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scummvm/scumm/saveload.cpp
Max Horn c33cc2ce85 Last part of patch #1163026 (Thumbnails for ScummEngine) 
svn-id: r17982
2005-05-09 00:09:01 +00:00

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/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001-2005 The ScummVM project
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#include "stdafx.h"
#include "common/config-manager.h"
#include "common/savefile.h"
#include "common/system.h"
#include "scumm/actor.h"
#include "scumm/charset.h"
#include "scumm/imuse_digi/dimuse.h"
#include "scumm/imuse.h"
#include "scumm/intern.h"
#include "scumm/object.h"
#include "scumm/resource.h"
#include "scumm/saveload.h"
#include "scumm/scumm.h"
#include "scumm/sound.h"
#include "scumm/verbs.h"
#include "scumm/wiz_he.h"
#include "sound/audiocd.h"
#include "sound/mixer.h"
namespace Scumm {
struct SaveGameHeader {
uint32 type;
uint32 size;
uint32 ver;
char name[32];
};
void ScummEngine::requestSave(int slot, const char *name, bool temporary) {
_saveLoadSlot = slot;
_saveTemporaryState = temporary;
_saveLoadFlag = 1; // 1 for save
assert(name);
strcpy(_saveLoadName, name);
}
void ScummEngine::requestLoad(int slot) {
_saveLoadSlot = slot;
_saveTemporaryState = false;
_saveLoadFlag = 2; // 2 for load
}
bool ScummEngine::saveState(int slot, bool compat) {
char filename[256];
OutSaveFile *out;
SaveGameHeader hdr;
makeSavegameName(filename, slot, compat);
if (!(out = _saveFileMan->openForSaving(filename)))
return false;
memcpy(hdr.name, _saveLoadName, sizeof(hdr.name));
hdr.type = MKID('SCVM');
hdr.size = 0;
hdr.ver = TO_LE_32(CURRENT_VER);
out->write(&hdr, sizeof(hdr));
saveThumbnail(out);
Serializer ser(0, out, CURRENT_VER);
saveOrLoad(&ser, CURRENT_VER);
delete out;
debug(1, "State saved as '%s'", filename);
return true;
}
bool ScummEngine::loadState(int slot, bool compat) {
char filename[256];
InSaveFile *in;
int i, j;
SaveGameHeader hdr;
int sb, sh;
makeSavegameName(filename, slot, compat);
if (!(in = _saveFileMan->openForLoading(filename)))
return false;
in->read(&hdr, sizeof(hdr));
if (hdr.type != MKID('SCVM')) {
warning("Invalid savegame '%s'", filename);
delete in;
return false;
}
// In older versions of ScummVM, the header version was not endian safe.
// We account for that by retrying once with swapped byte order.
if (hdr.ver > CURRENT_VER)
hdr.ver = SWAP_BYTES_32(hdr.ver);
if (hdr.ver < VER(7) || hdr.ver > CURRENT_VER)
{
warning("Invalid version of '%s'", filename);
delete in;
return false;
}
// We (deliberately) broke HE savegame compatibility at some point.
if (hdr.ver < VER(50) && _heversion >= 71) {
warning("Unsupported version of '%s'", filename);
delete in;
return false;
}
// Sine version 52 a thumbnail is saved directly after the header
if (hdr.ver >= VER(52)) {
uint32 type = in->readUint32BE();
if (type != MKID('THMB')) {
warning("Can not load thumbnail");
delete in;
return false;
}
uint32 size = in->readUint32BE();
in->skip(size - 8);
}
// Due to a bug in scummvm up to and including 0.3.0, save games could be saved
// in the V8/V9 format but were tagged with a V7 mark. Ouch. So we just pretend V7 == V8 here
if (hdr.ver == VER(7))
hdr.ver = VER(8);
memcpy(_saveLoadName, hdr.name, sizeof(hdr.name));
// Unless specifically requested with _saveSound, we do not save the iMUSE
// state for temporary state saves - such as certain cutscenes in DOTT,
// FOA, Sam and Max, etc.
//
// Thusly, we should probably not stop music when restoring from one of
// these saves. This change stops the Mole Man theme from going quiet in
// Sam & Max when Doug tells you about the Ball of Twine, as mentioned in
// patch #886058.
