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zint_dmatrix.pas
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zint_dmatrix.pas
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unit zint_dmatrix;
{
Based on Zint (done by Robin Stuart and the Zint team)
http://github.com/zint/zint
Translation by TheUnknownOnes
http://theunknownones.net
License: Apache License 2.0
Status:
3432bc9aff311f2aea40f0e9883abfe6564c080b complete
}
{$IFDEF FPC}
{$mode objfpc}{$H+}
{$ENDIF}
interface
uses
zint;
function dmatrix(symbol : zint_symbol; source : TArrayOfByte; _length : Integer) : Integer;
{fs 02/04/2018 added DMRE sizes}
const
NbOfSymbols = 39;
implementation
uses
SysUtils, Math, zint_reedsol, zint_common;
const
MAXBARCODE = 3116;
DM_NULL = 0;
DM_ASCII = 1;
DM_C40 = 2;
DM_TEXT = 3;
DM_X12 = 4;
DM_EDIFACT = 5;
DM_BASE256 = 6;
c40_shift : array[0..127] of Integer = (
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,
0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 2, 2, 2, 2, 2, 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,
2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 );
c40_value : array[0..127] of Integer = (
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
3,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,4,5,6,7,8,9,10,11,12,13,
15,16,17,18,19,20,21,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,
22,23,24,25,26,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 );
text_shift : array[0..127] of Integer = (
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,
0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
2, 2, 2, 2, 2, 3, 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, 3, 3, 3, 3, 3 );
text_value : array[0..127] of Integer = (
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
3,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,4,5,6,7,8,9,10,11,12,13,
15,16,17,18,19,20,21,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,
22,23,24,25,26,0,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,27,28,29,30,31 );
intsymbol : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 0,1,3,5,7,8,10,12,13,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,2,4,6,9,11,14 );
0, { 1: 10x10 , 3} 1, { 2: 12x12 , 5} 3, { 3: 14x14 , 8} 5, { 4: 16x16 , 12}
7, { 5: 18x18 , 18} 9, { 6: 20x20 , 22} 12, { 7: 22x22 , 30} 14, { 8: 24x24 , 36}
16, { 9: 26x26 , 44} 18, { 10: 32x32 , 62} 22, { 11: 36x36 , 86} 25, { 12: 40x40 ,114}
27, { 13: 44x44 ,144} 28, { 14: 48x48 ,174} 29, { 15: 52x52 ,204} 30, { 16: 64x64 ,280}
31, { 17: 72x72 ,368} 32, { 18: 80x80 ,456} 33, { 19: 88x88 ,576} 34, { 20: 96x96 ,696}
35, { 21:104x104,816} 36, { 22:120x120,1050}37, { 23:132x132,1304}38, { 24:144x144,1558}
2, { 25: 8x18 , 5} 4, { 26: 8x32 , 10} 6, { 27: 12x26 , 16} 10, { 28: 12x36 , 22}
13, { 29: 16x36 , 32} 17, { 30: 16x48 , 49} 8, { 31: 8x48 , 18} 11, { 32: 8x64 , 24}
15, { 33: 12x64 , 43} 19, { 34: 16x64 , 62} 21, { 35: 24x48 , 80} 24, { 36: 24x64 ,108}
20, { 37: 26x40 , 70} 23, { 38: 26x48 , 90} 26 { 39: 26x64 ,118}
);
{fs 02/04/2018 Is the current code a DMRE code ?
This is the case, if intsymbol index >= 30 }
isDMRE : array[0..NbOfSymbols - 1] of Boolean = (
{ 0} False, { 10x10 ,3 } False, { 12x12 , 5 } False, { 8x18 , 5 } False, { 14x14 , 8 }
{ 4} False, { 8x32 ,10 } False, { 16x16 ,12 } False, { 12x26 ,16 } False, { 18x18 ,18 }
{ 8} True, { 8x48 ,18 } False, { 20x20 ,22 } False, { 12x36 ,22 } True, { 8x64 ,24 }
{12} False, { 22x22 ,30 } False, { 16x36 ,32 } False, { 24x24 ,36 } True, { 12x64 ,43 }
{16} False, { 26x26 ,44 } False, { 16x48 ,49 } False, { 32x32 ,62 } True, { 16x64 ,62 }
{20} True, { 26x40 , 70} True, { 24x48 ,80 } False, { 36x36 ,86 } True, { 26x48 ,90 }
{24} True, { 24x64 ,108} False, { 40x40 ,114} True, { 26x64 ,118} False, { 44x44 ,144}
{28} False, { 48x48 ,174 } False, { 52x52,204 } False, { 64x64,280 } False, { 72x72,368 }
{32} False, { 80x80 ,456 } False, { 88x88,576 } False, { 96x96,696 } False, {104x104,816}
{36} False, {120x120 ,1050} False, {132x132,1304}False {144x144,1558}
);
{fs 02/04/2018 Is the current code a rectangle code ?
