1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/LibOVR/Src/CAPI/CAPI_HMDState.cpp	Wed Jan 14 06:51:16 2015 +0200
     1.3 @@ -0,0 +1,816 @@
     1.4 +/************************************************************************************
     1.5 +
     1.6 +Filename    :   CAPI_HMDState.cpp
     1.7 +Content     :   State associated with a single HMD
     1.8 +Created     :   January 24, 2014
     1.9 +Authors     :   Michael Antonov
    1.10 +
    1.11 +Copyright   :   Copyright 2014 Oculus VR, LLC All Rights reserved.
    1.12 +
    1.13 +Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License"); 
    1.14 +you may not use the Oculus VR Rift SDK except in compliance with the License, 
    1.15 +which is provided at the time of installation or download, or which 
    1.16 +otherwise accompanies this software in either electronic or hard copy form.
    1.17 +
    1.18 +You may obtain a copy of the License at
    1.19 +
    1.20 +http://www.oculusvr.com/licenses/LICENSE-3.2 
    1.21 +
    1.22 +Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
    1.23 +distributed under the License is distributed on an "AS IS" BASIS,
    1.24 +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    1.25 +See the License for the specific language governing permissions and
    1.26 +limitations under the License.
    1.27 +
    1.28 +************************************************************************************/
    1.29 +
    1.30 +#include "CAPI_HMDState.h"
    1.31 +#include "../OVR_Profile.h"
    1.32 +#include "../Service/Service_NetClient.h"
    1.33 +#ifdef OVR_OS_WIN32
    1.34 +#include "../Displays/OVR_Win32_ShimFunctions.h"
    1.35 +#endif
    1.36 +
    1.37 +
    1.38 +namespace OVR { namespace CAPI {
    1.39 +
    1.40 +
    1.41 +// Accessed via HMDState::GetHMDStateList()
    1.42 +static OVR::List<HMDState> hmdStateList; // List of all created HMDStates.
    1.43 +
    1.44 +
    1.45 +//-------------------------------------------------------------------------------------
    1.46 +// ***** HMDState
    1.47 +
    1.48 +HMDState::HMDState(const OVR::Service::HMDNetworkInfo& netInfo,
    1.49 +				   const OVR::HMDInfo& hmdInfo,
    1.50 +				   Profile* profile,
    1.51 +				   Service::NetClient* client) :
    1.52 +    pProfile(profile),
    1.53 +    pHmdDesc(0),
    1.54 +    pWindow(0),
    1.55 +    pClient(client),
    1.56 +    NetId(netInfo.NetId),
    1.57 +    NetInfo(netInfo),
    1.58 +    OurHMDInfo(hmdInfo),
    1.59 +    pLastError(NULL),
    1.60 +    EnabledHmdCaps(0),
    1.61 +    EnabledServiceHmdCaps(0),
    1.62 +    SharedStateReader(),
    1.63 +    TheSensorStateReader(),
    1.64 +    TheLatencyTestStateReader(),
    1.65 +    LatencyTestActive(false),
    1.66 +  //LatencyTestDrawColor(),
    1.67 +    LatencyTest2Active(false),
    1.68 +  //LatencyTest2DrawColor(),
    1.69 +    TimeManager(true),
    1.70 +    RenderState(),
    1.71 +    pRenderer(),
    1.72 +    pHSWDisplay(),
    1.73 +    LastFrameTimeSeconds(0.),
    1.74 +    LastGetFrameTimeSeconds(0.),
    1.75 +  //LastGetStringValue(),
    1.76 +    RenderingConfigured(false),
    1.77 +    BeginFrameCalled(false),
    1.78 +    BeginFrameThreadId(),
    1.79 +    RenderAPIThreadChecker(),
    1.80 +    BeginFrameTimingCalled(false)
    1.81 +{
    1.82 +    sharedInit(profile);
    1.83 +    hmdStateList.PushBack(this);
    1.84 +}
    1.85 +
    1.86 +
    1.87 +HMDState::HMDState(const OVR::HMDInfo& hmdInfo, Profile* profile) :
    1.88 +    pProfile(profile),
    1.89 +    pHmdDesc(0),
    1.90 +    pWindow(0),
    1.91 +    pClient(0),
    1.92 +    NetId(InvalidVirtualHmdId),
    1.93 +    NetInfo(),
    1.94 +    OurHMDInfo(hmdInfo),
    1.95 +    pLastError(NULL),
    1.96 +    EnabledHmdCaps(0),
    1.97 +    EnabledServiceHmdCaps(0),
    1.98 +    SharedStateReader(),
    1.99 +    TheSensorStateReader(),
   1.100 +    TheLatencyTestStateReader(),
   1.101 +    LatencyTestActive(false),
   1.102 +  //LatencyTestDrawColor(),
   1.103 +    LatencyTest2Active(false),
   1.104 +  //LatencyTest2DrawColor(),
   1.105 +    TimeManager(true),
   1.106 +    RenderState(),
   1.107 +    pRenderer(),
   1.108 +    pHSWDisplay(),
   1.109 +    LastFrameTimeSeconds(0.),
   1.110 +    LastGetFrameTimeSeconds(0.),
   1.111 +  //LastGetStringValue(),
   1.112 +    RenderingConfigured(false),
   1.113 +    BeginFrameCalled(false),
   1.114 +    BeginFrameThreadId(),
   1.115 +    RenderAPIThreadChecker(),
   1.116 +    BeginFrameTimingCalled(false)
   1.117 +{
   1.118 +    sharedInit(profile);
   1.119 +    hmdStateList.PushBack(this);
   1.120 +}
   1.121 +
   1.122 +HMDState::~HMDState()
   1.123 +{
   1.124 +    hmdStateList.Remove(this);
   1.125 +
   1.126 +    if (pClient)
   1.127 +    {
   1.128 +		pClient->Hmd_Release(NetId);
   1.129 +		pClient = 0;
   1.130 +    }
   1.131 +
   1.132 +    ConfigureRendering(0,0,0,0);
   1.133 +
   1.134 +    if (pHmdDesc)
   1.135 +    {
   1.136 +        OVR_FREE(pHmdDesc);
   1.137 +        pHmdDesc = NULL;
   1.138 +    }
   1.139 +}
   1.140 +
   1.141 +void HMDState::sharedInit(Profile* profile)
   1.142 +{
   1.143 +    // TBD: We should probably be looking up the default profile for the given
   1.144 +    // device type + user if profile == 0.    
