star-sf

Set of surface and volume scattering functions
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test_ssf_fresnel_constant.c (2340B)


      1 /* Copyright (C) 2016-2018, 2021-2025 |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 #define _POSIX_C_SOURCE 200112L /* nextafter support */
     17 
     18 #include "ssf.h"
     19 #include "test_ssf_utils.h"
     20 
     21 int
     22 main(int argc, char** argv)
     23 {
     24   struct mem_allocator allocator;
     25   struct ssf_fresnel* fresnel;
     26   struct ssf_fresnel* dummy;
     27   (void)argc, (void)argv;
     28 
     29   mem_init_proxy_allocator(&allocator, &mem_default_allocator);
     30   CHK(ssf_fresnel_create(&allocator, &ssf_fresnel_constant, &fresnel) == RES_OK);
     31   CHK(ssf_fresnel_create(&allocator, &fresnel_dummy, &dummy) == RES_OK);
     32 
     33   CHK(ssf_fresnel_constant_setup(NULL, -1) == RES_BAD_ARG);
     34   CHK(ssf_fresnel_constant_setup(fresnel, -1) == RES_BAD_ARG);
     35   CHK(ssf_fresnel_constant_setup(NULL, 0.5) == RES_BAD_ARG);
     36   CHK(ssf_fresnel_constant_setup(fresnel, 0) == RES_OK);
     37   CHK(ssf_fresnel_constant_setup(fresnel, 1) == RES_OK);
     38   CHK(ssf_fresnel_constant_setup(fresnel, 0.5) == RES_OK);
     39   CHK(ssf_fresnel_constant_setup(fresnel, nextafter(0, -1)) == RES_BAD_ARG);
     40   CHK(ssf_fresnel_constant_setup(fresnel, nextafter(1, 2)) == RES_BAD_ARG);
     41   CHK(ssf_fresnel_constant_setup(dummy, 0.5) == RES_BAD_ARG);
     42 
     43   CHK(ssf_fresnel_eval(fresnel, 0) == 0.5);
     44   CHK(ssf_fresnel_eval(fresnel, 1) == 0.5);
     45   CHK(ssf_fresnel_eval(fresnel, 0.1234) == 0.5);
     46   CHK(ssf_fresnel_constant_setup(fresnel, 0.123) == RES_OK);
     47   CHK(ssf_fresnel_eval(fresnel, 0) == 0.123);
     48   CHK(ssf_fresnel_eval(fresnel, 1) == 0.123);
     49   CHK(ssf_fresnel_eval(fresnel, 0.25) == 0.123);
     50 
     51   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
     52   CHK(ssf_fresnel_ref_put(dummy) == RES_OK);
     53 
     54   check_memory_allocator(&allocator);
     55   mem_shutdown_proxy_allocator(&allocator);
     56   CHK(mem_allocated_size() == 0);
     57   return 0;
     58 }