Remove VR hardware support.

This resolves #881

30 files changed, 0 insertions, 3579 deletions

diff --git a/gfx/vr/osvr/ClientKit/ClientKitC.h b/gfx/vr/osvr/ClientKit/ClientKitC.h
deleted file mode 100644
index 8309e890d..000000000
--- a/gfx/vr/osvr/ClientKit/ClientKitC.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ClientKitC_h_GUID_8D7DF104_892D_4CB5_2302_7C6BB5BC985C
-#define INCLUDED_ClientKitC_h_GUID_8D7DF104_892D_4CB5_2302_7C6BB5BC985C
-
-#include <osvr/ClientKit/ContextC.h>
-#include <osvr/ClientKit/InterfaceC.h>
-#include <osvr/ClientKit/InterfaceCallbackC.h>
-#include <osvr/ClientKit/SystemCallbackC.h>
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/ContextC.h b/gfx/vr/osvr/ClientKit/ContextC.h
deleted file mode 100644
index e07e1b4a7..000000000
--- a/gfx/vr/osvr/ClientKit/ContextC.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @todo Apply annotation macros
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ContextC_h_GUID_3790F330_2425_4486_4C9F_20C300D7DED3
-#define INCLUDED_ContextC_h_GUID_3790F330_2425_4486_4C9F_20C300D7DED3
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @brief Initialize the library.
-
-    @param applicationIdentifier A null terminated string identifying your
-   application. Reverse DNS format strongly suggested.
-    @param flags initialization options (reserved) - pass 0 for now.
-
-    @returns Client context - will be needed for subsequent calls
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ClientContext osvrClientInit(
-    const char applicationIdentifier[], uint32_t flags OSVR_CPP_ONLY(= 0));
-
-/** @brief Updates the state of the context - call regularly in your mainloop.
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientUpdate(OSVR_ClientContext ctx);
-
-/** @brief Checks to see if the client context is fully started up and connected
-    properly to a server.
-
-    If this reports that the client context is not OK, there may not be a server
-    running, or you may just have to call osvrClientUpdate() a few times to
-    permit startup to finish. The return value of this call will not change from
-    failure to success without calling osvrClientUpdate().
-
-    @param ctx Client context
-
-    @return OSVR_RETURN_FAILURE if not yet fully connected/initialized, or if
-    some other error (null context) occurs.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientCheckStatus(OSVR_ClientContext ctx);
-
-/** @brief Shutdown the library.
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientShutdown(OSVR_ClientContext ctx);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/DisplayC.h b/gfx/vr/osvr/ClientKit/DisplayC.h
deleted file mode 100644
index 75155e6b3..000000000
--- a/gfx/vr/osvr/ClientKit/DisplayC.h
+++ /dev/null
@@ -1,506 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_DisplayC_h_GUID_8658EDC9_32A2_49A2_5F5C_10F67852AE74
-#define INCLUDED_DisplayC_h_GUID_8658EDC9_32A2_49A2_5F5C_10F67852AE74
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/RenderingTypesC.h>
-#include <osvr/Util/MatrixConventionsC.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/BoolC.h>
-#include <osvr/Util/RadialDistortionParametersC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup ClientKit
-    @{
-    @name Display API
-    @{
-*/
-
-/** @brief Opaque type of a display configuration. */
-typedef struct OSVR_DisplayConfigObject *OSVR_DisplayConfig;
-
-/** @brief Allocates a display configuration object populated with data from the
-    OSVR system.
-
-    Before this call will succeed, your application will need to be correctly
-   and fully connected to an OSVR server. You may consider putting this call in
-   a loop alternating with osvrClientUpdate() until this call succeeds.
-
-    Data provided by a display configuration object:
-
-    - The logical display topology (number and relationship of viewers, eyes,
-        and surfaces), which remains constant throughout the life of the
-        configuration object. (A method of notification of change here is TBD).
-    - Pose data for viewers (not required for rendering) and pose/view data for
-        eyes (used for rendering) which is based on tracker data: if used, these
-        should be queried every frame.
-    - Projection matrix data for surfaces, which while in current practice may
-        be relatively unchanging, we are not guaranteeing them to be constant:
-        these should be queried every frame.
-    - Video-input-relative viewport size/location for a surface: would like this
-        to be variable, but probably not feasible. If you have input, please
-        comment on the dev mailing list.
-    - Per-surface distortion strategy priorities/availabilities: constant. Note
-        the following, though...
-    - Per-surface distortion strategy parameters: variable, request each frame.
-        (Could make constant with a notification if needed?)
-
-    Important note: While most of this data is immediately available if you are
-   successful in getting a display config object, the pose-based data (viewer
-   pose, eye pose, eye view matrix) needs tracker state, so at least one (and in
-   practice, typically more) osvrClientUpdate() must be performed before a new
-   tracker report is available to populate that state. See
-   osvrClientCheckDisplayStartup() to query if all startup data is available.
-
-    @todo Decide if relative viewport should be constant in a display config,
-   and update docs accordingly.
-
-    @todo Decide if distortion params should be constant in a display config,
-   and update docs accordingly.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or some other
-    error occurred, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetDisplay(OSVR_ClientContext ctx, OSVR_DisplayConfig *disp);
-
-/** @brief Frees a display configuration object. The corresponding context must
-    still be open.
-
-    If you fail to call this, it will be automatically called as part of
-    clean-up when the corresponding context is closed.
-
-    @return OSVR_RETURN_FAILURE if a null config was passed, or if the given
-    display object was already freed.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientFreeDisplay(OSVR_DisplayConfig disp);
-
-/** @brief Checks to see if a display is fully configured and ready, including
-    having received its first pose update.
-
-    Once this first succeeds, it will continue to succeed for the lifetime of
-    the display config object, so it is not necessary to keep calling once you
-    get a successful result.
-
-    @return OSVR_RETURN_FAILURE if a null config was passed, or if the given
-    display config object was otherwise not ready for full use.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientCheckDisplayStartup(OSVR_DisplayConfig disp);
-
-/** @brief A display config can have one or more display inputs to pass pixels
-    over (HDMI/DVI connections, etc): retrieve the number of display inputs in
-   the current configuration.
-
-    @param disp Display config object.
-    @param[out] numDisplayInputs Number of display inputs in the logical display
-    topology, **constant** throughout the active, valid lifetime of a display
-    config object.
-
-    @sa OSVR_DisplayInputCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in
-   which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumDisplayInputs(
-    OSVR_DisplayConfig disp, OSVR_DisplayInputCount *numDisplayInputs);
-
-/** @brief Retrieve the pixel dimensions of a given display input for a display
-   config
-
-    @param disp Display config object.
-    @param displayInputIndex The zero-based index of the display input.
-    @param[out] width Width (in pixels) of the display input.
-    @param[out] height Height (in pixels) of the display input.
-
-    The out parameters are **constant** throughout the active, valid lifetime of
-    a display config object.
-
-    @sa OSVR_DisplayDimension
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in
-   which case the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetDisplayDimensions(
-    OSVR_DisplayConfig disp, OSVR_DisplayInputCount displayInputIndex,
-    OSVR_DisplayDimension *width, OSVR_DisplayDimension *height);
-
-/** @brief A display config can have one (or theoretically more) viewers:
-    retrieve the viewer count.
-
-    @param disp Display config object.
-    @param[out] viewers Number of viewers in the logical display topology,
-    **constant** throughout the active, valid lifetime of a display config
-    object.
-
-    @sa OSVR_ViewerCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-   the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetNumViewers(OSVR_DisplayConfig disp, OSVR_ViewerCount *viewers);
-
-/** @brief Get the pose of a viewer in a display config.
-
-    Note that there may not necessarily be any surfaces rendered from this pose
-    (it's the unused "center" eye in a stereo configuration, for instance) so
-    only use this if it makes integration into your engine or existing
-    applications (not originally designed for stereo) easier.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the pose argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerPose(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_Pose3 *pose);
-
-/** @brief Each viewer in a display config can have one or more "eyes" which
-    have a substantially similar pose: get the count.
-
-    @param disp Display config object.
-    @param viewer Viewer ID
-    @param[out] eyes Number of eyes for this viewer in the logical display
-   topology, **constant** throughout the active, valid lifetime of a display
-   config object
-
-    @sa OSVR_EyeCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumEyesForViewer(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount *eyes);
-
-/** @brief Get the "viewpoint" for the given eye of a viewer in a display
-   config.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param[out] pose Room-space pose (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the pose argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyePose(OSVR_DisplayConfig disp, OSVR_ViewerCount viewer,
-                           OSVR_EyeCount eye, OSVR_Pose3 *pose);
-
-/** @brief Get the view matrix (inverse of pose) for the given eye of a
-    viewer in a display config - matrix of **doubles**.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] mat Pass a double[::OSVR_MATRIX_SIZE] to get the transformation
-    matrix from room space to eye space (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerEyeViewMatrixd(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_MatrixConventions flags, double *mat);
-
-/** @brief Get the view matrix (inverse of pose) for the given eye of a
-    viewer in a display config - matrix of **floats**.
-
-    Will only succeed if osvrClientCheckDisplayStartup() succeeds.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] mat Pass a float[::OSVR_MATRIX_SIZE] to get the transformation
-    matrix from room space to eye space (not relative to pose of the viewer)
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed or no pose was
-    yet available, in which case the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetViewerEyeViewMatrixf(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_MatrixConventions flags, float *mat);
-
-/** @brief Each eye of each viewer in a display config has one or more surfaces
-    (aka "screens") on which content should be rendered.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param[out] surfaces Number of surfaces (numbered [0, surfaces - 1]) for the
-    given viewer and eye. **Constant** throughout the active, valid lifetime of
-    a display config object.
-
-    @sa OSVR_SurfaceCount
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrClientGetNumSurfacesForViewerEye(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount *surfaces);
-
-/** @brief Get the dimensions/location of the viewport **within the display
-    input** for a surface seen by an eye of a viewer in a display config. (This
-    does not include other video inputs that may be on a single virtual desktop,
-    etc. or explicitly account for display configurations that use multiple
-    video inputs. It does not necessarily indicate that a viewport in the sense
-    of glViewport must be created with these parameters, though the parameter
-    order matches for convenience.)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] left Output: Distance in pixels from the left of the video input
-    to the left of the viewport.
-    @param[out] bottom Output: Distance in pixels from the bottom of the video
-    input to the bottom of the viewport.
-    @param[out] width Output: Width of viewport in pixels.
-    @param[out] height Output: Height of viewport in pixels.
-
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetRelativeViewportForViewerEyeSurface(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_ViewportDimension *left,
-    OSVR_ViewportDimension *bottom, OSVR_ViewportDimension *width,
-    OSVR_ViewportDimension *height);
-
