mirror of
https://gitlab.freedesktop.org/monado/monado.git
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235 lines
6.8 KiB
C
235 lines
6.8 KiB
C
// Copyright 2018-2019, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Holds session related functions.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup oxr_main
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include <math.h>
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#include "util/u_debug.h"
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#include "util/u_time.h"
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#include "util/u_misc.h"
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#include "xrt/xrt_compiler.h"
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#include "xrt/xrt_prober.h"
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#include "oxr_objects.h"
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#include "oxr_logger.h"
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#include "oxr_handle.h"
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DEBUG_GET_ONCE_FLOAT_OPTION(lfov_left, "OXR_OVERRIDE_LFOV_LEFT", 0.0f)
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DEBUG_GET_ONCE_FLOAT_OPTION(lfov_right, "OXR_OVERRIDE_LFOV_RIGHT", 0.0f)
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DEBUG_GET_ONCE_FLOAT_OPTION(lfov_up, "OXR_OVERRIDE_LFOV_UP", 0.0f)
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DEBUG_GET_ONCE_FLOAT_OPTION(lfov_down, "OXR_OVERRIDE_LFOV_DOWN", 0.0f)
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static inline int32_t
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radtodeg_for_display(float radians)
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{
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return (int32_t)(radians * 180 * M_1_PI);
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}
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static inline void
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xdev_destroy(struct xrt_device **xdev_ptr)
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{
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struct xrt_device *xdev = *xdev_ptr;
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if (xdev == NULL) {
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return;
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}
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xdev->destroy(xdev);
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*xdev_ptr = NULL;
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}
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static XrResult
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oxr_instance_destroy(struct oxr_logger *log, struct oxr_handle_base *hb)
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{
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struct oxr_instance *inst = (struct oxr_instance *)hb;
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oxr_path_destroy_all(log, inst);
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if (inst->path_store != NULL) {
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u_hashset_destroy(&inst->path_store);
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}
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xdev_destroy(&inst->system.head);
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xdev_destroy(&inst->system.left);
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xdev_destroy(&inst->system.right);
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xrt_prober_destroy(&inst->prober);
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time_state_destroy(inst->timekeeping);
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inst->timekeeping = NULL;
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free(inst);
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return XR_SUCCESS;
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}
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static void
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cache_path(struct oxr_logger *log,
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struct oxr_instance *inst,
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const char *str,
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XrPath *out_path)
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{
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oxr_path_get_or_create(log, inst, str, strlen(str), out_path);
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}
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XrResult
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oxr_instance_create(struct oxr_logger *log,
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const XrInstanceCreateInfo *createInfo,
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struct oxr_instance **out_instance)
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{
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struct oxr_instance *inst = NULL;
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struct xrt_device *xdevs[3] = {0};
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int h_ret, p_ret;
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OXR_ALLOCATE_HANDLE_OR_RETURN(log, inst, OXR_XR_DEBUG_INSTANCE,
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oxr_instance_destroy, NULL);
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h_ret = u_hashset_create(&inst->path_store);
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if (h_ret != 0) {
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free(inst);
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return oxr_error(log, XR_ERROR_RUNTIME_FAILURE,
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"Failed to create hashset");
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}
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// Cache certain often looked up paths.
