Fix initialising of gl_manager and checking gl_manager and context_vulkan preventing crash issues.

7 files changed, 73 insertions, 78 deletions

diff --git a/platform/android/display_server_android.h b/platform/android/display_server_android.h
index 669a1c80e4..5b987ad70e 100644
--- a/platform/android/display_server_android.h
+++ b/platform/android/display_server_android.h
@@ -70,8 +70,8 @@ class DisplayServerAndroid : public DisplayServer {
 	CursorShape cursor_shape = CursorShape::CURSOR_ARROW;
 
 #if defined(VULKAN_ENABLED)
-	VulkanContextAndroid *context_vulkan;
-	RenderingDeviceVulkan *rendering_device_vulkan;
+	VulkanContextAndroid *context_vulkan = nullptr;
+	RenderingDeviceVulkan *rendering_device_vulkan = nullptr;
 #endif
 
 	ObjectID window_attached_instance_id;
diff --git a/platform/iphone/display_server_iphone.h b/platform/iphone/display_server_iphone.h
index 5cfcc1765c..5ed03cc06e 100644
--- a/platform/iphone/display_server_iphone.h
+++ b/platform/iphone/display_server_iphone.h
@@ -54,8 +54,8 @@ class DisplayServerIPhone : public DisplayServer {
 	_THREAD_SAFE_CLASS_
 
 #if defined(VULKAN_ENABLED)
-	VulkanContextIPhone *context_vulkan;
-	RenderingDeviceVulkan *rendering_device_vulkan;
+	VulkanContextIPhone *context_vulkan = nullptr;
+	RenderingDeviceVulkan *rendering_device_vulkan = nullptr;
 #endif
 
 	DisplayServer::ScreenOrientation screen_orientation;
diff --git a/platform/iphone/display_server_iphone.mm b/platform/iphone/display_server_iphone.mm
index b746c60d4e..6a01ca1b13 100644
--- a/platform/iphone/display_server_iphone.mm
+++ b/platform/iphone/display_server_iphone.mm
@@ -54,6 +54,8 @@ DisplayServerIPhone::DisplayServerIPhone(const String &p_rendering_driver, Windo
 #if defined(GLES3_ENABLED)
 	// FIXME: Add support for both OpenGL and Vulkan when OpenGL is implemented
 	// again,
+	// Note that we should be checking "opengl3" as the driver, might never enable this seeing OpenGL is deprecated on iOS
+	// We are hardcoding the rendering_driver to "vulkan" down below
 
 	if (rendering_driver == "opengl_es") {
 		bool gl_initialization_error = false;
@@ -131,18 +133,16 @@ DisplayServerIPhone::DisplayServerIPhone(const String &p_rendering_driver, Windo
 
 DisplayServerIPhone::~DisplayServerIPhone() {
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
-		if (rendering_device_vulkan) {
-			rendering_device_vulkan->finalize();
-			memdelete(rendering_device_vulkan);
-			rendering_device_vulkan = nullptr;
-		}
+	if (rendering_device_vulkan) {
+		rendering_device_vulkan->finalize();
+		memdelete(rendering_device_vulkan);
+		rendering_device_vulkan = nullptr;
+	}
 
-		if (context_vulkan) {
-			context_vulkan->window_destroy(MAIN_WINDOW_ID);
-			memdelete(context_vulkan);
-			context_vulkan = nullptr;
-		}
+	if (context_vulkan) {
+		context_vulkan->window_destroy(MAIN_WINDOW_ID);
+		memdelete(context_vulkan);
+		context_vulkan = nullptr;
 	}
 #endif
 }
@@ -565,10 +565,8 @@ void DisplayServerIPhone::resize_window(CGSize viewSize) {
 	Size2i size = Size2i(viewSize.width, viewSize.height) * screen_get_max_scale();
 
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
-		if (context_vulkan) {
-			context_vulkan->window_resize(MAIN_WINDOW_ID, size.x, size.y);
-		}
+	if (context_vulkan) {
+		context_vulkan->window_resize(MAIN_WINDOW_ID, size.x, size.y);
 	}
 #endif
 
diff --git a/platform/linuxbsd/display_server_x11.cpp b/platform/linuxbsd/display_server_x11.cpp
index 74ec8b652f..247665e313 100644
--- a/platform/linuxbsd/display_server_x11.cpp
+++ b/platform/linuxbsd/display_server_x11.cpp
@@ -1150,7 +1150,7 @@ void DisplayServerX11::delete_sub_window(WindowID p_id) {
 	}
 
