Andreas Gal
commit
0275a0a3d0
980
pdf.js
980
pdf.js
@ -908,6 +908,984 @@ var Ascii85Stream = (function() {
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return constructor;
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})();
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var CCITTFaxStream = (function() {
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const ccittEOL = -2;
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const twoDimPass = 0;
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const twoDimHoriz = 1;
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const twoDimVert0 = 2;
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const twoDimVertR1 = 3;
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const twoDimVertL1 = 4;
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const twoDimVertR2 = 5;
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const twoDimVertL2 = 6;
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const twoDimVertR3 = 7;
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const twoDimVertL3 = 8;
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const twoDimTable = [
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[-1, -1], [-1, -1], // 000000x
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[7, twoDimVertL3], // 0000010
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[7, twoDimVertR3], // 0000011
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[6, twoDimVertL2], [6, twoDimVertL2], // 000010x
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[6, twoDimVertR2], [6, twoDimVertR2], // 000011x
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[4, twoDimPass], [4, twoDimPass], // 0001xxx
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[4, twoDimPass], [4, twoDimPass],
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[4, twoDimPass], [4, twoDimPass],
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[4, twoDimPass], [4, twoDimPass],
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[3, twoDimHoriz], [3, twoDimHoriz], // 001xxxx
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimHoriz], [3, twoDimHoriz],
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[3, twoDimVertL1], [3, twoDimVertL1], // 010xxxx
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertL1], [3, twoDimVertL1],
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[3, twoDimVertR1], [3, twoDimVertR1], // 011xxxx
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[3, twoDimVertR1], [3, twoDimVertR1],
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[1, twoDimVert0], [1, twoDimVert0], // 1xxxxxx
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0],
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[1, twoDimVert0], [1, twoDimVert0]
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];
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const whiteTable1 = [
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[-1, -1], // 00000
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[12, ccittEOL], // 00001
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[-1, -1], [-1, -1], // 0001x
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 001xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 010xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 011xx
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[11, 1792], [11, 1792], // 1000x
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[12, 1984], // 10010
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[12, 2048], // 10011
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[12, 2112], // 10100
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[12, 2176], // 10101
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[12, 2240], // 10110
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[12, 2304], // 10111
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[11, 1856], [11, 1856], // 1100x
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[11, 1920], [11, 1920], // 1101x
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[12, 2368], // 11100
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[12, 2432], // 11101
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[12, 2496], // 11110
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[12, 2560] // 11111
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];
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const whiteTable2 = [
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000000xx
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[8, 29], [8, 29], // 00000010x
