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/* 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 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "common/scummsys.h"
#include "engines/util.h"
#include "graphics/palette.h"
#include "mads/mads.h"
#include "mads/msurface.h"
#include "mads/msprite.h"
namespace MADS {
enum {
kEndOfLine = 0,
kEndOfSprite = 1,
kMarker = 2
};
MSprite::MSprite(): MSurface() {
_encoding = 0;
}
MSprite::MSprite(Common::SeekableReadStream *source, const Common::Point &offset,
int widthVal, int heightVal, bool decodeRle, uint8 encodingVal)
: MSurface(widthVal, heightVal),
_encoding(encodingVal), _offset(offset) {
// Load the sprite data
loadSprite(source);
}
MSprite::~MSprite() {
}
// TODO: The sprite outlines (pixel value 0xFD) are not shown
void MSprite::loadSprite(Common::SeekableReadStream *source) {
byte *outp, *lineStart;
bool newLine = false;
outp = getData();
lineStart = getData();
while (1) {
byte cmd1, cmd2, count, pixel;
if (newLine) {
outp = lineStart + getWidth();
lineStart = outp;
newLine = false;
}
cmd1 = source->readByte();
if (cmd1 == 0xFC)
break;
else if (cmd1 == 0xFF)
newLine = true;
else if (cmd1 == 0xFD) {
while (!newLine) {
count = source->readByte();
if (count == 0xFF) {
newLine = true;
} else {
pixel = source->readByte();
while (count--)
*outp++ = (pixel == 0xFD) ? 0 : pixel;
}
}
} else {
while (!newLine) {
cmd2 = source->readByte();
if (cmd2 == 0xFF) {
newLine = true;
} else if (cmd2 == 0xFE) {
count = source->readByte();
pixel = source->readByte();
while (count--)
*outp++ = (pixel == 0xFD) ? 0 : pixel;
} else {
*outp++ = (cmd2 == 0xFD) ? 0 : cmd2;
}
}
}
}
}
} // End of namespace MADS
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