This is the case, if intsymbol index 25 >= < 30 }
isRectangle : array[0..NbOfSymbols - 1] of Boolean = (
{ 0} False, { 10x10 ,3 } False, { 12x12 , 5 } True, { 8x18 , 5 } False, { 14x14 , 8 }
{ 4} True, { 8x32 ,10 } False, { 16x16 ,12 } True, { 12x26 ,16 } False, { 18x18 ,18 }
{ 8} False, { 8x48 ,18 } False, { 20x20 ,22 } True, { 12x36 ,22 } False, { 8x64 ,24 }
{12} False, { 22x22 ,30 } True, { 16x36 ,32 } False, { 24x24 ,36 } False, { 12x64 ,43 }
{16} False, { 26x26 ,44 } True, { 16x48 ,49 } False, { 32x32 ,62 } False, { 16x64 ,62 }
{20} False, { 26x40 , 70} False, { 24x48 ,80 } False, { 36x36 ,86 } False, { 26x48 ,90 }
{24} False, { 24x64 ,108} False, { 40x40 ,114} False, { 26x64 ,118} False, { 44x44 ,144}
{28} False, { 48x48 ,174 } False, { 52x52,204 } False, { 64x64,280 } False, { 72x72,368 }
{32} False, { 80x80 ,456 } False, { 88x88,576 } False, { 96x96,696 } False, {104x104,816}
{36} False, {120x120 ,1050} False, {132x132,1304}False {144x144,1558}
);
matrixH : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 10, 12, 8, 14, 8, 16, 12, 18, 20, 12, 22, 16, 24, 26, 16, 32, 36, 40, 44, 48,
// 52, 64, 72, 80, 88, 96, 104, 120, 132, 144 );
{ 0} 10, { 10x10 , 3 } 12, { 12x12 , 5 } 8, { 8x18 , 5 } 14, { 14x14 , 8 }
{ 4} 8, { 8x32 ,10 } 16, { 16x16 ,12 } 12, { 12x26 ,16 } 18, { 18x18 ,18 }
{ 8} 8, { 8x48 ,18 } 20, { 20x20 ,22 } 12, { 12x36 ,22 } 8, { 8x64 ,24 }
{12} 22, { 22x22 ,30 } 16, { 16x36 ,32 } 24, { 24x24 ,36 } 12, { 12x64 ,43 }
{16} 26, { 26x26 ,44 } 16, { 16x48 ,49 } 32, { 32x32 ,62 } 16, { 16x64 ,62 }
{20} 26, { 26x40 , 70} 24, { 24x48 ,80 } 36, { 36x36 ,86 } 26, { 26x48 ,90 }
{24} 24, { 24x64 ,108} 40, { 40x40 ,114} 26, { 26x64 ,118} 44, { 44x44 ,144}
{28} 48, { 48x48,174 } 52, { 52x52,204 } 64, { 64x64,280 } 72, { 72x72,368 }
{32} 80, { 80x80,456 } 88, { 88x88,576 } 96, { 96x96,696 } 104, {104x104,816}
{36} 120, {120x120,1050} 132,{132x132,1304}144 {144x144,1558}
);
matrixW : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 10, 12, 18, 14, 32, 16, 26, 18, 20, 36, 22, 36, 24, 26, 48, 32, 36, 40, 44,
// 48, 52, 64, 72, 80, 88, 96, 104, 120, 132, 144 );
{ 0} 10, { 10x10 } 12, { 12x12 } 18, { 8x18 } 14, { 14x14 }
{ 4} 32, { 8x32 } 16, { 16x16 } 26, { 12x26 } 18, { 18x18 }
{ 8} 48, { 8x48 } 20, { 20x20 } 36, { 12x36 } 64, { 8x64 }
{12} 22, { 22x22 } 36, { 16x36 } 24, { 24x24 } 64, { 12x64 }
{16} 26, { 26x26 } 48, { 16x48 } 32, { 32x32 } 64, { 16x64 }
{20} 40, { 26x40 } 48, { 24x48 } 36, { 36x36 } 48, { 26x48 }
{24} 64, { 24x64 } 40, { 40x40 } 64, { 26x64 } 44, { 44x44 }
{28} 48, { 48x48 } 52, { 52x52 } 64, { 64x64 } 72, { 72x72 }
{32} 80, { 80x80 } 88, { 88x88 } 96, { 96x96 } 104,{104x104}
{36} 120,{120x120}132, {132x132}144 {144x144}
);
matrixFH : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 10, 12, 8, 14, 8, 16, 12, 18, 20, 12, 22, 16, 24, 26, 16, 16, 18, 20, 22, 24,
// 26, 16, 18, 20, 22, 24, 26, 20, 22, 24 );
{ 0} 10, { 10x10 } 12, { 12x12 } 8, { 8x18 } 14, { 14x14 }
{ 4} 8, { 8x32 } 16, { 16x16 } 12, { 12x26 } 18, { 18x18 }
{ 8} 8, { 8x48 } 20, { 20x20 } 12, { 12x36 } 8, { 8x64 }
{12} 22, { 22x22 } 16, { 16x36 } 24, { 24x24 } 12, { 12x64 }
{16} 26, { 26x26 } 16, { 16x48 } 16, { 32x32 } 16, { 16x64 }
{20} 26, { 26x40 } 24, { 24x48 } 18, { 36x36 } 26, { 26x48 }
{24} 24, { 24x64 } 20, { 40x40 } 26, { 26x64 } 22, { 44x44 }
{28} 24, { 48x48 } 26, { 52x52 } 16, { 64x64 } 18, { 72x72 }
{32} 20, { 80x80 } 22, { 88x88 } 24, { 96x96 } 26, {104x104}
{36} 20, {120x120} 22, {132x132} 24 {144x144}
);
matrixFW : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 10, 12, 18, 14, 16, 16, 26, 18, 20, 18, 22, 18, 24, 26, 24, 16, 18, 20, 22,
// 24, 26, 16, 18, 20, 22, 24, 26, 20, 22, 24 );
{ 0} 10, { 10x10 } 12, { 12x12 } 18, { 8x18 } 14, { 14x14 }
{ 4} 16, { 8x32 } 16, { 16x16 } 26, { 12x26 } 18, { 18x18 }
{ 8} 24, { 8x48 } 20, { 20x20 } 18, { 12x36 } 16, { 8x64 }
{12} 22, { 22x22 } 18, { 16x36 } 24, { 24x24 } 16, { 12x64 }
{16} 26, { 26x26 } 24, { 16x48 } 16, { 32x32 } 16, { 16x64 }
{20} 20, { 26x40 } 24, { 24x48 } 18, { 36x36 } 24, { 26x48 }