-/** @brief Get the index of the display input for a surface seen by an eye of a
-   viewer in a display config.
-
-    This is the OSVR-assigned display input: it may not (and in practice,
-    usually will not) match any platform-specific display indices. This function
-    exists to associate surfaces with video inputs as enumerated by
-    osvrClientGetNumDisplayInputs().
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] displayInput Zero-based index of the display input pixels for
-    this surface are tranmitted over.
-
-    This association is **constant** throughout the active, valid lifetime of a
-    display config object.
-
-    @sa osvrClientGetNumDisplayInputs(),
-    osvrClientGetRelativeViewportForViewerEyeSurface()
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which
-    case the output argument is unmodified.
- */
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceDisplayInputIndex(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_DisplayInputCount *displayInput);
-
-/** @brief Get the projection matrix for a surface seen by an eye of a viewer
-    in a display config. (double version)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param near Distance from viewpoint to near clipping plane - must be
-    positive.
-    @param far Distance from viewpoint to far clipping plane - must be positive
-    and not equal to near, typically greater than near.
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] matrix Output projection matrix: supply an array of 16
-    (::OSVR_MATRIX_SIZE) doubles.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionMatrixd(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, double near, double far,
-    OSVR_MatrixConventions flags, double *matrix);
-
-/** @brief Get the projection matrix for a surface seen by an eye of a viewer
-    in a display config. (float version)
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param near Distance to near clipping plane - must be nonzero, typically
-    positive.
-    @param far Distance to far clipping plane - must be nonzero, typically
-    positive and greater than near.
-    @param flags Bitwise OR of matrix convention flags (see @ref MatrixFlags)
-    @param[out] matrix Output projection matrix: supply an array of 16
-    (::OSVR_MATRIX_SIZE) floats.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionMatrixf(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, float near, float far,
-    OSVR_MatrixConventions flags, float *matrix);
-
-/** @brief Get the clipping planes (positions at unit distance) for a surface
-   seen by an eye of a viewer
-    in a display config.
-
-    This is only for use in integrations that cannot accept a fully-formulated
-    projection matrix as returned by
-    osvrClientGetViewerEyeSurfaceProjectionMatrixf() or
-    osvrClientGetViewerEyeSurfaceProjectionMatrixd(), and may not necessarily
-    provide the same optimizations.
-
-    As all the planes are given at unit (1) distance, before passing these
-   planes to a consuming function in your application/engine, you will typically
-   divide them by your near clipping plane distance.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] left Distance to left clipping plane
-    @param[out] right Distance to right clipping plane
-    @param[out] bottom Distance to bottom clipping plane
-    @param[out] top Distance to top clipping plane
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output arguments are unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceProjectionClippingPlanes(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, double *left, double *right, double *bottom,
-    double *top);
-
-/** @brief Determines if a surface seen by an eye of a viewer in a display
-    config requests some distortion to be performed.
-
-    This simply reports true or false, and does not specify which kind of
-    distortion implementations have been parameterized for this display. For
-    each distortion implementation your application supports, you'll want to
-    call the corresponding priority function to find out if it is available.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] distortionRequested Output parameter: whether distortion is
-    requested. **Constant** throughout the active, valid lifetime of a display
-    config object.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientDoesViewerEyeSurfaceWantDistortion(OSVR_DisplayConfig disp,
-                                             OSVR_ViewerCount viewer,
-                                             OSVR_EyeCount eye,
-                                             OSVR_SurfaceCount surface,
-                                             OSVR_CBool *distortionRequested);
-
-/** @brief Returns the priority/availability of radial distortion parameters for
-    a surface seen by an eye of a viewer in a display config.
-
-    If osvrClientDoesViewerEyeSurfaceWantDistortion() reports false, then the
-    display does not request distortion of any sort, and thus neither this nor
-    any other distortion strategy priority function will report an "available"
-    priority.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] priority Output: the priority level. Negative values
-    (canonically OSVR_DISTORTION_PRIORITY_UNAVAILABLE) indicate this technique
-    not available, higher values indicate higher preference for the given
-    technique based on the device's description. **Constant** throughout the
-    active, valid lifetime of a display config object.
-
-    @return OSVR_RETURN_FAILURE if invalid parameters were passed, in which case
-    the output argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceRadialDistortionPriority(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_DistortionPriority *priority);
-
-/** @brief Returns the radial distortion parameters, if known/requested, for a
-    surface seen by an eye of a viewer in a display config.
-
-    Will only succeed if osvrClientGetViewerEyeSurfaceRadialDistortionPriority()
-    reports a non-negative priority.
-
-    @param disp Display config object
-    @param viewer Viewer ID
-    @param eye Eye ID
-    @param surface Surface ID
-    @param[out] params Output: the parameters for radial distortion
-
-    @return OSVR_RETURN_FAILURE if this surface does not have these parameters
-    described, or if invalid parameters were passed, in which case the output
-    argument is unmodified.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetViewerEyeSurfaceRadialDistortion(
-    OSVR_DisplayConfig disp, OSVR_ViewerCount viewer, OSVR_EyeCount eye,
-    OSVR_SurfaceCount surface, OSVR_RadialDistortionParameters *params);
-
-/** @}
-    @}
-*/
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/Export.h b/gfx/vr/osvr/ClientKit/Export.h
deleted file mode 100644
index 94d5f44f4..000000000
--- a/gfx/vr/osvr/ClientKit/Export.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/** @file
-    @brief Automatically-generated export header - do not edit!
-
-    @date 2016
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-// Copyright 2016 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-
-#ifndef OSVR_CLIENTKIT_EXPORT_H
-#define OSVR_CLIENTKIT_EXPORT_H
-
-#ifdef OSVR_CLIENTKIT_STATIC_DEFINE
-#  define OSVR_CLIENTKIT_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT
-#endif
-
-/* Per-compiler advance preventative definition */
-#if defined(__BORLANDC__) || defined(__CODEGEARC__) || defined(__HP_aCC) ||    \
-    defined(__PGI) || defined(__WATCOMC__)
-/* Compilers that don't support deprecated, according to CMake. */
-#  ifndef OSVR_CLIENTKIT_DEPRECATED
-#    define OSVR_CLIENTKIT_DEPRECATED
-#  endif
-#endif
-
-/* Check for attribute support */
-#if defined(__INTEL_COMPILER)
-/* Checking before GNUC because Intel implements GNU extensions,
- * so it chooses to define __GNUC__ as well. */
-#  if __INTEL_COMPILER >= 1200
-/* Intel compiler 12.0 or newer can handle these attributes per CMake */
-#    define OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-
-#elif defined(__GNUC__)
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
-/* GCC 4.2+ */
-#    define OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-#endif
-
-/* Per-platform defines */
-#if defined(_MSC_VER)
-/* MSVC on Windows */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  ifdef osvrClientKit_EXPORTS
-      /* We are building this library */
-#    define OSVR_CLIENTKIT_EXPORT __declspec(dllexport)
-#  else
-      /* We are using this library */
-#    define OSVR_CLIENTKIT_EXPORT __declspec(dllimport)
-#  endif
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __declspec(deprecated)
-#endif
-
-#elif defined(_WIN32) && defined(__GNUC__)
-/* GCC-compatible on Windows */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  ifdef osvrClientKit_EXPORTS
-      /* We are building this library */
-#    define OSVR_CLIENTKIT_EXPORT __attribute__((dllexport))
-#  else
-      /* We are using this library */
-#    define OSVR_CLIENTKIT_EXPORT __attribute__((dllimport))
-#  endif
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#elif defined(OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES) ||         \
-    (defined(__APPLE__) && defined(__MACH__))
-/* GCC4.2+ compatible (assuming something *nix-like) and Mac OS X */
-/* (The first macro is defined at the top of the file, if applicable) */
-/* see https://gcc.gnu.org/wiki/Visibility */
-
-#ifndef OSVR_CLIENTKIT_EXPORT
-  /* We are building/using this library */
-#  define OSVR_CLIENTKIT_EXPORT __attribute__((visibility("default")))
-#endif
-
-#ifndef OSVR_CLIENTKIT_NO_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT __attribute__((visibility("hidden")))
-#endif
-
-#ifndef OSVR_CLIENTKIT_DEPRECATED
-#  define OSVR_CLIENTKIT_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#endif
-/* End of platform ifdefs */
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_EXPORT
-#  define OSVR_CLIENTKIT_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_NO_EXPORT
-#  define OSVR_CLIENTKIT_NO_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_DEPRECATED_EXPORT
-#  define OSVR_CLIENTKIT_DEPRECATED_EXPORT OSVR_CLIENTKIT_EXPORT OSVR_CLIENTKIT_DEPRECATED
-#endif
-
-/* fallback def */
-#ifndef OSVR_CLIENTKIT_DEPRECATED_NO_EXPORT
-#  define OSVR_CLIENTKIT_DEPRECATED_NO_EXPORT OSVR_CLIENTKIT_NO_EXPORT OSVR_CLIENTKIT_DEPRECATED
-#endif
-
-/* Clean up after ourselves */
-#undef OSVR_CLIENTKIT_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceC.h b/gfx/vr/osvr/ClientKit/InterfaceC.h
deleted file mode 100644
index 728350536..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceC.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_InterfaceC_h_GUID_D90BBAA6_AD62_499D_C023_2F6ED8987C17
-#define INCLUDED_InterfaceC_h_GUID_D90BBAA6_AD62_499D_C023_2F6ED8987C17
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup ClientKit
-@{
-*/
-
-/** @brief Get the interface associated with the given path.
-    @param ctx Client context
-    @param path A resource path (null-terminated string)
-    @param[out] iface The interface object. May be freed when no longer needed,
-   otherwise it will be freed when the context is closed.
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientGetInterface(OSVR_ClientContext ctx, const char path[],
-                       OSVR_ClientInterface *iface);
-
-/** @brief Free an interface object before context closure.
-
-    @param ctx Client context
-    @param iface The interface object
-
-    @returns OSVR_RETURN_SUCCESS unless a null context or interface was passed
-   or the given interface was not found in the context (i.e. had already been
-   freed)
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientFreeInterface(OSVR_ClientContext ctx, OSVR_ClientInterface iface);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h b/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h
deleted file mode 100644
index dde1cef97..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceCallbackC.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_InterfaceCallbacksC_h_GUID_8F16E6CB_F998_4ABC_5B6B_4FC1E4B71BC9
-#define INCLUDED_InterfaceCallbacksC_h_GUID_8F16E6CB_F998_4ABC_5B6B_4FC1E4B71BC9
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/ClientCallbackTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-#define OSVR_INTERFACE_CALLBACK_METHOD(TYPE)                                   \
-    /** @brief Register a callback for TYPE reports on an interface */         \
-    OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrRegister##TYPE##Callback(        \
-        OSVR_ClientInterface iface, OSVR_##TYPE##Callback cb, void *userdata);
-
-OSVR_INTERFACE_CALLBACK_METHOD(Pose)
-OSVR_INTERFACE_CALLBACK_METHOD(Position)
-OSVR_INTERFACE_CALLBACK_METHOD(Orientation)
-OSVR_INTERFACE_CALLBACK_METHOD(Velocity)
-OSVR_INTERFACE_CALLBACK_METHOD(LinearVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(AngularVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(Acceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(LinearAcceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(AngularAcceleration)