//
// If we don't have iMUSE at all we may as well stop the sounds. The previous
// default behavior here was to stopAllSounds on all state restores.
if (!_imuse || _saveSound || !_saveTemporaryState)
_sound->stopAllSounds();
if (_imuseDigital) {
_imuseDigital->stopAllSounds();
_imuseDigital->resetState();
}
_sound->stopCD();
_sound->pauseSounds(true);
CHECK_HEAP
closeRoom();
memset(_inventory, 0, sizeof(_inventory[0]) * _numInventory);
memset(_newNames, 0, sizeof(_newNames[0]) * _numNewNames);
// Because old savegames won't fill the entire gfxUsageBits[] array,
// clear it here just to be sure it won't hold any unforseen garbage.
memset(gfxUsageBits, 0, sizeof(gfxUsageBits));
// Nuke all resources
for (i = rtFirst; i <= rtLast; i++)
if (i != rtTemp && i != rtBuffer && (i != rtSound || _saveSound || !compat))
for (j = 0; j < res.num[i]; j++) {
res.nukeResource(i, j);
res.flags[i][j] = 0;
}
initScummVars();
if (_features & GF_OLD_BUNDLE)
loadCharset(0); // FIXME - HACK ?
//
// Now do the actual loading
//
Serializer ser(in, 0, hdr.ver);
saveOrLoad(&ser, hdr.ver);
delete in;
// Update volume settings
setupVolumes();
// Init NES costume data
if (_platform == Common::kPlatformNES) {
if (hdr.ver < VER(47))
_NESCostumeSet = 0;
NES_loadCostumeSet(_NESCostumeSet);
}
// Normally, _vm->_screenTop should always be >= 0, but for some old save games
// it is not, hence we check & correct it here.
if (_screenTop < 0)
_screenTop = 0;
if (hdr.ver < VER(33) && _version >= 7) {
// For a long time, we didn't set these vars to default values.
VAR(VAR_DEFAULT_TALK_DELAY) = 60;
if (_version == 7)
VAR(VAR_NUM_GLOBAL_OBJS) = _numGlobalObjects - 1;
}
if (hdr.ver < VER(30)) {
// For a long time, we used incorrect location, causing it to default to zero.
if (_version == 8)
_scummVars[VAR_CHARINC] = (_features & GF_DEMO) ? 3 : 1;
// Needed due to subtitle speed changes
_defaultTalkDelay /= 20;
}
// For a long time, we used incorrect locations for some camera related
// scumm vars. We now know the proper locations. To be able to properly use
// old save games, we update the old (bad) variables to the new (correct)
// ones.
if (hdr.ver < VER(28) && _version == 8) {
_scummVars[VAR_CAMERA_MIN_X] = _scummVars[101];
_scummVars[VAR_CAMERA_MAX_X] = _scummVars[102];
_scummVars[VAR_CAMERA_MIN_Y] = _scummVars[103];
_scummVars[VAR_CAMERA_MAX_Y] = _scummVars[104];
_scummVars[VAR_CAMERA_THRESHOLD_X] = _scummVars[105];
_scummVars[VAR_CAMERA_THRESHOLD_Y] = _scummVars[106];
_scummVars[VAR_CAMERA_SPEED_X] = _scummVars[107];
_scummVars[VAR_CAMERA_SPEED_Y] = _scummVars[108];
_scummVars[VAR_CAMERA_ACCEL_X] = _scummVars[109];
_scummVars[VAR_CAMERA_ACCEL_Y] = _scummVars[110];
}
// With version 22, we replaced the scale items with scale slots. So when
// loading such an old save game, try to upgrade the old to new format.
if (hdr.ver < VER(22)) {
// Convert all rtScaleTable resources to matching scale items
for (i = 1; i < res.num[rtScaleTable]; i++) {
convertScaleTableToScaleSlot(i);
}
}
// We could simply dirty colours 0-15 for 16-colour games -- nowadays
// they handle their palette pretty much like the more recent games
// anyway. There was a time, though, when re-initializing was necessary
// for backwards compatibility, and it may still prove useful if we
// ever add options for using different 16-colour palettes.
if (_version == 1) {
if (_gameId == GID_MANIAC)
if (_platform == Common::kPlatformNES)
setupNESPalette();
else
setupV1ManiacPalette();
else
setupV1ZakPalette();
} else if (_features & GF_16COLOR) {
switch (_renderMode) {
case Common::kRenderEGA:
setupEGAPalette();
break;
case Common::kRenderAmiga:
setupAmigaPalette();
break;
case Common::kRenderCGA:
setupCGAPalette();
break;
case Common::kRenderHercA:
case Common::kRenderHercG:
setupHercPalette();
break;
default:
if ((_platform == Common::kPlatformAmiga) || (_platform == Common::kPlatformAtariST))
setupAmigaPalette();
else
setupEGAPalette();
}
} else
setDirtyColors(0, 255);
if (hdr.ver < VER(35) && _gameId == GID_MANIAC && _version == 1)
setupV1ActorTalkColor();
// Load the static room data
loadRoomSubBlocks();
if (!(_features & GF_NEW_CAMERA)) {
camera._last.x = camera._cur.x;
}
sb = _screenB;
sh = _screenH;
// Restore the virtual screens and force a fade to black.