   1.145 +    pLastError = 0;
   1.146 +
   1.147 +    RenderState.OurHMDInfo = OurHMDInfo;
   1.148 +
   1.149 +    UpdateRenderProfile(profile);
   1.150 +
   1.151 +    OVR_ASSERT(!pHmdDesc);
   1.152 +    pHmdDesc         = (ovrHmdDesc*)OVR_ALLOC(sizeof(ovrHmdDesc));
   1.153 +    *pHmdDesc        = RenderState.GetDesc();
   1.154 +    pHmdDesc->Handle = this;
   1.155 +
   1.156 +    RenderState.ClearColor[0] = 0.0f;
   1.157 +    RenderState.ClearColor[1] = 0.0f;
   1.158 +    RenderState.ClearColor[2] = 0.0f;
   1.159 +    RenderState.ClearColor[3] = 0.0f;
   1.160 +
   1.161 +    RenderState.EnabledHmdCaps = 0;
   1.162 +
   1.163 +    TimeManager.Init(RenderState.RenderInfo);
   1.164 +
   1.165 +    /*
   1.166 +    LatencyTestDrawColor[0] = 0;
   1.167 +    LatencyTestDrawColor[1] = 0;
   1.168 +    LatencyTestDrawColor[2] = 0;
   1.169 +    */
   1.170 +
   1.171 +    RenderingConfigured = false;
   1.172 +    BeginFrameCalled   = false;
   1.173 +    BeginFrameThreadId = 0;
   1.174 +    BeginFrameTimingCalled = false;
   1.175 +
   1.176 +    // Construct the HSWDisplay. We will later reconstruct it with a specific ovrRenderAPI type if the application starts using SDK-based rendering.
   1.177 +    if(!pHSWDisplay)
   1.178 +    {
   1.179 +        pHSWDisplay = *OVR::CAPI::HSWDisplay::Factory(ovrRenderAPI_None, pHmdDesc, RenderState);
   1.180 +        pHSWDisplay->Enable(pProfile->GetBoolValue("HSW", true));
   1.181 +    }
   1.182 +}
   1.183 +
   1.184 +static Vector3f GetNeckModelFromProfile(Profile* profile)
   1.185 +{
   1.186 +    OVR_ASSERT(profile);
   1.187 +
   1.188 +    float neckeye[2] = { OVR_DEFAULT_NECK_TO_EYE_HORIZONTAL, OVR_DEFAULT_NECK_TO_EYE_VERTICAL };
   1.189 +    profile->GetFloatValues(OVR_KEY_NECK_TO_EYE_DISTANCE, neckeye, 2);
   1.190 +
   1.191 +    // Make sure these are vaguely sensible values.
   1.192 +    //OVR_ASSERT((neckeye[0] > 0.05f) && (neckeye[0] < 0.5f));
   1.193 +    //OVR_ASSERT((neckeye[1] > 0.05f) && (neckeye[1] < 0.5f));
   1.194 +
   1.195 +    // Named for clarity
   1.196 +    float NeckToEyeHorizontal = neckeye[0];
   1.197 +    float NeckToEyeVertical = neckeye[1];
   1.198 +
   1.199 +    // Store the neck model
   1.200 +    return Vector3f(0.0, NeckToEyeVertical, -NeckToEyeHorizontal);
   1.201 +}
   1.202 +
   1.203 +static float GetCenterPupilDepthFromRenderInfo(HmdRenderInfo* hmdRenderInfo)
   1.204 +{
   1.205 +    OVR_ASSERT(hmdRenderInfo);
   1.206 +
   1.207 +    // Find the distance from the center of the screen to the "center eye"
   1.208 +    // This center eye is used by systems like rendering & audio to represent the player,
   1.209 +    // and they will handle the offsets needed from there to each actual eye.
   1.210 +
   1.211 +    // HACK HACK HACK
   1.212 +    // We know for DK1 the screen->lens surface distance is roughly 0.049f, and that the faceplate->lens is 0.02357f.