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[8, 30], [8, 30], // 00000011x
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[8, 45], [8, 45], // 00000100x
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[8, 46], [8, 46], // 00000101x
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[7, 22], [7, 22], [7, 22], [7, 22], // 0000011xx
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[7, 23], [7, 23], [7, 23], [7, 23], // 0000100xx
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[8, 47], [8, 47], // 00001010x
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[8, 48], [8, 48], // 00001011x
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[6, 13], [6, 13], [6, 13], [6, 13], // 000011xxx
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[6, 13], [6, 13], [6, 13], [6, 13],
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[7, 20], [7, 20], [7, 20], [7, 20], // 0001000xx
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[8, 33], [8, 33], // 00010010x
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[8, 34], [8, 34], // 00010011x
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[8, 35], [8, 35], // 00010100x
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[8, 36], [8, 36], // 00010101x
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[8, 37], [8, 37], // 00010110x
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[8, 38], [8, 38], // 00010111x
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[7, 19], [7, 19], [7, 19], [7, 19], // 0001100xx
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[8, 31], [8, 31], // 00011010x
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[8, 32], [8, 32], // 00011011x
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[6, 1], [6, 1], [6, 1], [6, 1], // 000111xxx
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[6, 1], [6, 1], [6, 1], [6, 1],
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[6, 12], [6, 12], [6, 12], [6, 12], // 001000xxx
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[6, 12], [6, 12], [6, 12], [6, 12],
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[8, 53], [8, 53], // 00100100x
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[8, 54], [8, 54], // 00100101x
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[7, 26], [7, 26], [7, 26], [7, 26], // 0010011xx
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[8, 39], [8, 39], // 00101000x
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[8, 40], [8, 40], // 00101001x
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[8, 41], [8, 41], // 00101010x
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[8, 42], [8, 42], // 00101011x
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[8, 43], [8, 43], // 00101100x
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[8, 44], [8, 44], // 00101101x
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[7, 21], [7, 21], [7, 21], [7, 21], // 0010111xx
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[7, 28], [7, 28], [7, 28], [7, 28], // 0011000xx
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[8, 61], [8, 61], // 00110010x
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[8, 62], [8, 62], // 00110011x
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[8, 63], [8, 63], // 00110100x
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[8, 0], [8, 0], // 00110101x
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[8, 320], [8, 320], // 00110110x
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[8, 384], [8, 384], // 00110111x
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[5, 10], [5, 10], [5, 10], [5, 10], // 00111xxxx
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[5, 10], [5, 10], [5, 10], [5, 10],
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[5, 10], [5, 10], [5, 10], [5, 10],
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[5, 10], [5, 10], [5, 10], [5, 10],
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[5, 11], [5, 11], [5, 11], [5, 11], // 01000xxxx
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[5, 11], [5, 11], [5, 11], [5, 11],
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[5, 11], [5, 11], [5, 11], [5, 11],
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[5, 11], [5, 11], [5, 11], [5, 11],
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[7, 27], [7, 27], [7, 27], [7, 27], // 0100100xx
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[8, 59], [8, 59], // 01001010x
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[8, 60], [8, 60], // 01001011x
