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diff --git a/intern/opensubdiv/internal/evaluator/eval_output_gpu.h b/intern/opensubdiv/internal/evaluator/eval_output_gpu.h
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+++ b/intern/opensubdiv/internal/evaluator/eval_output_gpu.h
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+// Copyright 2021 Blender Foundation. All rights reserved.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software Foundation,
+// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+//
+// Author: Sergey Sharybin
+
+#ifndef OPENSUBDIV_EVAL_OUTPUT_GPU_H_
+#define OPENSUBDIV_EVAL_OUTPUT_GPU_H_
+
+#include "internal/evaluator/eval_output.h"
+
+#include <opensubdiv/osd/glComputeEvaluator.h>
+#include <opensubdiv/osd/glPatchTable.h>
+#include <opensubdiv/osd/glVertexBuffer.h>
+
+using OpenSubdiv::Osd::GLComputeEvaluator;
+using OpenSubdiv::Osd::GLStencilTableSSBO;
+using OpenSubdiv::Osd::GLVertexBuffer;
+
+namespace blender {
+namespace opensubdiv {
+
+class GpuEvalOutput : public VolatileEvalOutput<GLVertexBuffer,
+                                                GLVertexBuffer,
+                                                GLStencilTableSSBO,
+                                                GLPatchTable,
+                                                GLComputeEvaluator> {
+ public:
+  GpuEvalOutput(const StencilTable *vertex_stencils,
+                const StencilTable *varying_stencils,
+                const vector<const StencilTable *> &all_face_varying_stencils,
+                const int face_varying_width,
+                const PatchTable *patch_table,
+                EvaluatorCache *evaluator_cache = NULL);
+
+  void fillPatchArraysBuffer(OpenSubdiv_Buffer *patch_arrays_buffer) override;
+
+  void wrapPatchIndexBuffer(OpenSubdiv_Buffer *patch_index_buffer) override;
+
+  void wrapPatchParamBuffer(OpenSubdiv_Buffer *patch_param_buffer) override;
+
+  void wrapSrcBuffer(OpenSubdiv_Buffer *src_buffer) override;
+
+  void fillFVarPatchArraysBuffer(const int face_varying_channel,
+                                 OpenSubdiv_Buffer *patch_arrays_buffer) override;
+
+  void wrapFVarPatchIndexBuffer(const int face_varying_channel,
+                                OpenSubdiv_Buffer *patch_index_buffer) override;
+
+  void wrapFVarPatchParamBuffer(const int face_varying_channel,
+                                OpenSubdiv_Buffer *patch_param_buffer) override;
+
+  void wrapFVarSrcBuffer(const int face_varying_channel, OpenSubdiv_Buffer *src_buffer) override;
+};
+
+}  // namespace opensubdiv
+}  // namespace blender
+
+#endif  // OPENSUBDIV_EVAL_OUTPUT_GPU_H_