From d42182befc9a5e449cb6a8ea4002b6026b9aa500 Mon Sep 17 00:00:00 2001
From: Swung0x48 <swung0x48@outlook.com>
Date: Mon, 23 Feb 2026 23:12:22 +0800
Subject: [PATCH] [Fix] (MG_Backend/DirectVulkan): swap swapchain width/height
 on 90/270 rotation

---
 .../MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp b/MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
index c62df4eb..da293e70 100644
--- a/MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
+++ b/MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
@@ -127,6 +127,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
         createInfo.imageFormat = pickedSurfaceFormat.format;
         createInfo.imageColorSpace = pickedSurfaceFormat.colorSpace;
         createInfo.imageExtent = swapchainCaps.currentExtent;
+        if (swapchainCaps.currentTransform == VK_SURFACE_TRANSFORM_ROTATE_90_BIT_KHR ||
+            swapchainCaps.currentTransform == VK_SURFACE_TRANSFORM_ROTATE_270_BIT_KHR) {
+            std::swap(createInfo.imageExtent.width, createInfo.imageExtent.height);
+        }
+
         createInfo.imageArrayLayers = 1;
         const VkImageUsageFlags requiredImageUsage =
             VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;