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76 lines
2.2 KiB
C++
76 lines
2.2 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 "illusions/gamestate.h"
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namespace Illusions {
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GameState::GameState()
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: _writeBufferSize(0), _writeBuffer(0), _readStream(0) {
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}
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GameState::~GameState() {
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free(_writeBuffer);
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}
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bool GameState::readState(uint32 &sceneId, uint32 &threadId) {
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sceneId = _readStream->readUint32LE();
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threadId = _readStream->readUint32LE();
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return readStateInternal(_readStream);
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}
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void GameState::writeState(uint32 sceneId, uint32 threadId) {
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Common::WriteStream *writeStream = newWriteStream();
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writeStream->writeUint32LE(sceneId);
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writeStream->writeUint32LE(threadId);
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writeStateInternal(writeStream);
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}
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void GameState::read(Common::ReadStream *in) {
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uint32 size = in->readUint32LE();
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_readStream = in->readStream(size);
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}
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void GameState::write(Common::WriteStream *out) {
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out->writeUint32LE(_writeBufferSize);
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out->write(_writeBuffer, _writeBufferSize);
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}
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void GameState::deleteReadStream() {
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delete _readStream;
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_readStream = 0;
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}
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Common::WriteStream *GameState::newWriteStream() {
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if (_writeBufferSize == 0 || !_writeBuffer) {
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_writeBufferSize = calcWriteBufferSize();
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_writeBuffer = (byte*)malloc(_writeBufferSize);
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}
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return new Common::MemoryWriteStream(_writeBuffer, _writeBufferSize);
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}
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uint32 GameState::calcWriteBufferSize() {
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return calcWriteBufferSizeInternal() + 4 + 4;
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}
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} // End of namespace Illusions
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