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// Upgraded to Delphi 2009: Sebastian Zierer
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(* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TurboPower SysTools
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*
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* The Initial Developer of the Original Code is
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* TurboPower Software
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*
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* Portions created by the Initial Developer are Copyright (C) 1996-2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** *)
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{*********************************************************}
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{* SysTools: StLArr.pas 4.04 *}
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{*********************************************************}
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{* SysTools: Large array classes *}
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{*********************************************************}
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{$I StDefine.inc}
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{Notes:
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- requires a 386 or better processor, even for 16-bit Delphi apps
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- uses the value in the SYSTEM variable HeapAllocFlags when allocating
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memory for the array.
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- changing the size of an array allocates a new array, transfers the
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old data, and then frees the original array.
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- arrays are always indexed from 0 to Count-1.
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- after creating a descendant that knows the type of each element, an
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indexed default property can be used to access array elements in a
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convenient fashion, e.g., A[100] := 6.0;
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- the Get and Put methods don't perform range checking.
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- for 32-bit matrix, Rows*Cols cannot exceed 2**32.
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}
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unit StLArr;
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interface
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uses
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Windows,
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Classes, StConst, StBase;
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type
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TStLArray = class(TStContainer)
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{.Z+}
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protected
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{property instance variables}
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FElSize : Integer; {Size of each array element}
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FElStorable : boolean; {True if elements can be stored directly}
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{private instance variables}
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laData : Pointer; {Pointer to data block}
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{undocumented protected methods}
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procedure ForEachUntypedVar(Action : TIterateUntypedFunc;
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OtherData : pointer);
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override;
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procedure GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
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override;
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procedure SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
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override;
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function StoresUntypedVars : boolean;
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override;
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procedure laSetCount(Elements : LongInt);
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{.Z-}
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public
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constructor Create(Elements : LongInt; ElementSize : Cardinal);
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{-Initialize a large 1D array}
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destructor Destroy; override;
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{-Free a large 1D array}
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procedure LoadFromStream(S : TStream); override;
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{-Load a collection's data from a stream}
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procedure StoreToStream(S : TStream); override;
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{-Write a collection and its data to a stream}
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procedure Assign(Source: TPersistent); override;
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{-Assign another container's contents to this one}
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procedure Clear; override;
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{-Fill the array with zeros}
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procedure Fill(const Value);
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{-Fill array with specified value}
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procedure Put(El : LongInt; const Value);
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{-Set an element}
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procedure Get(El : LongInt; var Value);
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{-Return an element}
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procedure Exchange(El1, El2 : LongInt);
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{-Exchange the specified elements}
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procedure Sort(Compare : TUntypedCompareFunc);
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{-Sort the array using the given comparison function}
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property Count : LongInt
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{-Read or write the number of elements in the array}
