star-sf

Set of surface and volume scattering functions
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test_ssf_fresnel.c (4468B)


      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 #include "ssf.h"
     17 #include "test_ssf_utils.h"
     18 
     19 static int fresnel_is_init = 0;
     20 
     21 struct ALIGN(64) fresnel {
     22   uint32_t id;
     23   double cos_theta;
     24   double value;
     25 };
     26 
     27 static res_T
     28 fresnel_init(struct mem_allocator* allocator, void* fresnel)
     29 {
     30   CHK(allocator != NULL);
     31   CHK(fresnel != NULL);
     32   CHK(IS_ALIGNED(fresnel, 64) == 1);
     33   ((struct fresnel*)fresnel)->id = 0xDECAFBAD;
     34   fresnel_is_init = 1;
     35   return RES_OK;
     36 }
     37 
     38 static void
     39 fresnel_release(void* fresnel)
     40 {
     41   CHK(fresnel != NULL);
     42   CHK(((struct fresnel*)fresnel)->id == 0xDECAFBAD);
     43   fresnel_is_init = 0;
     44 }
     45 
     46 static double
     47 fresnel_eval(void* fresnel, const double cos_theta)
     48 {
     49   struct fresnel* f = fresnel;
     50   CHK(f != NULL);
     51   CHK(f->id == 0xDECAFBAD);
     52   CHK(f->cos_theta == cos_theta);
     53   return f->value;
     54 }
     55 
     56 int
     57 main(int argc, char** argv)
     58 {
     59   struct mem_allocator allocator;
     60   struct fresnel* data;
     61   struct ssf_fresnel* fresnel;
     62   struct ssf_fresnel_type type = SSF_FRESNEL_TYPE_NULL;
     63   struct ssf_fresnel_type type2 = fresnel_dummy;
     64   (void)argc, (void)argv;
     65 
     66   mem_init_proxy_allocator(&allocator, &mem_default_allocator);
     67 
     68   type.init = fresnel_init;
     69   type.release = fresnel_release;
     70   type.eval = fresnel_eval;
     71   type.sizeof_fresnel = sizeof(struct fresnel);
     72   type.alignof_fresnel = ALIGNOF(struct fresnel);
     73 
     74   CHK(ssf_fresnel_create(NULL, NULL, NULL) == RES_BAD_ARG);
     75 
     76   CHK(ssf_fresnel_create(NULL, NULL, NULL) == RES_BAD_ARG);
     77   CHK(ssf_fresnel_create(&allocator, NULL, NULL) == RES_BAD_ARG);
     78   CHK(ssf_fresnel_create(NULL, &type, NULL) == RES_BAD_ARG);
     79   CHK(ssf_fresnel_create(&allocator, &type, NULL) == RES_BAD_ARG);
     80   CHK(ssf_fresnel_create(NULL, NULL, &fresnel) == RES_BAD_ARG);
     81   CHK(ssf_fresnel_create(&allocator, NULL, &fresnel) == RES_BAD_ARG);
     82 
     83   CHK(fresnel_is_init == 0);
     84   CHK(ssf_fresnel_create(NULL, &type, &fresnel) == RES_OK);
     85   CHK(fresnel_is_init == 1);
     86 
     87   CHK(ssf_fresnel_ref_get(NULL) == RES_BAD_ARG);
     88   CHK(ssf_fresnel_ref_get(fresnel) == RES_OK);
     89   CHK(ssf_fresnel_ref_put(NULL) == RES_BAD_ARG);
     90   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
     91   CHK(fresnel_is_init == 1);
     92   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
     93   CHK(fresnel_is_init == 0);
     94 
     95   CHK(ssf_fresnel_create(&allocator, &type, &fresnel) == RES_OK);
     96   CHK(fresnel_is_init == 1);
     97   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
     98   CHK(fresnel_is_init == 0);
     99 
    100   type2.init = NULL;
    101   CHK(ssf_fresnel_create(&allocator, &type2, &fresnel) == RES_OK);
    102   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
    103   type2.init = fresnel_dummy.init;
    104   CHK(ssf_fresnel_create(&allocator, &type2, &fresnel) == RES_OK);
    105   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
    106     
    107   type.eval = NULL;
    108   CHK(ssf_fresnel_create(&allocator, &type, &fresnel) == RES_BAD_ARG);
    109   CHK(fresnel_is_init == 0);
    110   type.eval = fresnel_eval;
    111   type.alignof_fresnel = 0;
    112   CHK(ssf_fresnel_create(&allocator, &type, &fresnel) == RES_BAD_ARG);
    113   CHK(fresnel_is_init == 0);
    114   type.alignof_fresnel = ALIGNOF(struct fresnel);
    115   CHK(ssf_fresnel_create(&allocator, &type, &fresnel) == RES_OK);
    116   CHK(fresnel_is_init == 1);
    117 
    118   CHK(ssf_fresnel_get_data(NULL, NULL) == RES_BAD_ARG);
    119   CHK(ssf_fresnel_get_data(fresnel, NULL) == RES_BAD_ARG);
    120   CHK(ssf_fresnel_get_data(NULL, (void**)&data) == RES_BAD_ARG);
    121   CHK(ssf_fresnel_get_data(fresnel, (void**)&data) == RES_OK);
    122 
    123   CHK(data->id == 0xDECAFBAD);
    124   data->cos_theta = 0.1;
    125   data->value = 1.234;
    126 
    127   CHK(ssf_fresnel_eval(fresnel, 0.1) == data->value);
    128   data->cos_theta = 1.234;
    129   data->value = 8.1;
    130   CHK(ssf_fresnel_eval(fresnel, 1.234) == data->value);
    131 
    132   CHK(fresnel_is_init == 1);
    133   CHK(ssf_fresnel_ref_put(fresnel) == RES_OK);
    134   CHK(fresnel_is_init == 0);
    135 
    136   check_memory_allocator(&allocator);
    137   mem_shutdown_proxy_allocator(&allocator);
    138   CHK(mem_allocated_size() == 0);
    139   return 0;
    140 }
    141