4 files changed, 30 insertions, 14 deletions
diff --git a/platform/linuxbsd/display_server_x11.cpp b/platform/linuxbsd/display_server_x11.cpp
index ace07a3ac6..0b4a6b19d8 100644
--- a/platform/linuxbsd/display_server_x11.cpp
+++ b/platform/linuxbsd/display_server_x11.cpp
@@ -47,8 +47,7 @@
 #include "servers/visual/rasterizer_rd/rasterizer_rd.h"
 #endif
 
-#include "servers/visual/visual_server_raster.h"
-#include "servers/visual/visual_server_wrap_mt.h"
+#include "scene/resources/texture.h"
 
 #ifdef HAVE_MNTENT
 #include <mntent.h>
@@ -89,6 +88,8 @@
 
 #include <X11/XKBlib.h>
 
+#include "core/project_settings.h"
+
 // 2.2 is the first release with multitouch
 #define XINPUT_CLIENT_VERSION_MAJOR 2
 #define XINPUT_CLIENT_VERSION_MINOR 2
@@ -641,7 +642,7 @@ void DisplayServerX11::delete_sub_window(WindowID p_id) {
 
 #ifdef VULKAN_ENABLED
 	if (rendering_driver == "vulkan") {
-		context_vulkan->window_destroy(wd.vulkan_window);
+		context_vulkan->window_destroy(p_id);
 	}
 #endif
 	XUnmapWindow(x11_display, wd.x11_window);
@@ -665,6 +666,13 @@ void DisplayServerX11::window_set_title(const String &p_title, WindowID p_window
 	XChangeProperty(x11_display, wd.x11_window, _net_wm_name, utf8_string, 8, PropModeReplace, (unsigned char *)p_title.utf8().get_data(), p_title.utf8().length());
 }
 
+void DisplayServerX11::window_set_resize_callback(const Callable &p_callable, WindowID p_window) {
+
+	ERR_FAIL_COND(!windows.has(p_window));
+	WindowData &wd = windows[p_window];
+	wd.resize_callback = p_callable;
+}
+
 int DisplayServerX11::window_get_current_screen(WindowID p_window) const {
 	ERR_FAIL_COND_V(!windows.has(p_window), -1);
 	const WindowData &wd = windows[p_window];
@@ -2020,9 +2028,17 @@ void DisplayServerX11::_window_changed(XEvent *event) {
 
 #if defined(VULKAN_ENABLED)
 	if (rendering_driver == "vulkan") {
-		context_vulkan->window_resize(wd.vulkan_window, wd.size.width, wd.size.height);
+		context_vulkan->window_resize(window_id, wd.size.width, wd.size.height);
 	}
 #endif
+
+	if (!wd.resize_callback.is_null()) {
+		Variant size = wd.size;
+		Variant *sizep = &size;
+		Variant ret;
+		Callable::CallError ce;
+		wd.resize_callback.call((const Variant **)&sizep, 1, ret, ce);
+	}
 }
 
 void DisplayServerX11::process_events() {
@@ -2764,8 +2780,8 @@ DisplayServerX11::WindowID DisplayServerX11::_create_window(WindowMode p_mode, c
 
 #if defined(VULKAN_ENABLED)
 		if (context_vulkan) {
-			wd.vulkan_window = context_vulkan->window_create(wd.x11_window, x11_display, p_resolution.width, p_resolution.height);
-			ERR_FAIL_COND_V_MSG(wd.vulkan_window == -1, INVALID_WINDOW_ID, "Can't create a Vulkan window");
+			Error err = context_vulkan->window_create(window_id_counter, wd.x11_window, x11_display, p_resolution.width, p_resolution.height);
+			ERR_FAIL_COND_V_MSG(err != OK, INVALID_WINDOW_ID, "Can't create a Vulkan window");
 		}
 #endif
 
