oculus1

annotate src/vr.cc @ 5:681046a82ed2

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author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 15 Sep 2013 05:01:38 +0300
parents bb81990dc7c8
children 3265970a7315
rev   line source
nuclear@1 1 #include <stdio.h>
nuclear@1 2 #include "vr.h"
nuclear@1 3 #include "vr_impl.h"
nuclear@1 4
nuclear@1 5 static bool init_ovr();
nuclear@1 6
nuclear@3 7 VRContext vr_ctx;
nuclear@1 8
nuclear@1 9 extern "C" int vr_init(enum vr_init_mode mode)
nuclear@1 10 {
nuclear@1 11 if(!init_ovr()) {
nuclear@1 12 return -1;
nuclear@1 13 }
nuclear@1 14 return 0;
nuclear@1 15 }
nuclear@1 16
nuclear@1 17 extern "C" void vr_shutdown(void)
nuclear@1 18 {
nuclear@3 19 //System::Destroy();
nuclear@1 20 }
nuclear@1 21
nuclear@1 22 static bool init_ovr()
nuclear@1 23 {
nuclear@5 24 LogMaskConstants log_level;
nuclear@1 25 // initialize Oculus SDK
nuclear@5 26 const char *logenv = getenv("VR_LOGLEVEL");
nuclear@5 27 if(logenv) {
nuclear@5 28 switch(atoi(logenv)) {
nuclear@5 29 case 0:
nuclear@5 30 log_level = LogMask_None;
nuclear@5 31 break;
nuclear@5 32 case 1:
nuclear@5 33 log_level = LogMask_Regular;
nuclear@5 34 break;
nuclear@5 35 case 2:
nuclear@5 36 default:
nuclear@5 37 log_level = LogMask_All;
nuclear@5 38 break;
nuclear@5 39 }
nuclear@5 40 }
nuclear@5 41
nuclear@5 42 System::Init(Log::ConfigureDefaultLog(log_level));
nuclear@3 43 if(!(vr_ctx.ovr_devman = DeviceManager::Create())) {
nuclear@1 44 fprintf(stderr, "failed to create OVR device manager\n");
nuclear@1 45 return false;
nuclear@1 46 }
nuclear@1 47
nuclear@1 48 // create the display device
nuclear@4 49 HMDInfo info;
nuclear@3 50 if(!(vr_ctx.ovr_hmd_dev = vr_ctx.ovr_devman->EnumerateDevices<HMDDevice>().CreateDevice())) {
nuclear@1 51 fprintf(stderr, "no oculus rift devices found\n");
nuclear@4 52 } else {
nuclear@4 53 if(vr_ctx.ovr_hmd_dev->GetDeviceInfo(&info)) {
nuclear@4 54 printf("oculus device info:\n");
nuclear@4 55 printf(" name: %s\n", info.DisplayDeviceName);
nuclear@4 56 printf(" ipd: %f\n", info.InterpupillaryDistance);
nuclear@4 57 printf(" distortion: %f %f %f %f\n", info.DistortionK[0],
nuclear@4 58 info.DistortionK[1], info.DistortionK[2], info.DistortionK[3]);
nuclear@4 59 }
nuclear@1 60
nuclear@4 61 // calculate and store viewing parameters
nuclear@4 62 float vhalfsz = info.VScreenSize * 0.5;
nuclear@4 63 vr_ctx.info.fov = 2.0 * atan(vhalfsz / info.EyeToScreenDistance);
nuclear@4 64
nuclear@4 65 vr_ctx.info.width = info.HResolution;
nuclear@4 66 vr_ctx.info.height = info.VResolution;
nuclear@4 67 vr_ctx.info.aspect = (float)vr_ctx.info.width / (float)vr_ctx.info.height;
nuclear@4 68
nuclear@4 69 vr_ctx.info.ipd = info.InterpupillaryDistance;
nuclear@4 70 for(int i=0; i<4; i++) {
nuclear@4 71 vr_ctx.info.distort[i] = info.DistortionK[i];
nuclear@4 72 }
nuclear@1 73 }
nuclear@1 74
nuclear@1 75 // get the sensor device
nuclear@4 76 if(vr_ctx.ovr_hmd_dev) {
nuclear@4 77 if(!(vr_ctx.ovr_sensor_dev = vr_ctx.ovr_hmd_dev->GetSensor())) {