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cache_path(log, inst, "/user", &inst->path_cache.user);
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cache_path(log, inst, "/user/hand/head", &inst->path_cache.head);
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cache_path(log, inst, "/user/hand/left", &inst->path_cache.left);
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cache_path(log, inst, "/user/hand/right", &inst->path_cache.right);
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cache_path(log, inst, "/user/hand/gamepad", &inst->path_cache.gamepad);
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p_ret = xrt_prober_create(&inst->prober);
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if (p_ret != 0) {
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xrt_prober_destroy(&inst->prober);
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return oxr_error(log, XR_ERROR_RUNTIME_FAILURE,
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"Failed to create prober");
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}
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p_ret = xrt_prober_probe(inst->prober);
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if (p_ret != 0) {
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xrt_prober_destroy(&inst->prober);
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return oxr_error(log, XR_ERROR_RUNTIME_FAILURE,
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"Failed to probe device(s)");
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}
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p_ret = xrt_prober_select(inst->prober, xdevs, 3);
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if (p_ret != 0) {
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xrt_prober_destroy(&inst->prober);
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return oxr_error(log, XR_ERROR_RUNTIME_FAILURE,
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"Failed to select device");
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}
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struct xrt_device *dev = xdevs[0];
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const float left_override = debug_get_float_option_lfov_left();
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if (left_override != 0.0f) {
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printf(
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"Overriding left eye angle_left with %f radians (%i°), "
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"and right eye angle_right with %f radians (%i°)\n",
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left_override, radtodeg_for_display(left_override),
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-left_override, radtodeg_for_display(-left_override));
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dev->hmd->views[0].fov.angle_left = left_override;
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dev->hmd->views[1].fov.angle_right = -left_override;
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}
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const float right_override = debug_get_float_option_lfov_right();
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if (right_override != 0.0f) {
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printf(
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"Overriding left eye angle_right with %f radians (%i°), "
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"and right eye angle_left with %f radians (%i°)\n",
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right_override, radtodeg_for_display(right_override),
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-right_override, radtodeg_for_display(-right_override));
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dev->hmd->views[0].fov.angle_right = right_override;
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dev->hmd->views[1].fov.angle_left = -right_override;
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}
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const float up_override = debug_get_float_option_lfov_up();
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if (up_override != 0.0f) {
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printf("Overriding both eyes angle_up with %f radians (%i°)\n",
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up_override, radtodeg_for_display(up_override));
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dev->hmd->views[0].fov.angle_up = up_override;
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dev->hmd->views[1].fov.angle_up = up_override;
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}
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const float down_override = debug_get_float_option_lfov_down();
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if (down_override != 0.0f) {
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printf(
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"Overriding both eyes angle_down with %f radians (%i°)\n",
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down_override, radtodeg_for_display(down_override));
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dev->hmd->views[0].fov.angle_down = down_override;
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dev->hmd->views[1].fov.angle_down = down_override;
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}
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oxr_system_fill_in(log, inst, 1, &inst->system, xdevs[0], xdevs[1],
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xdevs[2]);
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inst->timekeeping = time_state_create();
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inst->headless = false;
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inst->opengl_enable = false;
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inst->vulkan_enable = false;
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for (uint32_t i = 0; i < createInfo->enabledExtensionCount; ++i) {
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if (strcmp(createInfo->enabledExtensionNames[i],
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XR_KHR_HEADLESS_EXTENSION_NAME) == 0) {
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inst->headless = true;
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} else if (strcmp(createInfo->enabledExtensionNames[i],
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XR_KHR_OPENGL_ENABLE_EXTENSION_NAME) == 0) {
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inst->opengl_enable = true;
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} else if (strcmp(createInfo->enabledExtensionNames[i],
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XR_KHR_VULKAN_ENABLE_EXTENSION_NAME) == 0) {
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inst->vulkan_enable = true;
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}
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}
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//! @todo check if this (and other creates) failed?
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*out_instance = inst;
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return XR_SUCCESS;
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}
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XrResult
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oxr_instance_get_properties(struct oxr_logger *log,
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struct oxr_instance *inst,
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XrInstanceProperties *instanceProperties)
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{
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instanceProperties->runtimeVersion = XR_MAKE_VERSION(0, 0, 42);
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strncpy(instanceProperties->runtimeName,
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"Monado(XRT) by Collabora et al", XR_MAX_RUNTIME_NAME_SIZE - 1);
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return XR_SUCCESS;
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}
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#ifdef XR_USE_TIMESPEC
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XrResult
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oxr_instance_convert_time_to_timespec(struct oxr_logger *log,
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struct oxr_instance *inst,
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XrTime time,
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struct timespec *timespecTime)
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{
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time_state_to_timespec(inst->timekeeping, time, timespecTime);
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return XR_SUCCESS;
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}
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XrResult
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oxr_instance_convert_timespec_to_time(struct oxr_logger *log,
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struct oxr_instance *inst,
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const struct timespec *timespecTime,
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XrTime *time)
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{
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*time = time_state_from_timespec(inst->timekeeping, timespecTime);
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return XR_SUCCESS;
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}
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#endif // XR_USE_TIMESPEC
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