From b9df5bdf8cd670f4709ce306873c12f8e5c45870 Mon Sep 17 00:00:00 2001
From: hyzboy <hyzboy@gmail.com>
Date: Thu, 23 Sep 2021 15:23:09 +0800
Subject: [PATCH] restore old codes.

---
 src/SceneGraph/Vulkan/VKDeviceAttribute.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/SceneGraph/Vulkan/VKDeviceAttribute.cpp b/src/SceneGraph/Vulkan/VKDeviceAttribute.cpp
index 20dfb22e..c7100cc8 100644
--- a/src/SceneGraph/Vulkan/VKDeviceAttribute.cpp
+++ b/src/SceneGraph/Vulkan/VKDeviceAttribute.cpp
@@ -87,7 +87,10 @@ void GPUDeviceAttribute::Refresh()
             {
                 VkSurfaceFormatKHR *sf = surface_formats_list.GetData();
 
-                if (format_count>1)
+                if (format_count == 1 && sf->format == VK_FORMAT_UNDEFINED)
+                {                    
+                }
+                else
                 {
                     surface_format.format=VK_FORMAT_UNDEFINED;