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/*************************************************************************/
/* arkit_interface.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2021 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. */
/*************************************************************************/
#ifndef ARKIT_INTERFACE_H
#define ARKIT_INTERFACE_H
#include "servers/camera/camera_feed.h"
#include "servers/xr/xr_interface.h"
#include "servers/xr/xr_positional_tracker.h"
/**
@author Bastiaan Olij <mux213@gmail.com>
ARKit interface between iPhone and Godot
*/
// forward declaration for some needed objects
class ARKitShader;
#ifdef __OBJC__
typedef ARAnchor GodotARAnchor;
#else
typedef void GodotARAnchor;
#endif
class ARKitInterface : public XRInterface {
GDCLASS(ARKitInterface, XRInterface);
private:
bool initialized;
bool session_was_started;
bool plane_detection_is_enabled;
bool light_estimation_is_enabled;
real_t ambient_intensity;
real_t ambient_color_temperature;
Transform transform;
CameraMatrix projection;
float eye_height, z_near, z_far;
Ref<CameraFeed> feed;
size_t image_width[2];
size_t image_height[2];
Vector<uint8_t> img_data[2];
struct anchor_map {
XRPositionalTracker *tracker;
unsigned char uuid[16];
};
///@TODO should use memory map object from Godot?
unsigned int num_anchors;
unsigned int max_anchors;
anchor_map *anchors;
XRPositionalTracker *get_anchor_for_uuid(const unsigned char *p_uuid);
void remove_anchor_for_uuid(const unsigned char *p_uuid);
void remove_all_anchors();
protected:
static void _bind_methods();
public:
void start_session();
void stop_session();
bool get_anchor_detection_is_enabled() const override;
void set_anchor_detection_is_enabled(bool p_enable) override;
virtual int get_camera_feed_id() override;
bool get_light_estimation_is_enabled() const;
void set_light_estimation_is_enabled(bool p_enable);
real_t get_ambient_intensity() const;
real_t get_ambient_color_temperature() const;
/* while Godot has its own raycast logic this takes ARKits camera into account and hits on any ARAnchor */
Array raycast(Vector2 p_screen_coord);
virtual void notification(int p_what) override;
virtual StringName get_name() const override;
virtual int get_capabilities() const override;
virtual bool is_initialized() const override;
virtual bool initialize() override;
virtual void uninitialize() override;
virtual Size2 get_render_targetsize() override;
virtual bool is_stereo() override;
virtual Transform get_transform_for_eye(XRInterface::Eyes p_eye, const Transform &p_cam_transform) override;
virtual CameraMatrix get_projection_for_eye(XRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far) override;
virtual void commit_for_eye(XRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) override;
virtual void process() override;
// called by delegate (void * because C++ and Obj-C don't always mix, should really change all platform/iphone/*.cpp files to .mm)
void _add_or_update_anchor(GodotARAnchor *p_anchor);
void _remove_anchor(GodotARAnchor *p_anchor);
ARKitInterface();
~ARKitInterface();
};
#endif /* !ARKIT_INTERFACE_H */
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