star-2d

Contour structuring for efficient 2D geometric queries
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s2d_geometry.c (2384B)

      1 /* Copyright (C) 2016-2021, 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 "s2d_device_c.h"
     17 #include "s2d_geometry.h"
     18 #include "s2d_line_segments.h"
     19 
     20 #include <rsys/mem_allocator.h>
     21 
     22 /*******************************************************************************
     23  * Helper functions
     24  ******************************************************************************/
     25 static void
     26 geometry_release(ref_T* ref)
     27 {
     28   struct geometry* geom;
     29   struct s2d_device* dev;
     30 
     31   geom = CONTAINER_OF(ref, struct geometry, ref);
     32   dev = geom->dev;
     33   if(geom->lines) line_segments_ref_put(geom->lines);
     34   MEM_RM(dev->allocator, geom);
     35   S2D(device_ref_put(dev));
     36 }
     37 
     38 /*******************************************************************************
     39  * Non exported functions
     40  ******************************************************************************/
     41 res_T
     42 geometry_create(struct s2d_device* dev, struct geometry** out_geom)
     43 {
     44   struct geometry* geom = NULL;
     45   res_T res = RES_OK;
     46   ASSERT(dev && out_geom);
     47 
     48   geom = (struct geometry*)MEM_CALLOC
     49     (dev->allocator, 1, sizeof(struct geometry));
     50   if(!geom) {
     51     res = RES_MEM_ERR;
     52     goto error;
     53   }
     54   ref_init(&geom->ref);
     55   S2D(device_ref_get(dev));
     56   geom->dev = dev;
     57   geom->name = S2D_INVALID_ID;
     58   geom->rtc = NULL;
     59   geom->rtc_id = RTC_INVALID_GEOMETRY_ID;
     60   geom->embree_outdated_mask = 0;
     61   geom->flip_contour = 0;
     62   geom->is_enabled = 1;
     63   geom->lines = NULL;
     64 
     65 exit:
     66   *out_geom = geom;
     67   return res;
     68 error:
     69   if(geom) {
     70     geometry_ref_put(geom);
     71     geom = NULL;
     72   }
     73   goto exit;
     74 }
     75 
     76 void
     77 geometry_ref_get(struct geometry* geom)
     78 {
     79   ASSERT(geom);
     80   ref_get(&geom->ref);
     81 }
     82 
     83 void
     84 geometry_ref_put(struct geometry* geom)
     85 {
     86   ASSERT(geom);
     87   ref_put(&geom->ref, geometry_release);
     88 }
     89