1 files changed, 81 insertions, 0 deletions
diff --git a/src/libs/dxvk-native-1.9.2a/src/d3d11/d3d11_view.h b/src/libs/dxvk-native-1.9.2a/src/d3d11/d3d11_view.h
new file mode 100644
index 00000000..50fcef10
--- /dev/null
+++ b/src/libs/dxvk-native-1.9.2a/src/d3d11/d3d11_view.h
@@ -0,0 +1,81 @@
+#pragma once
+
+#include "d3d11_include.h"
+
+namespace dxvk {
+
+  /**
+   * \brief Buffer view info
+   * 
+   * Stores the byte range covered
+   * by a buffer view.
+   */
+  struct D3D11_VK_BUFFER_VIEW_INFO {
+    VkDeviceSize                Offset;
+    VkDeviceSize                Length;
+  };
+
+  /**
+   * \brief Image view info
+   * 
+   * Stores the subresource range
+   * covered by an image view.
+   */
+  struct D3D11_VK_IMAGE_VIEW_INFO {
+    VkImageAspectFlags          Aspects;
+    uint32_t                    MinLevel;
+    uint32_t                    MinLayer;
+    uint32_t                    NumLevels;
+    uint32_t                    NumLayers;
+  };
+
+  /**
+   * \brief Common view info
+   *
+   * Stores a pointer to the resource as
+   * well as the type-specific range that
+   * is affected by the view.
+   */
+  struct D3D11_VK_VIEW_INFO {
+    ID3D11Resource*             pResource;
+    D3D11_RESOURCE_DIMENSION    Dimension;
+    UINT                        BindFlags;
+    union {
+      D3D11_VK_BUFFER_VIEW_INFO Buffer;
+      D3D11_VK_IMAGE_VIEW_INFO  Image;
+    };
+  };
+
+  /**
+   * \brief Checks whether two views overlap
+   * 
+   * Overlapping views may conflict in case
+   * one or both views are used for writing.
+   * \param [in] a First view to check
+   * \param [in] b Second view to check
+   * \returns \c true if the views overlap
+   */
+  inline bool CheckViewOverlap(const D3D11_VK_VIEW_INFO& a, const D3D11_VK_VIEW_INFO b) {
+    if (likely(a.pResource != b.pResource))
+      return false;
+    
+    if (a.Dimension == D3D11_RESOURCE_DIMENSION_BUFFER) {
+      // Just check whether the buffer ranges overlap
+      return (a.Buffer.Offset < b.Buffer.Offset + b.Buffer.Length)
+          && (a.Buffer.Offset + a.Buffer.Length > b.Buffer.Offset);
+    } else {
+      // Check whether the subresource ranges overlap
+      return (a.Image.Aspects & b.Image.Aspects)
+          && (a.Image.MinLevel < b.Image.MinLevel + b.Image.NumLevels)
+          && (a.Image.MinLayer < b.Image.MinLayer + b.Image.NumLayers)
+          && (a.Image.MinLevel + a.Image.NumLevels > b.Image.MinLevel)
+          && (a.Image.MinLayer + a.Image.NumLayers > b.Image.MinLayer);
+    }
+  }
+
+  template<typename T1, typename T2>
+  bool CheckViewOverlap(const T1* a, const T2* b) {
+    return a && b && CheckViewOverlap(a->GetViewInfo(), b->GetViewInfo());
+  }
+
+}
+\ No newline at end of file