initScreens(0, _screenHeight);
VirtScreen *vs = &virtscr[kMainVirtScreen];
memset(vs->getPixels(0, 0), 0, vs->pitch * vs->h);
vs->setDirtyRange(0, vs->h);
updateDirtyScreen(kMainVirtScreen);
updatePalette();
initScreens(sb, sh);
_completeScreenRedraw = true;
// Reset charset mask
_charset->_hasMask = false;
_charset->clearTextSurface();
_lastCodePtr = NULL;
_drawObjectQueNr = 0;
_verbMouseOver = 0;
cameraMoved();
initBGBuffers(_roomHeight);
if (VAR_ROOM_FLAG != 0xFF)
VAR(VAR_ROOM_FLAG) = 1;
// Sync with current config setting
if (_version >= 7)
VAR(VAR_VOICE_MODE) = ConfMan.getBool("subtitles");
CHECK_HEAP
debug(1, "State loaded from '%s'", filename);
_sound->pauseSounds(false);
return true;
}
void ScummEngine::makeSavegameName(char *out, int slot, bool temporary) {
sprintf(out, "%s.%c%.2d", _targetName.c_str(), temporary ? 'c' : 's', slot);
}
void ScummEngine::listSavegames(bool *marks, int num) {
char prefix[256];
makeSavegameName(prefix, 99, false);
prefix[strlen(prefix)-2] = 0;
_saveFileMan->listSavefiles(prefix, marks, num);
}
bool ScummEngine::getSavegameName(int slot, char *desc) {
char filename[256];
InSaveFile *in;
SaveGameHeader hdr;
int len;
makeSavegameName(filename, slot, false);
if (!(in = _saveFileMan->openForLoading(filename))) {
strcpy(desc, "");
return false;
}
len = in->read(&hdr, sizeof(hdr));
delete in;
if (len != sizeof(hdr) || hdr.type != MKID('SCVM')) {
strcpy(desc, "Invalid savegame");
return false;
}
if (hdr.ver > CURRENT_VER)
hdr.ver = TO_LE_32(hdr.ver);
if (hdr.ver < VER(7) || hdr.ver > CURRENT_VER) {
strcpy(desc, "Invalid version");
return false;
}
// We (deliberately) broke HE savegame compatibility at some point.
if (hdr.ver < VER(50) && _heversion >= 71) {
strcpy(desc, "Unsupported version");
return false;
}
memcpy(desc, hdr.name, sizeof(hdr.name));
desc[sizeof(hdr.name) - 1] = 0;
return true;
}
Graphics::Surface *ScummEngine::loadThumbnailFromSlot(int slot) {
char filename[256];
InSaveFile *in;
SaveGameHeader hdr;
int len;
makeSavegameName(filename, slot, false);
if (!(in = _saveFileMan->openForLoading(filename))) {
return 0;
}
len = in->read(&hdr, sizeof(hdr));
if (len != sizeof(hdr) || hdr.type != MKID('SCVM')) {
delete in;
return 0;
}
if (hdr.ver > CURRENT_VER)
hdr.ver = TO_LE_32(hdr.ver);
if (hdr.ver < VER(52)) {
delete in;
return 0;
}
Graphics::Surface *thumb = loadThumbnail(in);
delete in;
return thumb;
}
void ScummEngine::saveOrLoad(Serializer *s, uint32 savegameVersion) {
const SaveLoadEntry objectEntries[] = {
MKLINE(ObjectData, OBIMoffset, sleUint32, VER(8)),
MKLINE(ObjectData, OBCDoffset, sleUint32, VER(8)),
MKLINE(ObjectData, walk_x, sleUint16, VER(8)),
MKLINE(ObjectData, walk_y, sleUint16, VER(8)),
MKLINE(ObjectData, obj_nr, sleUint16, VER(8)),
MKLINE(ObjectData, x_pos, sleInt16, VER(8)),
MKLINE(ObjectData, y_pos, sleInt16, VER(8)),
MKLINE(ObjectData, width, sleUint16, VER(8)),
MKLINE(ObjectData, height, sleUint16, VER(8)),
MKLINE(ObjectData, actordir, sleByte, VER(8)),
MKLINE(ObjectData, parentstate, sleByte, VER(8)),
MKLINE(ObjectData, parent, sleByte, VER(8)),
MKLINE(ObjectData, state, sleByte, VER(8)),
