From af9b9be76dce11e701db55abc6523d87dc5e4d41 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Tue, 7 Dec 2021 21:29:05 +0900
Subject: [PATCH] d3d11memory: Inform subresource index via
 GstMapInfo::user_data

By using this way, caller does not need to call another method
gst_d3d11_memory_get_subresource_index()

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1408>
---
 .../gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp      | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp b/subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp
index 417015f6cd..f1f55ab2e6 100644
--- a/subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp
+++ b/subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11memory.cpp
@@ -381,6 +381,9 @@ gst_d3d11_memory_map_full (GstMemory * mem, GstMapInfo * info, gsize maxsize)
   gst_d3d11_device_lock (dmem->device);
   GST_D3D11_MEMORY_LOCK (dmem);
 
+  memset (info->user_data, 0, sizeof (info->user_data));
+  info->user_data[0] = GUINT_TO_POINTER (dmem->priv->subresource_index);
+
   if ((flags & GST_MAP_D3D11) == GST_MAP_D3D11) {
     if (priv->native_type == GST_D3D11_MEMORY_NATIVE_TYPE_BUFFER) {
       /* FIXME: handle non-staging buffer */