   1.213 +    // We're going to assume(!!!!) that all HMDs have the same screen->faceplate distance.
   1.214 +    // Crystal Cove was measured to be roughly 0.025 screen->faceplate which agrees with this assumption.
   1.215 +    // TODO: do this properly!  Update:  Measured this at 0.02733 with a CC prototype, CES era (PT7), on 2/19/14 -Steve
   1.216 +    float screenCenterToMidplate = 0.02733f;
   1.217 +    float centerEyeRelief = hmdRenderInfo->GetEyeCenter().ReliefInMeters;
   1.218 +    float CenterPupilDepth = screenCenterToMidplate + hmdRenderInfo->LensSurfaceToMidplateInMeters + centerEyeRelief;
   1.219 +
   1.220 +    return CenterPupilDepth;
   1.221 +}
   1.222 +
   1.223 +void HMDState::UpdateRenderProfile(Profile* profile)
   1.224 +{
   1.225 +    // Apply the given profile to generate a render context
   1.226 +    RenderState.RenderInfo = GenerateHmdRenderInfoFromHmdInfo(RenderState.OurHMDInfo, profile);
   1.227 +    RenderState.Distortion[0] = CalculateDistortionRenderDesc(StereoEye_Left, RenderState.RenderInfo, 0);
   1.228 +    RenderState.Distortion[1] = CalculateDistortionRenderDesc(StereoEye_Right, RenderState.RenderInfo, 0);
   1.229 +
   1.230 +    if (pClient)
   1.231 +    {
   1.232 +        // Center pupil depth
   1.233 +        float centerPupilDepth = GetCenterPupilDepthFromRenderInfo(&RenderState.RenderInfo);
   1.234 +        pClient->SetNumberValue(GetNetId(), "CenterPupilDepth", centerPupilDepth);
   1.235 +
   1.236 +        // Neck model
   1.237 +        Vector3f neckModel = GetNeckModelFromProfile(profile);
   1.238 +        double neckModelArray[3] = {
   1.239 +            neckModel.x,
   1.240 +            neckModel.y,
   1.241 +            neckModel.z
   1.242 +        };
   1.243 +        pClient->SetNumberValues(GetNetId(), "NeckModelVector3f", neckModelArray, 3);
   1.244 +
   1.245 +        double camerastate[7];
   1.246 +        if (profile->GetDoubleValues(OVR_KEY_CAMERA_POSITION, camerastate, 7) == 0)
   1.247 +        {
   1.248 +            //there is no value, so we load the default
   1.249 +            for (int i = 0; i < 7; i++) camerastate[i] = 0;
   1.250 +            camerastate[3] = 1;//no offset. by default, give the quaternion w component value 1
   1.251 +        }
   1.252 +        else
   1.253 +
   1.254 +        TheSensorStateReader.setCenteredFromWorld(OVR::Posed::FromArray(camerastate));
   1.255 +    }
   1.256 +
   1.257 +
   1.258 +}
   1.259 +
   1.260 +HMDState* HMDState::CreateHMDState(NetClient* client, const HMDNetworkInfo& netInfo)
   1.261 +{
   1.262 +    // HMDState works through a handle to service HMD....
   1.263 +    HMDInfo hinfo;
   1.264 +    if (!client->Hmd_GetHmdInfo(netInfo.NetId, &hinfo))
   1.265 +    {
   1.266 +        OVR_DEBUG_LOG(("[HMDState] Unable to get HMD info"));
   1.267 +        return NULL;
   1.268 +    }
   1.269 +
   1.270 +#ifdef OVR_OS_WIN32
   1.271 +    OVR_DEBUG_LOG(("Setting up display shim"));
   1.272 +
   1.273 +    // Initialize the display shim before reporting the display to the user code
   1.274 +    // so that this will happen before the D3D display object is created.
   1.275 +    Win32::DisplayShim::GetInstance().Update(&hinfo.ShimInfo);
   1.276 +#endif
   1.277 +
   1.278 +    Ptr<Profile> pDefaultProfile = *ProfileManager::GetInstance()->GetDefaultUserProfile(&hinfo);
   1.279 +    OVR_DEBUG_LOG(("Using profile %s", pDefaultProfile->GetValue(OVR_KEY_USER)));
   1.280 +
   1.281 +    HMDState* hmds = new HMDState(netInfo, hinfo, pDefaultProfile, client);
   1.282 +
   1.283 +    if (!hmds->SharedStateReader.Open(netInfo.SharedMemoryName.ToCStr()))
   1.284 +    {
   1.285 +        delete hmds;
   1.286 +        return NULL;
   1.287 +    }
   1.288 +
   1.289 +    hmds->TheSensorStateReader.SetUpdater(hmds->SharedStateReader.Get());
   1.290 +    hmds->TheLatencyTestStateReader.SetUpdater(hmds->SharedStateReader.Get());
   1.291 +
   1.292 +    return hmds;
   1.293 +}
   1.294 +
   1.295 +HMDState* HMDState::CreateHMDState(ovrHmdType hmdType)
   1.296 +{
   1.297 +    HmdTypeEnum t = HmdType_None;
   1.298 +    if (hmdType == ovrHmd_DK1)
   1.299 +        t = HmdType_DK1;    
   1.300 +    else if (hmdType == ovrHmd_DK2)
   1.301 +        t = HmdType_DK2;
   1.302 +
   1.303 +    // FIXME: This does not actually grab the right user..
