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+/*************************************************************************/
+/* library_godot_webxr.js */
+/*************************************************************************/
+/* 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. */
+/*************************************************************************/
+const GodotWebXR = {
+ $GodotWebXR__deps: ['$Browser', '$GL', '$GodotRuntime'],
+ $GodotWebXR: {
+ gl: null,
+
+ texture_ids: [null, null],
+ textures: [null, null],
+
+ session: null,
+ space: null,
+ frame: null,
+ pose: null,
+
+ // Monkey-patch the requestAnimationFrame() used by Emscripten for the main
+ // loop, so that we can swap it out for XRSession.requestAnimationFrame()
+ // when an XR session is started.
+ orig_requestAnimationFrame: null,
+ requestAnimationFrame: (callback) => {
+ if (GodotWebXR.session && GodotWebXR.space) {
+ const onFrame = function (time, frame) {
+ GodotWebXR.frame = frame;
+ GodotWebXR.pose = frame.getViewerPose(GodotWebXR.space);
+ callback(time);
+ GodotWebXR.frame = null;
+ GodotWebXR.pose = null;
+ };
+ GodotWebXR.session.requestAnimationFrame(onFrame);
+ } else {
+ GodotWebXR.orig_requestAnimationFrame(callback);
+ }
+ },
+ monkeyPatchRequestAnimationFrame: (enable) => {
+ if (GodotWebXR.orig_requestAnimationFrame === null) {
+ GodotWebXR.orig_requestAnimationFrame = Browser.requestAnimationFrame;
+ }
+ Browser.requestAnimationFrame = enable
+ ? GodotWebXR.requestAnimationFrame : GodotWebXR.orig_requestAnimationFrame;
+ },
+ pauseResumeMainLoop: () => {
+ // Once both GodotWebXR.session and GodotWebXR.space are set or
+ // unset, our monkey-patched requestAnimationFrame() should be
+ // enabled or disabled. When using the WebXR API Emulator, this
+ // gets picked up automatically, however, in the Oculus Browser
+ // on the Quest, we need to pause and resume the main loop.
+ Browser.pauseAsyncCallbacks();
+ Browser.mainLoop.pause();
+ window.setTimeout(function () {
+ Browser.resumeAsyncCallbacks();
+ Browser.mainLoop.resume();
+ }, 0);
+ },
+
+ // Some custom WebGL code for blitting our eye textures to the
+ // framebuffer we get from WebXR.
+ shaderProgram: null,
+ programInfo: null,
+ buffer: null,
+ // Vertex shader source.
+ vsSource: `
+ const vec2 scale = vec2(0.5, 0.5);
+ attribute vec4 aVertexPosition;
+
+ varying highp vec2 vTextureCoord;
+
+ void main () {
+ gl_Position = aVertexPosition;
+ vTextureCoord = aVertexPosition.xy * scale + scale;
+ }
+ `,
+ // Fragment shader source.
+ fsSource: `
+ varying highp vec2 vTextureCoord;
+
+ uniform sampler2D uSampler;
+
+ void main() {
+ gl_FragColor = texture2D(uSampler, vTextureCoord);
+ }
+ `,
+
+ initShaderProgram: (gl, vsSource, fsSource) => {
+ const vertexShader = GodotWebXR.loadShader(gl, gl.VERTEX_SHADER, vsSource);
+ const fragmentShader = GodotWebXR.loadShader(gl, gl.FRAGMENT_SHADER, fsSource);
+
+ const shaderProgram = gl.createProgram();
+ gl.attachShader(shaderProgram, vertexShader);
+ gl.attachShader(shaderProgram, fragmentShader);
+ gl.linkProgram(shaderProgram);
+
+ if (!gl.getProgramParameter(shaderProgram, gl.LINK_STATUS)) {
+ GodotRuntime.error(`Unable to initialize the shader program: ${gl.getProgramInfoLog(shaderProgram)}`);
+ return null;
+ }
+
+ return shaderProgram;
+ },
+ loadShader: (gl, type, source) => {
+ const shader = gl.createShader(type);
+ gl.shaderSource(shader, source);
+ gl.compileShader(shader);
+
+ if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