MKLINE(ObjectData, fl_object_index, sleByte, VER(8)),
MKLINE(ObjectData, flags, sleByte, VER(46)),
MKEND()
};
const SaveLoadEntry *actorEntries = Actor::getSaveLoadEntries();
const SaveLoadEntry *soundEntries = _sound->getSaveLoadEntries();
const SaveLoadEntry verbEntries[] = {
MKLINE(VerbSlot, curRect.left, sleInt16, VER(8)),
MKLINE(VerbSlot, curRect.top, sleInt16, VER(8)),
MKLINE(VerbSlot, curRect.right, sleInt16, VER(8)),
MKLINE(VerbSlot, curRect.bottom, sleInt16, VER(8)),
MKLINE(VerbSlot, oldRect.left, sleInt16, VER(8)),
MKLINE(VerbSlot, oldRect.top, sleInt16, VER(8)),
MKLINE(VerbSlot, oldRect.right, sleInt16, VER(8)),
MKLINE(VerbSlot, oldRect.bottom, sleInt16, VER(8)),
MKLINE_OLD(VerbSlot, verbid, sleByte, VER(8), VER(11)),
MKLINE(VerbSlot, verbid, sleInt16, VER(12)),
MKLINE(VerbSlot, color, sleByte, VER(8)),
MKLINE(VerbSlot, hicolor, sleByte, VER(8)),
MKLINE(VerbSlot, dimcolor, sleByte, VER(8)),
MKLINE(VerbSlot, bkcolor, sleByte, VER(8)),
MKLINE(VerbSlot, type, sleByte, VER(8)),
MKLINE(VerbSlot, charset_nr, sleByte, VER(8)),
MKLINE(VerbSlot, curmode, sleByte, VER(8)),
MKLINE(VerbSlot, saveid, sleByte, VER(8)),
MKLINE(VerbSlot, key, sleByte, VER(8)),
MKLINE(VerbSlot, center, sleByte, VER(8)),
MKLINE(VerbSlot, prep, sleByte, VER(8)),
MKLINE(VerbSlot, imgindex, sleUint16, VER(8)),
MKEND()
};
const SaveLoadEntry mainEntries[] = {
MKARRAY(ScummEngine, _gameMD5[0], sleUint8, 16, VER(39)),
MK_OBSOLETE(ScummEngine, _roomWidth, sleUint16, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _roomHeight, sleUint16, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _ENCD_offs, sleUint32, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _EXCD_offs, sleUint32, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _IM00_offs, sleUint32, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _CLUT_offs, sleUint32, VER(8), VER(50)),
MK_OBSOLETE(ScummEngine, _EPAL_offs, sleUint32, VER(8), VER(9)),
MK_OBSOLETE(ScummEngine, _PALS_offs, sleUint32, VER(8), VER(50)),
MKLINE(ScummEngine, _curPalIndex, sleByte, VER(8)),
MKLINE(ScummEngine, _currentRoom, sleByte, VER(8)),
MKLINE(ScummEngine, _roomResource, sleByte, VER(8)),
MKLINE(ScummEngine, _numObjectsInRoom, sleByte, VER(8)),
MKLINE(ScummEngine, _currentScript, sleByte, VER(8)),
MK_OBSOLETE_ARRAY(ScummEngine, _localScriptOffsets[0], sleUint32, _numLocalScripts, VER(8), VER(50)),
// vm.localvar grew from 25 to 40 script entries and then from
// 16 to 32 bit variables (but that wasn't reflect here)... and
// THEN from 16 to 25 variables.
MKARRAY2_OLD(ScummEngine, vm.localvar[0][0], sleUint16, 17, 25, (byte*)vm.localvar[1] - (byte*)vm.localvar[0], VER(8), VER(8)),
MKARRAY2_OLD(ScummEngine, vm.localvar[0][0], sleUint16, 17, 40, (byte*)vm.localvar[1] - (byte*)vm.localvar[0], VER(9), VER(14)),
// We used to save 25 * 40 = 1000 blocks; but actually, each 'row consisted of 26 entry,
// i.e. 26 * 40 = 1040. Thus the last 40 blocks of localvar where not saved at all. To be
// able to load this screwed format, we use a trick: We load 26 * 38 = 988 blocks.
// Then, we mark the followin 12 blocks (24 bytes) as obsolete.
