02ea99129e
This is a new singleton where camera sources such as webcams or cameras on a mobile phone can register themselves with the Server. Other parts of Godot can interact with this to obtain images from the camera as textures. This work includes additions to the Visual Server to use this functionality to present the camera image in the background. This is specifically targetted at AR applications.
433 lines
14 KiB
C++
433 lines
14 KiB
C++
/*************************************************************************/
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/* arvr_interface_gdnative.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) 2007-2019 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
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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 "arvr_interface_gdnative.h"
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#include "main/input_default.h"
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#include "servers/arvr/arvr_positional_tracker.h"
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#include "servers/visual/visual_server_globals.h"
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ARVRInterfaceGDNative::ARVRInterfaceGDNative() {
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// testing
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printf("Construct gdnative interface\n");
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// we won't have our data pointer until our library gets set
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data = NULL;
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interface = NULL;
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}
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ARVRInterfaceGDNative::~ARVRInterfaceGDNative() {
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printf("Destruct gdnative interface\n");
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if (is_initialized()) {
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uninitialize();
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};
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// cleanup after ourselves
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cleanup();
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}
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void ARVRInterfaceGDNative::cleanup() {
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if (interface != NULL) {
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interface->destructor(data);
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data = NULL;
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interface = NULL;
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}
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}
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void ARVRInterfaceGDNative::set_interface(const godot_arvr_interface_gdnative *p_interface) {
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// this should only be called once, just being paranoid..
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if (interface) {
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cleanup();
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}
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// bind to our interface
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interface = p_interface;
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// Now we do our constructing...
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data = interface->constructor((godot_object *)this);
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}
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StringName ARVRInterfaceGDNative::get_name() const {
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ERR_FAIL_COND_V(interface == NULL, StringName());
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godot_string result = interface->get_name(data);
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StringName name = *(String *)&result;
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godot_string_destroy(&result);
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return name;
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}
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int ARVRInterfaceGDNative::get_capabilities() const {
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int capabilities;
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ERR_FAIL_COND_V(interface == NULL, 0); // 0 = None
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capabilities = interface->get_capabilities(data);
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return capabilities;
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}
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bool ARVRInterfaceGDNative::get_anchor_detection_is_enabled() const {
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bool enabled;
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ERR_FAIL_COND_V(interface == NULL, false);
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enabled = interface->get_anchor_detection_is_enabled(data);
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return enabled;
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}
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void ARVRInterfaceGDNative::set_anchor_detection_is_enabled(bool p_enable) {
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ERR_FAIL_COND(interface == NULL);
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interface->set_anchor_detection_is_enabled(data, p_enable);
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}
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int ARVRInterfaceGDNative::get_camera_feed_id() {
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ERR_FAIL_COND_V(interface == NULL, 0);
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if ((interface->version.major > 1) || ((interface->version.major) == 1 && (interface->version.minor >= 1))) {
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return (unsigned int)interface->get_camera_feed_id(data);
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} else {
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return 0;
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}
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}
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bool ARVRInterfaceGDNative::is_stereo() {
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bool stereo;
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ERR_FAIL_COND_V(interface == NULL, false);
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stereo = interface->is_stereo(data);
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return stereo;
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}
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bool ARVRInterfaceGDNative::is_initialized() const {
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bool initialized;
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ERR_FAIL_COND_V(interface == NULL, false);
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initialized = interface->is_initialized(data);
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return initialized;
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}
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bool ARVRInterfaceGDNative::initialize() {
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bool initialized;
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ERR_FAIL_COND_V(interface == NULL, false);
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initialized = interface->initialize(data);
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if (initialized) {
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// if we successfully initialize our interface and we don't have a primary interface yet, this becomes our primary interface
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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if ((arvr_server != NULL) && (arvr_server->get_primary_interface() == NULL)) {
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arvr_server->set_primary_interface(this);
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};
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};
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return initialized;
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}
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void ARVRInterfaceGDNative::uninitialize() {
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ERR_FAIL_COND(interface == NULL);
