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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/argb_frame.h
* @brief Container for a single image from a picture asset.
*/
#include <stdint.h>
#include "util.h"
namespace libdcp
{
/** @class ARGBFrame
* @brief A single frame of picture data held in an ARGB buffer.
*
* The format of the data is:
*
* <pre>
* Byte /- 0 -------|- 1 --------|- 2 --------|- 3 --------|- 4 --------|- 5 --------| ...
* |(0, 0) Blue|(0, 0)Green |(0, 0) Red |(0, 0) Alpha|(0, 1) Blue |(0, 1) Green| ...
* </pre>
*
* So that the first byte is the blue component of the pixel at x=0, y=0, the second
* is the green component, and so on.
*
* Lines are packed so that the second row directly follows the first.
*/
class ARGBFrame
{
public:
ARGBFrame (Size size);
~ARGBFrame ();
uint8_t* data () const {
return _data;
}
/** Length of one picture row in bytes */
int stride () const;
Size size () const {
return _size;
}
private:
Size _size;
uint8_t* _data;
};
}
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