   1.304 +    Ptr<Profile> pDefaultProfile = *ProfileManager::GetInstance()->GetDefaultProfile(t);
   1.305 +
   1.306 +    return new HMDState(CreateDebugHMDInfo(t), pDefaultProfile);
   1.307 +}
   1.308 +    
   1.309 +
   1.310 +const OVR::List<HMDState>& HMDState::GetHMDStateList()
   1.311 +{
   1.312 +    return hmdStateList;
   1.313 +}
   1.314 +
   1.315 +
   1.316 +//-------------------------------------------------------------------------------------
   1.317 +// *** Sensor 
   1.318 +
   1.319 +bool HMDState::ConfigureTracking(unsigned supportedCaps, unsigned requiredCaps)
   1.320 +{
   1.321 +	return pClient ? pClient->Hmd_ConfigureTracking(NetId, supportedCaps, requiredCaps) : true;
   1.322 +}
   1.323 +
   1.324 +void HMDState::ResetTracking()
   1.325 +{
   1.326 +	if (pClient) pClient->Hmd_ResetTracking(NetId);
   1.327 +}        
   1.328 +
   1.329 +// Re-center the orientation.
   1.330 +void HMDState::RecenterPose()
   1.331 +{
   1.332 +    TheSensorStateReader.RecenterPose();
   1.333 +}
   1.334 +
   1.335 +// Returns prediction for time.
   1.336 +ovrTrackingState HMDState::PredictedTrackingState(double absTime)
   1.337 +{    
   1.338 +	Tracking::TrackingState ss;
   1.339 +    TheSensorStateReader.GetSensorStateAtTime(absTime, ss);
   1.340 +
   1.341 +    // Zero out the status flags
   1.342 +    if (!pClient || !pClient->IsConnected(false, false))
   1.343 +    {
   1.344 +        ss.StatusFlags = 0;
   1.345 +    }
   1.346 +
   1.347 +    return ss;
   1.348 +}
   1.349 +
   1.350 +void HMDState::SetEnabledHmdCaps(unsigned hmdCaps)
   1.351 +{
   1.352 +    if (OurHMDInfo.HmdType < HmdType_DK2)
   1.353 +    {
   1.354 +        // disable low persistence and pentile.
   1.355 +        hmdCaps &= ~ovrHmdCap_LowPersistence;
   1.356 +        hmdCaps &= ~ovrHmdCap_DirectPentile;
   1.357 +
   1.358 +        // disable dynamic prediction using the internal latency tester
   1.359 +        hmdCaps &= ~ovrHmdCap_DynamicPrediction;
   1.360 +    }
   1.361 +
   1.362 +    if (OurHMDInfo.HmdType >= HmdType_DK2)
   1.363 +    {
   1.364 +        if ((EnabledHmdCaps ^ hmdCaps) & ovrHmdCap_DynamicPrediction)
   1.365 +        {
   1.366 +            // DynamicPrediction change
   1.367 +            TimeManager.ResetFrameTiming(TimeManager.GetFrameTiming().FrameIndex,
   1.368 +                                         (hmdCaps & ovrHmdCap_DynamicPrediction) ? true : false,
   1.369 +                                         RenderingConfigured);
   1.370 +        }
   1.371 +    }
   1.372 +
   1.373 +    // Pentile unsupported on everything right now.
   1.374 +    hmdCaps &= ~ovrHmdCap_DirectPentile;
   1.375 +	
   1.376 +    if ((EnabledHmdCaps ^ hmdCaps) & ovrHmdCap_NoVSync)
   1.377 +    {
   1.378 +        TimeManager.SetVsync((hmdCaps & ovrHmdCap_NoVSync) ? false : true);
   1.379 +    }
   1.380 +
   1.381 +    if ((EnabledHmdCaps ^ hmdCaps) & ovrHmdCap_NoMirrorToWindow)
   1.382 +    {
   1.383 +#ifdef OVR_OS_WIN32
   1.384 +        Win32::DisplayShim::GetInstance().UseMirroring = (hmdCaps & ovrHmdCap_NoMirrorToWindow)  ?
   1.385 +                                                         false : true;
   1.386 +        if (pWindow)
   1.387 +        {   // Force window repaint so that stale mirrored image doesn't persist.
   1.388 +            ::InvalidateRect((HWND)pWindow, 0, true);
   1.389 +        }
   1.390 +#endif
   1.391 +    }
   1.392 +
   1.393 +    // TBD: Should this include be only the rendering flags? Otherwise, bits that failed
   1.394 +    //      modification in Hmd_SetEnabledCaps may mis-match...
   1.395 +    EnabledHmdCaps             = hmdCaps & ovrHmdCap_Writable_Mask;
   1.396 +    RenderState.EnabledHmdCaps = EnabledHmdCaps;
   1.397 +
   1.398 +
   1.399 +    // If any of the modifiable service caps changed, call on the service.
