oculus1

annotate src/main.cc @ 8:3265970a7315

find changesets by author, revision, files, or words in the commit message
added xcode project
author John Tsiombikas <nuclear@member.fsf.org>
date Wed, 18 Sep 2013 22:15:04 +0300
parents 5a3ab7506c40
children b66b54a68dfd
rev   line source
nuclear@0 1 #include <stdio.h>
nuclear@0 2 #include <stdlib.h>
nuclear@1 3 #include <string.h>
nuclear@0 4 #include <assert.h>
nuclear@8 5 #include "opengl.h"
nuclear@1 6 #include "vr.h"
nuclear@0 7 #include "camera.h"
nuclear@0 8
nuclear@0 9 static bool init();
nuclear@0 10 static void cleanup();
nuclear@0 11 static void disp();
nuclear@0 12 static void idle();
nuclear@0 13 static void reshape(int x, int y);
nuclear@0 14 static void keyb(unsigned char key, int x, int y);
nuclear@8 15 static void keyup(unsigned char key, int x, int y);
nuclear@8 16 static void mouse(int bn, int st, int x, int y);
nuclear@8 17 static void motion(int x, int y);
nuclear@8 18 static void passive(int x, int y);
nuclear@0 19 static void sball_rotate(int rx, int ry, int rz);
nuclear@1 20 static bool parse_args(int argc, char **argv);
nuclear@0 21
nuclear@6 22 static FlyCamera cam;
nuclear@0 23 static int width, height;
nuclear@1 24 static bool use_vr = false;
nuclear@8 25 static bool mouselook = false;
nuclear@8 26
nuclear@8 27 static bool keystate[256];
nuclear@8 28
nuclear@0 29
nuclear@0 30 int main(int argc, char **argv)
nuclear@0 31 {
nuclear@3 32 glutInitWindowSize(1280, 800);
nuclear@0 33 glutInit(&argc, argv);
nuclear@1 34
nuclear@1 35 if(!parse_args(argc, argv)) {
nuclear@1 36 return 1;
nuclear@1 37 }
nuclear@1 38
nuclear@0 39 glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);
nuclear@0 40 glutCreateWindow("oculus test 01");
nuclear@0 41
nuclear@0 42 glutDisplayFunc(disp);
nuclear@0 43 glutIdleFunc(idle);
nuclear@0 44 glutReshapeFunc(reshape);
nuclear@0 45 glutKeyboardFunc(keyb);
nuclear@8 46 glutKeyboardUpFunc(keyup);
nuclear@8 47 glutMouseFunc(mouse);
nuclear@8 48 glutMotionFunc(motion);
nuclear@0 49 glutSpaceballRotateFunc(sball_rotate);
nuclear@0 50
nuclear@0 51 if(!init()) {
nuclear@0 52 return 1;
nuclear@0 53 }
nuclear@0 54 atexit(cleanup);
nuclear@0 55
nuclear@0 56 glutMainLoop();
nuclear@0 57 return 0;
nuclear@0 58 }
nuclear@0 59
nuclear@0 60 static bool init()
nuclear@0 61 {
nuclear@8 62 init_opengl(); // this must be first
nuclear@8 63
nuclear@0 64 glEnable(GL_DEPTH_TEST);
nuclear@0 65 glEnable(GL_LIGHTING);
nuclear@0 66 glEnable(GL_CULL_FACE);
nuclear@0 67
nuclear@0 68 glEnable(GL_LIGHT0);
nuclear@0 69 glEnable(GL_LIGHTING);
nuclear@0 70
nuclear@1 71 if(vr_init(VR_INIT_OCULUS) == -1) {
nuclear@5 72 return false;
nuclear@0 73 }
nuclear@0 74 return true;
nuclear@0 75 }
nuclear@0 76
nuclear@0 77 static void cleanup()
nuclear@0 78 {
nuclear@1 79 vr_shutdown();
nuclear@0 80 }
nuclear@0 81
nuclear@0 82 static void disp()
nuclear@0 83 {
nuclear@4 84 unsigned int msec = glutGet(GLUT_ELAPSED_TIME);
nuclear@4 85
nuclear@3 86 // test rift sensor
nuclear@3 87 float quat[4], euler[3];
nuclear@3 88
nuclear@3 89 vr_get_rotation(quat);
nuclear@3 90 vr_get_rotation_euler(euler);
nuclear@3 91
nuclear@5 92 Quaternion qrot(quat[3], quat[0], quat[1], quat[2]);
nuclear@5 93
nuclear@4 94 static unsigned int prev_print;
nuclear@4 95 if(msec - prev_print > 1000) {
nuclear@4 96 printf("q(%.3f + %.3fi + %.3fj %.3fk)", quat[3], quat[0], quat[1], quat[2]);
nuclear@4 97 printf(" - euler(%.3f %.3f %.3f)\n", euler[0], euler[1], euler[2]);
nuclear@4 98 prev_print = msec;
nuclear@4 99 }
nuclear@3 100
nuclear@0 101 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
nuclear@0 102
nuclear@0 103 glMatrixMode(GL_PROJECTION);
nuclear@0 104 glLoadIdentity();
nuclear@0 105 gluPerspective(45.0, (float)width / (float)height, 0.5, 500.0);
