move vtm/jni to separate c project

jni/tessellate/tessellate.h

@@ -0,0 +1,42 @@
+#include "glu.h"
+
+typedef struct Triangle {
+   int v[3];
+   struct Triangle *prev;
+} Triangle;
+
+typedef struct Vertex {
+    double pt[3];
+    int index;
+    struct Vertex *prev;
+} Vertex;
+
+typedef struct TessContext {
+   Triangle *latest_t;
+   int n_tris;
+   int reversed;
+
+   Vertex *v_prev;
+   Vertex *v_prevprev;
+   Vertex *latest_v;
+   GLenum current_mode;
+   int odd_even_strip;
+
+   void (*vertex_cb)(Vertex *, struct TessContext *);
+} TessContext;
+
+TessContext *tessellateD
+    (double **verts,
+     int *nverts,
+     int **tris,
+     int *ntris,
+     const double **contoursbegin,
+     const double **contoursend);
+
+TessContext *tessellate
+    (float **verts,
+     int *nverts,
+     int **tris,
+     int *ntris,
+     const float **contoursbegin,
+     const float **contoursend);