+ GodotRuntime.error(`An error occurred compiling the shader: ${gl.getShaderInfoLog(shader)}`);
+ gl.deleteShader(shader);
+ return null;
+ }
+
+ return shader;
+ },
+ initBuffer: (gl) => {
+ const positionBuffer = gl.createBuffer();
+ gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
+ const positions = [
+ -1.0, -1.0,
+ 1.0, -1.0,
+ -1.0, 1.0,
+ 1.0, 1.0,
+ ];
+ gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);
+ return positionBuffer;
+ },
+ blitTexture: (gl, texture) => {
+ if (GodotWebXR.shaderProgram === null) {
+ GodotWebXR.shaderProgram = GodotWebXR.initShaderProgram(gl, GodotWebXR.vsSource, GodotWebXR.fsSource);
+ GodotWebXR.programInfo = {
+ program: GodotWebXR.shaderProgram,
+ attribLocations: {
+ vertexPosition: gl.getAttribLocation(GodotWebXR.shaderProgram, 'aVertexPosition'),
+ },
+ uniformLocations: {
+ uSampler: gl.getUniformLocation(GodotWebXR.shaderProgram, 'uSampler'),
+ },
+ };
+ GodotWebXR.buffer = GodotWebXR.initBuffer(gl);
+ }
+
+ const orig_program = gl.getParameter(gl.CURRENT_PROGRAM);
+ gl.useProgram(GodotWebXR.shaderProgram);
+
+ gl.bindBuffer(gl.ARRAY_BUFFER, GodotWebXR.buffer);
+ gl.vertexAttribPointer(GodotWebXR.programInfo.attribLocations.vertexPosition, 2, gl.FLOAT, false, 0, 0);
+ gl.enableVertexAttribArray(GodotWebXR.programInfo.attribLocations.vertexPosition);
+
+ gl.activeTexture(gl.TEXTURE0);
+ gl.bindTexture(gl.TEXTURE_2D, texture);
+ gl.uniform1i(GodotWebXR.programInfo.uniformLocations.uSampler, 0);
+
+ gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);
+
+ // Restore state.
+ gl.bindTexture(gl.TEXTURE_2D, null);
+ gl.disableVertexAttribArray(GodotWebXR.programInfo.attribLocations.vertexPosition);
+ gl.bindBuffer(gl.ARRAY_BUFFER, null);
+ gl.useProgram(orig_program);
+ },
+
+ // Holds the controllers list between function calls.
+ controllers: [],
+
+ // Updates controllers array, where the left hand (or sole tracker) is
+ // the first element, and the right hand is the second element, and any
+ // others placed at the 3rd position and up.
+ sampleControllers: () => {
+ if (!GodotWebXR.session || !GodotWebXR.frame) {
+ return;
+ }
+
+ let other_index = 2;
+ const controllers = [];
+ GodotWebXR.session.inputSources.forEach((input_source) => {
+ if (input_source.targetRayMode === 'tracked-pointer') {
+ if (input_source.handedness === 'right') {
+ controllers[1] = input_source;
+ } else if (input_source.handedness === 'left' || !controllers[0]) {
+ controllers[0] = input_source;
+ }
+ } else {
+ controllers[other_index++] = input_source;
+ }
+ });
+ GodotWebXR.controllers = controllers;
+ },
+
+ getControllerId: (input_source) => GodotWebXR.controllers.indexOf(input_source),
+ },
+
+ godot_webxr_is_supported__proxy: 'sync',
+ godot_webxr_is_supported__sig: 'i',
+ godot_webxr_is_supported: function () {
+ return !!navigator.xr;
+ },
+
+ godot_webxr_is_session_supported__proxy: 'sync',
+ godot_webxr_is_session_supported__sig: 'vii',
+ godot_webxr_is_session_supported: function (p_session_mode, p_callback) {
+ const session_mode = GodotRuntime.parseString(p_session_mode);
+ const cb = GodotRuntime.get_func(p_callback);
+ if (navigator.xr) {
+ navigator.xr.isSessionSupported(session_mode).then(function (supported) {
+ const c_str = GodotRuntime.allocString(session_mode);
+ cb(c_str, supported ? 1 : 0);
+ GodotRuntime.free(c_str);
+ });
+ } else {
+ const c_str = GodotRuntime.allocString(session_mode);
+ cb(c_str, 0);
+ GodotRuntime.free(c_str);
+ }
+ },
+
+ godot_webxr_initialize__deps: ['emscripten_webgl_get_current_context'],
+ godot_webxr_initialize__proxy: 'sync',