{24} 16, { 24x64 } 20, { 40x40 } 16, { 26x64 } 22, { 44x44 }
{28} 24, { 48x48 } 26, { 52x52 } 16, { 64x64 } 18, { 72x72 }
{32} 20, { 80x80 } 22, { 88x88 } 24, { 96x96 } 26, {104x104}
{36} 20, {120x120} 22, {132x132} 24 {144x144}
);
matrixbytes : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 3, 5, 5, 8, 10, 12, 16, 18, 22, 22, 30, 32, 36, 44, 49, 62, 86, 114, 144,
// 174, 204, 280, 368, 456, 576, 696, 816, 1050, 1304, 1558 );
{ 0} 3, { 10x10 } 5, { 12x12 } 5, { 8x18 } 8, { 14x14 }
{ 4} 10, { 8x32 } 12, { 16x16 } 16, { 12x26 } 18, { 18x18 }
{ 8} 18, { 8x48 } 22, { 20x20 } 22, { 12x36 } 24, { 8x64 }
{12} 30, { 22x22 } 32, { 16x36 } 36, { 24x24 } 43, { 12x64 }
{16} 44, { 26x26 } 49, { 16x48 } 62, { 32x32 } 62, { 16x64 }
{20} 70, { 26x40 } 80, { 24x48 } 86, { 36x36 } 90, { 26x48 }
{24} 108, { 24x64 } 114, { 40x40 } 118, { 26x64 } 144, { 44x44 }
{28} 174, { 48x48 } 204, { 52x52 } 280, { 64x64 } 368, { 72x72 }
{32} 456, { 80x80 } 576, { 88x88 } 696, { 96x96 } 816, {104x104}
{36}1050, {120x120}1304, {132x132}1558 {144x144}
);
// Total Data Codewords
matrixdatablock : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 3, 5, 5, 8, 10, 12, 16, 18, 22, 22, 30, 32, 36, 44, 49, 62, 86, 114, 144,
// 174, 102, 140, 92, 114, 144, 174, 136, 175, 163, 156 );
{ 0} 3, { 10x10 } 5, { 12x12 } 5, { 8x18 } 8, { 14x14 }
{ 4} 10, { 8x32 } 12, { 16x16 } 16, { 12x26 } 18, { 18x18 }
{ 8} 18, { 8x48 } 22, { 20x20 } 22, { 12x36 } 24, { 8x64 }
{12} 30, { 22x22 } 32, { 16x36 } 36, { 24x24 } 43, { 12x64 }
{16} 44, { 26x26 } 49, { 16x48 } 62, { 32x32 } 62, { 16x64 }
{20} 70, { 26x40 } 80, { 24x48 } 86, { 36x36 } 90, { 26x48 }
{24} 108, { 24x64 } 114, { 40x40 } 118, { 26x64 } 144, { 44x44 }
{28} 174, { 48x48 } 102, { 52x52 } 140, { 64x64 } 92, { 72x72 }
{32} 114, { 80x80 } 144, { 88x88 } 174, { 96x96 } 136, {104x104}
{36} 175, {120x120} 163, {132x132} 156 { 144x144}
);
matrixrsblock : array[0..NbOfSymbols - 1] of NativeInt = (
{fs 02/04/2018 added DMRE sizes and adjusted against the C file}
// 5, 7, 7, 10, 11, 12, 14, 14, 18, 18, 20, 24, 24, 28, 28, 36, 42, 48, 56, 68,
// 42, 56, 36, 48, 56, 68, 56, 68, 62, 62 );
{ 0} 5, { 10x10 } 7, { 12x12 } 7, { 8x18 } 10, { 14x14 }
{ 4} 11, { 8x32 } 12, { 16x16 } 14, { 12x26 } 14, { 18x18 }
{ 8} 15, { 8x48 } 18, { 20x20 } 18, { 12x36 } 18, { 8x64 }
{12} 20, { 22x22 } 24, { 16x36 } 24, { 24x24 } 27, { 12x64 }
{16} 28, { 26x26 } 28, { 16x48 } 36, { 32x32 } 36, { 16x64 }
{20} 38, { 26x40 } 41, { 24x48 } 42, { 36x36 } 42, { 26x48 }
{24} 46, { 24x64 } 48, { 40x40 } 50, { 26x64 } 56, { 44x44 }
{28} 68, { 48x48 } 42, { 52x52 } 56, { 64x64 } 36, { 72x72 }
{32} 48, { 80x80 } 56, { 88x88 } 68, { 96x96 } 56, {104x104}
{36} 68, {120x120} 62, {132x132} 62 {144x144}
);
{$UNDEF RANGEON} {disable possible /d switch}
{$IFOPT R+}{$DEFINE RANGEON}{$ENDIF} {save initial switch state}
{$R-}
procedure ecc200placementbit(var _array : TArrayOfInteger; NR : Integer; NC : Integer; r : Integer; c : Integer; p : Integer; b : Byte);
begin
if (r < 0) then
begin
Inc(r, NR);
Inc(c, 4 - ((NR + 4) mod 8));
end;
if (c < 0) then
begin
Inc(c, NC);
Inc(r, 4 - ((NC + 4) mod 8));
end;
// Necessary for 26x32,26x40,26x48,36x120,36x144,72x120,72x144
if (r >= NR) then
Dec(r, NR);
// _array[r * NC + c] := (p shl 3) + Ord(b);
_array[r * NC + c] := (p shl 3) + b;
end;
{$IFDEF RANGEON} {$R+} {$ENDIF}
procedure ecc200placementblock(var _array : TArrayOfInteger; NR : Integer; NC : Integer; r : Integer; c : Integer; p : Integer);
begin
ecc200placementbit(_array, NR, NC, r - 2, c - 2, p, 7);
ecc200placementbit(_array, NR, NC, r - 2, c - 1, p, 6);
ecc200placementbit(_array, NR, NC, r - 1, c - 2, p, 5);
ecc200placementbit(_array, NR, NC, r - 1, c - 1, p, 4);
ecc200placementbit(_array, NR, NC, r - 1, c - 0, p, 3);
ecc200placementbit(_array, NR, NC, r - 0, c - 2, p, 2);
ecc200placementbit(_array, NR, NC, r - 0, c - 1, p, 1);
ecc200placementbit(_array, NR, NC, r - 0, c - 0, p, 0);
end;
procedure ecc200placementcornerA(var _array : TArrayOfInteger; NR : Integer; NC : Integer; p : Integer);
