Semaphore wrapper.

src/vk/Swapchain.h

@@ -1,6 +1,7 @@
 // Copyright 2022 Simon Boyé
 #pragma once
 
+#include <vk/Semaphore.h>
 #include <vk/Context.h>
 
 #include <core/utils.h>
@@ -58,7 +59,7 @@ public:
     VkImage image(size_t image_index);
     VkImageView image_view();
     VkImageView image_view(size_t image_index);
-    VkSemaphore ready_to_render();
+    Semaphore& ready_to_render();
     Fence& render_done();
 
     void initialize(const SwapchainSettings& settings);
@@ -80,7 +81,7 @@ private:
     };
 
     struct FrameResources {
-        VkSemaphore ready_to_render = VK_NULL_HANDLE;
+        Semaphore ready_to_render;
         Fence* render_done = nullptr;
     };