const ccittEOL = -2;

[8000] Fix | Delete

const ccittEOF = -1;

[8001] Fix | Delete

const twoDimPass = 0;

[8002] Fix | Delete

const twoDimHoriz = 1;

[8003] Fix | Delete

const twoDimVert0 = 2;

[8004] Fix | Delete

const twoDimVertR1 = 3;

[8005] Fix | Delete

const twoDimVertL1 = 4;

[8006] Fix | Delete

const twoDimVertR2 = 5;

[8007] Fix | Delete

const twoDimVertL2 = 6;

[8008] Fix | Delete

const twoDimVertR3 = 7;

[8009] Fix | Delete

const twoDimVertL3 = 8;

[8010] Fix | Delete

const twoDimTable = [[-1, -1], [-1, -1], [7, twoDimVertL3], [7, twoDimVertR3], [6, twoDimVertL2], [6, twoDimVertL2], [6, twoDimVertR2], [6, twoDimVertR2], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [4, twoDimPass], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimHoriz], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertL1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [3, twoDimVertR1], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0], [1, twoDimVert0]];

[8011] Fix | Delete

const whiteTable1 = [[-1, -1], [12, ccittEOL], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [11, 1792], [11, 1792], [12, 1984], [12, 2048], [12, 2112], [12, 2176], [12, 2240], [12, 2304], [11, 1856], [11, 1856], [11, 1920], [11, 1920], [12, 2368], [12, 2432], [12, 2496], [12, 2560]];

[8012] Fix | Delete

const whiteTable2 = [[-1, -1], [-1, -1], [-1, -1], [-1, -1], [8, 29], [8, 29], [8, 30], [8, 30], [8, 45], [8, 45], [8, 46], [8, 46], [7, 22], [7, 22], [7, 22], [7, 22], [7, 23], [7, 23], [7, 23], [7, 23], [8, 47], [8, 47], [8, 48], [8, 48], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [6, 13], [7, 20], [7, 20], [7, 20], [7, 20], [8, 33], [8, 33], [8, 34], [8, 34], [8, 35], [8, 35], [8, 36], [8, 36], [8, 37], [8, 37], [8, 38], [8, 38], [7, 19], [7, 19], [7, 19], [7, 19], [8, 31], [8, 31], [8, 32], [8, 32], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 1], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [6, 12], [8, 53], [8, 53], [8, 54], [8, 54], [7, 26], [7, 26], [7, 26], [7, 26], [8, 39], [8, 39], [8, 40], [8, 40], [8, 41], [8, 41], [8, 42], [8, 42], [8, 43], [8, 43], [8, 44], [8, 44], [7, 21], [7, 21], [7, 21], [7, 21], [7, 28], [7, 28], [7, 28], [7, 28], [8, 61], [8, 61], [8, 62], [8, 62], [8, 63], [8, 63], [8, 0], [8, 0], [8, 320], [8, 320], [8, 384], [8, 384], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 10], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [5, 11], [7, 27], [7, 27], [7, 27], [7, 27], [8, 59], [8, 59], [8, 60], [8, 60], [9, 1472], [9, 1536], [9, 1600], [9, 1728], [7, 18], [7, 18], [7, 18], [7, 18], [7, 24], [7, 24], [7, 24], [7, 24], [8, 49], [8, 49], [8, 50], [8, 50], [8, 51], [8, 51], [8, 52], [8, 52], [7, 25], [7, 25], [7, 25], [7, 25], [8, 55], [8, 55], [8, 56], [8, 56], [8, 57], [8, 57], [8, 58], [8, 58], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 192], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [6, 1664], [8, 448], [8, 448], [8, 512], [8, 512], [9, 704], [9, 768], [8, 640], [8, 640], [8, 576], [8, 576], [9, 832], [9, 896], [9, 960], [9, 1024], [9, 1088], [9, 1152], [9, 1216], [9, 1280], [9, 1344], [9, 1408], [7, 256], [7, 256], [7, 256], [7, 256], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 2], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 128], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 8], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [5, 9], [6, 16], [6, 16], [6, 16], [6, 16], [6, 16], [6, 16], [6, 16], [6, 16], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [6, 17], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 4], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [4, 5], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 14], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [6, 15], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [5, 64], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 6], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7], [4, 7]];