-OSVR_INTERFACE_CALLBACK_METHOD(Button)
-OSVR_INTERFACE_CALLBACK_METHOD(Analog)
-OSVR_INTERFACE_CALLBACK_METHOD(Imaging)
-OSVR_INTERFACE_CALLBACK_METHOD(Location2D)
-OSVR_INTERFACE_CALLBACK_METHOD(Direction)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTracker2D)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTracker3D)
-OSVR_INTERFACE_CALLBACK_METHOD(EyeTrackerBlink)
-OSVR_INTERFACE_CALLBACK_METHOD(NaviVelocity)
-OSVR_INTERFACE_CALLBACK_METHOD(NaviPosition)
-
-#undef OSVR_INTERFACE_CALLBACK_METHOD
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/InterfaceStateC.h b/gfx/vr/osvr/ClientKit/InterfaceStateC.h
deleted file mode 100644
index edf9f085c..000000000
--- a/gfx/vr/osvr/ClientKit/InterfaceStateC.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_InterfaceStateC_h_GUID_8F85D178_74B9_4AA9_4E9E_243089411408
-#define INCLUDED_InterfaceStateC_h_GUID_8F85D178_74B9_4AA9_4E9E_243089411408
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-#include <osvr/Util/ClientReportTypesC.h>
-#include <osvr/Util/TimeValueC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-#define OSVR_CALLBACK_METHODS(TYPE)                                            \
-    /** @brief Get TYPE state from an interface, returning failure if none     \
-     * exists */                                                               \
-    OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode osvrGet##TYPE##State(                \
-        OSVR_ClientInterface iface, struct OSVR_TimeValue *timestamp,          \
-        OSVR_##TYPE##State *state);
-
-OSVR_CALLBACK_METHODS(Pose)
-OSVR_CALLBACK_METHODS(Position)
-OSVR_CALLBACK_METHODS(Orientation)
-OSVR_CALLBACK_METHODS(Velocity)
-OSVR_CALLBACK_METHODS(LinearVelocity)
-OSVR_CALLBACK_METHODS(AngularVelocity)
-OSVR_CALLBACK_METHODS(Acceleration)
-OSVR_CALLBACK_METHODS(LinearAcceleration)
-OSVR_CALLBACK_METHODS(AngularAcceleration)
-OSVR_CALLBACK_METHODS(Button)
-OSVR_CALLBACK_METHODS(Analog)
-OSVR_CALLBACK_METHODS(Location2D)
-OSVR_CALLBACK_METHODS(Direction)
-OSVR_CALLBACK_METHODS(EyeTracker2D)
-OSVR_CALLBACK_METHODS(EyeTracker3D)
-OSVR_CALLBACK_METHODS(EyeTrackerBlink)
-OSVR_CALLBACK_METHODS(NaviVelocity)
-OSVR_CALLBACK_METHODS(NaviPosition)
-
-#undef OSVR_CALLBACK_METHODS
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/SystemCallbackC.h b/gfx/vr/osvr/ClientKit/SystemCallbackC.h
deleted file mode 100644
index 2476d5f21..000000000
--- a/gfx/vr/osvr/ClientKit/SystemCallbackC.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_SystemCallbackC_h_GUID_543F3F04_343E_4389_08A0_DEA988EC23F7
-#define INCLUDED_SystemCallbackC_h_GUID_543F3F04_343E_4389_08A0_DEA988EC23F7
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/ClientKit/TransformsC.h b/gfx/vr/osvr/ClientKit/TransformsC.h
deleted file mode 100644
index 183497dfd..000000000
--- a/gfx/vr/osvr/ClientKit/TransformsC.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/** @file
-    @brief Header controlling the OSVR transformation hierarchy
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_TransformsC_h_GUID_5B5B7438_42D4_4095_E48A_90E2CC13498E
-#define INCLUDED_TransformsC_h_GUID_5B5B7438_42D4_4095_E48A_90E2CC13498E
-
-/* Internal Includes */
-#include <osvr/ClientKit/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/ReturnCodesC.h>
-#include <osvr/Util/ClientOpaqueTypesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @brief Updates the internal "room to world" transformation (applied to all
-    tracker data for this client context instance) based on the user's head
-    orientation, so that the direction the user is facing becomes -Z to your
-    application. Only rotates about the Y axis (yaw).
-
-    Note that this method internally calls osvrClientUpdate() to get a head pose
-    so your callbacks may be called during its execution!
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientSetRoomRotationUsingHead(OSVR_ClientContext ctx);
-
-/** @brief Clears/resets the internal "room to world" transformation back to an
-   identity transformation - that is, clears the effect of any other
-   manipulation of the room to world transform.
-
-    @param ctx Client context
-*/
-OSVR_CLIENTKIT_EXPORT OSVR_ReturnCode
-osvrClientClearRoomToWorldTransform(OSVR_ClientContext ctx);
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/APIBaseC.h b/gfx/vr/osvr/Util/APIBaseC.h
deleted file mode 100644
index 4abe38550..000000000
--- a/gfx/vr/osvr/Util/APIBaseC.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/** @file
-    @brief Header providing basic C macros for defining API headers.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_APIBaseC_h_GUID_C5A2E769_2ADC_429E_D250_DF0883E6E5DB
-#define INCLUDED_APIBaseC_h_GUID_C5A2E769_2ADC_429E_D250_DF0883E6E5DB
-
-#ifdef __cplusplus
-#define OSVR_C_ONLY(X)
-#define OSVR_CPP_ONLY(X) X
-#define OSVR_EXTERN_C_BEGIN extern "C" {
-#define OSVR_EXTERN_C_END }
-#define OSVR_INLINE inline
-#else
-#define OSVR_C_ONLY(X) X
-#define OSVR_CPP_ONLY(X)
-#define OSVR_EXTERN_C_BEGIN
-#define OSVR_EXTERN_C_END
-#ifdef _MSC_VER
-#define OSVR_INLINE static __inline
-#else
-#define OSVR_INLINE static inline
-#endif
-#endif
-
-#endif
diff --git a/gfx/vr/osvr/Util/AnnotationMacrosC.h b/gfx/vr/osvr/Util/AnnotationMacrosC.h
deleted file mode 100644
index e086608c1..000000000
--- a/gfx/vr/osvr/Util/AnnotationMacrosC.h
+++ /dev/null
@@ -1,232 +0,0 @@
-/** @file
-    @brief Header containing macros for source-level annotation.
-
-    In theory, supporting MSVC SAL, as well as compatible GCC and
-    Clang attributes. In practice, expanded as time allows and requires.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_AnnotationMacrosC_h_GUID_48538D9B_35E3_4E9A_D2B0_D83D51DD5900
-#define INCLUDED_AnnotationMacrosC_h_GUID_48538D9B_35E3_4E9A_D2B0_D83D51DD5900
-
-#ifndef OSVR_DISABLE_ANALYSIS
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1700)
-/* Visual C++ (2012 and newer) */
-/* Using SAL attribute format:
- * http://msdn.microsoft.com/en-us/library/ms182032(v=vs.120).aspx */
-
-#include <sal.h>
-
-#define OSVR_IN _In_
-#define OSVR_IN_PTR _In_
-#define OSVR_IN_OPT _In_opt_
-#define OSVR_IN_STRZ _In_z_
-#define OSVR_IN_READS(NUM_ELEMENTS) _In_reads_(NUM_ELEMENTS)
-
-#define OSVR_OUT _Out_
-#define OSVR_OUT_PTR _Outptr_
-#define OSVR_OUT_OPT _Out_opt_
-
-#define OSVR_INOUT _Inout_
-#define OSVR_INOUT_PTR _Inout_
-
-#define OSVR_RETURN_WARN_UNUSED _Must_inspect_result_
-#define OSVR_RETURN_SUCCESS_CONDITION(X) _Return_type_success_(X)
-
-/* end of msvc section */
-#elif defined(__GNUC__) && (__GNUC__ >= 4)
-/* section for GCC and GCC-alikes */
-
-#if defined(__clang__)
-/* clang-specific section */
-#endif
-
-#define OSVR_FUNC_NONNULL(X) __attribute__((__nonnull__ X))
-#define OSVR_RETURN_WARN_UNUSED __attribute__((warn_unused_result))
-
-/* end of gcc section and compiler detection */
-#endif
-
-/* end of ndef disable analysis */
-#endif
-
-/* Fallback declarations */
-/**
-@defgroup annotation_macros Static analysis annotation macros
-@brief Wrappers for Microsoft's SAL annotations and others
-@ingroup Util
-
-Use of these is optional, but recommended particularly for C APIs,
-as well as any methods handling a buffer with a length.
-@{
-*/
-/** @name Parameter annotations
-
-    These indicate the role and valid values for parameters to functions.
-
-    At most one of these should be placed before a parameter's type name in the
-   function parameter list, in both the declaration and definition. (They must
-   match!)
-   @{
-*/
-/** @def OSVR_IN
-    @brief Indicates a required function parameter that serves only as input.
-*/
-#ifndef OSVR_IN
-#define OSVR_IN
-#endif
-
-/** @def OSVR_IN_PTR
-    @brief Indicates a required pointer (non-null) function parameter that
-    serves only as input.
-*/
-#ifndef OSVR_IN_PTR
-#define OSVR_IN_PTR
-#endif
-
-/** @def OSVR_IN_OPT
-    @brief Indicates a function parameter (pointer) that serves only as input,
-   but is optional and might be NULL.
-*/
-#ifndef OSVR_IN_OPT
-#define OSVR_IN_OPT
-#endif
-
-/** @def OSVR_IN_STRZ
-    @brief Indicates a null-terminated string function parameter that serves
-   only as input.
-*/
-#ifndef OSVR_IN_STRZ
-#define OSVR_IN_STRZ
-#endif
-
-/** @def OSVR_IN_READS(NUM_ELEMENTS)
-    @brief Indicates a buffer containing input with the specified number of
-   elements.
-
-    The specified number of elements is typically the name of another parameter.
-*/
-#ifndef OSVR_IN_READS
-#define OSVR_IN_READS(NUM_ELEMENTS)
-#endif
-
-/** @def OSVR_OUT
-    @brief Indicates a required function parameter that serves only as output.
-    In C code, since this usually means "pointer", you probably want
-   OSVR_OUT_PTR instead.
-*/
-#ifndef OSVR_OUT
-#define OSVR_OUT
-#endif
-
-/** @def OSVR_OUT_PTR
-    @brief Indicates a required pointer (non-null) function parameter that
-    serves only as output.
-*/
-#ifndef OSVR_OUT_PTR
-#define OSVR_OUT_PTR
-#endif
-
-/** @def OSVR_OUT_OPT
-    @brief Indicates a function parameter (pointer) that serves only as output,
-   but is optional and might be NULL
-*/
-#ifndef OSVR_OUT_OPT
-#define OSVR_OUT_OPT
-#endif
-
-/** @def OSVR_INOUT
-    @brief Indicates a required function parameter that is both read and written
-   to.
-
-    In C code, since this usually means "pointer", you probably want
-   OSVR_INOUT_PTR instead.
-*/
-#ifndef OSVR_INOUT
-#define OSVR_INOUT
-#endif
-
-/** @def OSVR_INOUT_PTR
-    @brief Indicates a required pointer (non-null) function parameter that is
-    both read and written to.
-*/
-#ifndef OSVR_INOUT_PTR
-#define OSVR_INOUT_PTR
-#endif
-
-/* End of parameter annotations. */
-/** @} */
-
-/** @name Function annotations
-
-    These indicate particular relevant aspects about a function. Some
-    duplicate the effective meaning of parameter annotations: applying both
-    allows the fullest extent of static analysis tools to analyze the code,
-    and in some compilers, generate warnings.
-
-   @{
-*/
-/** @def OSVR_FUNC_NONNULL(X)
-    @brief Indicates the parameter(s) that must be non-null.
-
-    @param X A parenthesized list of parameters by number (1-based index)
-
-    Should be placed after a function declaration (but before the
-   semicolon). Repeating in the definition is not needed.
-*/
-#ifndef OSVR_FUNC_NONNULL
-#define OSVR_FUNC_NONNULL(X)
-#endif
-
-/** @def OSVR_RETURN_WARN_UNUSED
-    @brief Indicates the function has a return value that must be used (either a
-   security problem or an obvious bug if not).
-
-    Should be placed before the return value (and virtual keyword, if
-   applicable) in both declaration and definition.
-*/
-#ifndef OSVR_RETURN_WARN_UNUSED
-#define OSVR_RETURN_WARN_UNUSED
-#endif
-/* End of function annotations. */
-/** @} */
-
-/** @def OSVR_RETURN_SUCCESS_CONDITION
-    @brief Applied to a typedef, indicates the condition for `return` under
-   which a function returning it should be considered to have succeeded (thus
-   holding certain specifications).
-
-    Should be placed before the typename in a typedef, with the parameter
-   including the keyword `return` to substitute for the return value.
-*/
-#ifndef OSVR_RETURN_SUCCESS_CONDITION
-#define OSVR_RETURN_SUCCESS_CONDITION(X)
-#endif
-
-/* End of annotation group. */
-/** @} */
-#endif
diff --git a/gfx/vr/osvr/Util/BoolC.h b/gfx/vr/osvr/Util/BoolC.h
deleted file mode 100644
index b50ec7cfd..000000000
--- a/gfx/vr/osvr/Util/BoolC.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/** @file
-    @brief Header providing a C-safe "bool" type, because we can't depend on
-   Visual Studio providing proper C99 support in external-facing APIs.
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_BoolC_h_GUID_4F97BE90_2758_4BA5_B0FC_0CA92DEBA210
-#define INCLUDED_BoolC_h_GUID_4F97BE90_2758_4BA5_B0FC_0CA92DEBA210
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-/** @addtogroup Util
-@{
-*/
-
-/** @brief A pre-C99-safe bool type. Canonical values for true and false are
- * provided. Interpretation of other values is not defined. */
-typedef uint8_t OSVR_CBool;
-/** @brief Canonical "true" value for OSVR_CBool */
-#define OSVR_TRUE (1)
-/** @brief Canonical "false" value for OSVR_CBool */
-#define OSVR_FALSE (0)
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ChannelCountC.h b/gfx/vr/osvr/Util/ChannelCountC.h
deleted file mode 100644
index dc49b3b17..000000000
--- a/gfx/vr/osvr/Util/ChannelCountC.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ChannelCountC_h_GUID_CF7E5EE7_28B0_4B99_E823_DD701904B5D1
-#define INCLUDED_ChannelCountC_h_GUID_CF7E5EE7_28B0_4B99_E823_DD701904B5D1
-
-/* Internal Includes */
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-@{
-*/
-
-/** @brief The integer type specifying a number of channels/sensors or a
-channel/sensor index.
-*/
-typedef uint32_t OSVR_ChannelCount;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ClientCallbackTypesC.h b/gfx/vr/osvr/Util/ClientCallbackTypesC.h
deleted file mode 100644
index ae17381dc..000000000
--- a/gfx/vr/osvr/Util/ClientCallbackTypesC.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/** @file

