void MainLoop()
{
Layer[0] = new VRLayer(Session);
while (HandleMessages())
{
ActionFromInput();
Layer[0]->GetEyePoses();
// Read the remote state
ovrInputState inputState;
ovr_GetInputState(Session, ovrControllerType_Remote, &inputState);
unsigned int result = ovr_GetConnectedControllerTypes(Session);
bool isRemoteConnected = (result & ovrControllerType_Remote) ? true : false;
// Some auxiliary controls we're going to read from the remote.
XMVECTOR forward = XMVector3Rotate(XMVectorSet(0, 0, -0.05f, 0), MainCam->Rot);
XMVECTOR right = XMVector3Rotate(XMVectorSet(0.05f, 0, 0, 0), MainCam->Rot);
if (inputState.Buttons & ovrButton_Up) MainCam->Pos = XMVectorAdd(MainCam->Pos, forward);
if (inputState.Buttons & ovrButton_Down) MainCam->Pos = XMVectorSubtract(MainCam->Pos, forward);
if (inputState.Buttons & ovrButton_Left) MainCam->Pos = XMVectorSubtract(MainCam->Pos, right);
if (inputState.Buttons & ovrButton_Right) MainCam->Pos = XMVectorAdd(MainCam->Pos, right);
for (int eye = 0; eye < 2; ++eye)
{
//Tint the world, green for it the controller is attached, otherwise red
if (isRemoteConnected)
Layer[0]->RenderSceneToEyeBuffer(MainCam, RoomScene, eye, 0, 0, 1,/**/ 1, 0.5f, 1, 0.5f /*green*/);
else
Layer[0]->RenderSceneToEyeBuffer(MainCam, RoomScene, eye, 0, 0, 1,/**/ 1, 1, 0, 0 /*red*/);
}
Layer[0]->PrepareLayerHeader();
DistortAndPresent(1);
}
}
/**
* Render the Virtual Cinema Theatre.
***/
void* OculusTracker::Provoke(void* pThis, int eD3D, int eD3DInterface, int eD3DMethod, DWORD dwNumberConnected, int& nProvokerIndex)
{
// update game timer
m_cGameTimer.Tick();
static UINT unFrameSkip = 200;
if (unFrameSkip > 0)
{
unFrameSkip--;
return nullptr;
}
// #define _DEBUG_OTR
#ifdef _DEBUG_OTR
{ wchar_t buf[128]; wsprintf(buf, L"[OTR] ifc %u mtd %u", eD3DInterface, eD3DMethod); OutputDebugString(buf); }
#endif
// save ini file ?
if (m_nIniFrameCount)
{
if (m_nIniFrameCount == 1)
SaveIniSettings();
m_nIniFrameCount--;
}
// main menu update ?
if (m_sMenu.bOnChanged)
{
// set back event bool, set ini file frame count
m_sMenu.bOnChanged = false;
m_nIniFrameCount = 300;
// loop through entries
for (size_t nIx = 0; nIx < m_sMenu.asEntries.size(); nIx++)
{
// entry index changed ?
if (m_sMenu.asEntries[nIx].bOnChanged)
{
m_sMenu.asEntries[nIx].bOnChanged = false;
// touch entries ?