   1.400 +    unsigned prevServiceCaps = EnabledServiceHmdCaps & ovrHmdCap_Writable_Mask;
   1.401 +    unsigned newServiceCaps  = hmdCaps & ovrHmdCap_Writable_Mask & ovrHmdCap_Service_Mask;
   1.402 +
   1.403 +    if (prevServiceCaps ^ newServiceCaps)
   1.404 +	{
   1.405 +        EnabledServiceHmdCaps = pClient ? pClient->Hmd_SetEnabledCaps(NetId, newServiceCaps)
   1.406 +                                : newServiceCaps;
   1.407 +    }
   1.408 +}
   1.409 +
   1.410 +
   1.411 +unsigned HMDState::SetEnabledHmdCaps()
   1.412 +{
   1.413 +	unsigned serviceCaps = pClient ? pClient->Hmd_GetEnabledCaps(NetId) :
   1.414 +                                      EnabledServiceHmdCaps;
   1.415 +    
   1.416 +    return serviceCaps & ((~ovrHmdCap_Service_Mask) | EnabledHmdCaps);    
   1.417 +}
   1.418 +
   1.419 +
   1.420 +//-------------------------------------------------------------------------------------
   1.421 +// ***** Property Access
   1.422 +
   1.423 +// FIXME: Remove the EGetBoolValue stuff and do it with a "Server:" prefix, so we do not
   1.424 +// need to keep a white-list of keys.  This is also way cool because it allows us to add
   1.425 +// new settings keys from outside CAPI that can modify internal server data.
   1.426 +
   1.427 +bool HMDState::getBoolValue(const char* propertyName, bool defaultVal)
   1.428 +{
   1.429 +    if (NetSessionCommon::IsServiceProperty(NetSessionCommon::EGetBoolValue, propertyName))
   1.430 +    {
   1.431 +       return NetClient::GetInstance()->GetBoolValue(GetNetId(), propertyName, defaultVal);
   1.432 +    }
   1.433 +    else if (pProfile)
   1.434 +    {
   1.435 +        return pProfile->GetBoolValue(propertyName, defaultVal);
   1.436 +    }
   1.437 +    return defaultVal;
   1.438 +}
   1.439 +
   1.440 +bool HMDState::setBoolValue(const char* propertyName, bool value)
   1.441 +{
   1.442 +	if (NetSessionCommon::IsServiceProperty(NetSessionCommon::ESetBoolValue, propertyName))
   1.443 +	{
   1.444 +		return NetClient::GetInstance()->SetBoolValue(GetNetId(), propertyName, value);
   1.445 +	}
   1.446 +
   1.447 +	return false;
   1.448 +}
   1.449 +
   1.450 +int HMDState::getIntValue(const char* propertyName, int defaultVal)
   1.451 +{
   1.452 +    if (NetSessionCommon::IsServiceProperty(NetSessionCommon::EGetIntValue, propertyName))
   1.453 +    {
   1.454 +        return NetClient::GetInstance()->GetIntValue(GetNetId(), propertyName, defaultVal);
   1.455 +    }
   1.456 +    else if (pProfile)
   1.457 +    {
   1.458 +        return pProfile->GetIntValue(propertyName, defaultVal);
   1.459 +    }
   1.460 +    return defaultVal;
   1.461 +}
   1.462 +
   1.463 +bool HMDState::setIntValue(const char* propertyName, int value)
   1.464 +{
   1.465 +	if (NetSessionCommon::IsServiceProperty(NetSessionCommon::ESetIntValue, propertyName))
   1.466 +	{
   1.467 +		return NetClient::GetInstance()->SetIntValue(GetNetId(), propertyName, value);
   1.468 +	}
   1.469 +
   1.470 +	return false;
   1.471 +}
   1.472 +
   1.473 +float HMDState::getFloatValue(const char* propertyName, float defaultVal)
   1.474 +{
   1.475 +    if (OVR_strcmp(propertyName, "LensSeparation") == 0)
   1.476 +    {
   1.477 +        return OurHMDInfo.LensSeparationInMeters;
   1.478 +    }
   1.479 +    else if (OVR_strcmp(propertyName, "VsyncToNextVsync") == 0) 
   1.480 +    {
   1.481 +        return OurHMDInfo.Shutter.VsyncToNextVsync;
   1.482 +    }
   1.483 +    else if (OVR_strcmp(propertyName, "PixelPersistence") == 0) 
   1.484 +    {
   1.485 +        return OurHMDInfo.Shutter.PixelPersistence;
   1.486 +    }
   1.487 +    else if (NetSessionCommon::IsServiceProperty(NetSessionCommon::EGetNumberValue, propertyName))
   1.488 +    {
   1.489 +       return (float)NetClient::GetInstance()->GetNumberValue(GetNetId(), propertyName, defaultVal);
   1.490 +    }
   1.491 +    else if (pProfile)
   1.492 +    {
   1.493 +        return pProfile->GetFloatValue(propertyName, defaultVal);
   1.494 +    }
   1.495 +
   1.496 +    return defaultVal;
   1.497 +}
   1.498 +
   1.499 +bool HMDState::setFloatValue(const char* propertyName, float value)
   1.500 +{
   1.501 +	if (NetSessionCommon::IsServiceProperty(NetSessionCommon::ESetNumberValue, propertyName))
   1.502 +	{
   1.503 +		return NetClient::GetInstance()->SetNumberValue(GetNetId(), propertyName, value);