[8013] Fix | Delete

const blackTable1 = [[-1, -1], [-1, -1], [12, ccittEOL], [12, ccittEOL], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [-1, -1], [11, 1792], [11, 1792], [11, 1792], [11, 1792], [12, 1984], [12, 1984], [12, 2048], [12, 2048], [12, 2112], [12, 2112], [12, 2176], [12, 2176], [12, 2240], [12, 2240], [12, 2304], [12, 2304], [11, 1856], [11, 1856], [11, 1856], [11, 1856], [11, 1920], [11, 1920], [11, 1920], [11, 1920], [12, 2368], [12, 2368], [12, 2432], [12, 2432], [12, 2496], [12, 2496], [12, 2560], [12, 2560], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [10, 18], [12, 52], [12, 52], [13, 640], [13, 704], [13, 768], [13, 832], [12, 55], [12, 55], [12, 56], [12, 56], [13, 1280], [13, 1344], [13, 1408], [13, 1472], [12, 59], [12, 59], [12, 60], [12, 60], [13, 1536], [13, 1600], [11, 24], [11, 24], [11, 24], [11, 24], [11, 25], [11, 25], [11, 25], [11, 25], [13, 1664], [13, 1728], [12, 320], [12, 320], [12, 384], [12, 384], [12, 448], [12, 448], [13, 512], [13, 576], [12, 53], [12, 53], [12, 54], [12, 54], [13, 896], [13, 960], [13, 1024], [13, 1088], [13, 1152], [13, 1216], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64], [10, 64]];

[8014] Fix | Delete

const blackTable2 = [[8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [8, 13], [11, 23], [11, 23], [12, 50], [12, 51], [12, 44], [12, 45], [12, 46], [12, 47], [12, 57], [12, 58], [12, 61], [12, 256], [10, 16], [10, 16], [10, 16], [10, 16], [10, 17], [10, 17], [10, 17], [10, 17], [12, 48], [12, 49], [12, 62], [12, 63], [12, 30], [12, 31], [12, 32], [12, 33], [12, 40], [12, 41], [11, 22], [11, 22], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [8, 14], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 10], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [7, 11], [9, 15], [9, 15], [9, 15], [9, 15], [9, 15], [9, 15], [9, 15], [9, 15], [12, 128], [12, 192], [12, 26], [12, 27], [12, 28], [12, 29], [11, 19], [11, 19], [11, 20], [11, 20], [12, 34], [12, 35], [12, 36], [12, 37], [12, 38], [12, 39], [11, 21], [11, 21], [12, 42], [12, 43], [10, 0], [10, 0], [10, 0], [10, 0], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12], [7, 12]];

[8015] Fix | Delete

const blackTable3 = [[-1, -1], [-1, -1], [-1, -1], [-1, -1], [6, 9], [6, 8], [5, 7], [5, 7], [4, 6], [4, 6], [4, 6], [4, 6], [4, 5], [4, 5], [4, 5], [4, 5], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 1], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [3, 4], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 3], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2], [2, 2]];

[8016] Fix | Delete

class CCITTFaxDecoder {

[8017] Fix | Delete

constructor(source, options = {}) {

[8018] Fix | Delete

if (!source || typeof source.next !== "function") {

[8019] Fix | Delete

throw new Error('CCITTFaxDecoder - invalid "source" parameter.');

[8020] Fix | Delete

}

[8021] Fix | Delete

this.source = source;

[8022] Fix | Delete

this.eof = false;

[8023] Fix | Delete

this.encoding = options.K || 0;

[8024] Fix | Delete

this.eoline = options.EndOfLine || false;

[8025] Fix | Delete

this.byteAlign = options.EncodedByteAlign || false;

[8026] Fix | Delete

this.columns = options.Columns || 1728;

[8027] Fix | Delete

this.rows = options.Rows || 0;

[8028] Fix | Delete

this.eoblock = options.EndOfBlock ?? true;

[8029] Fix | Delete

this.black = options.BlackIs1 || false;

[8030] Fix | Delete

this.codingLine = new Uint32Array(this.columns + 1);