+ godot_webxr_initialize__sig: 'viiiiiiiiii',
+ godot_webxr_initialize: function (p_session_mode, p_required_features, p_optional_features, p_requested_reference_spaces, p_on_session_started, p_on_session_ended, p_on_session_failed, p_on_controller_changed, p_on_input_event, p_on_simple_event) {
+ GodotWebXR.monkeyPatchRequestAnimationFrame(true);
+
+ const session_mode = GodotRuntime.parseString(p_session_mode);
+ const required_features = GodotRuntime.parseString(p_required_features).split(',').map((s) => s.trim()).filter((s) => s !== '');
+ const optional_features = GodotRuntime.parseString(p_optional_features).split(',').map((s) => s.trim()).filter((s) => s !== '');
+ const requested_reference_space_types = GodotRuntime.parseString(p_requested_reference_spaces).split(',').map((s) => s.trim());
+ const onstarted = GodotRuntime.get_func(p_on_session_started);
+ const onended = GodotRuntime.get_func(p_on_session_ended);
+ const onfailed = GodotRuntime.get_func(p_on_session_failed);
+ const oncontroller = GodotRuntime.get_func(p_on_controller_changed);
+ const oninputevent = GodotRuntime.get_func(p_on_input_event);
+ const onsimpleevent = GodotRuntime.get_func(p_on_simple_event);
+
+ const session_init = {};
+ if (required_features.length > 0) {
+ session_init['requiredFeatures'] = required_features;
+ }
+ if (optional_features.length > 0) {
+ session_init['optionalFeatures'] = optional_features;
+ }
+
+ navigator.xr.requestSession(session_mode, session_init).then(function (session) {
+ GodotWebXR.session = session;
+
+ session.addEventListener('end', function (evt) {
+ onended();
+ });
+
+ session.addEventListener('inputsourceschange', function (evt) {
+ let controller_changed = false;
+ [evt.added, evt.removed].forEach((lst) => {
+ lst.forEach((input_source) => {
+ if (input_source.targetRayMode === 'tracked-pointer') {
+ controller_changed = true;
+ }
+ });
+ });
+ if (controller_changed) {
+ oncontroller();
+ }
+ });
+
+ ['selectstart', 'select', 'selectend', 'squeezestart', 'squeeze', 'squeezeend'].forEach((input_event) => {
+ session.addEventListener(input_event, function (evt) {
+ const c_str = GodotRuntime.allocString(input_event);
+ oninputevent(c_str, GodotWebXR.getControllerId(evt.inputSource));
+ GodotRuntime.free(c_str);
+ });
+ });
+
+ session.addEventListener('visibilitychange', function (evt) {
+ const c_str = GodotRuntime.allocString('visibility_state_changed');
+ onsimpleevent(c_str);
+ GodotRuntime.free(c_str);
+ });
+
+ const gl_context_handle = _emscripten_webgl_get_current_context(); // eslint-disable-line no-undef
+ const gl = GL.getContext(gl_context_handle).GLctx;
+ GodotWebXR.gl = gl;
+
+ gl.makeXRCompatible().then(function () {
+ session.updateRenderState({
+ baseLayer: new XRWebGLLayer(session, gl),
+ });
+
+ function onReferenceSpaceSuccess(reference_space, reference_space_type) {
+ GodotWebXR.space = reference_space;
+
+ // Using reference_space.addEventListener() crashes when
+ // using the polyfill with the WebXR Emulator extension,
+ // so we set the event property instead.
+ reference_space.onreset = function (evt) {
+ const c_str = GodotRuntime.allocString('reference_space_reset');
+ onsimpleevent(c_str);
+ GodotRuntime.free(c_str);
+ };
+
+ // Now that both GodotWebXR.session and GodotWebXR.space are
+ // set, we need to pause and resume the main loop for the XR
+ // main loop to kick in.
+ GodotWebXR.pauseResumeMainLoop();
+
+ // Call in setTimeout() so that errors in the onstarted()
+ // callback don't bubble up here and cause Godot to try the
+ // next reference space.
