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Diffstat (limited to 'LibOVR/Src/OVR_Linux_HMDDevice.cpp')
| -rw-r--r-- | LibOVR/Src/OVR_Linux_HMDDevice.cpp | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/LibOVR/Src/OVR_Linux_HMDDevice.cpp b/LibOVR/Src/OVR_Linux_HMDDevice.cpp new file mode 100644 index 0000000..98143d3 --- /dev/null +++ b/LibOVR/Src/OVR_Linux_HMDDevice.cpp @@ -0,0 +1,291 @@ +/************************************************************************************ + +Filename : OVR_Linux_HMDDevice.h +Content : Linux HMDDevice implementation +Created : June 17, 2013 +Authors : Brant Lewis + +Copyright : Copyright 2014 Oculus VR, Inc. All Rights reserved. + +Licensed under the Oculus VR Rift SDK License Version 3.1 (the "License"); +you may not use the Oculus VR Rift SDK except in compliance with the License, +which is provided at the time of installation or download, or which +otherwise accompanies this software in either electronic or hard copy form. + +You may obtain a copy of the License at + +http://www.oculusvr.com/licenses/LICENSE-3.1 + +Unless required by applicable law or agreed to in writing, the Oculus VR SDK +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. + +*************************************************************************************/ + +#include "OVR_Linux_HMDDevice.h" + +#include "OVR_Linux_DeviceManager.h" + +#include "OVR_Profile.h" + +#include "../../3rdParty/EDID/edid.h" + +namespace OVR { namespace Linux { + +//------------------------------------------------------------------------------------- + +HMDDeviceCreateDesc::HMDDeviceCreateDesc(DeviceFactory* factory, const String& displayDeviceName, long dispId) + : DeviceCreateDesc(factory, Device_HMD), + DisplayDeviceName(displayDeviceName), + Contents(0), + DisplayId(dispId) +{ + DeviceId = DisplayDeviceName; + + Desktop.X = 0; + Desktop.Y = 0; + ResolutionInPixels = Sizei(0); + ScreenSizeInMeters = Sizef(0.0f); + VCenterFromTopInMeters = 0.0f; + LensSeparationInMeters = 0.0f; +} + +HMDDeviceCreateDesc::HMDDeviceCreateDesc(const HMDDeviceCreateDesc& other) + : DeviceCreateDesc(other.pFactory, Device_HMD), + DeviceId(other.DeviceId), DisplayDeviceName(other.DisplayDeviceName), + Contents(other.Contents), + DisplayId(other.DisplayId) +{ + Desktop.X = other.Desktop.X; + Desktop.Y = other.Desktop.Y; + ResolutionInPixels = other.ResolutionInPixels; + ScreenSizeInMeters = other.ScreenSizeInMeters; + VCenterFromTopInMeters = other.VCenterFromTopInMeters; + LensSeparationInMeters = other.LensSeparationInMeters; +} + +HMDDeviceCreateDesc::MatchResult HMDDeviceCreateDesc::MatchDevice(const DeviceCreateDesc& other, + DeviceCreateDesc** pcandidate) const +{ + if ((other.Type != Device_HMD) || (other.pFactory != pFactory)) + return Match_None; + + // There are several reasons we can come in here: + // a) Matching this HMD Monitor created desc to OTHER HMD Monitor desc + // - Require exact device DeviceId/DeviceName match + // b) Matching SensorDisplayInfo created desc to OTHER HMD Monitor desc + // - This DeviceId is empty; becomes candidate + // c) Matching this HMD Monitor created desc to SensorDisplayInfo desc + // - This other.DeviceId is empty; becomes candidate + + const HMDDeviceCreateDesc& s2 = (const HMDDeviceCreateDesc&) other; + + if ((DeviceId == s2.DeviceId) && + (DisplayId == s2.DisplayId)) + { + // Non-null DeviceId may match while size is different if screen size was overwritten + // by SensorDisplayInfo in prior iteration. + if (!DeviceId.IsEmpty() || + (ScreenSizeInMeters == s2.ScreenSizeInMeters) ) + { + *pcandidate = 0; + return Match_Found; + } + } + + + // DisplayInfo takes precedence, although we try to match it first. + if ((ResolutionInPixels == s2.ResolutionInPixels) && + (ScreenSizeInMeters == s2.ScreenSizeInMeters)) + { + if (DeviceId.IsEmpty() && !s2.DeviceId.IsEmpty()) + { + *pcandidate = const_cast<DeviceCreateDesc*>((const DeviceCreateDesc*)this); + return Match_Candidate; + } + + *pcandidate = 0; + return Match_Found; + } + + // SensorDisplayInfo may override resolution settings, so store as candidate. + if (s2.DeviceId.IsEmpty()) + { + *pcandidate = const_cast<DeviceCreateDesc*>((const DeviceCreateDesc*)this); + return Match_Candidate; + } + // OTHER HMD Monitor desc may initialize DeviceName/Id + else if (DeviceId.IsEmpty()) + { + *pcandidate = const_cast<DeviceCreateDesc*>((const DeviceCreateDesc*)this); + return Match_Candidate; + } + + return Match_None; +} + + +bool HMDDeviceCreateDesc::UpdateMatchedCandidate(const DeviceCreateDesc& other, + bool* newDeviceFlag) +{ + // This candidate was the the "best fit" to apply sensor DisplayInfo to. + OVR_ASSERT(other.Type == Device_HMD); + + const HMDDeviceCreateDesc& s2 = (const HMDDeviceCreateDesc&) other; + + // Force screen size on resolution from SensorDisplayInfo. + // We