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read FCount
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write laSetCount;
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property ElementSize : Integer
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read FElSize;
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property ElementsStorable : boolean
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{-True if elements can be written directly to (or read from) disk}
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read FElStorable write FElStorable;
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end;
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type
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TStLMatrix = class(TStContainer)
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{.Z+}
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protected
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{property instance variables}
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FElSize : Integer; {Size of each array element}
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FCols : Cardinal; {Number of columns}
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FRows : Cardinal; {Number of rows}
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FElStorable : boolean; {True if elements can be stored directly}
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{private instance variables}
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lmData : Pointer; {Pointer to data block}
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lmRowSize : LongInt; {Number of bytes in a row}
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{undocumented protected methods}
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procedure ForEachUntypedVar(Action : TIterateUntypedFunc; OtherData : pointer);
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override;
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procedure GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
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override;
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procedure SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
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override;
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function StoresUntypedVars : boolean;
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override;
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procedure lmSetRows(Rows : Cardinal);
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procedure lmSetCols(Cols : Cardinal);
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{.Z-}
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public
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constructor Create(Rows, Cols, ElementSize : Cardinal);
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{-Initialize a large 2D matrix}
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destructor Destroy; override;
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{-Free a large 2D matrix}
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procedure LoadFromStream(S : TStream); override;
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{-Load a collection's data from a stream}
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procedure StoreToStream(S : TStream); override;
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{-Write a collection and its data to a stream}
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procedure Assign(Source: TPersistent); override;
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{-Assign another container's contents to this one}
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procedure Clear; override;
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{-Fill the matrix with zeros}
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procedure Fill(const Value);
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{-Fill matrix with specified value}
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procedure Put(Row, Col : Cardinal; const Value);
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{-Set an element}
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procedure Get(Row, Col : Cardinal; var Value);
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{-Return an element}
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procedure PutRow(Row : Cardinal; const RowValue);
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{-Set an entire row}
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procedure GetRow(Row : Cardinal; var RowValue);
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{-Return an entire row}
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procedure ExchangeRows(Row1, Row2 : Cardinal);
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{-Exchange the specified rows}
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procedure SortRows(KeyCol : Cardinal; Compare : TUntypedCompareFunc);
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{-Sort the array rows using the given comparison function and
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the elements in the given column}
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property Rows : Cardinal
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{-Read or write the number of rows in the array}
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read FRows
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write lmSetRows;
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property Cols : Cardinal
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{-Read or write the number of columns in the array}
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read FCols
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write lmSetCols;
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property ElementSize : Integer
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read FElSize;
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property ElementsStorable : boolean
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{-True if elements can be written directly to (or read from) disk}
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read FElStorable write FElStorable;
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end;
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{======================================================================}
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implementation
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function AssignArrayData(Container : TStContainer;
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var Data;
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OtherData : Pointer) : Boolean; far;
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var
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OurArray : TStLArray absolute OtherData;