if (nIx < 25)
{
// set new vk code by string
m_aaunKeys[1][nIx] = GetVkCodeByString(m_sMenu.asEntries[nIx].astrValueEnumeration[m_sMenu.asEntries[nIx].unValue]);
}
}
}
}
if (m_hSession)
{
#pragma region controller
// controller indices
static const uint32_t s_unIndexRemote = 0;
static const uint32_t s_unIndexTouch = 1;
static const uint32_t s_unIndexXBox = 2;
// get all connected input states
ovrInputState sInputState[3] = {};
unsigned int unControllersConnected = ovr_GetConnectedControllerTypes(m_hSession);
#pragma region Remote
if (unControllersConnected & ovrControllerType_Remote)
{
ovr_GetInputState(m_hSession, ovrControllerType_Remote, &sInputState[s_unIndexRemote]);
// handle all remote buttons except Oculus private ones
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Up)
m_sMenu.bOnUp = true;
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Down)
m_sMenu.bOnDown = true;
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Left)
m_sMenu.bOnLeft = true;
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Right)
m_sMenu.bOnRight = true;
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Enter)
m_sMenu.bOnAccept = true;
if (sInputState[s_unIndexRemote].Buttons & ovrButton_Back)
m_sMenu.bOnBack = true;
}
#pragma endregion
#pragma region touch
if (unControllersConnected & ovrControllerType_Touch)
{
// get input state
ovr_GetInputState(m_hSession, ovrControllerType_Touch, &sInputState[s_unIndexTouch]);
// loop through controller buttons
for (UINT unButtonIx = 0; unButtonIx < unButtonNo; unButtonIx++)
{
// cast keyboard event
if (sInputState[s_unIndexTouch].Buttons & aunButtonIds[unButtonIx])
{
if (!m_aabKeys[s_unIndexTouch][unButtonIx])
MapButtonDown(s_unIndexTouch, unButtonIx);
}
else
if (m_aabKeys[s_unIndexTouch][unButtonIx])
MapButtonUp(s_unIndexTouch, unButtonIx);
}
}
#pragma endregion
if (unControllersConnected & ovrControllerType_XBox)
ovr_GetInputState(m_hSession, ovrControllerType_XBox, &sInputState[s_unIndexXBox]);
#pragma endregion
#pragma region hmd
/*// Start the sensor which informs of the Rift's pose and motion .... obsolete for SDK 1.3.x ??
ovr_ConfigureTracking(m_hSession, ovrTrackingCap_Orientation | ovrTrackingCap_MagYawCorrection |
ovrTrackingCap_Position, 0);*/
// get the current tracking state
ovrTrackingState sTrackingState = ovr_GetTrackingState(m_hSession, ovr_GetTimeInSeconds(), false);
if (TRUE)//(sTrackingState.StatusFlags & (ovrStatus_OrientationTracked | ovrStatus_PositionTracked))
{
// get pose
ovrPoseStatef sPoseState = sTrackingState.HeadPose;
m_sPose = sPoseState.ThePose;
m_sOrientation.x = m_sPose.Orientation.x;
m_sOrientation.y = m_sPose.Orientation.y;
m_sOrientation.z = m_sPose.Orientation.z;
m_sOrientation.w = m_sPose.Orientation.w;
// backup old euler angles and velocity
float fEulerOld[3];
float fEulerVelocityOld[3];
memcpy(&fEulerOld[0], &m_fEuler[0], sizeof(float)* 3);
memcpy(&fEulerVelocityOld[0], &m_fEulerVelocity[0], sizeof(float)* 3);
// predicted euler angles ? for Oculus, due to ATW, we do not predict the euler angles
if (FALSE)
{
// get angles
m_sOrientation.GetEulerAngles<Axis::Axis_Y, Axis::Axis_X, Axis::Axis_Z, RotateDirection::Rotate_CW, HandedSystem::Handed_R >(&m_fEuler[1], &m_fEuler[0], &m_fEuler[2]);
// quick fix here...
