UNPKG

@gmod/cram

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read CRAM files with pure Javascript

107 lines 4.73 kB
"use strict"; // @ts-nocheck // /* * Copyright (c) 2020 Genome Research Ltd. * Author(s): James Bonfield * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials provided * with the distribution. * * 3. Neither the names Genome Research Ltd and Wellcome Trust Sanger * Institute nor the names of its contributors may be used to endorse * or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY GENOME RESEARCH LTD AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENOME RESEARCH * LTD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { if (k2 === undefined) k2 = k; var desc = Object.getOwnPropertyDescriptor(m, k); if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { desc = { enumerable: true, get: function() { return m[k]; } }; } Object.defineProperty(o, k2, desc); }) : (function(o, m, k, k2) { if (k2 === undefined) k2 = k; o[k2] = m[k]; })); var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { Object.defineProperty(o, "default", { enumerable: true, value: v }); }) : function(o, v) { o["default"] = v; }); var __importStar = (this && this.__importStar) || (function () { var ownKeys = function(o) { ownKeys = Object.getOwnPropertyNames || function (o) { var ar = []; for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k; return ar; }; return ownKeys(o); }; return function (mod) { if (mod && mod.__esModule) return mod; var result = {}; if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]); __setModuleDefault(result, mod); return result; }; })(); var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.r4x8_uncompress = r4x8_uncompress; exports.r4x16_uncompress = r4x16_uncompress; exports.arith_uncompress = arith_uncompress; exports.fqzcomp_uncompress = fqzcomp_uncompress; exports.tok3_uncompress = tok3_uncompress; // This is an interface to the htscodecs reference implementation of // the CRAM 3.1 codecs. // This JavaScript file is not part of the reference implementation // and is simply and interface to get a consistent interface for cram-js. const arith_gen_ts_1 = __importDefault(require("./arith_gen.js")); const fqzcomp = __importStar(require("./fqzcomp.js")); const r4x8 = __importStar(require("./rans.js")); const r4x16 = __importStar(require("./rans4x16.js")); const tok3 = __importStar(require("./tok3.js")); function r4x8_uncompress(inputBuffer) { return r4x8.decode(inputBuffer); } function r4x16_uncompress(inputBuffer) { return r4x16.decode(inputBuffer); } function arith_uncompress(inputBuffer) { // fix by @cmdcolin for CRAM 3.1 // xref https://github.com/jkbonfield/htscodecs/pull/1/files return new arith_gen_ts_1.default().decode(inputBuffer); } function fqzcomp_uncompress(inputBuffer) { const q_lens = []; return fqzcomp.decode(inputBuffer, q_lens); } function tok3_uncompress(inputBuffer) { // Returns in string form instead of buffer const out = tok3.decode(inputBuffer, 0, '\0'); return Uint8Array.from(Array.from(out).map(letter => letter.charCodeAt(0))); } //# sourceMappingURL=index.js.map