MKARRAY2_OLD(ScummEngine, vm.localvar[0][0], sleUint16, 26, 38, (byte*)vm.localvar[1] - (byte*)vm.localvar[0], VER(15), VER(17)),
MK_OBSOLETE_ARRAY(ScummEngine, vm.localvar[39][0], sleUint16, 12, VER(15), VER(17)),
// This was the first proper multi dimensional version of the localvars, with 32 bit values
MKARRAY2_OLD(ScummEngine, vm.localvar[0][0], sleUint32, 26, 40, (byte*)vm.localvar[1] - (byte*)vm.localvar[0], VER(18), VER(19)),
// Then we doubled the script slots again, from 40 to 80
MKARRAY2(ScummEngine, vm.localvar[0][0], sleUint32, 26, NUM_SCRIPT_SLOT, (byte*)vm.localvar[1] - (byte*)vm.localvar[0], VER(20)),
MKARRAY(ScummEngine, _resourceMapper[0], sleByte, 128, VER(8)),
MKARRAY(ScummEngine, _charsetColorMap[0], sleByte, 16, VER(8)),
// _charsetData grew from 10*16 to 15*16 bytes
MKARRAY_OLD(ScummEngine, _charsetData[0][0], sleByte, 10 * 16, VER(8), VER(9)),
MKARRAY(ScummEngine, _charsetData[0][0], sleByte, 15 * 16, VER(10)),
MKLINE(ScummEngine, _curExecScript, sleUint16, VER(8)),
MKLINE(ScummEngine, camera._dest.x, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._dest.y, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._cur.x, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._cur.y, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._last.x, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._last.y, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._accel.x, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._accel.y, sleInt16, VER(8)),
MKLINE(ScummEngine, _screenStartStrip, sleInt16, VER(8)),
MKLINE(ScummEngine, _screenEndStrip, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._mode, sleByte, VER(8)),
MKLINE(ScummEngine, camera._follows, sleByte, VER(8)),
MKLINE(ScummEngine, camera._leftTrigger, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._rightTrigger, sleInt16, VER(8)),
MKLINE(ScummEngine, camera._movingToActor, sleUint16, VER(8)),
MKLINE(ScummEngine, _actorToPrintStrFor, sleByte, VER(8)),
MKLINE(ScummEngine, _charsetColor, sleByte, VER(8)),
// _charsetBufPos was changed from byte to int
MKLINE_OLD(ScummEngine, _charsetBufPos, sleByte, VER(8), VER(9)),
MKLINE(ScummEngine, _charsetBufPos, sleInt16, VER(10)),
MKLINE(ScummEngine, _haveMsg, sleByte, VER(8)),
MKLINE(ScummEngine, _useTalkAnims, sleByte, VER(8)),
MKLINE(ScummEngine, _talkDelay, sleInt16, VER(8)),
MKLINE(ScummEngine, _defaultTalkDelay, sleInt16, VER(8)),
MK_OBSOLETE(ScummEngine, _numInMsgStack, sleInt16, VER(8), VER(27)),
MKLINE(ScummEngine, _sentenceNum, sleByte, VER(8)),
MKLINE(ScummEngine, vm.cutSceneStackPointer, sleByte, VER(8)),
MKARRAY(ScummEngine, vm.cutScenePtr[0], sleUint32, 5, VER(8)),
MKARRAY(ScummEngine, vm.cutSceneScript[0], sleByte, 5, VER(8)),
MKARRAY(ScummEngine, vm.cutSceneData[0], sleInt16, 5, VER(8)),
MKLINE(ScummEngine, vm.cutSceneScriptIndex, sleInt16, VER(8)),
MKLINE(ScummEngine, vm.numNestedScripts, sleByte, VER(8)),
MKLINE(ScummEngine, _userPut, sleByte, VER(8)),
MKLINE(ScummEngine, _userState, sleUint16, VER(17)),
MKLINE(ScummEngine, _cursor.state, sleByte, VER(8)),
MK_OBSOLETE(ScummEngine, gdi._cursorActive, sleByte, VER(8), VER(20)),
MKLINE(ScummEngine, _currentCursor, sleByte, VER(8)),
MKARRAY(ScummEngine, _grabbedCursor[0], sleByte, 8192, VER(20)),
MKLINE(ScummEngine, _cursor.width, sleInt16, VER(20)),
MKLINE(ScummEngine, _cursor.height, sleInt16, VER(20)),
MKLINE(ScummEngine, _cursor.hotspotX, sleInt16, VER(20)),
MKLINE(ScummEngine, _cursor.hotspotY, sleInt16, VER(20)),
MKLINE(ScummEngine, _cursor.animate, sleByte, VER(20)),
MKLINE(ScummEngine, _cursor.animateIndex, sleByte, VER(20)),
MKLINE(ScummEngine, _mouse.x, sleInt16, VER(20)),
MKLINE(ScummEngine, _mouse.y, sleInt16, VER(20)),
MKLINE(ScummEngine, _doEffect, sleByte, VER(8)),
