Elijah
267d429122
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164 KiB
JavaScript
5555 lines
No EOL
164 KiB
JavaScript
/**
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* @licstart The following is the entire license notice for the
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* JavaScript code in this page
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*
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* Copyright 2024 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @licend The above is the entire license notice for the
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* JavaScript code in this page
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*/
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/**
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* pdfjsVersion = 5.7.284
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* pdfjsBuild = 7e5b36c2d
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*/
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/******/ // The require scope
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/******/ var __webpack_require__ = {};
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/******/
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/************************************************************************/
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/******/ /* webpack/runtime/define property getters */
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/******/ (() => {
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/******/ // define getter functions for harmony exports
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/******/ __webpack_require__.d = (exports, definition) => {
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/******/ for(var key in definition) {
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
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/******/ }
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/******/ }
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/******/ };
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/******/ })();
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/******/
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/******/ /* webpack/runtime/hasOwnProperty shorthand */
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/******/ (() => {
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/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop))
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/******/ })();
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/******/
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/************************************************************************/
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;// ./src/shared/util.js
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const isNodeJS = typeof process === "object" && process + "" === "[object process]" && !process.versions.nw && !(process.versions.electron && process.type && process.type !== "browser");
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const BBOX_INIT = [Infinity, Infinity, -Infinity, -Infinity];
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const F32_BBOX_INIT = new Float32Array(BBOX_INIT);
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const FONT_IDENTITY_MATRIX = (/* unused pure expression or super */ null && ([0.001, 0, 0, 0.001, 0, 0]));
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const LINE_FACTOR = 1.35;
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const LINE_DESCENT_FACTOR = 0.35;
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const BASELINE_FACTOR = LINE_DESCENT_FACTOR / LINE_FACTOR;
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const RenderingIntentFlag = {
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ANY: 0x01,
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DISPLAY: 0x02,
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PRINT: 0x04,
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SAVE: 0x08,
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ANNOTATIONS_FORMS: 0x10,
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ANNOTATIONS_STORAGE: 0x20,
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ANNOTATIONS_DISABLE: 0x40,
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IS_EDITING: 0x80,
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OPLIST: 0x100
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};
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const AnnotationMode = {
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DISABLE: 0,
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ENABLE: 1,
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ENABLE_FORMS: 2,
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ENABLE_STORAGE: 3
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};
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const AnnotationEditorPrefix = "pdfjs_internal_editor_";
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const AnnotationEditorType = {
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DISABLE: -1,
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NONE: 0,
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FREETEXT: 3,
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HIGHLIGHT: 9,
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STAMP: 13,
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INK: 15,
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POPUP: 16,
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SIGNATURE: 101,
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COMMENT: 102
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};
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const AnnotationEditorParamsType = {
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RESIZE: 1,
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CREATE: 2,
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FREETEXT_SIZE: 11,
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FREETEXT_COLOR: 12,
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FREETEXT_OPACITY: 13,
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INK_COLOR: 21,
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INK_THICKNESS: 22,
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INK_OPACITY: 23,
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INK_COLOR_AND_OPACITY: 24,
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HIGHLIGHT_COLOR: 31,
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HIGHLIGHT_THICKNESS: 32,
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HIGHLIGHT_FREE: 33,
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HIGHLIGHT_SHOW_ALL: 34,
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DRAW_STEP: 41
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};
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const PermissionFlag = {
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PRINT: 0x04,
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MODIFY_CONTENTS: 0x08,
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COPY: 0x10,
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MODIFY_ANNOTATIONS: 0x20,
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FILL_INTERACTIVE_FORMS: 0x100,
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COPY_FOR_ACCESSIBILITY: 0x200,
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ASSEMBLE: 0x400,
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PRINT_HIGH_QUALITY: 0x800
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};
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const MeshFigureType = {
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TRIANGLES: 1,
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LATTICE: 2,
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PATCH: 3
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};
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const TextRenderingMode = {
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FILL: 0,
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STROKE: 1,
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FILL_STROKE: 2,
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INVISIBLE: 3,
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FILL_ADD_TO_PATH: 4,
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STROKE_ADD_TO_PATH: 5,
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FILL_STROKE_ADD_TO_PATH: 6,
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ADD_TO_PATH: 7,
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FILL_STROKE_MASK: 3,
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ADD_TO_PATH_FLAG: 4
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};
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const ImageKind = {
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GRAYSCALE_1BPP: 1,
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RGB_24BPP: 2,
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RGBA_32BPP: 3
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};
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const AnnotationType = {
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TEXT: 1,
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LINK: 2,
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FREETEXT: 3,
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LINE: 4,
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SQUARE: 5,
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CIRCLE: 6,
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POLYGON: 7,
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POLYLINE: 8,
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HIGHLIGHT: 9,
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UNDERLINE: 10,
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SQUIGGLY: 11,
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STRIKEOUT: 12,
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STAMP: 13,
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CARET: 14,
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INK: 15,
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POPUP: 16,
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FILEATTACHMENT: 17,
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SOUND: 18,
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MOVIE: 19,
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WIDGET: 20,
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SCREEN: 21,
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PRINTERMARK: 22,
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TRAPNET: 23,
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WATERMARK: 24,
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THREED: 25,
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REDACT: 26
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};
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const AnnotationReplyType = {
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GROUP: "Group",
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REPLY: "R"
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};
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const AnnotationFlag = {
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INVISIBLE: 0x01,
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HIDDEN: 0x02,
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PRINT: 0x04,
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NOZOOM: 0x08,
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NOROTATE: 0x10,
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NOVIEW: 0x20,
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READONLY: 0x40,
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LOCKED: 0x80,
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TOGGLENOVIEW: 0x100,
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LOCKEDCONTENTS: 0x200
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};
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const AnnotationFieldFlag = {
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READONLY: 0x0000001,
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REQUIRED: 0x0000002,
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NOEXPORT: 0x0000004,
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MULTILINE: 0x0001000,
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PASSWORD: 0x0002000,
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NOTOGGLETOOFF: 0x0004000,
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RADIO: 0x0008000,
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PUSHBUTTON: 0x0010000,
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COMBO: 0x0020000,
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EDIT: 0x0040000,
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SORT: 0x0080000,
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FILESELECT: 0x0100000,
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MULTISELECT: 0x0200000,
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DONOTSPELLCHECK: 0x0400000,
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DONOTSCROLL: 0x0800000,
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COMB: 0x1000000,
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RICHTEXT: 0x2000000,
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RADIOSINUNISON: 0x2000000,
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COMMITONSELCHANGE: 0x4000000
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};
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const AnnotationBorderStyleType = {
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SOLID: 1,
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DASHED: 2,
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BEVELED: 3,
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INSET: 4,
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UNDERLINE: 5
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};
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const AnnotationActionEventType = {
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E: "Mouse Enter",
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X: "Mouse Exit",
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D: "Mouse Down",
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U: "Mouse Up",
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Fo: "Focus",
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Bl: "Blur",
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PO: "PageOpen",
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PC: "PageClose",
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PV: "PageVisible",
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PI: "PageInvisible",
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K: "Keystroke",
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F: "Format",
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V: "Validate",
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C: "Calculate"
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};
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const DocumentActionEventType = {
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WC: "WillClose",
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WS: "WillSave",
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DS: "DidSave",
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WP: "WillPrint",
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DP: "DidPrint"
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};
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const PageActionEventType = {
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O: "PageOpen",
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C: "PageClose"
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};
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const VerbosityLevel = {
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ERRORS: 0,
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WARNINGS: 1,
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INFOS: 5
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};
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const OPS = {
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dependency: 1,
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setLineWidth: 2,
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setLineCap: 3,
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setLineJoin: 4,
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setMiterLimit: 5,
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setDash: 6,
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setRenderingIntent: 7,
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setFlatness: 8,
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setGState: 9,
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save: 10,
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restore: 11,
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transform: 12,
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moveTo: 13,
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lineTo: 14,
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curveTo: 15,
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curveTo2: 16,
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curveTo3: 17,
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closePath: 18,
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rectangle: 19,
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stroke: 20,
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closeStroke: 21,
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fill: 22,
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eoFill: 23,
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fillStroke: 24,
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eoFillStroke: 25,
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closeFillStroke: 26,
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closeEOFillStroke: 27,
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endPath: 28,
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clip: 29,
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eoClip: 30,
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beginText: 31,
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endText: 32,
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setCharSpacing: 33,
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setWordSpacing: 34,
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setHScale: 35,
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setLeading: 36,
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setFont: 37,
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setTextRenderingMode: 38,
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setTextRise: 39,
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moveText: 40,
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setLeadingMoveText: 41,
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setTextMatrix: 42,
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nextLine: 43,
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showText: 44,
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showSpacedText: 45,
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nextLineShowText: 46,
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nextLineSetSpacingShowText: 47,
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setCharWidth: 48,
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setCharWidthAndBounds: 49,
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setStrokeColorSpace: 50,
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setFillColorSpace: 51,
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setStrokeColor: 52,
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setStrokeColorN: 53,
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setFillColor: 54,
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setFillColorN: 55,
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setStrokeGray: 56,
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setFillGray: 57,
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setStrokeRGBColor: 58,
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setFillRGBColor: 59,
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setStrokeCMYKColor: 60,
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setFillCMYKColor: 61,
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shadingFill: 62,
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beginInlineImage: 63,
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beginImageData: 64,
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endInlineImage: 65,
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paintXObject: 66,
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markPoint: 67,
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markPointProps: 68,
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beginMarkedContent: 69,
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beginMarkedContentProps: 70,
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endMarkedContent: 71,
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beginCompat: 72,
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endCompat: 73,
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paintFormXObjectBegin: 74,
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paintFormXObjectEnd: 75,
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beginGroup: 76,
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endGroup: 77,
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beginAnnotation: 80,
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endAnnotation: 81,
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paintImageMaskXObject: 83,
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paintImageMaskXObjectGroup: 84,
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paintImageXObject: 85,
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paintInlineImageXObject: 86,
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paintInlineImageXObjectGroup: 87,
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paintImageXObjectRepeat: 88,
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paintImageMaskXObjectRepeat: 89,
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paintSolidColorImageMask: 90,
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constructPath: 91,
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setStrokeTransparent: 92,
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setFillTransparent: 93,
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rawFillPath: 94
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};
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const DrawOPS = {
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moveTo: 0,
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lineTo: 1,
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curveTo: 2,
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quadraticCurveTo: 3,
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closePath: 4
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};
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const PasswordResponses = {
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NEED_PASSWORD: 1,
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INCORRECT_PASSWORD: 2
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};
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let verbosity = VerbosityLevel.WARNINGS;
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function setVerbosityLevel(level) {