m_fEuler[1] *= -1.0f;
m_fEuler[0] *= -1.0f;
m_fEuler[2] *= -1.0f;
// get euler velocity + acceleration
float fEulerAcceleration[3];
for (UINT unI = 0; unI < 3; unI++)
{
// get the velocity
m_fEulerVelocity[unI] = (m_fEuler[unI] - fEulerOld[unI]) / (float)m_cGameTimer.DeltaTime();
// get the acceleration
fEulerAcceleration[unI] = (m_fEulerVelocity[unI] - fEulerVelocityOld[unI]) / (float)m_cGameTimer.DeltaTime();
}
// get predicted euler
for (UINT unI = 0; unI < 3; unI++)
{
// compute predicted euler
m_fEulerPredicted[unI] = (0.5f * fEulerAcceleration[unI] * ((float)m_cGameTimer.DeltaTime() * (float)m_cGameTimer.DeltaTime())) + (m_fEulerVelocity[unI] * (float)m_cGameTimer.DeltaTime()) + m_fEuler[unI];
}
}
else
{
// get angles
m_sOrientation.GetEulerAngles<Axis::Axis_Y, Axis::Axis_X, Axis::Axis_Z, RotateDirection::Rotate_CW, HandedSystem::Handed_R >(&m_fEulerPredicted[1], &m_fEulerPredicted[0], &m_fEulerPredicted[2]);
// quick fix here...
m_fEulerPredicted[1] *= -1.0f;
m_fEulerPredicted[0] *= -1.0f;
m_fEulerPredicted[2] *= -1.0f;
}
// set the drawing update to true
m_bControlUpdate = true;
// set position
m_afPosition[0] = (float)-m_sPose.Position.x - m_afPositionOrigin[0];
m_afPosition[1] = (float)-m_sPose.Position.y - m_afPositionOrigin[1];
m_afPosition[2] = (float)m_sPose.Position.z + m_afPositionOrigin[2];
// get eye render pose and other fields
ovrEyeRenderDesc asEyeRenderDesc[2];
asEyeRenderDesc[0] = ovr_GetRenderDesc(m_hSession, ovrEye_Left, m_sHMDDesc.DefaultEyeFov[0]);
asEyeRenderDesc[1] = ovr_GetRenderDesc(m_hSession, ovrEye_Right, m_sHMDDesc.DefaultEyeFov[1]);
ovrPosef asHmdToEyePose[2] = { asEyeRenderDesc[0].HmdToEyePose,asEyeRenderDesc[1].HmdToEyePose };
//ovrVector3f asHmdToEyeViewOffset[2] = { asEyeRenderDesc[0].HmdToEyePose, asEyeRenderDesc[1].HmdToEyePose };
ovrPosef asEyeRenderPose[2];
static long long s_frameIndex = 0;
static double s_sensorSampleTime = 0.0; // sensorSampleTime is fed into the layer later
ovr_GetEyePoses(m_hSession, s_frameIndex, ovrTrue, asHmdToEyePose, asEyeRenderPose, &s_sensorSampleTime);
// ovr_CalcEyePoses(sTrackingState.HeadPose.ThePose, asHmdToEyePose, asEyeRenderPose);
// create rotation matrix from euler angles
D3DXMATRIX sRotation;
D3DXMATRIX sPitch, sYaw, sRoll;
D3DXMatrixRotationX(&sPitch, m_fEulerPredicted[0]);
D3DXMatrixRotationY(&sYaw, m_fEulerPredicted[1]);
D3DXMatrixRotationZ(&sRoll, -m_fEulerPredicted[2]);
sRotation = sYaw * sPitch * sRoll;
// create per eye view matrix from rotation and position
D3DXMATRIX sView[2];
for (UINT unEye = 0; unEye < 2; unEye++)
{
D3DXMATRIX sTranslation;
D3DXMatrixTranslation(&sTranslation, (float)-asEyeRenderPose[unEye].Position.x - m_afPositionOrigin[0], (float)-asEyeRenderPose[unEye].Position.y - m_afPositionOrigin[1], (float)asEyeRenderPose[unEye].Position.z + m_afPositionOrigin[2]);
sView[unEye] = sTranslation * sRotation;
}
// create head pose view matrix
D3DXMATRIX sTranslation;