[8031] Fix | Delete

this.refLine = new Uint32Array(this.columns + 2);

[8032] Fix | Delete

this.codingLine[0] = this.columns;

[8033] Fix | Delete

this.codingPos = 0;

[8034] Fix | Delete

this.row = 0;

[8035] Fix | Delete

this.nextLine2D = this.encoding < 0;

[8036] Fix | Delete

this.inputBits = 0;

[8037] Fix | Delete

this.inputBuf = 0;

[8038] Fix | Delete

this.outputBits = 0;

[8039] Fix | Delete

this.rowsDone = false;

[8040] Fix | Delete

let code1;

[8041] Fix | Delete

while ((code1 = this._lookBits(12)) === 0) {

[8042] Fix | Delete

this._eatBits(1);

[8043] Fix | Delete

}

[8044] Fix | Delete

if (code1 === 1) {

[8045] Fix | Delete

this._eatBits(12);

[8046] Fix | Delete

}

[8047] Fix | Delete

if (this.encoding > 0) {

[8048] Fix | Delete

this.nextLine2D = !this._lookBits(1);

[8049] Fix | Delete

this._eatBits(1);

[8050] Fix | Delete

}

[8051] Fix | Delete

}

[8052] Fix | Delete

readNextChar() {

[8053] Fix | Delete

if (this.eof) {

[8054] Fix | Delete

return -1;

[8055] Fix | Delete

}

[8056] Fix | Delete

const refLine = this.refLine;

[8057] Fix | Delete

const codingLine = this.codingLine;

[8058] Fix | Delete

const columns = this.columns;

[8059] Fix | Delete

let refPos, blackPixels, bits, i;

[8060] Fix | Delete

if (this.outputBits === 0) {

[8061] Fix | Delete

if (this.rowsDone) {

[8062] Fix | Delete

this.eof = true;

[8063] Fix | Delete

}

[8064] Fix | Delete

if (this.eof) {

[8065] Fix | Delete

return -1;

[8066] Fix | Delete

}

[8067] Fix | Delete

this.err = false;

[8068] Fix | Delete

let code1, code2, code3;

[8069] Fix | Delete

if (this.nextLine2D) {

[8070] Fix | Delete

for (i = 0; codingLine[i] < columns; ++i) {

[8071] Fix | Delete

refLine[i] = codingLine[i];

[8072] Fix | Delete

}

[8073] Fix | Delete

refLine[i++] = columns;

[8074] Fix | Delete

refLine[i] = columns;

[8075] Fix | Delete

codingLine[0] = 0;

[8076] Fix | Delete

this.codingPos = 0;

[8077] Fix | Delete

refPos = 0;

[8078] Fix | Delete

blackPixels = 0;

[8079] Fix | Delete

while (codingLine[this.codingPos] < columns) {

[8080] Fix | Delete

code1 = this._getTwoDimCode();

[8081] Fix | Delete

switch (code1) {

[8082] Fix | Delete

case twoDimPass:

[8083] Fix | Delete

this._addPixels(refLine[refPos + 1], blackPixels);

[8084] Fix | Delete

if (refLine[refPos + 1] < columns) {

[8085] Fix | Delete

refPos += 2;

[8086] Fix | Delete

}

[8087] Fix | Delete

break;

[8088] Fix | Delete

case twoDimHoriz:

[8089] Fix | Delete

code1 = code2 = 0;

[8090] Fix | Delete

if (blackPixels) {

[8091] Fix | Delete

do {

[8092] Fix | Delete

code1 += code3 = this._getBlackCode();

[8093] Fix | Delete

} while (code3 >= 64);

[8094] Fix | Delete

do {

[8095] Fix | Delete

code2 += code3 = this._getWhiteCode();

[8096] Fix | Delete

} while (code3 >= 64);

[8097] Fix | Delete

} else {

[8098] Fix | Delete

do {

[8099] Fix | Delete

code1 += code3 = this._getWhiteCode();

[8100] Fix | Delete

} while (code3 >= 64);

[8101] Fix | Delete

do {

[8102] Fix | Delete

code2 += code3 = this._getBlackCode();

[8103] Fix | Delete

} while (code3 >= 64);