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if (Number.isInteger(level)) {
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verbosity = level;
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}
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}
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function getVerbosityLevel() {
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return verbosity;
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}
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function info(msg) {
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if (verbosity >= VerbosityLevel.INFOS) {
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console.info(`Info: ${msg}`);
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}
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}
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function warn(msg) {
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if (verbosity >= VerbosityLevel.WARNINGS) {
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console.warn(`Warning: ${msg}`);
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}
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}
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function unreachable(msg) {
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throw new Error(msg);
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}
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function assert(cond, msg) {
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if (!cond) {
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unreachable(msg);
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}
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}
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function _isValidProtocol(url) {
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switch (url?.protocol) {
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case "http:":
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case "https:":
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case "ftp:":
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case "mailto:":
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case "tel:":
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return true;
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default:
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return false;
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}
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}
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function createValidAbsoluteUrl(url, baseUrl = null, options = null) {
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if (!url) {
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return null;
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}
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if (options && typeof url === "string") {
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if (options.addDefaultProtocol && url.startsWith("www.")) {
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const dots = url.match(/\./g);
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if (dots?.length >= 2) {
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url = `http://${url}`;
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}
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}
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if (options.tryConvertEncoding) {
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try {
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url = stringToUTF8String(url);
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} catch {}
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}
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}
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const absoluteUrl = baseUrl ? URL.parse(url, baseUrl) : URL.parse(url);
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return _isValidProtocol(absoluteUrl) ? absoluteUrl : null;
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}
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function updateUrlHash(url, hash, allowRel = false) {
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const res = URL.parse(url);
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if (res) {
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res.hash = hash;
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return res.href;
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}
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if (allowRel && createValidAbsoluteUrl(url, "http://example.com")) {
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return url.split("#", 1)[0] + `${hash ? `#${hash}` : ""}`;
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}
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return "";
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}
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function stripPath(str) {
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return str.substring(str.lastIndexOf("/") + 1);
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}
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function shadow(obj, prop, value, nonSerializable = false) {
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Object.defineProperty(obj, prop, {
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value,
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enumerable: !nonSerializable,
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configurable: true,
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writable: false
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});
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return value;
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}
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const BaseException = function BaseExceptionClosure() {
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function BaseException(message, name) {
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this.message = message;
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this.name = name;
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}
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BaseException.prototype = new Error();
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BaseException.constructor = BaseException;
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return BaseException;
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}();
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class PasswordException extends BaseException {
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constructor(msg, code) {
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super(msg, "PasswordException");
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this.code = code;
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}
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}
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class UnknownErrorException extends BaseException {
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constructor(msg, details) {
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super(msg, "UnknownErrorException");
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this.details = details;
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}
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}
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class InvalidPDFException extends BaseException {
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constructor(msg) {
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super(msg, "InvalidPDFException");
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||
}
|
||
}
|
||
class ResponseException extends BaseException {
|
||
constructor(msg, status, missing) {
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||
super(msg, "ResponseException");
|
||
this.status = status;
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||
this.missing = missing;
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||
}
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||
}
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class FormatError extends BaseException {
|
||
constructor(msg) {
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||
super(msg, "FormatError");
|
||
}
|
||
}
|
||
class AbortException extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "AbortException");
|
||
}
|
||
}
|
||
function bytesToString(bytes) {
|
||
if (typeof bytes !== "object" || bytes?.length === undefined) {
|
||
unreachable("Invalid argument for bytesToString");
|
||
}
|
||
const length = bytes.length;
|
||
const MAX_ARGUMENT_COUNT = 8192;
|
||
if (length < MAX_ARGUMENT_COUNT) {
|
||
return String.fromCharCode.apply(null, bytes);
|
||
}
|
||
const strBuf = [];
|
||
for (let i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
|
||
const chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
|
||
const chunk = bytes.subarray(i, chunkEnd);
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strBuf.push(String.fromCharCode.apply(null, chunk));
|
||
}
|
||
return strBuf.join("");
|
||
}
|
||
function stringToBytes(str) {
|
||
if (typeof str !== "string") {
|
||
unreachable("Invalid argument for stringToBytes");
|
||
}
|
||
const length = str.length;
|
||
const bytes = new Uint8Array(length);
|
||
for (let i = 0; i < length; ++i) {
|
||
bytes[i] = str.charCodeAt(i) & 0xff;
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||
}
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||
return bytes;
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||
}
|
||
function objectSize(obj) {
|
||
return Object.keys(obj).length;
|
||
}
|
||
function isLittleEndian() {
|
||
const buffer8 = new Uint8Array(4);
|
||
buffer8[0] = 1;
|
||
const view32 = new Uint32Array(buffer8.buffer, 0, 1);
|
||
return view32[0] === 1;
|
||
}
|
||
class FeatureTest {
|
||
static get isLittleEndian() {
|
||
return shadow(this, "isLittleEndian", isLittleEndian());
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||
}
|
||
static get isOffscreenCanvasSupported() {
|
||
return shadow(this, "isOffscreenCanvasSupported", typeof OffscreenCanvas !== "undefined");
|
||
}
|
||
static get isImageDecoderSupported() {
|
||
return shadow(this, "isImageDecoderSupported", typeof ImageDecoder !== "undefined");
|
||
}
|
||
static get isFloat16ArraySupported() {
|
||
return shadow(this, "isFloat16ArraySupported", typeof Float16Array !== "undefined");
|
||
}
|
||
static get isSanitizerSupported() {
|
||
return shadow(this, "isSanitizerSupported", typeof Sanitizer !== "undefined");
|
||
}
|
||
static get platform() {
|
||
const {
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platform,
|
||
userAgent
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||
} = navigator;
|
||
return shadow(this, "platform", {
|
||
isAndroid: userAgent.includes("Android"),
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||
isLinux: platform.includes("Linux"),
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||
isMac: platform.includes("Mac"),
|
||
isWindows: platform.includes("Win"),
|
||
isFirefox: userAgent.includes("Firefox")
|
||
});
|
||
}
|
||
static get isCSSRoundSupported() {
|
||
return shadow(this, "isCSSRoundSupported", globalThis.CSS?.supports?.("width: round(1.5px, 1px)"));
|
||
}
|
||
static get isAlphaColorInputSupported() {
|
||
return shadow(this, "isAlphaColorInputSupported", (() => {
|
||
if (typeof document === "undefined") {
|
||
return false;
|
||
}
|
||
const input = document.createElement("input");
|
||
input.type = "color";
|
||
input.setAttribute("alpha", "");
|
||
input.value = "#ff000080";
|
||
return input.value !== "#ff0000";
|
||
})());
|
||
}
|
||
}
|
||
class Util {
|
||
static get hexNums() {
|
||
return shadow(this, "hexNums", Array.from(Array(256).keys(), n => n.toString(16).padStart(2, "0")));
|
||
}
|
||
static makeHexColor(r, g, b) {
|
||
return `#${this.hexNums[r]}${this.hexNums[g]}${this.hexNums[b]}`;
|
||
}
|
||
static domMatrixToTransform(dm) {
|
||
return [dm.a, dm.b, dm.c, dm.d, dm.e, dm.f];
|
||
}
|
||
static scaleMinMax(transform, minMax) {
|
||
let temp;
|
||
if (transform[0]) {
|
||
if (transform[0] < 0) {
|
||
temp = minMax[0];
|
||
minMax[0] = minMax[2];
|
||
minMax[2] = temp;
|
||
}
|
||
minMax[0] *= transform[0];
|
||
minMax[2] *= transform[0];
|
||
if (transform[3] < 0) {
|
||
temp = minMax[1];
|
||
minMax[1] = minMax[3];
|
||
minMax[3] = temp;
|
||
}
|
||
minMax[1] *= transform[3];
|
||
minMax[3] *= transform[3];
|
||
} else {
|
||
temp = minMax[0];
|
||
minMax[0] = minMax[1];
|
||
minMax[1] = temp;
|
||
temp = minMax[2];
|
||
minMax[2] = minMax[3];
|
||
minMax[3] = temp;
|
||
if (transform[1] < 0) {
|
||
temp = minMax[1];
|
||
minMax[1] = minMax[3];
|
||
minMax[3] = temp;
|
||
}
|
||
minMax[1] *= transform[1];
|
||
minMax[3] *= transform[1];
|
||
if (transform[2] < 0) {
|
||
temp = minMax[0];
|
||
minMax[0] = minMax[2];
|
||
minMax[2] = temp;
|
||
}
|
||
minMax[0] *= transform[2];
|
||
minMax[2] *= transform[2];
|
||
}
|
||
minMax[0] += transform[4];
|
||
minMax[1] += transform[5];
|
||
minMax[2] += transform[4];
|
||
minMax[3] += transform[5];
|
||
}
|
||
static transform(m1, m2) {
|
||
return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
|
||
}
|
||
static multiplyByDOMMatrix(m, md) {
|
||
return [m[0] * md.a + m[2] * md.b, m[1] * md.a + m[3] * md.b, m[0] * md.c + m[2] * md.d, m[1] * md.c + m[3] * md.d, m[0] * md.e + m[2] * md.f + m[4], m[1] * md.e + m[3] * md.f + m[5]];
|
||
}
|
||
static applyTransform(p, m, pos = 0) {
|
||
const p0 = p[pos];
|
||
const p1 = p[pos + 1];
|
||
p[pos] = p0 * m[0] + p1 * m[2] + m[4];
|
||
p[pos + 1] = p0 * m[1] + p1 * m[3] + m[5];
|
||
}
|
||
static applyTransformToBezier(p, transform, pos = 0) {
|
||
const m0 = transform[0];
|
||
const m1 = transform[1];
|
||
const m2 = transform[2];
|
||
const m3 = transform[3];
|
||
const m4 = transform[4];
|
||
const m5 = transform[5];
|
||
for (let i = 0; i < 6; i += 2) {
|
||
const pI = p[pos + i];
|
||
const pI1 = p[pos + i + 1];
|
||
p[pos + i] = pI * m0 + pI1 * m2 + m4;
|
||
p[pos + i + 1] = pI * m1 + pI1 * m3 + m5;
|
||
}
|
||
}
|
||
static applyInverseTransform(p, m) {
|
||
const p0 = p[0];
|
||
const p1 = p[1];
|
||
const d = m[0] * m[3] - m[1] * m[2];
|
||
p[0] = (p0 * m[3] - p1 * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
|
||
p[1] = (-p0 * m[1] + p1 * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
|
||
}
|
||
static axialAlignedBoundingBox(rect, transform, output) {
|
||
const m0 = transform[0];
|
||
const m1 = transform[1];
|
||
const m2 = transform[2];
|
||
const m3 = transform[3];
|
||
const m4 = transform[4];
|
||
const m5 = transform[5];
|
||
const r0 = rect[0];
|
||
const r1 = rect[1];
|
||
const r2 = rect[2];
|
||
const r3 = rect[3];
|
||
let a0 = m0 * r0 + m4;
|
||
let a2 = a0;
|
||
let a1 = m0 * r2 + m4;
|
||
let a3 = a1;
|
||
let b0 = m3 * r1 + m5;
|
||
let b2 = b0;
|
||
let b1 = m3 * r3 + m5;
|
||
let b3 = b1;
|
||
if (m1 !== 0 || m2 !== 0) {
|
||
const m1r0 = m1 * r0;
|
||
const m1r2 = m1 * r2;
|
||
const m2r1 = m2 * r1;
|
||
const m2r3 = m2 * r3;
|
||
a0 += m2r1;
|
||
a3 += m2r1;
|
||
a1 += m2r3;
|
||
a2 += m2r3;
|
||
b0 += m1r0;
|
||
b3 += m1r0;
|
||
b1 += m1r2;
|
||
b2 += m1r2;
|
||
}
|
||
output[0] = Math.min(output[0], a0, a1, a2, a3);
|
||
output[1] = Math.min(output[1], b0, b1, b2, b3);
|
||
output[2] = Math.max(output[2], a0, a1, a2, a3);
|
||
output[3] = Math.max(output[3], b0, b1, b2, b3);
|
||
}
|
||
static inverseTransform(m) {
|
||
const d = m[0] * m[3] - m[1] * m[2];
|
||
return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
|
||
}
|
||
static singularValueDecompose2dScale(matrix, output) {
|
||
const m0 = matrix[0];
|
||
const m1 = matrix[1];
|
||
const m2 = matrix[2];
|
||
const m3 = matrix[3];
|
||
const a = m0 ** 2 + m1 ** 2;
|
||
const b = m0 * m2 + m1 * m3;
|
||
const c = m2 ** 2 + m3 ** 2;
|
||
const first = (a + c) / 2;
|
||
const second = Math.sqrt(first ** 2 - (a * c - b ** 2));
|
||
output[0] = Math.sqrt(first + second || 1);
|
||
output[1] = Math.sqrt(first - second || 1);
|
||
}
|
||
static normalizeRect(rect) {
|
||
const r = rect.slice(0);
|
||
if (rect[0] > rect[2]) {
|
||
r[0] = rect[2];
|
||
r[2] = rect[0];
|
||
}
|
||
if (rect[1] > rect[3]) {
|
||
r[1] = rect[3];
|
||
r[3] = rect[1];
|
||
}
|
||
return r;
|
||
}
|
||
static intersect(rect1, rect2) {
|
||
const xLow = Math.max(Math.min(rect1[0], rect1[2]), Math.min(rect2[0], rect2[2]));
|
||
const xHigh = Math.min(Math.max(rect1[0], rect1[2]), Math.max(rect2[0], rect2[2]));
|
||
if (xLow > xHigh) {
|
||
return null;
|
||
}
|
||
const yLow = Math.max(Math.min(rect1[1], rect1[3]), Math.min(rect2[1], rect2[3]));
|
||
const yHigh = Math.min(Math.max(rect1[1], rect1[3]), Math.max(rect2[1], rect2[3]));
|
||
if (yLow > yHigh) {
|
||
return null;
|
||
}
|
||
return [xLow, yLow, xHigh, yHigh];
|
||
}
|
||
static pointBoundingBox(x, y, minMax) {
|
||
minMax[0] = Math.min(minMax[0], x);
|
||
minMax[1] = Math.min(minMax[1], y);
|
||
minMax[2] = Math.max(minMax[2], x);
|
||
minMax[3] = Math.max(minMax[3], y);
|
||
}
|
||
static rectBoundingBox(x0, y0, x1, y1, minMax) {
|
||
minMax[0] = Math.min(minMax[0], x0, x1);
|
||
minMax[1] = Math.min(minMax[1], y0, y1);
|
||
minMax[2] = Math.max(minMax[2], x0, x1);
|
||
minMax[3] = Math.max(minMax[3], y0, y1);
|
||
}
|
||
static #getExtremumOnCurve(x0, x1, x2, x3, y0, y1, y2, y3, t, minMax) {
|
||
if (t <= 0 || t >= 1) {
|
||
return;
|
||
}
|
||
const mt = 1 - t;
|
||
const tt = t * t;
|
||
const ttt = tt * t;
|
||
const x = mt * (mt * (mt * x0 + 3 * t * x1) + 3 * tt * x2) + ttt * x3;
|
||
const y = mt * (mt * (mt * y0 + 3 * t * y1) + 3 * tt * y2) + ttt * y3;
|
||
minMax[0] = Math.min(minMax[0], x);
|
||
minMax[1] = Math.min(minMax[1], y);
|
||
minMax[2] = Math.max(minMax[2], x);
|
||
minMax[3] = Math.max(minMax[3], y);
|
||
}
|
||
static #getExtremum(x0, x1, x2, x3, y0, y1, y2, y3, a, b, c, minMax) {
|
||
if (Math.abs(a) < 1e-12) {
|
||
if (Math.abs(b) >= 1e-12) {
|
||
this.#getExtremumOnCurve(x0, x1, x2, x3, y0, y1, y2, y3, -c / b, minMax);
|
||
}
|
||
return;
|
||
}
|
||
const delta = b ** 2 - 4 * c * a;
|
||
if (delta < 0) {
|
||
return;
|
||
}
|
||
const sqrtDelta = Math.sqrt(delta);
|
||
const a2 = 2 * a;
|
||
this.#getExtremumOnCurve(x0, x1, x2, x3, y0, y1, y2, y3, (-b + sqrtDelta) / a2, minMax);
|
||
this.#getExtremumOnCurve(x0, x1, x2, x3, y0, y1, y2, y3, (-b - sqrtDelta) / a2, minMax);
|
||
}
|
||
static bezierBoundingBox(x0, y0, x1, y1, x2, y2, x3, y3, minMax) {
|
||
minMax[0] = Math.min(minMax[0], x0, x3);
|
||
minMax[1] = Math.min(minMax[1], y0, y3);
|
||
minMax[2] = Math.max(minMax[2], x0, x3);
|
||
minMax[3] = Math.max(minMax[3], y0, y3);
|
||
this.#getExtremum(x0, x1, x2, x3, y0, y1, y2, y3, 3 * (-x0 + 3 * (x1 - x2) + x3), 6 * (x0 - 2 * x1 + x2), 3 * (x1 - x0), minMax);
|
||
this.#getExtremum(x0, x1, x2, x3, y0, y1, y2, y3, 3 * (-y0 + 3 * (y1 - y2) + y3), 6 * (y0 - 2 * y1 + y2), 3 * (y1 - y0), minMax);
|
||
}
|
||
}
|
||
const PDFStringTranslateTable = (/* unused pure expression or super */ null && ([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2d8, 0x2c7, 0x2c6, 0x2d9, 0x2dd, 0x2db, 0x2da, 0x2dc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018, 0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x141, 0x152, 0x160, 0x178, 0x17d, 0x131, 0x142, 0x153, 0x161, 0x17e, 0, 0x20ac]));
|
||
function stringToPDFString(str, keepEscapeSequence = false) {
|
||
if (str[0] >= "\xEF") {
|
||
let encoding;
|
||
if (str[0] === "\xFE" && str[1] === "\xFF") {
|
||
encoding = "utf-16be";
|
||
if (str.length % 2 === 1) {
|
||
str = str.slice(0, -1);
|
||
}
|
||
} else if (str[0] === "\xFF" && str[1] === "\xFE") {
|
||
encoding = "utf-16le";
|
||
if (str.length % 2 === 1) {
|
||
str = str.slice(0, -1);
|
||
}
|
||
} else if (str[0] === "\xEF" && str[1] === "\xBB" && str[2] === "\xBF") {
|
||
encoding = "utf-8";
|
||
}
|
||
if (encoding) {
|
||
try {
|
||
const decoder = new TextDecoder(encoding, {
|
||
fatal: true
|
||
});
|
||
const buffer = stringToBytes(str);
|
||
const decoded = decoder.decode(buffer);
|
||
if (keepEscapeSequence || !decoded.includes("\x1b")) {
|
||
return decoded;
|
||
}
|
||
return decoded.replaceAll(/\x1b[^\x1b]*(?:\x1b|$)/g, "");
|
||
} catch (ex) {
|
||
warn(`stringToPDFString: "${ex}".`);
|
||
}
|
||
}
|
||
}
|
||
const strBuf = [];
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const charCode = str.charCodeAt(i);
|
||
if (!keepEscapeSequence && charCode === 0x1b) {
|
||
while (++i < ii && str.charCodeAt(i) !== 0x1b) {}
|
||
continue;
|
||
}
|
||
const code = PDFStringTranslateTable[charCode];
|
||
strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
|
||
}
|
||
return strBuf.join("");
|
||
}
|
||
function stringToUTF8String(str) {
|
||
return decodeURIComponent(escape(str));
|
||
}
|
||
function utf8StringToString(str) {
|
||
return unescape(encodeURIComponent(str));
|
||
}
|
||
function isArrayEqual(arr1, arr2) {
|
||
if (arr1.length !== arr2.length) {
|
||
return false;
|
||
}
|
||
for (let i = 0, ii = arr1.length; i < ii; i++) {
|
||
if (arr1[i] !== arr2[i]) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
function getModificationDate(date = new Date()) {
|
||
if (!(date instanceof Date)) {
|
||
date = new Date(date);
|
||
}
|
||
const buffer = [date.getUTCFullYear().toString(), (date.getUTCMonth() + 1).toString().padStart(2, "0"), date.getUTCDate().toString().padStart(2, "0"), date.getUTCHours().toString().padStart(2, "0"), date.getUTCMinutes().toString().padStart(2, "0"), date.getUTCSeconds().toString().padStart(2, "0")];
|
||
return buffer.join("");
|
||
}
|
||
let NormalizeRegex = null;
|
||
let NormalizationMap = null;
|
||
function normalizeUnicode(str) {
|
||
if (!NormalizeRegex) {
|
||
NormalizeRegex = /([\u00a0\u00b5\u037e\u0eb3\u2000-\u200a\u202f\u2126\ufb00-\ufb04\ufb06\ufb20-\ufb36\ufb38-\ufb3c\ufb3e\ufb40-\ufb41\ufb43-\ufb44\ufb46-\ufba1\ufba4-\ufba9\ufbae-\ufbb1\ufbd3-\ufbdc\ufbde-\ufbe7\ufbea-\ufbf8\ufbfc-\ufbfd\ufc00-\ufc5d\ufc64-\ufcf1\ufcf5-\ufd3d\ufd88\ufdf4\ufdfa-\ufdfb\ufe71\ufe77\ufe79\ufe7b\ufe7d]+)|(\ufb05+)/gu;
|
||
NormalizationMap = new Map([["ſt", "ſt"]]);
|
||
}
|
||
return str.replaceAll(NormalizeRegex, (_, p1, p2) => p1 ? p1.normalize("NFKC") : NormalizationMap.get(p2));
|
||
}
|
||
function getUuid() {
|
||
if (typeof crypto.randomUUID === "function") {
|
||
return crypto.randomUUID();
|
||
}
|
||
const buf = new Uint8Array(32);
|
||
crypto.getRandomValues(buf);
|
||
return bytesToString(buf);
|
||
}
|
||
const AnnotationPrefix = "pdfjs_internal_id_";
|
||
function _isValidExplicitDest(validRef, validName, dest) {
|
||
if (!Array.isArray(dest) || dest.length < 2) {
|
||
return false;
|
||
}
|
||
const [page, zoom, ...args] = dest;
|
||
if (!validRef(page) && !Number.isInteger(page)) {
|
||
return false;
|
||
}
|
||
if (!validName(zoom)) {
|
||
return false;
|
||
}
|
||
const argsLen = args.length;
|
||
let allowNull = true;
|
||
switch (zoom.name) {
|
||
case "XYZ":
|
||
if (argsLen < 2 || argsLen > 3) {
|
||
return false;
|
||
}
|
||
break;
|
||
case "Fit":
|
||
case "FitB":
|
||
return argsLen === 0;
|
||
case "FitH":
|
||
case "FitBH":
|
||
case "FitV":
|
||
case "FitBV":
|
||
if (argsLen > 1) {
|
||
return false;
|
||
}
|
||
break;
|
||
case "FitR":
|
||
if (argsLen !== 4) {
|
||
return false;
|
||
}
|
||
allowNull = false;
|
||
break;
|
||
default:
|
||
return false;
|
||
}
|
||
for (const arg of args) {
|
||
if (typeof arg === "number" || allowNull && arg === null) {
|
||
continue;
|
||
}
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
const makeArr = () => [];
|
||
const makeMap = () => new Map();
|
||
const makeObj = () => Object.create(null);
|
||
|
||
;// ./src/core/primitives.js
|
||
|
||