 #ifdef VULKAN_ENABLED
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->window_destroy(p_id);
 	}
 #endif
@@ -2927,7 +2927,7 @@ void DisplayServerX11::_window_changed(XEvent *event) {
 	wd.size = new_rect.size;
 
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->window_resize(window_id, wd.size.width, wd.size.height);
 	}
 #endif
@@ -4672,12 +4672,12 @@ DisplayServerX11::~DisplayServerX11() {
 	//destroy all windows
 	for (KeyValue<WindowID, WindowData> &E : windows) {
 #ifdef VULKAN_ENABLED
-		if (rendering_driver == "vulkan") {
+		if (context_vulkan) {
 			context_vulkan->window_destroy(E.key);
 		}
 #endif
 #ifdef GLES3_ENABLED
-		if (rendering_driver == "opengl3") {
+		if (gl_manager) {
 			gl_manager->window_destroy(E.key);
 		}
 #endif
@@ -4693,15 +4693,15 @@ DisplayServerX11::~DisplayServerX11() {
 
 	//destroy drivers
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
-		if (rendering_device_vulkan) {
-			rendering_device_vulkan->finalize();
-			memdelete(rendering_device_vulkan);
-		}
+	if (rendering_device_vulkan) {
+		rendering_device_vulkan->finalize();
+		memdelete(rendering_device_vulkan);
+		rendering_device_vulkan = nullptr;
+	}
 
-		if (context_vulkan) {
-			memdelete(context_vulkan);
-		}
+	if (context_vulkan) {
+		memdelete(context_vulkan);
+		context_vulkan = nullptr;
 	}
 #endif
 
diff --git a/platform/osx/display_server_osx.mm b/platform/osx/display_server_osx.mm
index fec5c98a99..7cd51611b3 100644
--- a/platform/osx/display_server_osx.mm
+++ b/platform/osx/display_server_osx.mm
@@ -167,12 +167,12 @@ static NSCursor *_cursorFromSelector(SEL selector, SEL fallback = nil) {
 	}
 
 #if defined(GLES3_ENABLED)
-	if (DS_OSX->rendering_driver == "opengl3") {
+	if (DS_OSX->gl_manager) {
 		DS_OSX->gl_manager->window_destroy(window_id);
 	}
 #endif
 #ifdef VULKAN_ENABLED
-	if (DS_OSX->rendering_driver == "vulkan") {
+	if (DS_OSX->context_vulkan) {
 		DS_OSX->context_vulkan->window_destroy(window_id);
 	}
 #endif
@@ -272,12 +272,12 @@ static NSCursor *_cursorFromSelector(SEL selector, SEL fallback = nil) {
 	}
 
 #if defined(GLES3_ENABLED)
-	if (DS_OSX->rendering_driver == "opengl3") {
+	if (DS_OSX->gl_manager) {
 		DS_OSX->gl_manager->window_resize(window_id, wd.size.width, wd.size.height);
 	}
 #endif
 #if defined(VULKAN_ENABLED)
-	if (DS_OSX->rendering_driver == "vulkan") {
+	if (DS_OSX->context_vulkan) {
 		DS_OSX->context_vulkan->window_resize(window_id, wd.size.width, wd.size.height);
 	}
 #endif
@@ -403,7 +403,7 @@ static NSCursor *_cursorFromSelector(SEL selector, SEL fallback = nil) {
 
 - (CALayer *)makeBackingLayer {
 #if defined(VULKAN_ENABLED)
-	if (DS_OSX->rendering_driver == "vulkan") {
+	if (DS_OSX->context_vulkan) {
 		CALayer *layer = [[CAMetalLayer class] layer];
 		return layer;
 	}
@@ -413,12 +413,12 @@ static NSCursor *_cursorFromSelector(SEL selector, SEL fallback = nil) {
 