[8104] Fix | Delete

}

[8105] Fix | Delete

this._addPixels(codingLine[this.codingPos] + code1, blackPixels);

[8106] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8107] Fix | Delete

this._addPixels(codingLine[this.codingPos] + code2, blackPixels ^ 1);

[8108] Fix | Delete

}

[8109] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8110] Fix | Delete

refPos += 2;

[8111] Fix | Delete

}

[8112] Fix | Delete

break;

[8113] Fix | Delete

case twoDimVertR3:

[8114] Fix | Delete

this._addPixels(refLine[refPos] + 3, blackPixels);

[8115] Fix | Delete

blackPixels ^= 1;

[8116] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8117] Fix | Delete

++refPos;

[8118] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8119] Fix | Delete

refPos += 2;

[8120] Fix | Delete

}

[8121] Fix | Delete

}

[8122] Fix | Delete

break;

[8123] Fix | Delete

case twoDimVertR2:

[8124] Fix | Delete

this._addPixels(refLine[refPos] + 2, blackPixels);

[8125] Fix | Delete

blackPixels ^= 1;

[8126] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8127] Fix | Delete

++refPos;

[8128] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8129] Fix | Delete

refPos += 2;

[8130] Fix | Delete

}

[8131] Fix | Delete

}

[8132] Fix | Delete

break;

[8133] Fix | Delete

case twoDimVertR1:

[8134] Fix | Delete

this._addPixels(refLine[refPos] + 1, blackPixels);

[8135] Fix | Delete

blackPixels ^= 1;

[8136] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8137] Fix | Delete

++refPos;

[8138] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8139] Fix | Delete

refPos += 2;

[8140] Fix | Delete

}

[8141] Fix | Delete

}

[8142] Fix | Delete

break;

[8143] Fix | Delete

case twoDimVert0:

[8144] Fix | Delete

this._addPixels(refLine[refPos], blackPixels);

[8145] Fix | Delete

blackPixels ^= 1;

[8146] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8147] Fix | Delete

++refPos;

[8148] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8149] Fix | Delete

refPos += 2;

[8150] Fix | Delete

}

[8151] Fix | Delete

}

[8152] Fix | Delete

break;

[8153] Fix | Delete

case twoDimVertL3:

[8154] Fix | Delete

this._addPixelsNeg(refLine[refPos] - 3, blackPixels);

[8155] Fix | Delete

blackPixels ^= 1;

[8156] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8157] Fix | Delete

if (refPos > 0) {

[8158] Fix | Delete

--refPos;

[8159] Fix | Delete

} else {

[8160] Fix | Delete

++refPos;

[8161] Fix | Delete

}

[8162] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8163] Fix | Delete

refPos += 2;

[8164] Fix | Delete

}

[8165] Fix | Delete

}

[8166] Fix | Delete

break;

[8167] Fix | Delete

case twoDimVertL2:

[8168] Fix | Delete

this._addPixelsNeg(refLine[refPos] - 2, blackPixels);

[8169] Fix | Delete

blackPixels ^= 1;

[8170] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8171] Fix | Delete

if (refPos > 0) {

[8172] Fix | Delete

--refPos;

[8173] Fix | Delete

} else {

[8174] Fix | Delete

++refPos;

[8175] Fix | Delete

}

[8176] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8177] Fix | Delete

refPos += 2;

[8178] Fix | Delete

}

[8179] Fix | Delete

}

[8180] Fix | Delete

break;

[8181] Fix | Delete

case twoDimVertL1:

[8182] Fix | Delete

this._addPixelsNeg(refLine[refPos] - 1, blackPixels);

[8183] Fix | Delete

blackPixels ^= 1;

[8184] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8185] Fix | Delete

if (refPos > 0) {

[8186] Fix | Delete

--refPos;

[8187] Fix | Delete

} else {

[8188] Fix | Delete

++refPos;

[8189] Fix | Delete

}

[8190] Fix | Delete

while (refLine[refPos] <= codingLine[this.codingPos] && refLine[refPos] < columns) {

[8191] Fix | Delete

refPos += 2;

[8192] Fix | Delete

}

[8193] Fix | Delete

}

[8194] Fix | Delete

break;

[8195] Fix | Delete

case ccittEOF:

