/*************************************************************************/ /* xr_interface_gdnative.cpp */ /*************************************************************************/ /* This file is part of: */ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ /* */ /* 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 "xr_interface_gdnative.h" #include "core/input/input.h" #include "servers/rendering/rendering_server_globals.h" #include "servers/xr/xr_positional_tracker.h" void XRInterfaceGDNative::_bind_methods() { ADD_PROPERTY_DEFAULT("interface_is_initialized", false); ADD_PROPERTY_DEFAULT("ar_is_anchor_detection_enabled", false); } XRInterfaceGDNative::XRInterfaceGDNative() { print_verbose("Construct gdnative interface\n"); // we won't have our data pointer until our library gets set data = nullptr; interface = nullptr; } XRInterfaceGDNative::~XRInterfaceGDNative() { print_verbose("Destruct gdnative interface\n"); if (interface != nullptr && is_initialized()) { uninitialize(); }; // cleanup after ourselves cleanup(); } void XRInterfaceGDNative::cleanup() { if (interface != nullptr) { interface->destructor(data); data = nullptr; interface = nullptr; } } void XRInterfaceGDNative::set_interface(const godot_xr_interface_gdnative *p_interface) { // this should only be called once, just being paranoid.. if (interface) { cleanup(); } // bind to our interface interface = p_interface; // Now we do our constructing... data = interface->constructor((godot_object *)this); } StringName XRInterfaceGDNative::get_name() const { ERR_FAIL_COND_V(interface == nullptr, StringName()); godot_string result = interface->get_name(data); StringName name = *(String *)&result; godot_string_destroy(&result); return name; } int XRInterfaceGDNative::get_capabilities() const { int capabilities; ERR_FAIL_COND_V(interface == nullptr, 0); // 0 = None capabilities = interface->get_capabilities(data); return capabilities; } bool XRInterfaceGDNative::get_anchor_detection_is_enabled() const { ERR_FAIL_COND_V(interface == nullptr, false); return interface->get_anchor_detection_is_enabled(data); } void XRInterfaceGDNative::set_anchor_detection_is_enabled(bool p_enable) { ERR_FAIL_COND(interface == nullptr); interface->set_anchor_detection_is_enabled(data, p_enable); } int XRInterfaceGDNative::get_camera_feed_id() { ERR_FAIL_COND_V(interface == nullptr, 0); return (unsigned int)interface->get_camera_feed_id(data); } bool XRInterfaceGDNative::is_stereo() { bool stereo; ERR_FAIL_COND_V(interface == nullptr, false); stereo = interface->is_stereo(data); return stereo; } bool XRInterfaceGDNative::is_initialized() const { ERR_FAIL_COND_V(interface == nullptr, false); return interface->is_initialized(data); } bool XRInterfaceGDNative::initialize() { ERR_FAIL_COND_V(interface == nullptr, false); bool initialized = interface->initialize(data); if (initialized) { // if we successfully initialize our interface and we don't have a primary interface yet, this becomes our primary interface XRServer *xr_server = XRServer::get_singleton(); if ((xr_server != nullptr) && (xr_server->get_primary_interface() == nullptr)) { xr_server->set_primary_interface(this); }; }; return initialized; } void XRInterfaceGDNative::uninitialize() { ERR_FAIL_COND(interface == nullptr); XRServer *xr_server = XRServer::get_singleton(); if (xr_server != nullptr) { // Whatever happens, make sure this is no longer our primary interface xr_server->clear_primary_interface_if(this); } interface->uninitialize(data); } Size2 XRInterfaceGDNative::get_render_targetsize() { ERR_FAIL_COND_V(interface == nullptr, Size2()); godot_vector2 result = interface->get_render_targetsize(data); Vector2 *vec = (Vector2 *)&result; return *vec; } Transform XRInterfaceGDNative::get_transform_for_eye(XRInterface::Eyes p_eye, const Transform &p_cam_transform) { Transform *ret; ERR_FAIL_COND_V(interface == nullptr, Transform()); godot_transform t = interface->get_transform_for_eye(data, (int)p_eye, (godot_transform *)&p_cam_transform); ret = (Transform *)&t; return *ret; } CameraMatrix XRInterfaceGDNative::get_projection_for_eye(XRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far) { CameraMatrix cm; ERR_FAIL_COND_V(interface == nullptr, CameraMatrix()); interface->fill_projection_for_eye(data, (godot_real *)cm.matrix, (godot_int)p_eye, p_aspect, p_z_near, p_z_far); return cm; } unsigned int XRInterfaceGDNative::get_external_texture_for_eye(XRInterface::Eyes p_eye) { ERR_FAIL_COND_V(interface == nullptr, 0); return (unsigned int)interface->get_external_texture_for_eye(data, (godot_int)p_eye); } void XRInterfaceGDNative::commit_for_eye(XRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) { ERR_FAIL_COND(interface == nullptr); interface->commit_for_eye(data, (godot_int)p_eye, (godot_rid *)&p_render_target, (godot_rect2 *)&p_screen_rect); } void XRInterfaceGDNative::process() { ERR_FAIL_COND(interface == nullptr); interface->process(data); } void XRInterfaceGDNative::notification(int p_what) { ERR_FAIL_COND(interface == nullptr); interface->notification(data, p_what); } ///////////////////////////////////////////////////////////////////////////////////// // some helper callbacks extern "C" { void GDAPI godot_xr_register_interface(const godot_xr_interface_gdnative *p_interface) { // Must be on a version 4 plugin ERR_FAIL_COND_MSG(p_interface->version.major < 4, "GDNative XR interfaces build for Godot 3.x are not