From 8b9db26536365a26fe320ef7884a9e078b6fc4a9 Mon Sep 17 00:00:00 2001
From: Robin Kertels <robin.kertels@gmail.com>
Date: Mon, 18 Oct 2021 13:12:32 +0200
Subject: [PATCH] [util] Add computeMipLevelOffset

---
 src/dxvk/dxvk_util.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/dxvk/dxvk_util.h b/src/dxvk/dxvk_util.h
index 4527f14e..4535815e 100644
--- a/src/dxvk/dxvk_util.h
+++ b/src/dxvk/dxvk_util.h
@@ -132,7 +132,21 @@ namespace dxvk::util {
     size.depth  = std::max(1u, size.depth  >> level);
     return size;
   }
-  
+
+  /**
+   * \brief Computes offset in a given mip level
+   *
+   * \param [in] size Base mip level offset
+   * \param [in] level mip level to compute
+   * \returns Offset on the given mip level
+   */
+  inline VkOffset3D computeMipLevelOffset(VkOffset3D offset, uint32_t level) {
+    offset.x  = offset.x >> level;
+    offset.y  = offset.y >> level;
+    offset.z  = offset.z >> level;
+    return offset;
+  }
+
   /**
    * \brief Computes mip level extent
    *