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Diffstat (limited to 'src/graphics/Filterfliprgb.cpp')
-rw-r--r-- | src/graphics/Filterfliprgb.cpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/graphics/Filterfliprgb.cpp b/src/graphics/Filterfliprgb.cpp new file mode 100644 index 0000000..8a0e8c3 --- /dev/null +++ b/src/graphics/Filterfliprgb.cpp @@ -0,0 +1,92 @@ +// +// 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 "Filterfliprgb.h" +#include "Pixeldefs.h" + +#include "../base/Exception.h" + +#include <iostream> + +using namespace std; + +namespace avg { + +FilterFlipRGB::FilterFlipRGB(bool bChangePF) + : Filter(), + m_bChangePF(bChangePF) +{ +} + +FilterFlipRGB::~FilterFlipRGB() +{ + +} + +void FilterFlipRGB::applyInPlace(BitmapPtr pBmp) +{ + AVG_ASSERT(pBmp->getBytesPerPixel() >= 3); + PixelFormat PF = pBmp->getPixelFormat(); + if (m_bChangePF) { + switch(PF) { + case B8G8R8A8: + pBmp->setPixelFormat(R8G8B8A8); + break; + case B8G8R8X8: + pBmp->setPixelFormat(R8G8B8X8); + break; + case R8G8B8A8: + pBmp->setPixelFormat(B8G8R8A8); + break; + case R8G8B8X8: + pBmp->setPixelFormat(B8G8R8X8); + break; + case R8G8B8: + pBmp->setPixelFormat(B8G8R8); + break; + case B8G8R8: + pBmp->setPixelFormat(R8G8B8); + break; + default: + // Only 24 and 32 bpp supported. + AVG_ASSERT(false); + } + } + IntPoint size = pBmp->getSize(); + for (int y = 0; y < size.y; y++) { + unsigned char * pLine = pBmp->getPixels()+y*pBmp->getStride(); + if (pBmp->getBytesPerPixel() == 4) { + for (int x = 0; x < size.x; x++) { + unsigned char tmp = pLine[x*4+REDPOS]; + pLine[x*4+REDPOS] = pLine[x*4+BLUEPOS]; + pLine[x*4+BLUEPOS] = tmp; + } + } else { + for (int x = 0; x < size.x; x++) { + unsigned char tmp = pLine[x*3+REDPOS]; + pLine[x*3+REDPOS] = pLine[x*3+BLUEPOS]; + pLine[x*3+BLUEPOS] = tmp; + } + } + } +} + +} // namespace |