begin
ecc200placementbit(_array, NR, NC, NR - 1, 0, p, 7);
ecc200placementbit(_array, NR, NC, NR - 1, 1, p, 6);
ecc200placementbit(_array, NR, NC, NR - 1, 2, p, 5);
ecc200placementbit(_array, NR, NC, 0, NC - 2, p, 4);
ecc200placementbit(_array, NR, NC, 0, NC - 1, p, 3);
ecc200placementbit(_array, NR, NC, 1, NC - 1, p, 2);
ecc200placementbit(_array, NR, NC, 2, NC - 1, p, 1);
ecc200placementbit(_array, NR, NC, 3, NC - 1, p, 0);
end;
procedure ecc200placementcornerB(var _array : TArrayOfInteger; NR : Integer; NC : Integer; p : Integer);
begin
ecc200placementbit(_array, NR, NC, NR - 3, 0, p, 7);
ecc200placementbit(_array, NR, NC, NR - 2, 0, p, 6);
ecc200placementbit(_array, NR, NC, NR - 1, 0, p, 5);
ecc200placementbit(_array, NR, NC, 0, NC - 4, p, 4);
ecc200placementbit(_array, NR, NC, 0, NC - 3, p, 3);
ecc200placementbit(_array, NR, NC, 0, NC - 2, p, 2);
ecc200placementbit(_array, NR, NC, 0, NC - 1, p, 1);
ecc200placementbit(_array, NR, NC, 1, NC - 1, p, 0);
end;
procedure ecc200placementcornerC(var _array : TArrayOfInteger; NR : Integer; NC : Integer; p : Integer);
begin
ecc200placementbit(_array, NR, NC, NR - 3, 0, p, 7);
ecc200placementbit(_array, NR, NC, NR - 2, 0, p, 6);
ecc200placementbit(_array, NR, NC, NR - 1, 0, p, 5);
ecc200placementbit(_array, NR, NC, 0, NC - 2, p, 4);
ecc200placementbit(_array, NR, NC, 0, NC - 1, p, 3);
ecc200placementbit(_array, NR, NC, 1, NC - 1, p, 2);
ecc200placementbit(_array, NR, NC, 2, NC - 1, p, 1);
ecc200placementbit(_array, NR, NC, 3, NC - 1, p, 0);
end;
procedure ecc200placementcornerD(var _array : TArrayOfInteger; NR : Integer; NC : Integer; p : Integer);
begin
ecc200placementbit(_array, NR, NC, NR - 1, 0, p, 7);
ecc200placementbit(_array, NR, NC, NR - 1, NC - 1, p, 6);
ecc200placementbit(_array, NR, NC, 0, NC - 3, p, 5);
ecc200placementbit(_array, NR, NC, 0, NC - 2, p, 4);
ecc200placementbit(_array, NR, NC, 0, NC - 1, p, 3);
ecc200placementbit(_array, NR, NC, 1, NC - 3, p, 2);
ecc200placementbit(_array, NR, NC, 1, NC - 2, p, 1);
ecc200placementbit(_array, NR, NC, 1, NC - 1, p, 0);
end;
// Annex M placement alorithm main function
procedure ecc200placement(var _array : TArrayOfInteger; NR : Integer; NC : Integer);
var
r, c, p : Integer;
begin
// invalidate
for r := 0 to NR - 1 do
for c := 0 to NC - 1 do
_array[r * NC + c] := 0;
// start
p := 1;
r := 4;
c := 0;
repeat
// check corner
if (r = NR) and (c = 0) then
begin ecc200placementcornerA(_array, NR, NC, p); Inc(p); end;
if (r = NR - 2) and (c = 0) and ((NC mod 4) <> 0) then
begin ecc200placementcornerB(_array, NR, NC, p); Inc(p); end;
if (r = NR - 2) and (c = 0) and ((NC mod 8) = 4) then
begin ecc200placementcornerC(_array, NR, NC, p); Inc(p); end;
if (r = NR + 4) and (c = 2) and ((NC mod 8) = 0) then
begin ecc200placementcornerD(_array, NR, NC, p); Inc(p); end;
// up/right
repeat
if (r < NR) and (c >= 0) and (_array[r * NC + c] = 0) then
begin ecc200placementblock(_array, NR, NC, r, c, p); Inc(p); end;
Dec(r, 2);
Inc(c, 2);
until not ((r >= 0) and (c < NC));
Inc(r);
Inc(c, 3);
// down/left
repeat
if (r >= 0) and (c < NC) and (_array[r * NC + c] = 0) then
begin ecc200placementblock(_array, NR, NC, r, c, p); Inc(p); end;
Inc(r, 2);
Dec(c, 2);
until not ((r < NR) and (c >= 0));
Inc(r, 3);
Inc(c);
until not ((r < NR) or (c < NC));
// unfilled corner
if (_array[NR * NC - 1] = 0) then
begin
_array[NR * NC - 1] := 1; _array[NR * NC - NC - 2] := 1;
end;
end;
// calculate and append ecc code, and if necessary interleave
procedure ecc200(var binary : TArrayOfByte; bytes : Integer; datablock : Integer; rsblock : Integer; skew : Integer);
var
blocks, b : Integer;
n, p : Integer;
buf, ecc : TArrayOfByte;
RSGlobals : TRSGlobals;
begin
SetLength(buf, 256);
SetLength(ecc, 256);
blocks := (bytes + 2) div datablock;
rs_init_gf($12d, RSGlobals);
rs_init_code(rsblock, 1, RSGlobals);
for b := 0 to blocks - 1 do
begin
p := 0;
n := b;
while n < bytes do
begin
buf[p] := binary[n];
Inc(p);
Inc(n, blocks);
end;
rs_encode(p, buf, ecc, RSGlobals);
p := rsblock - 1; // comes back reversed
