[d3d11] Return error when mapping an already mapped image

Final Fantasy XIV does this. Should avoid some unnecessary work.
doitsujin · Jul 5, 2019 · 1cc531e · 1cc531e
1 parent 2f64f5b
commit 1cc531e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/d3d11/d3d11_context_imm.cpp b/src/d3d11/d3d11_context_imm.cpp
@@ -334,6 +334,9 @@ namespace dxvk {
     if (unlikely(Subresource >= pResource->CountSubresources()))
       return E_INVALIDARG;
 
+    if (unlikely(pResource->GetMapType(Subresource) != D3D11_MAP(~0u)))
+      return E_OUTOFMEMORY;
+
     pResource->SetMapType(Subresource, MapType);
 
     VkFormat packedFormat = m_parent->LookupPackedFormat(