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fpreadtiff: fixed checking for code 4096 before add instead of after last add, bug #22558

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git-svn-id: trunk@22238 -
This commit is contained in:
Mattias Gaertner 2012-08-25 09:18:10 +00:00
parent d327960994
commit be41f296a0
1 changed files with 2 additions and 1 deletions
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3
packages/fcl-image/src/fpreadtiff.pas
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@ -2181,6 +2181,8 @@ var
p: PByte; p: PByte;
begin begin
//WriteLn('AddStringToTable Code=',Code,' FCFCode=',AddFirstCharFromCode,' TableCount=',TableCount,' TableCapacity=',TableCapacity); //WriteLn('AddStringToTable Code=',Code,' FCFCode=',AddFirstCharFromCode,' TableCount=',TableCount,' TableCapacity=',TableCapacity);
if TableCount=4096-259 then
Error('LZW too many codes');
// grow table // grow table
if TableCount>=TableCapacity then begin if TableCount>=TableCapacity then begin
TableCapacity:=TableCapacity*2+128; TableCapacity:=TableCapacity*2+128;
@ -2223,7 +2225,6 @@ var
inc(TableCount); inc(TableCount);
case TableCount+259 of case TableCount+259 of
512,1024,2048: inc(CurBitLength); 512,1024,2048: inc(CurBitLength);
4096: Error('LZW too many codes');
end; end;
end; end;