-    @brief Header

-

-    Must be c-safe!

-

-    GENERATED - do not edit by hand!

-

-    @date 2014

-

-    @author

-    Sensics, Inc.

-    <http://sensics.com/osvr>

-*/

-

-/*

-// Copyright 2014 Sensics, Inc.

-//

-// Licensed under the Apache License, Version 2.0 (the "License");

-// you may not use this file except in compliance with the License.

-// You may obtain a copy of the License at

-//

-//     http://www.apache.org/licenses/LICENSE-2.0

-//

-// Unless required by applicable law or agreed to in writing, software

-// 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.

-*/

-

-#ifndef INCLUDED_ClientCallbackTypesC_h_GUID_4D43A675_C8A4_4BBF_516F_59E6C785E4EF

-#define INCLUDED_ClientCallbackTypesC_h_GUID_4D43A675_C8A4_4BBF_516F_59E6C785E4EF

-

-/* Internal Includes */

-#include <osvr/Util/ClientReportTypesC.h>

-#include <osvr/Util/ImagingReportTypesC.h>

-#include <osvr/Util/ReturnCodesC.h>

-#include <osvr/Util/TimeValueC.h>

-

-/* Library/third-party includes */

-/* none */

-

-/* Standard includes */

-/* none */

-

-OSVR_EXTERN_C_BEGIN

-

-/** @addtogroup ClientKit

-    @{

-*/

-

-/** @name Report callback types

-    @{

-*/

-

-/* generated file - do not edit! */

-/** @brief C function type for a Pose callback */

-typedef void (*OSVR_PoseCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_PoseReport *report);

-/** @brief C function type for a Position callback */

-typedef void (*OSVR_PositionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_PositionReport *report);

-/** @brief C function type for a Orientation callback */

-typedef void (*OSVR_OrientationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_OrientationReport *report);

-/** @brief C function type for a Velocity callback */

-typedef void (*OSVR_VelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_VelocityReport *report);

-/** @brief C function type for a LinearVelocity callback */

-typedef void (*OSVR_LinearVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_LinearVelocityReport *report);

-/** @brief C function type for a AngularVelocity callback */

-typedef void (*OSVR_AngularVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AngularVelocityReport *report);

-/** @brief C function type for a Acceleration callback */

-typedef void (*OSVR_AccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AccelerationReport *report);

-/** @brief C function type for a LinearAcceleration callback */

-typedef void (*OSVR_LinearAccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_LinearAccelerationReport *report);

-/** @brief C function type for a AngularAcceleration callback */

-typedef void (*OSVR_AngularAccelerationCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AngularAccelerationReport *report);

-/** @brief C function type for a Button callback */

-typedef void (*OSVR_ButtonCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_ButtonReport *report);

-/** @brief C function type for a Analog callback */

-typedef void (*OSVR_AnalogCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_AnalogReport *report);

-/** @brief C function type for a Imaging callback */

-typedef void (*OSVR_ImagingCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_ImagingReport *report);

-/** @brief C function type for a Location2D callback */

-typedef void (*OSVR_Location2DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_Location2DReport *report);

-/** @brief C function type for a Direction callback */

-typedef void (*OSVR_DirectionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_DirectionReport *report);

-/** @brief C function type for a EyeTracker2D callback */

-typedef void (*OSVR_EyeTracker2DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTracker2DReport *report);

-/** @brief C function type for a EyeTracker3D callback */

-typedef void (*OSVR_EyeTracker3DCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTracker3DReport *report);

-/** @brief C function type for a EyeTrackerBlink callback */

-typedef void (*OSVR_EyeTrackerBlinkCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_EyeTrackerBlinkReport *report);

-/** @brief C function type for a NaviVelocity callback */

-typedef void (*OSVR_NaviVelocityCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_NaviVelocityReport *report);

-/** @brief C function type for a NaviPosition callback */

-typedef void (*OSVR_NaviPositionCallback)(void *userdata,

-                                     const struct OSVR_TimeValue *timestamp,

-                                     const struct OSVR_NaviPositionReport *report);