const CIRCULAR_REF = Symbol("CIRCULAR_REF");
|
||
const EOF = Symbol("EOF");
|
||
let CmdCache = Object.create(null);
|
||
let NameCache = Object.create(null);
|
||
let RefCache = Object.create(null);
|
||
function clearPrimitiveCaches() {
|
||
CmdCache = Object.create(null);
|
||
NameCache = Object.create(null);
|
||
RefCache = Object.create(null);
|
||
}
|
||
class Name {
|
||
constructor(name) {
|
||
this.name = name;
|
||
}
|
||
static get(name) {
|
||
return NameCache[name] ||= new Name(name);
|
||
}
|
||
}
|
||
class Cmd {
|
||
constructor(cmd) {
|
||
this.cmd = cmd;
|
||
}
|
||
static get(cmd) {
|
||
return CmdCache[cmd] ||= new Cmd(cmd);
|
||
}
|
||
}
|
||
const nonSerializable = function nonSerializableClosure() {
|
||
return nonSerializable;
|
||
};
|
||
class Dict {
|
||
__nonSerializable__ = nonSerializable;
|
||
#map = new Map();
|
||
objId = null;
|
||
suppressEncryption = false;
|
||
xref;
|
||
constructor(xref = null) {
|
||
this.xref = xref;
|
||
}
|
||
assignXref(newXref) {
|
||
this.xref = newXref;
|
||
}
|
||
get size() {
|
||
return this.#map.size;
|
||
}
|
||
#getValue(isAsync, key1, key2, key3) {
|
||
let value = this.#map.get(key1);
|
||
if (value === undefined && key2 !== undefined) {
|
||
value = this.#map.get(key2);
|
||
if (value === undefined && key3 !== undefined) {
|
||
value = this.#map.get(key3);
|
||
}
|
||
}
|
||
if (value instanceof Ref && this.xref) {
|
||
return isAsync ? this.xref.fetchAsync(value, this.suppressEncryption) : this.xref.fetch(value, this.suppressEncryption);
|
||
}
|
||
return value;
|
||
}
|
||
get(key1, key2, key3) {
|
||
return this.#getValue(false, key1, key2, key3);
|
||
}
|
||
async getAsync(key1, key2, key3) {
|
||
return this.#getValue(true, key1, key2, key3);
|
||
}
|
||
getArray(key1, key2, key3) {
|
||
let value = this.#getValue(false, key1, key2, key3);
|
||
if (Array.isArray(value)) {
|
||
value = value.slice();
|
||
for (let i = 0, ii = value.length; i < ii; i++) {
|
||
if (value[i] instanceof Ref && this.xref) {
|
||
value[i] = this.xref.fetch(value[i], this.suppressEncryption);
|
||
}
|
||
}
|
||
}
|
||
return value;
|
||
}
|
||
getRaw(key) {
|
||
return this.#map.get(key);
|
||
}
|
||
getKeys() {
|
||
return this.#map.keys();
|
||
}
|
||
getRawValues() {
|
||
return this.#map.values();
|
||
}
|
||
getRawEntries() {
|
||
return this.#map.entries();
|
||
}
|
||
set(key, value) {
|
||
this.#map.set(key, value);
|
||
}
|
||
setIfNotExists(key, value) {
|
||
if (!this.has(key)) {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
setIfNumber(key, value) {
|
||
if (typeof value === "number") {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
setIfArray(key, value) {
|
||
if (Array.isArray(value) || ArrayBuffer.isView(value)) {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
setIfDefined(key, value) {
|
||
if (value !== undefined && value !== null) {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
setIfName(key, value) {
|
||
if (typeof value === "string") {
|
||
this.set(key, Name.get(value));
|
||
} else if (value instanceof Name) {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
setIfDict(key, value) {
|
||
if (value instanceof Dict) {
|
||
this.set(key, value);
|
||
}
|
||
}
|
||
has(key) {
|
||
return this.#map.has(key);
|
||
}
|
||
*[Symbol.iterator]() {
|
||
for (const [key, value] of this.#map) {
|
||
yield [key, value instanceof Ref && this.xref ? this.xref.fetch(value, this.suppressEncryption) : value];
|
||
}
|
||
}
|
||
static get empty() {
|
||
const emptyDict = new Dict(null);
|
||
emptyDict.set = (key, value) => {
|
||
unreachable("Should not call `set` on the empty dictionary.");
|
||
};
|
||
return shadow(this, "empty", emptyDict);
|
||
}
|
||
static merge({
|
||
xref,
|
||
dictArray,
|
||
mergeSubDicts = false
|
||
}) {
|
||
const mergedDict = new Dict(xref),
|
||
properties = new Map();
|
||
for (const dict of dictArray) {
|
||
if (!(dict instanceof Dict)) {
|
||
continue;
|
||
}
|
||
for (const [key, value] of dict.getRawEntries()) {
|
||
let property = properties.get(key);
|
||
if (property === undefined) {
|
||
property = [];
|
||
properties.set(key, property);
|
||
} else if (!mergeSubDicts || !(value instanceof Dict)) {
|
||
continue;
|
||
}
|
||
property.push(value);
|
||
}
|
||
}
|
||
for (const [name, values] of properties) {
|
||
if (values.length === 1 || !(values[0] instanceof Dict)) {
|
||
mergedDict.set(name, values[0]);
|
||
continue;
|
||
}
|
||
const subDict = new Dict(xref);
|
||
for (const dict of values) {
|
||
for (const [key, value] of dict.getRawEntries()) {
|
||
subDict.setIfNotExists(key, value);
|
||
}
|
||
}
|
||
if (subDict.size > 0) {
|
||
mergedDict.set(name, subDict);
|
||
}
|
||
}
|
||
properties.clear();
|
||
return mergedDict.size > 0 ? mergedDict : Dict.empty;
|
||
}
|
||
clone() {
|
||
const dict = new Dict(this.xref);
|
||
for (const [key, value] of this.#map) {
|
||
dict.set(key, value);
|
||
}
|
||
return dict;
|
||
}
|
||
delete(key) {
|
||
this.#map.delete(key);
|
||
}
|
||
}
|
||
class Ref {
|
||
constructor(num, gen) {
|
||
this.num = num;
|
||
this.gen = gen;
|
||
}
|
||
toString() {
|
||
if (this.gen === 0) {
|
||
return `${this.num}R`;
|
||
}
|
||
return `${this.num}R${this.gen}`;
|
||
}
|
||
static fromString(str) {
|
||
const ref = RefCache[str];
|
||
if (ref) {
|
||
return ref;
|
||
}
|
||
const m = /^(\d+)R(\d*)$/.exec(str);
|
||
if (!m || m[1] === "0") {
|
||
return null;
|
||
}
|
||
return RefCache[str] = new Ref(parseInt(m[1], 10), !m[2] ? 0 : parseInt(m[2], 10));
|
||
}
|
||
static get(num, gen) {
|
||
const key = gen === 0 ? `${num}R` : `${num}R${gen}`;
|
||
return RefCache[key] ||= new Ref(num, gen);
|
||
}
|
||
}
|
||
class RefSet {
|
||
constructor(parent = null) {
|
||
this._set = new Set(parent?._set);
|
||
}
|
||
has(ref) {
|
||
return this._set.has(ref.toString());
|
||
}
|
||
put(ref) {
|
||
this._set.add(ref.toString());
|
||
}
|
||
remove(ref) {
|
||
this._set.delete(ref.toString());
|
||
}
|
||
[Symbol.iterator]() {
|
||
return this._set.values();
|
||
}
|
||
clear() {
|
||
this._set.clear();
|
||
}
|
||
}
|
||
class RefSetCache {
|
||
_map = new Map();
|
||
get size() {
|
||
return this._map.size;
|
||
}
|
||
get(ref) {
|
||
return this._map.get(ref.toString());
|
||
}
|
||
has(ref) {
|
||
return this._map.has(ref.toString());
|
||
}
|
||
put(ref, obj) {
|
||
this._map.set(ref.toString(), obj);
|
||
}
|
||
putAlias(ref, aliasRef) {
|
||
this._map.set(ref.toString(), this.get(aliasRef));
|
||
}
|
||
[Symbol.iterator]() {
|
||
return this._map.values();
|
||
}
|
||
clear() {
|
||
this._map.clear();
|
||
}
|
||
*values() {
|
||
yield* this._map.values();
|
||
}
|
||
*items() {
|
||
for (const [ref, value] of this._map) {
|
||
yield [Ref.fromString(ref), value];
|
||
}
|
||
}
|
||
*keys() {
|
||
for (const ref of this._map.keys()) {
|
||
yield Ref.fromString(ref);
|
||
}
|
||
}
|
||
}
|
||
function isName(v, name) {
|
||
return v instanceof Name && (name === undefined || v.name === name);
|
||
}
|
||
function isCmd(v, cmd) {
|
||
return v instanceof Cmd && (cmd === undefined || v.cmd === cmd);
|
||
}
|
||
function isDict(v, type) {
|
||
return v instanceof Dict && (type === undefined || isName(v.get("Type"), type));
|
||
}
|
||
function isRefsEqual(v1, v2) {
|
||
return v1.num === v2.num && v1.gen === v2.gen;
|
||
}
|
||
|
||
;// ./src/core/base_stream.js
|
||
|
||
class BaseStream {
|
||
get length() {
|
||
unreachable("Abstract getter `length` accessed");
|
||
}
|
||
get isEmpty() {
|
||
unreachable("Abstract getter `isEmpty` accessed");
|
||
}
|
||
get isDataLoaded() {
|
||
return shadow(this, "isDataLoaded", true);
|
||
}
|
||
getByte() {
|
||
unreachable("Abstract method `getByte` called");
|
||
}
|
||
getBytes(length) {
|
||
unreachable("Abstract method `getBytes` called");
|
||
}
|
||
async getImageData(length, decoderOptions) {
|
||
return this.getBytes(length, decoderOptions);
|
||
}
|
||
async asyncGetBytes() {
|
||
unreachable("Abstract method `asyncGetBytes` called");
|
||
}
|
||
get isAsync() {
|
||
return false;
|
||
}
|
||
get isAsyncDecoder() {
|
||
return false;
|
||
}
|
||
get isImageStream() {
|
||
return false;
|
||
}
|
||
get canAsyncDecodeImageFromBuffer() {
|
||
return false;
|
||
}
|
||
async getTransferableImage() {
|
||
return null;
|
||
}
|
||
peekByte() {
|
||
const peekedByte = this.getByte();
|
||
if (peekedByte !== -1) {
|
||
this.pos--;
|
||
}
|
||
return peekedByte;
|
||
}
|
||
peekBytes(length) {
|
||
const bytes = this.getBytes(length);
|
||
this.pos -= bytes.length;
|
||
return bytes;
|
||
}
|
||
getUint16() {
|
||
const b0 = this.getByte();
|
||
const b1 = this.getByte();
|
||
if (b0 === -1 || b1 === -1) {
|
||
return -1;
|
||
}
|
||
return (b0 << 8) + b1;
|
||
}
|
||
getInt32() {
|
||
const b0 = this.getByte();
|
||
const b1 = this.getByte();
|
||
const b2 = this.getByte();
|
||
const b3 = this.getByte();
|
||
return (b0 << 24) + (b1 << 16) + (b2 << 8) + b3;
|
||
}
|
||
getByteRange(begin, end) {
|
||
unreachable("Abstract method `getByteRange` called");
|
||
}
|
||
getString(length) {
|
||
return bytesToString(this.getBytes(length));
|
||
}
|
||
skip(n) {
|
||
this.pos += n || 1;
|
||
}
|
||
reset() {
|
||
unreachable("Abstract method `reset` called");
|
||
}
|
||
moveStart() {
|
||
unreachable("Abstract method `moveStart` called");
|
||
}
|
||
makeSubStream(start, length, dict = null) {
|
||
unreachable("Abstract method `makeSubStream` called");
|
||
}
|
||
getBaseStreams() {
|
||
return null;
|
||
}
|
||
getOriginalStream() {
|
||
return this.stream?.getOriginalStream() || this;
|
||
}
|
||
}
|
||
|
||
;// ./src/core/core_utils.js
|
||
/* unused harmony import specifier */ var core_utils_assert;
|
||
/* unused harmony import specifier */ var core_utils_Util;
|
||
/* unused harmony import specifier */ var core_utils_stringToPDFString;
|
||
/* unused harmony import specifier */ var core_utils_objectSize;
|
||
/* unused harmony import specifier */ var core_utils_warn;
|
||
/* unused harmony import specifier */ var core_utils_AnnotationEditorPrefix;
|
||
/* unused harmony import specifier */ var core_utils_makeArr;
|
||
/* unused harmony import specifier */ var core_utils_RefSet;
|
||
/* unused harmony import specifier */ var core_utils_Dict;
|
||
/* unused harmony import specifier */ var core_utils_Ref;
|
||
/* unused harmony import specifier */ var core_utils_isName;
|
||
/* unused harmony import specifier */ var core_utils_BaseStream;
|
||
|
||
|
||
|
||
const PDF_VERSION_REGEXP = /^[1-9]\.\d$/;
|
||
const MAX_INT_32 = (/* unused pure expression or super */ null && (2 ** 31 - 1));
|
||
const IDENTITY_MATRIX = (/* unused pure expression or super */ null && ([1, 0, 0, 1, 0, 0]));
|
||
const RESOURCES_KEYS_OPERATOR_LIST = (/* unused pure expression or super */ null && (["ColorSpace", "ExtGState", "Font", "Pattern", "Properties", "Shading", "XObject"]));
|
||
const RESOURCES_KEYS_TEXT_CONTENT = (/* unused pure expression or super */ null && (["ExtGState", "Font", "Properties", "XObject"]));
|
||
function getLookupTableFactory(initializer) {
|
||
let lookup;
|
||
return function () {
|
||
if (initializer) {
|
||
lookup = Object.create(null);
|
||
initializer(lookup);
|
||
initializer = null;
|
||
}
|
||
return lookup;
|
||
};
|
||
}
|
||
class MissingDataException extends BaseException {
|
||
constructor(begin, end) {
|
||
super(`Missing data [${begin}, ${end})`, "MissingDataException");
|
||
this.begin = begin;
|
||
this.end = end;
|
||
}
|
||
}
|
||
class ParserEOFException extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "ParserEOFException");
|
||
}
|
||
}
|
||
class XRefEntryException extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "XRefEntryException");
|
||
}
|
||
}
|
||
class XRefParseException extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "XRefParseException");
|
||
}
|
||
}
|
||
function arrayBuffersToBytes(arr) {
|
||
const length = arr.length;
|
||
if (length === 0) {
|
||
return new Uint8Array(0);
|
||
}
|
||
if (length === 1) {
|
||
return new Uint8Array(arr[0]);
|
||
}
|
||
let dataLength = 0;
|
||
for (let i = 0; i < length; i++) {
|
||
dataLength += arr[i].byteLength;
|
||
}
|
||
const data = new Uint8Array(dataLength);
|
||
let pos = 0;
|
||
for (let i = 0; i < length; i++) {
|
||
const item = new Uint8Array(arr[i]);
|
||
data.set(item, pos);
|
||
pos += item.byteLength;
|
||
}
|
||
return data;
|
||
}
|
||
async function fetchBinaryData(url) {
|
||
const response = await fetch(url);
|
||
if (!response.ok) {
|
||
throw new Error(`Failed to fetch file "${url}" with "${response.statusText}".`);
|
||
}
|
||
return response.bytes();
|
||
}
|
||
function getInheritableProperty({
|
||
dict,
|
||
key,
|
||
getArray = false,
|
||
stopWhenFound = true
|
||
}) {
|
||
let values;
|
||
const visited = new core_utils_RefSet();
|
||
while (dict instanceof core_utils_Dict && !(dict.objId && visited.has(dict.objId))) {
|
||
if (dict.objId) {
|
||
visited.put(dict.objId);
|
||
}
|
||
const value = getArray ? dict.getArray(key) : dict.get(key);
|
||
if (value !== undefined) {
|
||
if (stopWhenFound) {
|
||
return value;
|
||
}
|
||
(values ||= []).push(value);
|
||
}
|
||
dict = dict.get("Parent");
|
||
}
|
||
return values;
|
||
}
|
||
function getParentToUpdate(dict, ref, xref) {
|
||
const visited = new core_utils_RefSet();
|
||
const firstDict = dict;
|
||
const result = {
|
||
dict: null,
|
||
ref: null
|
||
};
|
||
while (dict instanceof core_utils_Dict && !visited.has(ref)) {
|
||
visited.put(ref);
|
||
if (dict.has("T")) {
|
||
break;
|
||
}
|
||
ref = dict.getRaw("Parent");
|
||
if (!(ref instanceof core_utils_Ref)) {
|
||
return result;
|
||
}
|
||
dict = xref.fetch(ref);
|
||
}
|
||
if (dict instanceof core_utils_Dict && dict !== firstDict) {
|
||
result.dict = dict;
|
||
result.ref = ref;
|
||
}
|
||
return result;
|
||
}
|
||
function deepCompare(a, b) {
|
||
if (a === b) {
|
||
return true;
|
||
}
|
||
if (a instanceof core_utils_Dict && b instanceof core_utils_Dict) {
|
||
if (a.size !== b.size) {
|
||
return false;
|
||
}
|
||
for (const [key, value1] of a.getRawEntries()) {
|
||
const value2 = b.getRaw(key);
|
||
if (value2 === undefined || !deepCompare(value1, value2)) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
if (Array.isArray(a) && Array.isArray(b)) {
|
||
if (a.length !== b.length) {
|
||
return false;
|
||
}
|
||
for (let i = 0, ii = a.length; i < ii; i++) {
|
||
if (!deepCompare(a[i], b[i])) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
const ROMAN_NUMBER_MAP = (/* unused pure expression or super */ null && (["", "C", "CC", "CCC", "CD", "D", "DC", "DCC", "DCCC", "CM", "", "X", "XX", "XXX", "XL", "L", "LX", "LXX", "LXXX", "XC", "", "I", "II", "III", "IV", "V", "VI", "VII", "VIII", "IX"]));
|
||
function toRomanNumerals(number, lowerCase = false) {
|
||
core_utils_assert(Number.isInteger(number) && number > 0, "The number should be a positive integer.");
|
||
const roman = "M".repeat(number / 1000 | 0) + ROMAN_NUMBER_MAP[number % 1000 / 100 | 0] + ROMAN_NUMBER_MAP[10 + (number % 100 / 10 | 0)] + ROMAN_NUMBER_MAP[20 + number % 10];
|
||
return lowerCase ? roman.toLowerCase() : roman;
|
||
}
|
||
function isWhiteSpace(ch) {
|
||
return ch === 0x20 || ch === 0x09 || ch === 0x0d || ch === 0x0a;
|
||
}
|
||
function isBooleanArray(arr, len) {
|
||
return Array.isArray(arr) && (len === null || arr.length === len) && arr.every(x => typeof x === "boolean");
|
||
}
|
||
function isNumberArray(arr, len) {
|
||
if (Array.isArray(arr)) {
|
||
return (len === null || arr.length === len) && arr.every(x => typeof x === "number");
|
||
}
|
||
return ArrayBuffer.isView(arr) && !(arr instanceof BigInt64Array || arr instanceof BigUint64Array) && (len === null || arr.length === len);
|
||
}
|
||
function lookupMatrix(arr, fallback) {
|
||
return isNumberArray(arr, 6) ? arr : fallback;
|
||
}
|
||
function lookupRect(arr, fallback) {
|
||
return isNumberArray(arr, 4) ? arr : fallback;
|
||
}
|
||
function lookupNormalRect(arr, fallback) {
|
||
return isNumberArray(arr, 4) ? core_utils_Util.normalizeRect(arr) : fallback;
|
||
}
|
||
function parseXFAPath(path) {
|
||
const positionPattern = /(.+)\[(\d+)\]$/;
|
||
return path.split(".").map(component => {
|
||
const m = component.match(positionPattern);
|
||
if (m) {
|
||
return {
|
||
name: m[1],
|
||
pos: parseInt(m[2], 10)
|
||
};
|
||
}
|
||
return {
|
||
name: component,
|
||
pos: 0
|
||
};
|
||
});
|
||
}
|
||
function escapePDFName(str) {
|
||
const buffer = [];
|
||
let start = 0;
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const char = str.charCodeAt(i);
|
||
if (char < 0x21 || char > 0x7e || char === 0x23 || char === 0x28 || char === 0x29 || char === 0x3c || char === 0x3e || char === 0x5b || char === 0x5d || char === 0x7b || char === 0x7d || char === 0x2f || char === 0x25) {
|
||
if (start < i) {
|
||
buffer.push(str.substring(start, i));
|
||
}
|
||
buffer.push(`#${char.toString(16)}`);
|
||
start = i + 1;
|
||
}
|
||
}
|
||
if (buffer.length === 0) {
|
||
return str;
|
||
}
|
||
if (start < str.length) {
|
||
buffer.push(str.substring(start, str.length));
|
||
}
|
||
return buffer.join("");
|
||
}
|
||
function escapeString(str) {
|
||
return str.replaceAll(/([()\\\n\r])/g, match => {
|
||
if (match === "\n") {
|
||
return "\\n";
|
||
} else if (match === "\r") {
|
||
return "\\r";
|
||
}
|
||
return `\\${match}`;
|
||
});
|
||
}
|
||
function _collectJS(entry, xref, list, parents) {
|
||
if (!entry) {
|
||
return;
|
||
}
|
||
let parent = null;
|
||
if (entry instanceof core_utils_Ref) {
|
||
if (parents.has(entry)) {
|
||
return;
|
||
}
|
||
parent = entry;
|
||
parents.put(parent);
|
||
entry = xref.fetch(entry);
|
||
}
|
||
if (Array.isArray(entry)) {
|
||
for (const element of entry) {
|
||
_collectJS(element, xref, list, parents);
|
||
}
|
||
} else if (entry instanceof core_utils_Dict) {
|
||
if (core_utils_isName(entry.get("S"), "JavaScript")) {
|
||
const js = entry.get("JS");
|
||
let code;
|
||
if (js instanceof core_utils_BaseStream) {
|
||
code = js.getString();
|
||
} else if (typeof js === "string") {
|
||
code = js;
|
||
}
|
||
code &&= core_utils_stringToPDFString(code, true).replaceAll("\x00", "");
|
||
if (code) {
|
||
list.push(code.trim());
|
||
}
|
||
}
|
||
_collectJS(entry.getRaw("Next"), xref, list, parents);
|
||
}
|
||
if (parent) {
|
||
parents.remove(parent);
|
||
}
|
||
}
|
||
function collectActions(xref, dict, eventType) {
|
||
const actions = Object.create(null);
|
||
const additionalActionsDicts = getInheritableProperty({
|
||
dict,
|
||
key: "AA",
|
||
stopWhenFound: false
|
||
});
|
||
if (additionalActionsDicts) {
|
||
for (let i = additionalActionsDicts.length - 1; i >= 0; i--) {
|
||
const additionalActions = additionalActionsDicts[i];
|
||
if (!(additionalActions instanceof core_utils_Dict)) {
|
||
continue;
|
||
}
|
||
for (const [key, rawActionDict] of additionalActions.getRawEntries()) {
|
||
const action = eventType[key];
|
||
if (!action) {
|
||
continue;
|
||
}
|
||
const parents = new core_utils_RefSet();
|
||
const list = [];
|
||
_collectJS(rawActionDict, xref, list, parents);
|
||
if (list.length > 0) {
|
||
actions[action] = list;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (dict.has("A")) {
|
||
const actionDict = dict.get("A");
|
||
const parents = new core_utils_RefSet();
|
||
const list = [];
|
||
_collectJS(actionDict, xref, list, parents);
|
||
if (list.length > 0) {
|
||
actions.Action = list;
|
||
}
|
||
}
|
||
return core_utils_objectSize(actions) > 0 ? actions : null;
|
||
}
|
||
const XMLEntities = {
|
||
0x3c: "<",
|
||
0x3e: ">",
|
||
0x26: "&",
|
||
0x22: """,
|
||
0x27: "'"
|
||
};
|
||
function* codePointIter(str) {
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const char = str.codePointAt(i);
|
||
if (char > 0xd7ff && (char < 0xe000 || char > 0xfffd)) {
|
||
i++;
|
||
}
|
||
yield char;
|
||
}
|
||
}
|
||
function encodeToXmlString(str) {
|
||
const buffer = [];
|
||
let start = 0;
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const char = str.codePointAt(i);
|
||
if (0x20 <= char && char <= 0x7e) {
|
||
const entity = XMLEntities[char];
|
||
if (entity) {
|
||
if (start < i) {
|
||
buffer.push(str.substring(start, i));
|
||
}
|
||
buffer.push(entity);
|
||
start = i + 1;
|
||
}
|
||
} else {
|
||
if (start < i) {
|
||
buffer.push(str.substring(start, i));
|
||
}
|
||
buffer.push(`&#x${char.toString(16).toUpperCase()};`);
|
||
if (char > 0xd7ff && (char < 0xe000 || char > 0xfffd)) {
|
||
i++;
|
||
}
|
||
start = i + 1;
|
||
}
|
||
}
|
||
if (buffer.length === 0) {
|
||
return str;
|
||
}
|
||
if (start < str.length) {
|
||
buffer.push(str.substring(start, str.length));
|
||
}
|
||
return buffer.join("");
|
||
}
|
||
function validateFontName(fontFamily, mustWarn = false) {
|
||
const m = /^("|').*("|')$/.exec(fontFamily);
|
||
if (m && m[1] === m[2]) {
|
||
const re = new RegExp(`[^\\\\]${m[1]}`);
|
||
if (re.test(fontFamily.slice(1, -1))) {
|
||
if (mustWarn) {
|
||
core_utils_warn(`FontFamily contains unescaped ${m[1]}: ${fontFamily}.`);
|
||
}
|
||
return false;
|
||
}
|
||
} else {
|
||
for (const ident of fontFamily.split(/[ \t]+/)) {
|
||
if (/^(\d|(-(\d|-)))/.test(ident) || !/^[\w-\\]+$/.test(ident)) {
|
||
if (mustWarn) {
|
||
core_utils_warn(`FontFamily contains invalid <custom-ident>: ${fontFamily}.`);
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
function validateCSSFont(cssFontInfo) {
|
||
const DEFAULT_CSS_FONT_OBLIQUE = "14";
|
||
const DEFAULT_CSS_FONT_WEIGHT = "400";
|
||
const CSS_FONT_WEIGHT_VALUES = new Set(["100", "200", "300", "400", "500", "600", "700", "800", "900", "1000", "normal", "bold", "bolder", "lighter"]);
|
||
const {
|
||
fontFamily,
|
||
fontWeight,
|
||
italicAngle
|
||
} = cssFontInfo;
|
||
if (!validateFontName(fontFamily, true)) {
|
||
return false;
|
||
}
|
||
const weight = fontWeight ? fontWeight.toString() : "";
|
||
cssFontInfo.fontWeight = CSS_FONT_WEIGHT_VALUES.has(weight) ? weight : DEFAULT_CSS_FONT_WEIGHT;
|
||
const angle = parseFloat(italicAngle);
|
||
cssFontInfo.italicAngle = isNaN(angle) || angle < -90 || angle > 90 ? DEFAULT_CSS_FONT_OBLIQUE : italicAngle.toString();
|
||
return true;
|
||
}
|
||
function recoverJsURL(str) {
|
||
const URL_OPEN_METHODS = ["app.launchURL", "window.open", "xfa.host.gotoURL"];
|
||
const regex = new RegExp("^\\s*(" + URL_OPEN_METHODS.join("|").replaceAll(".", "\\.") + ")\\((?:'|\")([^'\"]*)(?:'|\")(?:,\\s*(\\w+)\\)|\\))", "i");
|
||
const jsUrl = regex.exec(str);
|
||
if (jsUrl?.[2]) {
|
||
return {
|
||
url: jsUrl[2],
|
||
newWindow: jsUrl[1] === "app.launchURL" && jsUrl[3] === "true"
|
||
};
|
||
}
|
||
return null;
|
||
}
|
||
function numberToString(value) {
|
||
if (Number.isInteger(value)) {
|
||
return value.toString();
|
||
}
|
||
const roundedValue = Math.round(value * 100);
|
||
if (roundedValue % 100 === 0) {
|
||
return (roundedValue / 100).toString();
|
||
}
|
||
if (roundedValue % 10 === 0) {
|
||
return value.toFixed(1);
|
||
}
|
||
return value.toFixed(2);
|
||
}
|
||
function getNewAnnotationsMap(annotationStorage) {
|
||
if (!annotationStorage) {
|
||
return null;
|
||
}
|
||
const newAnnotationsByPage = new Map();
|
||
for (const [key, value] of annotationStorage) {
|
||
if (!key.startsWith(core_utils_AnnotationEditorPrefix)) {
|
||
continue;
|
||
}
|
||
newAnnotationsByPage.getOrInsertComputed(value.pageIndex, core_utils_makeArr).push(value);
|
||
}
|
||
return newAnnotationsByPage.size > 0 ? newAnnotationsByPage : null;
|
||
}
|
||
function stringToAsciiOrUTF16BE(str) {
|
||
if (str === null || str === undefined) {
|
||
return str;
|
||
}
|
||
return isAscii(str) ? str : stringToUTF16String(str, true);
|
||
}
|
||
function isAscii(str) {
|
||
if (typeof str !== "string") {
|
||
return false;
|
||
}
|
||
return !str || /^[\x00-\x7F]*$/.test(str);
|
||
}
|
||
function stringToUTF16HexString(str) {
|
||
const buf = [];