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RD : TAssignRowData absolute Data;
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begin
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OurArray.Put(RD.RowNum, RD.Data);
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Result := true;
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end;
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function AssignMatrixData(Container : TStContainer;
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var Data;
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OtherData : Pointer) : Boolean; far;
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var
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OurMatrix : TStLMatrix absolute OtherData;
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RD : TAssignRowData absolute Data;
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begin
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OurMatrix.PutRow(RD.RowNum, RD.Data);
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Result := true;
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end;
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procedure TStLArray.Assign(Source: TPersistent);
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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{$ENDIF}
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{The only containers that we allow to be assigned to a large array
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are:
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- another SysTools large array (TStLArray)
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- a SysTools large matrix (TStLMatrix) with one column
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- a SysTools virtual matrix (TStVMatrix) with one column}
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if not AssignUntypedVars(Source, AssignArrayData) then
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inherited Assign(Source);
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{$IFDEF ThreadSafe}
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finally
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LeaveCS;
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end;{try..finally}
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{$ENDIF}
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end;
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procedure TStLArray.Clear;
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var
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C : LongInt;
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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{$ENDIF}
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C := FCount;
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HugeFillChar(laData^, C*FElSize, 0);
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{$IFDEF ThreadSafe}
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finally
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LeaveCS;
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end;
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{$ENDIF}
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end;
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procedure TStLArray.ForEachUntypedVar(Action : TIterateUntypedFunc;
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OtherData : pointer);
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var
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FullRow : ^TAssignRowData;
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i : Cardinal;
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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{$ENDIF}
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GetMem(FullRow, sizeof(Cardinal) + ElementSize);
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try
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for i := 0 to pred(Count) do
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begin
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FullRow^.RowNum := i;
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Get(i, FullRow^.Data);
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Action(Self, FullRow^, OtherData);
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end;
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finally
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FreeMem(FullRow, sizeof(Cardinal) + ElementSize);
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end;
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{$IFDEF ThreadSafe}
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finally
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LeaveCS;
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end;
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{$ENDIF}
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end;
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procedure TStLArray.GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
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begin
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RowCount := Count;
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ColCount := 1;
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ElSize := ElementSize;
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end;
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procedure TStLArray.SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
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begin
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if (ColCount <> 1) then
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RaiseContainerError(stscTooManyCols);
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if (LongInt(RowCount) <> Count) or
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(LongInt(ElSize) <> ElementSize) then begin
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HugeFreeMem(laData, FCount*FElSize);
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FCount := RowCount;
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FElSize := ElSize;
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HugeGetMem(laData, RowCount*ElSize);
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Clear;
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end;
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end;
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function TStLArray.StoresUntypedVars : boolean;
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begin
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Result := True;
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end;
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constructor TStLArray.Create(Elements : LongInt; ElementSize : Cardinal);
