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Fix the remaining no-var failures, which couldn't be handled automatically, in the src/core/jbig2.js file

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This commit is contained in:
Jonas Jenwald 2021-05-05 12:21:43 +02:00
parent 7ca3a34e1f
commit d59c9ab3ab
1 changed files with 22 additions and 26 deletions
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48
src/core/jbig2.js
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@ -281,14 +281,8 @@ const Jbig2Image = (function Jbig2ImageClosure() {
function decodeBitmapTemplate0(width, height, decodingContext) {
const decoder = decodingContext.decoder;
const contexts = decodingContext.contextCache.getContexts("GB");
let contextLabel,
i,
j,
pixel,
row,
row1,
row2,
bitmap = [];
const bitmap = [];
let contextLabel, i, j, pixel, row, row1, row2;
// ...ooooo....
// ..ooooooo... Context template for current pixel (X)
@ -547,7 +541,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
const row = new Uint8Array(width);
bitmap.push(row);
for (let j = 0; j < width; j++) {
var i0, j0;
let i0, j0;
let contextLabel = 0;
for (k = 0; k < codingTemplateLength; k++) {
i0 = i + codingTemplateY[k];
@ -629,7 +623,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
}
currentWidth += deltaWidth;
totalWidth += currentWidth;
var bitmap;
let bitmap;
if (refinement) {
// 6.5.8.2 Refinement/aggregate-coded symbol bitmap
const numberOfInstances = decodeInteger(
@ -756,9 +750,11 @@ const Jbig2Image = (function Jbig2ImageClosure() {
}
// 6.5.10 Exported symbols
const exportedSymbols = [];
let flags = [],
currentFlag = false;
const exportedSymbols = [],
flags = [];
let currentFlag = false,
i,
ii;
const totalSymbolsLength = symbols.length + numberOfNewSymbols;
while (flags.length < totalSymbolsLength) {
let runLength = huffman
@ -769,7 +765,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
}
currentFlag = !currentFlag;
}
for (var i = 0, ii = symbols.length; i < ii; i++) {
for (i = 0, ii = symbols.length; i < ii; i++) {
if (flags[i]) {
exportedSymbols.push(symbols[i]);
}
@ -879,7 +875,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
}
const offsetT = t - (referenceCorner & 1 ? 0 : symbolHeight - 1);
const offsetS = currentS - (referenceCorner & 2 ? symbolWidth - 1 : 0);
var s2, t2, symbolRow;
let s2, t2, symbolRow;
if (transposed) {
// Place Symbol Bitmap from T1,S1
for (s2 = 0; s2 < symbolHeight; s2++) {
@ -1289,20 +1285,20 @@ const Jbig2Image = (function Jbig2ImageClosure() {
combinationOperator: data[start + 16] & 7,
};
}
var RegionSegmentInformationFieldLength = 17;
const RegionSegmentInformationFieldLength = 17;
function processSegment(segment, visitor) {
const header = segment.header;
let data = segment.data,
position = segment.start,
const data = segment.data,
end = segment.end;
let position = segment.start;
let args, at, i, atLength;
switch (header.type) {
case 0: // SymbolDictionary
// 7.4.2 Symbol dictionary segment syntax
var dictionary = {};
var dictionaryFlags = readUint16(data, position); // 7.4.2.1.1
const dictionary = {};
const dictionaryFlags = readUint16(data, position); // 7.4.2.1.1
dictionary.huffman = !!(dictionaryFlags & 1);
dictionary.refinement = !!(dictionaryFlags & 2);
dictionary.huffmanDHSelector = (dictionaryFlags >> 2) & 3;
@ -1352,10 +1348,10 @@ const Jbig2Image = (function Jbig2ImageClosure() {
break;
case 6: // ImmediateTextRegion
case 7: // ImmediateLosslessTextRegion
var textRegion = {};
const textRegion = {};
textRegion.info = readRegionSegmentInformation(data, position);
position += RegionSegmentInformationFieldLength;
var textRegionSegmentFlags = readUint16(data, position);
const textRegionSegmentFlags = readUint16(data, position);
position += 2;
textRegion.huffman = !!(textRegionSegmentFlags & 1);
textRegion.refinement = !!(textRegionSegmentFlags & 2);
@ -1436,10 +1432,10 @@ const Jbig2Image = (function Jbig2ImageClosure() {
break;
case 38: // ImmediateGenericRegion
case 39: // ImmediateLosslessGenericRegion
var genericRegion = {};
const genericRegion = {};
genericRegion.info = readRegionSegmentInformation(data, position);
position += RegionSegmentInformationFieldLength;
var genericRegionSegmentFlags = data[position++];
const genericRegionSegmentFlags = data[position++];
genericRegion.mmr = !!(genericRegionSegmentFlags & 1);
genericRegion.template = (genericRegionSegmentFlags >> 1) & 3;
genericRegion.prediction = !!(genericRegionSegmentFlags & 8);
@ -1458,7 +1454,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
args = [genericRegion, data, position, end];
break;
case 48: // PageInformation
var pageInfo = {
const pageInfo = {
width: readUint32(data, position),
height: readUint32(data, position + 4),
resolutionX: readUint32(data, position + 8),
@ -1467,7 +1463,7 @@ const Jbig2Image = (function Jbig2ImageClosure() {
if (pageInfo.height === 0xffffffff) {
delete pageInfo.height;
}
var pageSegmentFlags = data[position + 16];
const pageSegmentFlags = data[position + 16];
readUint16(data, position + 17); // pageStripingInformation
pageInfo.lossless = !!(pageSegmentFlags & 1);
pageInfo.refinement = !!(pageSegmentFlags & 2);