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alphablend.hh

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/*
 * PIAVE - PIAVE Is A Video Editor
 *
 * Copyright (C) 2002 Rolf Dubitzky, rolf@dubitzky.de
 *
 */

/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */


#if ! defined( ALPHABLEND_HH )
#define ALPHABLEND_HH

// PIAVE
#include "libpiave/operatorbase.hh"
#include "libpiave/plugin.hh"

namespace PIAVE {

    class AlphaBlendOp : public BinaryOp
    {
      public:
        AlphaBlendOp();
        virtual void renderFrame( Frame & dest, Frame & src_a, Frame & src_b, Time t );
        virtual PropertyNode * getProperties( PropertyNode * p=0 ) const { return 0; };        

      private:
        OpParDouble _amplitude;
    };

    class AlphaBlendPlugin : public Plugin
    {
      public:
        AlphaBlendPlugin();
        virtual PluginBase   * newElement( const PropertyNode*p = 0 );
    };

}

#endif

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