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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if (arvr_server != NULL) {
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// Whatever happens, make sure this is no longer our primary interface
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arvr_server->clear_primary_interface_if(this);
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}
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interface->uninitialize(data);
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}
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Size2 ARVRInterfaceGDNative::get_render_targetsize() {
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ERR_FAIL_COND_V(interface == NULL, Size2());
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godot_vector2 result = interface->get_render_targetsize(data);
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Vector2 *vec = (Vector2 *)&result;
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return *vec;
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}
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Transform ARVRInterfaceGDNative::get_transform_for_eye(ARVRInterface::Eyes p_eye, const Transform &p_cam_transform) {
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Transform *ret;
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ERR_FAIL_COND_V(interface == NULL, Transform());
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godot_transform t = interface->get_transform_for_eye(data, (int)p_eye, (godot_transform *)&p_cam_transform);
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ret = (Transform *)&t;
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return *ret;
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}
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CameraMatrix ARVRInterfaceGDNative::get_projection_for_eye(ARVRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far) {
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CameraMatrix cm;
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ERR_FAIL_COND_V(interface == NULL, CameraMatrix());
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interface->fill_projection_for_eye(data, (godot_real *)cm.matrix, (godot_int)p_eye, p_aspect, p_z_near, p_z_far);
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return cm;
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}
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unsigned int ARVRInterfaceGDNative::get_external_texture_for_eye(ARVRInterface::Eyes p_eye) {
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ERR_FAIL_COND_V(interface == NULL, 0);
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if ((interface->version.major > 1) || ((interface->version.major) == 1 && (interface->version.minor >= 1))) {
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return (unsigned int)interface->get_external_texture_for_eye(data, (godot_int)p_eye);
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} else {
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return 0;
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}
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}
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void ARVRInterfaceGDNative::commit_for_eye(ARVRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) {
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ERR_FAIL_COND(interface == NULL);
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interface->commit_for_eye(data, (godot_int)p_eye, (godot_rid *)&p_render_target, (godot_rect2 *)&p_screen_rect);
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}
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void ARVRInterfaceGDNative::process() {
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ERR_FAIL_COND(interface == NULL);
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interface->process(data);
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}
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void ARVRInterfaceGDNative::notification(int p_what) {
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ERR_FAIL_COND(interface == NULL);
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// this is only available in interfaces that implement 1.1 or later
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if ((interface->version.major > 1) || ((interface->version.major == 1) && (interface->version.minor > 0))) {
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interface->notification(data, p_what);
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////
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// some helper callbacks
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extern "C" {
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void GDAPI godot_arvr_register_interface(const godot_arvr_interface_gdnative *p_interface) {
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// If our major version is 0 or bigger then 10, we're likely looking at our constructor pointer from an older plugin
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ERR_EXPLAINC("GDNative ARVR interfaces build for Godot 3.0 are not supported");
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ERR_FAIL_COND((p_interface->version.major == 0) || (p_interface->version.major > 10));
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Ref<ARVRInterfaceGDNative> new_interface;
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new_interface.instance();
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new_interface->set_interface((const godot_arvr_interface_gdnative *)p_interface);
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ARVRServer::get_singleton()->add_interface(new_interface);
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}
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godot_real GDAPI godot_arvr_get_worldscale() {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL_V(arvr_server, 1.0);
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return arvr_server->get_world_scale();
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}
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godot_transform GDAPI godot_arvr_get_reference_frame() {
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godot_transform reference_frame;
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Transform *reference_frame_ptr = (Transform *)&reference_frame;
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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if (arvr_server != NULL) {
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*reference_frame_ptr = arvr_server->get_reference_frame();
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} else {
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godot_transform_new_identity(&reference_frame);
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}
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return reference_frame;
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}
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void GDAPI godot_arvr_blit(godot_int p_eye, godot_rid *p_render_target, godot_rect2 *p_rect) {
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// 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
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ARVRInterface::Eyes eye = (ARVRInterface::Eyes)p_eye;
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RID *render_target = (RID *)p_render_target;
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Rect2 screen_rect = *(Rect2 *)p_rect;
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if (eye == ARVRInterface::EYE_LEFT) {
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screen_rect.size.x /= 2.0;
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} else if (p_eye == ARVRInterface::EYE_RIGHT) {
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screen_rect.size.x /= 2.0;
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screen_rect.position.x += screen_rect.size.x;
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}
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VSG::rasterizer->set_current_render_target(RID());
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VSG::rasterizer->blit_render_target_to_screen(*render_target, screen_rect, 0);
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}
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godot_int GDAPI godot_arvr_get_texid(godot_rid *p_render_target) {
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// In order to send off our textures to display on our hardware we need the opengl texture ID instead of the render target RID
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// This is a handy function to expose that.