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[9, 1472], // 010011000
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[9, 1536], // 010011001
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[9, 1600], // 010011010
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[9, 1728], // 010011011
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[7, 18], [7, 18], [7, 18], [7, 18], // 0100111xx
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[7, 24], [7, 24], [7, 24], [7, 24], // 0101000xx
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[8, 49], [8, 49], // 01010010x
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[8, 50], [8, 50], // 01010011x
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[8, 51], [8, 51], // 01010100x
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[8, 52], [8, 52], // 01010101x
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[7, 25], [7, 25], [7, 25], [7, 25], // 0101011xx
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[8, 55], [8, 55], // 01011000x
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[8, 56], [8, 56], // 01011001x
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[8, 57], [8, 57], // 01011010x
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[8, 58], [8, 58], // 01011011x
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[6, 192], [6, 192], [6, 192], [6, 192], // 010111xxx
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[6, 192], [6, 192], [6, 192], [6, 192],
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[6, 1664], [6, 1664], [6, 1664], [6, 1664], // 011000xxx
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[6, 1664], [6, 1664], [6, 1664], [6, 1664],
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[8, 448], [8, 448], // 01100100x
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[8, 512], [8, 512], // 01100101x
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[9, 704], // 011001100
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[9, 768], // 011001101
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[8, 640], [8, 640], // 01100111x
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[8, 576], [8, 576], // 01101000x
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[9, 832], // 011010010
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[9, 896], // 011010011
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[9, 960], // 011010100
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[9, 1024], // 011010101
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[9, 1088], // 011010110
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[9, 1152], // 011010111
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[9, 1216], // 011011000
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[9, 1280], // 011011001
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[9, 1344], // 011011010
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[9, 1408], // 011011011
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[7, 256], [7, 256], [7, 256], [7, 256], // 0110111xx
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[4, 2], [4, 2], [4, 2], [4, 2], // 0111xxxxx
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 2], [4, 2], [4, 2], [4, 2],
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[4, 3], [4, 3], [4, 3], [4, 3], // 1000xxxxx
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[4, 3], [4, 3], [4, 3], [4, 3],
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[5, 128], [5, 128], [5, 128], [5, 128], // 10010xxxx
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[5, 128], [5, 128], [5, 128], [5, 128],
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[5, 128], [5, 128], [5, 128], [5, 128],
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[5, 128], [5, 128], [5, 128], [5, 128],
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[5, 8], [5, 8], [5, 8], [5, 8], // 10011xxxx
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[5, 8], [5, 8], [5, 8], [5, 8],
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[5, 8], [5, 8], [5, 8], [5, 8],
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[5, 8], [5, 8], [5, 8], [5, 8],
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[5, 9], [5, 9], [5, 9], [5, 9], // 10100xxxx
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[5, 9], [5, 9], [5, 9], [5, 9],
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[5, 9], [5, 9], [5, 9], [5, 9],
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[5, 9], [5, 9], [5, 9], [5, 9],
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[6, 16], [6, 16], [6, 16], [6, 16], // 101010xxx