MKLINE(ScummEngine, _switchRoomEffect, sleByte, VER(8)),
MKLINE(ScummEngine, _newEffect, sleByte, VER(8)),
MKLINE(ScummEngine, _switchRoomEffect2, sleByte, VER(8)),
MKLINE(ScummEngine, _bgNeedsRedraw, sleByte, VER(8)),
// The state of palManipulate is stored only since V10
MKLINE(ScummEngine, _palManipStart, sleByte, VER(10)),
MKLINE(ScummEngine, _palManipEnd, sleByte, VER(10)),
MKLINE(ScummEngine, _palManipCounter, sleUint16, VER(10)),
// gfxUsageBits grew from 200 to 410 entries. Then 3 * 410 entries:
MKARRAY_OLD(ScummEngine, gfxUsageBits[0], sleUint32, 200, VER(8), VER(9)),
MKARRAY_OLD(ScummEngine, gfxUsageBits[0], sleUint32, 410, VER(10), VER(13)),
MKARRAY(ScummEngine, gfxUsageBits[0], sleUint32, 3 * 410, VER(14)),
MK_OBSOLETE(ScummEngine, gdi._transparentColor, sleByte, VER(8), VER(50)),
MKARRAY(ScummEngine, _currentPalette[0], sleByte, 768, VER(8)),
// Sam & Max specific palette replaced by _shadowPalette now.
MK_OBSOLETE_ARRAY(ScummEngine, _proc_special_palette[0], sleByte, 256, VER(8), VER(33)),
MKARRAY(ScummEngine, _charsetBuffer[0], sleByte, 256, VER(8)),
MKLINE(ScummEngine, _egoPositioned, sleByte, VER(8)),
// gdi._imgBufOffs grew from 4 to 5 entries. Then one day we realized
// that we don't have to store it since initBGBuffers() recomputes it.
MK_OBSOLETE_ARRAY(ScummEngine, gdi._imgBufOffs[0], sleUint16, 4, VER(8), VER(9)),
MK_OBSOLETE_ARRAY(ScummEngine, gdi._imgBufOffs[0], sleUint16, 5, VER(10), VER(26)),
// See _imgBufOffs: _numZBuffer is recomputed by initBGBuffers().
MK_OBSOLETE(ScummEngine, gdi._numZBuffer, sleByte, VER(8), VER(26)),
MKLINE(ScummEngine, _screenEffectFlag, sleByte, VER(8)),
MK_OBSOLETE(ScummEngine, _randSeed1, sleUint32, VER(8), VER(9)),
MK_OBSOLETE(ScummEngine, _randSeed2, sleUint32, VER(8), VER(9)),
// Converted _shakeEnabled to boolean and added a _shakeFrame field.
MKLINE_OLD(ScummEngine, _shakeEnabled, sleInt16, VER(8), VER(9)),
MKLINE(ScummEngine, _shakeEnabled, sleByte, VER(10)),
MKLINE(ScummEngine, _shakeFrame, sleUint32, VER(10)),
MKLINE(ScummEngine, _keepText, sleByte, VER(8)),
MKLINE(ScummEngine, _screenB, sleUint16, VER(8)),
MKLINE(ScummEngine, _screenH, sleUint16, VER(8)),
MKLINE(ScummEngine, _NESCostumeSet, sleUint16, VER(47)),
MK_OBSOLETE(ScummEngine, _cd_track, sleInt16, VER(9), VER(9)),
MK_OBSOLETE(ScummEngine, _cd_loops, sleInt16, VER(9), VER(9)),
MK_OBSOLETE(ScummEngine, _cd_frame, sleInt16, VER(9), VER(9)),
MK_OBSOLETE(ScummEngine, _cd_end, sleInt16, VER(9), VER(9)),
MKEND()
};
const SaveLoadEntry scriptSlotEntries[] = {
MKLINE(ScriptSlot, offs, sleUint32, VER(8)),
MKLINE(ScriptSlot, delay, sleInt32, VER(8)),
MKLINE(ScriptSlot, number, sleUint16, VER(8)),
MKLINE(ScriptSlot, delayFrameCount, sleUint16, VER(8)),
MKLINE(ScriptSlot, status, sleByte, VER(8)),
MKLINE(ScriptSlot, where, sleByte, VER(8)),
MKLINE(ScriptSlot, freezeResistant, sleByte, VER(8)),
MKLINE(ScriptSlot, recursive, sleByte, VER(8)),
MKLINE(ScriptSlot, freezeCount, sleByte, VER(8)),
MKLINE(ScriptSlot, didexec, sleByte, VER(8)),
MKLINE(ScriptSlot, cutsceneOverride, sleByte, VER(8)),
MKLINE(ScriptSlot, cycle, sleByte, VER(46)),
MK_OBSOLETE(ScriptSlot, unk5, sleByte, VER(8), VER(10)),
MKEND()
};
const SaveLoadEntry nestedScriptEntries[] = {
MKLINE(NestedScript, number, sleUint16, VER(8)),
MKLINE(NestedScript, where, sleByte, VER(8)),
MKLINE(NestedScript, slot, sleByte, VER(8)),
MKEND()
};
const SaveLoadEntry sentenceTabEntries[] = {
MKLINE(SentenceTab, verb, sleUint8, VER(8)),
MKLINE(SentenceTab, preposition, sleUint8, VER(8)),
MKLINE(SentenceTab, objectA, sleUint16, VER(8)),
MKLINE(SentenceTab, objectB, sleUint16, VER(8)),
MKLINE(SentenceTab, freezeCount, sleUint8, VER(8)),
MKEND()
};
const SaveLoadEntry stringTabEntries[] = {
// Then _default/restore of a StringTab entry becomes a one liner.