   1.504 +	}
   1.505 +
   1.506 +	return false;
   1.507 +}
   1.508 +
   1.509 +static unsigned CopyFloatArrayWithLimit(float dest[], unsigned destSize,
   1.510 +                                        float source[], unsigned sourceSize)
   1.511 +{
   1.512 +    unsigned count = Alg::Min(destSize, sourceSize);
   1.513 +    for (unsigned i = 0; i < count; i++)
   1.514 +        dest[i] = source[i];
   1.515 +    return count;
   1.516 +}
   1.517 +
   1.518 +unsigned HMDState::getFloatArray(const char* propertyName, float values[], unsigned arraySize)
   1.519 +{
   1.520 +	if (arraySize)
   1.521 +	{
   1.522 +		if (OVR_strcmp(propertyName, "ScreenSize") == 0)
   1.523 +		{
   1.524 +			float data[2] = { OurHMDInfo.ScreenSizeInMeters.w, OurHMDInfo.ScreenSizeInMeters.h };
   1.525 +
   1.526 +            return CopyFloatArrayWithLimit(values, arraySize, data, 2);
   1.527 +		}
   1.528 +        else if (OVR_strcmp(propertyName, "DistortionClearColor") == 0)
   1.529 +        {
   1.530 +            return CopyFloatArrayWithLimit(values, arraySize, RenderState.ClearColor, 4);
   1.531 +        }
   1.532 +        else if (OVR_strcmp(propertyName, "DK2Latency") == 0)
   1.533 +        {
   1.534 +            if (OurHMDInfo.HmdType != HmdType_DK2)
   1.535 +            {
   1.536 +                return 0;
   1.537 +            }
   1.538 +
   1.539 +            union {
   1.540 +                struct X {
   1.541 +                    float latencyRender, latencyTimewarp, latencyPostPresent;
   1.542 +                } x;
   1.543 +                float data[3];
   1.544 +            } m;
   1.545 +
   1.546 +            static_assert(sizeof(m.x)==sizeof(m.data), "sizeof(struct X) failure");
   1.547 +
   1.548 +            TimeManager.GetLatencyTimings(m.x.latencyRender, m.x.latencyTimewarp, m.x.latencyPostPresent);
   1.549 +
   1.550 +            return CopyFloatArrayWithLimit(values, arraySize, m.data, 3);
   1.551 +        }
   1.552 +        else if (NetSessionCommon::IsServiceProperty(NetSessionCommon::EGetNumberValues, propertyName))
   1.553 +        {
   1.554 +            // Convert floats to doubles
   1.555 +            double* da = new double[arraySize];
   1.556 +            for (int i = 0; i < (int)arraySize; ++i)
   1.557 +            {
   1.558 +                da[i] = values[i];
   1.559 +            }
   1.560 +
   1.561 +            int count = NetClient::GetInstance()->GetNumberValues(GetNetId(), propertyName, da, (int)arraySize);
   1.562 +
   1.563 +            for (int i = 0; i < count; ++i)
   1.564 +            {
   1.565 +                values[i] = (float)da[i];
   1.566 +            }
   1.567 +
   1.568 +            delete[] da;
   1.569 +
   1.570 +            return count;
   1.571 +        }
   1.572 +		else if (pProfile)
   1.573 +		{        
   1.574 +			// TBD: Not quite right. Should update profile interface, so that
   1.575 +			//      we can return 0 in all conditions if property doesn't exist.
   1.576 +		
   1.577 +            return pProfile->GetFloatValues(propertyName, values, arraySize);
   1.578 +		}
   1.579 +	}
   1.580 +
   1.581 +	return 0;
   1.582 +}
   1.583 +
   1.584 +bool HMDState::setFloatArray(const char* propertyName, float values[], unsigned arraySize)
   1.585 +{
   1.586 +    if (!arraySize)
   1.587 +    {
   1.588 +        return false;
   1.589 +    }
   1.590 +    
   1.591 +    if (OVR_strcmp(propertyName, "DistortionClearColor") == 0)
   1.592 +    {
   1.593 +        CopyFloatArrayWithLimit(RenderState.ClearColor, 4, values, arraySize);
   1.594 +        return true;
   1.595 +    }
   1.596 +
   1.597 +	if (NetSessionCommon::IsServiceProperty(NetSessionCommon::ESetNumberValues, propertyName))
   1.598 +	{
   1.599 +		double* da = new double[arraySize];
   1.600 +		for (int i = 0; i < (int)arraySize; ++i)
   1.601 +		{
   1.602 +			da[i] = values[i];
   1.603 +		}
   1.604 +
   1.605 +		bool result = NetClient::GetInstance()->SetNumberValues(GetNetId(), propertyName, da, arraySize);
   1.606 +
   1.607 +		delete[] da;
   1.608 +
   1.609 +		return result;
   1.610 +	}
   1.611 +
   1.612 +	return false;
   1.613 +}
   1.614 +
   1.615 +const char* HMDState::getString(const char* propertyName, const char* defaultVal)
   1.616 +{