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[6, 16], [6, 16], [6, 16], [6, 16],
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[6, 17], [6, 17], [6, 17], [6, 17], // 101011xxx
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[6, 17], [6, 17], [6, 17], [6, 17],
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[4, 4], [4, 4], [4, 4], [4, 4], // 1011xxxxx
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 4], [4, 4], [4, 4], [4, 4],
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[4, 5], [4, 5], [4, 5], [4, 5], // 1100xxxxx
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[4, 5], [4, 5], [4, 5], [4, 5],
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[6, 14], [6, 14], [6, 14], [6, 14], // 110100xxx
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[6, 14], [6, 14], [6, 14], [6, 14],
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[6, 15], [6, 15], [6, 15], [6, 15], // 110101xxx
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[6, 15], [6, 15], [6, 15], [6, 15],
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[5, 64], [5, 64], [5, 64], [5, 64], // 11011xxxx
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[5, 64], [5, 64], [5, 64], [5, 64],
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[5, 64], [5, 64], [5, 64], [5, 64],
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[5, 64], [5, 64], [5, 64], [5, 64],
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[4, 6], [4, 6], [4, 6], [4, 6], // 1110xxxxx
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 6], [4, 6], [4, 6], [4, 6],
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[4, 7], [4, 7], [4, 7], [4, 7], // 1111xxxxx
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7],
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[4, 7], [4, 7], [4, 7], [4, 7]
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];
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const blackTable1 = [
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[-1, -1], [-1, -1], // 000000000000x
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[12, ccittEOL], [12, ccittEOL], // 000000000001x
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000001xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000010xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000011xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000100xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000101xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000110xx
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[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 00000000111xx
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[11, 1792], [11, 1792], [11, 1792], [11, 1792], // 00000001000xx
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[12, 1984], [12, 1984], // 000000010010x
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[12, 2048], [12, 2048], // 000000010011x
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[12, 2112], [12, 2112], // 000000010100x
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[12, 2176], [12, 2176], // 000000010101x
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[12, 2240], [12, 2240], // 000000010110x
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[12, 2304], [12, 2304], // 000000010111x
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[11, 1856], [11, 1856], [11, 1856], [11, 1856], // 00000001100xx
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[11, 1920], [11, 1920], [11, 1920], [11, 1920], // 00000001101xx
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[12, 2368], [12, 2368], // 000000011100x
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[12, 2432], [12, 2432], // 000000011101x
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[12, 2496], [12, 2496], // 000000011110x
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[12, 2560], [12, 2560], // 000000011111x
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[10, 18], [10, 18], [10, 18], [10, 18], // 0000001000xxx
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[10, 18], [10, 18], [10, 18], [10, 18],
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[12, 52], [12, 52], // 000000100100x
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[13, 640], // 0000001001010
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[13, 704], // 0000001001011
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[13, 768], // 0000001001100
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[13, 832], // 0000001001101
