scummvm/engines/freescape/scr.h

55 lines
1.5 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef FREESCAPE_SCR_H
#define FREESCAPE_SCR_H
#include "image/image_decoder.h"
/*
ZX-Spectrum SCREEN$ decoder based on:
https://gist.github.com/alexanderk23/f459c76847d9412548f7
*/
namespace Common {
class SeekableReadStream;
}
namespace Freescape {
class ScrDecoder : public Image::ImageDecoder {
public:
ScrDecoder();
virtual ~ScrDecoder();
// ImageDecoder API
void destroy();
virtual bool loadStream(Common::SeekableReadStream &stream);
virtual const Graphics::Surface *getSurface() const { return _surface; }
private:
Graphics::Surface *_surface;
uint32 getPixelAddress(int x, int y);
uint32 getAttributeAddress(int x, int y);
};
} // End of namespace Freescape
#endif // FREESCAPE_SCR_H