-

-/** @} */

-

-/** @} */

-

-OSVR_EXTERN_C_END

-

-#endif

diff --git a/gfx/vr/osvr/Util/ClientOpaqueTypesC.h b/gfx/vr/osvr/Util/ClientOpaqueTypesC.h
deleted file mode 100644
index 64eba6d61..000000000
--- a/gfx/vr/osvr/Util/ClientOpaqueTypesC.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/** @file
-    @brief Header declaring opaque types used by @ref Client and @ref ClientKit
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ClientOpaqueTypesC_h_GUID_24B79ED2_5751_4BA2_1690_BBD250EBC0C1
-#define INCLUDED_ClientOpaqueTypesC_h_GUID_24B79ED2_5751_4BA2_1690_BBD250EBC0C1
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-/** @brief Opaque handle that should be retained by your application. You need
-    only and exactly one.
-
-    Created by osvrClientInit() at application start.
-
-    You are required to clean up this handle with osvrClientShutdown().
-*/
-typedef struct OSVR_ClientContextObject *OSVR_ClientContext;
-
-/** @brief Opaque handle to an interface used for registering callbacks and
-   getting status.
-
-    You are not required to clean up this handle (it will be automatically
-   cleaned up when the context is), but you can if you are no longer using it,
-   using osvrClientFreeInterface() to inform the context that you no longer need
-   this interface.
-*/
-typedef struct OSVR_ClientInterfaceObject *OSVR_ClientInterface;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ClientReportTypesC.h b/gfx/vr/osvr/Util/ClientReportTypesC.h
deleted file mode 100644
index 85fa5a5a1..000000000
--- a/gfx/vr/osvr/Util/ClientReportTypesC.h
+++ /dev/null
@@ -1,348 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ClientReportTypesC_h_GUID_E79DAB07_78B7_4795_1EB9_CA6EEB274AEE
-#define INCLUDED_ClientReportTypesC_h_GUID_E79DAB07_78B7_4795_1EB9_CA6EEB274AEE
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/StdInt.h>
-
-#include <osvr/Util/Vec2C.h>
-#include <osvr/Util/Vec3C.h>
-#include <osvr/Util/ChannelCountC.h>
-#include <osvr/Util/BoolC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-
-/** @name State types
-@{
-*/
-/** @brief Type of position state */
-typedef OSVR_Vec3 OSVR_PositionState;
-
-/** @brief Type of orientation state */
-typedef OSVR_Quaternion OSVR_OrientationState;
-
-/** @brief Type of pose state */
-typedef OSVR_Pose3 OSVR_PoseState;
-
-/** @brief Type of linear velocity state */
-typedef OSVR_Vec3 OSVR_LinearVelocityState;
-
-/** @brief The quaternion represents the incremental rotation taking place over
-    a period of dt seconds. Use of dt (which does not necessarily
-    have to be 1, as other velocity/acceleration representations imply) and an
-    incremental quaternion allows device reports to be scaled to avoid aliasing
-*/
-typedef struct OSVR_IncrementalQuaternion {
-    OSVR_Quaternion incrementalRotation;
-    double dt;
-} OSVR_IncrementalQuaternion;
-
-/** @brief Type of angular velocity state: an incremental quaternion, providing
-    the incremental rotation taking place due to velocity over a period of dt
-    seconds.
-*/
-typedef OSVR_IncrementalQuaternion OSVR_AngularVelocityState;
-
-/** @brief Struct for combined velocity state */
-typedef struct OSVR_VelocityState {
-    OSVR_LinearVelocityState linearVelocity;
-    /** @brief Whether the data source reports valid data for
-        #OSVR_VelocityState::linearVelocity */
-    OSVR_CBool linearVelocityValid;
-
-    OSVR_AngularVelocityState angularVelocity;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_VelocityState::angularVelocity */
-    OSVR_CBool angularVelocityValid;
-} OSVR_VelocityState;
-
-/** @brief Type of linear acceleration state */
-typedef OSVR_Vec3 OSVR_LinearAccelerationState;
-
-/** @brief Type of angular acceleration state
-*/
-typedef OSVR_IncrementalQuaternion OSVR_AngularAccelerationState;
-
-/** @brief Struct for combined acceleration state */
-typedef struct OSVR_AccelerationState {
-    OSVR_LinearAccelerationState linearAcceleration;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_AccelerationState::linearAcceleration */
-    OSVR_CBool linearAccelerationValid;
-
-    OSVR_AngularAccelerationState angularAcceleration;
-    /** @brief Whether the data source reports valid data for
-    #OSVR_AccelerationState::angularAcceleration */
-    OSVR_CBool angularAccelerationValid;
-} OSVR_AccelerationState;
-
-/** @brief Type of button state */
-typedef uint8_t OSVR_ButtonState;
-
-/** @brief OSVR_ButtonState value indicating "button down" */
-#define OSVR_BUTTON_PRESSED (1)
-
-/** @brief OSVR_ButtonState value indicating "button up" */
-#define OSVR_BUTTON_NOT_PRESSED (0)
-
-/** @brief Type of analog channel state */
-typedef double OSVR_AnalogState;
-
-/** @} */
-
-/** @name Report types
-    @{
-*/
-/** @brief Report type for a position callback on a tracker interface */
-typedef struct OSVR_PositionReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The position vector */
-    OSVR_PositionState xyz;
-} OSVR_PositionReport;
-
-/** @brief Report type for an orientation callback on a tracker interface */
-typedef struct OSVR_OrientationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The rotation unit quaternion */
-    OSVR_OrientationState rotation;
-} OSVR_OrientationReport;
-
-/** @brief Report type for a pose (position and orientation) callback on a
-    tracker interface
-*/
-typedef struct OSVR_PoseReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The pose structure, containing a position vector and a rotation
-        quaternion
-    */
-    OSVR_PoseState pose;
-} OSVR_PoseReport;
-
-/** @brief Report type for a velocity (linear and angular) callback on a
-    tracker interface
-*/
-typedef struct OSVR_VelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The data state - note that not all fields are neccesarily valid,
-        use the `Valid` members to check the status of the other fields.
-    */
-    OSVR_VelocityState state;
-} OSVR_VelocityReport;
-
-/** @brief Report type for a linear velocity callback on a tracker interface
-*/
-typedef struct OSVR_LinearVelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_LinearVelocityState state;
-} OSVR_LinearVelocityReport;
-
-/** @brief Report type for an angular velocity callback on a tracker interface
-*/
-typedef struct OSVR_AngularVelocityReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_AngularVelocityState state;
-} OSVR_AngularVelocityReport;
-
-/** @brief Report type for an acceleration (linear and angular) callback on a
-    tracker interface
-*/
-typedef struct OSVR_AccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The data state - note that not all fields are neccesarily valid,
-        use the `Valid` members to check the status of the other fields.
-    */
-    OSVR_AccelerationState state;
-} OSVR_AccelerationReport;
-
-/** @brief Report type for a linear acceleration callback on a tracker interface
-*/
-typedef struct OSVR_LinearAccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_LinearAccelerationState state;
-} OSVR_LinearAccelerationReport;
-
-/** @brief Report type for an angular acceleration callback on a tracker
-    interface
-*/
-typedef struct OSVR_AngularAccelerationReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The state itself */
-    OSVR_AngularAccelerationState state;
-} OSVR_AngularAccelerationReport;
-
-/** @brief Report type for a callback on a button interface */
-typedef struct OSVR_ButtonReport {
-    /** @brief Identifies the sensor that the report comes from */
-    int32_t sensor;
-    /** @brief The button state: 1 is pressed, 0 is not pressed. */
-    OSVR_ButtonState state;
-} OSVR_ButtonReport;
-
-/** @brief Report type for a callback on an analog interface */
-typedef struct OSVR_AnalogReport {
-    /** @brief Identifies the sensor/channel that the report comes from */
-    int32_t sensor;
-    /** @brief The analog state. */
-    OSVR_AnalogState state;
-} OSVR_AnalogReport;
-
-/** @brief Type of location within a 2D region/surface, in normalized
-    coordinates (in range [0, 1] in standard OSVR coordinate system)
-*/
-typedef OSVR_Vec2 OSVR_Location2DState;
-
-/** @brief Report type for 2D location */
-typedef struct OSVR_Location2DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_Location2DState location;
-} OSVR_Location2DReport;
-
-/** @brief Type of unit directional vector in 3D with no particular origin */
-typedef OSVR_Vec3 OSVR_DirectionState;
-
-/** @brief Report type for 3D Direction vector */
-typedef struct OSVR_DirectionReport {
-    OSVR_ChannelCount sensor;
-    OSVR_DirectionState direction;
-} OSVR_DirectionReport;
-
-/** @brief Type of eye gaze direction in 3D which contains 3D vector (position)
-    containing gaze base point of the user's respective eye in 3D device
-    coordinates.
-*/
-typedef OSVR_PositionState OSVR_EyeGazeBasePoint3DState;
-
-/** @brief Type of eye gaze position in 2D which contains users's gaze/point of
-    regard in normalized display coordinates (in range [0, 1] in standard OSVR
-    coordinate system)
-*/
-typedef OSVR_Location2DState OSVR_EyeGazePosition2DState;
-
-// typedef OSVR_DirectionState OSVR_EyeGazeBasePoint3DState;
-
-/** @brief Type of 3D vector (direction vector) containing the normalized gaze
-    direction of user's respective eye */
-typedef OSVR_DirectionState OSVR_EyeGazeDirectionState;
-
-/** @brief State for 3D gaze report */
-typedef struct OSVR_EyeTracker3DState {
-    OSVR_CBool directionValid;
-    OSVR_DirectionState direction;
-    OSVR_CBool basePointValid;
-    OSVR_PositionState basePoint;
-} OSVR_EyeTracker3DState;
-
-/** @brief Report type for 3D gaze report */
-typedef struct OSVR_EyeTracker3DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTracker3DState state;
-} OSVR_EyeTracker3DReport;
-
-/** @brief State for 2D location report */
-typedef OSVR_Location2DState OSVR_EyeTracker2DState;
-
-/** @brief Report type for 2D location report */
-typedef struct OSVR_EyeTracker2DReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTracker2DState state;
-} OSVR_EyeTracker2DReport;
-
-/** @brief State for a blink event */
-typedef OSVR_ButtonState OSVR_EyeTrackerBlinkState;
-
-/** @brief OSVR_EyeTrackerBlinkState value indicating an eyes blink had occurred
- */
-#define OSVR_EYE_BLINK (1)
-
-/** @brief OSVR_EyeTrackerBlinkState value indicating eyes are not blinking */
-#define OSVR_EYE_NO_BLINK (0)
-
-/** @brief Report type for a blink event */
-typedef struct OSVR_EyeTrackerBlinkReport {
-    OSVR_ChannelCount sensor;
-    OSVR_EyeTrackerBlinkState state;
-} OSVR_EyeTrackerBlinkReport;
-
-/** @brief Report type for an Imaging callback (forward declaration) */
-struct OSVR_ImagingReport;
-
-/** @brief Type of Navigation Velocity state */
-typedef OSVR_Vec2 OSVR_NaviVelocityState;
-
-/** @brief Type of Navigation Position state */
-typedef OSVR_Vec2 OSVR_NaviPositionState;
-
-/** @brief Report type for an navigation velocity callback on a tracker
- * interface */
-typedef struct OSVR_NaviVelocityReport {
-    OSVR_ChannelCount sensor;
-    /** @brief The 2D vector in world coordinate system, in meters/second */
-    OSVR_NaviVelocityState state;
-} OSVR_NaviVelocityReport;
-
-/** @brief Report type for an navigation position callback on a tracker
- * interface */
-typedef struct OSVR_NaviPositionReport {
-    OSVR_ChannelCount sensor;
-    /** @brief The 2D vector in world coordinate system, in meters, relative to
-     * starting position */
-    OSVR_NaviPositionState state;
-} OSVR_NaviPositionReport;
-
-/** @} */
-
-/** @} */
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/Export.h b/gfx/vr/osvr/Util/Export.h
deleted file mode 100644
index f3e26b89f..000000000
--- a/gfx/vr/osvr/Util/Export.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/** @file
-    @brief Automatically-generated export header - do not edit!
-
-    @date 2016
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-// Copyright 2016 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-
-#ifndef OSVR_UTIL_EXPORT_H
-#define OSVR_UTIL_EXPORT_H
-
-#ifdef OSVR_UTIL_STATIC_DEFINE
-#  define OSVR_UTIL_EXPORT
-#  define OSVR_UTIL_NO_EXPORT
-#endif
-
-/* Per-compiler advance preventative definition */
-#if defined(__BORLANDC__) || defined(__CODEGEARC__) || defined(__HP_aCC) ||    \
-    defined(__PGI) || defined(__WATCOMC__)
-/* Compilers that don't support deprecated, according to CMake. */
-#  ifndef OSVR_UTIL_DEPRECATED
-#    define OSVR_UTIL_DEPRECATED
-#  endif
-#endif
-
-/* Check for attribute support */
-#if defined(__INTEL_COMPILER)
-/* Checking before GNUC because Intel implements GNU extensions,
- * so it chooses to define __GNUC__ as well. */
-#  if __INTEL_COMPILER >= 1200
-/* Intel compiler 12.0 or newer can handle these attributes per CMake */
-#    define OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-
-#elif defined(__GNUC__)
-#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 2))
-/* GCC 4.2+ */
-#    define OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-#  endif
-#endif
-
-/* Per-platform defines */
-#if defined(_MSC_VER)
-/* MSVC on Windows */
-
-#ifndef OSVR_UTIL_EXPORT
-#  ifdef osvrUtil_EXPORTS
-      /* We are building this library */
-#    define OSVR_UTIL_EXPORT __declspec(dllexport)
-#  else
-      /* We are using this library */
-#    define OSVR_UTIL_EXPORT __declspec(dllimport)
-#  endif
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __declspec(deprecated)
-#endif
-
-#elif defined(_WIN32) && defined(__GNUC__)
-/* GCC-compatible on Windows */
-
-#ifndef OSVR_UTIL_EXPORT
-#  ifdef osvrUtil_EXPORTS
-      /* We are building this library */
-#    define OSVR_UTIL_EXPORT __attribute__((dllexport))
-#  else
-      /* We are using this library */
-#    define OSVR_UTIL_EXPORT __attribute__((dllimport))
-#  endif
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#elif defined(OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES) ||         \
-    (defined(__APPLE__) && defined(__MACH__))
-/* GCC4.2+ compatible (assuming something *nix-like) and Mac OS X */
-/* (The first macro is defined at the top of the file, if applicable) */
-/* see https://gcc.gnu.org/wiki/Visibility */
-
-#ifndef OSVR_UTIL_EXPORT
-  /* We are building/using this library */
-#  define OSVR_UTIL_EXPORT __attribute__((visibility("default")))
-#endif
-
-#ifndef OSVR_UTIL_NO_EXPORT
-#  define OSVR_UTIL_NO_EXPORT __attribute__((visibility("hidden")))
-#endif
-
-#ifndef OSVR_UTIL_DEPRECATED
-#  define OSVR_UTIL_DEPRECATED __attribute__((__deprecated__))
-#endif
-
-#endif
-/* End of platform ifdefs */
-
-/* fallback def */
-#ifndef OSVR_UTIL_EXPORT
-#  define OSVR_UTIL_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_NO_EXPORT
-#  define OSVR_UTIL_NO_EXPORT
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_DEPRECATED_EXPORT
-#  define OSVR_UTIL_DEPRECATED_EXPORT OSVR_UTIL_EXPORT OSVR_UTIL_DEPRECATED
-#endif
-
-/* fallback def */
-#ifndef OSVR_UTIL_DEPRECATED_NO_EXPORT
-#  define OSVR_UTIL_DEPRECATED_NO_EXPORT OSVR_UTIL_NO_EXPORT OSVR_UTIL_DEPRECATED
-#endif
-
-/* Clean up after ourselves */
-#undef OSVR_UTIL_EXPORT_HEADER_SUPPORTS_ATTRIBUTES
-
-#endif
diff --git a/gfx/vr/osvr/Util/ImagingReportTypesC.h b/gfx/vr/osvr/Util/ImagingReportTypesC.h
deleted file mode 100644
index 1ce8b60d6..000000000
--- a/gfx/vr/osvr/Util/ImagingReportTypesC.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ImagingReportTypesC_h_GUID_746A7BF8_B92D_4585_CA72_DC5391DEDF24
-#define INCLUDED_ImagingReportTypesC_h_GUID_746A7BF8_B92D_4585_CA72_DC5391DEDF24
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/ChannelCountC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup ClientKit
-    @{
-*/
-typedef uint32_t OSVR_ImageDimension;
-typedef uint8_t OSVR_ImageChannels;
-typedef uint8_t OSVR_ImageDepth;
-
-/** @brief Type for raw buffer access to image data */
-typedef unsigned char OSVR_ImageBufferElement;
-
-typedef enum OSVR_ImagingValueType {
-    OSVR_IVT_UNSIGNED_INT = 0,
-    OSVR_IVT_SIGNED_INT = 1,
-    OSVR_IVT_FLOATING_POINT = 2
-} OSVR_ImagingValueType;
-
-typedef struct OSVR_ImagingMetadata {
-    /** @brief height in pixels */
-    OSVR_ImageDimension height;
-    /** @brief width in pixels */
-    OSVR_ImageDimension width;
-    /** @brief number of channels of data for each pixel */
-    OSVR_ImageChannels channels;
-    /** @brief the depth (size) in bytes of each channel - valid values are 1,
-     * 2, 4, and 8 */
-    OSVR_ImageDepth depth;
-    /** @brief Whether values are unsigned ints, signed ints, or floating point
-     */
-    OSVR_ImagingValueType type;
-
-} OSVR_ImagingMetadata;
-
-typedef struct OSVR_ImagingState {
-    OSVR_ImagingMetadata metadata;
-    OSVR_ImageBufferElement *data;
-} OSVR_ImagingState;
-
-typedef struct OSVR_ImagingReport {
-    OSVR_ChannelCount sensor;
-    OSVR_ImagingState state;
-} OSVR_ImagingReport;
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/MatrixConventionsC.h b/gfx/vr/osvr/Util/MatrixConventionsC.h
deleted file mode 100644
index b1f2c2797..000000000
--- a/gfx/vr/osvr/Util/MatrixConventionsC.h
+++ /dev/null
@@ -1,190 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_MatrixConventionsC_h_GUID_6FC7A4C6_E6C5_4A96_1C28_C3D21B909681
-#define INCLUDED_MatrixConventionsC_h_GUID_6FC7A4C6_E6C5_4A96_1C28_C3D21B909681
-
-/* Internal Includes */
-#include <osvr/Util/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/Pose3C.h>
-#include <osvr/Util/ReturnCodesC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @defgroup MatrixConvention Matrix conventions and bit flags
-    @ingroup UtilMath
-*/
-
-/** @brief Type for passing matrix convention flags.
-    @ingroup MatrixConvention
-*/
-typedef uint16_t OSVR_MatrixConventions;
-
-#ifndef OSVR_DOXYGEN_EXTERNAL
-/** @brief Bitmasks for testing matrix conventions.
-    @ingroup MatrixConvention
-*/
-typedef enum OSVR_MatrixMasks {
-    OSVR_MATRIX_MASK_ROWMAJOR = 0x1,
-    OSVR_MATRIX_MASK_ROWVECTORS = 0x2,
-    OSVR_MATRIX_MASK_LHINPUT = 0x4,
-    OSVR_MATRIX_MASK_UNSIGNEDZ = 0x8
-} OSVR_MatrixMasks;
-#endif
-
-/** @defgroup MatrixFlags Matrix flags
-    @ingroup MatrixConvention
-
-    Bit flags for specifying matrix options. Only one option may be specified
-   per enum, with all the specified options combined with bitwise-or `|`.
-
-    Most methods that take matrix flags only obey ::OSVR_MatrixOrderingFlags and
-   ::OSVR_MatrixVectorFlags - the flags that affect memory order. The remaining
-   flags are for use with projection matrix generation API methods.
-
-    @{
-*/
-/** @brief Flag bit controlling output memory order */
-typedef enum OSVR_MatrixOrderingFlags {
-    /** @brief Column-major memory order (default) */
-    OSVR_MATRIX_COLMAJOR = 0x0,
-    /** @brief Row-major memory order */
-    OSVR_MATRIX_ROWMAJOR = OSVR_MATRIX_MASK_ROWMAJOR
-} OSVR_MatrixOrderingFlags;
-
-/** @brief Flag bit controlling expected input to matrices.
-    (Related to ::OSVR_MatrixOrderingFlags - setting one to non-default results
-    in an output change, but setting both to non-default results in effectively
-    no change in the output. If this blows your mind, just ignore this aside and
-    carry on.)
-*/
-typedef enum OSVR_MatrixVectorFlags {
-    /** @brief Matrix transforms column vectors (default) */
-    OSVR_MATRIX_COLVECTORS = 0x0,
-    /** @brief Matrix transforms row vectors */
-    OSVR_MATRIX_ROWVECTORS = OSVR_MATRIX_MASK_ROWVECTORS
-} OSVR_MatrixVectorFlags;
-
-/** @brief Flag bit to indicate coordinate system input to projection matrix */
-typedef enum OSVR_ProjectionMatrixInputFlags {
-    /** @brief Matrix takes vectors from a right-handed coordinate system
-       (default) */
-    OSVR_MATRIX_RHINPUT = 0x0,
-    /** @brief Matrix takes vectors from a left-handed coordinate system */
-    OSVR_MATRIX_LHINPUT = OSVR_MATRIX_MASK_LHINPUT
-
-} OSVR_ProjectionMatrixInputFlags;
-
-/** @brief Flag bit to indicate the desired post-projection Z value convention
- */
-typedef enum OSVR_ProjectionMatrixZFlags {
-    /** @brief Matrix maps the near and far planes to signed Z values (in the
-        range [-1, 1])  (default)*/
-    OSVR_MATRIX_SIGNEDZ = 0x0,
-    /** @brief Matrix maps the near and far planes to unsigned Z values (in the
-        range [0, 1]) */
-    OSVR_MATRIX_UNSIGNEDZ = OSVR_MATRIX_MASK_UNSIGNEDZ
-} OSVR_ProjectionMatrixZFlags;
-/** @} */ /* end of matrix flags group */
-
-enum {
-    /** @brief Constant for the number of elements in the matrices we use - 4x4.
-        @ingroup MatrixConvention
-    */
-    OSVR_MATRIX_SIZE = 16
-};
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief Set a matrix of doubles based on a Pose3.
-    @param pose The Pose3 to convert
-    @param flags Memory ordering flag - see @ref MatrixFlags
-    @param[out] mat an array of 16 doubles
-*/
-OSVR_UTIL_EXPORT OSVR_ReturnCode osvrPose3ToMatrixd(
-    OSVR_Pose3 const *pose, OSVR_MatrixConventions flags, double *mat);
-
-/** @brief Set a matrix of floats based on a Pose3.
-    @param pose The Pose3 to convert
-    @param flags Memory ordering flag - see @ref MatrixFlags
-    @param[out] mat an array of 16 floats
-*/
-OSVR_UTIL_EXPORT OSVR_ReturnCode osvrPose3ToMatrixf(
-    OSVR_Pose3 const *pose, OSVR_MatrixConventions flags, float *mat);
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detecting scalar
- * type) */
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         double *mat) {
-    return osvrPose3ToMatrixd(pose, flags, mat);
-}
-
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detecting scalar
- * type) */
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         float *mat) {
-    return osvrPose3ToMatrixf(pose, flags, mat);
-}
-
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detects scalar
- * and takes array rather than pointer) */
-template <typename Scalar>
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const *pose,
-                                         OSVR_MatrixConventions flags,
-                                         Scalar mat[OSVR_MATRIX_SIZE]) {
-    return osvrPose3ToMatrix(pose, flags, &(mat[0]));
-}
-/** @brief Set a matrix based on a Pose3. (C++-only overload - detects scalar,
- * takes array, takes pose by reference) */
-template <typename Scalar>
-inline OSVR_ReturnCode osvrPose3ToMatrix(OSVR_Pose3 const &pose,
-                                         OSVR_MatrixConventions flags,
-                                         Scalar mat[OSVR_MATRIX_SIZE]) {
-    return osvrPose3ToMatrix(&pose, flags, &(mat[0]));
-}
-
-#endif
-
-/** @} */
-
-#endif
diff --git a/gfx/vr/osvr/Util/PlatformConfig.h b/gfx/vr/osvr/Util/PlatformConfig.h
deleted file mode 100644
index 8342e4f8f..000000000
--- a/gfx/vr/osvr/Util/PlatformConfig.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/** @file

