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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
\brief Implements the OpenEXR writer K-3D object
\author Anders Dahnielson (anders@dahnielson.com)
*/
#include <k3dsdk/ibitmap_write_format.h>
#include <k3dsdk/ideletable.h>
#include <k3dsdk/ifile_format.h>
#include <k3dsdk/module.h>
#include <k3dsdk/string_modifiers.h>
#include <ImfOutputFile.h>
#include <ImfChannelList.h>
namespace
{
/////////////////////////////////////////////////////////////////////////////
// exr_writer_implementation
class exr_writer_implementation :
public k3d::ifile_format,
public k3d::ibitmap_write_format,
public k3d::ideletable
{
public:
exr_writer_implementation()
{
}
unsigned long priority()
{
return 10;
}
bool query_can_handle(const boost::filesystem::path& File)
{
return_val_if_fail(!File.empty(), false);
return "exr" == k3d::file_extension(File);
}
bool write_file(const boost::filesystem::path& File, const k3d::bitmap& Bitmap)
{
// Sanity checks ...
return_val_if_fail(!File.empty(), false);
std::cerr << info << "Write " << File.native_file_string() << " using OpenEXRWriter" << std::endl;
try
{
Imf::Header header(Bitmap.width(), Bitmap.height());
header.channels().insert("R", Imf::Channel(Imf::HALF));
header.channels().insert("G", Imf::Channel(Imf::HALF));
header.channels().insert("B", Imf::Channel(Imf::HALF));
header.channels().insert("A", Imf::Channel(Imf::HALF));
Imf::OutputFile file(File.native_file_string().c_str(), header);
const Imath::Box2i dw = file.header().dataWindow();
const int width = dw.max.x - dw.min.x + 1;
const int height = dw.max.y - dw.min.y + 1;
const k3d::pixel* pixels = Bitmap.data();
Imf::FrameBuffer frameBuffer;
frameBuffer.insert("R",
Imf::Slice(Imf::HALF,
(char *) &pixels[0].red,
sizeof(*pixels) * 1,
sizeof(*pixels) * width));
frameBuffer.insert("G",
Imf::Slice(Imf::HALF,
(char *) &pixels[0].green,
sizeof(*pixels) * 1,
sizeof(*pixels) * width));
frameBuffer.insert("B",
Imf::Slice(Imf::HALF,
(char *) &pixels[0].blue,
sizeof(*pixels) * 1,
sizeof(*pixels) * width));
frameBuffer.insert("A",
Imf::Slice(Imf::HALF,
(char *) &pixels[0].alpha,
sizeof(*pixels) * 1,
sizeof(*pixels) * width));
file.setFrameBuffer(frameBuffer);
file.writePixels(height);
}
catch (const std::exception &exc)
{
std::cerr << error << "OpenEXRWriter: Caught exception " << exc.what() << std::endl;
return false;
}
return true;
}
k3d::iplugin_factory& factory()
{
return get_factory();
}
static k3d::iplugin_factory& get_factory()
{
static k3d::plugin_factory<
k3d::application_plugin<exr_writer_implementation>,
k3d::interface_list<k3d::ibitmap_write_format> > factory(
k3d::uuid(0xf2e8f703, 0xecbf42ba, 0xbf353410, 0x0016b4cf),
"OpenEXRWriter",
"OpenEXR (*.exr)",
"Bitmap File Formats");
return factory;
}
};
}//namespace
namespace libk3dopenexr
{
/////////////////////////////////////////////////////////////////////////////
// exr_writer_factory
k3d::iplugin_factory& exr_writer_factory()
{
return ::exr_writer_implementation::get_factory();
}
} // namespace libk3dopenexr
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