[8196] Fix | Delete

this._addPixels(columns, 0);

[8197] Fix | Delete

this.eof = true;

[8198] Fix | Delete

break;

[8199] Fix | Delete

default:

[8200] Fix | Delete

info("bad 2d code");

[8201] Fix | Delete

this._addPixels(columns, 0);

[8202] Fix | Delete

this.err = true;

[8203] Fix | Delete

}

[8204] Fix | Delete

}

[8205] Fix | Delete

} else {

[8206] Fix | Delete

codingLine[0] = 0;

[8207] Fix | Delete

this.codingPos = 0;

[8208] Fix | Delete

blackPixels = 0;

[8209] Fix | Delete

while (codingLine[this.codingPos] < columns) {

[8210] Fix | Delete

code1 = 0;

[8211] Fix | Delete

if (blackPixels) {

[8212] Fix | Delete

do {

[8213] Fix | Delete

code1 += code3 = this._getBlackCode();

[8214] Fix | Delete

} while (code3 >= 64);

[8215] Fix | Delete

} else {

[8216] Fix | Delete

do {

[8217] Fix | Delete

code1 += code3 = this._getWhiteCode();

[8218] Fix | Delete

} while (code3 >= 64);

[8219] Fix | Delete

}

[8220] Fix | Delete

this._addPixels(codingLine[this.codingPos] + code1, blackPixels);

[8221] Fix | Delete

blackPixels ^= 1;

[8222] Fix | Delete

}

[8223] Fix | Delete

}

[8224] Fix | Delete

let gotEOL = false;

[8225] Fix | Delete

if (this.byteAlign) {

[8226] Fix | Delete

this.inputBits &= ~7;

[8227] Fix | Delete

}

[8228] Fix | Delete

if (!this.eoblock && this.row === this.rows - 1) {

[8229] Fix | Delete

this.rowsDone = true;

[8230] Fix | Delete

} else {

[8231] Fix | Delete

code1 = this._lookBits(12);

[8232] Fix | Delete

if (this.eoline) {

[8233] Fix | Delete

while (code1 !== ccittEOF && code1 !== 1) {

[8234] Fix | Delete

this._eatBits(1);

[8235] Fix | Delete

code1 = this._lookBits(12);

[8236] Fix | Delete

}

[8237] Fix | Delete

} else {

[8238] Fix | Delete

while (code1 === 0) {

[8239] Fix | Delete

this._eatBits(1);

[8240] Fix | Delete

code1 = this._lookBits(12);

[8241] Fix | Delete

}

[8242] Fix | Delete

}

[8243] Fix | Delete

if (code1 === 1) {

[8244] Fix | Delete

this._eatBits(12);

[8245] Fix | Delete

gotEOL = true;

[8246] Fix | Delete

} else if (code1 === ccittEOF) {

[8247] Fix | Delete

this.eof = true;

[8248] Fix | Delete

}

[8249] Fix | Delete

}

[8250] Fix | Delete

if (!this.eof && this.encoding > 0 && !this.rowsDone) {

[8251] Fix | Delete

this.nextLine2D = !this._lookBits(1);

[8252] Fix | Delete

this._eatBits(1);

[8253] Fix | Delete

}

[8254] Fix | Delete

if (this.eoblock && gotEOL && this.byteAlign) {

[8255] Fix | Delete

code1 = this._lookBits(12);

[8256] Fix | Delete

if (code1 === 1) {

[8257] Fix | Delete

this._eatBits(12);

[8258] Fix | Delete

if (this.encoding > 0) {

[8259] Fix | Delete

this._lookBits(1);

[8260] Fix | Delete

this._eatBits(1);

[8261] Fix | Delete

}

[8262] Fix | Delete

if (this.encoding >= 0) {

[8263] Fix | Delete

for (i = 0; i < 4; ++i) {

[8264] Fix | Delete

code1 = this._lookBits(12);

[8265] Fix | Delete

if (code1 !== 1) {

[8266] Fix | Delete

info("bad rtc code: " + code1);

[8267] Fix | Delete

}

[8268] Fix | Delete

this._eatBits(12);

[8269] Fix | Delete

if (this.encoding > 0) {

[8270] Fix | Delete

this._lookBits(1);

