Adding 0.3.2 Linux specific files

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
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+/************************************************************************************
+
+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
+
+