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// K-3D
// Copyright (c) 1995-2004, Timothy M. Shead
//
// Contact: tshead@k-3d.com
//
// 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
/** \file
\author Anders Dahnielson (anders@dahnielson.com)
*/
#include <k3dsdk/module.h>
#include <k3dsdk/plugins.h>
#include "bitmap_composite_simple.h"
namespace libk3dbitmap
{
/////////////////////////////////////////////////////////////////////////////
// bitmap_image_over_implementation
class bitmap_image_over_implementation :
public bitmap_composite_simple
{
typedef bitmap_composite_simple base;
public:
bitmap_image_over_implementation(k3d::idocument& Document) :
base(Document)
{
}
void on_value_change() {}
void on_composite(const k3d::pixel& A, const k3d::pixel& B, k3d::pixel& O)
{
double invmat = k3d::pixel::sample_traits::invert(A.alpha);
O.red = A.red + (invmat * B.red);
O.green = A.green + (invmat * B.green);
O.blue = A.blue + (invmat * B.blue);
O.alpha = A.alpha + (invmat * B.alpha);
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<
k3d::document_plugin<bitmap_image_over_implementation>,
k3d::interface_list<k3d::ibitmap_source,
k3d::interface_list<k3d::ibitmap_sink> > > factory(
k3d::uuid(0xfd5811d8, 0x582d4fbb, 0xb7a16cbe, 0x62d375f9),
"BitmapImageOver",
"Lays image on top of another",
"Objects",
k3d::iplugin_factory::STABLE);
return factory;
}
};
/////////////////////////////////////////////////////////////////////////////
// bitmap_image_over_factory
k3d::iplugin_factory& bitmap_image_over_factory()
{
return bitmap_image_over_implementation::get_factory();
}
} // namespace libk3dbitmap
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