From 2c3f3c0cb6dd7df572ad4c85fa8fe9752cf34879 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Tue, 9 Jan 2024 19:45:16 +0900
Subject: [PATCH] d3d12device: Print live objects on finalize()

The report from debug layer can help tracing resource leak

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5895>
---
 .../sys/d3d12/gstd3d12device.cpp              | 38 +++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12device.cpp b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12device.cpp
index 52614eccad..2bd539ff46 100644
--- a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12device.cpp
+++ b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12device.cpp
@@ -83,6 +83,44 @@ struct _GstD3D12DevicePrivate
 
     gst_clear_object (&copy_ca_pool);
     gst_clear_object (&copy_cl_pool);
+
+    factory = nullptr;
+    adapter = nullptr;
+    d3d11on12 = nullptr;
+
+    if (info_queue && device) {
+      ComPtr <ID3D12DebugDevice> debug_dev;
+      device.As (&debug_dev);
+      if (debug_dev) {
+        debug_dev->ReportLiveDeviceObjects (D3D12_RLDO_DETAIL |
+            D3D12_RLDO_IGNORE_INTERNAL);
+
+        UINT64 num_msg = info_queue->GetNumStoredMessages ();
+        for (UINT64 i = 0; i < num_msg; i++) {
+          HRESULT hr;
+          SIZE_T msg_len;
+          D3D12_MESSAGE *msg;
+
+          hr = info_queue->GetMessage (i, nullptr, &msg_len);
+          if (FAILED (hr) || msg_len == 0)
+            continue;
+
+          msg = (D3D12_MESSAGE *) g_malloc0 (msg_len);
+          hr = info_queue->GetMessage (i, msg, &msg_len);
+          if (FAILED (hr) || msg_len == 0) {
+            g_free (msg);
+            continue;
+          }
+
+          gst_debug_log (gst_d3d12_sdk_debug, GST_LEVEL_INFO,
+              __FILE__, GST_FUNCTION, __LINE__, nullptr,
+              "D3D12InfoQueue: %s", msg->pDescription);
+          g_free (msg);
+        }
+
+        info_queue->ClearStoredMessages ();
+      }
+    }
   }
 
   ComPtr<ID3D12Device> device;