vrchess

annotate src/vr/opt.c @ 10:e3f0ca1d008a

added preliminary OpenHMD module
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 22 Aug 2014 20:11:15 +0300
parents 90abf4b93cc9
children
rev   line source
nuclear@8 1 #include <stdio.h>
nuclear@8 2 #include <stdlib.h>
nuclear@8 3 #include <string.h>
nuclear@8 4 #include <errno.h>
nuclear@8 5 #include "opt.h"
nuclear@8 6 #include "rbtree.h"
nuclear@8 7
nuclear@10 8 static void opt_del_func(struct rbnode *opt, void *cls)
nuclear@8 9 {
nuclear@8 10 free(opt);
nuclear@8 11 }
nuclear@8 12
nuclear@8 13 void *create_options(void)
nuclear@8 14 {
nuclear@8 15 struct rbtree *db = rb_create(RB_KEY_STRING);
nuclear@8 16 rb_set_delete_func(db, opt_del_func, 0);
nuclear@8 17 return db;
nuclear@8 18 }
nuclear@8 19
nuclear@8 20 void destroy_options(void *optdb)
nuclear@8 21 {
nuclear@8 22 rb_destroy(optdb);
nuclear@8 23 }
nuclear@8 24
nuclear@8 25 void set_option_int(void *optdb, const char *key, int val)
nuclear@8 26 {
nuclear@8 27 struct option *opt = malloc(sizeof *opt);
nuclear@8 28 if(!opt) {
nuclear@8 29 fprintf(stderr, "failed to set option: %s: %s\n", key, strerror(errno));
nuclear@8 30 return;
nuclear@8 31 }
nuclear@8 32 opt->type = OTYPE_INT;
nuclear@8 33 opt->ival = val;
nuclear@8 34 opt->fval = (float)val;
nuclear@8 35
nuclear@8 36 if(rb_insert(optdb, (void*)key, opt) == -1) {
nuclear@8 37 fprintf(stderr, "failed to set option: %s\n", key);
nuclear@8 38 }
nuclear@8 39 }
nuclear@8 40
nuclear@8 41 void set_option_float(void *optdb, const char *key, float val)
nuclear@8 42 {
nuclear@8 43 struct option *opt = malloc(sizeof *opt);
nuclear@8 44 if(!opt) {
nuclear@8 45 fprintf(stderr, "failed to set option: %s: %s\n", key, strerror(errno));
nuclear@8 46 return;
nuclear@8 47 }
nuclear@8 48 opt->type = OTYPE_FLOAT;
nuclear@8 49 opt->fval = val;
nuclear@8 50 opt->ival = (int)val;
nuclear@8 51
nuclear@8 52 if(rb_insert(optdb, (void*)key, opt) == -1) {
nuclear@8 53 fprintf(stderr, "failed to set option: %s\n", key);
nuclear@8 54 }
nuclear@8 55 }
nuclear@8 56
nuclear@8 57 int get_option_int(void *optdb, const char *key, int *val)
nuclear@8 58 {
nuclear@8 59 struct option *opt = rb_find(optdb, (void*)key);
nuclear@8 60 if(!opt) {
nuclear@8 61 *val = 0;
nuclear@8 62 return -1;
nuclear@8 63 }
nuclear@8 64 *val = opt->ival;
nuclear@8 65 return 0;
nuclear@8 66 }
nuclear@8 67
nuclear@8 68 int get_option_float(void *optdb, const char *key, float *val)
nuclear@8 69 {
nuclear@8 70 struct option *opt = rb_find(optdb, (void*)key);
nuclear@8 71 if(!opt) {
nuclear@8 72 *val = 0.0f;
nuclear@8 73 return -1;
nuclear@8 74 }
nuclear@8 75 *val = opt->fval;
nuclear@8 76 return 0;
nuclear@8 77 }