From 761efbb4571397fe9e5f19049ca64663e12cbc1e Mon Sep 17 00:00:00 2001
From: Patric Stout <truebrain@openttd.org>
Date: Sat, 20 Feb 2021 10:49:27 +0100
Subject: Codechange: use (Un)LockVideoBuffer() to manage video buffer

---
 src/video/sdl_v.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/video/sdl_v.h')

diff --git a/src/video/sdl_v.h b/src/video/sdl_v.h
index 1d3da9b6a..896a6f5b8 100644
--- a/src/video/sdl_v.h
+++ b/src/video/sdl_v.h
@@ -39,8 +39,12 @@ public:
 
 protected:
 	void InputLoop() override;
+	bool LockVideoBuffer() override;
+	void UnlockVideoBuffer() override;
 
 private:
+	std::unique_lock<std::recursive_mutex> draw_lock;
+
 	int PollEvent();
 	bool CreateMainSurface(uint w, uint h);
 	void SetupKeyboard();
-- 
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