+ window.setTimeout(function () {
+ const c_str = GodotRuntime.allocString(reference_space_type);
+ onstarted(c_str);
+ GodotRuntime.free(c_str);
+ }, 0);
+ }
+
+ function requestReferenceSpace() {
+ const reference_space_type = requested_reference_space_types.shift();
+ session.requestReferenceSpace(reference_space_type)
+ .then((refSpace) => {
+ onReferenceSpaceSuccess(refSpace, reference_space_type);
+ })
+ .catch(() => {
+ if (requested_reference_space_types.length === 0) {
+ const c_str = GodotRuntime.allocString('Unable to get any of the requested reference space types');
+ onfailed(c_str);
+ GodotRuntime.free(c_str);
+ } else {
+ requestReferenceSpace();
+ }
+ });
+ }
+
+ requestReferenceSpace();
+ }).catch(function (error) {
+ const c_str = GodotRuntime.allocString(`Unable to make WebGL context compatible with WebXR: ${error}`);
+ onfailed(c_str);
+ GodotRuntime.free(c_str);
+ });
+ }).catch(function (error) {
+ const c_str = GodotRuntime.allocString(`Unable to start session: ${error}`);
+ onfailed(c_str);
+ GodotRuntime.free(c_str);
+ });
+ },
+
+ godot_webxr_uninitialize__proxy: 'sync',
+ godot_webxr_uninitialize__sig: 'v',
+ godot_webxr_uninitialize: function () {
+ if (GodotWebXR.session) {
+ GodotWebXR.session.end()
+ // Prevent exception when session has already ended.
+ .catch((e) => { });
+ }
+
+ // Clean-up the textures we allocated for each view.
+ const gl = GodotWebXR.gl;
+ for (let i = 0; i < GodotWebXR.textures.length; i++) {
+ const texture = GodotWebXR.textures[i];
+ if (texture !== null) {
+ gl.deleteTexture(texture);
+ }
+ GodotWebXR.textures[i] = null;
+ GodotWebXR.texture_ids[i] = null;
+ }
+
+ GodotWebXR.session = null;
+ GodotWebXR.space = null;
+ GodotWebXR.frame = null;
+ GodotWebXR.pose = null;
+
+ // Disable the monkey-patched window.requestAnimationFrame() and
+ // pause/restart the main loop to activate it on all platforms.
+ GodotWebXR.monkeyPatchRequestAnimationFrame(false);
+ GodotWebXR.pauseResumeMainLoop();
+ },
+
+ godot_webxr_get_render_targetsize__proxy: 'sync',
+ godot_webxr_get_render_targetsize__sig: 'i',
+ godot_webxr_get_render_targetsize: function () {
+ if (!GodotWebXR.session || !GodotWebXR.pose) {
+ return 0;
+ }
+
+ const glLayer = GodotWebXR.session.renderState.baseLayer;
+ const view = GodotWebXR.pose.views[0];
+ const viewport = glLayer.getViewport(view);
+
+ const buf = GodotRuntime.malloc(2 * 4);
+ GodotRuntime.setHeapValue(buf + 0, viewport.width, 'i32');
+ GodotRuntime.setHeapValue(buf + 4, viewport.height, 'i32');
+ return buf;
+ },
+
+ godot_webxr_get_transform_for_eye__proxy: 'sync',
+ godot_webxr_get_transform_for_eye__sig: 'ii',
+ godot_webxr_get_transform_for_eye: function (p_eye) {
+ if (!GodotWebXR.session || !GodotWebXR.pose) {
+ return 0;
+ }
+
+ const views = GodotWebXR.pose.views;
+ let matrix;
+ if (p_eye === 0) {
+ matrix = GodotWebXR.pose.transform.matrix;
+ } else {
+ matrix = views[p_eye - 1].transform.matrix;
+ }
+ const buf = GodotRuntime.malloc(16 * 4);
+ for (let i = 0; i < 16; i++) {
+ GodotRuntime.setHeapValue(buf + (i * 4), matrix[i], 'float');
+ }
+ return buf;
+ },
+
+ godot_webxr_get_projection_for_eye__proxy: 'sync',
+ godot_webxr_get_projection_for_eye__sig: 'ii',
+ godot_webxr_get_projection_for_eye: function (p_eye) {
+ if (!GodotWebXR.session || !GodotWebXR.pose) {
+ return 0;
+ }
+
+ const view_index = (p_eye === 2 /* ARVRInterface::EYE_RIGHT */) ? 1 : 0;
+ const matrix = GodotWebXR.pose.views[view_index].projectionMatrix;
+ const buf = GodotRuntime.malloc(16 * 4);
+ for (let i = 0; i < 16; i++) {