do this because USB detection is more reliable as compared to HDMI EDID, + // which may be corrupted by splitter reporting wrong monitor + if (s2.DeviceId.IsEmpty()) + { + ScreenSizeInMeters = s2.ScreenSizeInMeters; + Contents |= Contents_Screen; + + if (s2.Contents & HMDDeviceCreateDesc::Contents_Distortion) + { + memcpy(DistortionK, s2.DistortionK, sizeof(float)*4); + // TODO: DistortionEqn + Contents |= Contents_Distortion; + } + DeviceId = s2.DeviceId; + DisplayId = s2.DisplayId; + DisplayDeviceName = s2.DisplayDeviceName; + Desktop.X = s2.Desktop.X; + Desktop.Y = s2.Desktop.Y; + if (newDeviceFlag) *newDeviceFlag = true; + } + else if (DeviceId.IsEmpty()) + { + // This branch is executed when 'fake' HMD descriptor is being replaced by + // the real one. + DeviceId = s2.DeviceId; + DisplayId = s2.DisplayId; + DisplayDeviceName = s2.DisplayDeviceName; + Desktop.X = s2.Desktop.X; + Desktop.Y = s2.Desktop.Y; + + // ScreenSize and Resolution are NOT assigned here, since they may have + // come from a sensor DisplayInfo (which has precedence over HDMI). + + if (newDeviceFlag) *newDeviceFlag = true; + } + else + { + if (newDeviceFlag) *newDeviceFlag = false; + } + + return true; +} + +bool HMDDeviceCreateDesc::MatchDevice(const String& path) +{ + return DeviceId.CompareNoCase(path) == 0; +} + +//------------------------------------------------------------------------------------- +// ***** HMDDeviceFactory + +HMDDeviceFactory &HMDDeviceFactory::GetInstance() +{ + static HMDDeviceFactory instance; + return instance; +} + +void HMDDeviceFactory::EnumerateDevices(EnumerateVisitor& visitor) +{ + // For now we'll assume the Rift DK1 is attached in extended monitor mode. Ultimately we need to + // use XFree86 to enumerate X11 screens in case the Rift is attached as a separate screen. + + bool foundHMD = false; + Display* display = XOpenDisplay(NULL); + XRRScreenResources *screen = XRRGetScreenResources(display, DefaultRootWindow(display)); + for (int iscres = screen->noutput - 1; iscres >= 0; --iscres) { + RROutput output = screen->outputs[iscres]; + MonitorInfo * mi = read_edid_data(display, output); + if (mi == NULL) { + continue; + } + + XRROutputInfo * info = XRRGetOutputInfo (display, screen, output); + if (info && (0 == memcmp(mi->manufacturer_code, "OVR", 3))) { + + // Generate a device ID string similar to the way Windows does it + char device_id[32]; + OVR_sprintf(device_id, 32, "%s%04d", mi->manufacturer_code, mi->product_code); + + // The default monitor coordinates + int mx = 0; + int my = 0; + int mwidth = 1280; + int mheight = 800; + + if (info->connection == RR_Connected && info->crtc) { + XRRCrtcInfo * crtc_info = XRRGetCrtcInfo (display, screen, info->crtc); + if (crtc_info) + { + mx = crtc_info->x; + my = crtc_info->y; + //mwidth = crtc_info->width; + //mheight = crtc_info->height; + XRRFreeCrtcInfo(crtc_info); + } + } + + String deviceID = device_id; + HMDDeviceCreateDesc hmdCreateDesc(this, deviceID, iscres); + + // Hard-coded defaults in case the device doesn't have the data itself. + if (strstr(device_id, "OVR0003")) + { // DK2 prototypes and variants (default to HmdType_DK2) + hmdCreateDesc.SetScreenParameters(mx, my, 1920, 1080, 0.12576f, 0.07074f, 0.12576f*0.5f, 0.0635f ); + } + else if (strstr(device_id, "OVR0002")) + { // HD Prototypes (default to HmdType_DKHDProto) + hmdCreateDesc.SetScreenParameters(mx, my, 1920, 1080, 0.12096f, 0.06804f, 0.06804f*0.5f, 0.0635f ); + } + else if (strstr(device_id, "OVR0001")) + { // DK1 + hmdCreateDesc.SetScreenParameters(mx, my, mwidth, mheight, 0.14976f, 0.0936f, 0.0936f*0.5f, 0.0635f); + } + else if (strstr(device_id, "OVR00")) + { // Future Oculus HMD devices (default to DK1 dimensions) + hmdCreateDesc.SetScreenParameters(mx, my, mwidth, mheight, 0.14976f, 0.0936f, 0.0936f*0.5f, 0.0635f); + } + else + { // Duct-tape prototype + hmdCreateDesc.SetScreenParameters(mx, my, mwidth, mheight, 0.12096f, 0.0756f, 0.0756f*0.5f, 0.0635f); + } + + OVR_DEBUG_LOG_TEXT(("DeviceManager - HMD Found %s - %s\n", device_id, mi->dsc_product_name)); + + // Notify caller about detected device. This will call EnumerateAddDevice + // if the this is the first time device was detected. + visitor.Visit(hmdCreateDesc); + foundHMD = true; + break; + } // if + + XRRFreeOutputInfo(info); + delete mi; + } // for + XRRFreeScreenResources(screen); + + + // Real HMD device is not found; however, we still may have a 'fake' HMD + // device created via SensorDeviceImpl::EnumerateHMDFromSensorDisplayInfo. + // Need to find it and set 'Enumerated' to true to avoid Removal notification. + if (!foundHMD) + { + Ptr<DeviceCreateDesc> hmdDevDesc = getManager()->FindDevice("", Device_HMD); + if (hmdDevDesc) + hmdDevDesc->Enumerated = true; + } +} + +#include "OVR_Common_HMDDevice.cpp" + +}} // namespace OVR::Linux + + |