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begin
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if (Elements <= 0) or (ElementSize = 0) or
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ProductOverflow(Elements, ElementSize) then
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RaiseContainerError(stscBadSize);
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CreateContainer(TStNode, 0);
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FCount := Elements;
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FElSize := ElementSize;
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HugeGetMem(laData, Elements*LongInt(ElementSize));
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Clear;
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end;
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destructor TStLArray.Destroy;
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begin
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HugeFreeMem(laData, FCount*FElSize);
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IncNodeProtection;
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inherited Destroy;
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end;
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procedure TStLArray.Exchange(El1, El2 : LongInt);
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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{$ENDIF}
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{$IFOPT R+}
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if (El1 < 0) or (El1 >= Count) or (El2 < 0) or (El2 >= Count) then
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RaiseContainerError(stscBadIndex);
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{$ENDIF}
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asm
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mov eax,Self
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push ebx
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push esi
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push edi
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mov esi,El1
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mov edi,El2
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mov ecx,TStLArray([eax]).FElSize
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mov edx,TStLArray([eax]).laData
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db $0F,$AF,$F1 {imul esi,ecx, compiler bug workaround}
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add esi,edx
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db $0F,$AF,$F9 {imul edi,ecx, compiler bug workaround}
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add edi,edx
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mov edx,ecx
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shr ecx,2
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jz @2
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@1: mov eax,[esi] {avoid xchg instruction, which is slow}
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mov ebx,[edi]
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mov [esi],ebx
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mov [edi],eax
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add esi,4
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add edi,4
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dec ecx
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jnz @1
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@2: mov ecx,edx
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and ecx,3
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jz @4
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@3: mov al,[esi] {avoid xchg instruction, which is slow}
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mov bl,[edi]
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mov [esi],bl
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mov [edi],al
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inc esi
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inc edi
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dec ecx
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jnz @3
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@4: pop edi
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pop esi
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pop ebx
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end;
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{$IFDEF ThreadSafe}
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finally
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LeaveCS;
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end;
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{$ENDIF}
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end;
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procedure TStLArray.Fill(const Value);
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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{$ENDIF}
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HugeFillStruc(laData^, FCount, Value, FElSize);
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{$IFDEF ThreadSafe}
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finally
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LeaveCS;
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end;
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{$ENDIF}
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end;
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procedure TStLArray.Get(El : LongInt; var Value);
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(* model for code below
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begin
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move((PChar(laData)+El*FElSize)^, Value, FElSize);
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426 |
end;
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*)
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begin
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{$IFDEF ThreadSafe}
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EnterCS;
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try
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432 |
{$ENDIF}
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{$IFOPT R+}
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if (El < 0) or (El >= Count) then
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RaiseContainerError(stscBadIndex);
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436 |
{$ENDIF}
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asm
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438 |
mov eax,Self
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439 |
push esi
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440 |
push edi
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mov edi,Value
