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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "Filterflip.h"
#include <cstring>
namespace avg {
FilterFlip::FilterFlip() : Filter()
{
}
FilterFlip::~FilterFlip()
{
}
BitmapPtr FilterFlip::apply(BitmapPtr pBmpSource)
{
IntPoint size = pBmpSource->getSize();
BitmapPtr pBmpDest(new Bitmap(size, pBmpSource->getPixelFormat(),
pBmpSource->getName()));
unsigned char* pSrcLine = pBmpSource->getPixels();
unsigned char* pDestLine = pBmpDest->getPixels()+(size.y-1)*pBmpDest->getStride();
int lineLen = pBmpSource->getBytesPerPixel()*size.x;
for (int y = 0; y < size.y; y++) {
memcpy(pDestLine, pSrcLine, lineLen);
pSrcLine += pBmpSource->getStride();
pDestLine -= pBmpDest->getStride();
}
return pBmpDest;
}
} // namespace
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