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Flip Horizontal

Procedura odbija bitmapę względem osi Y

procedure FlipHorizontal(var Bitmap:TBitmap);
type
ByteTriple =array[0..2] of byte        ; // musimy czytać po 3 bajty żeby nie zamienić kolejności BGR na RGB
var
ByteL,ByteR:^ByteTriple;
ByteTemp:ByteTriple;
H,V:Integer;
begin
Bitmap.PixelFormat:=pf24bit;
for V:=0 to (Bitmap.Height -1 )  do
  begin
  ByteL:=Bitmap.ScanLine[V];
  ByteR:=Bitmap.ScanLine[V];
  inc(ByteR,Bitmap.Width -1);
    for H:=0 to (Bitmap.Width -1) div 2  do
    begin
    ByteTemp:=ByteL^;
    ByteL^:=ByteR^;
    ByteR^:=ByteTemp;
    Inc(ByteL);
    Dec(ByteR);
    end;
  end;
end;
to image delphi flip horizontal by drs on May 07, 2007
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