+ GodotRuntime.setHeapValue(buf + (i * 4), matrix[i], 'float');
+ }
+ return buf;
+ },
+
+ godot_webxr_get_external_texture_for_eye__proxy: 'sync',
+ godot_webxr_get_external_texture_for_eye__sig: 'ii',
+ godot_webxr_get_external_texture_for_eye: function (p_eye) {
+ if (!GodotWebXR.session || !GodotWebXR.pose) {
+ return 0;
+ }
+
+ const view_index = (p_eye === 2 /* ARVRInterface::EYE_RIGHT */) ? 1 : 0;
+ if (GodotWebXR.texture_ids[view_index]) {
+ return GodotWebXR.texture_ids[view_index];
+ }
+
+ const glLayer = GodotWebXR.session.renderState.baseLayer;
+ const view = GodotWebXR.pose.views[view_index];
+ const viewport = glLayer.getViewport(view);
+ const gl = GodotWebXR.gl;
+
+ const texture = gl.createTexture();
+ gl.bindTexture(gl.TEXTURE_2D, texture);
+ gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, viewport.width, viewport.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
+
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+ gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+ gl.bindTexture(gl.TEXTURE_2D, null);
+
+ const texture_id = GL.getNewId(GL.textures);
+ GL.textures[texture_id] = texture;
+ GodotWebXR.textures[view_index] = texture;
+ GodotWebXR.texture_ids[view_index] = texture_id;
+ return texture_id;
+ },
+
+ godot_webxr_commit_for_eye__proxy: 'sync',
+ godot_webxr_commit_for_eye__sig: 'vi',
+ godot_webxr_commit_for_eye: function (p_eye) {
+ if (!GodotWebXR.session || !GodotWebXR.pose) {
+ return;
+ }
+
+ const view_index = (p_eye === 2 /* ARVRInterface::EYE_RIGHT */) ? 1 : 0;
+ const glLayer = GodotWebXR.session.renderState.baseLayer;
+ const view = GodotWebXR.pose.views[view_index];
+ const viewport = glLayer.getViewport(view);
+ const gl = GodotWebXR.gl;
+
+ const orig_framebuffer = gl.getParameter(gl.FRAMEBUFFER_BINDING);
+ const orig_viewport = gl.getParameter(gl.VIEWPORT);
+
+ // Bind to WebXR's framebuffer.
+ gl.bindFramebuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
+ gl.viewport(viewport.x, viewport.y, viewport.width, viewport.height);
+
+ GodotWebXR.blitTexture(gl, GodotWebXR.textures[view_index]);
+
+ // Restore state.
+ gl.bindFramebuffer(gl.FRAMEBUFFER, orig_framebuffer);
+ gl.viewport(orig_viewport[0], orig_viewport[1], orig_viewport[2], orig_viewport[3]);
+ },
+
+ godot_webxr_sample_controller_data__proxy: 'sync',
+ godot_webxr_sample_controller_data__sig: 'v',
+ godot_webxr_sample_controller_data: function () {
+ GodotWebXR.sampleControllers();
+ },
+
+ godot_webxr_get_controller_count__proxy: 'sync',
+ godot_webxr_get_controller_count__sig: 'i',
+ godot_webxr_get_controller_count: function () {
+ if (!GodotWebXR.session || !GodotWebXR.frame) {
+ return 0;
+ }
+ return GodotWebXR.controllers.length;
+ },
+
+ godot_webxr_is_controller_connected__proxy: 'sync',
+ godot_webxr_is_controller_connected__sig: 'ii',
+ godot_webxr_is_controller_connected: function (p_controller) {
+ if (!GodotWebXR.session || !GodotWebXR.frame) {
+ return false;
+ }
+ return !!GodotWebXR.controllers[p_controller];
+ },
+
+ godot_webxr_get_controller_transform__proxy: 'sync',
+ godot_webxr_get_controller_transform__sig: 'ii',
+ godot_webxr_get_controller_transform: function (p_controller) {
+ if (!GodotWebXR.session || !GodotWebXR.frame) {
+ return 0;
+ }
+
+ const controller = GodotWebXR.controllers[p_controller];
+ if (!controller) {
+ return 0;
+ }
+
+ const frame = GodotWebXR.frame;
+ const space = GodotWebXR.space;
+
+ const pose = frame.getPose(controller.targetRaySpace, space);
+ if (!pose) {
+ // This can mean that the controller lost tracking.