@@ -3295,7 +3311,7 @@ DisplayServerX11::~DisplayServerX11() {
 	for (Map<WindowID, WindowData>::Element *E = windows.front(); E; E = E->next()) {
 #ifdef VULKAN_ENABLED
 		if (rendering_driver == "vulkan") {
-			context_vulkan->window_destroy(E->get().vulkan_window);
+			context_vulkan->window_destroy(E->key());
 		}
 #endif
 
diff --git a/platform/linuxbsd/display_server_x11.h b/platform/linuxbsd/display_server_x11.h
index 6964447be2..b1ecde30d9 100644
--- a/platform/linuxbsd/display_server_x11.h
+++ b/platform/linuxbsd/display_server_x11.h
@@ -113,14 +113,13 @@ class DisplayServerX11 : public DisplayServer {
 	struct WindowData {
 		Window x11_window;
 		::XIC xic;
-#if defined(VULKAN_ENABLED)
-		int vulkan_window;
-#endif
+
 		Size2i min_size;
 		Size2i max_size;
 		Size2i size;
 		Size2i im_position;
 		bool im_active = false;
+		Callable resize_callback;
 
 		//better to guess on the fly, given WM can change it
 		//WindowMode mode;
@@ -256,6 +255,7 @@ public:
 	virtual void delete_sub_window(WindowID p_id);
 
 	virtual void window_set_title(const String &p_title, WindowID p_window = MAIN_WINDOW_ID);
+	virtual void window_set_resize_callback(const Callable &p_callable, WindowID p_window = MAIN_WINDOW_ID);
 
 	virtual int window_get_current_screen(WindowID p_window = MAIN_WINDOW_ID) const;
 	virtual void window_set_current_screen(int p_screen, WindowID p_window = MAIN_WINDOW_ID);
diff --git a/platform/linuxbsd/vulkan_context_x11.cpp b/platform/linuxbsd/vulkan_context_x11.cpp
index 602dbc77a2..d0e1b1678c 100644
--- a/platform/linuxbsd/vulkan_context_x11.cpp
+++ b/platform/linuxbsd/vulkan_context_x11.cpp
@@ -35,7 +35,7 @@ const char *VulkanContextX11::_get_platform_surface_extension() const {
 	return VK_KHR_XLIB_SURFACE_EXTENSION_NAME;
 }
 
-int VulkanContextX11::window_create(::Window p_window, Display *p_display, int p_width, int p_height) {
+Error VulkanContextX11::window_create(DisplayServer::WindowID p_window_id, ::Window p_window, Display *p_display, int p_width, int p_height) {
 
 	VkXlibSurfaceCreateInfoKHR createInfo;
 	createInfo.sType = VK_STRUCTURE_TYPE_XLIB_SURFACE_CREATE_INFO_KHR;
@@ -46,8 +46,8 @@ int VulkanContextX11::window_create(::Window p_window, Display *p_display, int p
 
 	VkSurfaceKHR surface;
 	VkResult err = vkCreateXlibSurfaceKHR(_get_instance(), &createInfo, NULL, &surface);
-	ERR_FAIL_COND_V(err, -1);
-	return _window_create(surface, p_width, p_height);
+	ERR_FAIL_COND_V(err, ERR_CANT_CREATE);
+	return _window_create(p_window_id, surface, p_width, p_height);
 }
 
 VulkanContextX11::VulkanContextX11() {
diff --git a/platform/linuxbsd/vulkan_context_x11.h b/platform/linuxbsd/vulkan_context_x11.h
index 573f994ea6..6e144ab2d9 100644
--- a/platform/linuxbsd/vulkan_context_x11.h
+++ b/platform/linuxbsd/vulkan_context_x11.h
@@ -39,7 +39,7 @@ class VulkanContextX11 : public VulkanContext {
 	virtual const char *_get_platform_surface_extension() const;
 
 public:
-	int window_create(::Window p_window, Display *p_display, int p_width, int p_height);
+	Error window_create(DisplayServer::WindowID p_window_id, ::Window p_window, Display *p_display, int p_width, int p_height);
 
 	VulkanContextX11();
 	~VulkanContextX11();