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const char = str.charCodeAt(i);
|
||
buf.push(core_utils_Util.hexNums[char >> 8 & 0xff], core_utils_Util.hexNums[char & 0xff]);
|
||
}
|
||
return buf.join("");
|
||
}
|
||
function stringToUTF16String(str, bigEndian = false) {
|
||
const buf = [];
|
||
if (bigEndian) {
|
||
buf.push("\xFE\xFF");
|
||
}
|
||
for (let i = 0, ii = str.length; i < ii; i++) {
|
||
const char = str.charCodeAt(i);
|
||
buf.push(String.fromCharCode(char >> 8 & 0xff), String.fromCharCode(char & 0xff));
|
||
}
|
||
return buf.join("");
|
||
}
|
||
function getRotationMatrix(rotation, width, height) {
|
||
switch (rotation) {
|
||
case 90:
|
||
return [0, 1, -1, 0, width, 0];
|
||
case 180:
|
||
return [-1, 0, 0, -1, width, height];
|
||
case 270:
|
||
return [0, -1, 1, 0, 0, height];
|
||
default:
|
||
throw new Error("Invalid rotation");
|
||
}
|
||
}
|
||
function getSizeInBytes(x) {
|
||
return Math.ceil(Math.ceil(Math.log2(1 + x)) / 8);
|
||
}
|
||
|
||
;// ./external/jbig2/jbig2.js
|
||
async function JBig2(moduleArg = {}) {
|
||
var moduleRtn;
|
||
var Module = moduleArg;
|
||
var ENVIRONMENT_IS_WEB = true;
|
||
var ENVIRONMENT_IS_WORKER = false;
|
||
var arguments_ = [];
|
||
var thisProgram = "./this.program";
|
||
var quit_ = (status, toThrow) => {
|
||
throw toThrow;
|
||
};
|
||
var _scriptName = import.meta.url;
|
||
var scriptDirectory = "";
|
||
var readAsync, readBinary;
|
||
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
|
||
try {
|
||
scriptDirectory = new URL(".", _scriptName).href;
|
||
} catch {}
|
||
readAsync = async url => {
|
||
var response = await fetch(url, {
|
||
credentials: "same-origin"
|
||
});
|
||
if (response.ok) {
|
||
return response.arrayBuffer();
|
||
}
|
||
throw new Error(response.status + " : " + response.url);
|
||
};
|
||
} else {}
|
||
var out = console.log.bind(console);
|
||
var err = console.error.bind(console);
|
||
var wasmBinary;
|
||
var ABORT = false;
|
||
var EXITSTATUS;
|
||
var readyPromiseResolve, readyPromiseReject;
|
||
var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
|
||
var HEAP64, HEAPU64;
|
||
var runtimeInitialized = false;
|
||
function updateMemoryViews() {
|
||
var b = wasmMemory.buffer;
|
||
HEAP8 = new Int8Array(b);
|
||
HEAP16 = new Int16Array(b);
|
||
HEAPU8 = new Uint8Array(b);
|
||
HEAPU16 = new Uint16Array(b);
|
||
HEAP32 = new Int32Array(b);
|
||
HEAPU32 = new Uint32Array(b);
|
||
HEAPF32 = new Float32Array(b);
|
||
HEAPF64 = new Float64Array(b);
|
||
HEAP64 = new BigInt64Array(b);
|
||
HEAPU64 = new BigUint64Array(b);
|
||
}
|
||
function preRun() {
|
||
if (Module["preRun"]) {
|
||
if (typeof Module["preRun"] == "function") Module["preRun"] = [Module["preRun"]];
|
||
while (Module["preRun"].length) {
|
||
addOnPreRun(Module["preRun"].shift());
|
||
}
|
||
}
|
||
callRuntimeCallbacks(onPreRuns);
|
||
}
|
||
function initRuntime() {
|
||
runtimeInitialized = true;
|
||
wasmExports["j"]();
|
||
}
|
||
function postRun() {
|
||
if (Module["postRun"]) {
|
||
if (typeof Module["postRun"] == "function") Module["postRun"] = [Module["postRun"]];
|
||
while (Module["postRun"].length) {
|
||
addOnPostRun(Module["postRun"].shift());
|
||
}
|
||
}
|
||
callRuntimeCallbacks(onPostRuns);
|
||
}
|
||
function abort(what) {
|
||
Module["onAbort"]?.(what);
|
||
what = "Aborted(" + what + ")";
|
||
err(what);
|
||
ABORT = true;
|
||
what += ". Build with -sASSERTIONS for more info.";
|
||
var e = new WebAssembly.RuntimeError(what);
|
||
readyPromiseReject?.(e);
|
||
throw e;
|
||
}
|
||
var wasmBinaryFile;
|
||
function getWasmImports() {
|
||
var imports = {
|
||
a: wasmImports
|
||
};
|
||
return imports;
|
||
}
|
||
async function createWasm() {
|
||
function receiveInstance(instance, module) {
|
||
wasmExports = instance.exports;
|
||
assignWasmExports(wasmExports);
|
||
updateMemoryViews();
|
||
return wasmExports;
|
||
}
|
||
var info = getWasmImports();
|
||
return new Promise((resolve, reject) => {
|
||
Module["instantiateWasm"](info, (inst, mod) => {
|
||
resolve(receiveInstance(inst, mod));
|
||
});
|
||
});
|
||
}
|
||
class ExitStatus {
|
||
name = "ExitStatus";
|
||
constructor(status) {
|
||
this.message = `Program terminated with exit(${status})`;
|
||
this.status = status;
|
||
}
|
||
}
|
||
var callRuntimeCallbacks = callbacks => {
|
||
while (callbacks.length > 0) {
|
||
callbacks.shift()(Module);
|
||
}
|
||
};
|
||
var onPostRuns = [];
|
||
var addOnPostRun = cb => onPostRuns.push(cb);
|
||
var onPreRuns = [];
|
||
var addOnPreRun = cb => onPreRuns.push(cb);
|
||
var noExitRuntime = true;
|
||
var __abort_js = () => abort("");
|
||
var runtimeKeepaliveCounter = 0;
|
||
var __emscripten_runtime_keepalive_clear = () => {
|
||
noExitRuntime = false;
|
||
runtimeKeepaliveCounter = 0;
|
||
};
|
||
var timers = {};
|
||
var handleException = e => {
|
||
if (e instanceof ExitStatus || e == "unwind") {
|
||
return EXITSTATUS;
|
||
}
|
||
quit_(1, e);
|
||
};
|
||
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
|
||
var _proc_exit = code => {
|
||
EXITSTATUS = code;
|
||
if (!keepRuntimeAlive()) {
|
||
Module["onExit"]?.(code);
|
||
ABORT = true;
|
||
}
|
||
quit_(code, new ExitStatus(code));
|
||
};
|
||
var exitJS = (status, implicit) => {
|
||
EXITSTATUS = status;
|
||
_proc_exit(status);
|
||
};
|
||
var _exit = exitJS;
|
||
var maybeExit = () => {
|
||
if (!keepRuntimeAlive()) {
|
||
try {
|
||
_exit(EXITSTATUS);
|
||
} catch (e) {
|
||
handleException(e);
|
||
}
|
||
}
|
||
};
|
||
var callUserCallback = func => {
|
||
if (ABORT) {
|
||
return;
|
||
}
|
||
try {
|
||
return func();
|
||
} catch (e) {
|
||
handleException(e);
|
||
} finally {
|
||
maybeExit();
|
||
}
|
||
};
|
||
var _emscripten_get_now = () => performance.now();
|
||
var __setitimer_js = (which, timeout_ms) => {
|
||
if (timers[which]) {
|
||
clearTimeout(timers[which].id);
|
||
delete timers[which];
|
||
}
|
||
if (!timeout_ms) return 0;
|
||
var id = setTimeout(() => {
|
||
delete timers[which];
|
||
callUserCallback(() => __emscripten_timeout(which, _emscripten_get_now()));
|
||
}, timeout_ms);
|
||
timers[which] = {
|
||
id,
|
||
timeout_ms
|
||
};
|
||
return 0;
|
||
};
|
||
function _createImageData(size) {
|
||
Module.imageData = new Uint8Array(size);
|
||
}
|
||
var getHeapMax = () => 2147483648;
|
||
var alignMemory = (size, alignment) => Math.ceil(size / alignment) * alignment;
|
||
var growMemory = size => {
|
||
var oldHeapSize = wasmMemory.buffer.byteLength;
|
||
var pages = (size - oldHeapSize + 65535) / 65536 | 0;
|
||
try {
|
||
wasmMemory.grow(pages);
|
||
updateMemoryViews();
|
||
return 1;
|
||
} catch (e) {}
|
||
};
|
||
var _emscripten_resize_heap = requestedSize => {
|
||
var oldSize = HEAPU8.length;
|
||
requestedSize >>>= 0;
|
||
var maxHeapSize = getHeapMax();
|
||
if (requestedSize > maxHeapSize) {
|
||
return false;
|
||
}
|
||
for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
|
||
var overGrownHeapSize = oldSize * (1 + .2 / cutDown);
|
||
overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296);
|
||
var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536));
|
||
var replacement = growMemory(newSize);
|
||
if (replacement) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
};
|
||
function _setImageData(array_ptr, pitch8, pitch32, height) {
|
||
if (pitch32 === pitch8) {
|
||
Module.imageData = new Uint8ClampedArray(HEAPU8.subarray(array_ptr, array_ptr + pitch32 * height));
|
||
return;
|
||
}
|
||
const destSize = pitch8 * height;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(destSize);
|
||
for (let srcStart = array_ptr, destStart = 0; destStart < destSize; srcStart += pitch32, destStart += pitch8) {
|
||
imageData.set(HEAPU8.subarray(srcStart, srcStart + pitch8), destStart);
|
||
}
|
||
}
|
||
function _setLineData(line_ptr, pitch8, offset) {
|
||
Module.imageData.set(HEAPU8.subarray(line_ptr, line_ptr + pitch8), offset);
|
||
}
|
||
var writeArrayToMemory = (array, buffer) => {
|
||
HEAP8.set(array, buffer);
|
||
};
|
||
if (Module["noExitRuntime"]) noExitRuntime = Module["noExitRuntime"];
|
||
if (Module["print"]) out = Module["print"];
|
||
if (Module["printErr"]) err = Module["printErr"];
|
||
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
|
||
if (Module["arguments"]) arguments_ = Module["arguments"];
|
||
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
|
||
if (Module["preInit"]) {
|
||
if (typeof Module["preInit"] == "function") Module["preInit"] = [Module["preInit"]];
|
||
while (Module["preInit"].length > 0) {
|
||
Module["preInit"].shift()();
|
||
}
|
||
}
|
||
Module["writeArrayToMemory"] = writeArrayToMemory;
|
||
var _malloc, _free, _jbig2_decode, _ccitt_decode, __emscripten_timeout, memory, __indirect_function_table, wasmMemory;
|
||
function assignWasmExports(wasmExports) {
|
||
_malloc = Module["_malloc"] = wasmExports["k"];
|
||
_free = Module["_free"] = wasmExports["l"];
|
||
_jbig2_decode = Module["_jbig2_decode"] = wasmExports["m"];
|
||
_ccitt_decode = Module["_ccitt_decode"] = wasmExports["n"];
|
||
__emscripten_timeout = wasmExports["o"];
|
||
memory = wasmMemory = wasmExports["i"];
|
||
__indirect_function_table = wasmExports["__indirect_function_table"];
|
||
}
|
||
var wasmImports = {
|
||
e: __abort_js,
|
||
b: __emscripten_runtime_keepalive_clear,
|
||
c: __setitimer_js,
|
||
g: _createImageData,
|
||
d: _emscripten_resize_heap,
|
||
a: _proc_exit,
|
||
h: _setImageData,
|
||
f: _setLineData
|
||
};
|
||
function run() {
|
||
preRun();
|
||
function doRun() {
|
||
Module["calledRun"] = true;
|
||
if (ABORT) return;
|
||
initRuntime();
|
||
readyPromiseResolve?.(Module);
|
||
Module["onRuntimeInitialized"]?.();
|
||
postRun();
|
||
}
|
||
if (Module["setStatus"]) {
|
||
Module["setStatus"]("Running...");
|
||
setTimeout(() => {
|
||
setTimeout(() => Module["setStatus"](""), 1);
|
||
doRun();
|
||
}, 1);
|
||
} else {
|
||
doRun();
|
||
}
|
||
}
|
||
var wasmExports;
|
||
wasmExports = await createWasm();
|
||
run();
|
||
if (runtimeInitialized) {
|
||
moduleRtn = Module;
|
||
} else {
|
||
moduleRtn = new Promise((resolve, reject) => {
|
||
readyPromiseResolve = resolve;
|
||
readyPromiseReject = reject;
|
||
});
|
||
}
|
||
return moduleRtn;
|
||
}
|
||
/* harmony default export */ const jbig2 = (JBig2);
|
||
;// ./src/core/jbig2_ccittFax.js
|
||
|
||
|
||
|
||
class Jbig2Error extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "Jbig2Error");
|
||
}
|
||
}
|
||
class JBig2CCITTFaxImage {
|
||
static #buffer = null;
|
||
static #handler = null;
|
||
static #modulePromise = null;
|
||
static #useWasm = true;
|
||
static #useWorkerFetch = true;
|
||
static #wasmUrl = null;
|
||
static setOptions({
|
||
handler,
|
||
useWasm,
|
||
useWorkerFetch,
|
||
wasmUrl
|
||
}) {
|
||
this.#useWasm = useWasm;
|
||
this.#useWorkerFetch = useWorkerFetch;
|
||
this.#wasmUrl = wasmUrl;
|
||
if (!useWorkerFetch) {
|
||
this.#handler = handler;
|
||
}
|
||
}
|
||
static async #getJsModule(fallbackCallback) {
|
||
const path = `${this.#wasmUrl}jbig2_nowasm_fallback.js`;
|
||
let instance = null;
|
||
try {
|
||
const mod = await import(
|
||
/*webpackIgnore: true*/
|
||
/*@vite-ignore*/
|
||
path);
|
||
instance = mod.default();
|
||
} catch (e) {
|
||
warn(`JBig2CCITTFaxImage#getJsModule: ${e}`);
|
||
}
|
||
fallbackCallback(instance);
|
||
}
|
||
static async #instantiateWasm(fallbackCallback, imports, successCallback) {
|
||
const filename = "jbig2.wasm";
|
||
try {
|
||
if (!this.#buffer) {
|
||
if (this.#useWorkerFetch) {
|
||
this.#buffer = await fetchBinaryData(`${this.#wasmUrl}${filename}`);
|
||
} else {
|
||
this.#buffer = await this.#handler.sendWithPromise("FetchBinaryData", {
|
||
kind: "wasmUrl",
|
||
filename
|
||
});
|
||
}
|
||
}
|
||
const results = await WebAssembly.instantiate(this.#buffer, imports);
|
||
return successCallback(results.instance);
|
||
} catch (reason) {
|
||
warn(`JBig2CCITTFaxImage#instantiateWasm: ${reason}`);
|
||
this.#getJsModule(fallbackCallback);
|
||
return null;
|
||
} finally {
|
||
this.#handler = null;
|
||
}
|
||
}
|
||
static async decode(bytes, width, height, globals, CCITTOptions) {
|
||
if (!this.#modulePromise) {
|
||
const {
|
||
promise,
|
||
resolve
|
||
} = Promise.withResolvers();
|
||
const promises = [promise];
|
||
if (!this.#useWasm) {
|
||
this.#getJsModule(resolve);
|
||
} else {
|
||
promises.push(jbig2({
|
||
warn: warn,
|
||
instantiateWasm: this.#instantiateWasm.bind(this, resolve)
|
||
}));
|
||
}
|
||
this.#modulePromise = Promise.race(promises);
|
||
}
|
||
const module = await this.#modulePromise;
|
||
if (!module) {
|
||
throw new Jbig2Error("JBig2 failed to initialize");
|
||
}
|
||
let ptr, globalsPtr;
|
||
try {
|
||
const size = bytes.length;
|
||
ptr = module._malloc(size);
|
||
module.writeArrayToMemory(bytes, ptr);
|
||
if (CCITTOptions) {
|
||
module._ccitt_decode(ptr, size, width, height, CCITTOptions.K, CCITTOptions.EndOfLine ? 1 : 0, CCITTOptions.EncodedByteAlign ? 1 : 0, CCITTOptions.BlackIs1 ? 1 : 0, CCITTOptions.Columns, CCITTOptions.Rows);
|
||
} else {
|
||
const globalsSize = globals ? globals.length : 0;
|
||
if (globalsSize > 0) {
|
||
globalsPtr = module._malloc(globalsSize);
|
||
module.writeArrayToMemory(globals, globalsPtr);
|
||
}
|
||
module._jbig2_decode(ptr, size, width, height, globalsPtr, globalsSize);
|
||
}
|
||
if (!module.imageData) {
|
||
throw new Jbig2Error("Unknown error");
|
||
}
|
||
const {
|
||
imageData
|
||
} = module;
|
||
module.imageData = null;
|
||
return imageData;
|
||
} finally {
|
||
if (ptr) {
|
||
module._free(ptr);
|
||
}
|
||
if (globalsPtr) {
|
||
module._free(globalsPtr);
|
||
}
|
||
}
|
||
}
|
||
static cleanup() {
|
||
this.#modulePromise = null;
|
||
}
|
||
}
|
||
|
||
;// ./src/shared/math_clamp.js
|
||
function MathClamp(v, min, max) {
|
||
return Math.min(Math.max(v, min), max);
|
||
}
|
||
|
||
;// ./src/core/colorspace.js
|
||
|
||
|
||
|
||
function resizeRgbImage(src, dest, w1, h1, w2, h2, alpha01) {
|
||
const COMPONENTS = 3;
|
||
alpha01 = alpha01 !== 1 ? 0 : alpha01;
|
||
const xRatio = w1 / w2;
|
||
const yRatio = h1 / h2;
|
||
let newIndex = 0,
|
||
oldIndex;
|
||
const xScaled = new Uint16Array(w2);
|
||
const w1Scanline = w1 * COMPONENTS;
|
||
for (let i = 0; i < w2; i++) {
|
||
xScaled[i] = Math.floor(i * xRatio) * COMPONENTS;
|
||
}
|
||
for (let i = 0; i < h2; i++) {
|
||
const py = Math.floor(i * yRatio) * w1Scanline;
|
||
for (let j = 0; j < w2; j++) {
|
||
oldIndex = py + xScaled[j];
|
||
dest[newIndex++] = src[oldIndex++];
|
||
dest[newIndex++] = src[oldIndex++];
|
||
dest[newIndex++] = src[oldIndex++];
|
||
newIndex += alpha01;
|
||
}
|
||
}
|
||
}
|
||
function resizeRgbaImage(src, dest, w1, h1, w2, h2, alpha01) {
|
||
const xRatio = w1 / w2;
|
||
const yRatio = h1 / h2;
|
||
let newIndex = 0;
|
||
const xScaled = new Uint16Array(w2);
|
||
if (alpha01 === 1) {
|
||
for (let i = 0; i < w2; i++) {
|
||
xScaled[i] = Math.floor(i * xRatio);
|
||
}
|
||
const src32 = new Uint32Array(src.buffer);
|
||
const dest32 = new Uint32Array(dest.buffer);
|
||
const rgbMask = FeatureTest.isLittleEndian ? 0x00ffffff : 0xffffff00;
|
||
for (let i = 0; i < h2; i++) {
|
||
const buf = src32.subarray(Math.floor(i * yRatio) * w1);
|
||
for (let j = 0; j < w2; j++) {
|
||
dest32[newIndex++] |= buf[xScaled[j]] & rgbMask;
|
||
}
|
||
}
|
||
} else {
|
||
const COMPONENTS = 4;
|
||
const w1Scanline = w1 * COMPONENTS;
|
||
for (let i = 0; i < w2; i++) {
|
||
xScaled[i] = Math.floor(i * xRatio) * COMPONENTS;
|
||
}
|
||
for (let i = 0; i < h2; i++) {
|
||
const buf = src.subarray(Math.floor(i * yRatio) * w1Scanline);
|
||
for (let j = 0; j < w2; j++) {
|
||
const oldIndex = xScaled[j];
|
||
dest[newIndex++] = buf[oldIndex];
|
||
dest[newIndex++] = buf[oldIndex + 1];
|
||
dest[newIndex++] = buf[oldIndex + 2];
|
||
}
|
||
}
|
||
}
|
||
}
|
||
function copyRgbaImage(src, dest, alpha01) {
|
||
if (alpha01 === 1) {
|
||
const src32 = new Uint32Array(src.buffer);
|
||
const dest32 = new Uint32Array(dest.buffer);
|
||
const rgbMask = FeatureTest.isLittleEndian ? 0x00ffffff : 0xffffff00;
|
||
for (let i = 0, ii = src32.length; i < ii; i++) {
|
||
dest32[i] |= src32[i] & rgbMask;
|
||
}
|
||
} else {
|
||
let j = 0;
|
||
for (let i = 0, ii = src.length; i < ii; i += 4) {
|
||
dest[j++] = src[i];
|
||
dest[j++] = src[i + 1];
|
||
dest[j++] = src[i + 2];
|
||
}
|
||
}
|
||
}
|
||
function isDefaultDecodeHelper(decode, expectedLen) {
|
||
if (!Array.isArray(decode)) {
|
||
return true;
|
||
}
|
||
const decodeLen = decode.length;
|
||
if (decodeLen < expectedLen) {
|
||
warn("Decode map length is too short.");
|
||
return true;
|
||
}
|
||
if (decodeLen > expectedLen) {
|
||
info("Truncating too long decode map.");
|
||
decode.length = expectedLen;
|
||
}
|
||
return false;
|
||
}
|
||
class ColorSpace {
|
||
static #rgbBuf = new Uint8ClampedArray(3);
|
||
constructor(name, numComps) {
|
||
this.name = name;
|
||
this.numComps = numComps;
|
||
}
|
||
getRgb(src, srcOffset, output = new Uint8ClampedArray(3)) {
|
||
this.getRgbItem(src, srcOffset, output, 0);
|
||
return output;
|
||
}
|
||
getRgbHex(src, srcOffset) {
|
||
const buffer = this.getRgb(src, srcOffset, ColorSpace.#rgbBuf);
|
||
return Util.makeHexColor(buffer[0], buffer[1], buffer[2]);
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
unreachable("Should not call ColorSpace.getRgbItem");
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
unreachable("Should not call ColorSpace.getRgbBuffer");
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
unreachable("Should not call ColorSpace.getOutputLength");
|
||
}
|
||
isPassthrough(bits) {
|
||
return false;
|
||
}
|
||
isDefaultDecode(decode, bpc) {
|
||
return ColorSpace.isDefaultDecode(decode, this.numComps);
|
||
}
|
||
fillRgb(dest, originalWidth, originalHeight, width, height, actualHeight, bpc, comps, alpha01) {
|
||
const count = originalWidth * originalHeight;
|
||
let rgbBuf = null;
|
||
const numComponentColors = 1 << bpc;
|
||
const needsResizing = originalHeight !== height || originalWidth !== width;
|
||
if (this.isPassthrough(bpc)) {
|
||
rgbBuf = comps;
|
||
} else if (this.numComps === 1 && count > numComponentColors && this.name !== "DeviceGray" && this.name !== "DeviceRGB") {
|
||
const allColors = bpc <= 8 ? new Uint8Array(numComponentColors) : new Uint16Array(numComponentColors);
|
||
for (let i = 0; i < numComponentColors; i++) {
|
||
allColors[i] = i;
|
||
}
|
||
const colorMap = new Uint8ClampedArray(numComponentColors * 3);
|
||
this.getRgbBuffer(allColors, 0, numComponentColors, colorMap, 0, bpc, 0);
|
||
if (!needsResizing) {
|
||
let destPos = 0;
|
||
for (let i = 0; i < count; ++i) {
|
||
const key = comps[i] * 3;
|
||
dest[destPos++] = colorMap[key];
|
||
dest[destPos++] = colorMap[key + 1];
|
||
dest[destPos++] = colorMap[key + 2];
|
||
destPos += alpha01;
|
||
}
|
||
} else {
|
||
rgbBuf = new Uint8Array(count * 3);
|
||
let rgbPos = 0;
|
||
for (let i = 0; i < count; ++i) {
|
||
const key = comps[i] * 3;
|
||
rgbBuf[rgbPos++] = colorMap[key];
|
||
rgbBuf[rgbPos++] = colorMap[key + 1];
|
||
rgbBuf[rgbPos++] = colorMap[key + 2];
|
||
}
|
||
}
|
||
} else if (!needsResizing) {
|
||
this.getRgbBuffer(comps, 0, width * actualHeight, dest, 0, bpc, alpha01);
|
||
} else {
|
||
rgbBuf = new Uint8ClampedArray(count * 3);
|
||
this.getRgbBuffer(comps, 0, count, rgbBuf, 0, bpc, 0);
|
||
}
|
||
if (rgbBuf) {
|
||
if (needsResizing) {
|
||
resizeRgbImage(rgbBuf, dest, originalWidth, originalHeight, width, height, alpha01);
|
||
} else {
|
||
let destPos = 0,
|
||
rgbPos = 0;
|
||
for (let i = 0, ii = width * actualHeight; i < ii; i++) {
|
||
dest[destPos++] = rgbBuf[rgbPos++];
|
||
dest[destPos++] = rgbBuf[rgbPos++];
|
||
dest[destPos++] = rgbBuf[rgbPos++];
|
||
destPos += alpha01;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
get usesZeroToOneRange() {
|
||
return shadow(this, "usesZeroToOneRange", true);
|
||
}
|
||
static isDefaultDecode(decode, numComps) {
|
||
if (isDefaultDecodeHelper(decode, numComps * 2)) {
|
||
return true;
|
||
}
|
||
for (let i = 0, ii = decode.length; i < ii; i += 2) {
|
||
if (decode[i] !== 0 || decode[i + 1] !== 1) {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
}
|
||
class AlternateCS extends ColorSpace {
|
||
constructor(numComps, base, tintFn) {
|
||
super("Alternate", numComps);
|
||
this.base = base;
|
||
this.tintFn = tintFn;
|
||
this.tmpBuf = new Float32Array(base.numComps);
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
const tmpBuf = this.tmpBuf;
|
||
this.tintFn(src, srcOffset, tmpBuf, 0);
|
||
this.base.getRgbItem(tmpBuf, 0, dest, destOffset);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const tintFn = this.tintFn;
|
||
const base = this.base;
|
||
const scale = 1 / ((1 << bits) - 1);
|
||
const baseNumComps = base.numComps;
|
||
const usesZeroToOneRange = base.usesZeroToOneRange;
|
||
const isPassthrough = (base.isPassthrough(8) || !usesZeroToOneRange) && alpha01 === 0;
|
||
let pos = isPassthrough ? destOffset : 0;
|
||
const baseBuf = isPassthrough ? dest : new Uint8ClampedArray(baseNumComps * count);
|
||
const numComps = this.numComps;
|
||
const scaled = new Float32Array(numComps);
|
||
const tinted = new Float32Array(baseNumComps);
|
||
let i, j;
|
||
for (i = 0; i < count; i++) {
|
||
for (j = 0; j < numComps; j++) {
|
||
scaled[j] = src[srcOffset++] * scale;
|
||
}
|
||
tintFn(scaled, 0, tinted, 0);
|
||
if (usesZeroToOneRange) {
|
||
for (j = 0; j < baseNumComps; j++) {
|
||
baseBuf[pos++] = tinted[j] * 255;
|
||
}
|
||
} else {
|
||
base.getRgbItem(tinted, 0, baseBuf, pos);
|
||
pos += baseNumComps;
|
||
}
|
||
}
|
||
if (!isPassthrough) {
|
||
base.getRgbBuffer(baseBuf, 0, count, dest, destOffset, 8, alpha01);
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return this.base.getOutputLength(inputLength * this.base.numComps / this.numComps, alpha01);
|
||
}
|
||
}
|
||
class PatternCS extends ColorSpace {
|
||
constructor(baseCS) {
|
||
super("Pattern", null);
|
||
this.base = baseCS;
|
||
}
|
||
isDefaultDecode(decode, bpc) {
|
||
unreachable("Should not call PatternCS.isDefaultDecode");
|
||
}
|
||
}
|
||
class IndexedCS extends ColorSpace {
|
||
constructor(base, highVal, lookup) {
|
||
super("Indexed", 1);
|
||
this.base = base;
|
||
this.highVal = highVal;
|
||
const length = base.numComps * (highVal + 1);
|
||
this.lookup = new Uint8Array(length);
|
||
if (lookup instanceof BaseStream) {
|
||
const bytes = lookup.getBytes(length);
|
||
this.lookup.set(bytes);
|
||
} else if (typeof lookup === "string") {
|
||
for (let i = 0; i < length; ++i) {
|
||
this.lookup[i] = lookup.charCodeAt(i) & 0xff;
|
||
}
|
||
} else {
|
||
throw new FormatError(`IndexedCS - unrecognized lookup table: ${lookup}`);
|
||
}
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
const {
|
||
base,
|
||
highVal,
|
||
lookup
|
||
} = this;
|
||
const start = MathClamp(Math.round(src[srcOffset]), 0, highVal) * base.numComps;
|
||
base.getRgbBuffer(lookup, start, 1, dest, destOffset, 8, 0);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const {
|
||
base,
|
||
highVal,
|
||
lookup
|
||
} = this;
|
||
const {
|
||
numComps
|
||
} = base;
|
||
const outputDelta = base.getOutputLength(numComps, alpha01);
|
||
for (let i = 0; i < count; ++i) {
|
||
const lookupPos = MathClamp(Math.round(src[srcOffset++]), 0, highVal) * numComps;
|
||
base.getRgbBuffer(lookup, lookupPos, 1, dest, destOffset, 8, alpha01);
|
||
destOffset += outputDelta;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return this.base.getOutputLength(inputLength * this.base.numComps, alpha01);
|
||
}
|
||
isDefaultDecode(decode, bpc) {
|
||
if (isDefaultDecodeHelper(decode, 2)) {
|
||
return true;
|
||
}
|
||
if (!Number.isInteger(bpc) || bpc < 1) {
|
||
warn("Bits per component is not correct");
|
||
return true;
|
||
}
|
||
return decode[0] === 0 && decode[1] === (1 << bpc) - 1;
|
||
}
|
||
}
|
||
class DeviceGrayCS extends ColorSpace {
