[d3d9] Return empty buffer slice for out-of-bounds offsets

Fixes doitsujin#3715.
jamestiotio · Nov 14, 2023 · ea31498 · ea31498
1 parent 1cb58b0
commit ea31498
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/d3d9/d3d9_common_buffer.h b/src/d3d9/d3d9_common_buffer.h
@@ -125,7 +125,12 @@ namespace dxvk {
 
     template <D3D9_COMMON_BUFFER_TYPE Type>
     inline DxvkBufferSlice GetBufferSlice(VkDeviceSize offset, VkDeviceSize length) const {
-      return DxvkBufferSlice(GetBuffer<Type>(), offset, length);
+     if (likely(length && offset < m_desc.Size)) {
+        return DxvkBufferSlice(GetBuffer<Type>(), offset,
+          std::min<VkDeviceSize>(m_desc.Size - offset, length));
+     }
+
+      return DxvkBufferSlice();
     }
 
     inline DxvkBufferSliceHandle AllocMapSlice() {