mirror of
https://gitlab.freedesktop.org/monado/monado.git
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320 lines
10 KiB
C
320 lines
10 KiB
C
// Copyright 2018-2020, 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 system related entrypoints.
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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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <assert.h>
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#include "xrt/xrt_device.h"
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#include "util/u_debug.h"
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#include "oxr_objects.h"
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#include "oxr_logger.h"
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#include "oxr_two_call.h"
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#include "oxr_chain.h"
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// clang-format off
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DEBUG_GET_ONCE_NUM_OPTION(scale_percentage, "OXR_VIEWPORT_SCALE_PERCENTAGE", 100)
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// clang-format on
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static bool
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oxr_system_matches(struct oxr_logger *log,
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struct oxr_system *sys,
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XrFormFactor form_factor)
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{
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return form_factor == sys->form_factor;
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}
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XrResult
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oxr_system_select(struct oxr_logger *log,
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struct oxr_system **systems,
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uint32_t num_systems,
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XrFormFactor form_factor,
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struct oxr_system **out_selected)
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{
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if (num_systems == 0) {
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return oxr_error(
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log, XR_ERROR_FORM_FACTOR_UNSUPPORTED,
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"(getInfo->formFactor) no system available (given: %i)",
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form_factor);
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}
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struct oxr_system *selected = NULL;
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for (uint32_t i = 0; i < num_systems; i++) {
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if (oxr_system_matches(log, systems[i], form_factor)) {
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selected = systems[i];
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break;
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}
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}
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if (selected == NULL) {
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return oxr_error(log, XR_ERROR_FORM_FACTOR_UNSUPPORTED,
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"(getInfo->formFactor) no matching system "
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"(given: %i, first: %i)",
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form_factor, systems[0]->form_factor);
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}
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*out_selected = selected;
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return XR_SUCCESS;
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}
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XrResult
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oxr_system_verify_id(struct oxr_logger *log,
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const struct oxr_instance *inst,
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XrSystemId systemId)
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{
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if (systemId != 1) {
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return oxr_error(log, XR_ERROR_SYSTEM_INVALID,
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"Invalid system %" PRIu64, systemId);
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}
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return XR_SUCCESS;
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}
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XrResult
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oxr_system_get_by_id(struct oxr_logger *log,
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struct oxr_instance *inst,
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XrSystemId systemId,
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struct oxr_system **system)
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{
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XrResult result = oxr_system_verify_id(log, inst, systemId);
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if (result != XR_SUCCESS) {
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return result;
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}
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/* right now only have one system. */
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*system = &inst->system;
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return XR_SUCCESS;
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}
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XrResult
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oxr_system_fill_in(struct oxr_logger *log,
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struct oxr_instance *inst,
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XrSystemId systemId,
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struct oxr_system *sys)
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{
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//! @todo handle other subaction paths?
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sys->inst = inst;
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sys->systemId = systemId;
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sys->form_factor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
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sys->view_config_type = XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO;
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// Headless.
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if (sys->xcn == NULL) {
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sys->blend_modes[0] = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
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sys->num_blend_modes = 1;
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return XR_SUCCESS;
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}
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double scale = debug_get_num_option_scale_percentage() / 100.0;
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if (scale > 2.0) {
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scale = 2.0;
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oxr_log(log, "Clamped scale to 200%%\n");
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}
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struct xrt_compositor_info *info = &sys->xcn->base.info;
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// clang-format off
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uint32_t w0 = (uint32_t)(info->views[0].recommended.width_pixels * scale);
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uint32_t h0 = (uint32_t)(info->views[0].recommended.height_pixels * scale);
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uint32_t w1 = (uint32_t)(info->views[1].recommended.width_pixels * scale);
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uint32_t h1 = (uint32_t)(info->views[1].recommended.height_pixels * scale);
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uint32_t w0_2 = info->views[0].max.width_pixels;
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uint32_t h0_2 = info->views[0].max.height_pixels;
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uint32_t w1_2 = info->views[1].max.width_pixels;
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uint32_t h1_2 = info->views[1].max.height_pixels;
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#define imin(a, b) (a < b ? a : b)
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w0 = imin(w0, w0_2);
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h0 = imin(h0, h0_2);
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w1 = imin(w1, w1_2);
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h1 = imin(h1, h1_2);
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#undef imin
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sys->views[0].recommendedImageRectWidth = w0;
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sys->views[0].maxImageRectWidth = w0_2;
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sys->views[0].recommendedImageRectHeight = h0;
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sys->views[0].maxImageRectHeight = h0_2;
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sys->views[0].recommendedSwapchainSampleCount = info->views[0].recommended.sample_count;
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sys->views[0].maxSwapchainSampleCount = info->views[0].max.sample_count;
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sys->views[1].recommendedImageRectWidth = w1;
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sys->views[1].maxImageRectWidth = w1_2;
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sys->views[1].recommendedImageRectHeight = h1;
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sys->views[1].maxImageRectHeight = h1_2;
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sys->views[1].recommendedSwapchainSampleCount = info->views[1].recommended.sample_count;
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sys->views[1].maxSwapchainSampleCount = info->views[1].max.sample_count;
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// clang-format on
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struct xrt_device *head = GET_XDEV_BY_ROLE(sys, head);
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uint32_t i = 0;
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if (head->hmd->blend_mode & XRT_BLEND_MODE_OPAQUE) {
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sys->blend_modes[i++] = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
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}
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if (head->hmd->blend_mode & XRT_BLEND_MODE_ADDITIVE) {
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sys->blend_modes[i++] = XR_ENVIRONMENT_BLEND_MODE_ADDITIVE;
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}
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if (head->hmd->blend_mode & XRT_BLEND_MODE_ALPHA_BLEND) {
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sys->blend_modes[i++] = XR_ENVIRONMENT_BLEND_MODE_ALPHA_BLEND;
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}
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sys->num_blend_modes = i;
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assert(i < ARRAY_SIZE(sys->blend_modes));
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return XR_SUCCESS;
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}
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bool
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oxr_system_get_hand_tracking_support(struct oxr_logger *log,
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struct oxr_instance *inst)
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{
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struct oxr_system *sys = &inst->system;
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struct xrt_device *left = GET_XDEV_BY_ROLE(sys, left);
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struct xrt_device *right = GET_XDEV_BY_ROLE(sys, right);
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bool left_supported = left && left->hand_tracking_supported;
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bool right_supported = right && right->hand_tracking_supported;
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return left_supported || right_supported;
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}
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XrResult
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oxr_system_get_properties(struct oxr_logger *log,
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struct oxr_system *sys,
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XrSystemProperties *properties)
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{
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properties->vendorId = 42;
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properties->systemId = sys->systemId;
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struct xrt_device *xdev = GET_XDEV_BY_ROLE(sys, head);
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// The magical 247 number, is to silence warnings.