|
||
constructor() {
|
||
super("DeviceGray", 1);
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
const c = src[srcOffset] * 255;
|
||
dest[destOffset] = dest[destOffset + 1] = dest[destOffset + 2] = c;
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const scale = 255 / ((1 << bits) - 1);
|
||
let j = srcOffset,
|
||
q = destOffset;
|
||
for (let i = 0; i < count; ++i) {
|
||
const c = scale * src[j++];
|
||
dest[q++] = c;
|
||
dest[q++] = c;
|
||
dest[q++] = c;
|
||
q += alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength * (3 + alpha01);
|
||
}
|
||
}
|
||
class DeviceRgbCS extends ColorSpace {
|
||
constructor() {
|
||
super("DeviceRGB", 3);
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
dest[destOffset] = src[srcOffset] * 255;
|
||
dest[destOffset + 1] = src[srcOffset + 1] * 255;
|
||
dest[destOffset + 2] = src[srcOffset + 2] * 255;
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
if (bits === 8 && alpha01 === 0) {
|
||
dest.set(src.subarray(srcOffset, srcOffset + count * 3), destOffset);
|
||
return;
|
||
}
|
||
const scale = 255 / ((1 << bits) - 1);
|
||
let j = srcOffset,
|
||
q = destOffset;
|
||
for (let i = 0; i < count; ++i) {
|
||
dest[q++] = scale * src[j++];
|
||
dest[q++] = scale * src[j++];
|
||
dest[q++] = scale * src[j++];
|
||
q += alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength * (3 + alpha01) / 3 | 0;
|
||
}
|
||
isPassthrough(bits) {
|
||
return bits === 8;
|
||
}
|
||
}
|
||
class DeviceRgbaCS extends ColorSpace {
|
||
constructor() {
|
||
super("DeviceRGBA", 4);
|
||
}
|
||
getOutputLength(inputLength, _alpha01) {
|
||
return inputLength * 4;
|
||
}
|
||
isPassthrough(bits) {
|
||
return bits === 8;
|
||
}
|
||
fillRgb(dest, originalWidth, originalHeight, width, height, actualHeight, bpc, comps, alpha01) {
|
||
if (originalHeight !== height || originalWidth !== width) {
|
||
resizeRgbaImage(comps, dest, originalWidth, originalHeight, width, height, alpha01);
|
||
} else {
|
||
copyRgbaImage(comps, dest, alpha01);
|
||
}
|
||
}
|
||
}
|
||
class DeviceCmykCS extends ColorSpace {
|
||
constructor() {
|
||
super("DeviceCMYK", 4);
|
||
}
|
||
#toRgb(src, srcOffset, srcScale, dest, destOffset) {
|
||
const c = src[srcOffset] * srcScale;
|
||
const m = src[srcOffset + 1] * srcScale;
|
||
const y = src[srcOffset + 2] * srcScale;
|
||
const k = src[srcOffset + 3] * srcScale;
|
||
dest[destOffset] = 255 + c * (-4.387332384609988 * c + 54.48615194189176 * m + 18.82290502165302 * y + 212.25662451639585 * k + -285.2331026137004) + m * (1.7149763477362134 * m - 5.6096736904047315 * y + -17.873870861415444 * k - 5.497006427196366) + y * (-2.5217340131683033 * y - 21.248923337353073 * k + 17.5119270841813) + k * (-21.86122147463605 * k - 189.48180835922747);
|
||
dest[destOffset + 1] = 255 + c * (8.841041422036149 * c + 60.118027045597366 * m + 6.871425592049007 * y + 31.159100130055922 * k + -79.2970844816548) + m * (-15.310361306967817 * m + 17.575251261109482 * y + 131.35250912493976 * k - 190.9453302588951) + y * (4.444339102852739 * y + 9.8632861493405 * k - 24.86741582555878) + k * (-20.737325471181034 * k - 187.80453709719578);
|
||
dest[destOffset + 2] = 255 + c * (0.8842522430003296 * c + 8.078677503112928 * m + 30.89978309703729 * y - 0.23883238689178934 * k + -14.183576799673286) + m * (10.49593273432072 * m + 63.02378494754052 * y + 50.606957656360734 * k - 112.23884253719248) + y * (0.03296041114873217 * y + 115.60384449646641 * k + -193.58209356861505) + k * (-22.33816807309886 * k - 180.12613974708367);
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
this.#toRgb(src, srcOffset, 1, dest, destOffset);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const scale = 1 / ((1 << bits) - 1);
|
||
for (let i = 0; i < count; i++) {
|
||
this.#toRgb(src, srcOffset, scale, dest, destOffset);
|
||
srcOffset += 4;
|
||
destOffset += 3 + alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength / 4 * (3 + alpha01) | 0;
|
||
}
|
||
}
|
||
class CalGrayCS extends ColorSpace {
|
||
constructor(whitePoint, blackPoint, gamma) {
|
||
super("CalGray", 1);
|
||
if (!whitePoint) {
|
||
throw new FormatError("WhitePoint missing - required for color space CalGray");
|
||
}
|
||
[this.XW, this.YW, this.ZW] = whitePoint;
|
||
[this.XB, this.YB, this.ZB] = blackPoint || [0, 0, 0];
|
||
this.G = gamma || 1;
|
||
if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) {
|
||
throw new FormatError(`Invalid WhitePoint components for ${this.name}, no fallback available`);
|
||
}
|
||
if (this.XB < 0 || this.YB < 0 || this.ZB < 0) {
|
||
info(`Invalid BlackPoint for ${this.name}, falling back to default.`);
|
||
this.XB = this.YB = this.ZB = 0;
|
||
}
|
||
if (this.XB !== 0 || this.YB !== 0 || this.ZB !== 0) {
|
||
warn(`${this.name}, BlackPoint: XB: ${this.XB}, YB: ${this.YB}, ` + `ZB: ${this.ZB}, only default values are supported.`);
|
||
}
|
||
if (this.G < 1) {
|
||
info(`Invalid Gamma: ${this.G} for ${this.name}, falling back to default.`);
|
||
this.G = 1;
|
||
}
|
||
}
|
||
#toRgb(src, srcOffset, dest, destOffset, scale) {
|
||
const A = src[srcOffset] * scale;
|
||
const AG = A ** this.G;
|
||
const L = this.YW * AG;
|
||
const val = Math.max(295.8 * L ** 0.3333333333333333 - 40.8, 0);
|
||
dest[destOffset] = val;
|
||
dest[destOffset + 1] = val;
|
||
dest[destOffset + 2] = val;
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
this.#toRgb(src, srcOffset, dest, destOffset, 1);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const scale = 1 / ((1 << bits) - 1);
|
||
for (let i = 0; i < count; ++i) {
|
||
this.#toRgb(src, srcOffset, dest, destOffset, scale);
|
||
srcOffset += 1;
|
||
destOffset += 3 + alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength * (3 + alpha01);
|
||
}
|
||
}
|
||
class CalRGBCS extends ColorSpace {
|
||
static #BRADFORD_SCALE_MATRIX = new Float32Array([0.8951, 0.2664, -0.1614, -0.7502, 1.7135, 0.0367, 0.0389, -0.0685, 1.0296]);
|
||
static #BRADFORD_SCALE_INVERSE_MATRIX = new Float32Array([0.9869929, -0.1470543, 0.1599627, 0.4323053, 0.5183603, 0.0492912, -0.0085287, 0.0400428, 0.9684867]);
|
||
static #SRGB_D65_XYZ_TO_RGB_MATRIX = new Float32Array([3.2404542, -1.5371385, -0.4985314, -0.9692660, 1.8760108, 0.0415560, 0.0556434, -0.2040259, 1.0572252]);
|
||
static #FLAT_WHITEPOINT_MATRIX = new Float32Array([1, 1, 1]);
|
||
static #tempNormalizeMatrix = new Float32Array(3);
|
||
static #tempConvertMatrix1 = new Float32Array(3);
|
||
static #tempConvertMatrix2 = new Float32Array(3);
|
||
static #DECODE_L_CONSTANT = ((8 + 16) / 116) ** 3 / 8.0;
|
||
constructor(whitePoint, blackPoint, gamma, matrix) {
|
||
super("CalRGB", 3);
|
||
if (!whitePoint) {
|
||
throw new FormatError("WhitePoint missing - required for color space CalRGB");
|
||
}
|
||
const [XW, YW, ZW] = this.whitePoint = whitePoint;
|
||
const [XB, YB, ZB] = this.blackPoint = blackPoint || new Float32Array(3);
|
||
[this.GR, this.GG, this.GB] = gamma || new Float32Array([1, 1, 1]);
|
||
[this.MXA, this.MYA, this.MZA, this.MXB, this.MYB, this.MZB, this.MXC, this.MYC, this.MZC] = matrix || new Float32Array([1, 0, 0, 0, 1, 0, 0, 0, 1]);
|
||
if (XW < 0 || ZW < 0 || YW !== 1) {
|
||
throw new FormatError(`Invalid WhitePoint components for ${this.name}, no fallback available`);
|
||
}
|
||
if (XB < 0 || YB < 0 || ZB < 0) {
|
||
info(`Invalid BlackPoint for ${this.name} [${XB}, ${YB}, ${ZB}], ` + "falling back to default.");
|
||
this.blackPoint = new Float32Array(3);
|
||
}
|
||
if (this.GR < 0 || this.GG < 0 || this.GB < 0) {
|
||
info(`Invalid Gamma [${this.GR}, ${this.GG}, ${this.GB}] for ` + `${this.name}, falling back to default.`);
|
||
this.GR = this.GG = this.GB = 1;
|
||
}
|
||
}
|
||
#matrixProduct(a, b, result) {
|
||
result[0] = a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
|
||
result[1] = a[3] * b[0] + a[4] * b[1] + a[5] * b[2];
|
||
result[2] = a[6] * b[0] + a[7] * b[1] + a[8] * b[2];
|
||
}
|
||
#toFlat(sourceWhitePoint, LMS, result) {
|
||
result[0] = LMS[0] * 1 / sourceWhitePoint[0];
|
||
result[1] = LMS[1] * 1 / sourceWhitePoint[1];
|
||
result[2] = LMS[2] * 1 / sourceWhitePoint[2];
|
||
}
|
||
#toD65(sourceWhitePoint, LMS, result) {
|
||
const D65X = 0.95047;
|
||
const D65Y = 1;
|
||
const D65Z = 1.08883;
|
||
result[0] = LMS[0] * D65X / sourceWhitePoint[0];
|
||
result[1] = LMS[1] * D65Y / sourceWhitePoint[1];
|
||
result[2] = LMS[2] * D65Z / sourceWhitePoint[2];
|
||
}
|
||
#sRGBTransferFunction(color) {
|
||
if (color <= 0.0031308) {
|
||
return MathClamp(12.92 * color, 0, 1);
|
||
}
|
||
if (color >= 0.99554525) {
|
||
return 1;
|
||
}
|
||
return MathClamp((1 + 0.055) * color ** (1 / 2.4) - 0.055, 0, 1);
|
||
}
|
||
#decodeL(L) {
|
||
if (L < 0) {
|
||
return -this.#decodeL(-L);
|
||
}
|
||
if (L > 8.0) {
|
||
return ((L + 16) / 116) ** 3;
|
||
}
|
||
return L * CalRGBCS.#DECODE_L_CONSTANT;
|
||
}
|
||
#compensateBlackPoint(sourceBlackPoint, XYZ_Flat, result) {
|
||
if (sourceBlackPoint[0] === 0 && sourceBlackPoint[1] === 0 && sourceBlackPoint[2] === 0) {
|
||
result[0] = XYZ_Flat[0];
|
||
result[1] = XYZ_Flat[1];
|
||
result[2] = XYZ_Flat[2];
|
||
return;
|
||
}
|
||
const zeroDecodeL = this.#decodeL(0);
|
||
const X_DST = zeroDecodeL;
|
||
const X_SRC = this.#decodeL(sourceBlackPoint[0]);
|
||
const Y_DST = zeroDecodeL;
|
||
const Y_SRC = this.#decodeL(sourceBlackPoint[1]);
|
||
const Z_DST = zeroDecodeL;
|
||
const Z_SRC = this.#decodeL(sourceBlackPoint[2]);
|
||
const X_Scale = (1 - X_DST) / (1 - X_SRC);
|
||
const X_Offset = 1 - X_Scale;
|
||
const Y_Scale = (1 - Y_DST) / (1 - Y_SRC);
|
||
const Y_Offset = 1 - Y_Scale;
|
||
const Z_Scale = (1 - Z_DST) / (1 - Z_SRC);
|
||
const Z_Offset = 1 - Z_Scale;
|
||
result[0] = XYZ_Flat[0] * X_Scale + X_Offset;
|
||
result[1] = XYZ_Flat[1] * Y_Scale + Y_Offset;
|
||
result[2] = XYZ_Flat[2] * Z_Scale + Z_Offset;
|
||
}
|
||
#normalizeWhitePointToFlat(sourceWhitePoint, XYZ_In, result) {
|
||
if (sourceWhitePoint[0] === 1 && sourceWhitePoint[2] === 1) {
|
||
result[0] = XYZ_In[0];
|
||
result[1] = XYZ_In[1];
|
||
result[2] = XYZ_In[2];
|
||
return;
|
||
}
|
||
const LMS = result;
|
||
this.#matrixProduct(CalRGBCS.#BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
|
||
const LMS_Flat = CalRGBCS.#tempNormalizeMatrix;
|
||
this.#toFlat(sourceWhitePoint, LMS, LMS_Flat);
|
||
this.#matrixProduct(CalRGBCS.#BRADFORD_SCALE_INVERSE_MATRIX, LMS_Flat, result);
|
||
}
|
||
#normalizeWhitePointToD65(sourceWhitePoint, XYZ_In, result) {
|
||
const LMS = result;
|
||
this.#matrixProduct(CalRGBCS.#BRADFORD_SCALE_MATRIX, XYZ_In, LMS);
|
||
const LMS_D65 = CalRGBCS.#tempNormalizeMatrix;
|
||
this.#toD65(sourceWhitePoint, LMS, LMS_D65);
|
||
this.#matrixProduct(CalRGBCS.#BRADFORD_SCALE_INVERSE_MATRIX, LMS_D65, result);
|
||
}
|
||
#toRgb(src, srcOffset, dest, destOffset, scale) {
|
||
const A = MathClamp(src[srcOffset] * scale, 0, 1);
|
||
const B = MathClamp(src[srcOffset + 1] * scale, 0, 1);
|
||
const C = MathClamp(src[srcOffset + 2] * scale, 0, 1);
|
||
const AGR = A === 1 ? 1 : A ** this.GR;
|
||
const BGG = B === 1 ? 1 : B ** this.GG;
|
||
const CGB = C === 1 ? 1 : C ** this.GB;
|
||
const X = this.MXA * AGR + this.MXB * BGG + this.MXC * CGB;
|
||
const Y = this.MYA * AGR + this.MYB * BGG + this.MYC * CGB;
|
||
const Z = this.MZA * AGR + this.MZB * BGG + this.MZC * CGB;
|
||
const XYZ = CalRGBCS.#tempConvertMatrix1;
|
||
XYZ[0] = X;
|
||
XYZ[1] = Y;
|
||
XYZ[2] = Z;
|
||
const XYZ_Flat = CalRGBCS.#tempConvertMatrix2;
|
||
this.#normalizeWhitePointToFlat(this.whitePoint, XYZ, XYZ_Flat);
|
||
const XYZ_Black = CalRGBCS.#tempConvertMatrix1;
|
||
this.#compensateBlackPoint(this.blackPoint, XYZ_Flat, XYZ_Black);
|
||
const XYZ_D65 = CalRGBCS.#tempConvertMatrix2;
|
||
this.#normalizeWhitePointToD65(CalRGBCS.#FLAT_WHITEPOINT_MATRIX, XYZ_Black, XYZ_D65);
|
||
const SRGB = CalRGBCS.#tempConvertMatrix1;
|
||
this.#matrixProduct(CalRGBCS.#SRGB_D65_XYZ_TO_RGB_MATRIX, XYZ_D65, SRGB);
|
||
dest[destOffset] = this.#sRGBTransferFunction(SRGB[0]) * 255;
|
||
dest[destOffset + 1] = this.#sRGBTransferFunction(SRGB[1]) * 255;
|
||
dest[destOffset + 2] = this.#sRGBTransferFunction(SRGB[2]) * 255;
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
this.#toRgb(src, srcOffset, dest, destOffset, 1);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const scale = 1 / ((1 << bits) - 1);
|
||
for (let i = 0; i < count; ++i) {
|
||
this.#toRgb(src, srcOffset, dest, destOffset, scale);
|
||
srcOffset += 3;
|
||
destOffset += 3 + alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength * (3 + alpha01) / 3 | 0;
|
||
}
|
||
}
|
||
class LabCS extends ColorSpace {
|
||
constructor(whitePoint, blackPoint, range) {
|
||
super("Lab", 3);
|
||
if (!whitePoint) {
|
||
throw new FormatError("WhitePoint missing - required for color space Lab");
|
||
}
|
||
[this.XW, this.YW, this.ZW] = whitePoint;
|
||
[this.amin, this.amax, this.bmin, this.bmax] = range || [-100, 100, -100, 100];
|
||
[this.XB, this.YB, this.ZB] = blackPoint || [0, 0, 0];
|
||
if (this.XW < 0 || this.ZW < 0 || this.YW !== 1) {
|
||
throw new FormatError("Invalid WhitePoint components, no fallback available");
|
||
}
|
||
if (this.XB < 0 || this.YB < 0 || this.ZB < 0) {
|
||
info("Invalid BlackPoint, falling back to default");
|
||
this.XB = this.YB = this.ZB = 0;
|
||
}
|
||
if (this.amin > this.amax || this.bmin > this.bmax) {
|
||
info("Invalid Range, falling back to defaults");
|
||
this.amin = -100;
|
||
this.amax = 100;
|
||
this.bmin = -100;
|
||
this.bmax = 100;
|
||
}
|
||
}
|
||
#fn_g(x) {
|
||
return x >= 6 / 29 ? x ** 3 : 108 / 841 * (x - 4 / 29);
|
||
}
|
||
#decode(value, high1, low2, high2) {
|
||
return low2 + value * (high2 - low2) / high1;
|
||
}
|
||
#toRgb(src, srcOffset, maxVal, dest, destOffset) {
|
||
let Ls = src[srcOffset];
|
||
let as = src[srcOffset + 1];
|
||
let bs = src[srcOffset + 2];
|
||
if (maxVal !== false) {
|
||
Ls = this.#decode(Ls, maxVal, 0, 100);
|
||
as = this.#decode(as, maxVal, this.amin, this.amax);
|
||
bs = this.#decode(bs, maxVal, this.bmin, this.bmax);
|
||
}
|
||
if (as > this.amax) {
|
||
as = this.amax;
|
||
} else if (as < this.amin) {
|
||
as = this.amin;
|
||
}
|
||
if (bs > this.bmax) {
|
||
bs = this.bmax;
|
||
} else if (bs < this.bmin) {
|
||
bs = this.bmin;
|
||
}
|
||
const M = (Ls + 16) / 116;
|
||
const L = M + as / 500;
|
||
const N = M - bs / 200;
|
||
const X = this.XW * this.#fn_g(L);
|
||
const Y = this.YW * this.#fn_g(M);
|
||
const Z = this.ZW * this.#fn_g(N);
|
||
let r, g, b;
|
||
if (this.ZW < 1) {
|
||
r = X * 3.1339 + Y * -1.617 + Z * -0.4906;
|
||
g = X * -0.9785 + Y * 1.916 + Z * 0.0333;
|
||
b = X * 0.072 + Y * -0.229 + Z * 1.4057;
|
||
} else {
|
||
r = X * 3.2406 + Y * -1.5372 + Z * -0.4986;
|
||
g = X * -0.9689 + Y * 1.8758 + Z * 0.0415;
|
||
b = X * 0.0557 + Y * -0.204 + Z * 1.057;
|
||
}
|
||
dest[destOffset] = Math.sqrt(r) * 255;
|
||
dest[destOffset + 1] = Math.sqrt(g) * 255;
|
||
dest[destOffset + 2] = Math.sqrt(b) * 255;
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
this.#toRgb(src, srcOffset, false, dest, destOffset);
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
const maxVal = (1 << bits) - 1;
|
||
for (let i = 0; i < count; i++) {
|
||
this.#toRgb(src, srcOffset, maxVal, dest, destOffset);
|
||
srcOffset += 3;
|
||
destOffset += 3 + alpha01;
|
||
}
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength * (3 + alpha01) / 3 | 0;
|
||
}
|
||
isDefaultDecode(decode, bpc) {
|
||
return true;
|
||
}
|
||
get usesZeroToOneRange() {
|
||
return shadow(this, "usesZeroToOneRange", false);
|
||
}
|
||
}
|
||
|
||
;// ./external/qcms/qcms_utils.js
|
||
class QCMS {
|
||
static #memoryArray = null;
|
||
static _memory = null;
|
||
static _mustAddAlpha = false;
|
||
static _destBuffer = null;
|
||
static _destOffset = 0;
|
||
static _destLength = 0;
|
||
static _cssColor = "";
|
||
static _makeHexColor = null;
|
||
static get _memoryArray() {
|
||
const array = this.#memoryArray;
|
||
if (array?.byteLength) {
|
||
return array;
|
||
}
|
||
return this.#memoryArray = new Uint8Array(this._memory.buffer);
|
||
}
|
||
}
|
||
function copy_result(ptr, len) {
|
||
const {
|
||
_mustAddAlpha,
|
||
_destBuffer,
|
||
_destOffset,
|
||
_destLength,
|
||
_memoryArray
|
||
} = QCMS;
|
||
if (len === _destLength) {
|
||
_destBuffer.set(_memoryArray.subarray(ptr, ptr + len), _destOffset);
|
||
return;
|
||
}
|
||
if (_mustAddAlpha) {
|
||
for (let i = ptr, ii = ptr + len, j = _destOffset; i < ii; i += 3, j += 4) {
|
||
_destBuffer[j] = _memoryArray[i];
|
||
_destBuffer[j + 1] = _memoryArray[i + 1];
|
||
_destBuffer[j + 2] = _memoryArray[i + 2];
|
||
_destBuffer[j + 3] = 255;
|
||
}
|
||
} else {
|
||
for (let i = ptr, ii = ptr + len, j = _destOffset; i < ii; i += 3, j += 4) {
|
||
_destBuffer[j] = _memoryArray[i];
|
||
_destBuffer[j + 1] = _memoryArray[i + 1];
|
||
_destBuffer[j + 2] = _memoryArray[i + 2];
|
||
}
|
||
}
|
||
}
|
||
function copy_rgb(ptr) {
|
||
const {
|
||
_destBuffer,
|
||
_destOffset,
|
||
_memoryArray
|
||
} = QCMS;
|
||
_destBuffer[_destOffset] = _memoryArray[ptr];
|
||
_destBuffer[_destOffset + 1] = _memoryArray[ptr + 1];
|
||
_destBuffer[_destOffset + 2] = _memoryArray[ptr + 2];
|
||
}
|
||
function make_cssRGB(ptr) {
|
||
const {
|
||
_memoryArray
|
||
} = QCMS;
|
||
QCMS._cssColor = QCMS._makeHexColor(_memoryArray[ptr], _memoryArray[ptr + 1], _memoryArray[ptr + 2]);
|
||
}
|
||
|
||
;// ./external/qcms/qcms.js
|
||
|
||
const DataType = Object.freeze({
|
||
RGB8: 0,
|
||
"0": "RGB8",
|
||
RGBA8: 1,
|
||
"1": "RGBA8",
|
||
BGRA8: 2,
|
||
"2": "BGRA8",
|
||
Gray8: 3,
|
||
"3": "Gray8",
|
||
GrayA8: 4,
|
||
"4": "GrayA8",
|
||
CMYK: 5,
|
||
"5": "CMYK"
|
||
});
|
||
const Intent = Object.freeze({
|
||
Perceptual: 0,
|
||
"0": "Perceptual",
|
||
RelativeColorimetric: 1,
|
||
"1": "RelativeColorimetric",
|
||
Saturation: 2,
|
||
"2": "Saturation",
|
||
AbsoluteColorimetric: 3,
|
||
"3": "AbsoluteColorimetric"
|
||
});
|
||
function qcms_convert_array(transformer, src) {
|
||
const ptr0 = passArray8ToWasm0(src, wasm.__wbindgen_malloc);
|
||
const len0 = WASM_VECTOR_LEN;
|
||
wasm.qcms_convert_array(transformer, ptr0, len0);
|
||
}
|
||
function qcms_convert_four(transformer, src1, src2, src3, src4, css) {
|
||
wasm.qcms_convert_four(transformer, src1, src2, src3, src4, css);
|
||
}
|
||
function qcms_convert_one(transformer, src, css) {
|
||
wasm.qcms_convert_one(transformer, src, css);
|
||
}
|
||
function qcms_convert_three(transformer, src1, src2, src3, css) {
|
||
wasm.qcms_convert_three(transformer, src1, src2, src3, css);
|
||
}
|
||
function qcms_drop_transformer(transformer) {
|
||
wasm.qcms_drop_transformer(transformer);
|
||
}
|
||
function qcms_transformer_from_memory(mem, in_type, intent) {
|
||
const ptr0 = passArray8ToWasm0(mem, wasm.__wbindgen_malloc);
|
||
const len0 = WASM_VECTOR_LEN;
|
||
const ret = wasm.qcms_transformer_from_memory(ptr0, len0, in_type, intent);
|
||
return ret >>> 0;
|
||
}
|
||
function __wbg_get_imports() {
|
||
const import0 = {
|
||
__proto__: null,
|
||
__wbg___wbindgen_throw_6b64449b9b9ed33c: function (arg0, arg1) {
|
||
throw new Error(getStringFromWasm0(arg0, arg1));
|
||
},
|
||
__wbg_copy_result_0d15f3bf9d9012ae: function (arg0, arg1) {
|
||
copy_result(arg0 >>> 0, arg1 >>> 0);
|
||
},
|
||
__wbg_copy_rgb_0106d9d9464fce43: function (arg0) {
|
||
copy_rgb(arg0 >>> 0);
|
||
},
|
||
__wbg_make_cssRGB_8e24b34f71f5363e: function (arg0) {
|
||
make_cssRGB(arg0 >>> 0);
|
||
},
|
||
__wbindgen_init_externref_table: function () {
|
||
const table = wasm.__wbindgen_externrefs;
|
||
const offset = table.grow(4);
|
||
table.set(0, undefined);
|
||
table.set(offset + 0, undefined);
|
||
table.set(offset + 1, null);
|
||
table.set(offset + 2, true);
|
||
table.set(offset + 3, false);
|
||
}
|
||
};
|
||
return {
|
||
__proto__: null,
|
||
"./qcms_bg.js": import0
|
||
};
|
||
}
|
||
function getStringFromWasm0(ptr, len) {
|
||
ptr = ptr >>> 0;
|
||
return decodeText(ptr, len);
|
||
}
|
||
let cachedUint8ArrayMemory0 = null;
|
||
function getUint8ArrayMemory0() {
|
||
if (cachedUint8ArrayMemory0 === null || cachedUint8ArrayMemory0.byteLength === 0) {
|
||
cachedUint8ArrayMemory0 = new Uint8Array(wasm.memory.buffer);
|
||
}
|
||
return cachedUint8ArrayMemory0;
|
||
}
|
||
function passArray8ToWasm0(arg, malloc) {
|
||
const ptr = malloc(arg.length * 1, 1) >>> 0;
|
||
getUint8ArrayMemory0().set(arg, ptr / 1);
|
||
WASM_VECTOR_LEN = arg.length;
|
||
return ptr;
|
||
}
|
||
let cachedTextDecoder = new TextDecoder('utf-8', {
|
||
ignoreBOM: true,
|
||
fatal: true
|
||
});
|
||
cachedTextDecoder.decode();
|
||
const MAX_SAFARI_DECODE_BYTES = 2146435072;
|
||
let numBytesDecoded = 0;
|
||
function decodeText(ptr, len) {
|
||
numBytesDecoded += len;
|
||
if (numBytesDecoded >= MAX_SAFARI_DECODE_BYTES) {
|
||
cachedTextDecoder = new TextDecoder('utf-8', {
|
||
ignoreBOM: true,
|
||
fatal: true
|
||
});
|
||
cachedTextDecoder.decode();
|
||
numBytesDecoded = len;
|
||
}
|
||
return cachedTextDecoder.decode(getUint8ArrayMemory0().subarray(ptr, ptr + len));
|
||
}
|
||
let WASM_VECTOR_LEN = 0;
|
||
let wasmModule, wasm;
|
||
function __wbg_finalize_init(instance, module) {
|
||
wasm = instance.exports;
|
||
wasmModule = module;
|
||
cachedUint8ArrayMemory0 = null;
|
||
wasm.__wbindgen_start();
|
||
return wasm;
|
||
}
|
||
async function __wbg_load(module, imports) {
|
||
if (typeof Response === 'function' && module instanceof Response) {
|
||
if (typeof WebAssembly.instantiateStreaming === 'function') {
|
||
try {
|
||
return await WebAssembly.instantiateStreaming(module, imports);
|
||
} catch (e) {
|
||
const validResponse = module.ok && expectedResponseType(module.type);
|
||
if (validResponse && module.headers.get('Content-Type') !== 'application/wasm') {
|
||
console.warn("`WebAssembly.instantiateStreaming` failed because your server does not serve Wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e);
|
||
} else {
|
||
throw e;
|
||
}
|
||
}
|
||
}
|
||
const bytes = await module.arrayBuffer();
|
||
return await WebAssembly.instantiate(bytes, imports);
|
||
} else {
|
||
const instance = await WebAssembly.instantiate(module, imports);
|
||
if (instance instanceof WebAssembly.Instance) {
|
||
return {
|
||
instance,
|
||
module
|
||
};
|
||
} else {
|
||
return instance;
|
||
}
|
||
}
|
||
function expectedResponseType(type) {
|
||
switch (type) {
|
||
case 'basic':
|
||
case 'cors':
|
||
case 'default':
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
}
|
||
function initSync(module) {
|
||
if (wasm !== undefined) return wasm;
|
||
if (module !== undefined) {
|
||
if (Object.getPrototypeOf(module) === Object.prototype) {
|
||
({
|
||
module
|
||
} = module);
|
||
} else {
|
||
console.warn('using deprecated parameters for `initSync()`; pass a single object instead');
|
||
}
|
||
}
|
||
const imports = __wbg_get_imports();
|
||
if (!(module instanceof WebAssembly.Module)) {
|
||
module = new WebAssembly.Module(module);
|
||
}
|
||
const instance = new WebAssembly.Instance(module, imports);
|
||
return __wbg_finalize_init(instance, module);
|
||
}
|
||
async function __wbg_init(module_or_path) {
|
||
if (wasm !== undefined) return wasm;
|
||
if (module_or_path !== undefined) {
|
||
if (Object.getPrototypeOf(module_or_path) === Object.prototype) {
|
||
({
|
||
module_or_path
|
||
} = module_or_path);
|
||
} else {
|
||
console.warn('using deprecated parameters for the initialization function; pass a single object instead');
|
||
}
|
||
}
|
||
const imports = __wbg_get_imports();
|
||
if (typeof module_or_path === 'string' || typeof Request === 'function' && module_or_path instanceof Request || typeof URL === 'function' && module_or_path instanceof URL) {
|
||
module_or_path = fetch(module_or_path);
|
||
}
|
||
const {
|
||
instance,
|
||
module
|
||
} = await __wbg_load(await module_or_path, imports);
|
||
return __wbg_finalize_init(instance, module);
|
