Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROGeometryElement.h

@@ -0,0 +1,94 @@
+//
+//  VROGeometryElement.h
+//  ViroRenderer
+//
+//  Created by Raj Advani on 11/17/15.
+//  Copyright © 2015 Viro Media. All rights reserved.
+//
+
+#ifndef VROGeometryElement_h
+#define VROGeometryElement_h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory>
+#include <functional>
+#include "VROData.h"
+#include "VROTriangle.h"
+
+class VROGeometrySource;
+
+enum class VROGeometryPrimitiveType {
+    Triangle,
+    TriangleStrip,
+    Line,
+    Point
+};
+
+/*
+ Describes how vertices are connected to form the surface of a three-dimensional object, or geometry.
+ Used in conjunction with VROGeometrySource.
+ */
+class VROGeometryElement {
+    
+public:
+    
+    VROGeometryElement(std::shared_ptr<VROData> data,
+                       VROGeometryPrimitiveType primitiveType,
+                       int primitiveCount,
+                       int bytesPerIndex) :
+        _primitiveType(primitiveType),
+        _primitiveCount(primitiveCount),
+        _data(data),
+        _bytesPerIndex(bytesPerIndex)
+    {}
+    
+    std::shared_ptr<VROData> getData() const {
+        return _data;
+    }
+    VROGeometryPrimitiveType getPrimitiveType() const {
+        return _primitiveType;
+    }
+    int getPrimitiveCount() const {
+        return _primitiveCount;
+    }
+    int getBytesPerIndex() const {
+        return _bytesPerIndex;
+    }
+    
+    /*
+     Read through the indices in this element, read the corresponding vertices
+     from the given geometry source, and invoke the provided function once per
+     triangle.
+     */
+    void processTriangles(std::function<void(int index, VROTriangle triangle)> function,
+                          std::shared_ptr<VROGeometrySource> geometrySource) const;
+    
+    /*
+     Read the indexes in this element, one by one.
+     */
+    void processIndices(std::function<void(int index, int indexRead)> function) const;
+    
+private:
+    
+    /*
+     The type of the primitives we should create from the associated geometry
+     source using the indices in this element.
+     */
+    VROGeometryPrimitiveType _primitiveType;
+    
+    /*
+     The number of triangles, triangle strips, etc.
+     */
+    const int _primitiveCount;
+    
+    /*
+     The index data, and the size of each index.
+     */
+    std::shared_ptr<VROData> _data;
+    const int _bytesPerIndex;
+    
+};
+
+#endif /* VROGeometryElement_h */