-    @brief Auto-configured header

-

-    If this filename ends in `.h`, don't edit it: your edits will

-    be lost next time this file is regenerated!

-

-    Must be c-safe!

-

-    @date 2014

-

-    @author

-    Sensics, Inc.

-    <http://sensics.com/osvr>

-*/

-

-/*

-// Copyright 2014 Sensics, Inc.

-//

-// Licensed under the Apache License, Version 2.0 (the "License");

-// you may not use this file except in compliance with the License.

-// You may obtain a copy of the License at

-//

-//     http://www.apache.org/licenses/LICENSE-2.0

-//

-// Unless required by applicable law or agreed to in writing, software

-// 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.

-*/

-

-#ifndef INCLUDED_PlatformConfig_h_GUID_0D10E644_8114_4294_A839_699F39E1F0E0

-#define INCLUDED_PlatformConfig_h_GUID_0D10E644_8114_4294_A839_699F39E1F0E0

-

-/** @def OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-    @brief Does the system have struct timeval in <winsock2.h>?

-*/

-#define OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-

-/** @def OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H

-    @brief Does the system have struct timeval in <sys/time.h>?

-*/

-

-/*

-    MinGW and similar environments have both winsock and sys/time.h, so

-    we hide this define for disambiguation at the top level.

-*/

-#ifndef OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H

-/* #undef OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H */

-#endif

-

-#if defined(OSVR_HAVE_STRUCT_TIMEVAL_IN_SYS_TIME_H) ||                         \

-    defined(OSVR_HAVE_STRUCT_TIMEVAL_IN_WINSOCK2_H)

-#define OSVR_HAVE_STRUCT_TIMEVAL

-#endif

-

-/**

- * Platform-specific variables.

- *

- * Prefer testing for specific compiler or platform features instead of relying

- * on these variables.