||
}
|
||
|
||
;// ./src/core/icc_colorspace.js
|
||
|
||
|
||
|
||
|
||
function fetchSync(url) {
|
||
const xhr = new XMLHttpRequest();
|
||
xhr.open("GET", url, false);
|
||
xhr.responseType = "arraybuffer";
|
||
xhr.send(null);
|
||
return xhr.response;
|
||
}
|
||
class IccColorSpace extends ColorSpace {
|
||
#transformer;
|
||
#convertPixel;
|
||
static #useWasm = true;
|
||
static #wasmUrl = null;
|
||
static #finalizer = null;
|
||
constructor(iccProfile, name, numComps) {
|
||
if (!IccColorSpace.isUsable) {
|
||
throw new Error("No ICC color space support");
|
||
}
|
||
super(name, numComps);
|
||
let inType;
|
||
switch (numComps) {
|
||
case 1:
|
||
inType = DataType.Gray8;
|
||
this.#convertPixel = (src, srcOffset, css) => qcms_convert_one(this.#transformer, src[srcOffset] * 255, css);
|
||
break;
|
||
case 3:
|
||
inType = DataType.RGB8;
|
||
this.#convertPixel = (src, srcOffset, css) => qcms_convert_three(this.#transformer, src[srcOffset] * 255, src[srcOffset + 1] * 255, src[srcOffset + 2] * 255, css);
|
||
break;
|
||
case 4:
|
||
inType = DataType.CMYK;
|
||
this.#convertPixel = (src, srcOffset, css) => qcms_convert_four(this.#transformer, src[srcOffset] * 255, src[srcOffset + 1] * 255, src[srcOffset + 2] * 255, src[srcOffset + 3] * 255, css);
|
||
break;
|
||
default:
|
||
throw new Error(`Unsupported number of components: ${numComps}`);
|
||
}
|
||
this.#transformer = qcms_transformer_from_memory(iccProfile, inType, Intent.Perceptual);
|
||
if (!this.#transformer) {
|
||
throw new Error("Failed to create ICC color space");
|
||
}
|
||
IccColorSpace.#finalizer ||= new FinalizationRegistry(transformer => {
|
||
qcms_drop_transformer(transformer);
|
||
});
|
||
IccColorSpace.#finalizer.register(this, this.#transformer);
|
||
}
|
||
getRgbHex(src, srcOffset) {
|
||
this.#convertPixel(src, srcOffset, true);
|
||
return QCMS._cssColor;
|
||
}
|
||
getRgbItem(src, srcOffset, dest, destOffset) {
|
||
QCMS._destBuffer = dest;
|
||
QCMS._destOffset = destOffset;
|
||
QCMS._destLength = 3;
|
||
this.#convertPixel(src, srcOffset, false);
|
||
QCMS._destBuffer = null;
|
||
}
|
||
getRgbBuffer(src, srcOffset, count, dest, destOffset, bits, alpha01) {
|
||
src = src.subarray(srcOffset, srcOffset + count * this.numComps);
|
||
if (bits !== 8) {
|
||
const scale = 255 / ((1 << bits) - 1);
|
||
for (let i = 0, ii = src.length; i < ii; i++) {
|
||
src[i] *= scale;
|
||
}
|
||
}
|
||
QCMS._mustAddAlpha = alpha01 && dest.buffer === src.buffer;
|
||
QCMS._destBuffer = dest;
|
||
QCMS._destOffset = destOffset;
|
||
QCMS._destLength = count * (3 + alpha01);
|
||
qcms_convert_array(this.#transformer, src);
|
||
QCMS._mustAddAlpha = false;
|
||
QCMS._destBuffer = null;
|
||
}
|
||
getOutputLength(inputLength, alpha01) {
|
||
return inputLength / this.numComps * (3 + alpha01) | 0;
|
||
}
|
||
static setOptions({
|
||
useWasm,
|
||
useWorkerFetch,
|
||
wasmUrl
|
||
}) {
|
||
if (!useWorkerFetch) {
|
||
this.#useWasm = false;
|
||
return;
|
||
}
|
||
this.#useWasm = useWasm;
|
||
this.#wasmUrl = wasmUrl;
|
||
}
|
||
static get isUsable() {
|
||
let isUsable = false;
|
||
if (this.#useWasm) {
|
||
if (this.#wasmUrl) {
|
||
try {
|
||
this._module = initSync({
|
||
module: fetchSync(`${this.#wasmUrl}qcms_bg.wasm`)
|
||
});
|
||
isUsable = !!this._module;
|
||
QCMS._memory = this._module.memory;
|
||
QCMS._makeHexColor = Util.makeHexColor.bind(Util);
|
||
} catch (e) {
|
||
warn(`ICCBased color space: "${e}".`);
|
||
}
|
||
} else {
|
||
warn("No ICC color space support due to missing `wasmUrl` API option");
|
||
}
|
||
}
|
||
return shadow(this, "isUsable", isUsable);
|
||
}
|
||
}
|
||
class CmykICCBasedCS extends IccColorSpace {
|
||
static #iccUrl;
|
||
constructor() {
|
||
const iccProfile = new Uint8Array(fetchSync(`${CmykICCBasedCS.#iccUrl}CGATS001Compat-v2-micro.icc`));
|
||
super(iccProfile, "DeviceCMYK", 4);
|
||
}
|
||
static setOptions({
|
||
iccUrl
|
||
}) {
|
||
this.#iccUrl = iccUrl;
|
||
}
|
||
static get isUsable() {
|
||
let isUsable = false;
|
||
if (IccColorSpace.isUsable) {
|
||
if (this.#iccUrl) {
|
||
isUsable = true;
|
||
} else {
|
||
warn("No CMYK ICC profile support due to missing `iccUrl` API option");
|
||
}
|
||
}
|
||
return shadow(this, "isUsable", isUsable);
|
||
}
|
||
}
|
||
|
||
;// ./src/core/colorspace_utils.js
|
||
|
||
|
||
|
||
|
||
|
||
|
||
class ColorSpaceUtils {
|
||
static parse({
|
||
cs,
|
||
xref,
|
||
resources = null,
|
||
pdfFunctionFactory,
|
||
globalColorSpaceCache,
|
||
localColorSpaceCache,
|
||
asyncIfNotCached = false
|
||
}) {
|
||
const options = {
|
||
xref,
|
||
resources,
|
||
pdfFunctionFactory,
|
||
globalColorSpaceCache,
|
||
localColorSpaceCache
|
||
};
|
||
let csName, csRef, parsedCS;
|
||
if (cs instanceof Ref) {
|
||
csRef = cs;
|
||
const cachedCS = globalColorSpaceCache.getByRef(csRef) || localColorSpaceCache.getByRef(csRef);
|
||
if (cachedCS) {
|
||
return cachedCS;
|
||
}
|
||
cs = xref.fetch(cs);
|
||
}
|
||
if (cs instanceof Name) {
|
||
csName = cs.name;
|
||
const cachedCS = localColorSpaceCache.getByName(csName);
|
||
if (cachedCS) {
|
||
return cachedCS;
|
||
}
|
||
}
|
||
try {
|
||
parsedCS = this.#parse(cs, options);
|
||
} catch (ex) {
|
||
if (asyncIfNotCached && !(ex instanceof MissingDataException)) {
|
||
return Promise.reject(ex);
|
||
}
|
||
throw ex;
|
||
}
|
||
if (csName || csRef) {
|
||
localColorSpaceCache.set(csName, csRef, parsedCS);
|
||
if (csRef) {
|
||
globalColorSpaceCache.set(null, csRef, parsedCS);
|
||
}
|
||
}
|
||
return asyncIfNotCached ? Promise.resolve(parsedCS) : parsedCS;
|
||
}
|
||
static #subParse(cs, options) {
|
||
const {
|
||
globalColorSpaceCache
|
||
} = options;
|
||
let csRef;
|
||
if (cs instanceof Ref) {
|
||
csRef = cs;
|
||
const cachedCS = globalColorSpaceCache.getByRef(csRef);
|
||
if (cachedCS) {
|
||
return cachedCS;
|
||
}
|
||
}
|
||
const parsedCS = this.#parse(cs, options);
|
||
if (csRef) {
|
||
globalColorSpaceCache.set(null, csRef, parsedCS);
|
||
}
|
||
return parsedCS;
|
||
}
|
||
static #parse(cs, options) {
|
||
const {
|
||
xref,
|
||
resources,
|
||
pdfFunctionFactory,
|
||
globalColorSpaceCache
|
||
} = options;
|
||
cs = xref.fetchIfRef(cs);
|
||
if (cs instanceof Name) {
|
||
switch (cs.name) {
|
||
case "G":
|
||
case "DeviceGray":
|
||
return this.gray;
|
||
case "RGB":
|
||
case "DeviceRGB":
|
||
return this.rgb;
|
||
case "DeviceRGBA":
|
||
return this.rgba;
|
||
case "CMYK":
|
||
case "DeviceCMYK":
|
||
return this.cmyk;
|
||
case "Pattern":
|
||
return new PatternCS(null);
|
||
default:
|
||
if (resources instanceof Dict) {
|
||
const colorSpaces = resources.get("ColorSpace");
|
||
if (colorSpaces instanceof Dict) {
|
||
const resourcesCS = colorSpaces.get(cs.name);
|
||
if (resourcesCS) {
|
||
if (resourcesCS instanceof Name) {
|
||
return this.#parse(resourcesCS, options);
|
||
}
|
||
cs = resourcesCS;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
warn(`Unrecognized ColorSpace: ${cs.name}`);
|
||
return this.gray;
|
||
}
|
||
}
|
||
if (Array.isArray(cs)) {
|
||
const mode = xref.fetchIfRef(cs[0]).name;
|
||
let params, numComps, baseCS, whitePoint, blackPoint, gamma;
|
||
switch (mode) {
|
||
case "G":
|
||
case "DeviceGray":
|
||
return this.gray;
|
||
case "RGB":
|
||
case "DeviceRGB":
|
||
return this.rgb;
|
||
case "CMYK":
|
||
case "DeviceCMYK":
|
||
return this.cmyk;
|
||
case "CalGray":
|
||
params = xref.fetchIfRef(cs[1]);
|
||
whitePoint = params.getArray("WhitePoint");
|
||
blackPoint = params.getArray("BlackPoint");
|
||
gamma = params.get("Gamma");
|
||
return new CalGrayCS(whitePoint, blackPoint, gamma);
|
||
case "CalRGB":
|
||
params = xref.fetchIfRef(cs[1]);
|
||
whitePoint = params.getArray("WhitePoint");
|
||
blackPoint = params.getArray("BlackPoint");
|
||
gamma = params.getArray("Gamma");
|
||
const matrix = params.getArray("Matrix");
|
||
return new CalRGBCS(whitePoint, blackPoint, gamma, matrix);
|
||
case "ICCBased":
|
||
const isRef = cs[1] instanceof Ref;
|
||
if (isRef) {
|
||
const cachedCS = globalColorSpaceCache.getByRef(cs[1]);
|
||
if (cachedCS) {
|
||
return cachedCS;
|
||
}
|
||
}
|
||
const stream = xref.fetchIfRef(cs[1]);
|
||
const dict = stream.dict;
|
||
numComps = dict.get("N");
|
||
if (IccColorSpace.isUsable) {
|
||
try {
|
||
const iccCS = new IccColorSpace(stream.getBytes(), "ICCBased", numComps);
|
||
if (isRef) {
|
||
globalColorSpaceCache.set(null, cs[1], iccCS);
|
||
}
|
||
return iccCS;
|
||
} catch (ex) {
|
||
if (ex instanceof MissingDataException) {
|
||
throw ex;
|
||
}
|
||
warn(`ICCBased color space (${cs[1]}): "${ex}".`);
|
||
}
|
||
}
|
||
const altRaw = dict.getRaw("Alternate");
|
||
if (altRaw) {
|
||
const altCS = this.#subParse(altRaw, options);
|
||
if (altCS.numComps === numComps) {
|
||
return altCS;
|
||
}
|
||
warn("ICCBased color space: Ignoring incorrect /Alternate entry.");
|
||
}
|
||
if (numComps === 1) {
|
||
return this.gray;
|
||
} else if (numComps === 3) {
|
||
return this.rgb;
|
||
} else if (numComps === 4) {
|
||
return this.cmyk;
|
||
}
|
||
break;
|
||
case "Pattern":
|
||
baseCS = cs[1] || null;
|
||
if (baseCS) {
|
||
baseCS = this.#subParse(baseCS, options);
|
||
}
|
||
return new PatternCS(baseCS);
|
||
case "I":
|
||
case "Indexed":
|
||
baseCS = this.#subParse(cs[1], options);
|
||
const hiVal = MathClamp(xref.fetchIfRef(cs[2]), 0, 255);
|
||
const lookup = xref.fetchIfRef(cs[3]);
|
||
return new IndexedCS(baseCS, hiVal, lookup);
|
||
case "Separation":
|
||
case "DeviceN":
|
||
const name = xref.fetchIfRef(cs[1]);
|
||
numComps = Array.isArray(name) ? name.length : 1;
|
||
baseCS = this.#subParse(cs[2], options);
|
||
const tintFn = pdfFunctionFactory.create(cs[3]);
|
||
return new AlternateCS(numComps, baseCS, tintFn);
|
||
case "Lab":
|
||
params = xref.fetchIfRef(cs[1]);
|
||
whitePoint = params.getArray("WhitePoint");
|
||
blackPoint = params.getArray("BlackPoint");
|
||
const range = params.getArray("Range");
|
||
return new LabCS(whitePoint, blackPoint, range);
|
||
default:
|
||
warn(`Unimplemented ColorSpace object: ${mode}`);
|
||
return this.gray;
|
||
}
|
||
}
|
||
warn(`Unrecognized ColorSpace object: ${cs}`);
|
||
return this.gray;
|
||
}
|
||
static get gray() {
|
||
return shadow(this, "gray", new DeviceGrayCS());
|
||
}
|
||
static get rgb() {
|
||
return shadow(this, "rgb", new DeviceRgbCS());
|
||
}
|
||
static get rgba() {
|
||
return shadow(this, "rgba", new DeviceRgbaCS());
|
||
}
|
||
static get cmyk() {
|
||
if (CmykICCBasedCS.isUsable) {
|
||
try {
|
||
return shadow(this, "cmyk", new CmykICCBasedCS());
|
||
} catch {
|
||
warn("CMYK fallback: DeviceCMYK");
|
||
}
|
||
}
|
||
return shadow(this, "cmyk", new DeviceCmykCS());
|
||
}
|
||
}
|
||
|
||
;// ./src/shared/image_utils.js
|
||
/* unused harmony import specifier */ var image_utils_ImageKind;
|
||
/* unused harmony import specifier */ var image_utils_FeatureTest;
|
||
|
||
function convertToRGBA(params) {
|
||
switch (params.kind) {
|
||
case image_utils_ImageKind.GRAYSCALE_1BPP:
|
||
return convertBlackAndWhiteToRGBA(params);
|
||
case image_utils_ImageKind.RGB_24BPP:
|
||
return convertRGBToRGBA(params);
|
||
}
|
||
return null;
|
||
}
|
||
function convertBlackAndWhiteToRGBA({
|
||
src,
|
||
srcPos = 0,
|
||
dest,
|
||
width,
|
||
height,
|
||
nonBlackColor = 0xffffffff,
|
||
inverseDecode = false
|
||
}) {
|
||
const black = image_utils_FeatureTest.isLittleEndian ? 0xff000000 : 0x000000ff;
|
||
const [zeroMapping, oneMapping] = inverseDecode ? [nonBlackColor, black] : [black, nonBlackColor];
|
||
const widthInSource = width >> 3;
|
||
const widthRemainder = width & 7;
|
||
const xorMask = zeroMapping ^ oneMapping;
|
||
const srcLength = src.length;
|
||
dest = new Uint32Array(dest.buffer);
|
||
let destPos = 0;
|
||
for (let i = 0; i < height; ++i) {
|
||
for (const max = srcPos + widthInSource; srcPos < max; ++srcPos, destPos += 8) {
|
||
const elem = src[srcPos];
|
||
dest[destPos] = zeroMapping ^ -(elem >> 7 & 1) & xorMask;
|
||
dest[destPos + 1] = zeroMapping ^ -(elem >> 6 & 1) & xorMask;
|
||
dest[destPos + 2] = zeroMapping ^ -(elem >> 5 & 1) & xorMask;
|
||
dest[destPos + 3] = zeroMapping ^ -(elem >> 4 & 1) & xorMask;
|
||
dest[destPos + 4] = zeroMapping ^ -(elem >> 3 & 1) & xorMask;
|
||
dest[destPos + 5] = zeroMapping ^ -(elem >> 2 & 1) & xorMask;
|
||
dest[destPos + 6] = zeroMapping ^ -(elem >> 1 & 1) & xorMask;
|
||
dest[destPos + 7] = zeroMapping ^ -(elem & 1) & xorMask;
|
||
}
|
||
if (widthRemainder === 0) {
|
||
continue;
|
||
}
|
||
const elem = srcPos < srcLength ? src[srcPos++] : 255;
|
||
for (let j = 0; j < widthRemainder; ++j, ++destPos) {
|
||
dest[destPos] = zeroMapping ^ -(elem >> 7 - j & 1) & xorMask;
|
||
}
|
||
}
|
||
return {
|
||
srcPos,
|
||
destPos
|
||
};
|
||
}
|
||
function convertRGBToRGBA({
|
||
src,
|
||
srcPos = 0,
|
||
dest,
|
||
destPos = 0,
|
||
width,
|
||
height
|
||
}) {
|
||
let i = 0;
|
||
const len = width * height * 3;
|
||
const len32 = len >> 2;
|
||
const src32 = new Uint32Array(src.buffer, srcPos, len32);
|
||
const alphaMask = image_utils_FeatureTest.isLittleEndian ? 0xff000000 : 0xff;
|
||
if (image_utils_FeatureTest.isLittleEndian) {
|
||
for (; i < len32 - 2; i += 3, destPos += 4) {
|
||
const s1 = src32[i],
|
||
s2 = src32[i + 1],
|
||
s3 = src32[i + 2];
|
||
dest[destPos] = s1 | alphaMask;
|
||
dest[destPos + 1] = s1 >>> 24 | s2 << 8 | alphaMask;
|
||
dest[destPos + 2] = s2 >>> 16 | s3 << 16 | alphaMask;
|
||
dest[destPos + 3] = s3 >>> 8 | alphaMask;
|
||
}
|
||
for (let j = i * 4, jj = srcPos + len; j < jj; j += 3) {
|
||
dest[destPos++] = src[j] | src[j + 1] << 8 | src[j + 2] << 16 | alphaMask;
|
||
}
|
||
} else {
|
||
for (; i < len32 - 2; i += 3, destPos += 4) {
|
||
const s1 = src32[i],
|
||
s2 = src32[i + 1],
|
||
s3 = src32[i + 2];
|
||
dest[destPos] = s1 | alphaMask;
|
||
dest[destPos + 1] = s1 << 24 | s2 >>> 8 | alphaMask;
|
||
dest[destPos + 2] = s2 << 16 | s3 >>> 16 | alphaMask;
|
||
dest[destPos + 3] = s3 << 8 | alphaMask;
|
||
}
|
||
for (let j = i * 4, jj = srcPos + len; j < jj; j += 3) {
|
||
dest[destPos++] = src[j] << 24 | src[j + 1] << 16 | src[j + 2] << 8 | alphaMask;
|
||
}
|
||
}
|
||
return {
|
||
srcPos: srcPos + len,
|
||
destPos
|
||
};
|
||
}
|
||
function grayToRGBA(src, dest) {
|
||
if (FeatureTest.isLittleEndian) {
|
||
for (let i = 0, ii = src.length; i < ii; i++) {
|
||
dest[i] = src[i] * 0x10101 | 0xff000000;
|
||
}
|
||
} else {
|
||
for (let i = 0, ii = src.length; i < ii; i++) {
|
||
dest[i] = src[i] * 0x1010100 | 0x000000ff;
|
||
}
|
||
}
|
||
}
|
||
|
||
;// ./src/core/jpg.js
|
||
|
||
|
||
|
||
|
||
class JpegError extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "JpegError");
|
||
}
|
||
}
|
||
class DNLMarkerError extends BaseException {
|
||
constructor(message, scanLines) {
|
||
super(message, "DNLMarkerError");
|
||
this.scanLines = scanLines;
|
||
}
|
||
}
|
||
class EOIMarkerError extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "EOIMarkerError");
|
||
}
|
||
}
|
||
const dctZigZag = new Uint8Array([0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40, 48, 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23, 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63]);
|
||
const dctCos1 = 4017;
|
||
const dctSin1 = 799;
|
||
const dctCos3 = 3406;
|
||
const dctSin3 = 2276;
|
||
const dctCos6 = 1567;
|
||
const dctSin6 = 3784;
|
||
const dctSqrt2 = 5793;
|
||
const dctSqrt1d2 = 2896;
|
||
function buildHuffmanTable(codeLengths, values) {
|
||
let k = 0,
|
||
i,
|
||
j,
|
||
length = 16;
|
||
while (length > 0 && !codeLengths[length - 1]) {
|
||
length--;
|
||
}
|
||
const code = [{
|
||
children: [],
|
||
index: 0
|
||
}];
|
||
let p = code[0],
|
||
q;
|
||
for (i = 0; i < length; i++) {
|
||
for (j = 0; j < codeLengths[i]; j++) {
|
||
p = code.pop();
|
||
p.children[p.index] = values[k];
|
||
while (p.index > 0) {
|
||
p = code.pop();
|
||
}
|
||
p.index++;
|
||
code.push(p);
|
||
while (code.length <= i) {
|
||
code.push(q = {
|
||
children: [],
|
||
index: 0
|
||
});
|
||
p.children[p.index] = q.children;
|
||
p = q;
|
||
}
|
||
k++;
|
||
}
|
||
if (i + 1 < length) {
|
||
code.push(q = {
|
||
children: [],
|
||
index: 0
|
||
});
|
||
p.children[p.index] = q.children;
|
||
p = q;
|
||
}
|
||
}
|
||
return code[0].children;
|
||
}
|
||
function getBlockBufferOffset(component, row, col) {
|
||
return 64 * ((component.blocksPerLine + 1) * row + col);
|
||
}
|
||
function decodeScan(data, view, offset, frame, components, resetInterval, spectralStart, spectralEnd, successivePrev, successive, parseDNLMarker = false) {
|
||
const mcusPerLine = frame.mcusPerLine;
|
||
const progressive = frame.progressive;
|
||
const startOffset = offset;
|
||
let bitsData = 0,
|
||
bitsCount = 0;
|
||
function readBit() {
|
||
if (bitsCount > 0) {
|
||
bitsCount--;
|
||
return bitsData >> bitsCount & 1;
|
||
}
|
||
bitsData = data[offset++];
|
||
if (bitsData === 0xff) {
|
||
const nextByte = data[offset++];
|
||
if (nextByte) {
|
||
if (nextByte === 0xdc && parseDNLMarker) {
|
||
offset += 2;
|
||
const scanLines = view.getUint16(offset);
|
||
offset += 2;
|
||
if (scanLines > 0 && scanLines !== frame.scanLines) {
|
||
throw new DNLMarkerError("Found DNL marker (0xFFDC) while parsing scan data", scanLines);
|
||
}
|
||
} else if (nextByte === 0xd9) {
|
||
if (parseDNLMarker) {
|
||
const maybeScanLines = blockRow * (frame.precision === 8 ? 8 : 0);
|
||
if (maybeScanLines > 0 && Math.round(frame.scanLines / maybeScanLines) >= 5) {
|
||
throw new DNLMarkerError("Found EOI marker (0xFFD9) while parsing scan data, " + "possibly caused by incorrect `scanLines` parameter", maybeScanLines);
|
||
}
|
||
}
|
||
throw new EOIMarkerError("Found EOI marker (0xFFD9) while parsing scan data");
|
||
}
|
||
throw new JpegError(`unexpected marker ${(bitsData << 8 | nextByte).toString(16)}`);
|
||
}
|
||
}
|
||
bitsCount = 7;
|
||
return bitsData >>> 7;
|
||
}
|
||
function decodeHuffman(tree) {
|
||
let node = tree;
|
||
while (true) {
|
||
node = node[readBit()];
|
||
switch (typeof node) {
|
||
case "number":
|
||
return node;
|
||
case "object":
|
||
continue;
|
||
}
|
||
throw new JpegError("invalid huffman sequence");
|
||
}
|
||
}
|
||
function receive(length) {
|
||
let n = 0;
|
||
while (length > 0) {
|
||
n = n << 1 | readBit();
|
||
length--;
|
||
}
|
||
return n;
|
||
}
|
||
function receiveAndExtend(length) {
|
||
if (length === 1) {
|
||
return readBit() === 1 ? 1 : -1;
|
||
}
|
||
const n = receive(length);
|
||
if (n >= 1 << length - 1) {
|
||
return n;
|
||
}
|
||
return n + (-1 << length) + 1;
|
||
}
|
||
function decodeBaseline(component, blockOffset) {
|
||
const t = decodeHuffman(component.huffmanTableDC);
|
||
const diff = t === 0 ? 0 : receiveAndExtend(t);
|
||
component.blockData[blockOffset] = component.pred += diff;
|
||
let k = 1;
|
||
while (k < 64) {
|
||
const rs = decodeHuffman(component.huffmanTableAC);
|
||
const s = rs & 15,
|
||
r = rs >> 4;
|
||
if (s === 0) {
|
||
if (r < 15) {
|
||
break;
|
||
}
|
||
k += 16;
|
||
continue;
|
||
}
|
||
k += r;
|
||
const z = dctZigZag[k];
|
||
component.blockData[blockOffset + z] = receiveAndExtend(s);
|
||
k++;
|
||
}
|
||
}
|
||
function decodeDCFirst(component, blockOffset) {
|
||
const t = decodeHuffman(component.huffmanTableDC);
|
||
const diff = t === 0 ? 0 : receiveAndExtend(t) << successive;
|
||
component.blockData[blockOffset] = component.pred += diff;
|
||
}
|
||
function decodeDCSuccessive(component, blockOffset) {
|
||
component.blockData[blockOffset] |= readBit() << successive;
|
||
}
|
||
let eobrun = 0;
|
||
function decodeACFirst(component, blockOffset) {
|
||
if (eobrun > 0) {
|
||
eobrun--;
|
||
return;
|
||
}
|
||
let k = spectralStart;
|
||
const e = spectralEnd;
|
||
while (k <= e) {
|
||
const rs = decodeHuffman(component.huffmanTableAC);
|
||
const s = rs & 15,
|
||
r = rs >> 4;
|
||
if (s === 0) {
|
||
if (r < 15) {
|
||
eobrun = receive(r) + (1 << r) - 1;
|
||
break;
|
||
}
|
||
k += 16;
|
||
continue;
|
||
}
|
||
k += r;
|
||
const z = dctZigZag[k];
|
||
component.blockData[blockOffset + z] = receiveAndExtend(s) * (1 << successive);
|
||
k++;
|
||
}
|
||
}
|
||
let successiveACState = 0,
|
||
successiveACNextValue;
|
||
function decodeACSuccessive(component, blockOffset) {
|
||
let k = spectralStart;
|
||
const e = spectralEnd;
|
||
let r = 0;
|
||
let s;
|
||
let rs;
|
||
while (k <= e) {
|
||
const offsetZ = blockOffset + dctZigZag[k];
|
||
const sign = component.blockData[offsetZ] < 0 ? -1 : 1;
|
||
switch (successiveACState) {
|
||
case 0:
|
||
rs = decodeHuffman(component.huffmanTableAC);
|
||
s = rs & 15;
|
||
r = rs >> 4;
|
||
if (s === 0) {
|
||
if (r < 15) {
|
||
eobrun = receive(r) + (1 << r);
|
||
successiveACState = 4;
|
||
} else {
|
||
r = 16;
|
||
successiveACState = 1;
|
||
}
|
||
} else {
|
||
if (s !== 1) {
|
||
throw new JpegError("invalid ACn encoding");
|
||
}
|
||
successiveACNextValue = receiveAndExtend(s);
|
||
successiveACState = r ? 2 : 3;
|
||
}
|
||
continue;
|
||
case 1:
|
||
case 2:
|
||
if (component.blockData[offsetZ]) {
|
||
component.blockData[offsetZ] += sign * (readBit() << successive);
|
||
} else {
|
||
r--;
|
||
if (r === 0) {
|
||
successiveACState = successiveACState === 2 ? 3 : 0;
|
||
}
|
||
}
|
||
break;
|
||
case 3:
|
||
if (component.blockData[offsetZ]) {
|
||
component.blockData[offsetZ] += sign * (readBit() << successive);
|
||
} else {
|
||
component.blockData[offsetZ] = successiveACNextValue << successive;
|
||
successiveACState = 0;
|
||
}
|
||
break;
|
||
case 4:
|
||
if (component.blockData[offsetZ]) {
|
||
component.blockData[offsetZ] += sign * (readBit() << successive);
|
||
}
|
||
break;
|
||
}
|
||
k++;
|
||
}
|
||
if (successiveACState === 4) {
|
||
eobrun--;
|
||
if (eobrun === 0) {
|
||
successiveACState = 0;
|
||
}
|
||
}
|
||
}
|
||
let blockRow = 0;
|
||
function decodeMcu(component, decode, mcu, row, col) {
|
||
const mcuRow = mcu / mcusPerLine | 0;
|
||
const mcuCol = mcu % mcusPerLine;
|
||
blockRow = mcuRow * component.v + row;
|
||
const blockCol = mcuCol * component.h + col;
|
||
const blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
|
||
decode(component, blockOffset);
|
||
}
|
||
function decodeBlock(component, decode, mcu) {
|
||
blockRow = mcu / component.blocksPerLine | 0;
|
||
const blockCol = mcu % component.blocksPerLine;
|
||
const blockOffset = getBlockBufferOffset(component, blockRow, blockCol);
|
||
decode(component, blockOffset);
|
||
}
|
||
const componentsLength = components.length;
|
||
let component, i, j, k, n;
|
||
let decodeFn;
|
||
if (progressive) {
|
||
if (spectralStart === 0) {
|
||
decodeFn = successivePrev === 0 ? decodeDCFirst : decodeDCSuccessive;
|
||
} else {
|
||
decodeFn = successivePrev === 0 ? decodeACFirst : decodeACSuccessive;
|
||
}
|
||
} else {
|
||
decodeFn = decodeBaseline;
|
||
}
|
||
let mcu = 0,
|
||
fileMarker;
|
||
const mcuExpected = componentsLength === 1 ? components[0].blocksPerLine * components[0].blocksPerColumn : mcusPerLine * frame.mcusPerColumn;
|
||
let h, v;
|
||
while (mcu <= mcuExpected) {
|
||
const mcuToRead = resetInterval ? Math.min(mcuExpected - mcu, resetInterval) : mcuExpected;
|
||
if (mcuToRead > 0) {
|
||
for (i = 0; i < componentsLength; i++) {
|
||
components[i].pred = 0;
|
||
}
|
||
eobrun = 0;
|
||
if (componentsLength === 1) {
|
||
component = components[0];
|
||
for (n = 0; n < mcuToRead; n++) {
|
||
decodeBlock(component, decodeFn, mcu);
|
||
mcu++;
|
||
}
|
||
} else {
|
||
for (n = 0; n < mcuToRead; n++) {
|
||
for (i = 0; i < componentsLength; i++) {
|
||
component = components[i];
|
||
h = component.h;
|
||
v = component.v;
|
||
for (j = 0; j < v; j++) {
|
||
for (k = 0; k < h; k++) {
|
||
decodeMcu(component, decodeFn, mcu, j, k);
|
||
}
|
||
}
|
||
}
|
||
mcu++;
|
||
}
|
||
}
|
||
}
|
||
bitsCount = 0;
|
||
fileMarker = findNextFileMarker(data, view, offset);
|
||
if (!fileMarker) {
|
||
break;