n := b;
while n < rsblock * blocks do
begin
if (skew <> 0) then
begin
{ Rotate ecc data to make 144x144 size symbols acceptable }
{ See http://groups.google.com/group/postscriptbarcode/msg/5ae8fda7757477da }
if (b < 8) then
begin
binary[bytes + n + 2] := ecc[p];
Dec(p);
end
else
begin
binary[bytes + n - 8] := ecc[p];
Dec(p);
end;
end
else
begin
binary[bytes + n] := ecc[p];
Dec(p);
end;
Inc(n, blocks);
end;
end;
rs_free(RSGlobals);
end;
function isx12(const source : Byte) : Boolean;
begin
if (source = 13) then begin result := True; exit; end;
if (source = 42) then begin result := True; exit; end;
if (source = 62) then begin result := True; exit; end;
if (source = 32) then begin result := True; exit; end;
if ((source >= ord('0')) and (source <= ord('9'))) then begin result := True; exit; end;
if ((source >= ord('A')) and (source <= ord('Z'))) then begin result := True; exit; end;
result := False;
end;
procedure dminsert(var binary_string : TArrayOfChar; posn : Integer; newbit : Char);
{ Insert a character into the middle of a string at position posn }
var
i, _end : Integer;
begin
SetLength(binary_string, Length(binary_string) + 1);
_end := strlen(binary_string);
for i := _end downto posn + 1 do
binary_string[i] := binary_string[i - 1];
binary_string[posn] := newbit;
end;
procedure insert_value(var binary_stream : TArrayOfByte; posn : Integer; streamlen : Integer; newbit : Byte);
var
i : Integer;
begin
for i := streamlen downto posn + 1 do
binary_stream[i] := binary_stream[i - 1];
binary_stream[posn] := newbit;
end;
function p_r_6_2_1(var InputData: TArrayOfByte; const Position, Sourcelen: NativeInt): NativeInt;
var
i: NativeInt;
NonX12Position: NativeInt;
SpecialX12Position: NativeInt;
begin
{* Annex P section (r)(6)(ii)(I)
"If one of the three X12 terminator/separator characters first
occurs in the yet to be processed data before a non-X12 character..."
*}
NonX12Position := 0;
SpecialX12Position := 0;
Result := 0;
for I := Position to SourceLen - 1 do begin
if (nonX12Position = 0) and (not isX12(inputData[i])) then
nonX12Position := i;
if (specialX12Position = 0) and
((inputData[i] = 13) or
(inputData[i] = Ord('*')) or
(inputData[i] = Ord('>'))) then
specialX12Position := i;
if (nonX12Position <> 0) and (specialX12Position <> 0) and (specialX12Position < nonX12Position) then
Result := 1;
end;
end;
//function look_ahead_test(source : TArrayOfByte; sourcelen : Integer; position : Integer; current_mode : Integer; gs1 : Integer) : Integer;
//{ A custom version of the 'look ahead test' from Annex P }
//{ This version is deliberately very reluctant to end a data stream with EDIFACT encoding }
//var
// ascii_count, c40_count, text_count, x12_count, edf_count, b256_count, best_count : Single;
// sp, done, best_scheme : Integer;
// reduced_char : Byte;
//begin
// { step (j) }
// if (current_mode = DM_ASCII) then
// begin
// ascii_count := 0.0;
// c40_count := 1.0;
// text_count := 1.0;
// x12_count := 1.0;
// edf_count := 1.0;
// b256_count := 1.25;
// end
// else
// begin
// ascii_count := 1.0;
// c40_count := 2.0;
// text_count := 2.0;
// x12_count := 2.0;
// edf_count := 2.0;
// b256_count := 2.25;
// end;
//
// case current_mode of
// DM_C40: c40_count := 0.0;
// DM_TEXT: text_count := 0.0;
// DM_X12: x12_count := 0.0;
// DM_EDIFACT: edf_count := 0.0;
// DM_BASE256: b256_count := 0.0;
// end;
//
// sp := position;
// while (sp <= sourcelen) and (sp <= (position + 8)) do
// begin
// if (source[sp] <= 127) then reduced_char := source[sp] else reduced_char := Ord(source[sp]) - 127;
//
// if ((source[sp] >= ord('0')) and (source[sp] <= Ord('9'))) then ascii_count := ascii_count + 0.5 else ascii_count := ascii_count + 1.0;
// if (source[sp] > 127) then ascii_count := ascii_count+ 1.0;
//
// done := 0;
// if (reduced_char = ord(' ')) then begin c40_count := c40_count+ (2.0 / 3.0); done := 1; end;
// if ((reduced_char >= ord('0')) and (reduced_char <= ord('9'))) then begin c40_count := c40_count + (2.0 / 3.0); done := 1; end;
