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/*
Copyright (C) 2021 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCPOMATIC_PIXEL_QUANTA_H
#define DCPOMATIC_PIXEL_QUANTA_H
#include <libcxml/cxml.h>
#include <dcp/types.h>
#include <dcp/warnings.h>
LIBDCP_DISABLE_WARNINGS
#include <libxml++/libxml++.h>
LIBDCP_ENABLE_WARNINGS
class PixelQuanta
{
public:
PixelQuanta ()
: x(1)
, y(1)
{}
/** @param x number of pixels that must not be split in the x direction; e.g. if x=2 scale should
* only happen to multiples of 2 width, and x crop should only happen at multiples of 2 position.
* @param y similar value for y / height.
*/
PixelQuanta (int x_, int y_)
: x(x_)
, y(y_)
{}
PixelQuanta (cxml::ConstNodePtr node);
void as_xml (xmlpp::Element* node) const;
int round_x (int x_) const;
int round_y (int y_) const;
dcp::Size round (dcp::Size size) const;
int x;
int y;
};
PixelQuanta max (PixelQuanta const& a, PixelQuanta const& b);
bool operator==(PixelQuanta const& a, PixelQuanta const& b);
bool operator!=(PixelQuanta const& a, PixelQuanta const& b);
#endif
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