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RID *render_target = (RID *)p_render_target;
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RID eye_texture = VSG::storage->render_target_get_texture(*render_target);
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uint32_t texid = VS::get_singleton()->texture_get_texid(eye_texture);
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return texid;
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}
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godot_int GDAPI godot_arvr_add_controller(char *p_device_name, godot_int p_hand, godot_bool p_tracks_orientation, godot_bool p_tracks_position) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL_V(arvr_server, 0);
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InputDefault *input = (InputDefault *)Input::get_singleton();
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ERR_FAIL_NULL_V(input, 0);
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ARVRPositionalTracker *new_tracker = memnew(ARVRPositionalTracker);
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new_tracker->set_name(p_device_name);
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new_tracker->set_type(ARVRServer::TRACKER_CONTROLLER);
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if (p_hand == 1) {
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new_tracker->set_hand(ARVRPositionalTracker::TRACKER_LEFT_HAND);
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} else if (p_hand == 2) {
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new_tracker->set_hand(ARVRPositionalTracker::TRACKER_RIGHT_HAND);
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}
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// also register as joystick...
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int joyid = input->get_unused_joy_id();
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if (joyid != -1) {
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new_tracker->set_joy_id(joyid);
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input->joy_connection_changed(joyid, true, p_device_name, "");
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}
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if (p_tracks_orientation) {
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Basis orientation;
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new_tracker->set_orientation(orientation);
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}
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if (p_tracks_position) {
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Vector3 position;
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new_tracker->set_position(position);
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}
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// add our tracker to our server and remember its pointer
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arvr_server->add_tracker(new_tracker);
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// note, this ID is only unique within controllers!
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return new_tracker->get_tracker_id();
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}
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void GDAPI godot_arvr_remove_controller(godot_int p_controller_id) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL(arvr_server);
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InputDefault *input = (InputDefault *)Input::get_singleton();
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ERR_FAIL_NULL(input);
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ARVRPositionalTracker *remove_tracker = arvr_server->find_by_type_and_id(ARVRServer::TRACKER_CONTROLLER, p_controller_id);
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if (remove_tracker != NULL) {
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// unset our joystick if applicable
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int joyid = remove_tracker->get_joy_id();
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if (joyid != -1) {
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input->joy_connection_changed(joyid, false, "", "");
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remove_tracker->set_joy_id(-1);
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}
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// remove our tracker from our server
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arvr_server->remove_tracker(remove_tracker);
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memdelete(remove_tracker);
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}
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}
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void GDAPI godot_arvr_set_controller_transform(godot_int p_controller_id, godot_transform *p_transform, godot_bool p_tracks_orientation, godot_bool p_tracks_position) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL(arvr_server);
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ARVRPositionalTracker *tracker = arvr_server->find_by_type_and_id(ARVRServer::TRACKER_CONTROLLER, p_controller_id);
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if (tracker != NULL) {
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Transform *transform = (Transform *)p_transform;
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if (p_tracks_orientation) {
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tracker->set_orientation(transform->basis);
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}
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if (p_tracks_position) {
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tracker->set_rw_position(transform->origin);
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}
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}
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}
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void GDAPI godot_arvr_set_controller_button(godot_int p_controller_id, godot_int p_button, godot_bool p_is_pressed) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL(arvr_server);
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InputDefault *input = (InputDefault *)Input::get_singleton();
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ERR_FAIL_NULL(input);
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ARVRPositionalTracker *tracker = arvr_server->find_by_type_and_id(ARVRServer::TRACKER_CONTROLLER, p_controller_id);
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if (tracker != NULL) {
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int joyid = tracker->get_joy_id();
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if (joyid != -1) {
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input->joy_button(joyid, p_button, p_is_pressed);
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}
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}
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}
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void GDAPI godot_arvr_set_controller_axis(godot_int p_controller_id, godot_int p_axis, godot_real p_value, godot_bool p_can_be_negative) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL(arvr_server);
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InputDefault *input = (InputDefault *)Input::get_singleton();
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ERR_FAIL_NULL(input);
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ARVRPositionalTracker *tracker = arvr_server->find_by_type_and_id(ARVRServer::TRACKER_CONTROLLER, p_controller_id);
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if (tracker != NULL) {
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int joyid = tracker->get_joy_id();
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if (joyid != -1) {
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InputDefault::JoyAxis jx;
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jx.min = p_can_be_negative ? -1 : 0;
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jx.value = p_value;
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input->joy_axis(joyid, p_axis, jx);
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}
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}
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}
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godot_real GDAPI godot_arvr_get_controller_rumble(godot_int p_controller_id) {
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ARVRServer *arvr_server = ARVRServer::get_singleton();
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ERR_FAIL_NULL_V(arvr_server, 0.0);
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ARVRPositionalTracker *tracker = arvr_server->find_by_type_and_id(ARVRServer::TRACKER_CONTROLLER, p_controller_id);
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if (tracker != NULL) {
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return tracker->get_rumble();
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}
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return 0.0;
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}
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}
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