[d3d11] Validate buffer descriptions

src/d3d11/d3d11_buffer.cpp

@@ -198,6 +198,22 @@ namespace dxvk {
   }
 
 
+  HRESULT D3D11Buffer::ValidateBufferProperties(
+    const D3D11_BUFFER_DESC*      pDesc) {
+    // Basic validation for structured buffers
+    if ((pDesc->MiscFlags & D3D11_RESOURCE_MISC_BUFFER_STRUCTURED)
+     && ((pDesc->StructureByteStride == 0)
+      || (pDesc->StructureByteStride & 0x3)))
+      return E_INVALIDARG;
+
+    // Mip generation obviously doesn't work for buffers
+    if (pDesc->MiscFlags & D3D11_RESOURCE_MISC_GENERATE_MIPS)
+      return E_INVALIDARG;
+    
+    return S_OK;
+  }
+
+
   BOOL D3D11Buffer::CheckFormatFeatureSupport(
           VkFormat              Format,
           VkFormatFeatureFlags  Features) const {

src/d3d11/d3d11_buffer.h

@@ -112,6 +112,15 @@ namespace dxvk {
       return &m_d3d10;
     }
 
+    /**
+     * \brief Validates buffer description
+     * 
+     * \param [in] pDesc Buffer description
+     * \returns \c S_OK if the parameters are valid
+     */
+    static HRESULT ValidateBufferProperties(
+      const D3D11_BUFFER_DESC*      pDesc);
+
   private:
     
     const Com<D3D11Device>      m_device;

src/d3d11/d3d11_device.cpp

@@ -80,6 +80,9 @@ namespace dxvk {
     
     if (pDesc == nullptr)
       return E_INVALIDARG;
+    
+    if (FAILED(D3D11Buffer::ValidateBufferProperties(pDesc)))
+      return E_INVALIDARG;
 
     if (ppBuffer == nullptr)
       return S_FALSE;