conworlds

annotate src/vr/vr.c @ 7:bd8202d6d28d

find changesets by author, revision, files, or words in the commit message
some progress...
author John Tsiombikas <nuclear@member.fsf.org>
date Fri, 22 Aug 2014 16:55:16 +0300
parents 3c36bc28c6c2
children 90abf4b93cc9
rev   line source
nuclear@4 1 #include <stdio.h>
nuclear@4 2 #include <string.h>
nuclear@4 3 #include "vr.h"
nuclear@4 4 #include "vr_impl.h"
nuclear@4 5
nuclear@4 6
nuclear@4 7 static struct vr_module *vrm;
nuclear@4 8 static float idmat[] = {
nuclear@4 9 1, 0, 0, 0,
nuclear@4 10 0, 1, 0, 0,
nuclear@4 11 0, 0, 1, 0,
nuclear@4 12 0, 0, 0, 1
nuclear@4 13 };
nuclear@4 14 static float fbtex_rect[] = {
nuclear@4 15 0, 0, 1, 1
nuclear@4 16 };
nuclear@4 17
nuclear@4 18 int vr_init(void)
nuclear@4 19 {
nuclear@4 20 int i, nmodules;
nuclear@4 21
nuclear@4 22 if(vrm) {
nuclear@4 23 vr_shutdown();
nuclear@4 24 }
nuclear@4 25
nuclear@4 26 vr_init_modules();
nuclear@4 27
nuclear@4 28 nmodules = vr_get_num_modules();
nuclear@4 29 for(i=0; i<nmodules; i++) {
nuclear@4 30 struct vr_module *m = vr_get_module(i);
nuclear@4 31 if(m->init() != -1) {
nuclear@4 32 /* add to the active modules array */
nuclear@4 33 vr_activate_module(i);
nuclear@4 34 if(!vrm) {
nuclear@4 35 vr_use_module(0);
nuclear@4 36 }
nuclear@4 37 }
nuclear@4 38 }
nuclear@4 39
nuclear@4 40 if(!vrm) {
nuclear@4 41 return -1;
nuclear@4 42 }
nuclear@4 43 return 0;
nuclear@4 44 }
nuclear@4 45
nuclear@4 46 void vr_shutdown(void)
nuclear@4 47 {
nuclear@4 48 vr_clear_modules();
nuclear@4 49 vrm = 0;
nuclear@4 50 fbtex_rect[0] = fbtex_rect[1] = 0;
nuclear@4 51 fbtex_rect[2] = fbtex_rect[3] = 1;
nuclear@4 52 }
nuclear@4 53
nuclear@4 54 int vr_module_count(void)
nuclear@4 55 {
nuclear@4 56 return vr_get_num_active_modules();
nuclear@4 57 }
nuclear@4 58
nuclear@4 59 const char *vr_module_name(int idx)
nuclear@4 60 {
nuclear@4 61 struct vr_module *m = vr_get_active_module(idx);
nuclear@4 62 if(!m) {
nuclear@4 63 return 0;
nuclear@4 64 }
nuclear@4 65 return m->name;
nuclear@4 66 }
nuclear@4 67
nuclear@4 68 int vr_use_module(int idx)
nuclear@4 69 {
nuclear@4 70 if(idx >= 0 && idx < vr_get_num_active_modules()) {
nuclear@4 71 vrm = vr_get_active_module(idx);
nuclear@4 72 printf("using vr module: %s\n", vrm->name);
nuclear@4 73 return 0;
nuclear@4 74 }
nuclear@4 75 return -1;
nuclear@4 76 }
nuclear@4 77
nuclear@4 78 int vr_use_module_named(const char *name)
nuclear@4 79 {
nuclear@4 80 int i, count = vr_get_num_active_modules();
nuclear@4 81
nuclear@4 82 for(i=0; i<count; i++) {
nuclear@4 83 struct vr_module *m = vr_get_active_module(i);
nuclear@4 84 if(strcmp(m->name, name) == 0) {
nuclear@4 85 return vr_use_module(i);
nuclear@4 86 }
nuclear@4 87 }
nuclear@4 88 return -1;
nuclear@4 89 }
nuclear@4 90
nuclear@7 91 void vr_set_opti(const char *optname, int val)
nuclear@7 92 {
nuclear@7 93 if(vrm && vrm->set_option) {
nuclear@7 94 vrm->set_option(optname, OTYPE_INT, &val);
nuclear@7 95 }
nuclear@7 96 }
nuclear@7 97
nuclear@7 98 void vr_set_optf(const char *optname, float val)
nuclear@7 99 {
nuclear@7 100 if(vrm && vrm->set_option) {
nuclear@7 101 vrm->set_option(optname, OTYPE_FLOAT, &val);
nuclear@7 102 }
