184 lines
7.5 KiB
C++
184 lines
7.5 KiB
C++
/**************************************************************************/
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/* openxr_fb_foveation_extension.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "openxr_fb_foveation_extension.h"
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#include "core/config/project_settings.h"
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OpenXRFBFoveationExtension *OpenXRFBFoveationExtension::singleton = nullptr;
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OpenXRFBFoveationExtension *OpenXRFBFoveationExtension::get_singleton() {
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return singleton;
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}
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OpenXRFBFoveationExtension::OpenXRFBFoveationExtension(const String &p_rendering_driver) {
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singleton = this;
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rendering_driver = p_rendering_driver;
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swapchain_update_state_ext = OpenXRFBUpdateSwapchainExtension::get_singleton();
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int fov_level = GLOBAL_GET("xr/openxr/foveation_level");
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if (fov_level >= 0 && fov_level < 4) {
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foveation_level = XrFoveationLevelFB(fov_level);
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}
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bool fov_dyn = GLOBAL_GET("xr/openxr/foveation_dynamic");
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foveation_dynamic = fov_dyn ? XR_FOVEATION_DYNAMIC_LEVEL_ENABLED_FB : XR_FOVEATION_DYNAMIC_DISABLED_FB;
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swapchain_create_info_foveation_fb.type = XR_TYPE_SWAPCHAIN_CREATE_INFO_FOVEATION_FB;
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swapchain_create_info_foveation_fb.next = nullptr;
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swapchain_create_info_foveation_fb.flags = 0;
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}
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OpenXRFBFoveationExtension::~OpenXRFBFoveationExtension() {
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singleton = nullptr;
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swapchain_update_state_ext = nullptr;
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}
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HashMap<String, bool *> OpenXRFBFoveationExtension::get_requested_extensions() {
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HashMap<String, bool *> request_extensions;
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if (rendering_driver == "vulkan") {
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// This is currently only supported on OpenGL, but we may add Vulkan support in the future...
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} else if (rendering_driver == "opengl3") {
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request_extensions[XR_FB_FOVEATION_EXTENSION_NAME] = &fb_foveation_ext;
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request_extensions[XR_FB_FOVEATION_CONFIGURATION_EXTENSION_NAME] = &fb_foveation_configuration_ext;
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}
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return request_extensions;
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}
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void OpenXRFBFoveationExtension::on_instance_created(const XrInstance p_instance) {
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if (fb_foveation_ext) {
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EXT_INIT_XR_FUNC(xrCreateFoveationProfileFB);
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EXT_INIT_XR_FUNC(xrDestroyFoveationProfileFB);
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}
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if (fb_foveation_configuration_ext) {
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// nothing to register here...
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}
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}
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void OpenXRFBFoveationExtension::on_instance_destroyed() {
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fb_foveation_ext = false;
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fb_foveation_configuration_ext = false;
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}
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bool OpenXRFBFoveationExtension::is_enabled() const {
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return swapchain_update_state_ext != nullptr && swapchain_update_state_ext->is_enabled() && fb_foveation_ext && fb_foveation_configuration_ext;
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}
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void *OpenXRFBFoveationExtension::set_swapchain_create_info_and_get_next_pointer(void *p_next_pointer) {
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if (is_enabled()) {
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swapchain_create_info_foveation_fb.next = p_next_pointer;
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return &swapchain_create_info_foveation_fb;
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} else {
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return p_next_pointer;
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}
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}
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void OpenXRFBFoveationExtension::on_main_swapchains_created() {
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update_profile();
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}
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XrFoveationLevelFB OpenXRFBFoveationExtension::get_foveation_level() const {
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return foveation_level;
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}
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void OpenXRFBFoveationExtension::set_foveation_level(XrFoveationLevelFB p_foveation_level) {
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foveation_level = p_foveation_level;
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// Update profile will do nothing if we're not yet initialized.
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update_profile();
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}
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XrFoveationDynamicFB OpenXRFBFoveationExtension::get_foveation_dynamic() const {
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return foveation_dynamic;
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}
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void OpenXRFBFoveationExtension::set_foveation_dynamic(XrFoveationDynamicFB p_foveation_dynamic) {
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foveation_dynamic = p_foveation_dynamic;
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// Update profile will do nothing if we're not yet initialized.
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update_profile();
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}
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void OpenXRFBFoveationExtension::_update_profile() {
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// Must be called from rendering thread!
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ERR_NOT_ON_RENDER_THREAD;
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OpenXRFBFoveationExtension *fov_ext = OpenXRFBFoveationExtension::get_singleton();
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ERR_FAIL_NULL(fov_ext);
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if (!fov_ext->is_enabled()) {
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return;
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}
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OpenXRAPI *openxr_api = OpenXRAPI::get_singleton();
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ERR_FAIL_NULL(openxr_api);
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XrSwapchain main_color_swapchain = openxr_api->get_color_swapchain();
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if (main_color_swapchain == XR_NULL_HANDLE) {
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// Our swapchain hasn't been created yet, we'll call this again once it has.
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return;
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}
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XrFoveationLevelProfileCreateInfoFB level_profile_create_info;
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level_profile_create_info.type = XR_TYPE_FOVEATION_LEVEL_PROFILE_CREATE_INFO_FB;
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level_profile_create_info.next = nullptr;
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level_profile_create_info.level = fov_ext->foveation_level;
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level_profile_create_info.verticalOffset = 0.0f;
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level_profile_create_info.dynamic = fov_ext->foveation_dynamic;
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XrFoveationProfileCreateInfoFB profile_create_info;
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profile_create_info.type = XR_TYPE_FOVEATION_PROFILE_CREATE_INFO_FB;
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profile_create_info.next = &level_profile_create_info;
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XrFoveationProfileFB foveation_profile;
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XrResult result = fov_ext->xrCreateFoveationProfileFB(openxr_api->get_session(), &profile_create_info, &foveation_profile);
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if (XR_FAILED(result)) {
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print_line("OpenXR: Unable to create the foveation profile [", openxr_api->get_error_string(result), "]");
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return;
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}
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XrSwapchainStateFoveationFB foveation_update_state;
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foveation_update_state.type = XR_TYPE_SWAPCHAIN_STATE_FOVEATION_FB;
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foveation_update_state.profile = foveation_profile;
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result = fov_ext->swapchain_update_state_ext->xrUpdateSwapchainFB(main_color_swapchain, (XrSwapchainStateBaseHeaderFB *)&foveation_update_state);
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if (XR_FAILED(result)) {
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print_line("OpenXR: Unable to update the swapchain [", openxr_api->get_error_string(result), "]");
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// We still want to destroy our profile so keep going...
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}
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result = fov_ext->xrDestroyFoveationProfileFB(foveation_profile);
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if (XR_FAILED(result)) {
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print_line("OpenXR: Unable to destroy the foveation profile [", openxr_api->get_error_string(result), "]");
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}
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}
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