- *

- */

-//@{

-/* #undef OSVR_AIX */

-/* #undef OSVR_ANDROID */

-/* #undef OSVR_BSDOS */

-/* #undef OSVR_FREEBSD */

-/* #undef OSVR_HPUX */

-/* #undef OSVR_IRIX */

-/* #undef OSVR_LINUX */

-/* #undef OSVR_KFREEBSD */

-/* #undef OSVR_NETBSD */

-/* #undef OSVR_OPENBSD */

-/* #undef OSVR_OFS1 */

-/* #undef OSVR_SCO_SV */

-/* #undef OSVR_UNIXWARE */

-/* #undef OSVR_XENIX */

-/* #undef OSVR_SUNOS */

-/* #undef OSVR_TRU64 */

-/* #undef OSVR_ULTRIX */

-/* #undef OSVR_CYGWIN */

-/* #undef OSVR_MACOSX */

-#define OSVR_WINDOWS

-//@}

-

-#endif

-

diff --git a/gfx/vr/osvr/Util/Pose3C.h b/gfx/vr/osvr/Util/Pose3C.h
deleted file mode 100644
index 173428cfc..000000000
--- a/gfx/vr/osvr/Util/Pose3C.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
-#define INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
-
-/* Internal Includes */
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Vec3C.h>
-#include <osvr/Util/QuaternionC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-
-/** @brief A structure defining a 3D (6DOF) rigid body pose: translation and
-    rotation.
-*/
-typedef struct OSVR_Pose3 {
-    /** @brief Position vector */
-    OSVR_Vec3 translation;
-    /** @brief Orientation as a unit quaternion */
-    OSVR_Quaternion rotation;
-} OSVR_Pose3;
-
-/** @brief Set a pose to identity */
-OSVR_INLINE void osvrPose3SetIdentity(OSVR_Pose3 *pose) {
-    osvrQuatSetIdentity(&(pose->rotation));
-    osvrVec3Zero(&(pose->translation));
-}
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/QuaternionC.h b/gfx/vr/osvr/Util/QuaternionC.h
deleted file mode 100644
index 8056c89a0..000000000
--- a/gfx/vr/osvr/Util/QuaternionC.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_QuaternionC_h_GUID_1470A5FE_8209_41A6_C19E_46077FDF9C66
-#define INCLUDED_QuaternionC_h_GUID_1470A5FE_8209_41A6_C19E_46077FDF9C66
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a quaternion, often a unit quaternion
- * representing 3D rotation.
-*/
-typedef struct OSVR_Quaternion {
-    /** @brief Internal data - direct access not recommended */
-    double data[4];
-} OSVR_Quaternion;
-
-#define OSVR_QUAT_MEMBER(COMPONENT, INDEX)                                     \
-    /** @brief Accessor for quaternion component COMPONENT */                  \
-    OSVR_INLINE double osvrQuatGet##COMPONENT(OSVR_Quaternion const *q) {      \
-        return q->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for quaternion component COMPONENT */                    \
-    OSVR_INLINE void osvrQuatSet##COMPONENT(OSVR_Quaternion *q, double val) {  \
-        q->data[INDEX] = val;                                                  \
-    }
-
-OSVR_QUAT_MEMBER(W, 0)
-OSVR_QUAT_MEMBER(X, 1)
-OSVR_QUAT_MEMBER(Y, 2)
-OSVR_QUAT_MEMBER(Z, 3)
-
-#undef OSVR_QUAT_MEMBER
-
-/** @brief Set a quaternion to the identity rotation */
-OSVR_INLINE void osvrQuatSetIdentity(OSVR_Quaternion *q) {
-    osvrQuatSetW(q, 1);
-    osvrQuatSetX(q, 0);
-    osvrQuatSetY(q, 0);
-    osvrQuatSetZ(q, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Quaternion const &quat) {
-    os << "(" << osvrQuatGetW(&quat) << ", (" << osvrQuatGetX(&quat) << ", "
-       << osvrQuatGetY(&quat) << ", " << osvrQuatGetZ(&quat) << "))";
-    return os;
-}
-#endif
-
-#endif
diff --git a/gfx/vr/osvr/Util/QuatlibInteropC.h b/gfx/vr/osvr/Util/QuatlibInteropC.h
deleted file mode 100644
index ef2a7fe12..000000000
--- a/gfx/vr/osvr/Util/QuatlibInteropC.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_QuatlibInteropC_h_GUID_85D92019_F0CC_419C_5F6D_F5A3134AA5D4
-#define INCLUDED_QuatlibInteropC_h_GUID_85D92019_F0CC_419C_5F6D_F5A3134AA5D4
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Pose3C.h>
-
-/* Library/third-party includes */
-#include <quat.h>
-
-/* Standard includes */
-#include <string.h>
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-OSVR_INLINE void osvrQuatToQuatlib(q_type dest, OSVR_Quaternion const *src) {
-    dest[Q_W] = osvrQuatGetW(src);
-    dest[Q_X] = osvrQuatGetX(src);
-    dest[Q_Y] = osvrQuatGetY(src);
-    dest[Q_Z] = osvrQuatGetZ(src);
-}
-
-OSVR_INLINE void osvrQuatFromQuatlib(OSVR_Quaternion *dest, q_type const src) {
-    osvrQuatSetW(dest, src[Q_W]);
-    osvrQuatSetX(dest, src[Q_X]);
-    osvrQuatSetY(dest, src[Q_Y]);
-    osvrQuatSetZ(dest, src[Q_Z]);
-}
-
-OSVR_INLINE void osvrVec3ToQuatlib(q_vec_type dest, OSVR_Vec3 const *src) {
-    memcpy((void *)(dest), (void const *)(src->data), sizeof(double) * 3);
-}
-
-OSVR_INLINE void osvrVec3FromQuatlib(OSVR_Vec3 *dest, q_vec_type const src) {
-    memcpy((void *)(dest->data), (void const *)(src), sizeof(double) * 3);
-}
-
-OSVR_INLINE void osvrPose3ToQuatlib(q_xyz_quat_type *dest,
-                                    OSVR_Pose3 const *src) {
-    osvrVec3ToQuatlib(dest->xyz, &(src->translation));
-    osvrQuatToQuatlib(dest->quat, &(src->rotation));
-}
-
-OSVR_INLINE void osvrPose3FromQuatlib(OSVR_Pose3 *dest,
-                                      q_xyz_quat_type const *src) {
-    osvrVec3FromQuatlib(&(dest->translation), src->xyz);
-    osvrQuatFromQuatlib(&(dest->rotation), src->quat);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-#endif
diff --git a/gfx/vr/osvr/Util/RadialDistortionParametersC.h b/gfx/vr/osvr/Util/RadialDistortionParametersC.h
deleted file mode 100644
index ac85a680e..000000000
--- a/gfx/vr/osvr/Util/RadialDistortionParametersC.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_RadialDistortionParametersC_h_GUID_925BCEB1_BACA_4DA7_5133_FFF560C72EBD
-#define INCLUDED_RadialDistortionParametersC_h_GUID_925BCEB1_BACA_4DA7_5133_FFF560C72EBD
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/Vec2C.h>
-#include <osvr/Util/Vec3C.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-@{
-*/
-
-/** @brief Parameters for a per-color-component radial distortion shader
-*/
-typedef struct OSVR_RadialDistortionParameters {
-    /** @brief Vector of K1 coefficients for the R, G, B channels*/
-    OSVR_Vec3 k1;
-    /** @brief Center of projection for the radial distortion, relative to the
-        bounds of this surface.
-        */
-    OSVR_Vec2 centerOfProjection;
-} OSVR_RadialDistortionParameters;
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/RenderingTypesC.h b/gfx/vr/osvr/Util/RenderingTypesC.h
deleted file mode 100644
index 51ec0cc09..000000000
--- a/gfx/vr/osvr/Util/RenderingTypesC.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/** @file
-    @brief Header with integer types for Viewer, Eye, and Surface
-   counts/indices, as well as viewport information.
-
-    Must be c-safe!
-
-    @date 2015
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2015 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//        http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_RenderingTypesC_h_GUID_6689A6CA_76AC_48AC_A0D0_2902BC95AC35
-#define INCLUDED_RenderingTypesC_h_GUID_6689A6CA_76AC_48AC_A0D0_2902BC95AC35
-
-/* Internal Includes */
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-@{
-*/
-
-/** @brief A count or index for a display input in a display config.
-*/
-typedef uint8_t OSVR_DisplayInputCount;
-
-/** @brief The integer type used in specification of size or location of a
-    display input, in pixels.
-*/
-typedef int32_t OSVR_DisplayDimension;
-
-/** @brief The integer type specifying a number of viewers in a system.
-
-    A "head" is a viewer (though not all viewers are necessarily heads).
-
-    The count is output from osvrClientGetNumViewers().
-
-    When used as an ID/index, it is zero-based, so values range from 0 to (count
-    - 1) inclusive.
-
-    The most frequent count is 1, though higher values are theoretically
-    possible. If you do not handle higher values, do still check and alert the
-    user if their system reports a higher number, as your application may not
-    behave as the user expects.
-*/
-typedef uint32_t OSVR_ViewerCount;
-
-/** @brief The integer type specifying the number of eyes (viewpoints) of a
-    viewer.
-
-    The count for a given viewer is output from osvrClientGetNumEyesForViewer().
-
-    When used as an ID/index, it is zero-based,so values range from 0 to (count
-    - 1) inclusive, for a given viewer.
-
-    Use as an ID/index is not meaningful except in conjunction with the ID of
-    the corresponding viewer. (that is, there is no overall "eye 0", but "viewer
-    0, eye 0" is meaningful.)
-
-    In practice, the most frequent counts are 1 (e.g. mono) and 2 (e.g. stereo),
-    and for example the latter results in eyes with ID 0 and 1 for the viewer.
-    There is no innate or consistent semantics/meaning ("left" or "right") to
-    indices guaranteed at this time, and applications should not try to infer
-    any.
-*/
-typedef uint8_t OSVR_EyeCount;
-
-/** @brief The integer type specifying the number of surfaces seen by a viewer's
-    eye.
-
-    The count for a given viewer and eye is output from
-    osvrClientGetNumSurfacesForViewerEye(). Note that the count is not
-    necessarily equal between eyes of a viewer.
-
-    When used as an ID/index, it is zero-based, so values range from 0 to (count
-    - 1) inclusive, for a given viewer and eye.
-
-    Use as an ID/index is not meaningful except in conjunction with the IDs of
-    the corresponding viewer and eye. (that is, there is no overall "surface 0",
-    but "viewer 0, eye 0, surface 0" is meaningful.)
-*/
-typedef uint32_t OSVR_SurfaceCount;
-
-/** @brief The integer type used in specification of size or location of a
-    viewport.
-*/
-typedef int32_t OSVR_ViewportDimension;
-
-/** @brief The integer type used to indicate relative priorities of a display
-    distortion strategy. Negative values are defined to mean that strategy is
-    unavailable.
-
-    @sa OSVR_DISTORTION_PRIORITY_UNAVAILABLE
-*/
-typedef int32_t OSVR_DistortionPriority;
-
-/** @brief The constant to return as an OSVR_DistortionPriority if a given
-    strategy is not available for a surface.
-
-    @sa OSVR_DistortionPriority
-*/
-#define OSVR_DISTORTION_PRIORITY_UNAVAILABLE (-1)
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/ReturnCodesC.h b/gfx/vr/osvr/Util/ReturnCodesC.h
deleted file mode 100644
index 971798ea4..000000000
--- a/gfx/vr/osvr/Util/ReturnCodesC.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/** @file
-    @brief Header declaring a type and values for simple C return codes.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_ReturnCodesC_h_GUID_C81A2FDE_E5BB_4AAA_70A4_C616DD7C141A
-#define INCLUDED_ReturnCodesC_h_GUID_C81A2FDE_E5BB_4AAA_70A4_C616DD7C141A
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup PluginKit
-    @{
-*/
-/** @name Return Codes
-    @{
-*/
-/** @brief The "success" value for an OSVR_ReturnCode */
-#define OSVR_RETURN_SUCCESS (0)
-/** @brief The "failure" value for an OSVR_ReturnCode */
-#define OSVR_RETURN_FAILURE (1)
-/** @brief Return type from C API OSVR functions. */
-typedef OSVR_RETURN_SUCCESS_CONDITION(
-    return == OSVR_RETURN_SUCCESS) char OSVR_ReturnCode;
-/** @} */
-
-/** @} */ /* end of group */
-
-OSVR_EXTERN_C_END
-
-#endif
diff --git a/gfx/vr/osvr/Util/StdInt.h b/gfx/vr/osvr/Util/StdInt.h
deleted file mode 100644
index c9462b62c..000000000
--- a/gfx/vr/osvr/Util/StdInt.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/** @file
-    @brief Header wrapping the C99 standard `stdint` header.
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_StdInt_h_GUID_C1AAF35C_C704_4DB7_14AC_615730C4619B
-#define INCLUDED_StdInt_h_GUID_C1AAF35C_C704_4DB7_14AC_615730C4619B
-
-/* IWYU pragma: begin_exports */
-
-#if !defined(_MSC_VER) || (defined(_MSC_VER) && _MSC_VER >= 1600)
-#include <stdint.h>
-#else
-#include "MSStdIntC.h"
-#endif
-
-/* IWYU pragma: end_exports */
-
-#endif
diff --git a/gfx/vr/osvr/Util/TimeValueC.h b/gfx/vr/osvr/Util/TimeValueC.h
deleted file mode 100644
index 7dcead654..000000000
--- a/gfx/vr/osvr/Util/TimeValueC.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/** @file
-    @brief Header defining a dependency-free, cross-platform substitute for
-   struct timeval
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_TimeValueC_h_GUID_A02C6917_124D_4CB3_E63E_07F2DA7144E9
-#define INCLUDED_TimeValueC_h_GUID_A02C6917_124D_4CB3_E63E_07F2DA7144E9