MKLINE(StringTab, xpos, sleInt16, VER(8)),
MKLINE(StringTab, _default.xpos, sleInt16, VER(8)),
MKLINE(StringTab, ypos, sleInt16, VER(8)),
MKLINE(StringTab, _default.ypos, sleInt16, VER(8)),
MKLINE(StringTab, right, sleInt16, VER(8)),
MKLINE(StringTab, _default.right, sleInt16, VER(8)),
MKLINE(StringTab, color, sleInt8, VER(8)),
MKLINE(StringTab, _default.color, sleInt8, VER(8)),
MKLINE(StringTab, charset, sleInt8, VER(8)),
MKLINE(StringTab, _default.charset, sleInt8, VER(8)),
MKLINE(StringTab, center, sleByte, VER(8)),
MKLINE(StringTab, _default.center, sleByte, VER(8)),
MKLINE(StringTab, overhead, sleByte, VER(8)),
MKLINE(StringTab, _default.overhead, sleByte, VER(8)),
MKLINE(StringTab, no_talk_anim, sleByte, VER(8)),
MKLINE(StringTab, _default.no_talk_anim, sleByte, VER(8)),
MKEND()
};
const SaveLoadEntry colorCycleEntries[] = {
MKLINE(ColorCycle, delay, sleUint16, VER(8)),
MKLINE(ColorCycle, counter, sleUint16, VER(8)),
MKLINE(ColorCycle, flags, sleUint16, VER(8)),
MKLINE(ColorCycle, start, sleByte, VER(8)),
MKLINE(ColorCycle, end, sleByte, VER(8)),
MKEND()
};
const SaveLoadEntry scaleSlotsEntries[] = {
MKLINE(ScaleSlot, x1, sleUint16, VER(13)),
MKLINE(ScaleSlot, y1, sleUint16, VER(13)),
MKLINE(ScaleSlot, scale1, sleUint16, VER(13)),
MKLINE(ScaleSlot, x2, sleUint16, VER(13)),
MKLINE(ScaleSlot, y2, sleUint16, VER(13)),
MKLINE(ScaleSlot, scale2, sleUint16, VER(13)),
MKEND()
};
// MSVC6 FIX (Jamieson630):
// MSVC6 has a problem with any notation that involves
// more than one set of double colons ::
// The following MKLINE macros expand to such things
// as AudioCDManager::Status::playing, and MSVC6 has
// a fit with that. This typedef simplifies the notation
// to something MSVC6 can grasp.
typedef AudioCDManager::Status AudioCDManager_Status;
const SaveLoadEntry audioCDEntries[] = {
MKLINE(AudioCDManager_Status, playing, sleUint32, VER(24)),
MKLINE(AudioCDManager_Status, track, sleInt32, VER(24)),
MKLINE(AudioCDManager_Status, start, sleUint32, VER(24)),
MKLINE(AudioCDManager_Status, duration, sleUint32, VER(24)),
MKLINE(AudioCDManager_Status, numLoops, sleInt32, VER(24)),
MKEND()
};
int i, j;
int var120Backup;
int var98Backup;
uint8 md5Backup[16];
// MD5 Operations: Backup on load, compare, and reset.
if (s->isLoading())
memcpy(md5Backup, _gameMD5, 16);
//
// Save/load main state (many members of class ScummEngine get saved here)
//
s->saveLoadEntries(this, mainEntries);
// MD5 Operations: Backup on load, compare, and reset.
if (s->isLoading())
if (memcmp(md5Backup, _gameMD5, 16) != 0) {
warning("Game was saved with different gamedata - you may encounter problems.");
memcpy(_gameMD5, md5Backup, 16);
}
// Starting V14, we extended the usage bits, to be able to cope with games
// that have more than 30 actors (up to 94 are supported now, in theory).