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[12, 55], [12, 55], // 000000100111x
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[12, 56], [12, 56], // 000000101000x
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[13, 1280], // 0000001010010
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[13, 1344], // 0000001010011
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[13, 1408], // 0000001010100
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[13, 1472], // 0000001010101
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[12, 59], [12, 59], // 000000101011x
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[12, 60], [12, 60], // 000000101100x
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[13, 1536], // 0000001011010
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[13, 1600], // 0000001011011
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[11, 24], [11, 24], [11, 24], [11, 24], // 00000010111xx
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[11, 25], [11, 25], [11, 25], [11, 25], // 00000011000xx
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[13, 1664], // 0000001100100
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[13, 1728], // 0000001100101
|
||||
[12, 320], [12, 320], // 000000110011x
|
||||
[12, 384], [12, 384], // 000000110100x
|
||||
[12, 448], [12, 448], // 000000110101x
|
||||
[13, 512], // 0000001101100
|
||||
[13, 576], // 0000001101101
|
||||
[12, 53], [12, 53], // 000000110111x
|
||||
[12, 54], [12, 54], // 000000111000x
|
||||
[13, 896], // 0000001110010
|
||||
[13, 960], // 0000001110011
|
||||
[13, 1024], // 0000001110100
|
||||
[13, 1088], // 0000001110101
|
||||
[13, 1152], // 0000001110110
|
||||
[13, 1216], // 0000001110111
|
||||
[10, 64], [10, 64], [10, 64], [10, 64], // 0000001111xxx
|
||||
[10, 64], [10, 64], [10, 64], [10, 64]
|
||||
];
|
||||
|
||||
const blackTable2 = [
|
||||
[8, 13], [8, 13], [8, 13], [8, 13], // 00000100xxxx
|
||||
[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], // 00000101000x
|
||||
[12, 50], // 000001010010
|
||||
[12, 51], // 000001010011
|
||||
[12, 44], // 000001010100
|
||||
[12, 45], // 000001010101
|
||||
[12, 46], // 000001010110
|
||||
[12, 47], // 000001010111
|
||||
[12, 57], // 000001011000
|
||||
[12, 58], // 000001011001
|
||||
[12, 61], // 000001011010
|
||||
[12, 256], // 000001011011
|
||||
[10, 16], [10, 16], [10, 16], [10, 16], // 0000010111xx
|
||||
[10, 17], [10, 17], [10, 17], [10, 17], // 0000011000xx
|
||||
[12, 48], // 000001100100
|
||||
[12, 49], // 000001100101
|
||||
[12, 62], // 000001100110
|
||||
[12, 63], // 000001100111
|
||||
[12, 30], // 000001101000
|
||||
[12, 31], // 000001101001
|
||||
[12, 32], // 000001101010
|
||||
[12, 33], // 000001101011
|
||||
[12, 40], // 000001101100
|
||||
[12, 41], // 000001101101
|
||||
[11, 22], [11, 22], // 00000110111x
|
||||
[8, 14], [8, 14], [8, 14], [8, 14], // 00000111xxxx
|
||||
[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], // 0000100xxxxx
|
||||
[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], // 0000101xxxxx
|
||||
[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], // 000011000xxx
|
||||
[9, 15], [9, 15], [9, 15], [9, 15],
|
||||
[12, 128], // 000011001000
|
||||
[12, 192], // 000011001001
|
||||
[12, 26], // 000011001010
|
||||
[12, 27], // 000011001011
|
||||
[12, 28], // 000011001100
|
||||
[12, 29], // 000011001101
|
||||
[11, 19], [11, 19], // 00001100111x
|
||||
[11, 20], [11, 20], // 00001101000x
|
||||
[12, 34], // 000011010010
|
||||
[12, 35], // 000011010011
|
||||
[12, 36], // 000011010100
|
||||
[12, 37], // 000011010101
|
||||
[12, 38], // 000011010110
|
||||
[12, 39], // 000011010111
|
||||
[11, 21], [11, 21], // 00001101100x
|
||||
[12, 42], // 000011011010
|
||||
[12, 43], // 000011011011
|
||||
[10, 0], [10, 0], [10, 0], [10, 0], // 0000110111xx
|
||||
[7, 12], [7, 12], [7, 12], [7, 12], // 0000111xxxxx
|
||||
[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]
|
||||
];
|
||||
|
||||
const blackTable3 = [
|
||||
[-1, -1], [-1, -1], [-1, -1], [-1, -1], // 0000xx
|
||||
[6, 9], // 000100
|
||||
[6, 8], // 000101
|
||||
[5, 7], [5, 7], // 00011x
|
||||
[4, 6], [4, 6], [4, 6], [4, 6], // 0010xx
|
||||
[4, 5], [4, 5], [4, 5], [4, 5], // 0011xx
|
||||
[3, 1], [3, 1], [3, 1], [3, 1], // 010xxx
|
||||
[3, 1], [3, 1], [3, 1], [3, 1],
|
||||
[3, 4], [3, 4], [3, 4], [3, 4], // 011xxx
|
||||
[3, 4], [3, 4], [3, 4], [3, 4],
|
||||
[2, 3], [2, 3], [2, 3], [2, 3], // 10xxxx
|
||||
[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], // 11xxxx
|
||||
[2, 2], [2, 2], [2, 2], [2, 2],