+ return 0;
+ }
+ const matrix = pose.transform.matrix;
+
+ const buf = GodotRuntime.malloc(16 * 4);
+ for (let i = 0; i < 16; i++) {
+ GodotRuntime.setHeapValue(buf + (i * 4), matrix[i], 'float');
+ }
+ return buf;
+ },
+
+ godot_webxr_get_controller_buttons__proxy: 'sync',
+ godot_webxr_get_controller_buttons__sig: 'ii',
+ godot_webxr_get_controller_buttons: function (p_controller) {
+ if (GodotWebXR.controllers.length === 0) {
+ return 0;
+ }
+
+ const controller = GodotWebXR.controllers[p_controller];
+ if (!controller || !controller.gamepad) {
+ return 0;
+ }
+
+ const button_count = controller.gamepad.buttons.length;
+
+ const buf = GodotRuntime.malloc((button_count + 1) * 4);
+ GodotRuntime.setHeapValue(buf, button_count, 'i32');
+ for (let i = 0; i < button_count; i++) {
+ GodotRuntime.setHeapValue(buf + 4 + (i * 4), controller.gamepad.buttons[i].value, 'float');
+ }
+ return buf;
+ },
+
+ godot_webxr_get_controller_axes__proxy: 'sync',
+ godot_webxr_get_controller_axes__sig: 'ii',
+ godot_webxr_get_controller_axes: function (p_controller) {
+ if (GodotWebXR.controllers.length === 0) {
+ return 0;
+ }
+
+ const controller = GodotWebXR.controllers[p_controller];
+ if (!controller || !controller.gamepad) {
+ return 0;
+ }
+
+ const axes_count = controller.gamepad.axes.length;
+
+ const buf = GodotRuntime.malloc((axes_count + 1) * 4);
+ GodotRuntime.setHeapValue(buf, axes_count, 'i32');
+ for (let i = 0; i < axes_count; i++) {
+ let value = controller.gamepad.axes[i];
+ if (i === 1 || i === 3) {
+ // Invert the Y-axis on thumbsticks and trackpads, in order to
+ // match OpenXR and other XR platform SDKs.
+ value *= -1.0;
+ }
+ GodotRuntime.setHeapValue(buf + 4 + (i * 4), value, 'float');
+ }
+ return buf;
+ },
+
+ godot_webxr_get_visibility_state__proxy: 'sync',
+ godot_webxr_get_visibility_state__sig: 'i',
+ godot_webxr_get_visibility_state: function () {
+ if (!GodotWebXR.session || !GodotWebXR.session.visibilityState) {
+ return 0;
+ }
+
+ return GodotRuntime.allocString(GodotWebXR.session.visibilityState);
+ },
+
+ godot_webxr_get_bounds_geometry__proxy: 'sync',
+ godot_webxr_get_bounds_geometry__sig: 'i',
+ godot_webxr_get_bounds_geometry: function () {
+ if (!GodotWebXR.space || !GodotWebXR.space.boundsGeometry) {
+ return 0;
+ }
+
+ const point_count = GodotWebXR.space.boundsGeometry.length;
+ if (point_count === 0) {
+ return 0;
+ }
+
+ const buf = GodotRuntime.malloc(((point_count * 3) + 1) * 4);
+ GodotRuntime.setHeapValue(buf, point_count, 'i32');
+ for (let i = 0; i < point_count; i++) {
+ const point = GodotWebXR.space.boundsGeometry[i];
+ GodotRuntime.setHeapValue(buf + ((i * 3) + 1) * 4, point.x, 'float');
+ GodotRuntime.setHeapValue(buf + ((i * 3) + 2) * 4, point.y, 'float');
+ GodotRuntime.setHeapValue(buf + ((i * 3) + 3) * 4, point.z, 'float');
+ }
+
+ return buf;
+ },
+};
+
+autoAddDeps(GodotWebXR, '$GodotWebXR');
+mergeInto(LibraryManager.library, GodotWebXR);