virtualx-engine/modules/webxr/webxr_interface_js.h
reduz 455c06ecd4 Implement Vector4, Vector4i, Projection
Implement built-in classes Vector4, Vector4i and Projection.

* Two versions of Vector4 (float and integer).
* A Projection class, which is a 4x4 matrix specialized in projection types.

These types have been requested for a long time, but given they were very corner case they were not added before.
Because in Godot 4, reimplementing parts of the rendering engine is now possible, access to these types (heavily used by the rendering code) becomes a necessity.

**Q**: Why Projection and not Matrix4?
**A**: Godot does not use Matrix2, Matrix3, Matrix4x3, etc. naming convention because, within the engine, these types always have a *purpose*. As such, Godot names them: Transform2D, Transform3D or Basis. In this case, this 4x4 matrix is _always_ used as a _Projection_, hence the naming.
2022-07-23 14:00:01 +02:00

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4.7 KiB
C++

/*************************************************************************/
/* webxr_interface_js.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 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 WEBXR_INTERFACE_JS_H
#define WEBXR_INTERFACE_JS_H
#ifdef JAVASCRIPT_ENABLED
#include "webxr_interface.h"
/**
The WebXR interface is a VR/AR interface that can be used on the web.
*/
class WebXRInterfaceJS : public WebXRInterface {
GDCLASS(WebXRInterfaceJS, WebXRInterface);
private:
bool initialized;
Ref<XRPositionalTracker> head_tracker;
String session_mode;
String required_features;
String optional_features;
String requested_reference_space_types;
String reference_space_type;
// TODO maybe turn into a vector to support more then 2 controllers...
bool controllers_state[2];
Ref<XRPositionalTracker> controllers[2];
Size2 render_targetsize;
Transform3D _js_matrix_to_transform(float *p_js_matrix);
void _update_tracker(int p_controller_id);
public:
virtual void is_session_supported(const String &p_session_mode) override;
virtual void set_session_mode(String p_session_mode) override;
virtual String get_session_mode() const override;
virtual void set_required_features(String p_required_features) override;
virtual String get_required_features() const override;
virtual void set_optional_features(String p_optional_features) override;
virtual String get_optional_features() const override;
virtual void set_requested_reference_space_types(String p_requested_reference_space_types) override;
virtual String get_requested_reference_space_types() const override;
void _set_reference_space_type(String p_reference_space_type);
virtual String get_reference_space_type() const override;
virtual Ref<XRPositionalTracker> get_controller(int p_controller_id) const override;
virtual String get_visibility_state() const override;
virtual PackedVector3Array get_bounds_geometry() const override;
virtual StringName get_name() const override;
virtual uint32_t get_capabilities() const override;
virtual bool is_initialized() const override;
virtual bool initialize() override;
virtual void uninitialize() override;
virtual Size2 get_render_target_size() override;
virtual uint32_t get_view_count() override;
virtual Transform3D get_camera_transform() override;
virtual Transform3D get_transform_for_view(uint32_t p_view, const Transform3D &p_cam_transform) override;
virtual Projection get_projection_for_view(uint32_t p_view, double p_aspect, double p_z_near, double p_z_far) override;
virtual Vector<BlitToScreen> post_draw_viewport(RID p_render_target, const Rect2 &p_screen_rect) override;
virtual void process() override;
void _on_controller_changed();
WebXRInterfaceJS();
~WebXRInterfaceJS();
};
#endif // JAVASCRIPT_ENABLED
#endif // WEBXR_INTERFACE_JS_H