|
||
}
|
||
if (fileMarker.invalid) {
|
||
const partialMsg = mcuToRead > 0 ? "unexpected" : "excessive";
|
||
warn(`decodeScan - ${partialMsg} MCU data, current marker is: ${fileMarker.invalid}`);
|
||
offset = fileMarker.offset;
|
||
}
|
||
if (fileMarker.marker >= 0xffd0 && fileMarker.marker <= 0xffd7) {
|
||
offset += 2;
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
return offset - startOffset;
|
||
}
|
||
function quantizeAndInverse(component, blockBufferOffset, p) {
|
||
const qt = component.quantizationTable,
|
||
blockData = component.blockData;
|
||
let v0, v1, v2, v3, v4, v5, v6, v7;
|
||
let p0, p1, p2, p3, p4, p5, p6, p7;
|
||
let t;
|
||
if (!qt) {
|
||
throw new JpegError("missing required Quantization Table.");
|
||
}
|
||
for (let row = 0; row < 64; row += 8) {
|
||
p0 = blockData[blockBufferOffset + row];
|
||
p1 = blockData[blockBufferOffset + row + 1];
|
||
p2 = blockData[blockBufferOffset + row + 2];
|
||
p3 = blockData[blockBufferOffset + row + 3];
|
||
p4 = blockData[blockBufferOffset + row + 4];
|
||
p5 = blockData[blockBufferOffset + row + 5];
|
||
p6 = blockData[blockBufferOffset + row + 6];
|
||
p7 = blockData[blockBufferOffset + row + 7];
|
||
p0 *= qt[row];
|
||
if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
|
||
t = dctSqrt2 * p0 + 512 >> 10;
|
||
p[row] = t;
|
||
p[row + 1] = t;
|
||
p[row + 2] = t;
|
||
p[row + 3] = t;
|
||
p[row + 4] = t;
|
||
p[row + 5] = t;
|
||
p[row + 6] = t;
|
||
p[row + 7] = t;
|
||
continue;
|
||
}
|
||
p1 *= qt[row + 1];
|
||
p2 *= qt[row + 2];
|
||
p3 *= qt[row + 3];
|
||
p4 *= qt[row + 4];
|
||
p5 *= qt[row + 5];
|
||
p6 *= qt[row + 6];
|
||
p7 *= qt[row + 7];
|
||
v0 = dctSqrt2 * p0 + 128 >> 8;
|
||
v1 = dctSqrt2 * p4 + 128 >> 8;
|
||
v2 = p2;
|
||
v3 = p6;
|
||
v4 = dctSqrt1d2 * (p1 - p7) + 128 >> 8;
|
||
v7 = dctSqrt1d2 * (p1 + p7) + 128 >> 8;
|
||
v5 = p3 << 4;
|
||
v6 = p5 << 4;
|
||
v0 = v0 + v1 + 1 >> 1;
|
||
v1 = v0 - v1;
|
||
t = v2 * dctSin6 + v3 * dctCos6 + 128 >> 8;
|
||
v2 = v2 * dctCos6 - v3 * dctSin6 + 128 >> 8;
|
||
v3 = t;
|
||
v4 = v4 + v6 + 1 >> 1;
|
||
v6 = v4 - v6;
|
||
v7 = v7 + v5 + 1 >> 1;
|
||
v5 = v7 - v5;
|
||
v0 = v0 + v3 + 1 >> 1;
|
||
v3 = v0 - v3;
|
||
v1 = v1 + v2 + 1 >> 1;
|
||
v2 = v1 - v2;
|
||
t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
|
||
v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
|
||
v7 = t;
|
||
t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
|
||
v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
|
||
v6 = t;
|
||
p[row] = v0 + v7;
|
||
p[row + 7] = v0 - v7;
|
||
p[row + 1] = v1 + v6;
|
||
p[row + 6] = v1 - v6;
|
||
p[row + 2] = v2 + v5;
|
||
p[row + 5] = v2 - v5;
|
||
p[row + 3] = v3 + v4;
|
||
p[row + 4] = v3 - v4;
|
||
}
|
||
for (let col = 0; col < 8; ++col) {
|
||
p0 = p[col];
|
||
p1 = p[col + 8];
|
||
p2 = p[col + 16];
|
||
p3 = p[col + 24];
|
||
p4 = p[col + 32];
|
||
p5 = p[col + 40];
|
||
p6 = p[col + 48];
|
||
p7 = p[col + 56];
|
||
if ((p1 | p2 | p3 | p4 | p5 | p6 | p7) === 0) {
|
||
t = dctSqrt2 * p0 + 8192 >> 14;
|
||
if (t < -2040) {
|
||
t = 0;
|
||
} else if (t >= 2024) {
|
||
t = 255;
|
||
} else {
|
||
t = t + 2056 >> 4;
|
||
}
|
||
blockData[blockBufferOffset + col] = t;
|
||
blockData[blockBufferOffset + col + 8] = t;
|
||
blockData[blockBufferOffset + col + 16] = t;
|
||
blockData[blockBufferOffset + col + 24] = t;
|
||
blockData[blockBufferOffset + col + 32] = t;
|
||
blockData[blockBufferOffset + col + 40] = t;
|
||
blockData[blockBufferOffset + col + 48] = t;
|
||
blockData[blockBufferOffset + col + 56] = t;
|
||
continue;
|
||
}
|
||
v0 = dctSqrt2 * p0 + 2048 >> 12;
|
||
v1 = dctSqrt2 * p4 + 2048 >> 12;
|
||
v2 = p2;
|
||
v3 = p6;
|
||
v4 = dctSqrt1d2 * (p1 - p7) + 2048 >> 12;
|
||
v7 = dctSqrt1d2 * (p1 + p7) + 2048 >> 12;
|
||
v5 = p3;
|
||
v6 = p5;
|
||
v0 = (v0 + v1 + 1 >> 1) + 4112;
|
||
v1 = v0 - v1;
|
||
t = v2 * dctSin6 + v3 * dctCos6 + 2048 >> 12;
|
||
v2 = v2 * dctCos6 - v3 * dctSin6 + 2048 >> 12;
|
||
v3 = t;
|
||
v4 = v4 + v6 + 1 >> 1;
|
||
v6 = v4 - v6;
|
||
v7 = v7 + v5 + 1 >> 1;
|
||
v5 = v7 - v5;
|
||
v0 = v0 + v3 + 1 >> 1;
|
||
v3 = v0 - v3;
|
||
v1 = v1 + v2 + 1 >> 1;
|
||
v2 = v1 - v2;
|
||
t = v4 * dctSin3 + v7 * dctCos3 + 2048 >> 12;
|
||
v4 = v4 * dctCos3 - v7 * dctSin3 + 2048 >> 12;
|
||
v7 = t;
|
||
t = v5 * dctSin1 + v6 * dctCos1 + 2048 >> 12;
|
||
v5 = v5 * dctCos1 - v6 * dctSin1 + 2048 >> 12;
|
||
v6 = t;
|
||
p0 = v0 + v7;
|
||
p7 = v0 - v7;
|
||
p1 = v1 + v6;
|
||
p6 = v1 - v6;
|
||
p2 = v2 + v5;
|
||
p5 = v2 - v5;
|
||
p3 = v3 + v4;
|
||
p4 = v3 - v4;
|
||
if (p0 < 16) {
|
||
p0 = 0;
|
||
} else if (p0 >= 4080) {
|
||
p0 = 255;
|
||
} else {
|
||
p0 >>= 4;
|
||
}
|
||
if (p1 < 16) {
|
||
p1 = 0;
|
||
} else if (p1 >= 4080) {
|
||
p1 = 255;
|
||
} else {
|
||
p1 >>= 4;
|
||
}
|
||
if (p2 < 16) {
|
||
p2 = 0;
|
||
} else if (p2 >= 4080) {
|
||
p2 = 255;
|
||
} else {
|
||
p2 >>= 4;
|
||
}
|
||
if (p3 < 16) {
|
||
p3 = 0;
|
||
} else if (p3 >= 4080) {
|
||
p3 = 255;
|
||
} else {
|
||
p3 >>= 4;
|
||
}
|
||
if (p4 < 16) {
|
||
p4 = 0;
|
||
} else if (p4 >= 4080) {
|
||
p4 = 255;
|
||
} else {
|
||
p4 >>= 4;
|
||
}
|
||
if (p5 < 16) {
|
||
p5 = 0;
|
||
} else if (p5 >= 4080) {
|
||
p5 = 255;
|
||
} else {
|
||
p5 >>= 4;
|
||
}
|
||
if (p6 < 16) {
|
||
p6 = 0;
|
||
} else if (p6 >= 4080) {
|
||
p6 = 255;
|
||
} else {
|
||
p6 >>= 4;
|
||
}
|
||
if (p7 < 16) {
|
||
p7 = 0;
|
||
} else if (p7 >= 4080) {
|
||
p7 = 255;
|
||
} else {
|
||
p7 >>= 4;
|
||
}
|
||
blockData[blockBufferOffset + col] = p0;
|
||
blockData[blockBufferOffset + col + 8] = p1;
|
||
blockData[blockBufferOffset + col + 16] = p2;
|
||
blockData[blockBufferOffset + col + 24] = p3;
|
||
blockData[blockBufferOffset + col + 32] = p4;
|
||
blockData[blockBufferOffset + col + 40] = p5;
|
||
blockData[blockBufferOffset + col + 48] = p6;
|
||
blockData[blockBufferOffset + col + 56] = p7;
|
||
}
|
||
}
|
||
function buildComponentData(frame, component) {
|
||
const blocksPerLine = component.blocksPerLine;
|
||
const blocksPerColumn = component.blocksPerColumn;
|
||
const computationBuffer = new Int16Array(64);
|
||
for (let blockRow = 0; blockRow < blocksPerColumn; blockRow++) {
|
||
for (let blockCol = 0; blockCol < blocksPerLine; blockCol++) {
|
||
const offset = getBlockBufferOffset(component, blockRow, blockCol);
|
||
quantizeAndInverse(component, offset, computationBuffer);
|
||
}
|
||
}
|
||
return component.blockData;
|
||
}
|
||
function findNextFileMarker(data, view, currentPos, startPos = currentPos) {
|
||
const maxPos = data.length - 1;
|
||
let newPos = startPos < currentPos ? startPos : currentPos;
|
||
if (currentPos >= maxPos) {
|
||
return null;
|
||
}
|
||
const currentMarker = view.getUint16(currentPos);
|
||
if (currentMarker >= 0xffc0 && currentMarker <= 0xfffe) {
|
||
return {
|
||
invalid: null,
|
||
marker: currentMarker,
|
||
offset: currentPos
|
||
};
|
||
}
|
||
let newMarker = view.getUint16(newPos);
|
||
while (!(newMarker >= 0xffc0 && newMarker <= 0xfffe)) {
|
||
if (++newPos >= maxPos) {
|
||
return null;
|
||
}
|
||
newMarker = view.getUint16(newPos);
|
||
}
|
||
return {
|
||
invalid: currentMarker.toString(16),
|
||
marker: newMarker,
|
||
offset: newPos
|
||
};
|
||
}
|
||
function prepareComponents(frame) {
|
||
const mcusPerLine = Math.ceil(frame.samplesPerLine / 8 / frame.maxH);
|
||
const mcusPerColumn = Math.ceil(frame.scanLines / 8 / frame.maxV);
|
||
for (const component of frame.components) {
|
||
const blocksPerLine = Math.ceil(Math.ceil(frame.samplesPerLine / 8) * component.h / frame.maxH);
|
||
const blocksPerColumn = Math.ceil(Math.ceil(frame.scanLines / 8) * component.v / frame.maxV);
|
||
const blocksPerLineForMcu = mcusPerLine * component.h;
|
||
const blocksPerColumnForMcu = mcusPerColumn * component.v;
|
||
const blocksBufferSize = 64 * blocksPerColumnForMcu * (blocksPerLineForMcu + 1);
|
||
component.blockData = new Int16Array(blocksBufferSize);
|
||
component.blocksPerLine = blocksPerLine;
|
||
component.blocksPerColumn = blocksPerColumn;
|
||
}
|
||
frame.mcusPerLine = mcusPerLine;
|
||
frame.mcusPerColumn = mcusPerColumn;
|
||
}
|
||
function readDataBlock(data, view, offset) {
|
||
const length = view.getUint16(offset);
|
||
offset += 2;
|
||
let endOffset = offset + length - 2;
|
||
const fileMarker = findNextFileMarker(data, view, endOffset, offset);
|
||
if (fileMarker?.invalid) {
|
||
warn("readDataBlock - incorrect length, current marker is: " + fileMarker.invalid);
|
||
endOffset = fileMarker.offset;
|
||
}
|
||
const array = data.subarray(offset, endOffset);
|
||
return {
|
||
appData: array,
|
||
oldOffset: offset,
|
||
newOffset: offset + array.length
|
||
};
|
||
}
|
||
function skipData(data, view, offset) {
|
||
const length = view.getUint16(offset);
|
||
offset += 2;
|
||
const endOffset = offset + length - 2;
|
||
const fileMarker = findNextFileMarker(data, view, endOffset, offset);
|
||
if (fileMarker?.invalid) {
|
||
return fileMarker.offset;
|
||
}
|
||
return endOffset;
|
||
}
|
||
class JpegImage {
|
||
constructor({
|
||
decodeTransform = null,
|
||
colorTransform = -1
|
||
} = {}) {
|
||
this._decodeTransform = decodeTransform;
|
||
this._colorTransform = colorTransform;
|
||
}
|
||
static canUseImageDecoder(data, colorTransform = -1) {
|
||
const view = new DataView(data.buffer, data.byteOffset, data.byteLength);
|
||
let exifOffsets = null;
|
||
let offset = 0;
|
||
let numComponents = null;
|
||
let fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
if (fileMarker !== 0xffd8) {
|
||
throw new JpegError("SOI not found");
|
||
}
|
||
fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
markerLoop: while (fileMarker !== 0xffd9) {
|
||
switch (fileMarker) {
|
||
case 0xffe1:
|
||
const {
|
||
appData,
|
||
oldOffset,
|
||
newOffset
|
||
} = readDataBlock(data, view, offset);
|
||
offset = newOffset;
|
||
if (appData[0] === 0x45 && appData[1] === 0x78 && appData[2] === 0x69 && appData[3] === 0x66 && appData[4] === 0 && appData[5] === 0) {
|
||
if (exifOffsets) {
|
||
throw new JpegError("Duplicate EXIF-blocks found.");
|
||
}
|
||
exifOffsets = {
|
||
exifStart: oldOffset + 6,
|
||
exifEnd: newOffset
|
||
};
|
||
}
|
||
fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
continue;
|
||
case 0xffc0:
|
||
case 0xffc1:
|
||
case 0xffc2:
|
||
numComponents = data[offset + (2 + 1 + 2 + 2)];
|
||
break markerLoop;
|
||
case 0xffff:
|
||
if (data[offset] !== 0xff) {
|
||
offset--;
|
||
}
|
||
break;
|
||
}
|
||
offset = skipData(data, view, offset);
|
||
fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
}
|
||
if (numComponents === 4) {
|
||
return null;
|
||
}
|
||
if (numComponents === 3 && colorTransform === 0) {
|
||
return null;
|
||
}
|
||
return exifOffsets || {};
|
||
}
|
||
parse(data, {
|
||
dnlScanLines = null
|
||
} = {}) {
|
||
const view = new DataView(data.buffer, data.byteOffset, data.byteLength);
|
||
const maxOffset = data.length - 1;
|
||
let offset = 0;
|
||
let jfif = null;
|
||
let adobe = null;
|
||
let frame, resetInterval;
|
||
let numSOSMarkers = 0;
|
||
const quantizationTables = [];
|
||
const huffmanTablesAC = [],
|
||
huffmanTablesDC = [];
|
||
let fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
if (fileMarker !== 0xffd8) {
|
||
throw new JpegError("SOI not found");
|
||
}
|
||
fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
markerLoop: while (fileMarker !== 0xffd9) {
|
||
let i, j, l;
|
||
switch (fileMarker) {
|
||
case 0xffe0:
|
||
case 0xffe1:
|
||
case 0xffe2:
|
||
case 0xffe3:
|
||
case 0xffe4:
|
||
case 0xffe5:
|
||
case 0xffe6:
|
||
case 0xffe7:
|
||
case 0xffe8:
|
||
case 0xffe9:
|
||
case 0xffea:
|
||
case 0xffeb:
|
||
case 0xffec:
|
||
case 0xffed:
|
||
case 0xffee:
|
||
case 0xffef:
|
||
case 0xfffe:
|
||
const {
|
||
appData,
|
||
newOffset
|
||
} = readDataBlock(data, view, offset);
|
||
offset = newOffset;
|
||
if (fileMarker === 0xffe0) {
|
||
if (appData[0] === 0x4a && appData[1] === 0x46 && appData[2] === 0x49 && appData[3] === 0x46 && appData[4] === 0) {
|
||
jfif = {
|
||
version: {
|
||
major: appData[5],
|
||
minor: appData[6]
|
||
},
|
||
densityUnits: appData[7],
|
||
xDensity: appData[8] << 8 | appData[9],
|
||
yDensity: appData[10] << 8 | appData[11],
|
||
thumbWidth: appData[12],
|
||
thumbHeight: appData[13],
|
||
thumbData: appData.subarray(14, 14 + 3 * appData[12] * appData[13])
|
||
};
|
||
}
|
||
}
|
||
if (fileMarker === 0xffee) {
|
||
if (appData[0] === 0x41 && appData[1] === 0x64 && appData[2] === 0x6f && appData[3] === 0x62 && appData[4] === 0x65) {
|
||
adobe = {
|
||
version: appData[5] << 8 | appData[6],
|
||
flags0: appData[7] << 8 | appData[8],
|
||
flags1: appData[9] << 8 | appData[10],
|
||
transformCode: appData[11]
|
||
};
|
||
}
|
||
}
|
||
break;
|
||
case 0xffdb:
|
||
const quantizationTablesLength = view.getUint16(offset);
|
||
offset += 2;
|
||
const quantizationTablesEnd = quantizationTablesLength + offset - 2;
|
||
let z;
|
||
while (offset < quantizationTablesEnd) {
|
||
const quantizationTableSpec = data[offset++];
|
||
const tableData = new Uint16Array(64);
|
||
if (quantizationTableSpec >> 4 === 0) {
|
||
for (j = 0; j < 64; j++) {
|
||
z = dctZigZag[j];
|
||
tableData[z] = data[offset++];
|
||
}
|
||
} else if (quantizationTableSpec >> 4 === 1) {
|
||
for (j = 0; j < 64; j++) {
|
||
z = dctZigZag[j];
|
||
tableData[z] = view.getUint16(offset);
|
||
offset += 2;
|
||
}
|
||
} else {
|
||
throw new JpegError("DQT - invalid table spec");
|
||
}
|
||
quantizationTables[quantizationTableSpec & 15] = tableData;
|
||
}
|
||
break;
|
||
case 0xffc0:
|
||
case 0xffc1:
|
||
case 0xffc2:
|
||
if (frame) {
|
||
throw new JpegError("Only single frame JPEGs supported");
|
||
}
|
||
offset += 2;
|
||
frame = {};
|
||
frame.extended = fileMarker === 0xffc1;
|
||
frame.progressive = fileMarker === 0xffc2;
|
||
frame.precision = data[offset++];
|
||
const sofScanLines = view.getUint16(offset);
|
||
offset += 2;
|
||
frame.scanLines = dnlScanLines || sofScanLines;
|
||
frame.samplesPerLine = view.getUint16(offset);
|
||
offset += 2;
|
||
frame.components = [];
|
||
frame.componentIds = {};
|
||
const componentsCount = data[offset++];
|
||
let maxH = 0,
|
||
maxV = 0;
|
||
for (i = 0; i < componentsCount; i++) {
|
||
const componentId = data[offset];
|
||
const h = data[offset + 1] >> 4;
|
||
const v = data[offset + 1] & 15;
|
||
if (maxH < h) {
|
||
maxH = h;
|
||
}
|
||
if (maxV < v) {
|
||
maxV = v;
|
||
}
|
||
const qId = data[offset + 2];
|
||
l = frame.components.push({
|
||
h,
|
||
v,
|
||
quantizationId: qId,
|
||
quantizationTable: null
|
||
});
|
||
frame.componentIds[componentId] = l - 1;
|
||
offset += 3;
|
||
}
|
||
frame.maxH = maxH;
|
||
frame.maxV = maxV;
|
||
prepareComponents(frame);
|
||
break;
|
||
case 0xffc4:
|
||
const huffmanLength = view.getUint16(offset);
|
||
offset += 2;
|
||
for (i = 2; i < huffmanLength;) {
|
||
const huffmanTableSpec = data[offset++];
|
||
const codeLengths = new Uint8Array(16);
|
||
let codeLengthSum = 0;
|
||
for (j = 0; j < 16; j++, offset++) {
|
||
codeLengthSum += codeLengths[j] = data[offset];
|
||
}
|
||
const huffmanValues = new Uint8Array(codeLengthSum);
|
||
for (j = 0; j < codeLengthSum; j++, offset++) {
|
||
huffmanValues[j] = data[offset];
|
||
}
|
||
i += 17 + codeLengthSum;
|
||
(huffmanTableSpec >> 4 === 0 ? huffmanTablesDC : huffmanTablesAC)[huffmanTableSpec & 15] = buildHuffmanTable(codeLengths, huffmanValues);
|
||
}
|
||
break;
|
||
case 0xffdd:
|
||
offset += 2;
|
||
resetInterval = view.getUint16(offset);
|
||
offset += 2;
|
||
break;
|
||
case 0xffda:
|
||
const parseDNLMarker = ++numSOSMarkers === 1 && !dnlScanLines;
|
||
offset += 2;
|
||
const selectorsCount = data[offset++],
|
||
components = [];
|
||
for (i = 0; i < selectorsCount; i++) {
|
||
const index = data[offset++];
|
||
const componentIndex = frame.componentIds[index];
|
||
const component = frame.components[componentIndex];
|
||
component.index = index;
|
||
const tableSpec = data[offset++];
|
||
component.huffmanTableDC = huffmanTablesDC[tableSpec >> 4];
|
||
component.huffmanTableAC = huffmanTablesAC[tableSpec & 15];
|
||
components.push(component);
|
||
}
|
||
const spectralStart = data[offset++],
|
||
spectralEnd = data[offset++],
|
||
successiveApproximation = data[offset++];
|
||
try {
|
||
const processed = decodeScan(data, view, offset, frame, components, resetInterval, spectralStart, spectralEnd, successiveApproximation >> 4, successiveApproximation & 15, parseDNLMarker);
|
||
offset += processed;
|
||
} catch (ex) {
|
||
if (ex instanceof DNLMarkerError) {
|
||
warn(`${ex.message} -- attempting to re-parse the JPEG image.`);
|
||
return this.parse(data, {
|
||
dnlScanLines: ex.scanLines
|
||
});
|
||
} else if (ex instanceof EOIMarkerError) {
|
||
warn(`${ex.message} -- ignoring the rest of the image data.`);
|
||
break markerLoop;
|
||
}
|
||
throw ex;
|
||
}
|
||
break;
|
||
case 0xffdc:
|
||
offset += 4;
|
||
break;
|
||
case 0xffff:
|
||
if (data[offset] !== 0xff) {
|
||
offset--;
|
||
}
|
||
break;
|
||
default:
|
||
const nextFileMarker = findNextFileMarker(data, view, offset - 2, offset - 3);
|
||
if (nextFileMarker?.invalid) {
|
||
warn("JpegImage.parse - unexpected data, current marker is: " + nextFileMarker.invalid);
|
||
offset = nextFileMarker.offset;
|
||
break;
|
||
}
|
||
if (!nextFileMarker || offset >= maxOffset) {
|
||
warn("JpegImage.parse - reached the end of the image data " + "without finding an EOI marker (0xFFD9).");
|
||
break markerLoop;
|
||
}
|
||
throw new JpegError("JpegImage.parse - unknown marker: " + fileMarker.toString(16));
|
||
}
|
||
if (offset < maxOffset) {
|
||
fileMarker = view.getUint16(offset);
|
||
offset += 2;
|
||
} else {
|
||
fileMarker = 0;
|
||
}
|
||
}
|
||
if (!frame) {
|
||
throw new JpegError("JpegImage.parse - no frame data found.");
|
||
}
|
||
this.width = frame.samplesPerLine;
|
||
this.height = frame.scanLines;
|
||
this.jfif = jfif;
|
||
this.adobe = adobe;
|
||
this.components = [];
|
||
for (const component of frame.components) {
|
||
const quantizationTable = quantizationTables[component.quantizationId];
|
||
if (quantizationTable) {
|
||
component.quantizationTable = quantizationTable;
|
||
}
|
||
this.components.push({
|
||
index: component.index,
|
||
output: buildComponentData(frame, component),
|
||
scaleX: component.h / frame.maxH,
|
||
scaleY: component.v / frame.maxV,
|
||
blocksPerLine: component.blocksPerLine,
|
||
blocksPerColumn: component.blocksPerColumn
|
||
});
|
||
}
|
||
this.numComponents = this.components.length;
|
||
return undefined;
|
||
}
|
||
_getLinearizedBlockData(width, height, isSourcePDF = false) {
|
||
const scaleX = this.width / width,
|
||
scaleY = this.height / height;
|
||
let component, componentScaleX, componentScaleY, blocksPerScanline;
|
||
let x, y, i, j, k;
|
||
let index;
|
||
let offset = 0;
|
||
let output;
|
||
const numComponents = this.components.length;
|
||
const dataLength = width * height * numComponents;
|
||
const data = new Uint8ClampedArray(dataLength);
|
||
const xScaleBlockOffset = new Uint32Array(width);
|
||
const mask3LSB = 0xfffffff8;
|
||
let lastComponentScaleX;
|
||
for (i = 0; i < numComponents; i++) {
|
||
component = this.components[i];
|
||
componentScaleX = component.scaleX * scaleX;
|
||
componentScaleY = component.scaleY * scaleY;
|
||
offset = i;
|
||
output = component.output;
|
||
blocksPerScanline = component.blocksPerLine + 1 << 3;
|
||
if (componentScaleX !== lastComponentScaleX) {
|
||
for (x = 0; x < width; x++) {
|
||
j = 0 | x * componentScaleX;
|
||
xScaleBlockOffset[x] = (j & mask3LSB) << 3 | j & 7;
|
||
}
|
||
lastComponentScaleX = componentScaleX;
|
||
}
|
||
for (y = 0; y < height; y++) {
|
||
j = 0 | y * componentScaleY;
|
||
index = blocksPerScanline * (j & mask3LSB) | (j & 7) << 3;
|
||
for (x = 0; x < width; x++) {
|
||
data[offset] = output[index + xScaleBlockOffset[x]];
|
||
offset += numComponents;
|
||
}
|
||
}
|
||
}
|
||
let transform = this._decodeTransform;
|
||
if (!isSourcePDF && numComponents === 4 && !transform) {
|
||
transform = new Int32Array([-256, 255, -256, 255, -256, 255, -256, 255]);
|
||
}
|
||
if (transform) {
|
||
for (i = 0; i < dataLength;) {
|
||
for (j = 0, k = 0; j < numComponents; j++, i++, k += 2) {
|
||
data[i] = (data[i] * transform[k] >> 8) + transform[k + 1];
|
||
}
|
||
}
|
||
}
|
||
return data;
|
||
}
|
||
get _isColorConversionNeeded() {
|
||
if (this.adobe) {
|
||
return !!this.adobe.transformCode;
|
||
}
|
||
if (this.numComponents === 3) {
|
||
if (this._colorTransform === 0) {
|
||
return false;
|
||
} else if (this.components[0].index === 0x52 && this.components[1].index === 0x47 && this.components[2].index === 0x42) {
|
||
return false;
|
||
}
|
||
return true;
|
||
}
|
||
if (this._colorTransform === 1) {
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
_convertYccToRgb(data) {
|
||
let Y, Cb, Cr;
|
||
for (let i = 0, length = data.length; i < length; i += 3) {
|
||
Y = data[i];
|
||
Cb = data[i + 1];
|
||
Cr = data[i + 2];
|
||
data[i] = Y - 179.456 + 1.402 * Cr;
|
||
data[i + 1] = Y + 135.459 - 0.344 * Cb - 0.714 * Cr;
|
||
data[i + 2] = Y - 226.816 + 1.772 * Cb;
|
||
}
|
||
return data;
|
||
}
|
||
_convertYccToRgba(data, out) {
|
||
for (let i = 0, j = 0, length = data.length; i < length; i += 3, j += 4) {
|
||
const Y = data[i];
|
||
const Cb = data[i + 1];
|
||
const Cr = data[i + 2];
|
||
out[j] = Y - 179.456 + 1.402 * Cr;
|
||
out[j + 1] = Y + 135.459 - 0.344 * Cb - 0.714 * Cr;
|
||
out[j + 2] = Y - 226.816 + 1.772 * Cb;
|
||
out[j + 3] = 255;
|
||
}
|
||
return out;
|
||
}
|
||
_convertYcckToRgb(data) {
|
||
this._convertYcckToCmyk(data);
|
||
return this._convertCmykToRgb(data);
|
||
}
|
||
_convertYcckToRgba(data) {
|
||
this._convertYcckToCmyk(data);
|
||
return this._convertCmykToRgba(data);
|
||
}
|
||
_convertYcckToCmyk(data) {
|
||
let Y, Cb, Cr;
|
||
for (let i = 0, length = data.length; i < length; i += 4) {
|
||
Y = data[i];
|
||
Cb = data[i + 1];
|
||
Cr = data[i + 2];
|
||
data[i] = 434.456 - Y - 1.402 * Cr;
|
||
data[i + 1] = 119.541 - Y + 0.344 * Cb + 0.714 * Cr;
|
||
data[i + 2] = 481.816 - Y - 1.772 * Cb;
|
||
}
|
||
return data;
|
||
}
|
||
_convertCmykToRgb(data) {
|
||
const count = data.length / 4;
|
||
ColorSpaceUtils.cmyk.getRgbBuffer(data, 0, count, data, 0, 8, 0);
|
||
return data.subarray(0, count * 3);
|
||
}
|
||
_convertCmykToRgba(data) {
|
||
ColorSpaceUtils.cmyk.getRgbBuffer(data, 0, data.length / 4, data, 0, 8, 1);
|
||
if (ColorSpaceUtils.cmyk instanceof DeviceCmykCS) {
|
||
for (let i = 3, ii = data.length; i < ii; i += 4) {
|
||
data[i] = 255;
|
||
}
|
||
}
|
||
return data;
|
||
}
|
||
getData({
|
||
width,
|
||
height,
|
||
forceRGBA = false,
|
||
forceRGB = false,
|
||
isSourcePDF = false
|
||
}) {
|
||
if (this.numComponents > 4) {
|
||
throw new JpegError("Unsupported color mode");
|
||
}
|
||
const data = this._getLinearizedBlockData(width, height, isSourcePDF);
|
||
if (this.numComponents === 1 && (forceRGBA || forceRGB)) {
|
||
const len = data.length * (forceRGBA ? 4 : 3);
|
||
const rgbaData = new Uint8ClampedArray(len);
|
||
let offset = 0;
|
||
if (forceRGBA) {
|
||
grayToRGBA(data, new Uint32Array(rgbaData.buffer));
|
||
} else {
|
||
for (const grayColor of data) {
|
||
rgbaData[offset++] = grayColor;
|
||
rgbaData[offset++] = grayColor;
|
||
rgbaData[offset++] = grayColor;
|
||
}
|
||
}
|
||
return rgbaData;
|
||
} else if (this.numComponents === 3 && this._isColorConversionNeeded) {
|
||
if (forceRGBA) {
|
||
const rgbaData = new Uint8ClampedArray(data.length / 3 * 4);
|
||
return this._convertYccToRgba(data, rgbaData);
|
||
}
|
||
return this._convertYccToRgb(data);
|
||
} else if (this.numComponents === 4) {
|
||
if (this._isColorConversionNeeded) {
|
||
if (forceRGBA) {
|
||
return this._convertYcckToRgba(data);
|
||
}
|
||
if (forceRGB) {
|
||
return this._convertYcckToRgb(data);
|
||
}
|
||
return this._convertYcckToCmyk(data);
