--- /dev/null
+#ifndef TANGRAM_SHAPES_H
+#define TANGRAM_SHAPES_H
+
+/* get_sm_tri_dl - Get small triangle Display List */
+GLuint get_sm_tri_dl(int wire);
+/* get_lg_tri_dl - Get large triangle Display List */
+GLuint get_lg_tri_dl(int wire);
+/* get_md_tri_dl - Get medium triangle Display List */
+GLuint get_md_tri_dl(int wire);
+/* get_square_dl - Get square Display List */
+GLuint get_square_dl(int wire);
+/* get_rhomboid_dl - Get rhomboid Display List */
+GLuint get_rhomboid_dl(int wire);
+
+#endif