From 114222f0eb37fc521b91bcc32bdf17ae7b1ec230 Mon Sep 17 00:00:00 2001
From: baldurk <baldurk@baldurk.org>
Date: Mon, 3 Aug 2026 10:40:00 +0100
Subject: [PATCH] Check for extensions function pointers provided by layers.
 Closes #3877

---
 renderdoc/driver/vulkan/vk_dispatchtables.cpp    |  1 +
 .../driver/vulkan/wrappers/vk_device_funcs.cpp   | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/renderdoc/driver/vulkan/vk_dispatchtables.cpp b/renderdoc/driver/vulkan/vk_dispatchtables.cpp
index 68b7c9572..1c823a9ca 100644
--- a/renderdoc/driver/vulkan/vk_dispatchtables.cpp
+++ b/renderdoc/driver/vulkan/vk_dispatchtables.cpp
@@ -125,6 +125,7 @@ void InitInstanceExtensionTables(VkInstance instance, InstanceDeviceInfo *info)
   DeclExts();
 
   CheckInstanceExts();
+  CheckDeviceExts();
 
   InstanceGPA(EnumerateDeviceExtensionProperties);
   InstanceGPA(EnumerateDeviceLayerProperties);
diff --git a/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp b/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
index 774417eb4..c65982294 100644
--- a/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
+++ b/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
@@ -876,6 +876,21 @@ VkResult WrappedVulkan::vkCreateInstance(const VkInstanceCreateInfo *pCreateInfo
       {
         availablePhysDeviceFunctions.insert(e.extensionName);
       }
+
+      for(uint32_t i = 0; i < modifiedCreateInfo.enabledLayerCount; i++)
+      {
+        ObjDisp(m_Instance)
+            ->EnumerateDeviceExtensionProperties(p, modifiedCreateInfo.ppEnabledLayerNames[i],
+                                                 &count, NULL);
+
+        exts.resize(count);
+        ObjDisp(m_Instance)->EnumerateDeviceExtensionProperties(p, NULL, &count, exts.data());
+
+        for(const VkExtensionProperties &e : exts)
+        {
+          availablePhysDeviceFunctions.insert(e.extensionName);
+        }
+      }
     }
     // we don't bother wrapping these, they're temporary handles
   }
@@ -892,6 +907,7 @@ VkResult WrappedVulkan::vkCreateInstance(const VkInstanceCreateInfo *pCreateInfo
     record->instDevInfo->ext_##name = true;                                                \
   }
   CheckInstanceExts();
+  CheckDeviceExts();
 #undef CheckExt
 #define CheckExt(name, ver)                                               \
   if(!strcmp(modifiedCreateInfo.ppEnabledExtensionNames[i], "VK_" #name)) \