bytev-charts/lib/plugin/three.js/examples/jsm/renderers/webgpu/WebGPUUniformsGroup.js

基于echarts和JavaScript及ES6封装的一个可以直接调用的图表组件库，内置主题设计，简单快捷，且支持用户自定义配置； npm 安装方式: npm install bytev-charts 若启动提示还需额外install插件,则运行 npm install @babel/runtime-corejs2 即可;

import "core-js/modules/es.array.slice.js";
import "core-js/modules/es.regexp.exec.js";
import _Reflect$construct from "@babel/runtime-corejs2/core-js/reflect/construct";
import _Array$from from "@babel/runtime-corejs2/core-js/array/from";
import _Symbol from "@babel/runtime-corejs2/core-js/symbol";
import _Symbol$iterator from "@babel/runtime-corejs2/core-js/symbol/iterator";
import _Array$isArray from "@babel/runtime-corejs2/core-js/array/is-array";
import _toConsumableArray from "@babel/runtime-corejs2/helpers/toConsumableArray";
import _classCallCheck from "@babel/runtime-corejs2/helpers/classCallCheck";
import _createClass from "@babel/runtime-corejs2/helpers/createClass";
import _assertThisInitialized from "@babel/runtime-corejs2/helpers/assertThisInitialized";
import _inherits from "@babel/runtime-corejs2/helpers/inherits";
import _possibleConstructorReturn from "@babel/runtime-corejs2/helpers/possibleConstructorReturn";
import _getPrototypeOf from "@babel/runtime-corejs2/helpers/getPrototypeOf";

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof _Symbol !== "undefined" && o[_Symbol$iterator] || o["@@iterator"]; if (!it) { if (_Array$isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return _Array$from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

import _Map from "@babel/runtime-corejs2/core-js/map";
import _Object$defineProperty from "@babel/runtime-corejs2/core-js/object/define-property";
import "core-js/modules/es.function.name.js";
import "core-js/modules/es.array.iterator.js";
import "core-js/modules/es.object.to-string.js";
import "core-js/modules/web.dom-collections.iterator.js";

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = _Reflect$construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !_Reflect$construct) return false; if (_Reflect$construct.sham) return false; if (typeof Proxy === "function") return true; try { Boolean.prototype.valueOf.call(_Reflect$construct(Boolean, [], function () {})); return true; } catch (e) { return false; } }

import WebGPUBinding from './WebGPUBinding.js';

var WebGPUUniformsGroup = /*#__PURE__*/function (_WebGPUBinding) {
  _inherits(WebGPUUniformsGroup, _WebGPUBinding);

  var _super = _createSuper(WebGPUUniformsGroup);

  function WebGPUUniformsGroup() {
    var _this;

    _classCallCheck(this, WebGPUUniformsGroup);

    _this = _super.call(this);
    _this.name = '';
    _this.uniforms = new _Map();

    _this.update = function () {};

    _this.type = 'uniform-buffer';
    _this.visibility = GPUShaderStage.VERTEX;
    _this.usage = GPUBufferUsage.UNIFORM | GPUBufferUsage.COPY_DST;
    _this.array = null; // set by the renderer

    _this.bufferGPU = null; // set by the renderer

    _Object$defineProperty(_assertThisInitialized(_this), 'isUniformsGroup', {
      value: true
    });

    return _this;
  }

  _createClass(WebGPUUniformsGroup, [{
    key: "setName",
    value: function setName(name) {
      this.name = name;
    }
  }, {
    key: "setUniform",
    value: function setUniform(name, uniform) {
      this.uniforms.set(name, uniform);
      return this;
    }
  }, {
    key: "removeUniform",
    value: function removeUniform(name) {
      this.uniforms["delete"](name);
      return this;
    }
  }, {
    key: "setUpdateCallback",
    value: function setUpdateCallback(callback) {
      this.update = callback;
      return this;
    }
  }, {
    key: "copy",
    value: function copy(source) {
      this.name = source.name;
      var uniformsSource = source.uniforms;
      this.uniforms.clear();

      var _iterator = _createForOfIteratorHelper(uniformsSource),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var _this$uniforms;

          var entry = _step.value;

          (_this$uniforms = this.uniforms).set.apply(_this$uniforms, _toConsumableArray(entry));
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      return this;
    }
  }, {
    key: "clone",
    value: function clone() {
      return new this.constructor().copy(this);
    }
  }, {
    key: "getByteLength",
    value: function getByteLength() {
      var size = 0;

      var _iterator2 = _createForOfIteratorHelper(this.uniforms.values()),
          _step2;

      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var uniform = _step2.value;
          size += this.getUniformByteLength(uniform);
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }

      return size;
    }
  }, {
    key: "getUniformByteLength",
    value: function getUniformByteLength(uniform) {
      var size;

      if (typeof uniform === 'number') {
        size = 4;
      } else if (uniform.isVector2) {
        size = 8;
      } else if (uniform.isVector3 || uniform.isColor) {
        size = 12;
      } else if (uniform.isVector4) {
        size = 16;
      } else if (uniform.isMatrix3) {
        size = 36;
      } else if (uniform.isMatrix4) {
        size = 64;
      } else if (uniform.isTexture) {
        console.error('THREE.UniformsGroup: Texture samplers can not be part of an uniforms group.');
      } else {
        console.error('THREE.UniformsGroup: Unsupported uniform value type.', uniform);
      }

      return size;
    }
  }]);

  return WebGPUUniformsGroup;
}(WebGPUBinding);

export default WebGPUUniformsGroup;