From 7ccfb57d57f0228ce572ef46f1e9c393cf516597 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Thu, 17 Oct 2024 22:06:19 +0200
Subject: [PATCH] [dxvk] Reintroduce resource cookies

---
 src/dxvk/dxvk_sparse.cpp |  3 +++
 src/dxvk/dxvk_sparse.h   | 15 +++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/dxvk/dxvk_sparse.cpp b/src/dxvk/dxvk_sparse.cpp
index dbe339560..8c469f254 100644
--- a/src/dxvk/dxvk_sparse.cpp
+++ b/src/dxvk/dxvk_sparse.cpp
@@ -7,6 +7,9 @@
 
 namespace dxvk {
 
+  std::atomic<uint64_t> DxvkPagedResource::s_cookie = { 0u };
+
+
   DxvkPagedResource::~DxvkPagedResource() {
 
   }
diff --git a/src/dxvk/dxvk_sparse.h b/src/dxvk/dxvk_sparse.h
index e7df91a8f..04bef8e9a 100644
--- a/src/dxvk/dxvk_sparse.h
+++ b/src/dxvk/dxvk_sparse.h
@@ -1,5 +1,6 @@
 #pragma once
 
+#include <atomic>
 #include <map>
 
 #include "dxvk_access.h"
@@ -434,8 +435,19 @@ namespace dxvk {
 
   public:
 
+    DxvkPagedResource()
+    : m_cookie(++s_cookie) { }
+
     virtual ~DxvkPagedResource();
 
+    /**
+     * \brief Queries resource cookie
+     * \returns Resource cookie
+     */
+    uint64_t cookie() const {
+      return m_cookie;
+    }
+
     /**
      * \brief Increments reference count
      */
@@ -513,11 +525,14 @@ namespace dxvk {
   private:
 
     std::atomic<uint64_t> m_useCount = { 0u };
+    uint64_t              m_cookie = { 0u };
 
     static constexpr uint64_t getIncrement(DxvkAccess access) {
       return uint64_t(1u) << (uint32_t(access) * 20u);
     }
 
+    static std::atomic<uint64_t> s_cookie;
+
   };