-
-/* Internal Includes */
-#include <osvr/Util/Export.h>
-#include <osvr/Util/APIBaseC.h>
-#include <osvr/Util/AnnotationMacrosC.h>
-#include <osvr/Util/PlatformConfig.h>
-#include <osvr/Util/StdInt.h>
-#include <osvr/Util/BoolC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @defgroup UtilTime Timestamp interaction
-    @ingroup Util
-
-    This provides a level of interoperability with struct timeval on systems
-    with that facility. It provides a neutral representation with sufficiently
-    large types.
-
-    For C++ code, use of std::chrono or boost::chrono instead is recommended.
-
-    Note that these time values may not necessarily correlate between processes
-   so should not be used to estimate or measure latency, etc.
-
-    @{
-*/
-
-/** @brief The signed integer type storing the seconds in a struct
-    OSVR_TimeValue */
-typedef int64_t OSVR_TimeValue_Seconds;
-/** @brief The signed integer type storing the microseconds in a struct
-    OSVR_TimeValue */
-typedef int32_t OSVR_TimeValue_Microseconds;
-
-/** @brief Standardized, portable parallel to struct timeval for representing
-   both absolute times and time intervals.
-
-   Where interpreted as an absolute time, its meaning is to be considered the
-   same as that of the POSIX struct timeval:
-   time since 00:00 Coordinated Universal Time (UTC), January 1, 1970.
-
-   For best results, please keep normalized. Output of all functions here
-   is normalized.
-   */
-typedef struct OSVR_TimeValue {
-    /** @brief Seconds portion of the time value. */
-    OSVR_TimeValue_Seconds seconds;
-    /** @brief Microseconds portion of the time value. */
-    OSVR_TimeValue_Microseconds microseconds;
-} OSVR_TimeValue;
-
-#ifdef OSVR_HAVE_STRUCT_TIMEVAL
-/** @brief Gets the current time in the TimeValue. Parallel to gettimeofday. */
-OSVR_UTIL_EXPORT void osvrTimeValueGetNow(OSVR_OUT OSVR_TimeValue *dest)
-    OSVR_FUNC_NONNULL((1));
-
-struct timeval; /* forward declaration */
-
-/** @brief Converts from a TimeValue struct to your system's struct timeval.
-
-    @param dest Pointer to an empty struct timeval for your platform.
-    @param src A pointer to an OSVR_TimeValue you'd like to convert from.
-
-    If either parameter is NULL, the function will return without doing
-   anything.
-*/
-OSVR_UTIL_EXPORT void
-osvrTimeValueToStructTimeval(OSVR_OUT struct timeval *dest,
-                             OSVR_IN_PTR const OSVR_TimeValue *src)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief Converts from a TimeValue struct to your system's struct timeval.
-    @param dest An OSVR_TimeValue destination pointer.
-    @param src Pointer to a struct timeval you'd like to convert from.
-
-    The result is normalized.
-
-    If either parameter is NULL, the function will return without doing
-   anything.
-*/
-OSVR_UTIL_EXPORT void
-osvrStructTimevalToTimeValue(OSVR_OUT OSVR_TimeValue *dest,
-                             OSVR_IN_PTR const struct timeval *src)
-    OSVR_FUNC_NONNULL((1, 2));
-#endif
-
-/** @brief "Normalizes" a time value so that the absolute number of microseconds
-    is less than 1,000,000, and that the sign of both components is the same.
-
-    @param tv Address of a struct TimeValue to normalize in place.
-
-    If the given pointer is NULL, this function returns without doing anything.
-*/
-OSVR_UTIL_EXPORT void osvrTimeValueNormalize(OSVR_INOUT_PTR OSVR_TimeValue *tv)
-    OSVR_FUNC_NONNULL((1));
-
-/** @brief Sums two time values, replacing the first with the result.
-
-    @param tvA Destination and first source.
-    @param tvB second source
-
-    If a given pointer is NULL, this function returns without doing anything.
-
-    Both parameters are expected to be in normalized form.
-*/
-OSVR_UTIL_EXPORT void osvrTimeValueSum(OSVR_INOUT_PTR OSVR_TimeValue *tvA,
-                                       OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief Computes the difference between two time values, replacing the first
-    with the result.
-
-    Effectively, `*tvA = *tvA - *tvB`
-
-    @param tvA Destination and first source.
-    @param tvB second source
-
-    If a given pointer is NULL, this function returns without doing anything.
-
-    Both parameters are expected to be in normalized form.
-*/
-OSVR_UTIL_EXPORT void
-osvrTimeValueDifference(OSVR_INOUT_PTR OSVR_TimeValue *tvA,
-                        OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-/** @brief  Compares two time values (assumed to be normalized), returning
-    the same values as strcmp
-
-    @return <0 if A is earlier than B, 0 if they are the same, and >0 if A
-    is later than B.
-*/
-OSVR_UTIL_EXPORT int osvrTimeValueCmp(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                                      OSVR_IN_PTR const OSVR_TimeValue *tvB)
-    OSVR_FUNC_NONNULL((1, 2));
-
-OSVR_EXTERN_C_END
-
-/** @brief Compute the difference between the two time values, returning the
-    duration as a double-precision floating-point number of seconds.
-
-    Effectively, `ret = *tvA - *tvB`
-
-    @param tvA first source.
-    @param tvB second source
-    @return Duration of timespan in seconds (floating-point)
-*/
-OSVR_INLINE double
-osvrTimeValueDurationSeconds(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                             OSVR_IN_PTR const OSVR_TimeValue *tvB) {
-    OSVR_TimeValue A = *tvA;
-    osvrTimeValueDifference(&A, tvB);
-    double dt = A.seconds + A.microseconds / 1000000.0;
-    return dt;
-}
-
-/** @brief True if A is later than B */
-OSVR_INLINE OSVR_CBool
-osvrTimeValueGreater(OSVR_IN_PTR const OSVR_TimeValue *tvA,
-                     OSVR_IN_PTR const OSVR_TimeValue *tvB) {
-    if (!tvA || !tvB) {
-        return OSVR_FALSE;
-    }
-    return ((tvA->seconds > tvB->seconds) ||
-            (tvA->seconds == tvB->seconds &&
-             tvA->microseconds > tvB->microseconds))
-               ? OSVR_TRUE
-               : OSVR_FALSE;
-}
-
-#ifdef __cplusplus
-
-#include <cmath>
-#include <cassert>
-
-/// Returns true if the time value is normalized. Typically used in assertions.
-inline bool osvrTimeValueIsNormalized(const OSVR_TimeValue &tv) {
-#ifdef __APPLE__
-    // apparently standard library used on mac only has floating-point abs?
-    return std::abs(double(tv.microseconds)) < 1000000 &&
-#else
-    return std::abs(tv.microseconds) < 1000000 &&
-#endif
-           ((tv.seconds > 0) == (tv.microseconds > 0));
-}
-
-/// True if A is later than B
-inline bool osvrTimeValueGreater(const OSVR_TimeValue &tvA,
-                                 const OSVR_TimeValue &tvB) {
-    assert(osvrTimeValueIsNormalized(tvA) &&
-           "First timevalue argument to comparison was not normalized!");
-    assert(osvrTimeValueIsNormalized(tvB) &&
-           "Second timevalue argument to comparison was not normalized!");
-    return (tvA.seconds > tvB.seconds) ||
-           (tvA.seconds == tvB.seconds && tvA.microseconds > tvB.microseconds);
-}
-
-/// Operator > overload for time values
-inline bool operator>(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    return osvrTimeValueGreater(tvA, tvB);
-}
-
-/// Operator < overload for time values
-inline bool operator<(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    // Change the order of arguments before forwarding.
-    return osvrTimeValueGreater(tvB, tvA);
-}
-
-/// Operator == overload for time values
-inline bool operator==(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    assert(
-        osvrTimeValueIsNormalized(tvA) &&
-        "First timevalue argument to equality comparison was not normalized!");
-    assert(
-        osvrTimeValueIsNormalized(tvB) &&
-        "Second timevalue argument to equality comparison was not normalized!");
-    return (tvA.seconds == tvB.seconds) &&
-           (tvA.microseconds == tvB.microseconds);
-}
-/// Operator == overload for time values
-inline bool operator!=(const OSVR_TimeValue &tvA, const OSVR_TimeValue &tvB) {
-    assert(osvrTimeValueIsNormalized(tvA) && "First timevalue argument to "
-                                             "inequality comparison was not "
-                                             "normalized!");
-    assert(osvrTimeValueIsNormalized(tvB) && "Second timevalue argument to "
-                                             "inequality comparison was not "
-                                             "normalized!");
-    return (tvA.seconds != tvB.seconds) ||
-           (tvA.microseconds != tvB.microseconds);
-}
-#endif
-
-/** @} */
-
-#endif
diff --git a/gfx/vr/osvr/Util/Vec2C.h b/gfx/vr/osvr/Util/Vec2C.h
deleted file mode 100644
index 0432a32e7..000000000
--- a/gfx/vr/osvr/Util/Vec2C.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
-#define INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a 2D vector, which represents position
-*/
-typedef struct OSVR_Vec2 {
-    /** @brief Internal array data. */
-    double data[2];
-} OSVR_Vec2;
-
-#define OSVR_VEC_MEMBER(COMPONENT, INDEX)                                      \
-    /** @brief Accessor for Vec2 component COMPONENT */                        \
-    OSVR_INLINE double osvrVec2Get##COMPONENT(OSVR_Vec2 const *v) {            \
-        return v->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for Vec2 component COMPONENT */                          \
-    OSVR_INLINE void osvrVec2Set##COMPONENT(OSVR_Vec2 *v, double val) {        \
-        v->data[INDEX] = val;                                                  \
-    }
-
-OSVR_VEC_MEMBER(X, 0)
-OSVR_VEC_MEMBER(Y, 1)
-
-#undef OSVR_VEC_MEMBER
-
-/** @brief Set a Vec2 to the zero vector */
-OSVR_INLINE void osvrVec2Zero(OSVR_Vec2 *v) {
-    osvrVec2SetX(v, 0);
-    osvrVec2SetY(v, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Vec2 const &vec) {
-    os << "(" << vec.data[0] << ", " << vec.data[1] << ")";
-    return os;
-}
-#endif
-
-#endif // INCLUDED_Vec2C_h_GUID_F9715DE4_2649_4182_0F4C_D62121235D5F
diff --git a/gfx/vr/osvr/Util/Vec3C.h b/gfx/vr/osvr/Util/Vec3C.h
deleted file mode 100644
index 666861174..000000000
--- a/gfx/vr/osvr/Util/Vec3C.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/** @file
-    @brief Header
-
-    Must be c-safe!
-
-    @date 2014
-
-    @author
-    Sensics, Inc.
-    <http://sensics.com/osvr>
-*/
-
-/*
-// Copyright 2014 Sensics, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// 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.
-*/
-
-#ifndef INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE
-#define INCLUDED_Vec3C_h_GUID_BF4E98ED_74CF_4785_DB61_109A00BA74DE
-
-/* Internal Includes */
-#include <osvr/Util/APIBaseC.h>
-
-/* Library/third-party includes */
-/* none */
-
-/* Standard includes */
-/* none */
-
-OSVR_EXTERN_C_BEGIN
-
-/** @addtogroup UtilMath
-    @{
-*/
-/** @brief A structure defining a 3D vector, often a position/translation.
-*/
-typedef struct OSVR_Vec3 {
-    /** @brief Internal array data. */
-    double data[3];
-} OSVR_Vec3;
-
-#define OSVR_VEC_MEMBER(COMPONENT, INDEX)                                      \
-    /** @brief Accessor for Vec3 component COMPONENT */                        \
-    OSVR_INLINE double osvrVec3Get##COMPONENT(OSVR_Vec3 const *v) {            \
-        return v->data[INDEX];                                                 \
-    }                                                                          \
-    /** @brief Setter for Vec3 component COMPONENT */                          \
-    OSVR_INLINE void osvrVec3Set##COMPONENT(OSVR_Vec3 *v, double val) {        \
-        v->data[INDEX] = val;                                                  \
-    }
-
-OSVR_VEC_MEMBER(X, 0)
-OSVR_VEC_MEMBER(Y, 1)
-OSVR_VEC_MEMBER(Z, 2)
-
-#undef OSVR_VEC_MEMBER
-
-/** @brief Set a Vec3 to the zero vector */
-OSVR_INLINE void osvrVec3Zero(OSVR_Vec3 *v) {
-    osvrVec3SetX(v, 0);
-    osvrVec3SetY(v, 0);
-    osvrVec3SetZ(v, 0);
-}
-
-/** @} */
-
-OSVR_EXTERN_C_END
-
-#ifdef __cplusplus
-template <typename StreamType>
-inline StreamType &operator<<(StreamType &os, OSVR_Vec3 const &vec) {
-    os << "(" << vec.data[0] << ", " << vec.data[1] << ", " << vec.data[2]
-       << ")";
-    return os;
-}
-#endif
-
-#endif