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mov ecx,TStLArray([eax]).FElSize
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mov esi,El
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db $0F,$AF,$F1 {imul esi,ecx, compiler bug workaround}
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add esi,TStLArray([eax]).laData
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mov eax,ecx
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shr ecx,2
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rep movsd
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mov ecx,eax
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450 |
and ecx,3
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rep movsb
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452 |
pop edi
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pop esi
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end;
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{$IFDEF ThreadSafe}
|
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finally
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LeaveCS;
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end;
|
459 |
{$ENDIF}
|
460 |
end;
|
461 |
|
462 |
|
463 |
procedure TStLArray.laSetCount(Elements : LongInt);
|
464 |
var
|
465 |
CurSize, NewSize : LongInt;
|
466 |
CurFData : Pointer;
|
467 |
begin
|
468 |
{$IFDEF ThreadSafe}
|
469 |
EnterCS;
|
470 |
try
|
471 |
{$ENDIF}
|
472 |
{validate new size}
|
473 |
if (Elements <= 0) or ProductOverflow(Elements, FElSize) then
|
474 |
RaiseContainerError(stscBadSize);
|
475 |
|
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NewSize := Elements*FElSize;
|
477 |
CurSize := FCount*FElSize;
|
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CurFData := laData;
|
479 |
|
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{allocate data block of new size}
|
481 |
HugeGetMem(laData, NewSize);
|
482 |
|
483 |
FCount := Elements;
|
484 |
|
485 |
{fill extra area with zeros and copy old data}
|
486 |
if NewSize > CurSize then begin
|
487 |
Clear;
|
488 |
NewSize := CurSize;
|
489 |
end;
|
490 |
HugeMove(CurFData^, laData^, NewSize);
|
491 |
|
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{free original data area}
|
493 |
HugeFreeMem(CurFData, CurSize);
|
494 |
{$IFDEF ThreadSafe}
|
495 |
finally
|
496 |
LeaveCS;
|
497 |
end;
|
498 |
{$ENDIF}
|
499 |
end;
|
500 |
|
501 |
procedure TStLArray.Put(El : LongInt; const Value);
|
502 |
(* model for assembly language below
|
503 |
begin
|
504 |
move(Value, (PChar(laData)+Row*FElSize)^, FElSize);
|
505 |
end;
|
506 |
*)
|
507 |
begin
|
508 |
{$IFDEF ThreadSafe}
|
509 |
EnterCS;
|
510 |
try
|
511 |
{$ENDIF}
|
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{$IFOPT R+}
|
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if (El < 0) or (El >= Count) then
|
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RaiseContainerError(stscBadIndex);
|
515 |
{$ENDIF}
|
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asm
|
517 |
mov eax,Self
|
518 |
push esi
|
519 |
push edi
|
520 |
mov esi,Value
|
521 |
mov ecx,TStLArray([eax]).FElSize
|
522 |
mov edi,El
|
523 |
db $0F,$AF,$F9 {imul edi,ecx, compiler bug workaround}
|
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add edi,TStLArray([eax]).laData
|
525 |
mov eax,ecx
|
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shr ecx,2
|
527 |
rep movsd
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mov ecx,eax
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529 |
and ecx,3
|
530 |
rep movsb
|
531 |
pop edi
|
532 |
pop esi
|
533 |
end;
|
534 |
{$IFDEF ThreadSafe}
|
535 |
finally
|
536 |
LeaveCS;
|
537 |
end;
|
538 |
{$ENDIF}
|
539 |
end;
|
540 |
|
541 |
procedure TStLArray.Sort(Compare : TUntypedCompareFunc);
|
542 |
const
|
543 |
StackSize = 32;
|
544 |
type
|
545 |
Stack = array[0..StackSize-1] of LongInt;
|
546 |
var
|
547 |
L : LongInt;
|
548 |
R : LongInt;
|
549 |
PL : LongInt;
|
550 |
PR : LongInt;
|
551 |
CurEl : Pointer;
|
552 |
PivEl : Pointer;
|
553 |
StackP : Integer;
|
554 |
LStack : Stack;
|
555 |
RStack : Stack;
|
556 |
begin
|
557 |
{$IFDEF ThreadSafe}
|
558 |
EnterCS;
|
559 |
try
|
560 |
{$ENDIF}
|
561 |
{Need at least 2 elements to sort}
|
562 |
if FCount <= 1 then
|
563 |
Exit;
|
564 |
|
565 |
GetMem(CurEl, FElSize);
|
566 |
try
|
567 |
GetMem(PivEl, FElSize);
|
568 |
try
|
569 |
{Initialize the stacks}
|
570 |
StackP := 0;
|
571 |
LStack[0] := 0;
|
572 |
RStack[0] := FCount-1;
|
573 |
|
574 |
{Repeatedly take top partition from stack}
|
575 |
repeat
|
576 |
|
577 |
{Pop the stack}
|
578 |
L := LStack[StackP];
|
579 |
R := RStack[StackP];
|
580 |
Dec(StackP);
|
581 |
|
582 |
{Sort current partition}
|
583 |
repeat
|
584 |
|
585 |
{Load the pivot element}
|
586 |
Get((L+R) div 2, PivEl^);
|
587 |
PL := L;
|
588 |
PR := R;
|
589 |
|
590 |
{Swap items in sort order around the pivot index}
|
591 |
repeat
|
592 |
Get(PL, CurEl^);
|
593 |
while Compare(CurEl^, PivEl^) < 0 do begin
|
594 |
Inc(PL);
|
595 |
Get(PL, CurEl^);
|
596 |
end;
|
597 |
Get(PR, CurEl^);
|
598 |
while Compare(PivEl^, CurEl^) < 0 do begin
|
599 |
Dec(PR);
|
600 |
Get(PR, CurEl^);
|
601 |
end;
|
602 |
if PL <= PR then begin
|
603 |
if PL <> PR then
|
604 |
{Swap the two elements}
|
605 |
Exchange(PL, PR);
|
606 |
Inc(PL); {assume we'll never sort 2 billion elements}
|
607 |
Dec(PR);
|
608 |
end;
|
609 |
until PL > PR;
|
610 |
|
611 |
{Decide which partition to sort next}
|
612 |
if (PR-L) < (R-PL) then begin
|
613 |
{Right partition is bigger}
|
614 |
if PL < R then begin
|
615 |
{Stack the request for sorting right partition}
|
616 |
Inc(StackP);
|
617 |
LStack[StackP] := PL;
|
618 |
RStack[StackP] := R;
|
619 |
end;
|
620 |
{Continue sorting left partition}
|
621 |
R := PR;
|
622 |
end else begin
|
623 |
{Left partition is bigger}
|
624 |
if L < PR then begin
|
625 |
{Stack the request for sorting left partition}
|
626 |
Inc(StackP);
|
627 |
LStack[StackP] := L;
|
628 |
RStack[StackP] := PR;
|
629 |
end;
|
630 |
{Continue sorting right partition}
|
631 |
L := PL;
|
632 |
end;
|
633 |
|
634 |
until L >= R;
|
635 |
until StackP < 0;
|
636 |
finally
|
637 |
FreeMem(PivEl, FElSize);
|
638 |
end;
|
639 |
finally
|
640 |
FreeMem(CurEl, FElSize);
|
641 |
end;
|
642 |
{$IFDEF ThreadSafe}
|
643 |
finally
|
644 |
LeaveCS;
|
645 |
end;
|
646 |
{$ENDIF}
|
647 |
end;
|
648 |
|
649 |
procedure TStLArray.LoadFromStream(S : TStream);
|
650 |
var
|
651 |
Data : pointer;
|
652 |
Reader : TReader;
|
653 |
NumElements : longint;
|
654 |
ElementSize : LongInt;
|
655 |
i : longint;
|
656 |
TotSize : longint;
|
657 |
StreamedClass : TPersistentClass;
|
658 |
StreamedClassName : string;
|
659 |
Value : TValueType;
|
660 |
begin
|
661 |
{$IFDEF ThreadSafe}
|
662 |
EnterCS;
|
663 |
try
|
664 |
{$ENDIF}
|
665 |
Clear;
|
666 |
Reader := TReader.Create(S, 1024);
|
667 |
try
|
668 |
with Reader do
|
669 |
begin
|
670 |
StreamedClassName := ReadString;
|
671 |
StreamedClass := GetClass(StreamedClassName);