supported."); Ref<XRInterfaceGDNative> new_interface; new_interface.instance(); new_interface->set_interface((const godot_xr_interface_gdnative *)p_interface); XRServer::get_singleton()->add_interface(new_interface); } godot_real GDAPI godot_xr_get_worldscale() { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL_V(xr_server, 1.0); return xr_server->get_world_scale(); } godot_transform GDAPI godot_xr_get_reference_frame() { godot_transform reference_frame; Transform *reference_frame_ptr = (Transform *)&reference_frame; XRServer *xr_server = XRServer::get_singleton(); if (xr_server != nullptr) { *reference_frame_ptr = xr_server->get_reference_frame(); } else { godot_transform_new_identity(&reference_frame); } return reference_frame; } void GDAPI godot_xr_blit(godot_int p_eye, godot_rid *p_render_target, godot_rect2 *p_rect) { // blits out our texture as is, handy for preview display of one of the eyes that is already rendered with lens distortion on an external HMD XRInterface::Eyes eye = (XRInterface::Eyes)p_eye; #if 0 RID *render_target = (RID *)p_render_target; #endif Rect2 screen_rect = *(Rect2 *)p_rect; if (eye == XRInterface::EYE_LEFT) { screen_rect.size.x /= 2.0; } else if (p_eye == XRInterface::EYE_RIGHT) { screen_rect.size.x /= 2.0; screen_rect.position.x += screen_rect.size.x; } #ifndef _MSC_VER #warning this needs to be redone #endif #if 0 RSG::rasterizer->blit_render_target_to_screen(*render_target, screen_rect, 0); #endif } godot_int GDAPI godot_xr_get_texid(godot_rid *p_render_target) { // In order to send off our textures to display on our hardware we need the opengl texture ID instead of the render target RID // This is a handy function to expose that. #if 0 RID *render_target = (RID *)p_render_target; RID eye_texture = RSG::storage->render_target_get_texture(*render_target); #endif #ifndef _MSC_VER #warning need to obtain this ID again #endif uint32_t texid = 0; //RS::get_singleton()->texture_get_texid(eye_texture); return texid; } godot_int GDAPI godot_xr_add_controller(char *p_device_name, godot_int p_hand, godot_bool p_tracks_orientation, godot_bool p_tracks_position) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL_V(xr_server, 0); Input *input = Input::get_singleton(); ERR_FAIL_NULL_V(input, 0); XRPositionalTracker *new_tracker = memnew(XRPositionalTracker); new_tracker->set_name(p_device_name); new_tracker->set_type(XRServer::TRACKER_CONTROLLER); if (p_hand == 1) { new_tracker->set_hand(XRPositionalTracker::TRACKER_LEFT_HAND); } else if (p_hand == 2) { new_tracker->set_hand(XRPositionalTracker::TRACKER_RIGHT_HAND); } // also register as joystick... int joyid = input->get_unused_joy_id(); if (joyid != -1) { new_tracker->set_joy_id(joyid); input->joy_connection_changed(joyid, true, p_device_name, ""); } if (p_tracks_orientation) { Basis orientation; new_tracker->set_orientation(orientation); } if (p_tracks_position) { Vector3 position; new_tracker->set_position(position); } // add our tracker to our server and remember its pointer xr_server->add_tracker(new_tracker); // note, this ID is only unique within controllers! return new_tracker->get_tracker_id(); } void GDAPI godot_xr_remove_controller(godot_int p_controller_id) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL(xr_server); Input *input = Input::get_singleton(); ERR_FAIL_NULL(input); XRPositionalTracker *remove_tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id); if (remove_tracker != nullptr) { // unset our joystick if applicable int joyid = remove_tracker->get_joy_id(); if (joyid != -1) { input->joy_connection_changed(joyid, false, "", ""); remove_tracker->set_joy_id(-1); } // remove our tracker from our server xr_server->remove_tracker(remove_tracker); memdelete(remove_tracker); } } void GDAPI godot_xr_set_controller_transform(godot_int p_controller_id, godot_transform *p_transform, godot_bool p_tracks_orientation, godot_bool p_tracks_position) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL(xr_server); XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id); if (tracker != nullptr) { Transform *transform = (Transform *)p_transform; if (p_tracks_orientation) { tracker->set_orientation(transform->basis); } if (p_tracks_position) { tracker->set_rw_position(transform->origin); } } } void GDAPI godot_xr_set_controller_button(godot_int p_controller_id, godot_int p_button, godot_bool p_is_pressed) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL(xr_server); Input *input = Input::get_singleton(); ERR_FAIL_NULL(input); XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id); if (tracker != nullptr) { int joyid = tracker->get_joy_id(); if (joyid != -1) { input->joy_button(joyid, p_button, p_is_pressed); } } } void GDAPI godot_xr_set_controller_axis(godot_int p_controller_id, godot_int p_axis, godot_real p_value, godot_bool p_can_be_negative) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL(xr_server); Input *input = Input::get_singleton(); ERR_FAIL_NULL(input); XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id); if (tracker != nullptr) { int joyid = tracker->get_joy_id(); if (joyid != -1) { Input::JoyAxis jx; jx.min = p_can_be_negative ? -1 : 0; jx.value = p_value; input->joy_axis(joyid, p_axis, jx); } } } godot_real GDAPI godot_xr_get_controller_rumble(godot_int p_controller_id) { XRServer *xr_server = XRServer::get_singleton(); ERR_FAIL_NULL_V(xr_server, 0.0); XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id); if (tracker != nullptr) { return tracker->get_rumble(); } return 0.0; } }