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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/archive.h"
#include "common/stream.h"
#include "prince/pscr.h"
#include "prince/resource.h"
namespace Prince {
PScr::PScr() : _x(0), _y(0), _step(0), _surface(nullptr)
{
}
PScr::~PScr() {
if (_surface != nullptr) {
_surface->free();
delete _surface;
_surface = nullptr;
}
}
void PScr::loadSurface(Common::SeekableReadStream &stream) {
stream.skip(4);
int width = stream.readUint16LE();
int height = stream.readUint16LE();
_surface = new Graphics::Surface();
_surface->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
for (int h = 0; h < _surface->h; h++) {
stream.read(_surface->getBasePtr(0, h), _surface->w);
}
}
bool PScr::loadFromStream(Common::SeekableReadStream &stream) {
int32 pos = stream.pos();
uint16 file = stream.readUint16LE();
if (file == 0xFFFF) {
return false;
}
_x = stream.readUint16LE();
_y = stream.readUint16LE();
_step = stream.readUint16LE();
const Common::String pscrStreamName = Common::String::format("PS%02d", file);
Common::SeekableReadStream *pscrStream = SearchMan.createReadStreamForMember(pscrStreamName);
if (pscrStream != nullptr) {
pscrStream = Resource::getDecompressedStream(pscrStream);
loadSurface(*pscrStream);
}
delete pscrStream;
stream.seek(pos + 12); // size of PScrList struct
return true;
}
} // End of namespace Prince
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