   1.617 +    if (NetSessionCommon::IsServiceProperty(NetSessionCommon::EGetStringValue, propertyName))
   1.618 +    {
   1.619 +        return NetClient::GetInstance()->GetStringValue(GetNetId(), propertyName, defaultVal);
   1.620 +    }
   1.621 +
   1.622 +	if (pProfile)
   1.623 +	{
   1.624 +		LastGetStringValue[0] = 0;
   1.625 +		if (pProfile->GetValue(propertyName, LastGetStringValue, sizeof(LastGetStringValue)))
   1.626 +		{
   1.627 +			return LastGetStringValue;
   1.628 +		}
   1.629 +	}
   1.630 +
   1.631 +	return defaultVal;
   1.632 +}
   1.633 +
   1.634 +bool HMDState::setString(const char* propertyName, const char* value)
   1.635 +{
   1.636 +	if (NetSessionCommon::IsServiceProperty(NetSessionCommon::ESetStringValue, propertyName))
   1.637 +	{
   1.638 +		return NetClient::GetInstance()->SetStringValue(GetNetId(), propertyName, value);
   1.639 +	}
   1.640 +
   1.641 +	return false;
   1.642 +}
   1.643 +
   1.644 +
   1.645 +//-------------------------------------------------------------------------------------
   1.646 +// *** Latency Test
   1.647 +
   1.648 +bool HMDState::ProcessLatencyTest(unsigned char rgbColorOut[3])
   1.649 +{    
   1.650 +    return NetClient::GetInstance()->LatencyUtil_ProcessInputs(Timer::GetSeconds(), rgbColorOut);
   1.651 +}
   1.652 +
   1.653 +//-------------------------------------------------------------------------------------
   1.654 +// *** Rendering
   1.655 +
   1.656 +bool HMDState::ConfigureRendering(ovrEyeRenderDesc eyeRenderDescOut[2],
   1.657 +                                  const ovrFovPort eyeFovIn[2],
   1.658 +                                  const ovrRenderAPIConfig* apiConfig,                                  
   1.659 +                                  unsigned distortionCaps)
   1.660 +{
   1.661 +    ThreadChecker::Scope checkScope(&RenderAPIThreadChecker, "ovrHmd_ConfigureRendering");
   1.662 +
   1.663 +    // null -> shut down.
   1.664 +    if (!apiConfig)
   1.665 +    {
   1.666 +        if (pHSWDisplay)
   1.667 +        {
   1.668 +            pHSWDisplay->Shutdown();
   1.669 +            pHSWDisplay.Clear();
   1.670 +        }
   1.671 +
   1.672 +        if (pRenderer)
   1.673 +            pRenderer.Clear();        
   1.674 +        RenderingConfigured = false; 
   1.675 +        return true;
   1.676 +    }
   1.677 +
   1.678 +    if (pRenderer &&
   1.679 +        (apiConfig->Header.API != pRenderer->GetRenderAPI()))
   1.680 +    {
   1.681 +        // Shutdown old renderer.
   1.682 +        if (pHSWDisplay)
   1.683 +        {
   1.684 +            pHSWDisplay->Shutdown();
   1.685 +            pHSWDisplay.Clear();
   1.686 +        }
   1.687 +
   1.688 +        if (pRenderer)
   1.689 +            pRenderer.Clear();
   1.690 +    }
   1.691 +
   1.692 +	distortionCaps = distortionCaps & pHmdDesc->DistortionCaps;
   1.693 +
   1.694 +    // Step 1: do basic setup configuration
   1.695 +    RenderState.EnabledHmdCaps = EnabledHmdCaps;     // This is a copy... Any cleaner way?
   1.696 +    RenderState.DistortionCaps = distortionCaps;
   1.697 +    RenderState.EyeRenderDesc[0] = RenderState.CalcRenderDesc(ovrEye_Left,  eyeFovIn[0]);
   1.698 +    RenderState.EyeRenderDesc[1] = RenderState.CalcRenderDesc(ovrEye_Right, eyeFovIn[1]);
   1.699 +    eyeRenderDescOut[0] = RenderState.EyeRenderDesc[0];
   1.700 +    eyeRenderDescOut[1] = RenderState.EyeRenderDesc[1];
   1.701 +
   1.702 +    TimeManager.ResetFrameTiming(0,
   1.703 +                                 (EnabledHmdCaps & ovrHmdCap_DynamicPrediction) ? true : false,
   1.704 +                                 true);
   1.705 +
   1.706 +    LastFrameTimeSeconds = 0.0f;
   1.707 +
   1.708 +    // Set RenderingConfigured early to avoid ASSERTs in renderer initialization.
   1.709 +    RenderingConfigured = true;
   1.710 +
   1.711 +    if (!pRenderer)
   1.712 +    {
   1.713 +        pRenderer = *DistortionRenderer::APICreateRegistry
   1.714 +                        [apiConfig->Header.API](pHmdDesc, TimeManager, RenderState);
   1.715 +    }
   1.716 +
   1.717 +    if (!pRenderer ||
   1.718 +        !pRenderer->Initialize(apiConfig))
   1.719 +    {
   1.720 +        RenderingConfigured = false;
   1.721 +        return false;
   1.722 +    }    
   1.723 +
   1.724 +    // Setup the Health and Safety Warning display system.