nuclear@4 78 fprintf(stderr, "failed to get oculus sensor device\n");
nuclear@4 79 }
nuclear@4 80 } else {
nuclear@4 81 if(!(vr_ctx.ovr_sensor_dev = vr_ctx.ovr_devman->EnumerateDevices<SensorDevice>().CreateDevice())) {
nuclear@4 82 fprintf(stderr, "failed to get oculus sensor device\n");
nuclear@4 83 }
nuclear@1 84 }
nuclear@1 85
nuclear@4 86 if(vr_ctx.ovr_sensor_dev) {
nuclear@4 87 SensorInfo sinfo;
nuclear@4 88 if(vr_ctx.ovr_sensor_dev->GetDeviceInfo(&sinfo)) {
nuclear@4 89 printf("oculus sensor device info:\n");
nuclear@4 90 printf(" name: %s\n", sinfo.ProductName);
nuclear@4 91 }
nuclear@4 92
nuclear@4 93 vr_ctx.ovr_sfusion.AttachToSensor(vr_ctx.ovr_sensor_dev);
nuclear@1 94 }
nuclear@1 95 return true;
nuclear@1 96 }
nuclear@3 97
nuclear@3 98 extern "C" int vr_get_width(void)
nuclear@3 99 {
nuclear@3 100 return vr_ctx.info.width;
nuclear@3 101 }
nuclear@3 102
nuclear@3 103 extern "C" int vr_get_height(void)
nuclear@3 104 {
nuclear@3 105 return vr_ctx.info.height;
nuclear@3 106 }
nuclear@3 107
nuclear@3 108 extern "C" float vr_get_fov(void)
nuclear@3 109 {
nuclear@3 110 return vr_ctx.info.fov;
nuclear@3 111 }
nuclear@3 112
nuclear@3 113 extern "C" float vr_get_aspect(void)
nuclear@3 114 {
nuclear@3 115 return vr_ctx.info.aspect;
nuclear@3 116 }
nuclear@3 117
nuclear@3 118 extern "C" void vr_set_eyedist(float ipd)
nuclear@3 119 {
nuclear@3 120 vr_ctx.info.ipd = ipd;
nuclear@3 121 }
nuclear@3 122
nuclear@3 123 extern "C" float vr_get_eyedist(void)
nuclear@3 124 {
nuclear@3 125 return vr_ctx.info.ipd;
nuclear@3 126 }
nuclear@3 127
nuclear@3 128 extern "C" void vr_set_distort(const float *coef)
nuclear@3 129 {
nuclear@3 130 memcpy(vr_ctx.info.distort, coef, sizeof vr_ctx.info.distort);
nuclear@3 131 }
nuclear@3 132
nuclear@3 133 extern "C" void vr_get_distort(float *coef)
nuclear@3 134 {
nuclear@3 135 memcpy(coef, vr_ctx.info.distort, sizeof vr_ctx.info.distort);
nuclear@3 136 }
nuclear@3 137
nuclear@3 138 extern "C" void vr_set_prediction_sec(float dt)
nuclear@3 139 {
nuclear@3 140 vr_ctx.ovr_sfusion.SetPrediction(dt);
nuclear@3 141 }
nuclear@3 142
nuclear@3 143 extern "C" float vr_get_prediction_sec(void)
nuclear@3 144 {
nuclear@3 145 return vr_ctx.ovr_sfusion.GetPredictionDelta();
nuclear@3 146 }
nuclear@3 147
nuclear@3 148 extern "C" void vr_get_translation(float *offs)
nuclear@3 149 {
nuclear@3 150 // current oculus devkit doesn't do translation
nuclear@3 151 offs[0] = offs[1] = offs[2] = 0.0f;
nuclear@3 152 }
nuclear@3 153
nuclear@3 154 extern "C" void vr_get_rotation(float *quat)
nuclear@3 155 {
nuclear@3 156 Quatf oq = vr_ctx.ovr_sfusion.GetPredictedOrientation();
nuclear@3 157 quat[0] = oq.x;
nuclear@3 158 quat[1] = oq.y;
nuclear@3 159 quat[2] = oq.z;
nuclear@3 160 quat[3] = oq.w;
nuclear@3 161 }
nuclear@3 162
nuclear@3 163 extern "C" void vr_get_rotation_euler(float *euler)
nuclear@3 164 {
nuclear@3 165 Quatf oq = vr_ctx.ovr_sfusion.GetPredictedOrientation();
nuclear@3 166 oq.GetEulerAngles<Axis_Y, Axis_X, Axis_Z>(euler + 1, euler, euler + 2);
nuclear@3 167 }