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* Apply bugfix patch by Michalis Kamburelis from bug report 13463

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git-svn-id: trunk@12999 -
This commit is contained in:
daniel 2009-04-04 13:09:29 +00:00
parent ab41a9b2b1
commit 1b8902e341
1 changed files with 14 additions and 2 deletions
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16
packages/fftw/src/fftw_s.pas
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@ -117,11 +117,19 @@ procedure fftw_freemem(p:pointer);inline;
procedure fftw_getmem(var p:pointer;size:sizeint); procedure fftw_getmem(var p:pointer;size:sizeint);
begin
{$IFDEF align} {$IFDEF align}
getmem(p,size+16-1); var
originalptr:pointer;
begin
{ We allocate additional "align-1" bytes to be able to align.
And we allocate additional "SizeOf(Pointer)" to always have space to store
the value of the original pointer. }
getmem(originalptr,size + align-1 + SizeOf(Pointer));
ptruint(p):=(ptruint(originalptr) + SizeOf(Pointer));
ptruint(p):=(ptruint(p)+align-1) and not (align-1); ptruint(p):=(ptruint(p)+align-1) and not (align-1);
PPointer(ptruint(p) - SizeOf(Pointer))^:=originalptr;
{$ELSE} {$ELSE}
begin
getmem(p,size); getmem(p,size);
{$ENDIF} {$ENDIF}
end; end;
@ -129,7 +137,11 @@ end;
procedure fftw_freemem(p:pointer);inline; procedure fftw_freemem(p:pointer);inline;
begin begin
{$IFDEF align}
freemem(PPointer(ptruint(p) - SizeOf(Pointer))^);
{$ELSE}
freemem(p); freemem(p);
{$ENDIF}
end; end;
end. end.