Add a debug report for 0x17 packets on Reverb G2 that
report controller statuses. The statuses seen so far
are 0x0 for unpaired, 0x1 for paired but offline, and
0x2 for online. Paired reports provide VID and PID for the
associated motion controller.
Handle the debug message packet from the bluetooth
interface on the HP G2. There might be other packet
types, but that's the only one I've seen so far.
Compute the frame size required for the cameras on a given
headset.
Copy the pixels out into an xrt_frame, then send it
to a debug sink - one for SLAM tracking exposures, and
1 for controller frames.
Based on a patch by Jakob Bornecrantz
Older linux kernels like 4.15 don't have V4L2_CID_DIGITAL_GAIN or
V4L2_CTRL_FLAG_MODIFY_LAYOUT, add conditional guards to build
successfully on systems with such kernels.
When building on linux and OPENGL_GLX OFF compilation fails with the
following error:
-----------------------------------------------------------------------
../../state_trackers/oxr/libst_oxr.a(oxr_session_gfx_gl.c.o): In function `oxr_session_populate_gl_xlib':
oxr_session_gfx_gl.c:(.text+0x5c): undefined reference to `xrt_gfx_provider_create_gl_xlib'
collect2: error: ld returned 1 exit status
src/xrt/targets/openxr/CMakeFiles/openxr_monado.dir/build.make:126: recipe for target 'src/xrt/targets/openxr/libopenxr_monado.so' failed
make[2]: *** [src/xrt/targets/openxr/libopenxr_monado.so] Error 1
CMakeFiles/Makefile2:2490: recipe for target 'src/xrt/targets/openxr/CMakeFiles/openxr_monado.dir/all' failed
make[1]: *** [src/xrt/targets/openxr/CMakeFiles/openxr_monado.dir/all] Error 2
Makefile:145: recipe for target 'all' failed
make: *** [all] Error 2
-----------------------------------------------------------------------
Apparently the gl_xlib backend really depends on GLX specifically, so
fix the issue by reflecting that in the conditionally compiled blocks.
This matches the OpenXR usage: the array is the plural of the element type,
and the count is the singular element type plus "count" (usually CountOutput
because of the two-call idiom)
Includes fixes to other code to match API changes.
