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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/ibitmap_sink.h>
#include <k3dsdk/ibitmap_source.h>
#include <k3dsdk/bitmap.h>
#include <k3dsdk/object.h>
#include <k3dsdk/property_collection.h>
#include <k3dsdk/persistence.h>
#include <k3dsdk/module.h>
#include <k3dsdk/plugins.h>
namespace libk3dbitmap
{
/////////////////////////////////////////////////////////////////////////////
// bitmap_matte_keymix_implementation
class bitmap_matte_keymix_implementation :
public k3d::persistent<k3d::object>,
public k3d::ibitmap_source,
public k3d::ibitmap_sink
{
typedef k3d::persistent<k3d::object> base;
public:
bitmap_matte_keymix_implementation(k3d::idocument& Document) :
base(Document),
m_input_a(k3d::init_name("input_a") + k3d::init_description("A input bitmap [bitmap]") + k3d::init_value<k3d::bitmap*>(0) + k3d::init_document(Document)),
m_input_b(k3d::init_name("input_b") + k3d::init_description("B input bitmap [bitmap]") + k3d::init_value<k3d::bitmap*>(0) + k3d::init_document(Document)),
m_input_c(k3d::init_name("input_c") + k3d::init_description("C input bitmap [bitmap]") + k3d::init_value<k3d::bitmap*>(0) + k3d::init_document(Document)),
m_output(k3d::init_name("output") + k3d::init_description("Output bitmap [bitmap]") + k3d::init_document(Document)),
m_value(k3d::init_name("value") + k3d::init_description("Threshold value [double]") + k3d::init_value(0.0) + k3d::init_document(Document))
{
register_property(m_input_a);
register_property(m_input_b);
register_property(m_input_c);
register_property(m_output);
register_property(m_value);
m_input_a.changed_signal().connect(SigC::slot(*this, &bitmap_matte_keymix_implementation::on_reset_bitmap));
m_input_b.changed_signal().connect(SigC::slot(*this, &bitmap_matte_keymix_implementation::on_reset_bitmap));
m_input_c.changed_signal().connect(SigC::slot(*this, &bitmap_matte_keymix_implementation::on_reset_bitmap));
m_output.need_data_signal().connect(SigC::slot(*this, &bitmap_matte_keymix_implementation::on_create_bitmap));
m_value.changed_signal().connect(SigC::slot(*this, &bitmap_matte_keymix_implementation::on_reset_bitmap));
}
k3d::iproperty& bitmap_source_output()
{
return m_output;
}
k3d::iproperty& bitmap_sink_input()
{
return m_input_a;
}
void on_reset_bitmap()
{
m_output.reset();
}
k3d::bitmap* on_create_bitmap()
{
// If we don't have any input bitmap, we're done ...
k3d::bitmap* const A_bitmap = m_input_a.property_value();
k3d::bitmap* const B_bitmap = m_input_b.property_value();
k3d::bitmap* const C_bitmap = m_input_c.property_value();
if(!A_bitmap && !B_bitmap)
return 0;
else if (!B_bitmap)
return new k3d::bitmap(*A_bitmap);
else if (!A_bitmap)
return new k3d::bitmap(*B_bitmap);
// Find the output bounding box
k3d::bounding_box O_daw;
O_daw.insert(A_bitmap->data_window());
O_daw.insert(B_bitmap->data_window());
// Create output bitmap
k3d::bitmap* const O_bitmap = new k3d::bitmap(static_cast<int>(O_daw.px - O_daw.nx + 1), static_cast<int>(O_daw.py - O_daw.ny + 1));
O_bitmap->data_window(static_cast<int>(O_daw.nx), static_cast<int>(O_daw.ny));
// Offset from output origin
int A_xoffset = static_cast<int>(O_daw.nx - A_bitmap->data_window().nx);
int A_yoffset = static_cast<int>(O_daw.ny - A_bitmap->data_window().ny);
