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@luma.gl/shadertools

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Shader module system for luma.gl

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"use strict"; var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault"); Object.defineProperty(exports, "__esModule", { value: true }); exports.TEST_EXPORTS = void 0; exports.resolveModules = resolveModules; var _shaderModule = _interopRequireDefault(require("./shader-module")); var _utils = require("../utils"); 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; } function resolveModules(modules) { return getShaderDependencies(instantiateModules(modules)); } function getShaderDependencies(modules) { var moduleMap = {}; var moduleDepth = {}; getDependencyGraph({ modules: modules, level: 0, moduleMap: moduleMap, moduleDepth: moduleDepth }); return Object.keys(moduleDepth).sort(function (a, b) { return moduleDepth[b] - moduleDepth[a]; }).map(function (name) { return moduleMap[name]; }); } function getDependencyGraph(_ref) { var modules = _ref.modules, level = _ref.level, moduleMap = _ref.moduleMap, moduleDepth = _ref.moduleDepth; if (level >= 5) { throw new Error('Possible loop in shader dependency graph'); } var _iterator = _createForOfIteratorHelper(modules), _step; try { for (_iterator.s(); !(_step = _iterator.n()).done;) { var module = _step.value; moduleMap[module.name] = module; if (moduleDepth[module.name] === undefined || moduleDepth[module.name] < level) { moduleDepth[module.name] = level; } } } catch (err) { _iterator.e(err); } finally { _iterator.f(); } var _iterator2 = _createForOfIteratorHelper(modules), _step2; try { for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) { var _module = _step2.value; if (_module.dependencies) { getDependencyGraph({ modules: _module.dependencies, level: level + 1, moduleMap: moduleMap, moduleDepth: moduleDepth }); } } } catch (err) { _iterator2.e(err); } finally { _iterator2.f(); } } function instantiateModules(modules, seen) { return modules.map(function (module) { if (module instanceof _shaderModule.default) { return module; } (0, _utils.assert)(typeof module !== 'string', "Shader module use by name is deprecated. Import shader module '".concat(module, "' and use it directly.")); (0, _utils.assert)(module.name, 'shader module has no name'); module = new _shaderModule.default(module); module.dependencies = instantiateModules(module.dependencies); return module; }); } var TEST_EXPORTS = { getShaderDependencies: getShaderDependencies, getDependencyGraph: getDependencyGraph }; exports.TEST_EXPORTS = TEST_EXPORTS; //# sourceMappingURL=resolve-modules.js.map