mirror of
https://github.com/libretro/scummvm.git
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339 lines
8.0 KiB
C++
339 lines
8.0 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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* $URL$
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* $Id$
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*
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*/
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#include "common/endian.h"
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#include "gob/gob.h"
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#include "gob/saveload.h"
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#include "gob/global.h"
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#include "gob/game.h"
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namespace Gob {
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SaveLoad_v4::SaveFile SaveLoad_v4::_saveFiles[] = {
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{ "cat.inf", 0, kSaveModeSave, kSaveGame },
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{ "save.tmp", 0, kSaveModeSave, kSaveTempBuffer }
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};
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SaveLoad_v4::SaveLoad_v4(GobEngine *vm, const char *targetName) :
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SaveLoad(vm, targetName) {
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_firstSizeGame = true;
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_saveFiles[0].destName = new char[strlen(targetName) + 5];
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_saveFiles[1].destName = 0;
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sprintf(_saveFiles[0].destName, "%s.s00", targetName);
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_varSize = 0;
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_hasIndex = false;
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memset(_propBuffer, 0, 1000);
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}
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SaveLoad_v4::~SaveLoad_v4() {
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delete[] _saveFiles[0].destName;
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}
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SaveLoad::SaveMode SaveLoad_v4::getSaveMode(const char *fileName) {
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fileName = stripPath(fileName);
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for (int i = 0; i < ARRAYSIZE(_saveFiles); i++)
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if (!scumm_stricmp(fileName, _saveFiles[i].sourceName))
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return _saveFiles[i].mode;
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return kSaveModeNone;
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}
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int SaveLoad_v4::getSaveType(const char *fileName) {
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for (int i = 0; i < ARRAYSIZE(_saveFiles); i++)
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if (!scumm_stricmp(fileName, _saveFiles[i].sourceName))
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return i;
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return -1;
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}
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int32 SaveLoad_v4::getSizeVersioned(int type) {
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assertInited();
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switch (_saveFiles[type].type) {
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case kSaveGame:
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return getSizeGame(_saveFiles[type]);
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case kSaveTempBuffer:
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return getSizeTempBuffer(_saveFiles[type]);
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default:
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break;
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}
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return -1;
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}
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bool SaveLoad_v4::loadVersioned(int type, int16 dataVar, int32 size, int32 offset) {
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assertInited();
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switch (_saveFiles[type].type) {
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case kSaveGame:
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if (loadGame(_saveFiles[type], dataVar, size, offset))
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return true;
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warning("While loading from slot %d", getSlot(offset));
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break;
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case kSaveTempBuffer:
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if (loadTempBuffer(_saveFiles[type], dataVar, size, offset))
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return true;
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warning("While loading from the tempBuffer");
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break;
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default:
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break;
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}
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return false;
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}
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bool SaveLoad_v4::saveVersioned(int type, int16 dataVar, int32 size, int32 offset) {
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assertInited();
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switch (_saveFiles[type].type) {
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case kSaveGame:
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if (saveGame(_saveFiles[type], dataVar, size, offset))
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return true;
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warning("While saving to slot %d", getSlot(offset));
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break;
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case kSaveTempBuffer:
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if (saveTempBuffer(_saveFiles[type], dataVar, size, offset))
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return true;
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warning("While saving to the tempBuffer");
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break;
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default:
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break;
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}
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return false;
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}
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int SaveLoad_v4::getSlot(int32 offset) const {
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return ((offset - 1700) / _varSize);
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}
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int SaveLoad_v4::getSlotRemainder(int32 offset) const {
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return ((offset - 1700) % _varSize);
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}
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int32 SaveLoad_v4::getSizeGame(SaveFile &saveFile) {
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if (_firstSizeGame) {
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_firstSizeGame = false;
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return -1;
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}
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Common::SaveFileManager *saveMan = g_system->getSavefileManager();
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Common::InSaveFile *in;
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int32 size = -1;
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for (int i = 29; i >= 0; i--) {
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in = saveMan->openForLoading(setCurrentSlot(saveFile.destName, i));
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if (in) {
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delete in;
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size = (i + 1) * _varSize + 1700;
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break;
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}
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}
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return size;
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}
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int32 SaveLoad_v4::getSizeTempBuffer(SaveFile &saveFile) {
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return _tmpBuffer.getSize();
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}
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bool SaveLoad_v4::loadGame(SaveFile &saveFile,
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int16 dataVar, int32 size, int32 offset) {
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if (size == 0) {
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dataVar = 0;
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size = _varSize;
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}
