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LCL: improved stream of large objects (issue #7270)

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git-svn-id: trunk@10321 -
This commit is contained in:
vincents 2006-12-12 13:09:30 +00:00
parent 90251b1bdc
commit 69391d2648
2 changed files with 26 additions and 4 deletions
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14
lcl/lclmemmanager.pas
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@ -27,7 +27,7 @@ unit LCLMemManager;
interface interface
uses uses
Classes; Classes, Math;
type type
PLCLMemManagerItem = ^TLCLMemManagerItem; PLCLMemManagerItem = ^TLCLMemManagerItem;
@ -92,6 +92,8 @@ type
{ TExtMemoryStream } { TExtMemoryStream }
TExtMemoryStream = class(TMemoryStream) TExtMemoryStream = class(TMemoryStream)
protected
function Realloc(var NewCapacity: Longint): Pointer; override;
public public
property Capacity: Longint read FCapacity write SetCapacity; property Capacity: Longint read FCapacity write SetCapacity;
end; end;
@ -267,5 +269,15 @@ begin
end; end;
end; end;
{ TExtMemoryStream }
function TExtMemoryStream.Realloc(var NewCapacity: LongInt): Pointer;
begin
// if we are growing, grow at least a quarter
if (NewCapacity>Capacity) then
NewCapacity := Max(NewCapacity, Capacity + Capacity div 4);
Result:=inherited Realloc(NewCapacity);
end;
end. end.

16
lcl/lresources.pp
View File

@ -1933,9 +1933,12 @@ procedure LRSObjectBinaryToText(Input, Output: TStream);
procedure ProcessBinary; procedure ProcessBinary;
var var
ToDo, DoNow, i: LongInt; ToDo, DoNow, StartPos, i: LongInt;
lbuf: array[0..31] of Byte; lbuf: array[0..31] of Byte;
s: String; s: String;
p: pchar;
const
HexDigits: array[0..$F] of char = '0123456789ABCDEF';
begin begin
ToDo := ReadLRSCardinal(Input); ToDo := ReadLRSCardinal(Input);
OutLn('{'); OutLn('{');
@ -1944,9 +1947,16 @@ procedure LRSObjectBinaryToText(Input, Output: TStream);
if DoNow > 32 then DoNow := 32; if DoNow > 32 then DoNow := 32;
Dec(ToDo, DoNow); Dec(ToDo, DoNow);
s := Indent + ' '; s := Indent + ' ';
StartPos := length(s);
Input.Read(lbuf, DoNow); Input.Read(lbuf, DoNow);
for i := 0 to DoNow - 1 do setlength(s, StartPos+DoNow*2);
s := s + IntToHex(lbuf[i], 2); p := @s[StartPos];
for i := 0 to DoNow - 1 do begin
inc(p);
p^ := HexDigits[(lbuf[i] shr 4) and $F];
inc(p);
p^ := HexDigits[lbuf[i] and $F];
end;
OutLn(s); OutLn(s);
end; end;
OutStr(indent); OutStr(indent);