Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/examples/common/glControlMeshDisplay.h

@@ -0,0 +1,51 @@
+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV_EXAMPLES_GL_CONTROL_MESH_DISPLAY_H
+#define OPENSUBDIV_EXAMPLES_GL_CONTROL_MESH_DISPLAY_H
+
+#include "glLoader.h"
+
+#include <opensubdiv/far/topologyLevel.h>
+
+class GLControlMeshDisplay {
+public:
+    GLControlMeshDisplay();
+    ~GLControlMeshDisplay();
+
+    void Draw(GLuint pointsVBO, GLint stride,
+              const float *modelViewProjectionMatrix);
+
+    void SetTopology(OpenSubdiv::Far::TopologyLevel const &level);
+
+    bool GetEdgesDisplay() const { return _displayEdges; }
+    void SetEdgesDisplay(bool display) { _displayEdges = display; }
+    bool GetVerticesDisplay() const { return _displayVertices; }
+    void SetVerticesDisplay(bool display) { _displayVertices = display; }
+
+private:
+    bool createProgram();
+
+    bool _displayEdges;
+    bool _displayVertices;
+
+    GLuint _program;
+    GLuint _uniformMvpMatrix;
+    GLuint _uniformDrawMode;
+    GLuint _uniformEdgeSharpness;
+    GLuint _attrPosition;
+    GLuint _attrVertSharpness;
+
+    GLuint _vao;
+    GLuint _vertSharpness;
+    GLuint _edgeSharpnessTexture;
+    GLuint _edgeIndices;
+
+    int _numEdges, _numPoints;
+};
+
+#endif  // OPENSUBDIV_EXAMPLES_GL_CONTROL_MESH_DISPLAY_H