// if ((reduced_char >= ord('A')) and (reduced_char <= ord('Z'))) then begin c40_count := c40_count + (2.0 / 3.0); done := 1; end;
// if (source[sp] > 127) then c40_count := c40_count + (4.0 / 3.0);
// if (done = 0) then c40_count := c40_count + (4.0 / 3.0);
//
// done := 0;
// if (reduced_char = ord(' ')) then begin text_count := text_count + (2.0 / 3.0); done := 1; end;
// if ((reduced_char >= ord('0')) and (reduced_char <= ord('9'))) then begin text_count := text_count + (2.0 / 3.0); done := 1; end;
// if ((reduced_char >= ord('a')) and (reduced_char <= ord('z'))) then begin text_count := text_count + (2.0 / 3.0); done := 1; end;
// if (source[sp] > 127) then text_count := text_count + (4.0 / 3.0);
// if (done = 0) then text_count := text_count + (4.0 / 3.0);
//
// if (isx12(source[sp]) <> 0) then x12_count := x12_count + (2.0 / 3.0) else x12_count := x12_count + 4.0;
//
// { step (p) }
// done := 0;
// if ((source[sp] >= ord(' ')) and (source[sp] <= ord('^'))) then edf_count := edf_count + (3.0 / 4.0) else edf_count := edf_count + 6.0;
// if ((gs1 <> 0) and (source[sp] = ord('['))) then edf_count := edf_count + 6.0;
// if (sp >= (sourcelen - 5)) then edf_count := edf_count + 6.0; { MMmmm fudge! }
//
// { step (q) }
// if ((gs1 <> 0) and (source[sp] = ord('['))) then b256_count := b256_count + 4.0 else b256_count := b256_count + 1.0;
//
// Inc(sp);
// end;
//
// best_count := ascii_count;
// best_scheme := DM_ASCII;
//
// if (b256_count <= best_count) then
// begin
// best_count := b256_count;
// best_scheme := DM_BASE256;
// end;
//
// if (edf_count <= best_count) then
// begin
// best_count := edf_count;
// best_scheme := DM_EDIFACT;
// end;
//
// if (text_count <= best_count) then
// begin
// best_count := text_count;
// best_scheme := DM_TEXT;
// end;
//
// if (x12_count <= best_count) then
// begin
// best_count := x12_count;
// best_scheme := DM_X12;
// end;
//
// if (c40_count <= best_count) then
// begin
// best_count := c40_count;
// best_scheme := DM_C40;
// end;
//
// result := best_scheme;
//end;
{ A custom version of the 'look ahead test' from Annex P }
function look_ahead_test(var InputData : TArrayOfByte; sourcelen : Integer; position : Integer; current_mode : Integer; gs1 : Integer): Integer;
var
ascii_count,
c40_count,
text_count,
x12_count,
edf_count,
b256_count,
best_count: Double;
best_scheme : integer;
sp : integer;
stiction: Double;
begin
stiction := 1.0 / 24.0 { smallest change to act on, to get around floating point inaccuracies } ;
best_scheme := DM_NULL;
{ step (j) }
if current_mode = DM_ASCII then begin
ascii_count := 0.0;
c40_count := 1.0;
text_count := 1.0;
x12_count := 1.0;
edf_count := 1.0;
b256_count := 1.25;
end
else begin
ascii_count := 1.0;
c40_count := 2.0;
text_count := 2.0;
x12_count := 2.0;
edf_count := 2.0;
b256_count := 2.25;
end;
case current_mode of
DM_C40: c40_count := 0.0;
DM_TEXT: text_count := 0.0;
DM_X12: x12_count := 0.0;
DM_EDIFACT: edf_count := 0.0;
DM_BASE256: b256_count := 0.0;
end;
sp := position;
Repeat
if sp = sourcelen then begin
{ At the end of data ... step (k) }
ascii_count := ceil(ascii_count);
b256_count := ceil(b256_count);
edf_count := ceil(edf_count);
text_count := ceil(text_count);
x12_count := ceil(x12_count);
c40_count := ceil(c40_count);
best_count := c40_count;
best_scheme := DM_C40; // (k)(7)
if x12_count < (best_count - stiction) then begin
best_count := x12_count;
best_scheme := DM_X12; // (k)(6)
end;
if text_count < (best_count - stiction) then begin
best_count := text_count;
best_scheme := DM_TEXT; // (k)(5)
end;
if edf_count < (best_count - stiction) then begin
best_count := edf_count;
best_scheme := DM_EDIFACT; // (k)(4)
end;
if b256_count < (best_count - stiction) then begin
best_count := b256_count;
best_scheme := DM_BASE256; // (k)(3)
end;
if ascii_count <= (best_count + stiction) then begin
best_scheme := DM_ASCII; // (k)(2)
end;
end
else begin
{ ascii ... step (l) }
if (inputData[sp] >= Ord('0')) and (inputData[sp] <= Ord('9')) then
ascii_count := ascii_count + 0.5
else begin