|
||||
[2, 2], [2, 2], [2, 2], [2, 2],
|
||||
[2, 2], [2, 2], [2, 2], [2, 2]
|
||||
];
|
||||
|
||||
function constructor(str, params) {
|
||||
this.str = str;
|
||||
this.dict = str.dict;
|
||||
|
||||
params = params || new Dict();
|
||||
|
||||
this.encoding = params.get("K") || 0;
|
||||
this.eoline = params.get("EndOfLine") || false;
|
||||
this.byteAlign = params.get("EncodedByteAlign") || false;
|
||||
this.columns = params.get("Columns") || 1728;
|
||||
this.rows = params.get("Rows") || 0;
|
||||
var eoblock = params.get("EndOfBlock");
|
||||
if (eoblock == null)
|
||||
eoblock = true;
|
||||
this.eoblock = eoblock;
|
||||
this.black = params.get("BlackIs1") || false;
|
||||
|
||||
this.codingLine = new Uint32Array(this.columns + 1);
|
||||
this.refLine = new Uint32Array(this.columns + 2);
|
||||
|
||||
this.codingLine[0] = this.columns;
|
||||
this.codingPos = 0;
|
||||
|
||||
this.row = 0;
|
||||
this.nextLine2D = this.encoding < 0;
|
||||
this.inputBits = 0;
|
||||
this.inputBuf;
|
||||
this.outputBits = 0;
|
||||
this.buf = EOF;
|
||||
|
||||
var code1;
|
||||
while ((code1 = this.lookBits(12)) == 0) {
|
||||
this.eatBits(1);
|
||||
}
|
||||
if (code1 == 1) {
|
||||
this.eatBits(12);
|
||||
}
|
||||
if (this.encoding > 0) {
|
||||
this.nextLine2D = !this.lookBits(1);
|
||||
this.eatBits(1);
|
||||
}
|
||||
|
||||
DecodeStream.call(this);
|
||||
}
|
||||
|
||||
constructor.prototype = Object.create(DecodeStream.prototype);
|
||||
constructor.prototype.readBlock = function() {
|
||||
while (!this.eof) {
|
||||
var c = this.lookChar();
|
||||
this.buf = EOF;
|
||||
this.ensureBuffer(this.bufferLength + 1);
|
||||
this.buffer[this.bufferLength++] = c;
|
||||
}
|
||||
};
|
||||
constructor.prototype.addPixels = function(a1, blackPixels) {
|
||||
var codingLine = this.codingLine;
|
||||
var codingPos = this.codingPos;
|
||||
|
||||
if (a1 > codingLine[codingPos]) {
|
||||
if (a1 > this.columns) {
|
||||
warn("row is wrong length");
|
||||
this.err = true;
|
||||
a1 = this.columns;
|
||||
}
|
||||
if ((codingPos & 1) ^ blackPixels) {
|
||||
++codingPos;
|
||||
}
|
||||
|
||||
codingLine[codingPos] = a1;
|
||||
}
|
||||
this.codingPos = codingPos;
|
||||
};
|
||||
constructor.prototype.addPixelsNeg = function(a1, blackPixels) {
|
||||
var codingLine = this.codingLine;
|
||||
var codingPos = this.codingPos;
|
||||
|
||||
if (a1 > codingLine[codingPos]) {
|
||||
if (a1 > this.columns) {
|
||||
warn("row is wrong length");
|
||||
this.err = true;
|
||||
a1 = this.columns;
|
||||
}
|
||||
if ((codingPos & 1) ^ blackPixels)
|
||||
++codingPos;
|
||||
|
||||
codingLine[codingPos] = a1;
|
||||
} else if (a1 < codingLine[codingPos]) {
|
||||
if (a1 < 0) {
|
||||
warn("invalid code");
|
||||
this.err = true;
|
||||
a1 = 0;
|
||||
}
|
||||
while (codingPos > 0 && a1 < codingLine[codingPos - 1])
|
||||
--codingPos;
|
||||
codingLine[codingPos] = a1;
|
||||
}
|
||||
|
||||
this.codingPos = codingPos;
|
||||
};
|
||||
constructor.prototype.lookChar = function() {
|
||||
var refLine = this.refLine;
|
||||
var codingLine = this.codingLine;
|
||||
var columns = this.columns;
|
||||
|
||||
var refPos, blackPixels, bits;
|
||||
|
||||
if (this.buf != EOF)
|
||||
return buf;
|
||||
|
||||
if (this.outputBits == 0) {
|
||||
if (this.eof)
|
||||
return;
|
||||
|
||||
this.err = false;
|
||||
|
||||
if (this.nextLine2D) {
|
||||
for (var i = 0; codingLine[i] < columns; ++i)
|
||||
refLine[i] = codingLine[i];
|
||||
|
||||
refLine[i++] = columns;
|
||||
refLine[i] = columns;
|
||||
codingLine[0] = 0;
|
||||
this.codingPos = 0;
|
||||
refPos = 0;
|
||||
blackPixels = 0;
|
||||
|
||||
while (codingLine[this.codingPos] < columns) {
|
||||
var code1 = this.getTwoDimCode();
|
||||
switch (code1) {
|
||||
case twoDimPass:
|
||||
this.addPixels(refLine[refPos + 1], blackPixels);
|
||||
if (refLine[refPos + 1] < columns)
|
||||
refPos += 2;
|
||||
break;
|
||||
case twoDimHoriz:
|
||||
var code1 = 0, code2 = 0;
|
||||
if (blackPixels) {
|
||||
var code3;
|
||||
do {
|
||||
code1 += (code3 = this.getBlackCode());
|
||||
} while (code3 >= 64);
|
||||
do {
|
||||
code2 += (code3 = this.getWhiteCode());
|
||||
} while (code3 >= 64);
|
||||
} else {
|
||||
var code3;
|
||||
do {
|
||||
code1 += (code3 = this.getWhiteCode());
|
||||
} while (code3 >= 64);
|
||||
do {
|
||||
code2 += (code3 = this.getBlackCode());
|
||||
} while (code3 >= 64);
|
||||
}
|
||||
this.addPixels(codingLine[this.codingPos] + code1, blackPixels);
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
this.addPixels(codingLine[this.codingPos] + code2,
|
