polygon

Polygon triangulation
git clone git://git.meso-star.fr/polygon.git
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test_polygon1.c (2123B)


      1 /* Copyright (C) 2014-2017, 2021-2023 Vincent Forest (vaplv@free.fr)
      2  *
      3  * This program is free software: you can redistribute it and/or modify
      4  * it under the terms of the GNU General Public License as published by
      5  * the Free Software Foundation, either version 3 of the License, or
      6  * (at your option) any later version.
      7  *
      8  * This program is distributed in the hope that it will be useful,
      9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     11  * GNU General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU General Public License
     14  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     15 
     16 #include "polygon.h"
     17 #include "test_polygon_utils.h"
     18 #include <rsys/mem_allocator.h>
     19 
     20 int
     21 main(int argc, char** argv)
     22 {
     23   struct mem_allocator allocator_proxy;
     24   struct polygon* poly;
     25   union { uint32_t i; float f; } ucast;
     26   float pos[3] = {0, 0, 0};
     27   const uint32_t* ids;
     28   uint32_t nids;
     29   (void)argc, (void)argv;
     30 
     31   CHK(mem_init_proxy_allocator(&allocator_proxy, &mem_default_allocator) == RES_OK);
     32 
     33   CHK(polygon_create(&allocator_proxy, &poly) == RES_OK);
     34 
     35   pos[0] = (ucast.i = 0xbeb504f3, ucast.f);
     36   pos[1] = (ucast.i = 0x3eb504f3, ucast.f);
     37   CHK(polygon_vertex_add(poly, pos) == RES_OK);
     38   pos[0] = (ucast.i = 0xbe977d76, ucast.f);
     39   pos[1] = (ucast.i = 0x3ec14031, ucast.f);
     40   CHK(polygon_vertex_add(poly, pos) == RES_OK);
     41   pos[0] = (ucast.i = 0xbe5dab96, ucast.f);
     42   pos[1] = (ucast.i = 0x3f05ca33, ucast.f);
     43   CHK(polygon_vertex_add(poly, pos) == RES_OK);
     44   pos[0] = (ucast.i = 0xbecccbef, ucast.f);
     45   pos[1] = (ucast.i = 0x3ecccbef, ucast.f);
     46   CHK(polygon_vertex_add(poly, pos) == RES_OK);
     47   pos[0] = (ucast.i = 0xbeb504f3, ucast.f);
     48   pos[1] = (ucast.i = 0x3eb504f3, ucast.f);
     49   CHK(polygon_vertex_add(poly, pos) == RES_OK);
     50 
     51   CHK(polygon_triangulate(poly, &ids, &nids) == RES_OK);
     52   CHK(nids == 6);
     53   CHK(polygon_ref_put(poly) == RES_OK);
     54 
     55   check_memory_allocator(&allocator_proxy);
     56   mem_shutdown_proxy_allocator(&allocator_proxy);
     57   CHK(mem_allocated_size() == 0);
     58   return 0;
     59 }