Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/d3d11PatchTable.h

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+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV3_OSD_GL_PATCH_TABLE_H
+#define OPENSUBDIV3_OSD_GL_PATCH_TABLE_H
+
+#include "../version.h"
+
+#include <vector>
+#include "../far/patchDescriptor.h"
+#include "../osd/nonCopyable.h"
+#include "../osd/types.h"
+
+struct ID3D11Buffer;
+struct ID3D11ShaderResourceView;
+struct ID3D11Device;
+struct ID3D11DeviceContext;
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Far{
+    class PatchTable;
+};
+
+namespace Osd {
+
+class D3D11PatchTable : private NonCopyable<D3D11PatchTable> {
+public:
+    using VertexBufferBinding = ID3D11Buffer*;  // buffer binding type
+
+    D3D11PatchTable();
+    ~D3D11PatchTable();
+
+    template<typename DEVICE_CONTEXT>
+    static D3D11PatchTable *Create(Far::PatchTable const *farPatchTable,
+                                   DEVICE_CONTEXT context) {
+        return Create(farPatchTable, context->GetDeviceContext());
+    }
+
+    static D3D11PatchTable *Create(Far::PatchTable const *farPatchTable,
+                                   ID3D11DeviceContext *deviceContext);
+
+    PatchArrayVector const &GetPatchArrays() const {
+        return _patchArrays;
+    }
+
+    /// Returns the index buffer containing the patch control vertices
+    ID3D11Buffer* GetPatchIndexBuffer() const {
+        return _indexBuffer;
+    }
+
+    /// Returns the SRV containing the patch parameter
+    ID3D11ShaderResourceView* GetPatchParamSRV() const {
+        return _patchParamBufferSRV;
+    }
+
+protected:
+    // allocate buffers from patchTable
+    bool allocate(Far::PatchTable const *farPatchTable,
+                  ID3D11DeviceContext *deviceContext);
+
+    PatchArrayVector _patchArrays;
+
+    ID3D11Buffer             *_indexBuffer;
+    ID3D11Buffer             *_patchParamBuffer;
+    ID3D11ShaderResourceView *_patchParamBufferSRV;
+};
+
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+using namespace OPENSUBDIV_VERSION;
+
+}  // end namespace OpenSubdiv
+
+#endif  // OPENSUBDIV3_OSD_GL_PATCH_TABLE_H