[8271] Fix | Delete

this._eatBits(1);

[8272] Fix | Delete

}

[8273] Fix | Delete

}

[8274] Fix | Delete

}

[8275] Fix | Delete

this.eof = true;

[8276] Fix | Delete

}

[8277] Fix | Delete

} else if (this.err && this.eoline) {

[8278] Fix | Delete

while (true) {

[8279] Fix | Delete

code1 = this._lookBits(13);

[8280] Fix | Delete

if (code1 === ccittEOF) {

[8281] Fix | Delete

this.eof = true;

[8282] Fix | Delete

return -1;

[8283] Fix | Delete

}

[8284] Fix | Delete

if (code1 >> 1 === 1) {

[8285] Fix | Delete

break;

[8286] Fix | Delete

}

[8287] Fix | Delete

this._eatBits(1);

[8288] Fix | Delete

}

[8289] Fix | Delete

this._eatBits(12);

[8290] Fix | Delete

if (this.encoding > 0) {

[8291] Fix | Delete

this._eatBits(1);

[8292] Fix | Delete

this.nextLine2D = !(code1 & 1);

[8293] Fix | Delete

}

[8294] Fix | Delete

}

[8295] Fix | Delete

this.outputBits = codingLine[0] > 0 ? codingLine[this.codingPos = 0] : codingLine[this.codingPos = 1];

[8296] Fix | Delete

this.row++;

[8297] Fix | Delete

}

[8298] Fix | Delete

let c;

[8299] Fix | Delete

if (this.outputBits >= 8) {

[8300] Fix | Delete

c = this.codingPos & 1 ? 0 : 0xff;

[8301] Fix | Delete

this.outputBits -= 8;

[8302] Fix | Delete

if (this.outputBits === 0 && codingLine[this.codingPos] < columns) {

[8303] Fix | Delete

this.codingPos++;

[8304] Fix | Delete

this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];

[8305] Fix | Delete

}

[8306] Fix | Delete

} else {

[8307] Fix | Delete

bits = 8;

[8308] Fix | Delete

c = 0;

[8309] Fix | Delete

do {

[8310] Fix | Delete

if (typeof this.outputBits !== "number") {

[8311] Fix | Delete

throw new FormatError('Invalid /CCITTFaxDecode data, "outputBits" must be a number.');

[8312] Fix | Delete

}

[8313] Fix | Delete

if (this.outputBits > bits) {

[8314] Fix | Delete

c <<= bits;

[8315] Fix | Delete

if (!(this.codingPos & 1)) {

[8316] Fix | Delete

c |= 0xff >> 8 - bits;

[8317] Fix | Delete

}

[8318] Fix | Delete

this.outputBits -= bits;

[8319] Fix | Delete

bits = 0;

[8320] Fix | Delete

} else {

[8321] Fix | Delete

c <<= this.outputBits;

[8322] Fix | Delete

if (!(this.codingPos & 1)) {

[8323] Fix | Delete

c |= 0xff >> 8 - this.outputBits;

[8324] Fix | Delete

}

[8325] Fix | Delete

bits -= this.outputBits;

[8326] Fix | Delete

this.outputBits = 0;

[8327] Fix | Delete

if (codingLine[this.codingPos] < columns) {

[8328] Fix | Delete

this.codingPos++;

[8329] Fix | Delete

this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];

[8330] Fix | Delete

} else if (bits > 0) {

[8331] Fix | Delete

c <<= bits;

[8332] Fix | Delete

bits = 0;

[8333] Fix | Delete

}

[8334] Fix | Delete

}

[8335] Fix | Delete

} while (bits);

[8336] Fix | Delete

}

[8337] Fix | Delete

if (this.black) {

[8338] Fix | Delete

c ^= 0xff;

[8339] Fix | Delete

}

[8340] Fix | Delete

return c;

[8341] Fix | Delete

}

[8342] Fix | Delete

_addPixels(a1, blackPixels) {

[8343] Fix | Delete

const codingLine = this.codingLine;

[8344] Fix | Delete

let codingPos = this.codingPos;

[8345] Fix | Delete

if (a1 > codingLine[codingPos]) {

[8346] Fix | Delete

if (a1 > this.columns) {

[8347] Fix | Delete

info("row is wrong length");

