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// libavg - Media Playback Engine.
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// Copyright (C) 2003-2011 Ulrich von Zadow
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// Current versions can be found at www.libavg.de
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#include "BmpTextureMover.h"
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#include "GLTexture.h"
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#include "../base/Logger.h"
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#include "../base/Exception.h"
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using namespace boost;
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BmpTextureMover::BmpTextureMover(const IntPoint& size, PixelFormat pf)
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: TextureMover(size, pf)
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m_pBmp = BitmapPtr(new Bitmap(size, pf));
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BmpTextureMover::~BmpTextureMover()
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void BmpTextureMover::moveBmpToTexture(BitmapPtr pBmp, GLTexture& tex)
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AVG_ASSERT(pBmp->getSize() == tex.getSize());
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AVG_ASSERT(getSize() == pBmp->getSize());
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AVG_ASSERT(pBmp->getPixelFormat() == getPF());
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unsigned char * pStartPos = pBmp->getPixels();
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IntPoint size = tex.getSize();
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glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, size.x, size.y,
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tex.getGLFormat(getPF()), tex.getGLType(getPF()),
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OGLErrorCheck(AVG_ERR_VIDEO_GENERAL,
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"BmpTextureMover::moveBmpToTexture: glTexSubImage2D()");
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BitmapPtr BmpTextureMover::moveTextureToBmp(GLTexture& tex, int mipmapLevel)
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AVG_ASSERT(getSize() == tex.getGLSize());
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if (mipmapLevel == 0) {
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activeSize = tex.getSize();
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pBmp = BitmapPtr(new Bitmap(tex.getGLSize(), getPF()));
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activeSize = tex.getMipmapSize(mipmapLevel);
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pBmp = BitmapPtr(new Bitmap(activeSize, getPF()));
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tex.activate(GL_TEXTURE0);
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unsigned char * pStartPos = pBmp->getPixels();
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glGetTexImage(GL_TEXTURE_2D, mipmapLevel, GLTexture::getGLFormat(getPF()),
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GLTexture::getGLType(getPF()), pStartPos);
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OGLErrorCheck(AVG_ERR_VIDEO_GENERAL,
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"BmpTextureMover::moveTextureToBmp: glGetTexImage()");
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if (activeSize != tex.getGLSize()) {
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BitmapPtr pTempBmp = pBmp;
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pBmp = BitmapPtr(new Bitmap(activeSize, getPF(), pStartPos,
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pTempBmp->getStride(), true));
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BitmapPtr BmpTextureMover::lock()
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void BmpTextureMover::unlock()
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void BmpTextureMover::moveToTexture(GLTexture& tex)
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moveBmpToTexture(m_pBmp, tex);