From 35de0993d28f58739daeed62111b0c1cedc33325 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Sun, 31 Oct 2021 13:18:32 +0300
Subject: [PATCH] Support getting current vsync status in app

---
 libs/app/include/psemek/app/app.hpp | 1 +
 libs/app/source/app.cpp             | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/libs/app/include/psemek/app/app.hpp b/libs/app/include/psemek/app/app.hpp
index 6fb395d0..c975e3bc 100644
--- a/libs/app/include/psemek/app/app.hpp
+++ b/libs/app/include/psemek/app/app.hpp
@@ -41,6 +41,7 @@ namespace psemek::app
 		std::unique_ptr<scene> pop_scene() override;
 
 		void show_cursor(bool show);
+		bool vsync() const;
 		void vsync(bool on);
 
 		float time() const;
diff --git a/libs/app/source/app.cpp b/libs/app/source/app.cpp
index 1f979e45..753a0ee9 100644
--- a/libs/app/source/app.cpp
+++ b/libs/app/source/app.cpp
@@ -274,6 +274,11 @@ namespace psemek::app
 		return std::chrono::duration_cast<std::chrono::duration<float>>(clock::now() - impl().start_time).count();
 	}
 
+	bool app::vsync() const
+	{
+		return SDL_GL_GetSwapInterval() != 0;
+	}
+
 	void app::vsync(bool on)
 	{
 		if (on)