247 lines
8.9 KiB
C++
247 lines
8.9 KiB
C++
/**************************************************************************/
|
|
/* openxr_fb_passthrough_extension_wrapper.cpp */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
#include "openxr_fb_passthrough_extension_wrapper.h"
|
|
|
|
#include "core/os/os.h"
|
|
#include "scene/main/viewport.h"
|
|
#include "scene/main/window.h"
|
|
|
|
using namespace godot;
|
|
|
|
OpenXRFbPassthroughExtensionWrapper *OpenXRFbPassthroughExtensionWrapper::singleton = nullptr;
|
|
|
|
OpenXRFbPassthroughExtensionWrapper *OpenXRFbPassthroughExtensionWrapper::get_singleton() {
|
|
return singleton;
|
|
}
|
|
|
|
OpenXRFbPassthroughExtensionWrapper::OpenXRFbPassthroughExtensionWrapper() {
|
|
singleton = this;
|
|
}
|
|
|
|
OpenXRFbPassthroughExtensionWrapper::~OpenXRFbPassthroughExtensionWrapper() {
|
|
cleanup();
|
|
}
|
|
|
|
HashMap<String, bool *> OpenXRFbPassthroughExtensionWrapper::get_requested_extensions() {
|
|
HashMap<String, bool *> request_extensions;
|
|
|
|
request_extensions[XR_FB_PASSTHROUGH_EXTENSION_NAME] = &fb_passthrough_ext;
|
|
request_extensions[XR_FB_TRIANGLE_MESH_EXTENSION_NAME] = &fb_triangle_mesh_ext;
|
|
|
|
return request_extensions;
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::cleanup() {
|
|
fb_passthrough_ext = false;
|
|
fb_triangle_mesh_ext = false;
|
|
}
|
|
|
|
Viewport *OpenXRFbPassthroughExtensionWrapper::get_main_viewport() {
|
|
MainLoop *main_loop = OS::get_singleton()->get_main_loop();
|
|
if (!main_loop) {
|
|
print_error("Unable to retrieve main loop");
|
|
return nullptr;
|
|
}
|
|
|
|
auto *scene_tree = Object::cast_to<SceneTree>(main_loop);
|
|
if (!scene_tree) {
|
|
print_error("Unable to retrieve scene tree");
|
|
return nullptr;
|
|
}
|
|
|
|
Viewport *viewport = scene_tree->get_root()->get_viewport();
|
|
return viewport;
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::on_instance_created(const XrInstance instance) {
|
|
if (fb_passthrough_ext) {
|
|
bool result = initialize_fb_passthrough_extension(instance);
|
|
if (!result) {
|
|
print_error("Failed to initialize fb_passthrough extension");
|
|
fb_passthrough_ext = false;
|
|
}
|
|
}
|
|
|
|
if (fb_triangle_mesh_ext) {
|
|
bool result = initialize_fb_triangle_mesh_extension(instance);
|
|
if (!result) {
|
|
print_error("Failed to initialize fb_triangle_mesh extension");
|
|
fb_triangle_mesh_ext = false;
|
|
}
|
|
}
|
|
|
|
if (fb_passthrough_ext) {
|
|
OpenXRAPI::get_singleton()->register_composition_layer_provider(this);
|
|
}
|
|
}
|
|
|
|
bool OpenXRFbPassthroughExtensionWrapper::is_passthrough_enabled() {
|
|
return fb_passthrough_ext && passthrough_handle != XR_NULL_HANDLE && passthrough_layer != XR_NULL_HANDLE;
|
|
}
|
|
|
|
bool OpenXRFbPassthroughExtensionWrapper::start_passthrough() {
|
|
if (passthrough_handle == XR_NULL_HANDLE) {
|
|
return false;
|
|
}
|
|
|
|
if (is_passthrough_enabled()) {
|
|
return true;
|
|
}
|
|
|
|
// Start the passthrough feature
|
|
XrResult result = xrPassthroughStartFB(passthrough_handle);
|
|
if (!is_valid_passthrough_result(result, "Failed to start passthrough")) {
|
|
stop_passthrough();
|
|
return false;
|
|
}
|
|
|
|
// Create the passthrough layer
|
|
XrPassthroughLayerCreateInfoFB passthrough_layer_config = {
|
|
XR_TYPE_PASSTHROUGH_LAYER_CREATE_INFO_FB,
|
|
nullptr,
|
|
passthrough_handle,
|
|
XR_PASSTHROUGH_IS_RUNNING_AT_CREATION_BIT_FB,
|
|
XR_PASSTHROUGH_LAYER_PURPOSE_RECONSTRUCTION_FB,
|
|
};
|
|
result = xrCreatePassthroughLayerFB(OpenXRAPI::get_singleton()->get_session(), &passthrough_layer_config, &passthrough_layer);
|
|
if (!is_valid_passthrough_result(result, "Failed to create the passthrough layer")) {
|
|
stop_passthrough();
|
|
return false;
|
|
}
|
|
|
|
// Check if the the viewport has transparent background
|
|
Viewport *viewport = get_main_viewport();
|
|
if (viewport && !viewport->has_transparent_background()) {
|
|
print_error("Main viewport doesn't have transparent background! Passthrough may not properly render.");
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::on_session_created(const XrSession session) {
|
|
if (fb_passthrough_ext) {
|
|
// Create the passthrough feature and start it.