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if (offset < 500) {
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debugC(3, kDebugSaveLoad, "Loading global properties");
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if ((size + offset) > 500) {
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warning("Wrong global properties list size (%d, %d)", size, offset);
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return false;
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}
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memcpy(_vm->_global->_inter_variables + dataVar,
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_propBuffer + offset, size);
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memcpy(_vm->_global->_inter_variablesSizes + dataVar,
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_propBuffer + offset + 500, size);
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} else if (offset == 500) {
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debugC(3, kDebugSaveLoad, "Loading save index");
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if (size != 1200) {
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warning("Requested index has wrong size (%d)", size);
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return false;
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}
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SaveLoad::buildIndex(_vm->_global->_inter_variables + dataVar,
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saveFile.destName, 30, 40, 1000);
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memset(_vm->_global->_inter_variablesSizes + dataVar, 0, 1200);
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} else {
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int slot = getSlot(offset);
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int slotRem = getSlotRemainder(offset);
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debugC(2, kDebugSaveLoad, "Loading from slot %d", slot);
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SaveLoad::setCurrentSlot(saveFile.destName, slot);
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if ((slot < 0) || (slot >= 30) || (slotRem != 0)) {
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warning("Invalid loading procedure (%d, %d, %d, %d, %d)",
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dataVar, size, offset, slot, slotRem);
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return false;
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}
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if (!_save.load(dataVar, size, 540, saveFile.destName,
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_vm->_global->_inter_variables, _vm->_global->_inter_variablesSizes))
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return false;
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}
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return true;
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}
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bool SaveLoad_v4::loadTempBuffer(SaveFile &saveFile,
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int16 dataVar, int32 size, int32 offset) {
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debugC(3, kDebugSaveLoad, "Loading from the temporary buffer (%d, %d, %d)",
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dataVar, size, offset);
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if (size < 0) {
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warning("Woodruff stub: Read screenshot");
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return false;
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}
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return _tmpBuffer.read(_vm->_global->_inter_variables + dataVar, size, offset);
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}
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bool SaveLoad_v4::saveGame(SaveFile &saveFile,
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int16 dataVar, int32 size, int32 offset) {
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if (size == 0) {
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dataVar = 0;
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size = _varSize;
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}
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if (offset < 500) {
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debugC(3, kDebugSaveLoad, "Loading global properties");
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if ((size + offset) > 500) {
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warning("Wrong global properties list size (%d, %d)", size, offset);
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return false;
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}
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memcpy(_propBuffer + offset,
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_vm->_global->_inter_variables + dataVar, size);
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memcpy(_propBuffer + offset + 500,
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_vm->_global->_inter_variablesSizes + dataVar, size);
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} else if (offset == 500) {
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debugC(3, kDebugSaveLoad, "Saving save index");
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if (size != 1200) {
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warning("Requested index has wrong size (%d)", size);
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return false;
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}
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memcpy(_indexBuffer, _vm->_global->_inter_variables + dataVar, size);
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_hasIndex = true;
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} else {
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int slot = getSlot(offset);
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int slotRem = getSlotRemainder(offset);
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debugC(2, kDebugSaveLoad, "Saving to slot %d", slot);
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SaveLoad::setCurrentSlot(saveFile.destName, slot);
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if ((slot < 0) || (slot >= 30) || (slotRem != 0)) {
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warning("Invalid saving procedure (%d, %d, %d, %d, %d)",
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dataVar, size, offset, slot, slotRem);
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return false;
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}
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if (!_hasIndex) {
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warning("No index written yet");
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return false;
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}
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_hasIndex = false;
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if(!_save.save(0, 500, 0, saveFile.destName, _propBuffer, _propBuffer + 500))
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return false;
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if(!_save.save(0, 40, 500, saveFile.destName, _indexBuffer + (slot * 40), 0))
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return false;
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if (!_save.save(dataVar, size, 540, saveFile.destName,
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_vm->_global->_inter_variables, _vm->_global->_inter_variablesSizes))
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return false;
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}
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return true;
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}
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bool SaveLoad_v4::saveTempBuffer(SaveFile &saveFile,
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int16 dataVar, int32 size, int32 offset) {
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debugC(3, kDebugSaveLoad, "Saving to the temporary buffer (%d, %d, %d)",
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dataVar, size, offset);
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if (size < 0) {
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warning("Woodruff stub: Write screenshot");
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return false;
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}
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return _tmpBuffer.write(_vm->_global->_inter_variables + dataVar, size, offset);
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}
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void SaveLoad_v4::assertInited() {
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if (_varSize > 0)
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return;
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_varSize = READ_LE_UINT32(_vm->_game->_totFileData + 0x2C) * 4;
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_save.addStage(500);
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_save.addStage(40, false);
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_save.addStage(_varSize);
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}
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} // End of namespace Gob
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