|
672 |
if (StreamedClass = nil) then
|
673 |
RaiseContainerErrorFmt(stscUnknownClass, [StreamedClassName]);
|
674 |
if (not IsOrInheritsFrom(StreamedClass, Self.ClassType)) or
|
675 |
(not IsOrInheritsFrom(TStLArray, StreamedClass)) then
|
676 |
RaiseContainerError(stscWrongClass);
|
677 |
NumElements := ReadInteger;
|
678 |
ElementSize := ReadInteger;
|
679 |
if (NumElements <> FCount) or (ElementSize <> FElSize) then
|
680 |
begin
|
681 |
HugeFreeMem(laData, FCount*FElSize);
|
682 |
FCount := NumElements;
|
683 |
FElSize := ElementSize;
|
684 |
HugeGetMem(laData, NumElements*ElementSize);
|
685 |
Clear;
|
686 |
end;
|
687 |
ElementsStorable := ReadBoolean;
|
688 |
if ElementsStorable then
|
689 |
begin
|
690 |
Read(Value, sizeof(Value)); {s/b vaBinary}
|
691 |
Read(TotSize, sizeof(longint));
|
692 |
GetMem(Data, FElSize);
|
693 |
try
|
694 |
for i := 0 to pred(FCount) do
|
695 |
begin
|
696 |
Read(Data^, FElSize);
|
697 |
Put(i, Data^);
|
698 |
end;
|
699 |
finally
|
700 |
FreeMem(Data, FElSize);
|
701 |
end;
|
702 |
end
|
703 |
else
|
704 |
begin
|
705 |
ReadListBegin;
|
706 |
for i := 0 to pred(FCount) do begin
|
707 |
Data := DoLoadData(Reader);
|
708 |
Put(i, Data^);
|
709 |
end;
|
710 |
ReadListEnd;
|
711 |
end;
|
712 |
end;
|
713 |
finally
|
714 |
Reader.Free;
|
715 |
end;
|
716 |
{$IFDEF ThreadSafe}
|
717 |
finally
|
718 |
LeaveCS;
|
719 |
end;
|
720 |
{$ENDIF}
|
721 |
end;
|
722 |
|
723 |
procedure TStLArray.StoreToStream(S : TStream);
|
724 |
var
|
725 |
Writer : TWriter;
|
726 |
i : integer;
|
727 |
Data : pointer;
|
728 |
TotSize: longint;
|
729 |
Value : TValueType;
|
730 |
begin
|
731 |
{$IFDEF ThreadSafe}
|
732 |
EnterCS;
|
733 |
try
|
734 |
{$ENDIF}
|
735 |
Writer := TWriter.Create(S, 1024);
|
736 |
try
|
737 |
GetMem(Data, FElSize);
|
738 |
try
|
739 |
with Writer do begin
|
740 |
WriteString(Self.ClassName);
|
741 |
WriteInteger(FCount);
|
742 |
WriteInteger(FElSize);
|
743 |
WriteBoolean(FElStorable);
|
744 |
if ElementsStorable then begin
|
745 |
Value := vaBinary;
|
746 |
Write(Value, sizeof(Value));
|
747 |
TotSize := FCount * FElSize;
|
748 |
Write(TotSize, sizeof(longint));
|
749 |
for i := 0 to pred(FCount) do begin
|
750 |
Get(i, Data^);
|
751 |
Write(Data^, FElSize);
|
752 |
end;
|
753 |
end else begin
|
754 |
WriteListBegin;
|
755 |
for i := 0 to pred(FCount) do begin
|
756 |
Get(i, Data^);
|
757 |
DoStoreData(Writer, Data);
|
758 |
end;
|
759 |
WriteListEnd;
|
760 |
end;
|
761 |
end;
|
762 |
finally
|
763 |
FreeMem(Data, FElSize);
|
764 |
end;
|
765 |
finally
|
766 |
Writer.Free;
|
767 |
end;
|
768 |
{$IFDEF ThreadSafe}
|
769 |
finally
|
770 |
LeaveCS;
|
771 |
end;
|
772 |
{$ENDIF}
|
773 |
end;
|
774 |
|
775 |
{----------------------------------------------------------------------}
|
776 |
|
777 |
procedure TStLMatrix.Assign(Source: TPersistent);
|
778 |
begin
|
779 |
{$IFDEF ThreadSafe}
|
780 |
EnterCS;
|
781 |
try
|
782 |
{$ENDIF}
|
783 |
{The only containers that we allow to be assigned to a large matrix
|
784 |
are:
|
785 |
- a SysTools large array (TStLArray)
|
786 |
- another SysTools large matrix (TStLMatrix)
|
787 |
- a SysTools virtual matrix (TStVMatrix)}
|
788 |
if not AssignUntypedVars(Source, AssignMatrixData) then
|
789 |
inherited Assign(Source);
|
790 |
{$IFDEF ThreadSafe}
|
791 |
finally
|
792 |
LeaveCS;
|
793 |
end;{try..finally}
|
794 |
{$ENDIF}
|
795 |
end;
|
796 |
|
797 |
procedure TStLMatrix.Clear;
|
798 |
begin
|
799 |
{$IFDEF ThreadSafe}
|
800 |
EnterCS;
|
801 |
try
|
802 |
{$ENDIF}
|
803 |
HugeFillChar(lmData^, FCount*FElSize, 0);
|
804 |
{$IFDEF ThreadSafe}
|
805 |
finally
|
806 |
LeaveCS;
|
807 |
end;
|
808 |
{$ENDIF}
|
809 |
end;
|
810 |
|
811 |
procedure TStLMatrix.ForEachUntypedVar(Action : TIterateUntypedFunc;
|
812 |
OtherData : pointer);
|
813 |
var
|
814 |
FullRow : ^TAssignRowData;
|
815 |
i : Cardinal;
|
816 |
begin
|
817 |
{$IFDEF ThreadSafe}
|
818 |
EnterCS;
|
819 |
try
|
820 |
{$ENDIF}
|
821 |
GetMem(FullRow, sizeof(Cardinal) + lmRowSize);
|
822 |
try
|
823 |
for i := 0 to pred(Rows) do
|
824 |
begin
|
825 |
FullRow^.RowNum := i;
|
826 |
GetRow(i, FullRow^.Data);
|
827 |
Action(Self, FullRow^, OtherData);
|
828 |
end;
|
829 |
finally
|
830 |
FreeMem(FullRow, sizeof(Cardinal) + lmRowSize);
|
831 |
end;
|
832 |
{$IFDEF ThreadSafe}
|
833 |
finally
|
834 |
LeaveCS;
|
835 |
end;
|
836 |
{$ENDIF}
|
837 |
end;
|
838 |
|
839 |
procedure TStLMatrix.GetArraySizes(var RowCount, ColCount, ElSize : Cardinal);
|
840 |
begin
|
841 |
RowCount := Rows;
|
842 |
ColCount := Cols;
|
843 |
ElSize := ElementSize;
|
844 |
end;
|
845 |
|
846 |
procedure TStLMatrix.SetArraySizes(RowCount, ColCount, ElSize : Cardinal);
|
847 |
begin
|
848 |
if (RowCount <> Rows) or (ColCount <> Cols) or
|
849 |
(LongInt(ElSize) <> ElementSize) then
|
850 |
begin
|
851 |
HugeFreeMem(lmData, FCount*FElSize);
|
852 |
FElSize := ElSize;
|
853 |
FRows := RowCount;
|
854 |
FCols := ColCount;
|
855 |
{$IFDEF VERSION4}
|
856 |
FCount := RowCount*ColCount;
|
857 |
lmRowSize := ColCount*ElSize;
|
858 |
HugeGetMem(lmData, FCount*LongInt(ElSize));
|
859 |
{$ELSE}
|
860 |
FCount := LongInt(RowCount)*ColCount;
|
861 |
lmRowSize := LongInt(ColCount)*ElSize;
|
862 |
HugeGetMem(lmData, FCount*ElSize);
|
863 |
{$ENDIF}
|
864 |
Clear;
|
865 |
end;
|
866 |
end;
|
867 |
|
868 |
function TStLMatrix.StoresUntypedVars : boolean;
|
869 |
begin
|
870 |
Result := true;
|
871 |
end;
|
872 |
|
873 |
constructor TStLMatrix.Create(Rows, Cols, ElementSize : Cardinal);
|
874 |
begin
|
875 |
CreateContainer(TStNode, 0);
|
876 |
|
877 |
FElSize := ElementSize;
|
878 |
FRows := Rows;
|
879 |
FCols := Cols;
|
880 |
FCount := LongInt(Rows)*LongInt(Cols);
|
881 |
lmRowSize := LongInt(Cols)*LongInt(ElementSize);
|
882 |
|
883 |
if (Rows = 0) or (Cols = 0) or (ElementSize = 0) or
|
884 |
ProductOverflow(FCount, ElementSize) then
|
885 |
RaiseContainerError(stscBadSize);
|
886 |
|
887 |
HugeGetMem(lmData, FCount*LongInt(ElementSize));
|
888 |
Clear;
|
889 |
end;
|
890 |
|
891 |
destructor TStLMatrix.Destroy;
|
892 |
begin
|
893 |
HugeFreeMem(lmData, FCount*FElSize);
|
894 |
IncNodeProtection;
|
895 |
inherited Destroy;
|
896 |
end;
|
897 |
|
898 |
procedure TStLMatrix.ExchangeRows(Row1, Row2 : Cardinal);
|
899 |
begin
|
900 |
{$IFDEF ThreadSafe}
|
901 |
EnterCS;
|
902 |
try
|
903 |
{$ENDIF}
|
904 |
{$IFOPT R+}
|
905 |
if (Row1 >= Rows) or (Row2 >= Rows) then
|
906 |
RaiseContainerError(stscBadIndex);
|
907 |
{$ENDIF}
|
908 |
asm
|
909 |
mov eax,Self
|
910 |
push ebx
|
911 |
push esi
|
912 |
push edi
|
913 |
|
914 |
mov esi,Row1
|
915 |
mov edi,Row2
|
916 |
mov ecx,TStLMatrix([eax]).lmRowSize
|
917 |
mov edx,TStLMatrix([eax]).lmData
|
918 |
db $0F,$AF,$F1 {imul esi,ecx, compiler bug workaround}
|
919 |
add esi,edx
|
920 |
db $0F,$AF,$F9 {imul edi,ecx, compiler bug workaround}
|
921 |
add edi,edx
|
922 |
mov edx,ecx
|
923 |
shr ecx,2
|
924 |
jz @2
|
925 |
|
926 |
@1: mov eax,[esi] {avoid xchg instruction, which is slow}
|
927 |
