From 9d2f874b02929ecd3082120703901471a56b23ff Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Sun, 27 Oct 2024 11:58:23 +0100
Subject: [PATCH] Calculate flame graph begin times.

---
 profiler/src/profiler/TracyView_FlameGraph.cpp | 10 ++++++++++
 server/TracyEvent.hpp                          |  1 +
 2 files changed, 11 insertions(+)

diff --git a/profiler/src/profiler/TracyView_FlameGraph.cpp b/profiler/src/profiler/TracyView_FlameGraph.cpp
index e3aff9bc..5d9d890d 100644
--- a/profiler/src/profiler/TracyView_FlameGraph.cpp
+++ b/profiler/src/profiler/TracyView_FlameGraph.cpp
@@ -536,6 +536,15 @@ static void MergeFlameGraph( std::vector<FlameGraphItem>& dst, std::vector<Flame
     }
 }
 
+static void FixupTime( std::vector<FlameGraphItem>& data, uint64_t t = 0 )
+{
+    for( auto& v : data )
+    {
+        v.begin = t;
+        if( !v.children.empty() ) FixupTime( v.children, t );
+        t += v.time;
+    }
+}
 
 
 void View::DrawFlameGraph()
@@ -700,6 +709,7 @@ void View::DrawFlameGraph()
         }
 
         if( m_flameSort ) SortFlameGraph( m_flameGraphData );
+        FixupTime( m_flameGraphData );
     }
 
     int64_t zsz = 0;
diff --git a/server/TracyEvent.hpp b/server/TracyEvent.hpp
index 0f9020f4..73301fa1 100644
--- a/server/TracyEvent.hpp
+++ b/server/TracyEvent.hpp
@@ -850,6 +850,7 @@ struct FlameGraphItem
 {
     int64_t srcloc;
     int64_t time;
+    int64_t begin;
     std::vector<FlameGraphItem> children;
 };