if inputData[sp] > 127 then
ascii_count := ceil(ascii_count) + 2.0 // (l)(2)
else
ascii_count := ceil(ascii_count) + 1.0; // (l)(3)
end;
{ c40 ... step (m) }
if (inputData[sp] = 32 {' '}) or
(((inputData[sp] >= Ord('0')) and (inputData[sp] <= Ord('9'))) or
((inputData[sp] >= Ord('A')) and (inputData[sp] <= Ord('Z')))) then
c40_count := c40_count + (2.0 / 3.0)
else begin
if inputData[sp] > 127 then
c40_count := c40_count + (8.0 / 3.0)
else
c40_count := c40_count + (4.0 / 3.0)
end;
{ text ... step (n) }
if (inputData[sp] = 32 {' '}) or
(((inputData[sp] >= Ord('0')) and (inputData[sp] <= Ord('9'))) or
((inputData[sp] >= Ord('a')) and (inputData[sp] <= Ord('z')))) then
text_count := text_count + (2.0 / 3.0)
else begin
if inputData[sp] > 127 then
text_count := text_count + (8.0 / 3.0)
else
text_count := text_count + (4.0 / 3.0);
end;
{ x12 ... step (o) }
if isX12(inputData[sp]) then
x12_count := x12_count + (2.0 / 3.0)
else begin
if inputData[sp] > 127 then
x12_count := x12_count + (13.0 / 3.0)
else
x12_count := x12_count + (10.0 / 3.0);
end;
{ edifact ... step (p) }
if (inputData[sp] >= 32 {' '}) and (inputData[sp] <= Ord('^')) then
edf_count := edf_count + (3.0 / 4.0)
else begin
if inputData[sp] > 127 then
edf_count := edf_count + 17.0 // (p)(2) > Value changed from ISO
else
edf_count := edf_count + 13.0; // (p)(3) > Value changed from ISO
end;
if (gs1 = 1) and (inputData[sp] = Ord('[')) then
edf_count := edf_count + 13.0; // > Value changed from ISO
{ base 256 ... step (q) }
if (gs1 = 1) and (inputData[sp] = Ord('[')) then
b256_count := b256_count + 4.0 // (q)(1)
else
b256_count := b256_count + 1.0; // (q)(2)
end;
if sp > (position + 3) then begin
{ 4 data characters processed ... step (r) }
{ step (r)(6) }
if (c40_count + 1.0 < ascii_count - stiction) and
(c40_count + 1.0 < b256_count - stiction) and
(c40_count + 1.0 < edf_count - stiction) and
(c40_count + 1.0 < text_count - stiction) then begin
if c40_count < (x12_count - stiction) then
best_scheme := DM_C40;
if (c40_count >= x12_count - stiction)
and (c40_count <= x12_count + stiction) then begin
if p_r_6_2_1(inputData, sp, sourcelen) = 1 then
// Test (r)(6)(ii)(i)
best_scheme := DM_X12
else
best_scheme := DM_C40;
end;
end;
{ step (r)(5) }
if (x12_count + 1.0 < ascii_count - stiction) and
(x12_count + 1.0 < b256_count - stiction) and
(x12_count + 1.0 < edf_count - stiction) and
(x12_count + 1.0 < text_count - stiction) and
(x12_count + 1.0 < c40_count - stiction) then
best_scheme := DM_X12;
{ step (r)(4) }
if (text_count + 1.0 < ascii_count - stiction) and
(text_count + 1.0 < b256_count - stiction) and
(text_count + 1.0 < edf_count - stiction) and
(text_count + 1.0 < x12_count - stiction) and
(text_count + 1.0 < c40_count - stiction) then
best_scheme := DM_TEXT;
{ step (r)(3) }
if (edf_count + 1.0 < ascii_count - stiction) and
(edf_count + 1.0 < b256_count - stiction) and
(edf_count + 1.0 < text_count - stiction) and
(edf_count + 1.0 < x12_count - stiction) and
(edf_count + 1.0 < c40_count - stiction) then
best_scheme := DM_EDIFACT;
{ step (r)(2) }
if (b256_count + 1.0 <= ascii_count + stiction) or
(b256_count + 1.0 < edf_count - stiction) and
(b256_count + 1.0 < text_count - stiction) and
(b256_count + 1.0 < x12_count - stiction) and
(b256_count + 1.0 < c40_count - stiction) then
best_scheme := DM_BASE256;
{ step (r)(1) }
if (ascii_count + 1.0 <= b256_count + stiction) and
(ascii_count + 1.0 <= edf_count + stiction) and
(ascii_count + 1.0 <= text_count + stiction) and
(ascii_count + 1.0 <= x12_count + stiction) and
(ascii_count + 1.0 <= c40_count + stiction) then
best_scheme := DM_ASCII;
end;
Inc(sp);
Until (best_scheme <> DM_NULL); // step (s)
Result := best_scheme;
end;
function dm200encode(symbol : zint_symbol; source : TArrayOfByte; var target : TArrayOfByte; var last_mode : Integer;
var _length : Integer; process_Buffer: TArrayOfInteger; var process_p: integer) : Integer;
{ Encodes data using ASCII, C40, Text, X12, EDIFACT or Base 256 modes as appropriate }
{ Supports encoding FNC1 in supporting systems }