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snprintf(properties->systemName, XR_MAX_SYSTEM_NAME_SIZE,
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"Monado: %.*s", 247, xdev->str);
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// Get from compositor.
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struct xrt_compositor_info *info = &sys->xcn->base.info;
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properties->graphicsProperties.maxLayerCount = info->max_layers;
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properties->graphicsProperties.maxSwapchainImageWidth = 1024 * 16;
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properties->graphicsProperties.maxSwapchainImageHeight = 1024 * 16;
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properties->trackingProperties.orientationTracking =
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xdev->orientation_tracking_supported;
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properties->trackingProperties.positionTracking =
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xdev->position_tracking_supported;
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XrSystemHandTrackingPropertiesEXT *hand_tracking_props =
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OXR_GET_OUTPUT_FROM_CHAIN(
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properties, XR_TYPE_SYSTEM_HAND_TRACKING_PROPERTIES_EXT,
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XrSystemHandTrackingPropertiesEXT);
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if (hand_tracking_props) {
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if (!sys->inst->extensions.EXT_hand_tracking) {
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return oxr_error(
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log, XR_ERROR_VALIDATION_FAILURE,
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"XR_EXT_hand_tracking is not enabled.");
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}
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hand_tracking_props->supportsHandTracking =
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oxr_system_get_hand_tracking_support(log, sys->inst);
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}
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return XR_SUCCESS;
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}
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XrResult
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oxr_system_enumerate_view_confs(struct oxr_logger *log,
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struct oxr_system *sys,
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uint32_t viewConfigurationTypeCapacityInput,
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uint32_t *viewConfigurationTypeCountOutput,
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XrViewConfigurationType *viewConfigurationTypes)
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{
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OXR_TWO_CALL_HELPER(log, viewConfigurationTypeCapacityInput,
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viewConfigurationTypeCountOutput,
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viewConfigurationTypes, 1, &sys->view_config_type,
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XR_SUCCESS);
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}
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XrResult
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oxr_system_enumerate_blend_modes(struct oxr_logger *log,
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struct oxr_system *sys,
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XrViewConfigurationType viewConfigurationType,
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uint32_t environmentBlendModeCapacityInput,
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uint32_t *environmentBlendModeCountOutput,
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XrEnvironmentBlendMode *environmentBlendModes)
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{
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//! @todo Take into account viewConfigurationType
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OXR_TWO_CALL_HELPER(log, environmentBlendModeCapacityInput,
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environmentBlendModeCountOutput,
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environmentBlendModes, sys->num_blend_modes,
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sys->blend_modes, XR_SUCCESS);
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}
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XrResult
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oxr_system_get_view_conf_properties(
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struct oxr_logger *log,
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struct oxr_system *sys,
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XrViewConfigurationType viewConfigurationType,
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XrViewConfigurationProperties *configurationProperties)
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{
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if (viewConfigurationType != sys->view_config_type) {
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return oxr_error(log,
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XR_ERROR_VIEW_CONFIGURATION_TYPE_UNSUPPORTED,
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"Invalid view configuration type");
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}
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// clang-format off
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configurationProperties->viewConfigurationType = sys->view_config_type;
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configurationProperties->fovMutable = XR_FALSE;
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// clang-format on
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return XR_SUCCESS;
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}
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static void
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view_configuration_view_fill_in(XrViewConfigurationView *target_view,
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XrViewConfigurationView *source_view)
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{
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// clang-format off
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target_view->recommendedImageRectWidth = source_view->recommendedImageRectWidth;
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target_view->maxImageRectWidth = source_view->maxImageRectWidth;
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target_view->recommendedImageRectHeight = source_view->recommendedImageRectHeight;
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target_view->maxImageRectHeight = source_view->maxImageRectHeight;
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target_view->recommendedSwapchainSampleCount = source_view->recommendedSwapchainSampleCount;
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target_view->maxSwapchainSampleCount = source_view->maxSwapchainSampleCount;
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// clang-format on
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}
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XrResult
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oxr_system_enumerate_view_conf_views(
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struct oxr_logger *log,
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struct oxr_system *sys,
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XrViewConfigurationType viewConfigurationType,
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uint32_t viewCapacityInput,
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uint32_t *viewCountOutput,
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XrViewConfigurationView *views)
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{
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if (viewConfigurationType != sys->view_config_type) {
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return oxr_error(log,
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XR_ERROR_VIEW_CONFIGURATION_TYPE_UNSUPPORTED,
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"Invalid view configuration type");
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}
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OXR_TWO_CALL_FILL_IN_HELPER(log, viewCapacityInput, viewCountOutput,
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views, 2, view_configuration_view_fill_in,
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sys->views, XR_SUCCESS);
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}
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