oh_device.h

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// Copyright 2019, Collabora, Ltd.
// SPDX-License-Identifier: BSL-1.0
/*!
 * @file
 * @brief  Interface to OpenHMD driver code.
 * @author Jakob Bornecrantz <jakob@collabora.com>
 * @ingroup drv_ohmd
 */

#pragma once

#include "math/m_api.h"
#include "xrt/xrt_device.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct ohmd_context ohmd_context;
typedef struct ohmd_device ohmd_device;

struct oh_device
{
        struct xrt_device base;
        ohmd_context *ctx;
        ohmd_device *dev;

        bool skip_ang_vel;

        int64_t last_update;
        struct xrt_space_relation last_relation;

        bool print_spew;
        bool print_debug;
        bool enable_finite_difference;
};

static inline struct oh_device *
oh_device(struct xrt_device *xdev)
{
        return (struct oh_device *)xdev;
}

struct oh_device *
oh_device_create(ohmd_context *ctx,
                 ohmd_device *dev,
                 const char *prod,
                 bool print_spew,
                 bool print_debug);

#define OH_SPEW(c, ...)                                                        \
        do {                                                                   \
                if (c->print_spew) {                                           \
                        fprintf(stderr, "%s - ", __func__);                    \
                        fprintf(stderr, __VA_ARGS__);                          \
                        fprintf(stderr, "\n");                                 \
                }                                                              \
        } while (false)

#define OH_DEBUG(c, ...)                                                       \
        do {                                                                   \
                if (c->print_debug) {                                          \
                        fprintf(stderr, "%s - ", __func__);                    \
                        fprintf(stderr, __VA_ARGS__);                          \
                        fprintf(stderr, "\n");                                 \
                }                                                              \
        } while (false)

#define OH_ERROR(c, ...)                                                       \
        do {                                                                   \
                fprintf(stderr, "%s - ", __func__);                            \
                fprintf(stderr, __VA_ARGS__);                                  \
                fprintf(stderr, "\n");                                         \
        } while (false)


#ifdef __cplusplus
}
#endif