||||
blackPixels ^ 1);
|
||||
}
|
||||
while (refLine[refPos] <= codingLine[this.codingPos]
|
||||
&& refLine[refPos] < columns) {
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVertR3:
|
||||
this.addPixels(refLine[refPos] + 3, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVertR2:
|
||||
this.addPixels(refLine[refPos] + 2, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns) {
|
||||
refPos += 2;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case twoDimVertR1:
|
||||
this.addPixels(refLine[refPos] + 1, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVert0:
|
||||
this.addPixels(refLine[refPos], blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVertL3:
|
||||
this.addPixelsNeg(refLine[refPos] - 3, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
if (refPos > 0)
|
||||
--refPos;
|
||||
else
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVertL2:
|
||||
this.addPixelsNeg(refLine[refPos] - 2, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
if (refPos > 0)
|
||||
--refPos;
|
||||
else
|
||||
++refPos;
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case twoDimVertL1:
|
||||
this.addPixelsNeg(refLine[refPos] - 1, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
if (refPos > 0)
|
||||
--refPos;
|
||||
else
|
||||
++refPos;
|
||||
|
||||
while (refLine[refPos] <= codingLine[this.codingPos] &&
|
||||
refLine[refPos] < columns)
|
||||
refPos += 2;
|
||||
}
|
||||
break;
|
||||
case EOF:
|
||||
this.addPixels(columns, 0);
|
||||
this.eof = true;
|
||||
break;
|
||||
default:
|
||||
warn("bad 2d code");
|
||||
this.addPixels(columns, 0);
|
||||
this.err = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
codingLine[0] = 0;
|
||||
this.codingPos = 0;
|
||||
blackPixels = 0;
|
||||
while(codingLine[this.codingPos] < columns) {
|
||||
code1 = 0;
|
||||
if (blackPixels) {
|
||||
do {
|
||||
code1 += (code3 = this.getBlackCode());
|
||||
} while (code3 >= 64);
|
||||
} else {
|
||||
do {
|
||||
code1 += (code3 = this.getWhiteCode());
|
||||
} while (code3 >= 64);
|
||||
}
|
||||
this.addPixels(codingLine[this.codingPos] + code1, blackPixels);
|
||||
blackPixels ^= 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (this.byteAlign)
|
||||
inputBits &= ~7;
|
||||
|
||||
var gotEOL = false;
|
||||
|
||||
if (!this.eoblock && this.row == this.rows - 1) {
|
||||
this.eof = true;
|
||||
} else {
|
||||
code1 = this.lookBits(12);
|
||||
while (code1 == 0) {
|
||||
this.eatBits(1);
|
||||
code1 = this.lookBits(12);
|
||||
}
|
||||
if (code1 == 1) {
|
||||
this.eatBits(12);
|
||||
gotEOL = true;
|
||||
} else if (code1 == EOF) {
|
||||
this.eof = true;
|
||||
}
|
||||
}
|
||||
|
||||
if (!this.eof && this.encoding > 0) {
|
||||
this.nextLine2D = !this.lookBits(1);
|
||||
this.eatBits(1);
|
||||
}
|
||||
|
||||
if (this.eoblock && gotEOL) {
|
||||
code1 = this.lookBits(12);
|
||||
if (code1 == 1) {
|
||||
this.eatBits(12);
|
||||
if (this.encoding > 0) {
|
||||
this.lookBits(1);
|
||||
this.eatBits(1);
|
||||
}
|
||||
if (this.encoding >= 0) {
|
||||
for (var i = 0; i < 4; ++i) {
|
||||
code1 = this.lookBits(12);
|
||||
if (code1 != 1)
|
||||
warning("bad rtc code");
|
||||
this.eatBits(12);
|
||||
if (this.encoding > 0) {
|
||||
this.lookBits(1);
|
||||
this.eatBits(1);
|
||||
}
|
||||
}
|
||||
}
|
||||
this.eof = true;
|
||||
}
|
||||
} else if (this.err && this.eoline) {
|
||||
var code1;
|
||||
while (true) {
|
||||
code1 = this.lookBits(13);
|
||||
if (code1 == EOF) {
|
||||
this.eof = true;
|
||||
return;
|
||||
}
|
||||
if ((code1 >> 1) == 1) {
|
||||
break;
|
||||
}
|
||||
this.eatBits(1);
|
||||
}
|
||||
this.eatBits(12);
|
||||
if (this.encoding > 0) {
|
||||
this.eatBits(1);
|
||||
this.nextLine2D = !(code1 & 1);
|
||||
}
|
||||
}
|
||||
|
||||
if (codingLine[0] > 0)
|
||||
this.outputBits = codingLine[this.codingPos = 0];
|
||||
else
|
||||
this.outputBits = codingLine[this.codingPos = 1];
|
||||
this.row++;
|
||||
}
|
||||
|
||||
if (this.outputBits >= 8) {
|
||||
this.buf = (this.codingPos & 1) ? 0 : 0xFF;
|
||||
this.outputBits -= 8;
|
||||
if (this.outputBits == 0 && codingLine[this.codingPos] < columns) {
|
||||
this.codingPos++;
|
||||
this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
|
||||
}
|
||||
} else {
|
||||
var bits = 8;
|
||||
this.buf = 0;
|
||||
do {
|
||||
if (this.outputBits > bits) {
|
||||
this.buf <<= bits;
|
||||
if (!(this.codingPos & 1)) {
|
||||
this.buf |= 0xFF >> (8 - bits);
|
||||
}
|
||||
this.outputBits -= bits;
|
||||
bits = 0;
|
||||
} else {
|
||||
this.buf <<= this.outputBits;
|
||||
if (!(this.codingPos & 1)) {
