3 files changed, 40 insertions, 43 deletions

diff --git a/platform/windows/display_server_windows.cpp b/platform/windows/display_server_windows.cpp
index af80a07da9..0b878feb7f 100644
--- a/platform/windows/display_server_windows.cpp
+++ b/platform/windows/display_server_windows.cpp
@@ -2023,6 +2023,12 @@ void DisplayServerWindows::window_set_vsync_mode(DisplayServer::VSyncMode p_vsyn
 		context_vulkan->set_vsync_mode(p_window, p_vsync_mode);
 	}
 #endif
+
+#if defined(GLES3_ENABLED)
+	if (gl_manager) {
+		gl_manager->set_use_vsync(p_window, p_vsync_mode != DisplayServer::VSYNC_DISABLED);
+	}
+#endif
 }
 
 DisplayServer::VSyncMode DisplayServerWindows::window_get_vsync_mode(WindowID p_window) const {
@@ -2032,6 +2038,13 @@ DisplayServer::VSyncMode DisplayServerWindows::window_get_vsync_mode(WindowID p_
 		return context_vulkan->get_vsync_mode(p_window);
 	}
 #endif
+
+#if defined(GLES3_ENABLED)
+	if (gl_manager) {
+		return gl_manager->is_using_vsync(p_window) ? DisplayServer::VSYNC_ENABLED : DisplayServer::VSYNC_DISABLED;
+	}
+#endif
+
 	return DisplayServer::VSYNC_ENABLED;
 }
 
@@ -3601,6 +3614,7 @@ DisplayServer::WindowID DisplayServerWindows::_create_window(WindowMode p_mode,
 				windows.erase(id);
 				ERR_FAIL_V_MSG(INVALID_WINDOW_ID, "Failed to create an OpenGL window.");
 			}
+			window_set_vsync_mode(p_vsync_mode, id);
 		}
 #endif
 
diff --git a/platform/windows/gl_manager_windows.cpp b/platform/windows/gl_manager_windows.cpp
index 900bca8258..5b39c56ea3 100644
--- a/platform/windows/gl_manager_windows.cpp
+++ b/platform/windows/gl_manager_windows.cpp
@@ -185,6 +185,10 @@ Error GLManager_Windows::_create_context(GLWindow &win, GLDisplay &gl_display) {
 		return ERR_CANT_CREATE;
 	}
 
+	if (!wglSwapIntervalEXT) {
+		wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
+	}
+
 	return OK;
 }
 
@@ -293,50 +297,30 @@ void GLManager_Windows::swap_buffers() {
 }
 
 Error GLManager_Windows::initialize() {
-	wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
-	wglGetSwapIntervalEXT = (PFNWGLGETSWAPINTERVALEXTPROC)wglGetProcAddress("wglGetSwapIntervalEXT");
-	//glWrapperInit(wrapper_get_proc_address);
-
 	return OK;
 }
 
-void GLManager_Windows::set_use_vsync(bool p_use) {
-	/*
-	static bool setup = false;
-	static PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT = nullptr;
-	static PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalMESA = nullptr;
-	static PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI = nullptr;
-
-	if (!setup) {
-		setup = true;
-		String extensions = glXQueryExtensionsString(x11_display, DefaultScreen(x11_display));
-		if (extensions.find("GLX_EXT_swap_control") != -1) {
-			glXSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalEXT");
-		}
-		if (extensions.find("GLX_MESA_swap_control") != -1) {
-			glXSwapIntervalMESA = (PFNGLXSWAPINTERVALSGIPROC)glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalMESA");
-		}
-		if (extensions.find("GLX_SGI_swap_control") != -1) {
-			glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalSGI");
-		}
+void GLManager_Windows::set_use_vsync(DisplayServer::WindowID p_window_id, bool p_use) {
+	GLWindow &win = get_window(p_window_id);
+	GLWindow *current = _current_window;
+
+	if (&win != _current_window) {
+		window_make_current(p_window_id);
 	}
-	int val = p_use ? 1 : 0;
-	if (glXSwapIntervalMESA) {
-		glXSwapIntervalMESA(val);
-	} else if (glXSwapIntervalSGI) {
-		glXSwapIntervalSGI(val);
-	} else if (glXSwapIntervalEXT) {
-		GLXDrawable drawable = glXGetCurrentDrawable();
-		glXSwapIntervalEXT(x11_display, drawable, val);
-	} else {
-		return;
+
+	if (wglSwapIntervalEXT) {
+		win.use_vsync = p_use;
+		wglSwapIntervalEXT(p_use ? 1 : 0);
+	}
+
+	if (current != _current_window) {
+		_current_window = current;
+		make_current();
 	}
-	use_vsync = p_use;
-	*/
 }
 
-bool GLManager_Windows::is_using_vsync() const {
-	return use_vsync;
+bool GLManager_Windows::is_using_vsync(DisplayServer::WindowID p_window_id) const {
+	return get_window(p_window_id).use_vsync;
 }
 
 HDC GLManager_Windows::get_hdc(DisplayServer::WindowID p_window_id) {
@@ -354,7 +338,6 @@ GLManager_Windows::GLManager_Windows(ContextType p_context_type) {
 
 	direct_render = false;
 	glx_minor = glx_major = 0;
-	use_vsync = false;
 	_current_window = nullptr;
 }
 
diff --git a/platform/windows/gl_manager_windows.h b/platform/windows/gl_manager_windows.h
index c6d5f9f855..94f3ce9860 100644
--- a/platform/windows/gl_manager_windows.h
+++ b/platform/windows/gl_manager_windows.h
@@ -54,6 +54,7 @@ private:
 	struct GLWindow {
 		int width = 0;
 		int height = 0;
+		bool use_vsync = false;
 
 		// windows specific
 		HDC hDC;
@@ -72,8 +73,8 @@ private:
 
 	GLWindow *_current_window = nullptr;
 
-	PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT;
-	PFNWGLGETSWAPINTERVALEXTPROC wglGetSwapIntervalEXT;
+	PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT = nullptr;
+	PFNWGLGETSWAPINTERVALEXTPROC wglGetSwapIntervalEXT = nullptr;
 
 	// funcs
 	void _internal_set_current_window(GLWindow *p_win);
@@ -86,7 +87,6 @@ private:
 
 	bool direct_render;
 	int glx_minor, glx_major;
-	bool use_vsync;
 	ContextType context_type;
 
 private:
@@ -110,8 +110,8 @@ public:
 
 	Error initialize();
 
-	void set_use_vsync(bool p_use);
-	bool is_using_vsync() const;
+	void set_use_vsync(DisplayServer::WindowID p_window_id, bool p_use);
+	bool is_using_vsync(DisplayServer::WindowID p_window_id) const;
 
 	HDC get_hdc(DisplayServer::WindowID p_window_id);
 	HGLRC get_hglrc(DisplayServer::WindowID p_window_id);