[8348] Fix | Delete

this.err = true;

[8349] Fix | Delete

a1 = this.columns;

[8350] Fix | Delete

}

[8351] Fix | Delete

if (codingPos & 1 ^ blackPixels) {

[8352] Fix | Delete

++codingPos;

[8353] Fix | Delete

}

[8354] Fix | Delete

codingLine[codingPos] = a1;

[8355] Fix | Delete

}

[8356] Fix | Delete

this.codingPos = codingPos;

[8357] Fix | Delete

}

[8358] Fix | Delete

_addPixelsNeg(a1, blackPixels) {

[8359] Fix | Delete

const codingLine = this.codingLine;

[8360] Fix | Delete

let codingPos = this.codingPos;

[8361] Fix | Delete

if (a1 > codingLine[codingPos]) {

[8362] Fix | Delete

if (a1 > this.columns) {

[8363] Fix | Delete

info("row is wrong length");

[8364] Fix | Delete

this.err = true;

[8365] Fix | Delete

a1 = this.columns;

[8366] Fix | Delete

}

[8367] Fix | Delete

if (codingPos & 1 ^ blackPixels) {

[8368] Fix | Delete

++codingPos;

[8369] Fix | Delete

}

[8370] Fix | Delete

codingLine[codingPos] = a1;

[8371] Fix | Delete

} else if (a1 < codingLine[codingPos]) {

[8372] Fix | Delete

if (a1 < 0) {

[8373] Fix | Delete

info("invalid code");

[8374] Fix | Delete

this.err = true;

[8375] Fix | Delete

a1 = 0;

[8376] Fix | Delete

}

[8377] Fix | Delete

while (codingPos > 0 && a1 < codingLine[codingPos - 1]) {

[8378] Fix | Delete

--codingPos;

[8379] Fix | Delete

}

[8380] Fix | Delete

codingLine[codingPos] = a1;

[8381] Fix | Delete

}

[8382] Fix | Delete

this.codingPos = codingPos;

[8383] Fix | Delete

}

[8384] Fix | Delete

_findTableCode(start, end, table, limit) {

[8385] Fix | Delete

const limitValue = limit || 0;

[8386] Fix | Delete

for (let i = start; i <= end; ++i) {

[8387] Fix | Delete

let code = this._lookBits(i);

[8388] Fix | Delete

if (code === ccittEOF) {

[8389] Fix | Delete

return [true, 1, false];

[8390] Fix | Delete

}

[8391] Fix | Delete

if (i < end) {

[8392] Fix | Delete

code <<= end - i;

[8393] Fix | Delete

}

[8394] Fix | Delete

if (!limitValue || code >= limitValue) {

[8395] Fix | Delete

const p = table[code - limitValue];

[8396] Fix | Delete

if (p[0] === i) {

[8397] Fix | Delete

this._eatBits(i);

[8398] Fix | Delete

return [true, p[1], true];

[8399] Fix | Delete

}

[8400] Fix | Delete

}

[8401] Fix | Delete

}

[8402] Fix | Delete

return [false, 0, false];

[8403] Fix | Delete

}

[8404] Fix | Delete

_getTwoDimCode() {

[8405] Fix | Delete

let code = 0;

[8406] Fix | Delete

let p;

[8407] Fix | Delete

if (this.eoblock) {

[8408] Fix | Delete

code = this._lookBits(7);

[8409] Fix | Delete

p = twoDimTable[code];

[8410] Fix | Delete

if (p?.[0] > 0) {

[8411] Fix | Delete

this._eatBits(p[0]);

[8412] Fix | Delete

return p[1];

[8413] Fix | Delete

}

[8414] Fix | Delete

} else {

[8415] Fix | Delete

const result = this._findTableCode(1, 7, twoDimTable);

[8416] Fix | Delete

if (result[0] && result[2]) {

[8417] Fix | Delete

return result[1];

[8418] Fix | Delete

}

[8419] Fix | Delete

}

[8420] Fix | Delete

info("Bad two dim code");

[8421] Fix | Delete

return ccittEOF;

[8422] Fix | Delete

}

[8423] Fix | Delete

_getWhiteCode() {

[8424] Fix | Delete

let code = 0;

