star-geometry-3d

Clean and decorate 3D geometries
git clone git://git.meso-star.fr/star-geometry-3d.git
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test_sg3d_cube_behind_cube.c (4612B)


      1 /* Copyright (C) 2019, 2020, 2023, 2024 |Méso|Star> (contact@meso-star.com)
      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 "sg3d.h"
     17 #include "test_sg3d_utils.h"
     18 
     19 #include <rsys/double3.h>
     20 
     21 #include <stdio.h>
     22 
     23 /*
     24               cube_2                           cube_3
     25 
     26                                        +-----------------------+
     27                                        |                       3
     28                                        |                       |
     29                                     m1 | m0                    |
     30                                        |                       |
     31                                        |                       |
     32                                        |                       |
     33                                        |                       |--> N
     34                                        |                       |
     35                                        |                       |
     36                                        +-----------------------+
     37            +------------+                   +------------+
     38            |            2                   |            2
     39         m0 | m1         |                m0 | m1         |
     40            |            |                   |            |
     41            |            |--> N              |            |--> N
     42            |            |                   |            |
     43            +------------+                   +------------+
     44               +-----+                          +-----+
     45            m0 | m1  1                       m0 | m1  1
     46               |     |--> N                     |     |--> N
     47               +-----+                          +-----+
     48  */
     49 
     50 int
     51 main(int argc, char** argv)
     52 {
     53   struct mem_allocator allocator;
     54   struct sg3d_device* dev;
     55   struct sg3d_geometry* geom;
     56   struct context ctx = CONTEXT_NULL__;
     57   struct sg3d_geometry_add_callbacks callbacks = SG3D_ADD_CALLBACKS_NULL__;
     58   unsigned count;
     59   (void)argc, (void)argv;
     60 
     61   OK(mem_init_proxy_allocator(&allocator, &mem_default_allocator));
     62   OK(sg3d_device_create(NULL, &allocator, 1, &dev));
     63   OK(sg3d_geometry_create(dev, &geom));
     64   SG3D(device_ref_put(dev));
     65 
     66   callbacks.get_indices = get_indices;
     67   callbacks.get_properties = get_properties;
     68   callbacks.get_position = get_position;
     69 
     70   ctx.positions = box_vertices;
     71   ctx.indices = cube_indices;
     72   ctx.front_media = medium0;
     73   ctx.back_media = medium1;
     74   ctx.intface = intface0;
     75 
     76   /* First cube (front: 0, back: 1), right-handed normal outside */
     77   OK(sg3d_geometry_add(geom, nvertices, ntriangles, &callbacks, &ctx));
     78 
     79   d3(ctx.offset, -2, -2, 20);
     80   d3_splat(ctx.scale, 5);
     81 
     82   /* Second cube (front: 0, back: 1), right-handed normal outside */
     83   OK(sg3d_geometry_add(geom, nvertices, ntriangles, &callbacks, &ctx));
     84 
     85   OK(sg3d_geometry_get_unique_triangles_with_merge_conflict_count(geom, &count));
     86   CHK(count == 0);
     87   OK(sg3d_geometry_get_unique_triangles_with_unspecified_interface_count(geom, &count));
     88   CHK(count == 0);
     89   OK(sg3d_geometry_get_unique_triangles_with_unspecified_side_count(geom, &count));
     90   CHK(count == 0);
     91   OK(sg3d_geometry_dump_as_c_code(geom, stdout, "cube_behind_cube_2",
     92     SG3D_C_DUMP_CONST | SG3D_C_DUMP_STATIC));
     93 
     94   d3(ctx.offset, -3, -3, 30);
     95   d3_splat(ctx.scale, 7);
     96   ctx.front_media = medium1;
     97   ctx.back_media = medium0;
     98 
     99   /* Third cube (front: 1, back: 0), right-handed normal outside */
    100   OK(sg3d_geometry_add(geom, nvertices, ntriangles, &callbacks, &ctx));
    101 
    102   OK(sg3d_geometry_get_unique_triangles_with_merge_conflict_count(geom, &count));
    103   CHK(count == 0);
    104   OK(sg3d_geometry_get_unique_triangles_with_unspecified_interface_count(geom, &count));
    105   CHK(count == 0);
    106   OK(sg3d_geometry_get_unique_triangles_with_unspecified_side_count(geom, &count));
    107   CHK(count == 0);
    108   OK(sg3d_geometry_dump_as_c_code(geom, stdout, "cube_behind_cube_3",
    109     SG3D_C_DUMP_CONST | SG3D_C_DUMP_STATIC));
    110 
    111   SG3D(geometry_ref_put(geom));
    112 
    113   check_memory_allocator(&allocator);
    114   mem_shutdown_proxy_allocator(&allocator);
    115   CHK(mem_allocated_size() == 0);
    116   return 0;
    117 }