blubur_s1_hmd.c File Reference

Implementation of Blubur S1 HMD driver. More...

#include "math/m_api.h"
#include "math/m_mathinclude.h"
#include "math/m_clock_tracking.h"
#include "util/u_device.h"
#include "util/u_distortion_mesh.h"
#include "util/u_misc.h"
#include "util/u_time.h"
#include "util/u_debug.h"
#include "util/u_trace_marker.h"
#include "util/u_linux.h"
#include "util/u_var.h"
#include "blubur_s1_interface.h"
#include "blubur_s1_internal.h"
#include "blubur_s1_protocol.h"

Include dependency graph for blubur_s1_hmd.c:

Data Structures
struct	read_context
struct	blubur_s1_decoded_sample

Macros
#define	S1_TRACE(d, ...)   U_LOG_XDEV_IFL_T(&d->base, d->log_level, __VA_ARGS__)
#define	S1_DEBUG(d, ...)   U_LOG_XDEV_IFL_D(&d->base, d->log_level, __VA_ARGS__)
#define	S1_DEBUG_HEX(d, data, data_size)   U_LOG_XDEV_IFL_D_HEX(&d->base, d->log_level, data, data_size)
#define	S1_INFO(d, ...)   U_LOG_XDEV_IFL_I(&d->base, d->log_level, __VA_ARGS__)
#define	S1_WARN(d, ...)   U_LOG_XDEV_IFL_W(&d->base, d->log_level, __VA_ARGS__)
#define	S1_ERROR(d, ...)   U_LOG_XDEV_IFL_E(&d->base, d->log_level, __VA_ARGS__)
#define	VIEW_SIZE   (1440)
#define	PANEL_WIDTH   (VIEW_SIZE * 2)
#define	READ_STRUCTURE(ctx, dst)   read_into(ctx, dst, sizeof(*dst))

Functions
static struct blubur_s1_hmd *	blubur_s1_hmd (struct xrt_device *xdev)
static void	blubur_s1_hmd_destroy (struct xrt_device *xdev)
static xrt_result_t	blubur_s1_hmd_compute_poly_3k_distortion (struct xrt_device *xdev, uint32_t view, float u, float v, struct xrt_uv_triplet *out_result)
static xrt_result_t	blubur_s1_hmd_compute_test_distortion (struct xrt_device *xdev, uint32_t view, float u, float v, struct xrt_uv_triplet *out_result)
static xrt_result_t	blubur_s1_hmd_update_inputs (struct xrt_device *xdev)
static xrt_result_t	blubur_s1_hmd_get_tracked_pose (struct xrt_device *xdev, enum xrt_input_name name, int64_t at_timestamp_ns, struct xrt_space_relation *out_relation)
static xrt_result_t	blubur_s1_hmd_get_view_poses (struct xrt_device *xdev, const struct xrt_vec3 *default_eye_relation, int64_t at_timestamp_ns, enum xrt_view_type view_type, uint32_t view_count, struct xrt_space_relation *out_head_relation, struct xrt_fov *out_fovs, struct xrt_pose *out_poses)
static void	blubur_s1_hmd_fill_in_poly_3k (struct blubur_s1_hmd *hmd)
static void	read_into (struct read_context *ctx, void *dest, size_t size)
static int32_t	sign21 (uint32_t v)
	Sign-extend a 21-bit signed integer stored in a 32-bit unsigned integer.
static void	blubur_s1_decode_triad (const uint8_t b[8], int32_t out_xyz[3])
	Decode 3×21-bit ints from 8 bytes (little-endian packing)
static void	blubur_s1_decode_sample_pack (const uint8_t sample_pack[32], struct blubur_s1_decoded_sample out_samples[2])
static void	blubur_s1_convert_accel_sample (const int32_t in[3], struct xrt_vec3 *out)
static void	blubur_s1_convert_gyro_sample (const int32_t in[3], struct xrt_vec3 *out)
int	blubur_s1_hmd_tick (struct blubur_s1_hmd *hmd)
static void *	blubur_s1_hmd_thread (void *ptr)
struct blubur_s1_hmd *	blubur_s1_hmd_create (struct os_hid_device *dev, const char *serial)
	Creates a Blubur S1 HMD device from an opened HID handle.

Detailed Description

Implementation of Blubur S1 HMD driver.

Author

Beyley Cardellio ep1cm.nosp@m.1n10.nosp@m.n123@.nosp@m.gmai.nosp@m.l.com

Function Documentation

blubur_s1_decode_triad()

static void blubur_s1_decode_triad ( const uint8_t  b[8], int32_t  out_xyz[3]  )

static

Decode 3×21-bit ints from 8 bytes (little-endian packing)

References sign21().

blubur_s1_hmd_create()

struct blubur_s1_hmd * blubur_s1_hmd_create	(	struct os_hid_device *	dev,
		const char *	serial
	)

Creates a Blubur S1 HMD device from an opened HID handle.

References xrt_hmd_parts::blend_modes, xrt_device::compute_distortion, xrt_device::destroy, xrt_hmd_parts::distortion, xrt_device::get_tracked_pose, xrt_device::get_view_poses, xrt_device::hmd, xrt_device::inputs, xrt_hmd_parts::models, xrt_device::name, xrt_hmd_parts::nominal_frame_interval_ns, xrt_hmd_parts::preferred, xrt_hmd_parts::screens, xrt_device::serial, xrt_device::str, xrt_device::supported, u_distortion_mesh_fill_in_compute(), u_var_add_root(), xrt_device::update_inputs, xrt_view::viewport, xrt_hmd_parts::views, and XRT_INPUT_GENERIC_HEAD_POSE.

Referenced by blubur_s1_found().

sign21()

static int32_t sign21 ( uint32_t  v )

static

Sign-extend a 21-bit signed integer stored in a 32-bit unsigned integer.

Referenced by blubur_s1_decode_triad().