void g3d_draw(int prim, const struct g3d_vertex *varr, int varr_size);
void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
const int16_t *iarr, int iarr_size);
void g3d_draw(int prim, const struct g3d_vertex *varr, int varr_size);
void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
const int16_t *iarr, int iarr_size);