mov ebx,[edi]
|
928 |
mov [esi],ebx
|
929 |
mov [edi],eax
|
930 |
add esi,4
|
931 |
add edi,4
|
932 |
dec ecx
|
933 |
jnz @1
|
934 |
|
935 |
@2: mov ecx,edx
|
936 |
and ecx,3
|
937 |
jz @4
|
938 |
|
939 |
@3: mov al,[esi] {avoid xchg instruction, which is slow}
|
940 |
mov bl,[edi]
|
941 |
mov [esi],bl
|
942 |
mov [edi],al
|
943 |
inc esi
|
944 |
inc edi
|
945 |
dec ecx
|
946 |
jnz @3
|
947 |
|
948 |
@4: pop edi
|
949 |
pop esi
|
950 |
pop ebx
|
951 |
end;
|
952 |
{$IFDEF ThreadSafe}
|
953 |
finally
|
954 |
LeaveCS;
|
955 |
end;
|
956 |
{$ENDIF}
|
957 |
end;
|
958 |
|
959 |
procedure TStLMatrix.Fill(const Value);
|
960 |
begin
|
961 |
{$IFDEF ThreadSafe}
|
962 |
EnterCS;
|
963 |
try
|
964 |
{$ENDIF}
|
965 |
HugeFillStruc(lmData^, FCount, Value, FElSize);
|
966 |
{$IFDEF ThreadSafe}
|
967 |
finally
|
968 |
LeaveCS;
|
969 |
end;
|
970 |
{$ENDIF}
|
971 |
end;
|
972 |
|
973 |
procedure TStLMatrix.Get(Row, Col : Cardinal; var Value);
|
974 |
(* model for assembly language below
|
975 |
begin
|
976 |
move((PChar(lmData)+(Row*FCols+Col)*FElSize)^, Value, FElSize);
|
977 |
end;
|
978 |
*)
|
979 |
begin
|
980 |
{$IFDEF ThreadSafe}
|
981 |
EnterCS;
|
982 |
try
|
983 |
{$ENDIF}
|
984 |
if (Row >= Rows) or (Col >= Cols) then
|
985 |
RaiseContainerError(stscBadIndex);
|
986 |
asm
|
987 |
mov eax,Self
|
988 |
push esi
|
989 |
push edi
|
990 |
mov edi,Value
|
991 |
mov esi,Row
|
992 |
imul esi,TStLMatrix([eax]).FCols
|
993 |
add esi,Col
|
994 |
mov ecx,TStLMatrix([eax]).FElSize
|
995 |
db $0F,$AF,$F1 {imul esi,ecx, compiler bug workaround}
|
996 |
add esi,TStLMatrix([eax]).lmData
|
997 |
mov eax,ecx
|
998 |
shr ecx,2
|
999 |
rep movsd
|
1000 |
mov ecx,eax
|
1001 |
and ecx,3
|
1002 |
rep movsb
|
1003 |
pop edi
|
1004 |
pop esi
|
1005 |
end;
|
1006 |
{$IFDEF ThreadSafe}
|
1007 |
finally
|
1008 |
LeaveCS;
|
1009 |
end;
|
1010 |
{$ENDIF}
|
1011 |
end;
|
1012 |
|
1013 |
procedure TStLMatrix.GetRow(Row : Cardinal; var RowValue);
|
1014 |
begin
|
1015 |
{$IFDEF ThreadSafe}
|
1016 |
EnterCS;
|
1017 |
try
|
1018 |
{$ENDIF}
|
1019 |
{$IFOPT R+}
|
1020 |
if Row >= Rows then
|
1021 |
RaiseContainerError(stscBadIndex);
|
1022 |
{$ENDIF}
|
1023 |
move((PAnsiChar(lmData)+(LongInt(Row)*lmRowSize))^, RowValue, lmRowSize);
|
1024 |
{$IFDEF ThreadSafe}
|
1025 |
finally
|
1026 |
LeaveCS;
|
1027 |
end;
|
1028 |
{$ENDIF}
|
1029 |
end;
|
1030 |
|
1031 |
procedure TStLMatrix.lmSetCols(Cols : Cardinal);
|
1032 |
var
|
1033 |
CurSize, NewSize, CurRowSize, NewRowSize, BufSize : LongInt;
|
1034 |
R, CurCols : Cardinal;
|
1035 |
CurFData, NewFData, RowData : Pointer;
|
1036 |
begin
|
1037 |
{$IFDEF ThreadSafe}
|
1038 |
EnterCS;
|
1039 |
try
|
1040 |
{$ENDIF}
|
1041 |
if Cols = FCols then
|
1042 |
Exit;
|
1043 |
|
1044 |
{validate new size}
|
1045 |
if (Cols = 0) or
|
1046 |
ProductOverflow(Cols, FRows) or
|
1047 |
ProductOverflow(LongInt(Cols)*LongInt(FRows), FElSize) then
|
1048 |
RaiseContainerError(stscBadSize);
|
1049 |
|
1050 |
{compute and save various sizes}
|
1051 |
CurSize := FCount*FElSize;
|
1052 |
NewSize := LongInt(Cols)*LongInt(FRows)*FElSize;
|
1053 |
CurRowSize := lmRowSize;
|
1054 |
NewRowSize := LongInt(Cols)*FElSize;
|
1055 |
CurCols := FCols;
|
1056 |
CurFData := lmData;
|
1057 |
|
1058 |
{allocate data block of new size}
|
1059 |
HugeGetMem(NewFData, NewSize);
|
1060 |
|
1061 |
{allocate a buffer to transfer row data}
|
1062 |
if NewRowSize > CurRowSize then
|
1063 |
BufSize := NewRowSize
|
1064 |
else
|
1065 |
BufSize := CurRowSize;
|
1066 |
try
|
1067 |
HugeGetMem(RowData, BufSize);
|
1068 |
except
|
1069 |
HugeFreeMem(NewFData, NewSize);
|
1070 |
end;
|
1071 |
|
1072 |
{transfer rows from old array to new}
|
1073 |
if Cols > CurCols then
|
1074 |
HugeFillChar(RowData^, BufSize, 0);
|
1075 |
for R := 0 to FRows-1 do begin
|
1076 |
FCols := CurCols;
|
1077 |
lmRowSize := CurRowSize;
|
1078 |
lmData := CurFData;
|
1079 |
GetRow(R, RowData^);
|
1080 |
FCols := Cols;
|
1081 |
lmRowSize := NewRowSize;
|
1082 |
lmData := NewFData;
|
1083 |
PutRow(R, RowData^);
|
1084 |
end;
|
1085 |
HugeFreeMem(RowData, BufSize);
|
1086 |
|
1087 |
FCount := LongInt(Cols)*LongInt(FRows);
|
1088 |
|
1089 |
{free original data area}
|
1090 |
HugeFreeMem(CurFData, CurSize);
|
1091 |
{$IFDEF ThreadSafe}
|
1092 |
finally
|
1093 |
LeaveCS;
|
1094 |
end;
|
1095 |
{$ENDIF}
|
1096 |
end;
|
1097 |
|
1098 |
procedure TStLMatrix.lmSetRows(Rows : Cardinal);
|
1099 |
var
|
1100 |
CurSize, NewSize : LongInt;
|
1101 |
CurFData : Pointer;
|
1102 |
begin
|
1103 |
{$IFDEF ThreadSafe}
|
1104 |
EnterCS;
|
1105 |
try
|
1106 |
{$ENDIF}
|
1107 |
if Rows = FRows then
|
1108 |
Exit;
|
1109 |
|
1110 |
{validate new size}
|
1111 |
if (Rows = 0) or
|
1112 |
ProductOverflow(Rows, FCols) or
|
1113 |
ProductOverflow(LongInt(Rows)*LongInt(FCols), FElSize) then
|
1114 |
RaiseContainerError(stscBadSize);
|
1115 |
|
1116 |
CurSize := FCount*FElSize;
|
1117 |
NewSize := LongInt(Rows)*LongInt(FCols)*FElSize;
|
1118 |
CurFData := lmData;
|
1119 |
|
1120 |
{allocate data block of new size}
|
1121 |
HugeGetMem(lmData, NewSize);
|
1122 |
|
1123 |
FCount := LongInt(Rows)*LongInt(FCols);
|
1124 |
FRows := Rows;
|
1125 |
|
1126 |
{fill extra area with zeros and copy old data}
|
1127 |
if NewSize > CurSize then begin
|
1128 |
Clear;
|
1129 |
NewSize := CurSize;
|
1130 |
end;
|
1131 |
HugeMove(CurFData^, lmData^, NewSize);
|
1132 |
|
1133 |
{free original data area}
|
1134 |
HugeFreeMem(CurFData, CurSize);
|
1135 |
{$IFDEF ThreadSafe}
|
1136 |
finally
|
1137 |
LeaveCS;
|
1138 |
end;
|
1139 |
{$ENDIF}
|
1140 |
end;
|
1141 |
|
1142 |
procedure TStLMatrix.Put(Row, Col : Cardinal; const Value);
|
1143 |
(* model for assembly language below
|
1144 |
begin
|
1145 |
move(Value, (PChar(lmData)+(Row*FCols+Col)*FElSize)^, FElSize);
|
1146 |
end;
|
1147 |
*)
|
1148 |
begin
|
1149 |
{$IFDEF ThreadSafe}
|
1150 |
EnterCS;
|
1151 |
try
|
1152 |
{$ENDIF}
|
1153 |
{$IFOPT R+}
|
1154 |
if (Row >= Rows) or (Col >= Cols) then
|
1155 |
RaiseContainerError(stscBadIndex);
|
1156 |
{$ENDIF}
|
1157 |
asm
|
1158 |
mov eax,Self
|
1159 |
push esi
|
1160 |
push edi
|
1161 |
mov esi,Value
|
1162 |
mov edi,Row
|
1163 |
imul edi, TStLMatrix([eax]).FCols
|
1164 |
add edi,Col
|
1165 |
mov ecx,TStLMatrix([eax]).FElSize
|
1166 |
db $0F,$AF,$F9 {imul edi,ecx, compiler bug workaround}
|
1167 |
add edi,TStLMatrix([eax]).lmData
|
1168 |
mov eax,ecx
|
1169 |
shr ecx,2
|
1170 |
rep movsd
|
1171 |
mov ecx,eax
|
1172 |
and ecx,3
|
1173 |
rep movsb
|
1174 |
pop edi
|
1175 |
pop esi
|
1176 |
end;
|
1177 |
{$IFDEF ThreadSafe}
|
1178 |
finally
|
1179 |
LeaveCS;
|
1180 |
end;
|
1181 |
{$ENDIF}
|
1182 |
end;
|
1183 |
|
1184 |
procedure TStLMatrix.PutRow(Row : Cardinal; const RowValue);
|
1185 |
begin
|
1186 |
{$IFDEF ThreadSafe}
|
1187 |
EnterCS;
|
1188 |
try
|
1189 |
{$ENDIF}
|
1190 |
{$IFOPT R+}
|
1191 |
if Row >= Rows then
|
1192 |
RaiseContainerError(stscBadIndex);
|
1193 |
{$ENDIF}
|
1194 |
move(RowValue, (PAnsiChar(lmData)+(LongInt(Row)*lmRowSize))^, lmRowSize);
