[PATCH 3/4] win32u: Don't invalidate existing Vulkan surface when a new one is created for window.

[Paul Gofman]

From: Paul Gofman

---
 dlls/win32u/vulkan.c | 41 -----------------------------------------
 1 file changed, 41 deletions(-)

diff --git a/dlls/win32u/vulkan.c b/dlls/win32u/vulkan.c
index ba6a7f604b4..0b0e71f5564 100644
--- a/dlls/win32u/vulkan.c
+++ b/dlls/win32u/vulkan.c
@@ -75,45 +75,6 @@ static struct swapchain *swapchain_from_handle( VkSwapchainKHR handle )
     return CONTAINING_RECORD( obj, struct swapchain, obj );
 }

-static int window_surface_compare( const void *key, const struct rb_entry *entry )
-{
-    const struct surface *surface = RB_ENTRY_VALUE( entry, struct surface, window_entry );
-    HWND key_hwnd = (HWND)key;
-
-    if (key_hwnd < surface->hwnd) return -1;
-    if (key_hwnd > surface->hwnd) return 1;
-    return 0;
-}
-
-static pthread_mutex_t window_surfaces_lock = PTHREAD_MUTEX_INITIALIZER;
-static struct rb_tree window_surfaces = {.compare = window_surface_compare};
-
-static void window_surfaces_insert( struct surface *surface )
-{
-    struct surface *previous;
-    struct rb_entry *ptr;
-
-    pthread_mutex_lock( &window_surfaces_lock );
-
-    if (!(ptr = rb_get( &window_surfaces, surface->hwnd )))
-        rb_put( &window_surfaces, surface->hwnd, &surface->window_entry );
-    else
-    {
-        previous = RB_ENTRY_VALUE( ptr, struct surface, window_entry );
-        rb_replace( &window_surfaces, &previous->window_entry, &surface->window_entry );
-        previous->hwnd = 0; /* make sure previous surface becomes invalid */
-    }
-
-    pthread_mutex_unlock( &window_surfaces_lock );
-}
-
-static void window_surfaces_remove( struct surface *surface )
-{
-    pthread_mutex_lock( &window_surfaces_lock );
-    if (surface->hwnd) rb_remove( &window_surfaces, &surface->window_entry );
-    pthread_mutex_unlock( &window_surfaces_lock );
-}
-
 static VkResult win32u_vkCreateWin32SurfaceKHR( VkInstance client_instance, const VkWin32SurfaceCreateInfoKHR *create_info,
                                                 const VkAllocationCallbacks *allocator, VkSurfaceKHR *ret )
 {
@@ -161,7 +122,6 @@ static VkResult win32u_vkCreateWin32SurfaceKHR( VkInstance client_instance, cons
     instance->p_insert_object( instance, &surface->obj.obj );

if (dummy) NtUserDestroyWindow( dummy );
-    window_surfaces_insert( surface );

*ret = surface->obj.client.surface;
     return VK_SUCCESS;
@@ -189,7 +149,6 @@ static void win32u_vkDestroySurfaceKHR( VkInstance client_instance, VkSurfaceKHR
     driver_funcs->p_vulkan_surface_destroy( surface->hwnd, surface->driver_private );

instance->p_remove_object( instance, &surface->obj.obj );
-    window_surfaces_remove( surface );

free( surface );
 }