star-line

Structure for accelerating line importance sampling
git clone git://git.meso-star.fr/star-line.git
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sln_device.c (2938B)

      1 /* Copyright (C) 2022, 2026 |Méso|Star> (contact@meso-star.com)
      2  * Copyright (C) 2026 Université de Lorraine
      3  * Copyright (C) 2022 Centre National de la Recherche Scientifique
      4  * Copyright (C) 2022 Université Paul Sabatier
      5  *
      6  * This program is free software: you can redistribute it and/or modify
      7  * it under the terms of the GNU General Public License as published by
      8  * the Free Software Foundation, either version 3 of the License, or
      9  * (at your option) any later version.
     10  *
     11  * This program is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
     14  * GNU General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU General Public License
     17  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     18 
     19 #include "sln.h"
     20 #include "sln_device_c.h"
     21 
     22 /*******************************************************************************
     23  * Helper functions
     24  ******************************************************************************/
     25 static INLINE res_T
     26 check_sln_device_create_args(const struct sln_device_create_args* args)
     27 {
     28   return args ? RES_OK : RES_BAD_ARG;
     29 }
     30 
     31 static void
     32 release_sln_device(ref_T* ref)
     33 {
     34   struct sln_device* sln = CONTAINER_OF(ref, struct sln_device, ref);
     35   ASSERT(ref);
     36   if(sln->logger == &sln->logger__) logger_release(&sln->logger__);
     37   MEM_RM(sln->allocator, sln);
     38 }
     39 
     40 /*******************************************************************************
     41  * Exported functions
     42  ******************************************************************************/
     43 res_T
     44 sln_device_create
     45   (const struct sln_device_create_args* args,
     46    struct sln_device** out_sln)
     47 {
     48   struct mem_allocator* allocator = NULL;
     49   struct sln_device* sln = NULL;
     50   res_T res = RES_OK;
     51 
     52   if(!out_sln) { res = RES_BAD_ARG; goto error; }
     53   res = check_sln_device_create_args(args);
     54   if(res != RES_OK) goto error;
     55 
     56   allocator = args->allocator ? args->allocator : &mem_default_allocator;
     57   sln = MEM_CALLOC(allocator, 1, sizeof(*sln));
     58   if(!sln) {
     59     #define ERR_STR "Could not allocate the Star-Line data structure.\n"
     60     if(args->logger) {
     61       logger_print(args->logger, LOG_ERROR, ERR_STR);
     62     } else {
     63       fprintf(stderr, MSG_ERROR_PREFIX ERR_STR);
     64     }
     65     #undef ERR_STR
     66     res = RES_MEM_ERR;
     67     goto error;
     68   }
     69   ref_init(&sln->ref);
     70   sln->allocator = allocator;
     71   sln->verbose = args->verbose;
     72   sln->logger = args->logger ? args->logger : LOGGER_DEFAULT;
     73 
     74 exit:
     75   if(out_sln) *out_sln = sln;
     76   return res;
     77 error:
     78   if(sln) { SLN(device_ref_put(sln)); sln = NULL; }
     79   goto exit;
     80 }
     81 
     82 res_T
     83 sln_device_ref_get(struct sln_device* sln)
     84 {
     85   if(!sln) return RES_BAD_ARG;
     86   ref_get(&sln->ref);
     87   return RES_OK;
     88 }
     89 
     90 res_T
     91 sln_device_ref_put(struct sln_device* sln)
     92 {
     93   if(!sln) return RES_BAD_ARG;
     94   ref_put(&sln->ref, release_sln_device);
     95   return RES_OK;
     96 }