Fixed viewport swapchains not getting recreated in some cases

examples/imgui_impl_vulkan_with_textures.cpp

@@ -1477,7 +1477,20 @@ static void ImGui_ImplVulkan_SwapBuffers(ImGuiViewport* viewport, void*)
     info.pSwapchains = &wd->Swapchain;
     info.pImageIndices = &present_index;
     err = vkQueuePresentKHR(v->Queue, &info);
-    check_vk_result(err);
+    //check_vk_result(err);
+    if (err != VK_SUCCESS || err == VK_SUBOPTIMAL_KHR)
+    {
+        if (err == VK_ERROR_OUT_OF_DATE_KHR)
+        {
+            // Swap chain is no longer compatible with the surface and needs to be recreated
+            ImGui_ImplVulkanH_CreateOrResizeWindow(v->Instance, v->PhysicalDevice, v->Device, wd, v->QueueFamily, v->Allocator, (int)viewport->Size.x, (int)viewport->Size.y, v->MinImageCount);
+            return;
+        }
+        else
+        {
+            check_vk_result(err);
+        }
+    }
 
     wd->FrameIndex = (wd->FrameIndex + 1) % wd->ImageCount;         // This is for the next vkWaitForFences()
     wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->ImageCount; // Now we can use the next set of semaphores