100644
--- a/server/TracyView.cpp
+++ b/server/TracyView.cpp
@@ -3004,9 +3004,12 @@ void View::DrawZones()
         if( showFull )
         {
             const auto sampleOffset = offset;
-            if( m_vd.drawSamples && !v->samples.empty() )
+            const auto hasSamples = m_vd.drawSamples && !v->samples.empty();
+            const auto hasCtxSwitch = m_vd.drawContextSwitches && m_worker.GetContextSwitchData( v->id );
+
+            if( hasSamples )
             {
-                if( m_vd.drawContextSwitches )
+                if( hasCtxSwitch )
                 {
                     offset += round( ostep * 0.5f );
                 }
@@ -3017,7 +3020,7 @@ void View::DrawZones()
             }
 
             const auto ctxOffset = offset;
-            if( m_vd.drawContextSwitches ) offset += round( ostep * 0.75f );
+            if( hasCtxSwitch ) offset += round( ostep * 0.75f );
 
             if( m_vd.drawZones )
             {
@@ -3034,7 +3037,7 @@ void View::DrawZones()
                 offset += ostep * depth;
             }
 
-            if( m_vd.drawContextSwitches )
+            if( hasCtxSwitch )
             {
                 auto ctxSwitch = m_worker.GetContextSwitchData( v->id );
                 if( ctxSwitch )
@@ -3043,7 +3046,7 @@ void View::DrawZones()
                 }
             }
 
-            if( m_vd.drawSamples && !v->samples.empty() )
+            if( hasSamples )
             {
                 DrawSamples( v->samples, hover, pxns, int64_t( nspx ), wpos, sampleOffset );
             }