D3DXMatrixTranslation(&sTranslation, (float)-sTrackingState.HeadPose.ThePose.Position.x - m_afPositionOrigin[0], (float)-sTrackingState.HeadPose.ThePose.Position.y - m_afPositionOrigin[1], (float)sTrackingState.HeadPose.ThePose.Position.z + m_afPositionOrigin[2]);
m_sView = sTranslation * sRotation;
// create inverse view matrix
D3DXMATRIX sVInv = {};
D3DXMatrixInverse(&sVInv, nullptr, &m_sView);
// get projection matrices left/right
D3DXMATRIX asToEye[2];
D3DXMATRIX asProjection[2];
for (UINT unEye = 0; unEye < 2; unEye++)
{
// get ovr projection
ovrMatrix4f sProj = ovrMatrix4f_Projection(m_sHMDDesc.DefaultEyeFov[unEye], 0.01f, 30.0f, ovrProjection_LeftHanded);
// create dx projection
asProjection[unEye] = D3DXMATRIX(&sProj.M[0][0]);
D3DXMatrixTranspose(&asProjection[unEye], &asProjection[unEye]);
// create eventual projection using inverse matrix of the head pose view matrix
m_asProjection[unEye] = sVInv * sView[unEye] * asProjection[unEye];
}
}
#pragma endregion
}
else
{
// Initialize LibOVR, and the Rift... then create hmd handle
ovrResult result = ovr_Initialize(nullptr);
if (!OVR_SUCCESS(result))
{
OutputDebugString(L"[OVR] Failed to initialize libOVR.");
return nullptr;
}
result = ovr_Create(&m_hSession, &m_sLuid);
if (!OVR_SUCCESS(result))
{
OutputDebugString(L"[OVR] Failed to retreive HMD handle.");
return nullptr;
}
else
OutputDebugString(L"[OVR] HMD handle initialized !");
if (m_hSession)
{
// get the description and set pointers
m_sHMDDesc = ovr_GetHmdDesc(m_hSession);
// Configure Stereo settings.
ovrSizei sRecommenedTex0Size = ovr_GetFovTextureSize(m_hSession, ovrEye_Left,
m_sHMDDesc.DefaultEyeFov[0], 1.0f);
ovrSizei sRecommenedTex1Size = ovr_GetFovTextureSize(m_hSession, ovrEye_Right,
m_sHMDDesc.DefaultEyeFov[1], 1.0f);
ovrSizei sTextureSize;
sTextureSize.w = max(sRecommenedTex0Size.w, sRecommenedTex1Size.w);
sTextureSize.h = max(sRecommenedTex0Size.h, sRecommenedTex1Size.h);
m_unRenderTextureWidth = (UINT)sTextureSize.w;
m_unRenderTextureHeight = (UINT)sTextureSize.h;
// get view offset
ovrEyeRenderDesc asEyeRenderDesc[2];
asEyeRenderDesc[0] = ovr_GetRenderDesc(m_hSession, ovrEye_Left, m_sHMDDesc.DefaultEyeFov[0]);
asEyeRenderDesc[1] = ovr_GetRenderDesc(m_hSession, ovrEye_Right, m_sHMDDesc.DefaultEyeFov[1]);
ovrVector3f asViewOffset[2] = { asEyeRenderDesc[0].HmdToEyePose.Position, asEyeRenderDesc[1].HmdToEyePose.Position };
// get projection matrices left/right
D3DXMATRIX asToEye[2];
D3DXMATRIX asProjection[2];
for (UINT unEye = 0; unEye < 2; unEye++)
{
// get ovr projection
ovrMatrix4f sProj = ovrMatrix4f_Projection(m_sHMDDesc.DefaultEyeFov[unEye], 0.01f, 30.0f, ovrProjection_LeftHanded);
// create dx projection
asProjection[unEye] = D3DXMATRIX(&sProj.M[0][0]);
D3DXMatrixTranspose(&asProjection[unEye], &asProjection[unEye]);
// create view offset translation matrix
D3DXMatrixTranslation(&asToEye[unEye], -asViewOffset[unEye].x, -asViewOffset[unEye].y, -asViewOffset[unEye].z);
// create eventual projection
m_asProjection[unEye] = asToEye[unEye] * asProjection[unEye];
}
}
}
return nullptr;
}
