Fixed crash initializing OpenGL ES renderer if OpenGL renderer fails

src/video/SDL_video.c

@@ -1402,7 +1402,7 @@ SDL_RecreateWindow(SDL_Window * window, Uint32 flags)
 
     if (_this->CreateWindow && !(flags & SDL_WINDOW_FOREIGN)) {
         if (_this->CreateWindow(_this, window) < 0) {
-            if (flags & SDL_WINDOW_OPENGL) {
+            if ((flags & SDL_WINDOW_OPENGL) && !(window->flags & SDL_WINDOW_OPENGL)) {
                 SDL_GL_UnloadLibrary();
             }
             return -1;

src/video/cocoa/SDL_cocoawindow.m

@@ -1488,6 +1488,8 @@ Cocoa_DestroyWindow(_THIS, SDL_Window * window)
     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
 
+    window->driverdata = NULL;
+
     if (data) {
         [data->listener close];
         [data->listener release];

src/video/uikit/SDL_uikitwindow.m

@@ -289,11 +289,13 @@ void
 UIKit_DestroyWindow(_THIS, SDL_Window * window)
 {
     SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
+
+    window->driverdata = NULL;
+
     if (data) {
         [data->viewcontroller release];
         [data->uiwindow release];
         SDL_free(data);
-        window->driverdata = NULL;
     }
 }
 

src/video/windows/SDL_windowswindow.c

@@ -619,6 +619,8 @@ WIN_DestroyWindow(_THIS, SDL_Window * window)
 {
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
 
+    window->driverdata = NULL;
+
     if (data) {
         ReleaseDC(data->hwnd, data->hdc);
         if (data->created) {

src/video/x11/SDL_x11window.c

@@ -1393,6 +1393,7 @@ void
 X11_DestroyWindow(_THIS, SDL_Window * window)
 {
     SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
+
     window->driverdata = NULL;
 
     if (data) {