[8425] Fix | Delete

let p;

[8426] Fix | Delete

if (this.eoblock) {

[8427] Fix | Delete

code = this._lookBits(12);

[8428] Fix | Delete

if (code === ccittEOF) {

[8429] Fix | Delete

return 1;

[8430] Fix | Delete

}

[8431] Fix | Delete

p = code >> 5 === 0 ? whiteTable1[code] : whiteTable2[code >> 3];

[8432] Fix | Delete

if (p[0] > 0) {

[8433] Fix | Delete

this._eatBits(p[0]);

[8434] Fix | Delete

return p[1];

[8435] Fix | Delete

}

[8436] Fix | Delete

} else {

[8437] Fix | Delete

let result = this._findTableCode(1, 9, whiteTable2);

[8438] Fix | Delete

if (result[0]) {

[8439] Fix | Delete

return result[1];

[8440] Fix | Delete

}

[8441] Fix | Delete

result = this._findTableCode(11, 12, whiteTable1);

[8442] Fix | Delete

if (result[0]) {

[8443] Fix | Delete

return result[1];

[8444] Fix | Delete

}

[8445] Fix | Delete

}

[8446] Fix | Delete

info("bad white code");

[8447] Fix | Delete

this._eatBits(1);

[8448] Fix | Delete

return 1;

[8449] Fix | Delete

}

[8450] Fix | Delete

_getBlackCode() {

[8451] Fix | Delete

let code, p;

[8452] Fix | Delete

if (this.eoblock) {

[8453] Fix | Delete

code = this._lookBits(13);

[8454] Fix | Delete

if (code === ccittEOF) {

[8455] Fix | Delete

return 1;

[8456] Fix | Delete

}

[8457] Fix | Delete

if (code >> 7 === 0) {

[8458] Fix | Delete

p = blackTable1[code];

[8459] Fix | Delete

} else if (code >> 9 === 0 && code >> 7 !== 0) {

[8460] Fix | Delete

p = blackTable2[(code >> 1) - 64];

[8461] Fix | Delete

} else {

[8462] Fix | Delete

p = blackTable3[code >> 7];

[8463] Fix | Delete

}

[8464] Fix | Delete

if (p[0] > 0) {

[8465] Fix | Delete

this._eatBits(p[0]);

[8466] Fix | Delete

return p[1];

[8467] Fix | Delete

}

[8468] Fix | Delete

} else {

[8469] Fix | Delete

let result = this._findTableCode(2, 6, blackTable3);

[8470] Fix | Delete

if (result[0]) {

[8471] Fix | Delete

return result[1];

[8472] Fix | Delete

}

[8473] Fix | Delete

result = this._findTableCode(7, 12, blackTable2, 64);

[8474] Fix | Delete

if (result[0]) {

[8475] Fix | Delete

return result[1];

[8476] Fix | Delete

}

[8477] Fix | Delete

result = this._findTableCode(10, 13, blackTable1);

[8478] Fix | Delete

if (result[0]) {

[8479] Fix | Delete

return result[1];

[8480] Fix | Delete

}

[8481] Fix | Delete

}

[8482] Fix | Delete

info("bad black code");

[8483] Fix | Delete

this._eatBits(1);

[8484] Fix | Delete

return 1;

[8485] Fix | Delete

}

[8486] Fix | Delete

_lookBits(n) {

[8487] Fix | Delete

let c;

[8488] Fix | Delete

while (this.inputBits < n) {

[8489] Fix | Delete

if ((c = this.source.next()) === -1) {

[8490] Fix | Delete

if (this.inputBits === 0) {

[8491] Fix | Delete

return ccittEOF;

[8492] Fix | Delete

}

[8493] Fix | Delete

return this.inputBuf << n - this.inputBits & 0xffff >> 16 - n;

[8494] Fix | Delete

}

[8495] Fix | Delete

this.inputBuf = this.inputBuf << 8 | c;

[8496] Fix | Delete

this.inputBits += 8;

[8497] Fix | Delete

}

[8498] Fix | Delete

return this.inputBuf >> this.inputBits - n & 0xffff >> 16 - n;

[8499] Fix | Delete