From 466900e579c48fe8dc59baca138f0a7c64c74dda Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Sat, 28 Nov 2020 08:24:40 +1100
Subject: [PATCH] renderer: mutex around color context creation/retrieval

---
 app/render/renderer.cpp | 2 ++
 app/render/renderer.h   | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/app/render/renderer.cpp b/app/render/renderer.cpp
index a5af30d84..f33dd3a7d 100644
--- a/app/render/renderer.cpp
+++ b/app/render/renderer.cpp
@@ -75,6 +75,8 @@ void Renderer::Destroy()
 
 bool Renderer::GetColorContext(ColorProcessorPtr color_processor, Renderer::ColorContext *ctx)
 {
+  QMutexLocker locker(&color_cache_mutex_);
+
   ColorContext& color_ctx = *ctx;
 
   if (color_cache_.contains(color_processor->id())) {
diff --git a/app/render/renderer.h b/app/render/renderer.h
index 724c76b22..b75a1e0bc 100644
--- a/app/render/renderer.h
+++ b/app/render/renderer.h
@@ -125,6 +125,8 @@ private:
 
   QHash<QString, ColorContext> color_cache_;
 
+  QMutex color_cache_mutex_;
+
 };
 
 }