star-3d

Surface structuring for efficient 3D geometric queries
git clone git://git.meso-star.fr/star-3d.git
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s3d_sphere.c (2097B)

      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 #include "s3d_device_c.h"
     17 #include "s3d_sphere.h"
     18 
     19 /*******************************************************************************
     20  * Helper functions
     21  ******************************************************************************/
     22 static void
     23 sphere_release(ref_T* ref)
     24 {
     25   struct sphere* sphre;
     26   struct s3d_device* dev;
     27   ASSERT(ref);
     28 
     29   sphre = CONTAINER_OF(ref, struct sphere, ref);
     30   dev = sphre->dev;
     31   MEM_RM(dev->allocator, sphre);
     32   S3D(device_ref_put(dev));
     33 }
     34 
     35 /*******************************************************************************
     36  * Local functions
     37  ******************************************************************************/
     38 res_T
     39 sphere_create(struct s3d_device* dev, struct sphere** out_sphere)
     40 {
     41   struct sphere* sphere = NULL;
     42   res_T res = RES_OK;
     43   ASSERT(dev && out_sphere);
     44 
     45   sphere = (struct sphere*)MEM_CALLOC(dev->allocator, 1, sizeof(struct sphere));
     46   if(!sphere) {
     47     res = RES_MEM_ERR;
     48     goto error;
     49   }
     50   ref_init(&sphere->ref);
     51   S3D(device_ref_get(dev));
     52   sphere->dev = dev;
     53   sphere->radius = -1;
     54 
     55 exit:
     56   *out_sphere = sphere;
     57   return res;
     58 error:
     59   if(sphere) {
     60     sphere_ref_put(sphere);
     61     sphere = NULL;
     62   }
     63   goto exit;
     64 }
     65 
     66 void
     67 sphere_ref_get(struct sphere* sphere)
     68 {
     69   ASSERT(sphere);
     70   ref_get(&sphere->ref);
     71 }
     72 
     73 void
     74 sphere_ref_put(struct sphere* sphere)
     75 {
     76   ASSERT(sphere);
     77   ref_put(&sphere->ref, sphere_release);
     78 }
     79