   1.725 +    if(pHSWDisplay && (pHSWDisplay->GetRenderAPIType() != apiConfig->Header.API)) // If we need to reconstruct the HSWDisplay for a different graphics API type, delete the existing display.
   1.726 +    {
   1.727 +        pHSWDisplay->Shutdown();
   1.728 +        pHSWDisplay.Clear();
   1.729 +    }
   1.730 +
   1.731 +    if(!pHSWDisplay) // Use * below because that for of operator= causes it to inherit the refcount the factory gave the object.
   1.732 +    {
   1.733 +        pHSWDisplay = *OVR::CAPI::HSWDisplay::Factory(apiConfig->Header.API, pHmdDesc, RenderState);
   1.734 +        pHSWDisplay->Enable(pProfile->GetBoolValue("HSW", true));
   1.735 +    }
   1.736 +
   1.737 +    if (pHSWDisplay)
   1.738 +        pHSWDisplay->Initialize(apiConfig); // This is potentially re-initializing it with a new config.
   1.739 +
   1.740 +    return true;
   1.741 +}
   1.742 +
   1.743 +
   1.744 +void  HMDState::SubmitEyeTextures(const ovrPosef renderPose[2],
   1.745 +                                  const ovrTexture eyeTexture[2])
   1.746 +{
   1.747 +    RenderState.EyeRenderPoses[0] = renderPose[0];
   1.748 +    RenderState.EyeRenderPoses[1] = renderPose[1];
   1.749 +
   1.750 +    if (pRenderer)
   1.751 +    {
   1.752 +        pRenderer->SubmitEye(0, &eyeTexture[0]);
   1.753 +        pRenderer->SubmitEye(1, &eyeTexture[1]);
   1.754 +    }
   1.755 +}
   1.756 +
   1.757 +
   1.758 +// I appreciate this is not an idea place for this function, but it didn't seem to be
   1.759 +// being linked properly when in OVR_CAPI.cpp. 
   1.760 +// Please relocate if you know of a better place
   1.761 +ovrBool ovrHmd_CreateDistortionMeshInternal( ovrHmdStruct *  hmd,
   1.762 +                                             ovrEyeType eyeType, ovrFovPort fov,
   1.763 +                                             unsigned int distortionCaps,
   1.764 +                                             ovrDistortionMesh *meshData,
   1.765 +											 float overrideEyeReliefIfNonZero )
   1.766 +{
   1.767 +    if (!meshData)
   1.768 +        return 0;
   1.769 +    HMDState* hmds = (HMDState*)hmd;
   1.770 +
   1.771 +    // Not used now, but Chromatic flag or others could possibly be checked for in the future.
   1.772 +    OVR_UNUSED1(distortionCaps); 
   1.773 +   
   1.774 +#if defined (OVR_CC_MSVC)
   1.775 +    static_assert(sizeof(DistortionMeshVertexData) == sizeof(ovrDistortionVertex), "DistortionMeshVertexData size mismatch");
   1.776 +#endif
   1.777 +	
   1.778 +    // *** Calculate a part of "StereoParams" needed for mesh generation
   1.779 +
   1.780 +    // Note that mesh distortion generation is invariant of RenderTarget UVs, allowing
   1.781 +    // render target size and location to be changed after the fact dynamically. 
   1.782 +    // eyeToSourceUV is computed here for convenience, so that users don't need
   1.783 +    // to call ovrHmd_GetRenderScaleAndOffset unless changing RT dynamically.
   1.784 +
   1.785 +    const HmdRenderInfo&  hmdri          = hmds->RenderState.RenderInfo;    
   1.786 +    StereoEye             stereoEye      = (eyeType == ovrEye_Left) ? StereoEye_Left : StereoEye_Right;
   1.787 +
   1.788 +    DistortionRenderDesc& distortion = hmds->RenderState.Distortion[eyeType];
   1.789 +	if (overrideEyeReliefIfNonZero)
   1.790 +	{
   1.791 +		distortion.Lens = GenerateLensConfigFromEyeRelief(overrideEyeReliefIfNonZero,hmdri);
   1.792 +	}
   1.793 +
   1.794 +    // Find the mapping from TanAngle space to target NDC space.
   1.795 +    ScaleAndOffset2D      eyeToSourceNDC = CreateNDCScaleAndOffsetFromFov(fov);
   1.796 +
   1.797 +    int triangleCount = 0;
   1.798 +    int vertexCount = 0;
   1.799 +
   1.800 +    DistortionMeshCreate((DistortionMeshVertexData**)&meshData->pVertexData,
   1.801 +                         (uint16_t**)&meshData->pIndexData,
   1.802 +                          &vertexCount, &triangleCount,
   1.803 +                          (stereoEye == StereoEye_Right),
   1.804 +                          hmdri, distortion, eyeToSourceNDC);
   1.805 +
   1.806 +    if (meshData->pVertexData)
   1.807 +    {
   1.808 +        // Convert to index
   1.809 +        meshData->IndexCount = triangleCount * 3;
   1.810 +        meshData->VertexCount = vertexCount;
   1.811 +        return 1;
   1.812 +    }
   1.813 +
   1.814 +    return 0;
   1.815 +}
   1.816 +
   1.817 +
   1.818 +
   1.819 +}} // namespace OVR::CAPI