[d3d9] Forbid StretchRect for src == dst

Matches documentation and test behaviour
misyltoad · Dec 16, 2019 · 17c9533 · 17c9533
1 parent 35751fd
commit 17c9533
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/d3d9/d3d9_device.cpp b/src/d3d9/d3d9_device.cpp
@@ -862,6 +862,9 @@ namespace dxvk {
     if (unlikely(src == nullptr || dst == nullptr))
       return D3DERR_INVALIDCALL;
 
+    if (unlikely(src == dst))
+      return D3DERR_INVALIDCALL;
+
     bool fastPath = true;
 
     D3D9CommonTexture* dstTextureInfo = dst->GetCommonTexture();