From 26ed914707f62181c54f851ce821a2da580a133a Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Tue, 4 Mar 2025 02:05:34 +0100
Subject: [PATCH] [dxvk] Add flag to avoid creating dedicated allocations

---
 src/dxvk/dxvk_memory.cpp | 3 +++
 src/dxvk/dxvk_memory.h   | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/src/dxvk/dxvk_memory.cpp b/src/dxvk/dxvk_memory.cpp
index c31dafb83..b6a61c6d5 100644
--- a/src/dxvk/dxvk_memory.cpp
+++ b/src/dxvk/dxvk_memory.cpp
@@ -932,6 +932,9 @@ namespace dxvk {
       dedicatedRequirements.prefersDedicatedAllocation = VK_TRUE;
     }
 
+    if (!dedicatedRequirements.requiresDedicatedAllocation && allocationInfo.mode.test(DxvkAllocationMode::NoDedicated))
+      dedicatedRequirements.prefersDedicatedAllocation = VK_FALSE;
+
     Rc<DxvkResourceAllocation> allocation;
 
     if (!(createInfo.flags & VK_IMAGE_CREATE_SPARSE_BINDING_BIT)) {
diff --git a/src/dxvk/dxvk_memory.h b/src/dxvk/dxvk_memory.h
index bd7f685d1..c432df0f2 100644
--- a/src/dxvk/dxvk_memory.h
+++ b/src/dxvk/dxvk_memory.h
@@ -959,6 +959,8 @@ namespace dxvk {
     /// If set, the allocation will only succeed if it
     /// can be suballocated from an existing chunk.
     NoAllocation    = 1,
+    /// Avoid using a dedicated allocation for this resource
+    NoDedicated     = 2,
 
     eFlagEnum
   };