int B_xoffset = static_cast<int>(O_daw.nx - B_bitmap->data_window().nx);
int B_yoffset = static_cast<int>(O_daw.ny - B_bitmap->data_window().ny);
int C_xoffset = static_cast<int>(O_daw.nx - C_bitmap->data_window().nx);
int C_yoffset = static_cast<int>(O_daw.ny - C_bitmap->data_window().ny);
// Produce output
k3d::bitmap::iterator O = O_bitmap->begin();
for(k3d::pixel_size_t y = 0; y < O_bitmap->height(); ++y)
{
for(k3d::pixel_size_t x = 0; x < O_bitmap->width(); ++x)
{
k3d::pixel A = get_pixel(A_bitmap, x+A_xoffset, y+A_yoffset);
k3d::pixel B = get_pixel(B_bitmap, x+B_xoffset, y+B_yoffset);
k3d::pixel C = get_pixel(B_bitmap, x+C_xoffset, y+C_yoffset);
double A_red = A.red * 0.0039215686274509803;
double A_green = A.green * 0.0039215686274509803;
double A_blue = A.blue * 0.0039215686274509803;
double B_red = B.red * 0.0039215686274509803;
double B_green = B.green * 0.0039215686274509803;
double B_blue = B.blue * 0.0039215686274509803;
double B_alpha = B.alpha * 0.0039215686274509803;
double C_alpha = C.alpha * 0.0039215686274509803;
double val = m_value.property_value() * C_alpha;
double invval = 1 - m_value.property_value() * C_alpha;
(*O).red = static_cast<boost::uint8_t>(( invval * A_red + (val * B_red) ) * 255);
(*O).green = static_cast<boost::uint8_t>(( invval * A_green + (val * B_green) ) * 255);
(*O).blue = static_cast<boost::uint8_t>(( invval * A_blue + (val * B_blue) ) * 255);
(*O).alpha = static_cast<boost::uint8_t>(( invval * B_alpha ) * 255);
++O;
}
}
return O_bitmap;;
}
k3d::pixel get_pixel(k3d::bitmap* Bitmap, int u, int v)
{
// We must be inside the data at least
if (u < 0 || v < 0 || u > static_cast<int>(Bitmap->width()) || v > static_cast<int>(Bitmap->height()))
return k3d::pixel(0,0,0,1);
// Return the pixel
return *(Bitmap->begin() + (u + (Bitmap->width() * v)));
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<
k3d::document_plugin<bitmap_matte_keymix_implementation>,
k3d::interface_list<k3d::ibitmap_source,
k3d::interface_list<k3d::ibitmap_sink> > > factory(
k3d::uuid(0x65d26c93, 0xd5514790, 0xa7a36a07, 0x1c220ca6),
"BitmapMatteKeyMix",
"Mix two images through a third mask",
"Objects",
k3d::iplugin_factory::EXPERIMENTAL);
return factory;
}
private:
k3d_data_property(k3d::bitmap*, k3d::immutable_name, k3d::change_signal, k3d::no_undo, k3d::local_storage, k3d::no_constraint) m_input_a;
k3d_data_property(k3d::bitmap*, k3d::immutable_name, k3d::change_signal, k3d::no_undo, k3d::local_storage, k3d::no_constraint) m_input_b;
k3d_data_property(k3d::bitmap*, k3d::immutable_name, k3d::change_signal, k3d::no_undo, k3d::local_storage, k3d::no_constraint) m_input_c;
k3d_read_only_data_property(k3d::bitmap*, k3d::immutable_name, k3d::change_signal, k3d::no_undo, k3d::demand_storage, k3d::no_constraint) m_output;
k3d_data_property(double, k3d::immutable_name, k3d::change_signal, k3d::with_undo, k3d::local_storage, k3d::no_constraint) m_value;
};
/////////////////////////////////////////////////////////////////////////////
// bitmap_matte_keymix_factory
k3d::iplugin_factory& bitmap_matte_keymix_factory()
{
return bitmap_matte_keymix_implementation::get_factory();
}
} // namespace libk3dbitmap
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