 - (void)updateLayer {
 #if defined(GLES3_ENABLED)
-	if (DS_OSX->rendering_driver == "opengl3") {
+	if (DS_OSX->gl_manager) {
 		DS_OSX->gl_manager->window_update(window_id);
 	}
 #endif
 #if defined(VULKAN_ENABLED)
-	if (DS_OSX->rendering_driver == "vulkan") {
+	if (DS_OSX->context_vulkan) {
 		[super updateLayer];
 	}
 #endif
@@ -2577,12 +2577,12 @@ void DisplayServerOSX::_set_window_per_pixel_transparency_enabled(bool p_enabled
 				[layer setOpaque:NO];
 			}
 #if defined(VULKAN_ENABLED)
-			if (rendering_driver == "vulkan") {
+			if (context_vulkan) {
 				//TODO - implement transparency for Vulkan
 			}
 #endif
 #if defined(GLES3_ENABLED)
-			if (rendering_driver == "opengl3") {
+			if (gl_manager) {
 				//TODO - reimplement OpenGLES
 			}
 #endif
@@ -2596,24 +2596,24 @@ void DisplayServerOSX::_set_window_per_pixel_transparency_enabled(bool p_enabled
 				[layer setOpaque:YES];
 			}
 #if defined(VULKAN_ENABLED)
-			if (rendering_driver == "vulkan") {
+			if (context_vulkan) {
 				//TODO - implement transparency for Vulkan
 			}
 #endif
 #if defined(GLES3_ENABLED)
-			if (rendering_driver == "opengl3") {
+			if (gl_manager) {
 				//TODO - reimplement OpenGLES
 			}
 #endif
 			wd.layered_window = false;
 		}
 #if defined(GLES3_ENABLED)
-		if (rendering_driver == "opengl3") {
+		if (gl_manager) {
 			//TODO - reimplement OpenGLES
 		}
 #endif
 #if defined(VULKAN_ENABLED)
-		if (rendering_driver == "vulkan") {
+		if (context_vulkan) {
 			//TODO - implement transparency for Vulkan
 		}
 #endif
@@ -3451,12 +3451,12 @@ void DisplayServerOSX::set_icon(const Ref<Image> &p_icon) {
 void DisplayServerOSX::window_set_vsync_mode(DisplayServer::VSyncMode p_vsync_mode, WindowID p_window) {
 	_THREAD_SAFE_METHOD_
 #if defined(GLES3_ENABLED)
-	if (rendering_driver == "opengl3") {
+	if (gl_manager) {
 		gl_manager->swap_buffers();
 	}
 #endif
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->set_vsync_mode(p_window, p_vsync_mode);
 	}
 #endif
@@ -3465,12 +3465,12 @@ void DisplayServerOSX::window_set_vsync_mode(DisplayServer::VSyncMode p_vsync_mo
 DisplayServer::VSyncMode DisplayServerOSX::window_get_vsync_mode(WindowID p_window) const {
 	_THREAD_SAFE_METHOD_
 #if defined(GLES3_ENABLED)
-	if (rendering_driver == "opengl3") {
+	if (gl_manager) {
 		return (gl_manager->is_using_vsync() ? DisplayServer::VSyncMode::VSYNC_ENABLED : DisplayServer::VSyncMode::VSYNC_DISABLED);
 	}
 #endif
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		return context_vulkan->get_vsync_mode(p_window);
 	}
 #endif
@@ -3586,19 +3586,15 @@ DisplayServerOSX::WindowID DisplayServerOSX::_create_window(WindowMode p_mode, V
 		}
 
 #if defined(VULKAN_ENABLED)
-		if (rendering_driver == "vulkan") {
-			if (context_vulkan) {
-				Error err = context_vulkan->window_create(window_id_counter, p_vsync_mode, wd.window_view, p_rect.size.width, p_rect.size.height);
-				ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create a Vulkan context");
-			}
+		if (context_vulkan) {
+			Error err = context_vulkan->window_create(window_id_counter, p_vsync_mode, wd.window_view, p_rect.size.width, p_rect.size.height);
+			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create a Vulkan context");
 		}
 #endif
 #if defined(GLES3_ENABLED)
-		if (rendering_driver == "opengl3") {
-			if (gl_manager) {
-				Error err = gl_manager->window_create(window_id_counter, wd.window_view, p_rect.size.width, p_rect.size.height);
-				ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create an OpenGL context");
-			}
+		if (gl_manager) {
+			Error err = gl_manager->window_create(window_id_counter, wd.window_view, p_rect.size.width, p_rect.size.height);
+			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create an OpenGL context");
 		}
 #endif
 		id = window_id_counter++;
@@ -3618,12 +3614,12 @@ DisplayServerOSX::WindowID DisplayServerOSX::_create_window(WindowMode p_mode, V
 	}
 
 #if defined(GLES3_ENABLED)
-	if (rendering_driver == "opengl3") {
+	if (gl_manager) {
 		gl_manager->window_resize(id, wd.size.width, wd.size.height);
 	}
 #endif
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->window_resize(id, wd.size.width, wd.size.height);
 	}
 #endif
diff --git a/platform/windows/display_server_windows.cpp b/platform/windows/display_server_windows.cpp
index f83029e662..899cf5dfad 100644
--- a/platform/windows/display_server_windows.cpp
+++ b/platform/windows/display_server_windows.cpp
@@ -538,12 +538,12 @@ void DisplayServerWindows::delete_sub_window(WindowID p_window) {
 	}
 