nuclear@0 106
nuclear@0 107 glMatrixMode(GL_MODELVIEW);
nuclear@7 108 cam.use();
nuclear@0 109
nuclear@0 110 float lpos[] = {0, 60, 0, 1};
nuclear@0 111 glLightfv(GL_LIGHT0, GL_POSITION, lpos);
nuclear@0 112
nuclear@8 113 /*glFrontFace(GL_CW);
nuclear@0 114 glutSolidTeapot(1.0);
nuclear@8 115 glFrontFace(GL_CCW);*/
nuclear@8 116
nuclear@8 117 glBegin(GL_QUADS);
nuclear@8 118 glNormal3f(0, 1, 0);
nuclear@8 119 glVertex3f(-10, -1, 10);
nuclear@8 120 glVertex3f(10, -1, 10);
nuclear@8 121 glVertex3f(10, -1, -10);
nuclear@8 122 glVertex3f(-10, -1, -10);
nuclear@8 123 glEnd();
nuclear@0 124
nuclear@0 125 glutSwapBuffers();
nuclear@0 126 assert(glGetError() == GL_NO_ERROR);
nuclear@0 127 }
nuclear@0 128
nuclear@0 129 static void idle()
nuclear@0 130 {
nuclear@0 131 glutPostRedisplay();
nuclear@0 132 }
nuclear@0 133
nuclear@0 134
nuclear@0 135 static void reshape(int x, int y)
nuclear@0 136 {
nuclear@0 137 width = x;
nuclear@0 138 height = y;
nuclear@0 139 }
nuclear@0 140
nuclear@0 141 static void keyb(unsigned char key, int x, int y)
nuclear@0 142 {
nuclear@0 143 switch(key) {
nuclear@0 144 case 27:
nuclear@0 145 exit(0);
nuclear@8 146
nuclear@8 147 case 'm':
nuclear@8 148 mouselook = !mouselook;
nuclear@8 149 if(mouselook) {
nuclear@8 150 glutPassiveMotionFunc(passive);
nuclear@8 151 glutSetCursor(GLUT_CURSOR_NONE);
nuclear@8 152 glutWarpPointer(width / 2, height / 2);
nuclear@8 153 } else {
nuclear@8 154 glutPassiveMotionFunc(0);
nuclear@8 155 glutSetCursor(GLUT_CURSOR_INHERIT);
nuclear@8 156 }
nuclear@8 157 break;
nuclear@0 158 }
nuclear@8 159
nuclear@8 160 keystate[key] = true;
nuclear@8 161 glutPostRedisplay();
nuclear@8 162 }
nuclear@8 163
nuclear@8 164 static void keyup(unsigned char key, int x, int y)
nuclear@8 165 {
nuclear@8 166 keystate[key] = false;
nuclear@8 167 glutPostRedisplay();
nuclear@8 168 }
nuclear@8 169
nuclear@8 170 static bool bnstate[32];
nuclear@8 171 static int prev_x, prev_y;
nuclear@8 172
nuclear@8 173 static void mouse(int bn, int st, int x, int y)
nuclear@8 174 {
nuclear@8 175 prev_x = x;
nuclear@8 176 prev_y = y;
nuclear@8 177 bnstate[bn - GLUT_LEFT_BUTTON] = st == GLUT_DOWN;
nuclear@8 178 }
nuclear@8 179
nuclear@8 180 static void motion(int x, int y)
nuclear@8 181 {
nuclear@8 182 if(mouselook) {
nuclear@8 183 // just call passive, it does what we need
nuclear@8 184 passive(x, y);
nuclear@8 185 }
nuclear@8 186 }
nuclear@8 187
nuclear@8 188 static void passive(int x, int y)
nuclear@8 189 {
nuclear@8 190 // no need to test mouselook; this callback is only set when mouselook is enabled
nuclear@8 191 int center_x = width / 2;
nuclear@8 192 int center_y = height / 2;
nuclear@8 193
nuclear@8 194 int dx = x - center_x;
nuclear@8 195 int dy = y - center_y;
nuclear@8 196
nuclear@8 197 if(!dx && !dy) {
nuclear@8 198 return;
nuclear@8 199 }
nuclear@8 200
nuclear@8 201 cam.input_rotate(dy * 0.1, dx * 0.1, 0.0);
nuclear@8 202 glutPostRedisplay();
nuclear@8 203
nuclear@8 204 glutWarpPointer(center_x, center_y);
nuclear@0 205 }
nuclear@0 206
nuclear@0 207 static void sball_rotate(int rx, int ry, int rz)
nuclear@0 208 {
nuclear@0 209 }
nuclear@1 210
nuclear@1 211 static bool parse_args(int argc, char **argv)
nuclear@1 212 {
nuclear@1 213 for(int i=1; i<argc; i++) {
nuclear@1 214 if(argv[i][0] == '-') {
nuclear@1 215 if(strcmp(argv[i], "-vr") == 0) {
nuclear@1 216 use_vr = true;
nuclear@1 217 } else if(strcmp(argv[i], "-novr") == 0) {
nuclear@1 218 use_vr = false;
nuclear@1 219 } else {
nuclear@1 220 fprintf(stderr, "invalid option: %s\n", argv[i]);
nuclear@1 221 return false;
nuclear@1 222 }
nuclear@1 223 } else {
nuclear@1 224 fprintf(stderr, "unexpected argument: %s\n", argv[i]);
nuclear@1 225 return false;
nuclear@1 226 }
nuclear@1 227 }
nuclear@1 228 return true;
nuclear@1 229 }