|
|
XrPassthroughCreateInfoFB passthrough_create_info = {
|
|
XR_TYPE_PASSTHROUGH_CREATE_INFO_FB,
|
|
nullptr,
|
|
0,
|
|
};
|
|
|
|
XrResult result = xrCreatePassthroughFB(OpenXRAPI::get_singleton()->get_session(), &passthrough_create_info, &passthrough_handle);
|
|
if (!OpenXRAPI::get_singleton()->xr_result(result, "Failed to create passthrough")) {
|
|
passthrough_handle = XR_NULL_HANDLE;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
XrCompositionLayerBaseHeader *OpenXRFbPassthroughExtensionWrapper::get_composition_layer() {
|
|
if (is_passthrough_enabled()) {
|
|
composition_passthrough_layer.layerHandle = passthrough_layer;
|
|
return (XrCompositionLayerBaseHeader *)&composition_passthrough_layer;
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::stop_passthrough() {
|
|
if (!fb_passthrough_ext) {
|
|
return;
|
|
}
|
|
|
|
XrResult result;
|
|
if (passthrough_layer != XR_NULL_HANDLE) {
|
|
// Destroy the layer
|
|
result = xrDestroyPassthroughLayerFB(passthrough_layer);
|
|
OpenXRAPI::get_singleton()->xr_result(result, "Unable to destroy passthrough layer");
|
|
passthrough_layer = XR_NULL_HANDLE;
|
|
}
|
|
|
|
if (passthrough_handle != XR_NULL_HANDLE) {
|
|
result = xrPassthroughPauseFB(passthrough_handle);
|
|
OpenXRAPI::get_singleton()->xr_result(result, "Unable to stop passthrough feature");
|
|
}
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::on_session_destroyed() {
|
|
if (fb_passthrough_ext) {
|
|
stop_passthrough();
|
|
|
|
XrResult result;
|
|
if (passthrough_handle != XR_NULL_HANDLE) {
|
|
result = xrDestroyPassthroughFB(passthrough_handle);
|
|
OpenXRAPI::get_singleton()->xr_result(result, "Unable to destroy passthrough feature");
|
|
passthrough_handle = XR_NULL_HANDLE;
|
|
}
|
|
}
|
|
}
|
|
|
|
void OpenXRFbPassthroughExtensionWrapper::on_instance_destroyed() {
|
|
if (fb_passthrough_ext) {
|
|
OpenXRAPI::get_singleton()->unregister_composition_layer_provider(this);
|
|
}
|
|
cleanup();
|
|
}
|
|
|
|
bool OpenXRFbPassthroughExtensionWrapper::initialize_fb_passthrough_extension(const XrInstance p_instance) {
|
|
ERR_FAIL_NULL_V(OpenXRAPI::get_singleton(), false);
|
|
|
|
EXT_INIT_XR_FUNC_V(xrCreatePassthroughFB);
|
|
EXT_INIT_XR_FUNC_V(xrDestroyPassthroughFB);
|
|
EXT_INIT_XR_FUNC_V(xrPassthroughStartFB);
|
|
EXT_INIT_XR_FUNC_V(xrPassthroughPauseFB);
|
|
EXT_INIT_XR_FUNC_V(xrCreatePassthroughLayerFB);
|
|
EXT_INIT_XR_FUNC_V(xrDestroyPassthroughLayerFB);
|
|
EXT_INIT_XR_FUNC_V(xrPassthroughLayerPauseFB);
|
|
EXT_INIT_XR_FUNC_V(xrPassthroughLayerResumeFB);
|
|
EXT_INIT_XR_FUNC_V(xrPassthroughLayerSetStyleFB);
|
|
EXT_INIT_XR_FUNC_V(xrCreateGeometryInstanceFB);
|
|
EXT_INIT_XR_FUNC_V(xrDestroyGeometryInstanceFB);
|
|
EXT_INIT_XR_FUNC_V(xrGeometryInstanceSetTransformFB);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool OpenXRFbPassthroughExtensionWrapper::initialize_fb_triangle_mesh_extension(const XrInstance p_instance) {
|
|
ERR_FAIL_NULL_V(OpenXRAPI::get_singleton(), false);
|
|
|
|
EXT_INIT_XR_FUNC_V(xrCreateTriangleMeshFB);
|
|
EXT_INIT_XR_FUNC_V(xrDestroyTriangleMeshFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshGetVertexBufferFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshGetIndexBufferFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshBeginUpdateFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshEndUpdateFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshBeginVertexBufferUpdateFB);
|
|
EXT_INIT_XR_FUNC_V(xrTriangleMeshEndVertexBufferUpdateFB);
|
|
|
|
return true;
|
|
}
|