var
sp, tp, i, gs1 : Integer;
current_mode, next_mode : Integer;
inputlen : Integer;
binary : TArrayOfChar;
shift_set, value : Integer;
iv : Integer;
binary_count : Integer;
prn, temp : Integer;
begin
inputlen := _length;
SetLength(binary, inputlen * 2);
sp := 0;
tp := 0;
FillChar(process_Buffer[0], SizeOf(process_Buffer), 0);
process_p := 0;
strcpy(binary, '');
{ step (a) }
current_mode := DM_ASCII;
next_mode := DM_ASCII;
if ((symbol.input_mode and 7) = GS1_MODE) then begin
if (symbol.output_options and GS1_GS_SEPARATOR <> 0) then
gs1 := 2
else
gs1 := 1;
end
else
gs1 := 0;
// manual GS1 encoding with raw data
if (gs1=0) and (source[0]=232 { FNC1 }) then begin
Inc(sp);
gs1 := 1;
end;
if (gs1 <> 0) then
begin
target[tp] := 232; Inc(tp);
concat(binary, ' ');
end; { FNC1 }
if (symbol.output_options and READER_INIT) <> 0 then
begin
if (gs1 <> 0) then
begin
strcpy(symbol.errtxt, 'Cannot encode in GS1 mode and Reader Initialisation at the same time');
result := ZERROR_INVALID_OPTION; exit;
end
else
begin
target[tp] := 234; Inc(tp); { Reader Programming }
concat(binary, ' ');
end;
end;
if symbol.eci > 0 then begin
{ Encode ECI numbers according to Table 6 }
target[tp] := 241; // ECI Character
Inc(tp);
if symbol.eci <= 126 then begin
target[tp] := symbol.eci + 1;
Inc(tp);
concat(binary, ' ');
end;
if (symbol.eci >= 127) and (symbol.eci <= 16382) then begin
target[tp] := ((symbol.eci - 127) div 254) + 128;
Inc(tp);
target[tp] := ((symbol.eci - 127) mod 254) + 1;
Inc(tp);
concat(binary, ' ');
end;
if symbol.eci >= 16383 then begin
target[tp] := ((symbol.eci - 16383) div 64516) + 192;
Inc(tp);
target[tp] := (((symbol.eci - 16383) div 254) mod 254) + 1;
Inc(tp);
target[tp] := ((symbol.eci - 16383) mod 254) + 1;
Inc(tp);
concat(binary, ' ');
end;
end;
// Check for Macro05/Macro06
// "[)>[RS]05[GS]...[RS][EOT]" -> CW 236
// "[)>[RS]06[GS]...[RS][EOT]" -> CW 237
if (tp = 0) and (sp = 0) and (inputlen >= 9)
and (source[0] = Ord('[')) and (source[1] = Ord(')')) and (source[2] = Ord('>'))
and (source[3] = $1e {RS}) and (source[4] = Ord('0'))
and ((source[5] = Ord('5')) or (source[5] = Ord('6')))
and (source[6] = $1d {GS})
and (source[inputlen - 2] = $1e {RS}) and (source[inputlen - 1] = $4 {EOT}) then begin
// Output macro Codeword
if (source[5] = Ord('5')) then
target[tp] := 236
else
target[tp] := 237;
inc(tp);
concat(binary, ' ');
{* Remove macro characters from input string *}
sp := 7;
Dec(inputlen, 2);
Dec(_length, 2);
end;
while (sp < inputlen) do
begin
current_mode := next_mode;
{ step (b) - ASCII encodation }
if (current_mode = DM_ASCII) then
begin
next_mode := DM_ASCII;
if (((sp + 1) <{=} inputlen) and istwodigits(source, sp)) then
begin
target[tp] := (10 * StrToInt(Chr(source[sp]))) + StrToInt(Chr(source[sp + 1])) + 130;
Inc(tp); concat(binary, ' ');
Inc(sp, 2);
end
else
begin
next_mode := look_ahead_test(source, inputlen, sp, current_mode, gs1);
if (next_mode <> DM_ASCII) then
begin
case next_mode of
DM_C40: begin target[tp] := 230; Inc(tp); concat(binary, ' '); end;
DM_TEXT: begin target[tp] := 239; Inc(tp); concat(binary, ' '); end;
DM_X12: begin target[tp] := 238; Inc(tp); concat(binary, ' '); end;
DM_EDIFACT: begin target[tp] := 240; Inc(tp); concat(binary, ' '); end;
DM_BASE256: begin target[tp] := 231; Inc(tp); concat(binary, ' '); end;
end;
end
else
begin
if (source[sp] > 127) then
begin
target[tp] := 235; { FNC4 }
Inc(tp);
target[tp] := (Ord(source[sp]) - 128) + 1;
Inc(tp); concat(binary, ' ');
end
else
begin
if ((gs1 <> 0) and (source[sp] = ord('['))) then begin
if gs1 = 2 then
target[tp] := 29+1 { GS }
else
target[tp] := 232; { FNC1 }
end
else
target[tp] := Ord(source[sp]) + 1;
Inc(tp);
concat(binary, ' ');
end;
Inc(sp);
end;
end;
end;
{ step (c) C40 encodation }
if (current_mode = DM_C40) then
begin
next_mode := DM_C40;
if (process_p = 0) then
next_mode := look_ahead_test(source, inputlen, sp, current_mode, gs1);
if (next_mode <> DM_C40) then
begin
target[tp] := 254; Inc(tp); concat(binary, ' ');{ Unlatch }
next_mode := DM_ASCII;