diff options
Diffstat (limited to 'modules/gdnative/xr/xr_interface_gdnative.cpp')
| -rw-r--r-- | modules/gdnative/xr/xr_interface_gdnative.cpp | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/modules/gdnative/xr/xr_interface_gdnative.cpp b/modules/gdnative/xr/xr_interface_gdnative.cpp new file mode 100644 index 0000000000..0451945139 --- /dev/null +++ b/modules/gdnative/xr/xr_interface_gdnative.cpp @@ -0,0 +1,428 @@ +/*************************************************************************/ +/* 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_filter.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); + + InputFilter *input = InputFilter::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); + + InputFilter *input = InputFilter::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); + + InputFilter *input = InputFilter::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); + + InputFilter *input = InputFilter::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) { + InputFilter::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; +} +} |