nuclear@7 103 }
nuclear@7 104
nuclear@7 105 int vr_get_opti(const char *optname)
nuclear@7 106 {
nuclear@7 107 int res = 0;
nuclear@7 108
nuclear@7 109 if(vrm && vrm->get_option) {
nuclear@7 110 vrm->get_option(optname, OTYPE_INT, &res);
nuclear@7 111 }
nuclear@7 112 return res;
nuclear@7 113 }
nuclear@7 114
nuclear@7 115 float vr_get_optf(const char *optname)
nuclear@7 116 {
nuclear@7 117 float res = 0.0f;
nuclear@7 118
nuclear@7 119 if(vrm && vrm->get_option) {
nuclear@7 120 vrm->get_option(optname, OTYPE_FLOAT, &res);
nuclear@7 121 }
nuclear@7 122 return res;
nuclear@7 123 }
nuclear@7 124
nuclear@7 125
nuclear@7 126 int vr_view_translation(int eye, float *vec)
nuclear@7 127 {
nuclear@7 128 if(vrm && vrm->translation) {
nuclear@7 129 vrm->translation(eye, vec);
nuclear@7 130 return 0;
nuclear@7 131 }
nuclear@7 132 vec[0] = vec[1] = vec[2] = 0.0f;
nuclear@7 133 return -1;
nuclear@7 134 }
nuclear@7 135
nuclear@7 136 int vr_view_rotation(int eye, float *quat)
nuclear@7 137 {
nuclear@7 138 if(vrm && vrm->rotation) {
nuclear@7 139 vrm->rotation(eye, quat);
nuclear@7 140 return 0;
nuclear@7 141 }
nuclear@7 142 quat[0] = quat[1] = quat[2] = 0.0f;
nuclear@7 143 quat[3] = 1.0f;
nuclear@7 144 return -1;
nuclear@7 145 }
nuclear@7 146
nuclear@4 147 int vr_view_matrix(int eye, float *mat)
nuclear@4 148 {
nuclear@7 149 /* TODO combine vr_view_translation and vr_view_rotation */
nuclear@4 150 return 0;
nuclear@4 151 }
nuclear@4 152
nuclear@7 153 int vr_proj_matrix(int eye, float znear, float zfar, float *mat)
nuclear@4 154 {
nuclear@4 155 if(vrm && vrm->proj_matrix) {
nuclear@7 156 vrm->proj_matrix(eye, znear, zfar, mat);
nuclear@4 157 return 1;
nuclear@4 158 }
nuclear@4 159 memcpy(mat, idmat, sizeof idmat);
nuclear@4 160 return 0;
nuclear@4 161 }
nuclear@4 162
nuclear@6 163 void vr_begin(int eye)
nuclear@4 164 {
nuclear@6 165 if(vrm && vrm->begin) {
nuclear@6 166 vrm->begin(eye);
nuclear@4 167 }
nuclear@4 168 }
nuclear@4 169
nuclear@6 170 void vr_end(void)
nuclear@4 171 {
nuclear@6 172 if(vrm && vrm->end) {
nuclear@6 173 vrm->end();
nuclear@6 174 }
nuclear@4 175 }
nuclear@6 176
nuclear@6 177 int vr_swap_buffers(void)
nuclear@6 178 {
nuclear@6 179 if(vrm && vrm->present) {
nuclear@6 180 vrm->present();
nuclear@6 181 return 1;
nuclear@6 182 }
nuclear@6 183 return 0;
nuclear@6 184 }
nuclear@7 185
nuclear@7 186 void vr_output_texture(unsigned int tex, float umin, float vmin, float umax, float vmax)
nuclear@7 187 {
nuclear@7 188 float halfu = (umax + umin) * 0.5f;
nuclear@7 189
nuclear@7 190 vr_output_texture_eye(VR_EYE_LEFT, tex, umin, vmin, halfu, vmax);
nuclear@7 191 vr_output_texture_eye(VR_EYE_RIGHT, tex, halfu, vmin, umax, vmax);
nuclear@7 192 }
nuclear@7 193
nuclear@7 194 void vr_output_texture_eye(int eye, unsigned int tex, float umin, float vmin, float umax, float vmax)
nuclear@7 195 {
nuclear@7 196 if(vrm && vrm->set_eye_texture) {
nuclear@7 197 vrm->set_eye_texture(eye, tex, umin, vmin, umax, vmax);
nuclear@7 198 }
nuclear@7 199 }
nuclear@7 200
nuclear@7 201 void vr_recenter(void)
nuclear@7 202 {
nuclear@7 203 if(vrm && vrm->recenter) {
nuclear@7 204 vrm->recenter();
nuclear@7 205 }
nuclear@7 206 }