From ae11538f5d667b11d3b3191a827093f3727eed1b Mon Sep 17 00:00:00 2001
From: skallweitNV <64953474+skallweitNV@users.noreply.github.com>
Date: Wed, 25 Jan 2023 17:48:55 +0100
Subject: GFX report live objects (#2609)

* Add utility to call D3D ReportLiveObjects

* Add gfxReportLiveObjects API call

* Only warn on swapchain image references
---
 tools/gfx/d3d/d3d-util.cpp | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

(limited to 'tools/gfx/d3d/d3d-util.cpp')

diff --git a/tools/gfx/d3d/d3d-util.cpp b/tools/gfx/d3d/d3d-util.cpp
index dff93810c..05a948773 100644
--- a/tools/gfx/d3d/d3d-util.cpp
+++ b/tools/gfx/d3d/d3d-util.cpp
@@ -4,6 +4,7 @@
 #include <d3d12.h>
 #include <d3dcompiler.h>
 #include <dxgi1_4.h>
+#include <dxgidebug.h>
 
 // We will use the C standard library just for printing error messages.
 #include <stdio.h>
@@ -836,6 +837,38 @@ D3D12_RESOURCE_STATES D3DUtil::getResourceState(ResourceState state)
     }
 }
 
+/* static */SlangResult D3DUtil::reportLiveObjects()
+{
+    static IDXGIDebug* dxgiDebug = nullptr;
+
+    if (!dxgiDebug)
+    {
+        HMODULE debugModule = LoadLibraryA("dxgidebug.dll");
+        if (debugModule != INVALID_HANDLE_VALUE)
+        {
+            auto fun = reinterpret_cast<decltype(&DXGIGetDebugInterface)>(GetProcAddress(debugModule, "DXGIGetDebugInterface"));
+            if (fun)
+            {
+                fun(__uuidof(IDXGIDebug), (void**)&dxgiDebug);
+            }
+        }
+    }
+
+    if (dxgiDebug)
+    {
+        const GUID DXGI_DEBUG_ALL_ = { 0xe48ae283, 0xda80, 0x490b, { 0x87, 0xe6,  0x43,  0xe9,  0xa9,  0xcf,  0xda,  0x8 } };
+        dxgiDebug->ReportLiveObjects(DXGI_DEBUG_ALL_, DXGI_DEBUG_RLO_ALL);
+        return SLANG_OK;
+    }
+
+    return SLANG_E_NOT_AVAILABLE;
+}
+
+Result SLANG_MCALL reportD3DLiveObjects()
+{
+    return D3DUtil::reportLiveObjects();
+}
+
 /* static */SlangResult D3DUtil::findAdapters(DeviceCheckFlags flags, const AdapterLUID* adapterLUID, IDXGIFactory* dxgiFactory, List<ComPtr<IDXGIAdapter>>& outDxgiAdapters)
 {
     outDxgiAdapters.clear();
-- 
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