[VK] Fix swap-chain orientation.

Prefer identity transformation (VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) and only use "currentTransform" if identity is not supported.
LukasBanana · Sep 22, 2024 · c66d632 · c66d632
1 parent 7a5f9f9
commit c66d632
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/sources/Renderer/Vulkan/VKSwapChain.cpp b/sources/Renderer/Vulkan/VKSwapChain.cpp
@@ -480,7 +480,12 @@ void VKSwapChain::CreateSwapChain(const Extent2D& resolution, std::uint32_t vsyn
  createInfo.pQueueFamilyIndices = nullptr;
  }
 
- createInfo.preTransform = surfaceSupportDetails_.caps.currentTransform;
+ /* Prefer identity transformation */
+ if ((surfaceSupportDetails_.caps.supportedTransforms & VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR) != 0)
+ createInfo.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
+ else
+ createInfo.preTransform = surfaceSupportDetails_.caps.currentTransform;
+
  createInfo.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
  createInfo.presentMode = presentMode;
  createInfo.clipped = VK_TRUE;