Add WebXR support (for Godot 3.2)

modules/webxr/SCsub

@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+
+Import("env")
+Import("env_modules")
+
+if env["platform"] == "javascript":
+    env.AddJSLibraries(["native/library_godot_webxr.js"])
+    env.AddJSExterns(["native/webxr.externs.js"])
+
+env_webxr = env_modules.Clone()
+env_webxr.add_source_files(env.modules_sources, "*.cpp")

modules/webxr/config.py

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+def can_build(env, platform):
+    return True
+
+
+def configure(env):
+    pass
+
+
+def get_doc_classes():
+    return ["WebXRInterface"]
+
+
+def get_doc_path():
+    return "doc_classes"

modules/webxr/godot_webxr.h

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+/*************************************************************************/
+/*  godot_webxr.h                                                        */
+/*************************************************************************/
+/*                       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.                */
+/*************************************************************************/
+
+#ifndef GODOT_WEBXR_H
+#define GODOT_WEBXR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "stddef.h"
+
+typedef void (*GodotWebXRSupportedCallback)(char *p_session_mode, int p_supported);
+typedef void (*GodotWebXRStartedCallback)(char *p_reference_space_type);
+typedef void (*GodotWebXREndedCallback)();
+typedef void (*GodotWebXRFailedCallback)(char *p_message);
+typedef void (*GodotWebXRControllerCallback)();
+typedef void (*GodotWebXRInputEventCallback)(char *p_signal_name, int p_controller_id);
+typedef void (*GodotWebXRSimpleEventCallback)(char *p_signal_name);
+
+extern int godot_webxr_is_supported();
+extern void godot_webxr_is_session_supported(const char *p_session_mode, GodotWebXRSupportedCallback p_callback);
+
+extern void godot_webxr_initialize(
+		const char *p_session_mode,
+		const char *p_required_features,
+		const char *p_optional_features,
+		const char *p_requested_reference_space_types,
+		GodotWebXRStartedCallback p_on_session_started,
+		GodotWebXREndedCallback p_on_session_ended,
+		GodotWebXRFailedCallback p_on_session_failed,
+		GodotWebXRControllerCallback p_on_controller_changed,
+		GodotWebXRInputEventCallback p_on_input_event,
+		GodotWebXRSimpleEventCallback p_on_simple_event);
+extern void godot_webxr_uninitialize();
+
+extern int *godot_webxr_get_render_targetsize();
+extern float *godot_webxr_get_transform_for_eye(int p_eye);
+extern float *godot_webxr_get_projection_for_eye(int p_eye);
+extern int godot_webxr_get_external_texture_for_eye(int p_eye);
+extern void godot_webxr_commit_for_eye(int p_eye);
+
+extern void godot_webxr_sample_controller_data();
+extern int godot_webxr_get_controller_count();
+extern int godot_webxr_is_controller_connected(int p_controller);
+extern float *godot_webxr_get_controller_transform(int p_controller);
+extern int *godot_webxr_get_controller_buttons(int p_controller);
+extern int *godot_webxr_get_controller_axes(int p_controller);
+
+extern char *godot_webxr_get_visibility_state();
+extern int *godot_webxr_get_bounds_geometry();
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GODOT_WEBXR_H */