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https://github.com/libretro/scummvm.git
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87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/archive.h"
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#include "common/debug-channels.h"
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#include "common/debug.h"
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#include "common/stream.h"
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#include "graphics/surface.h"
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#include "prince/pscr.h"
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namespace Prince {
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PScr::PScr() :_file(0), _x(0), _y(0), _step(0), _addr(0), _len(0), _surface(NULL)
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{
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}
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PScr::~PScr() {
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if (_surface) {
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_surface->free();
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delete _surface;
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_surface = NULL;
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}
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}
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void PScr::loadSurface(Common::SeekableReadStream &stream) {
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stream.skip(4);
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int width = stream.readUint16LE();
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int height = stream.readUint16LE();
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_surface = new Graphics::Surface();
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_surface->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
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for (int h = 0; h < _surface->h; h++) {
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stream.read(_surface->getBasePtr(0, h), _surface->w);
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}
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}
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bool PScr::loadFromStream(Common::SeekableReadStream &stream) {
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int32 pos = stream.pos();
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uint16 file = stream.readUint16LE();
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if (file == 0xFFFF)
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return false;
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_file = file;
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_x = stream.readUint16LE();
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_y = stream.readUint16LE();
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_step = stream.readUint16LE();
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_addr = stream.readUint32LE();
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const Common::String pscrStreamName = Common::String::format("PS%02d", _file);
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Common::SeekableReadStream *pscrStream = SearchMan.createReadStreamForMember(pscrStreamName);
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if (!pscrStream) {
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error("Can't load %s", pscrStreamName.c_str());
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return false;
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}
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loadSurface(*pscrStream);
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delete pscrStream;
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stream.seek(pos + 12); // size of PScrList struct
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debug("Parallex nr %d, x %d, y %d, step %d", _file, _x, _y, _step);
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return true;
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}
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}
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