From a966cc20bc16f831433404dd7bb72cee2ab1d294 Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Sat, 16 May 2020 21:45:02 +0900
Subject: [PATCH] d3d11convert: Fix fallback texture copy

Fix texture copy when input texture has non-zero subresource index

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1275>
---
 sys/d3d11/gstd3d11colorconvert.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sys/d3d11/gstd3d11colorconvert.c b/sys/d3d11/gstd3d11colorconvert.c
index f73695c1ae..5cd29abfe8 100644
--- a/sys/d3d11/gstd3d11colorconvert.c
+++ b/sys/d3d11/gstd3d11colorconvert.c
@@ -1467,7 +1467,8 @@ gst_d3d11_color_convert_transform (GstBaseTransform * trans,
 
       ID3D11DeviceContext_CopySubresourceRegion (context_handle,
           (ID3D11Resource *) self->in_texture[i], 0, 0, 0, 0,
-          (ID3D11Resource *) d3d11_mem->texture, 0, NULL);
+          (ID3D11Resource *) d3d11_mem->texture, d3d11_mem->subresource_index,
+          NULL);
     }
     gst_d3d11_device_unlock (device);
   }
@@ -1520,8 +1521,8 @@ gst_d3d11_color_convert_transform (GstBaseTransform * trans,
       d3d11_mem = (GstD3D11Memory *) mem;
 
       ID3D11DeviceContext_CopySubresourceRegion (context_handle,
-          (ID3D11Resource *) d3d11_mem->texture, 0, 0, 0, 0,
-          (ID3D11Resource *) self->out_texture[i], 0, NULL);
+          (ID3D11Resource *) d3d11_mem->texture, d3d11_mem->subresource_index,
+          0, 0, 0, (ID3D11Resource *) self->out_texture[i], 0, NULL);
     }
     gst_d3d11_device_unlock (device);
   } else {