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

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added preliminary OpenHMD module
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 22 Aug 2014 20:11:15 +0300
parents e6948e131526
children
rev   line source
nuclear@4 1 /* XXX this might become partly auto-generated in the future */
nuclear@4 2 #include <stdio.h>
nuclear@4 3 #include <stdlib.h>
nuclear@4 4 #include "vr_impl.h"
nuclear@4 5
nuclear@4 6 struct vr_module *vr_module_libovr(void);
nuclear@10 7 struct vr_module *vr_module_openhmd(void);
nuclear@4 8 struct vr_module *vr_module_null(void);
nuclear@4 9
nuclear@4 10 static struct vr_module *modules;
nuclear@4 11 static int num_modules, modules_max_size;
nuclear@4 12
nuclear@4 13 static int *active_modules;
nuclear@4 14 static int num_act_modules, act_modules_max_size;
nuclear@4 15
nuclear@4 16
nuclear@4 17 void vr_init_modules(void)
nuclear@4 18 {
nuclear@4 19 struct vr_module *m;
nuclear@4 20
nuclear@4 21 vr_clear_modules();
nuclear@4 22
nuclear@4 23 if((m = vr_module_libovr())) {
nuclear@4 24 vr_register_module(m);
nuclear@4 25 }
nuclear@4 26
nuclear@10 27 if((m = vr_module_openhmd())) {
nuclear@10 28 vr_register_module(m);
nuclear@10 29 }
nuclear@10 30
nuclear@4 31 if((m = vr_module_null())) {
nuclear@4 32 vr_register_module(m);
nuclear@4 33 }
nuclear@4 34 }
nuclear@4 35
nuclear@4 36 void vr_clear_modules(void)
nuclear@4 37 {
nuclear@4 38 free(modules);
nuclear@4 39 free(active_modules);
nuclear@4 40 modules = 0;
nuclear@4 41 num_modules = modules_max_size = 0;
nuclear@4 42 active_modules = 0;
nuclear@4 43 num_act_modules = act_modules_max_size = 0;
nuclear@4 44 }
nuclear@4 45
nuclear@4 46 void vr_register_module(struct vr_module *mod)
nuclear@4 47 {
nuclear@4 48 if(num_modules >= modules_max_size) {
nuclear@4 49 int newsz = modules_max_size ? modules_max_size * 2 : 2;
nuclear@4 50 struct vr_module *newmods = realloc(modules, newsz * sizeof *newmods);
nuclear@4 51 if(!newmods) {
nuclear@4 52 fprintf(stderr, "failed to resize modules array up to %d\n", newsz);
nuclear@4 53 return;
nuclear@4 54 }
nuclear@4 55 modules = newmods;
nuclear@4 56 modules_max_size = newsz;
nuclear@4 57 }
nuclear@4 58 modules[num_modules++] = *mod;
nuclear@4 59 }
nuclear@4 60
nuclear@4 61 int vr_get_num_modules(void)
nuclear@4 62 {
nuclear@4 63 return num_modules;
nuclear@4 64 }
nuclear@4 65
nuclear@4 66 struct vr_module *vr_get_module(int idx)
nuclear@4 67 {
nuclear@4 68 return modules + idx;
nuclear@4 69 }
nuclear@4 70
nuclear@4 71 void vr_activate_module(int idx)
nuclear@4 72 {
nuclear@4 73 if(num_act_modules >= act_modules_max_size) {
nuclear@4 74 int newsz = act_modules_max_size ? act_modules_max_size * 2 : 2;
nuclear@4 75 int *newact = realloc(active_modules, newsz * sizeof *newact);
nuclear@4 76 if(!newact) {
nuclear@4 77 fprintf(stderr, "failed to resize active modules array up to %d\n", newsz);
nuclear@4 78 return;
nuclear@4 79 }
nuclear@4 80 active_modules = newact;
nuclear@4 81 act_modules_max_size = newsz;
nuclear@4 82 }
nuclear@4 83 active_modules[num_act_modules++] = idx;
nuclear@4 84 }
nuclear@4 85
nuclear@4 86 int vr_get_num_active_modules(void)
nuclear@4 87 {
nuclear@4 88 return num_act_modules;
nuclear@4 89 }
nuclear@4 90
nuclear@4 91 struct vr_module *vr_get_active_module(int idx)
nuclear@4 92 {
nuclear@4 93 return modules + active_modules[idx];
nuclear@4 94 }