s3d_mesh.h (2884B)
1 /* Copyright (C) 2015-2023 |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 #ifndef S3D_MESH_H 17 #define S3D_MESH_H 18 19 #include "s3d_c.h" 20 21 #include "s3d_buffer.h" 22 #include "s3d_geometry.h" 23 24 #include <rsys/dynamic_array_u32.h> 25 #include <rsys/dynamic_array_float.h> 26 #include <rsys/ref_count.h> 27 28 /* Generate the index buffer data type */ 29 #define BUFFER_NAME index_buffer 30 #define BUFFER_DARRAY darray_u32 31 #include "s3d_buffer.h" 32 33 /* Generate the vertex buffer data type */ 34 #define BUFFER_NAME vertex_buffer 35 #define BUFFER_DARRAY darray_float 36 #include "s3d_buffer.h" 37 38 struct mesh { /* Triangular mesh */ 39 struct index_buffer* indices; 40 struct vertex_buffer* attribs[S3D_ATTRIBS_COUNT__]; 41 enum s3d_type attribs_type[S3D_ATTRIBS_COUNT__]; 42 struct darray_float cdf; 43 struct hit_filter filter; 44 45 struct s3d_device* dev; 46 ref_T ref; 47 }; 48 49 extern LOCAL_SYM res_T 50 mesh_create 51 (struct s3d_device* dev, 52 struct mesh** mesh); 53 54 extern LOCAL_SYM void 55 mesh_ref_get 56 (struct mesh* mesh); 57 58 extern LOCAL_SYM void 59 mesh_ref_put 60 (struct mesh* mesh); 61 62 extern LOCAL_SYM void 63 mesh_clear 64 (struct mesh* mesh); 65 66 extern LOCAL_SYM size_t 67 mesh_get_ntris 68 (const struct mesh* mesh); 69 70 extern LOCAL_SYM size_t 71 mesh_get_nverts 72 (const struct mesh* mesh); 73 74 extern LOCAL_SYM uint32_t* 75 mesh_get_ids 76 (struct mesh* mesh); 77 78 extern LOCAL_SYM float* 79 mesh_get_pos 80 (struct mesh* mesh); 81 82 extern LOCAL_SYM float* 83 mesh_get_attr 84 (struct mesh* mesh, 85 const enum s3d_attrib_usage usage); 86 87 extern LOCAL_SYM float 88 mesh_compute_area 89 (struct mesh* mesh); 90 91 /* Compute mesh CDF */ 92 extern LOCAL_SYM res_T 93 mesh_compute_cdf 94 (struct mesh* mesh); 95 96 extern LOCAL_SYM float 97 mesh_compute_volume 98 (struct mesh* mesh, 99 const char flip_surface); /* Flip the shape surface or not */ 100 101 extern LOCAL_SYM res_T 102 mesh_setup_indexed_vertices 103 (struct mesh* mesh, 104 const unsigned ntris, 105 void (*get_indices)(const unsigned itri, unsigned ids[3], void* ctx), 106 const unsigned nverts, 107 struct s3d_vertex_data attribs[], 108 const unsigned nattribs, 109 void* data); 110 111 extern LOCAL_SYM void 112 mesh_compute_aabb 113 (struct mesh* mesh, 114 float lower[3], 115 float upper[3]); 116 117 extern LOCAL_SYM void 118 mesh_copy_indexed_vertices 119 (const struct mesh* src, 120 struct mesh* dst); 121 122 #endif /* S3D_MESH_H */ 123