|
1195 |
{$IFDEF ThreadSafe}
|
1196 |
finally
|
1197 |
LeaveCS;
|
1198 |
end;
|
1199 |
{$ENDIF}
|
1200 |
end;
|
1201 |
|
1202 |
procedure TStLMatrix.SortRows(KeyCol : Cardinal; Compare : TUntypedCompareFunc);
|
1203 |
const
|
1204 |
StackSize = 32;
|
1205 |
type
|
1206 |
Stack = array[0..StackSize-1] of LongInt;
|
1207 |
var
|
1208 |
L : LongInt;
|
1209 |
R : LongInt;
|
1210 |
PL : LongInt;
|
1211 |
PR : LongInt;
|
1212 |
CurEl : Pointer;
|
1213 |
PivEl : Pointer;
|
1214 |
StackP : Integer;
|
1215 |
LStack : Stack;
|
1216 |
RStack : Stack;
|
1217 |
begin
|
1218 |
{$IFDEF ThreadSafe}
|
1219 |
EnterCS;
|
1220 |
try
|
1221 |
{$ENDIF}
|
1222 |
if KeyCol >= FCols then
|
1223 |
RaiseContainerError(stscBadIndex);
|
1224 |
|
1225 |
{Need at least 2 rows to sort}
|
1226 |
if FRows <= 1 then
|
1227 |
Exit;
|
1228 |
|
1229 |
GetMem(CurEl, FElSize);
|
1230 |
try
|
1231 |
GetMem(PivEl, FElSize);
|
1232 |
|
1233 |
{Initialize the stacks}
|
1234 |
StackP := 0;
|
1235 |
LStack[0] := 0;
|
1236 |
RStack[0] := FRows-1;
|
1237 |
|
1238 |
{Repeatedly take top partition from stack}
|
1239 |
repeat
|
1240 |
|
1241 |
{Pop the stack}
|
1242 |
L := LStack[StackP];
|
1243 |
R := RStack[StackP];
|
1244 |
Dec(StackP);
|
1245 |
|
1246 |
{Sort current partition}
|
1247 |
repeat
|
1248 |
|
1249 |
{Load the pivot element}
|
1250 |
Get((L+R) div 2, KeyCol, PivEl^);
|
1251 |
PL := L;
|
1252 |
PR := R;
|
1253 |
|
1254 |
{Swap items in sort order around the pivot index}
|
1255 |
repeat
|
1256 |
Get(PL, KeyCol, CurEl^);
|
1257 |
while Compare(CurEl^, PivEl^) < 0 do begin
|
1258 |
Inc(PL);
|
1259 |
Get(PL, KeyCol, CurEl^);
|
1260 |
end;
|
1261 |
Get(PR, KeyCol, CurEl^);
|
1262 |
while Compare(PivEl^, CurEl^) < 0 do begin
|
1263 |
Dec(PR);
|
1264 |
Get(PR, KeyCol, CurEl^);
|
1265 |
end;
|
1266 |
if PL <= PR then begin
|
1267 |
if PL <> PR then
|
1268 |
{Swap the two elements}
|
1269 |
ExchangeRows(PL, PR);
|
1270 |
Inc(PL); {assume we'll never sort 2 billion elements}
|
1271 |
Dec(PR);
|
1272 |
end;
|
1273 |
until PL > PR;
|
1274 |
|
1275 |
{Decide which partition to sort next}
|
1276 |
if (PR-L) < (R-PL) then begin
|
1277 |
{Right partition is bigger}
|
1278 |
if PL < R then begin
|
1279 |
{Stack the request for sorting right partition}
|
1280 |
Inc(StackP);
|
1281 |
LStack[StackP] := PL;
|
1282 |
RStack[StackP] := R;
|
1283 |
end;
|
1284 |
{Continue sorting left partition}
|
1285 |
R := PR;
|
1286 |
end else begin
|
1287 |
{Left partition is bigger}
|
1288 |
if L < PR then begin
|
1289 |
{Stack the request for sorting left partition}
|
1290 |
Inc(StackP);
|
1291 |
LStack[StackP] := L;
|
1292 |
RStack[StackP] := PR;
|
1293 |
end;
|
1294 |
{Continue sorting right partition}
|
1295 |
L := PL;
|
1296 |
end;
|
1297 |
|
1298 |
until L >= R;
|
1299 |
until StackP < 0;
|
1300 |
|
1301 |
FreeMem(PivEl, FElSize);
|
1302 |
finally
|
1303 |
FreeMem(CurEl, FElSize);
|
1304 |
end;
|
1305 |
{$IFDEF ThreadSafe}
|
1306 |
finally
|
1307 |
LeaveCS;
|
1308 |
end;
|
1309 |
{$ENDIF}
|
1310 |
end;
|
1311 |
|
1312 |
procedure TStLMatrix.LoadFromStream(S : TStream);
|
1313 |
var
|
1314 |
Data : pointer;
|
1315 |
Reader : TReader;
|
1316 |
NumRows : longint;
|
1317 |
NumCols : longint;
|
1318 |
ElementSize : cardinal;
|
1319 |
R, C : longint;
|
1320 |
TotSize : longint;
|
1321 |
StreamedClass : TPersistentClass;
|
1322 |
StreamedClassName : string;
|
1323 |
Value : TValueType;
|
1324 |
begin
|
1325 |
{$IFDEF ThreadSafe}
|
1326 |
EnterCS;
|
1327 |
try
|
1328 |
{$ENDIF}
|
1329 |
Clear;
|
1330 |
Reader := TReader.Create(S, 1024);
|
1331 |
try
|
1332 |
with Reader do
|
1333 |
begin
|
1334 |
StreamedClassName := ReadString;
|
1335 |
StreamedClass := GetClass(StreamedClassName);
|
1336 |
if (StreamedClass = nil) then
|
1337 |
RaiseContainerErrorFmt(stscUnknownClass, [StreamedClassName]);
|
1338 |
if (not IsOrInheritsFrom(StreamedClass, Self.ClassType)) or
|
1339 |
(not IsOrInheritsFrom(TStLMatrix, StreamedClass)) then
|
1340 |
RaiseContainerError(stscWrongClass);
|
1341 |
NumRows := ReadInteger;
|
1342 |
NumCols := ReadInteger;
|
1343 |
ElementSize := ReadInteger;
|
1344 |
if (NumRows <> LongInt(Rows)) or (NumCols <> LongInt(Cols)) or
|
1345 |
(LongInt(ElementSize) <> FElSize) then
|
1346 |
begin
|
1347 |
HugeFreeMem(lmData, FCount*FElSize);
|
1348 |
FElSize := ElementSize;
|
1349 |
FRows := NumRows;
|
1350 |
FCols := NumCols;
|
1351 |
FCount := LongInt(NumRows)*NumCols;
|
1352 |
lmRowSize := LongInt(NumCols)*LongInt(ElementSize);
|
1353 |
HugeGetMem(lmData, FCount*LongInt(ElementSize));
|
1354 |
Clear;
|
1355 |
end;
|
1356 |
ElementsStorable := ReadBoolean;
|
1357 |
if ElementsStorable then
|
1358 |
begin
|
1359 |
Read(Value, sizeof(Value)); {s/b vaBinary}
|
1360 |
Read(TotSize, sizeof(longint));
|
1361 |
GetMem(Data, FElSize);
|
1362 |
try
|
1363 |
for R := 0 to pred(FRows) do
|
1364 |
for C := 0 to pred(FCols) do
|
1365 |
begin
|
1366 |
Read(Data^, FElSize);
|
1367 |
Put(R, C, Data^);
|
1368 |
end;
|
1369 |
finally
|
1370 |
FreeMem(Data, FElSize);
|
1371 |
end;
|
1372 |
end
|
1373 |
else
|
1374 |
begin
|
1375 |
ReadListBegin;
|
1376 |
for R := 0 to pred(FRows) do
|
1377 |
for C := 0 to pred(FCols) do begin
|
1378 |
Data := DoLoadData(Reader);
|
1379 |
Put(R, C, Data^);
|
1380 |
end;
|
1381 |
ReadListEnd;
|
1382 |
end;
|
1383 |
end;
|
1384 |
finally
|
1385 |
Reader.Free;
|
1386 |
end;
|
1387 |
{$IFDEF ThreadSafe}
|
1388 |
finally
|
1389 |
LeaveCS;
|
1390 |
end;
|
1391 |
{$ENDIF}
|
1392 |
end;
|
1393 |
|
1394 |
procedure TStLMatrix.StoreToStream(S : TStream);
|
1395 |
var
|
1396 |
Writer : TWriter;
|
1397 |
R, C : integer;
|
1398 |
Data : pointer;
|
1399 |
TotSize: longint;
|
1400 |
Value : TValueType;
|
1401 |
begin
|
1402 |
{$IFDEF ThreadSafe}
|
1403 |
EnterCS;
|
1404 |
try
|
1405 |
{$ENDIF}
|
1406 |
Writer := TWriter.Create(S, 1024);
|
1407 |
try
|
1408 |
GetMem(Data, FElSize);
|
1409 |
try
|
1410 |
with Writer do
|
1411 |
begin
|
1412 |
WriteString(Self.ClassName);
|
1413 |
WriteInteger(FRows);
|
1414 |
WriteInteger(FCols);
|
1415 |
WriteInteger(FElSize);
|
1416 |
WriteBoolean(FElStorable);
|
1417 |
if ElementsStorable then
|
1418 |
begin
|
1419 |
Value := vaBinary;
|
1420 |
Write(Value, sizeof(Value));
|
1421 |
TotSize := FCount * FElSize;
|
1422 |
Write(TotSize, sizeof(longint));
|
1423 |
for R := 0 to pred(FRows) do
|
1424 |
for C := 0 to pred(FCols) do
|
1425 |
begin
|
1426 |
Get(R, C, Data^);
|
1427 |
Write(Data^, FElSize);
|
1428 |
end;
|
1429 |
end
|
1430 |
else
|
1431 |
begin
|
1432 |
WriteListBegin;
|
1433 |
for R := 0 to pred(FRows) do
|
1434 |
for C := 0 to pred(FCols) do
|
1435 |
begin
|
1436 |
Get(R, C, Data^);
|
1437 |
DoStoreData(Writer, Data);
|
1438 |
end;
|
1439 |
WriteListEnd;
|
1440 |
end;
|
1441 |
end;
|
1442 |
finally
|
1443 |
FreeMem(Data, FElSize);
|
1444 |
end;
|
1445 |
finally
|
1446 |
Writer.Free;
|
1447 |
end;
|
1448 |
{$IFDEF ThreadSafe}
|
1449 |
finally
|
1450 |
LeaveCS;
|
1451 |
end;
|
1452 |
{$ENDIF}
|
1453 |
end;
|
1454 |
|
1455 |
|
1456 |
end.
|