|
||||
this.buf |= 0xFF >> (8 - this.outputBits);
|
||||
}
|
||||
bits -= this.outputBits;
|
||||
this.outputBits = 0;
|
||||
if (codingLine[this.codingPos] < columns) {
|
||||
this.codingPos++;
|
||||
this.outputBits = codingLine[this.codingPos] - codingLine[this.codingPos - 1];
|
||||
} else if (bits > 0) {
|
||||
this.buf <<= bits;
|
||||
bits = 0;
|
||||
}
|
||||
}
|
||||
} while (bits);
|
||||
}
|
||||
if (this.black) {
|
||||
this.buf ^= 0xFF;
|
||||
}
|
||||
return this.buf;
|
||||
};
|
||||
constructor.prototype.getTwoDimCode = function() {
|
||||
var code = 0;
|
||||
var p;
|
||||
if (this.eoblock) {
|
||||
code = this.lookBits(7);
|
||||
p = twoDimTable[code];
|
||||
if (p[0] > 0) {
|
||||
this.eatBits(p[0]);
|
||||
return p[1];
|
||||
}
|
||||
} else {
|
||||
for (var n = 1; n <= 7; ++n) {
|
||||
code = this.lookBits(n);
|
||||
if (n < 7) {
|
||||
code <<= 7 - n;
|
||||
}
|
||||
p = twoDimTable[code];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
warn("Bad two dim code");
|
||||
return EOF;
|
||||
};
|
||||
|
||||
constructor.prototype.getWhiteCode = function() {
|
||||
var code = 0;
|
||||
var p;
|
||||
var n;
|
||||
if (this.eoblock) {
|
||||
code = this.lookBits(12);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
|
||||
if ((code >> 5) == 0)
|
||||
p = whiteTable1[code];
|
||||
else
|
||||
p = whiteTable2[code >> 3];
|
||||
|
||||
if (p[0] > 0) {
|
||||
this.eatBits(p[0]);
|
||||
return p[1];
|
||||
}
|
||||
} else {
|
||||
for (var n = 1; n <= 9; ++n) {
|
||||
code = this.lookBits(n);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
|
||||
if (n < 9)
|
||||
code <<= 9 - n;
|
||||
p = whiteTable2[code];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[0];
|
||||
}
|
||||
}
|
||||
for (var n = 11; n <= 12; ++n) {
|
||||
code == this.lookBits(n);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
if (n < 12)
|
||||
code <<= 12 - n;
|
||||
p = whiteTable1[code];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
warn("bad white code");
|
||||
this.eatBits(1);
|
||||
return 1;
|
||||
};
|
||||
constructor.prototype.getBlackCode = function() {
|
||||
var code, p, n;
|
||||
if (this.eoblock) {
|
||||
code = this.lookBits(13);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
if ((code >> 7) == 0)
|
||||
p = blackTable1[code];
|
||||
else if ((code >> 9) == 0 && (code >> 7) != 0)
|
||||
p = blackTable2[(code >> 1) - 64];
|
||||
else
|
||||
p = blackTable3[code >> 7];
|
||||
|
||||
if (p[0] > 0) {
|
||||
this.eatBits(p[0]);
|
||||
return p[1];
|
||||
}
|
||||
} else {
|
||||
for (var n = 2; n <= 6; ++n) {
|
||||
code = this.lookBits(n);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
if (n < 6)
|
||||
code <<= 6 - n;
|
||||
|
||||
p = blackTable3[code];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[1];
|
||||
}
|
||||
}
|
||||
for (var n = 7; n <= 12; ++n) {
|
||||
code = this.lookBits(n);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
if (n < 12)
|
||||
code <<= 12 - n;
|
||||
if (code >= 64) {
|
||||
p = blackTable2[code - 64];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
for (n = 10; n <= 13; ++n) {
|
||||
code = this.lookBits(n);
|
||||
if (code == EOF)
|
||||
return 1;
|
||||
if (n < 13)
|
||||
code << 13 - n;
|
||||
p = blackTable1[code];
|
||||
if (p[0] == n) {
|
||||
this.eatBits(n);
|
||||
return p[1];
|
||||
}
|
||||
}
|
||||
}
|
||||
warn("bad black code");
|
||||
this.eatBits(1);
|
||||
return 1;
|
||||
};
|
||||
constructor.prototype.lookBits = function(n) {
|
||||
var c;
|
||||
while (this.inputBits < n) {
|
||||
if ((c = this.str.getByte()) == null) {
|
||||
if (this.inputBits == 0)
|
||||
return EOF;
|
||||
return (this.inputBuf << (n - this.inputBits))
|
||||
& (0xFFFF >> (16 - n));
|
||||
}
|
||||
this.inputBuf = (this.inputBuf << 8) + c;
|
||||
this.inputBits += 8;
|
||||
}
|
||||
return (this.inputBuf >> (this.inputBits - n)) & (0xFFFF >> (16 - n));
|
||||
};
|
||||
constructor.prototype.eatBits = function(n) {
|
||||
if ((this.inputBits -= n) < 0)
|
||||
this.inputBits = 0;
|
||||
}
|
||||
|
||||
return constructor;
|
||||
})();
|
||||
|
||||
var Name = (function() {
|
||||
function constructor(name) {
|
||||
this.name = name;
|
||||
@ -1508,7 +2486,7 @@ var Parser = (function() {
|
||||
return new Ascii85Stream(stream);
|
||||
} else if (name == "CCITTFaxDecode") {
|
||||
TODO("implement fax stream");
|
||||
return new FakeStream(stream);
|
||||
return new CCITTFaxStream(stream, params);
|
||||
} else {
|
||||
error("filter '" + name + "' not supported yet");
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user