|
||
} else if (forceRGBA) {
|
||
return this._convertCmykToRgba(data);
|
||
} else if (forceRGB) {
|
||
return this._convertCmykToRgb(data);
|
||
}
|
||
}
|
||
return data;
|
||
}
|
||
}
|
||
|
||
;// ./external/openjpeg/openjpeg.js
|
||
async function OpenJPEG(moduleArg = {}) {
|
||
var moduleRtn;
|
||
var Module = moduleArg;
|
||
var ENVIRONMENT_IS_WEB = true;
|
||
var ENVIRONMENT_IS_WORKER = false;
|
||
var arguments_ = [];
|
||
var thisProgram = "./this.program";
|
||
var quit_ = (status, toThrow) => {
|
||
throw toThrow;
|
||
};
|
||
var _scriptName = import.meta.url;
|
||
var scriptDirectory = "";
|
||
var readAsync, readBinary;
|
||
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
|
||
try {
|
||
scriptDirectory = new URL(".", _scriptName).href;
|
||
} catch {}
|
||
readAsync = async url => {
|
||
var response = await fetch(url, {
|
||
credentials: "same-origin"
|
||
});
|
||
if (response.ok) {
|
||
return response.arrayBuffer();
|
||
}
|
||
throw new Error(response.status + " : " + response.url);
|
||
};
|
||
} else {}
|
||
var out = console.log.bind(console);
|
||
var err = console.error.bind(console);
|
||
var wasmBinary;
|
||
var ABORT = false;
|
||
var EXITSTATUS;
|
||
class EmscriptenEH {}
|
||
class EmscriptenSjLj extends EmscriptenEH {}
|
||
var readyPromiseResolve, readyPromiseReject;
|
||
var runtimeInitialized = false;
|
||
function updateMemoryViews() {
|
||
var b = wasmMemory.buffer;
|
||
HEAP8 = new Int8Array(b);
|
||
HEAP16 = new Int16Array(b);
|
||
HEAPU8 = new Uint8Array(b);
|
||
HEAPU16 = new Uint16Array(b);
|
||
HEAP32 = new Int32Array(b);
|
||
HEAPU32 = new Uint32Array(b);
|
||
HEAPF32 = new Float32Array(b);
|
||
HEAPF64 = new Float64Array(b);
|
||
HEAP64 = new BigInt64Array(b);
|
||
HEAPU64 = new BigUint64Array(b);
|
||
}
|
||
function preRun() {
|
||
if (Module["preRun"]) {
|
||
if (typeof Module["preRun"] == "function") Module["preRun"] = [Module["preRun"]];
|
||
while (Module["preRun"].length) {
|
||
addOnPreRun(Module["preRun"].shift());
|
||
}
|
||
}
|
||
callRuntimeCallbacks(onPreRuns);
|
||
}
|
||
function initRuntime() {
|
||
runtimeInitialized = true;
|
||
wasmExports["s"]();
|
||
}
|
||
function postRun() {
|
||
if (Module["postRun"]) {
|
||
if (typeof Module["postRun"] == "function") Module["postRun"] = [Module["postRun"]];
|
||
while (Module["postRun"].length) {
|
||
addOnPostRun(Module["postRun"].shift());
|
||
}
|
||
}
|
||
callRuntimeCallbacks(onPostRuns);
|
||
}
|
||
function abort(what) {
|
||
Module["onAbort"]?.(what);
|
||
what = `Aborted(${what})`;
|
||
err(what);
|
||
ABORT = true;
|
||
what += ". Build with -sASSERTIONS for more info.";
|
||
var e = new WebAssembly.RuntimeError(what);
|
||
readyPromiseReject?.(e);
|
||
throw e;
|
||
}
|
||
var wasmBinaryFile;
|
||
function getWasmImports() {
|
||
var imports = {
|
||
a: wasmImports
|
||
};
|
||
return imports;
|
||
}
|
||
async function createWasm() {
|
||
function receiveInstance(instance, module) {
|
||
wasmExports = instance.exports;
|
||
assignWasmExports(wasmExports);
|
||
updateMemoryViews();
|
||
return wasmExports;
|
||
}
|
||
var info = getWasmImports();
|
||
return new Promise((resolve, reject) => {
|
||
Module["instantiateWasm"](info, (inst, mod) => {
|
||
resolve(receiveInstance(inst, mod));
|
||
});
|
||
});
|
||
}
|
||
class ExitStatus {
|
||
name = "ExitStatus";
|
||
constructor(status) {
|
||
this.message = `Program terminated with exit(${status})`;
|
||
this.status = status;
|
||
}
|
||
}
|
||
var HEAP16;
|
||
var HEAP32;
|
||
var HEAP64;
|
||
var HEAP8;
|
||
var HEAPF32;
|
||
var HEAPF64;
|
||
var HEAPU16;
|
||
var HEAPU32;
|
||
var HEAPU64;
|
||
var HEAPU8;
|
||
var callRuntimeCallbacks = callbacks => {
|
||
while (callbacks.length > 0) {
|
||
callbacks.shift()(Module);
|
||
}
|
||
};
|
||
var onPostRuns = [];
|
||
var addOnPostRun = cb => onPostRuns.push(cb);
|
||
var onPreRuns = [];
|
||
var addOnPreRun = cb => onPreRuns.push(cb);
|
||
var noExitRuntime = true;
|
||
var __abort_js = () => abort("");
|
||
var runtimeKeepaliveCounter = 0;
|
||
var __emscripten_runtime_keepalive_clear = () => {
|
||
noExitRuntime = false;
|
||
runtimeKeepaliveCounter = 0;
|
||
};
|
||
var timers = {};
|
||
var handleException = e => {
|
||
if (e instanceof ExitStatus || e == "unwind") {
|
||
return EXITSTATUS;
|
||
}
|
||
quit_(1, e);
|
||
};
|
||
var keepRuntimeAlive = () => noExitRuntime || runtimeKeepaliveCounter > 0;
|
||
var _proc_exit = code => {
|
||
EXITSTATUS = code;
|
||
if (!keepRuntimeAlive()) {
|
||
Module["onExit"]?.(code);
|
||
ABORT = true;
|
||
}
|
||
quit_(code, new ExitStatus(code));
|
||
};
|
||
var exitJS = (status, implicit) => {
|
||
EXITSTATUS = status;
|
||
_proc_exit(status);
|
||
};
|
||
var _exit = exitJS;
|
||
var maybeExit = () => {
|
||
if (!keepRuntimeAlive()) {
|
||
try {
|
||
_exit(EXITSTATUS);
|
||
} catch (e) {
|
||
handleException(e);
|
||
}
|
||
}
|
||
};
|
||
var callUserCallback = func => {
|
||
if (ABORT) {
|
||
return;
|
||
}
|
||
try {
|
||
return func();
|
||
} catch (e) {
|
||
handleException(e);
|
||
} finally {
|
||
maybeExit();
|
||
}
|
||
};
|
||
var _emscripten_get_now = () => performance.now();
|
||
var __setitimer_js = (which, timeout_ms) => {
|
||
if (timers[which]) {
|
||
clearTimeout(timers[which].id);
|
||
delete timers[which];
|
||
}
|
||
if (!timeout_ms) return 0;
|
||
var id = setTimeout(() => {
|
||
delete timers[which];
|
||
callUserCallback(() => __emscripten_timeout(which, _emscripten_get_now()));
|
||
}, timeout_ms);
|
||
timers[which] = {
|
||
id,
|
||
timeout_ms
|
||
};
|
||
return 0;
|
||
};
|
||
function _copy_pixels_1(compG_ptr, nb_pixels) {
|
||
compG_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
imageData.set(compG);
|
||
}
|
||
function _copy_pixels_3(compR_ptr, compG_ptr, compB_ptr, nb_pixels) {
|
||
compR_ptr >>= 2;
|
||
compG_ptr >>= 2;
|
||
compB_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels * 3);
|
||
const compR = HEAP32.subarray(compR_ptr, compR_ptr + nb_pixels);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
const compB = HEAP32.subarray(compB_ptr, compB_ptr + nb_pixels);
|
||
for (let i = 0; i < nb_pixels; i++) {
|
||
imageData[3 * i] = compR[i];
|
||
imageData[3 * i + 1] = compG[i];
|
||
imageData[3 * i + 2] = compB[i];
|
||
}
|
||
}
|
||
function _copy_pixels_4(compR_ptr, compG_ptr, compB_ptr, compA_ptr, nb_pixels) {
|
||
compR_ptr >>= 2;
|
||
compG_ptr >>= 2;
|
||
compB_ptr >>= 2;
|
||
compA_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels * 4);
|
||
const compR = HEAP32.subarray(compR_ptr, compR_ptr + nb_pixels);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
const compB = HEAP32.subarray(compB_ptr, compB_ptr + nb_pixels);
|
||
const compA = HEAP32.subarray(compA_ptr, compA_ptr + nb_pixels);
|
||
for (let i = 0; i < nb_pixels; i++) {
|
||
imageData[4 * i] = compR[i];
|
||
imageData[4 * i + 1] = compG[i];
|
||
imageData[4 * i + 2] = compB[i];
|
||
imageData[4 * i + 3] = compA[i];
|
||
}
|
||
}
|
||
var getHeapMax = () => 2147483648;
|
||
var alignMemory = (size, alignment) => Math.ceil(size / alignment) * alignment;
|
||
var growMemory = size => {
|
||
var oldHeapSize = wasmMemory.buffer.byteLength;
|
||
var pages = (size - oldHeapSize + 65535) / 65536 | 0;
|
||
try {
|
||
wasmMemory.grow(pages);
|
||
updateMemoryViews();
|
||
return 1;
|
||
} catch (e) {}
|
||
};
|
||
var _emscripten_resize_heap = requestedSize => {
|
||
var oldSize = HEAPU8.length;
|
||
requestedSize >>>= 0;
|
||
var maxHeapSize = getHeapMax();
|
||
if (requestedSize > maxHeapSize) {
|
||
return false;
|
||
}
|
||
for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
|
||
var overGrownHeapSize = oldSize * (1 + .2 / cutDown);
|
||
overGrownHeapSize = Math.min(overGrownHeapSize, requestedSize + 100663296);
|
||
var newSize = Math.min(maxHeapSize, alignMemory(Math.max(requestedSize, overGrownHeapSize), 65536));
|
||
var replacement = growMemory(newSize);
|
||
if (replacement) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
};
|
||
var ENV = {};
|
||
var getExecutableName = () => thisProgram || "./this.program";
|
||
var getEnvStrings = () => {
|
||
if (!getEnvStrings.strings) {
|
||
var lang = (globalThis.navigator?.language ?? "C").replace("-", "_") + ".UTF-8";
|
||
var env = {
|
||
USER: "web_user",
|
||
LOGNAME: "web_user",
|
||
PATH: "/",
|
||
PWD: "/",
|
||
HOME: "/home/web_user",
|
||
LANG: lang,
|
||
_: getExecutableName()
|
||
};
|
||
for (var x in ENV) {
|
||
if (ENV[x] === undefined) delete env[x];else env[x] = ENV[x];
|
||
}
|
||
var strings = [];
|
||
for (var x in env) {
|
||
strings.push(`${x}=${env[x]}`);
|
||
}
|
||
getEnvStrings.strings = strings;
|
||
}
|
||
return getEnvStrings.strings;
|
||
};
|
||
var stringToUTF8Array = (str, heap, outIdx, maxBytesToWrite) => {
|
||
if (!(maxBytesToWrite > 0)) return 0;
|
||
var startIdx = outIdx;
|
||
var endIdx = outIdx + maxBytesToWrite - 1;
|
||
for (var i = 0; i < str.length; ++i) {
|
||
var u = str.codePointAt(i);
|
||
if (u <= 127) {
|
||
if (outIdx >= endIdx) break;
|
||
heap[outIdx++] = u;
|
||
} else if (u <= 2047) {
|
||
if (outIdx + 1 >= endIdx) break;
|
||
heap[outIdx++] = 192 | u >> 6;
|
||
heap[outIdx++] = 128 | u & 63;
|
||
} else if (u <= 65535) {
|
||
if (outIdx + 2 >= endIdx) break;
|
||
heap[outIdx++] = 224 | u >> 12;
|
||
heap[outIdx++] = 128 | u >> 6 & 63;
|
||
heap[outIdx++] = 128 | u & 63;
|
||
} else {
|
||
if (outIdx + 3 >= endIdx) break;
|
||
heap[outIdx++] = 240 | u >> 18;
|
||
heap[outIdx++] = 128 | u >> 12 & 63;
|
||
heap[outIdx++] = 128 | u >> 6 & 63;
|
||
heap[outIdx++] = 128 | u & 63;
|
||
i++;
|
||
}
|
||
}
|
||
heap[outIdx] = 0;
|
||
return outIdx - startIdx;
|
||
};
|
||
var stringToUTF8 = (str, outPtr, maxBytesToWrite) => stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
|
||
var _environ_get = (__environ, environ_buf) => {
|
||
var bufSize = 0;
|
||
var envp = 0;
|
||
for (var string of getEnvStrings()) {
|
||
var ptr = environ_buf + bufSize;
|
||
HEAPU32[__environ + envp >> 2] = ptr;
|
||
bufSize += stringToUTF8(string, ptr, Infinity) + 1;
|
||
envp += 4;
|
||
}
|
||
return 0;
|
||
};
|
||
var lengthBytesUTF8 = str => {
|
||
var len = 0;
|
||
for (var i = 0; i < str.length; ++i) {
|
||
var c = str.charCodeAt(i);
|
||
if (c <= 127) {
|
||
len++;
|
||
} else if (c <= 2047) {
|
||
len += 2;
|
||
} else if (c >= 55296 && c <= 57343) {
|
||
len += 4;
|
||
++i;
|
||
} else {
|
||
len += 3;
|
||
}
|
||
}
|
||
return len;
|
||
};
|
||
var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
|
||
var strings = getEnvStrings();
|
||
HEAPU32[penviron_count >> 2] = strings.length;
|
||
var bufSize = 0;
|
||
for (var string of strings) {
|
||
bufSize += lengthBytesUTF8(string) + 1;
|
||
}
|
||
HEAPU32[penviron_buf_size >> 2] = bufSize;
|
||
return 0;
|
||
};
|
||
var INT53_MAX = 9007199254740992;
|
||
var INT53_MIN = -9007199254740992;
|
||
var bigintToI53Checked = num => num < INT53_MIN || num > INT53_MAX ? NaN : Number(num);
|
||
function _fd_seek(fd, offset, whence, newOffset) {
|
||
offset = bigintToI53Checked(offset);
|
||
return 70;
|
||
}
|
||
var printCharBuffers = [null, [], []];
|
||
var UTF8Decoder = globalThis.TextDecoder && new TextDecoder();
|
||
var findStringEnd = (heapOrArray, idx, maxBytesToRead, ignoreNul) => {
|
||
var maxIdx = idx + maxBytesToRead;
|
||
if (ignoreNul) return maxIdx;
|
||
while (heapOrArray[idx] && !(idx >= maxIdx)) ++idx;
|
||
return idx;
|
||
};
|
||
var UTF8ArrayToString = (heapOrArray, idx = 0, maxBytesToRead, ignoreNul) => {
|
||
var endPtr = findStringEnd(heapOrArray, idx, maxBytesToRead, ignoreNul);
|
||
if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
|
||
return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
|
||
}
|
||
var str = "";
|
||
while (idx < endPtr) {
|
||
var u0 = heapOrArray[idx++];
|
||
if (!(u0 & 128)) {
|
||
str += String.fromCharCode(u0);
|
||
continue;
|
||
}
|
||
var u1 = heapOrArray[idx++] & 63;
|
||
if ((u0 & 224) == 192) {
|
||
str += String.fromCharCode((u0 & 31) << 6 | u1);
|
||
continue;
|
||
}
|
||
var u2 = heapOrArray[idx++] & 63;
|
||
if ((u0 & 240) == 224) {
|
||
u0 = (u0 & 15) << 12 | u1 << 6 | u2;
|
||
} else {
|
||
u0 = (u0 & 7) << 18 | u1 << 12 | u2 << 6 | heapOrArray[idx++] & 63;
|
||
}
|
||
if (u0 < 65536) {
|
||
str += String.fromCharCode(u0);
|
||
} else {
|
||
var ch = u0 - 65536;
|
||
str += String.fromCharCode(55296 | ch >> 10, 56320 | ch & 1023);
|
||
}
|
||
}
|
||
return str;
|
||
};
|
||
var printChar = (stream, curr) => {
|
||
var buffer = printCharBuffers[stream];
|
||
if (curr === 0 || curr === 10) {
|
||
(stream === 1 ? out : err)(UTF8ArrayToString(buffer));
|
||
buffer.length = 0;
|
||
} else {
|
||
buffer.push(curr);
|
||
}
|
||
};
|
||
var UTF8ToString = (ptr, maxBytesToRead, ignoreNul) => ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead, ignoreNul) : "";
|
||
var _fd_write = (fd, iov, iovcnt, pnum) => {
|
||
var num = 0;
|
||
for (var i = 0; i < iovcnt; i++) {
|
||
var ptr = HEAPU32[iov >> 2];
|
||
var len = HEAPU32[iov + 4 >> 2];
|
||
iov += 8;
|
||
for (var j = 0; j < len; j++) {
|
||
printChar(fd, HEAPU8[ptr + j]);
|
||
}
|
||
num += len;
|
||
}
|
||
HEAPU32[pnum >> 2] = num;
|
||
return 0;
|
||
};
|
||
function _gray_to_rgba(compG_ptr, nb_pixels) {
|
||
compG_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels * 4);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
for (let i = 0; i < nb_pixels; i++) {
|
||
imageData[4 * i] = imageData[4 * i + 1] = imageData[4 * i + 2] = compG[i];
|
||
imageData[4 * i + 3] = 255;
|
||
}
|
||
}
|
||
function _graya_to_rgba(compG_ptr, compA_ptr, nb_pixels) {
|
||
compG_ptr >>= 2;
|
||
compA_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels * 4);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
const compA = HEAP32.subarray(compA_ptr, compA_ptr + nb_pixels);
|
||
for (let i = 0; i < nb_pixels; i++) {
|
||
imageData[4 * i] = imageData[4 * i + 1] = imageData[4 * i + 2] = compG[i];
|
||
imageData[4 * i + 3] = compA[i];
|
||
}
|
||
}
|
||
function _jsPrintWarning(message_ptr) {
|
||
const message = UTF8ToString(message_ptr);
|
||
(Module.warn || console.warn)(`OpenJPEG: ${message}`);
|
||
}
|
||
function _rgb_to_rgba(compR_ptr, compG_ptr, compB_ptr, nb_pixels) {
|
||
compR_ptr >>= 2;
|
||
compG_ptr >>= 2;
|
||
compB_ptr >>= 2;
|
||
const imageData = Module.imageData = new Uint8ClampedArray(nb_pixels * 4);
|
||
const compR = HEAP32.subarray(compR_ptr, compR_ptr + nb_pixels);
|
||
const compG = HEAP32.subarray(compG_ptr, compG_ptr + nb_pixels);
|
||
const compB = HEAP32.subarray(compB_ptr, compB_ptr + nb_pixels);
|
||
for (let i = 0; i < nb_pixels; i++) {
|
||
imageData[4 * i] = compR[i];
|
||
imageData[4 * i + 1] = compG[i];
|
||
imageData[4 * i + 2] = compB[i];
|
||
imageData[4 * i + 3] = 255;
|
||
}
|
||
}
|
||
function _storeErrorMessage(message_ptr) {
|
||
const message = UTF8ToString(message_ptr);
|
||
if (!Module.errorMessages) {
|
||
Module.errorMessages = message;
|
||
} else {
|
||
Module.errorMessages += "\n" + message;
|
||
}
|
||
}
|
||
var writeArrayToMemory = (array, buffer) => {
|
||
HEAP8.set(array, buffer);
|
||
};
|
||
if (Module["noExitRuntime"]) noExitRuntime = Module["noExitRuntime"];
|
||
if (Module["print"]) out = Module["print"];
|
||
if (Module["printErr"]) err = Module["printErr"];
|
||
if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
|
||
if (Module["arguments"]) arguments_ = Module["arguments"];
|
||
if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
|
||
if (Module["preInit"]) {
|
||
if (typeof Module["preInit"] == "function") Module["preInit"] = [Module["preInit"]];
|
||
while (Module["preInit"].length > 0) {
|
||
Module["preInit"].shift()();
|
||
}
|
||
}
|
||
Module["writeArrayToMemory"] = writeArrayToMemory;
|
||
var _malloc, _free, _jp2_decode, __emscripten_timeout, memory, __indirect_function_table, wasmMemory;
|
||
function assignWasmExports(wasmExports) {
|
||
_malloc = Module["_malloc"] = wasmExports["t"];
|
||
_free = Module["_free"] = wasmExports["u"];
|
||
_jp2_decode = Module["_jp2_decode"] = wasmExports["v"];
|
||
__emscripten_timeout = wasmExports["w"];
|
||
memory = wasmMemory = wasmExports["r"];
|
||
__indirect_function_table = wasmExports["__indirect_function_table"];
|
||
}
|
||
var wasmImports = {
|
||
m: __abort_js,
|
||
l: __emscripten_runtime_keepalive_clear,
|
||
i: __setitimer_js,
|
||
f: _copy_pixels_1,
|
||
e: _copy_pixels_3,
|
||
d: _copy_pixels_4,
|
||
j: _emscripten_resize_heap,
|
||
o: _environ_get,
|
||
p: _environ_sizes_get,
|
||
n: _fd_seek,
|
||
b: _fd_write,
|
||
q: _gray_to_rgba,
|
||
h: _graya_to_rgba,
|
||
c: _jsPrintWarning,
|
||
k: _proc_exit,
|
||
g: _rgb_to_rgba,
|
||
a: _storeErrorMessage
|
||
};
|
||
function run() {
|
||
preRun();
|
||
function doRun() {
|
||
Module["calledRun"] = true;
|
||
if (ABORT) return;
|
||
initRuntime();
|
||
readyPromiseResolve?.(Module);
|
||
Module["onRuntimeInitialized"]?.();
|
||
postRun();
|
||
}
|
||
if (Module["setStatus"]) {
|
||
Module["setStatus"]("Running...");
|
||
setTimeout(() => {
|
||
setTimeout(() => Module["setStatus"](""), 1);
|
||
doRun();
|
||
}, 1);
|
||
} else {
|
||
doRun();
|
||
}
|
||
}
|
||
var wasmExports;
|
||
wasmExports = await createWasm();
|
||
run();
|
||
if (runtimeInitialized) {
|
||
moduleRtn = Module;
|
||
} else {
|
||
moduleRtn = new Promise((resolve, reject) => {
|
||
readyPromiseResolve = resolve;
|
||
readyPromiseReject = reject;
|
||
});
|
||
}
|
||
return moduleRtn;
|
||
}
|
||
/* harmony default export */ const openjpeg = (OpenJPEG);
|
||
;// ./src/core/stream.js
|
||
|
||
|
||
class Stream extends BaseStream {
|
||
constructor(arrayBuffer, start, length, dict) {
|
||
super();
|
||
this.bytes = arrayBuffer instanceof Uint8Array ? arrayBuffer : new Uint8Array(arrayBuffer);
|
||
this.start = start || 0;
|
||
this.pos = this.start;
|
||
this.end = start + length || this.bytes.length;
|
||
this.dict = dict;
|
||
}
|
||
get length() {
|
||
return this.end - this.start;
|
||
}
|
||
get isEmpty() {
|
||
return this.length === 0;
|
||
}
|
||
getByte() {
|
||
if (this.pos >= this.end) {
|
||
return -1;
|
||
}
|
||
return this.bytes[this.pos++];
|
||
}
|
||
getBytes(length) {
|
||
const bytes = this.bytes;
|
||
const pos = this.pos;
|
||
const strEnd = this.end;
|
||
if (!length) {
|
||
this.pos = strEnd;
|
||
return bytes.subarray(pos, strEnd);
|
||
}
|
||
let end = pos + length;
|
||
if (end > strEnd) {
|
||
end = strEnd;
|
||
}
|
||
this.pos = end;
|
||
return bytes.subarray(pos, end);
|
||
}
|
||
getByteRange(begin, end) {
|
||
if (begin < 0) {
|
||
begin = 0;
|
||
}
|
||
if (end > this.end) {
|
||
end = this.end;
|
||
}
|
||
return this.bytes.subarray(begin, end);
|
||
}
|
||
reset() {
|
||
this.pos = this.start;
|
||
}
|
||
moveStart() {
|
||
this.start = this.pos;
|
||
}
|
||
makeSubStream(start, length, dict = null) {
|
||
return new Stream(this.bytes.buffer, start, length, dict);
|
||
}
|
||
clone() {
|
||
return new Stream(this.bytes.buffer, this.start, this.end - this.start, this.dict.clone());
|
||
}
|
||
}
|
||
class StringStream extends Stream {
|
||
constructor(str) {
|
||
super(stringToBytes(str));
|
||
}
|
||
}
|
||
class NullStream extends Stream {
|
||
constructor() {
|
||
super(new Uint8Array(0));
|
||
}
|
||
}
|
||
|
||
;// ./src/core/jpx.js
|
||
|
||
|
||
|
||
|
||
class JpxError extends BaseException {
|
||
constructor(msg) {
|
||
super(msg, "JpxError");
|
||
}
|
||
}
|
||
class JpxImage {
|
||
static #buffer = null;
|
||
static #handler = null;
|
||
static #modulePromise = null;
|
||
static #useWasm = true;
|
||
static #useWorkerFetch = true;
|
||
static #wasmUrl = null;
|
||
static setOptions({
|
||
handler,
|
||
useWasm,
|
||
useWorkerFetch,
|
||
wasmUrl
|
||
}) {
|
||
this.#useWasm = useWasm;
|
||
this.#useWorkerFetch = useWorkerFetch;
|
||
this.#wasmUrl = wasmUrl;
|
||
if (!useWorkerFetch) {
|
||
this.#handler = handler;
|
||
}
|
||
}
|
||
static async #getJsModule(fallbackCallback) {
|
||
const path = `${this.#wasmUrl}openjpeg_nowasm_fallback.js`;
|
||
let instance = null;
|
||
try {
|
||
const mod = await import(
|
||
/*webpackIgnore: true*/
|
||
/*@vite-ignore*/
|
||
path);
|
||
instance = mod.default();
|
||
} catch (e) {
|
||
warn(`JpxImage#getJsModule: ${e}`);
|
||
}
|
||
fallbackCallback(instance);
|
||
}
|
||
static async #instantiateWasm(fallbackCallback, imports, successCallback) {
|
||
const filename = "openjpeg.wasm";
|
||
try {
|
||
if (!this.#buffer) {
|
||
if (this.#useWorkerFetch) {
|
||
this.#buffer = await fetchBinaryData(`${this.#wasmUrl}${filename}`);
|
||
} else {
|
||
this.#buffer = await this.#handler.sendWithPromise("FetchBinaryData", {
|
||
kind: "wasmUrl",
|
||
filename
|
||
});
|
||
}
|
||
}
|
||
const results = await WebAssembly.instantiate(this.#buffer, imports);
|
||
return successCallback(results.instance);
|
||
} catch (reason) {
|
||
warn(`JpxImage#instantiateWasm: ${reason}`);
|
||
this.#getJsModule(fallbackCallback);
|
||
return null;
|
||
} finally {
|
||
this.#handler = null;
|
||
}
|
||
}
|
||
static async decode(bytes, {
|
||
numComponents = 4,
|
||
isIndexedColormap = false,
|
||
smaskInData = false,
|
||
reducePower = 0
|
||
} = {}) {
|
||
if (!this.#modulePromise) {
|
||
const {
|
||
promise,
|
||
resolve
|
||
} = Promise.withResolvers();
|
||
const promises = [promise];
|
||
if (!this.#useWasm) {
|
||
this.#getJsModule(resolve);
|
||
} else {
|
||
promises.push(openjpeg({
|
||
warn: warn,
|
||
instantiateWasm: this.#instantiateWasm.bind(this, resolve)
|
||
}));
|
||
}
|
||
this.#modulePromise = Promise.race(promises);
|
||
}
|
||
const module = await this.#modulePromise;
|
||
if (!module) {
|
||
throw new JpxError("OpenJPEG failed to initialize");
|
||
}
|
||
let ptr;
|
||
try {
|
||
const size = bytes.length;
|
||
ptr = module._malloc(size);
|
||
module.writeArrayToMemory(bytes, ptr);
|
||
const ret = module._jp2_decode(ptr, size, numComponents > 0 ? numComponents : 0, !!isIndexedColormap, !!smaskInData, reducePower);
|
||
if (ret) {
|
||
const {
|
||
errorMessages
|
||
} = module;
|
||
if (errorMessages) {
|
||
delete module.errorMessages;
|
||
throw new JpxError(errorMessages);
|
||
}
|
||
throw new JpxError("Unknown error");
|
||
}
|
||
const {
|
||
imageData
|
||
} = module;
|
||
module.imageData = null;
|
||
return imageData;
|
||
} finally {
|
||
if (ptr) {
|
||
module._free(ptr);
|
||
}
|
||
}
|
||
}
|
||
static cleanup() {
|
||
this.#modulePromise = null;
|
||
}
|
||
static parseImageProperties(stream) {
|
||
if (stream instanceof ArrayBuffer || ArrayBuffer.isView(stream)) {
|
||
stream = new Stream(stream);
|
||
} else {
|
||
throw new JpxError("Invalid data format, must be a TypedArray.");
|
||
}
|
||
let newByte = stream.getByte();
|
||
while (newByte >= 0) {
|
||
const oldByte = newByte;
|
||
newByte = stream.getByte();
|
||
const code = oldByte << 8 | newByte;
|
||
if (code === 0xff51) {
|
||
stream.skip(4);
|
||
const Xsiz = stream.getInt32() >>> 0;
|
||
const Ysiz = stream.getInt32() >>> 0;
|
||
const XOsiz = stream.getInt32() >>> 0;
|
||
const YOsiz = stream.getInt32() >>> 0;
|
||
stream.skip(16);
|
||
const Csiz = stream.getUint16();
|
||
return {
|
||
width: Xsiz - XOsiz,
|
||
height: Ysiz - YOsiz,
|
||
bitsPerComponent: 8,
|
||
componentsCount: Csiz
|
||
};
|
||
}
|
||
}
|
||
throw new JpxError("No size marker found in JPX stream");
|
||
}
|
||
}
|
||
|
||
;// ./src/pdf.image_decoders.js
|
||
|
||
|
||
|
||
|
||
globalThis.pdfjsImageDecoders = {
|
||
getVerbosityLevel: getVerbosityLevel,
|
||
Jbig2Error: Jbig2Error,
|
||
Jbig2Image: JBig2CCITTFaxImage,
|
||
JpegError: JpegError,
|
||
JpegImage: JpegImage,
|
||
JpxError: JpxError,
|
||
JpxImage: JpxImage,
|
||
setVerbosityLevel: setVerbosityLevel,
|
||
VerbosityLevel: VerbosityLevel
|
||
};
|
||
|
||
export { Jbig2Error, JBig2CCITTFaxImage as Jbig2Image, JpegError, JpegImage, JpxError, JpxImage, VerbosityLevel, getVerbosityLevel, setVerbosityLevel };
|
||
|
||
//# sourceMappingURL=pdf.image_decoders.mjs.map
|