loader_aw

Load OBJ/MTL file formats
git clone git://git.meso-star.fr/loader_aw.git
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aw.c (3005B)

      1 /* Copyright (C) 2014-2017, 2020-2023 Vincent Forest (vaplv@free.fr)
      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 Lesser General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU Lesser General Public License
     14  * along with this program. If not, see <http://www.gnu.org/licenses/>. */
     15 
     16 #define _POSIX_C_SOURCE 200112L /* strtok_r support */
     17 
     18 #include "aw_c.h"
     19 #include <rsys/cstr.h>
     20 #include <rsys/logger.h>
     21 #include <rsys/mem_allocator.h>
     22 #include <string.h>
     23 
     24 /*******************************************************************************
     25  * Helper functions
     26  ******************************************************************************/
     27 static void
     28 print_info(const char* msg, void* ctx)
     29 {
     30   fprintf(stderr, "%s%s", ctx ? (const char*)ctx : "info: ", msg);
     31 }
     32 
     33 static void
     34 print_err(const char* msg, void* ctx)
     35 {
     36   fprintf(stderr, "%s%s", ctx ? (const char*)ctx : "error: ", msg);
     37 }
     38 
     39 static void
     40 print_warn(const char* msg, void* ctx)
     41 {
     42   fprintf(stderr, "%s%s", ctx ? (const char*)ctx : "warning: ", msg);
     43 }
     44 
     45 /*******************************************************************************
     46  * Local functions
     47  ******************************************************************************/
     48 res_T
     49 parse_doubleX
     50   (double* dblX,
     51    const unsigned int count_min,
     52    const unsigned int count_max,
     53    const double range_min,
     54    const double range_max,
     55    const double default_value,
     56    char** tk_ctx)
     57 {
     58   size_t i;
     59   ASSERT(dblX && count_min <= count_max && range_min <= range_max && tk_ctx);
     60   ASSERT(default_value >= range_min && default_value <= range_max);
     61 
     62   FOR_EACH(i, 0, count_max) {
     63     char* real = strtok_r(NULL, " \t", tk_ctx);
     64     res_T res = RES_OK;
     65 
     66     if(!real) break;
     67 
     68     res = cstr_to_double(real, dblX + i);
     69     if(res != RES_OK) return res;
     70 
     71     if(dblX[i] < range_min || dblX[i] > range_max)
     72       return RES_BAD_ARG;
     73   }
     74   if(i < count_min)
     75     return RES_BAD_ARG;
     76 
     77   FOR_EACH(i, i, count_max)
     78     dblX[i] = default_value;
     79 
     80   return RES_OK;
     81 }
     82 
     83 res_T
     84 setup_default_logger
     85   (struct mem_allocator* allocator,
     86    struct logger* logger,
     87    const char* prefix_info, /* May be NULL */
     88    const char* prefix_error, /* May be NULL */
     89    const char* prefix_warning) /* May be NULL */
     90 {
     91   res_T res = RES_OK;
     92   ASSERT(logger);
     93   res = logger_init(allocator, logger);
     94   if(res != RES_OK) return res;
     95   logger_set_stream(logger, LOG_OUTPUT, print_info, (void*)prefix_info);
     96   logger_set_stream(logger, LOG_ERROR, print_err, (void*)prefix_error);
     97   logger_set_stream(logger, LOG_WARNING, print_warn, (void*)prefix_warning);
     98   return RES_OK;
     99 }
    100 
    101