From ae90e74a5a9cb4d11daa5660a26c3d571fe1adbd Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Sat, 28 Sep 2024 14:52:26 +0200
Subject: [PATCH] [dxvk] Introduce concept of transfer-only views

---
 src/dxvk/dxvk_image.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/dxvk/dxvk_image.cpp b/src/dxvk/dxvk_image.cpp
index cd0e5dab2..d7a46d1cb 100644
--- a/src/dxvk/dxvk_image.cpp
+++ b/src/dxvk/dxvk_image.cpp
@@ -296,8 +296,20 @@ namespace dxvk {
 
 
   VkImageView DxvkImageView::createView(VkImageViewType type) const {
+    constexpr VkImageUsageFlags ViewUsage =
+      VK_IMAGE_USAGE_SAMPLED_BIT |
+      VK_IMAGE_USAGE_STORAGE_BIT |
+      VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |
+      VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT;
+
+    // Legalize view usage. We allow creating transfer-only view
+    // objects so that some internal APIs can be more consistent.
     DxvkImageViewKey key = m_key;
     key.viewType = type;
+    key.usage &= ViewUsage;
+
+    if (!key.usage)
+      return VK_NULL_HANDLE;
 
     // Only use one layer for non-arrayed view types
     if (type == VK_IMAGE_VIEW_TYPE_1D || type == VK_IMAGE_VIEW_TYPE_2D)