 #ifdef VULKAN_ENABLED
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->window_destroy(p_window);
 	}
 #endif
 #ifdef GLES3_ENABLED
-	if (rendering_driver == "opengl3") {
+	if (gl_manager) {
 		gl_manager->window_destroy(p_window);
 	}
 #endif
@@ -828,12 +828,12 @@ void DisplayServerWindows::window_set_size(const Size2i p_size, WindowID p_windo
 	wd.height = h;
 
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
+	if (context_vulkan) {
 		context_vulkan->window_resize(p_window, w, h);
 	}
 #endif
 #if defined(GLES3_ENABLED)
-	if (rendering_driver == "opengl3") {
+	if (gl_manager) {
 		gl_manager->window_resize(p_window, w, h);
 	}
 #endif
@@ -2646,7 +2646,7 @@ LRESULT DisplayServerWindows::WndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARA
 					windows[window_id].height = window_h;
 
 #if defined(VULKAN_ENABLED)
-					if ((rendering_driver == "vulkan") && window_created) {
+					if (context_vulkan && window_created) {
 						context_vulkan->window_resize(window_id, windows[window_id].width, windows[window_id].height);
 					}
 #endif
@@ -3108,7 +3108,7 @@ DisplayServer::WindowID DisplayServerWindows::_create_window(WindowMode p_mode,
 		}
 
 #ifdef VULKAN_ENABLED
-		if (rendering_driver == "vulkan") {
+		if (context_vulkan) {
 			if (context_vulkan->window_create(id, p_vsync_mode, wd.hWnd, hInstance, WindowRect.right - WindowRect.left, WindowRect.bottom - WindowRect.top) == -1) {
 				memdelete(context_vulkan);
 				context_vulkan = nullptr;
@@ -3119,7 +3119,7 @@ DisplayServer::WindowID DisplayServerWindows::_create_window(WindowMode p_mode,
 #endif
 
 #ifdef GLES3_ENABLED
-		if (rendering_driver == "opengl3") {
+		if (gl_manager) {
 			Error err = gl_manager->window_create(id, wd.hWnd, hInstance, WindowRect.right - WindowRect.left, WindowRect.bottom - WindowRect.top);
 			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Failed to create an OpenGL window.");
 		}
@@ -3458,7 +3458,7 @@ DisplayServerWindows::~DisplayServerWindows() {
 
 	if (windows.has(MAIN_WINDOW_ID)) {
 #ifdef VULKAN_ENABLED
-		if (rendering_driver == "vulkan") {
+		if (context_vulkan) {
 			context_vulkan->window_destroy(MAIN_WINDOW_ID);
 		}
 #endif
@@ -3470,14 +3470,15 @@ DisplayServerWindows::~DisplayServerWindows() {
 	}
 
 #if defined(VULKAN_ENABLED)
-	if (rendering_driver == "vulkan") {
-		if (rendering_device_vulkan) {
-			rendering_device_vulkan->finalize();
-			memdelete(rendering_device_vulkan);
-		}
+	if (rendering_device_vulkan) {
+		rendering_device_vulkan->finalize();
+		memdelete(rendering_device_vulkan);
+		rendering_device_vulkan = nullptr;
+	}
 
-		if (context_vulkan)
-			memdelete(context_vulkan);
+	if (context_vulkan) {
+		memdelete(context_vulkan);
+		context_vulkan = nullptr;
 	}
 #endif
 
diff --git a/platform/windows/display_server_windows.h b/platform/windows/display_server_windows.h
index a59f8ebb44..fec449ebce 100644
--- a/platform/windows/display_server_windows.h
+++ b/platform/windows/display_server_windows.h
@@ -305,12 +305,12 @@ class DisplayServerWindows : public DisplayServer {
 	Point2i center;
 
 #if defined(GLES3_ENABLED)
-	GLManager_Windows *gl_manager;
+	GLManager_Windows *gl_manager = nullptr;
 #endif
 
 #if defined(VULKAN_ENABLED)
-	VulkanContextWindows *context_vulkan;
-	RenderingDeviceVulkan *rendering_device_vulkan;
+	VulkanContextWindows *context_vulkan = nullptr;
+	RenderingDeviceVulkan *rendering_device_vulkan = nullptr;
 #endif
 
 	Map<int, Vector2> touch_state;