// Since the format of the usage bits was changed by this, we have to
// convert them when loading an older savegame.
if (s->isLoading() && savegameVersion < VER(14))
upgradeGfxUsageBits();
// When loading, move the mouse to the saved mouse position.
if (s->isLoading() && savegameVersion >= VER(20)) {
updateCursor();
_system->warpMouse(_mouse.x, _mouse.y);
}
//
// Save/load actors
//
if (s->isLoading()) {
// Not all actor data is saved; so when loading, we first reset
// all actors, to ensure completely reproducible behaviour (else,
// some not saved value in the actor class can cause odd things)
for (i = 0; i < _numActors; i++)
_actors[i].initActor(-1);
}
s->saveLoadArrayOf(_actors, _numActors, sizeof(_actors[0]), actorEntries);
//
// Save/load sound data
//
s->saveLoadEntries(_sound, soundEntries);
//
// Save/load script data
//
if (savegameVersion < VER(9))
s->saveLoadArrayOf(vm.slot, 25, sizeof(vm.slot[0]), scriptSlotEntries);
else if (savegameVersion < VER(20))
s->saveLoadArrayOf(vm.slot, 40, sizeof(vm.slot[0]), scriptSlotEntries);
else
s->saveLoadArrayOf(vm.slot, NUM_SCRIPT_SLOT, sizeof(vm.slot[0]), scriptSlotEntries);
if (savegameVersion < VER(46)) {
// When loading an old savegame, make sure that the 'cycle'
// field is set to something sensible, otherwise the scripts
// that were running probably won't be.
for (i = 0; i < NUM_SCRIPT_SLOT; i++) {
vm.slot[i].cycle = 1;
}
}
//
// Save/load local objects
//
s->saveLoadArrayOf(_objs, _numLocalObjects, sizeof(_objs[0]), objectEntries);
if (s->isLoading() && savegameVersion < VER(13)) {
// Since roughly v13 of the save games, the objs storage has changed a bit
for (i = _numObjectsInRoom; i < _numLocalObjects; i++) {
_objs[i].obj_nr = 0;
}
}
//
// Save/load misc stuff
//
s->saveLoadArrayOf(_verbs, _numVerbs, sizeof(_verbs[0]), verbEntries);
s->saveLoadArrayOf(vm.nest, 16, sizeof(vm.nest[0]), nestedScriptEntries);
s->saveLoadArrayOf(_sentence, 6, sizeof(_sentence[0]), sentenceTabEntries);
s->saveLoadArrayOf(_string, 6, sizeof(_string[0]), stringTabEntries);
s->saveLoadArrayOf(_colorCycle, 16, sizeof(_colorCycle[0]), colorCycleEntries);
if (savegameVersion >= VER(13))
s->saveLoadArrayOf(_scaleSlots, 20, sizeof(_scaleSlots[0]), scaleSlotsEntries);
//
// Save/load resources
//
int type, idx;
if (savegameVersion >= VER(26)) {
// New, more robust resource save/load system. This stores the type
// and index of each resource. Thus if we increase e.g. the maximum
// number of script resources, savegames won't break.
if (s->isSaving()) {
for (type = rtFirst; type <= rtLast; type++) {
if (res.mode[type] != 1 && type != rtTemp && type != rtBuffer) {
s->saveUint16(type); // Save the res type...
for (idx = 0; idx < res.num[type]; idx++) {
// Only save resources which actually exist...
if (res.address[type][idx]) {
s->saveUint16(idx); // Save the index of the resource
saveResource(s, type, idx);
}
}
s->saveUint16(0xFFFF); // End marker
}
}
s->saveUint16(0xFFFF); // End marker
} else {
while ((type = s->loadUint16()) != 0xFFFF) {
while ((idx = s->loadUint16()) != 0xFFFF) {
assert(0 <= idx && idx < res.num[type]);
loadResource(s, type, idx);
}
}
}
} else {
// Old, fragile resource save/load system. Doesn't save resources
// with index 0, and breaks whenever we change the limit on a given
// resource type.
for (type = rtFirst; type <= rtLast; type++)
if (res.mode[type] != 1 && type != rtTemp && type != rtBuffer) {
// For V1-V5 games, there used to be no object name resources.
// At some point this changed. But since old savegames rely on
// unchanged resource counts, we have to hard code the following check
if (_version < 6 && type == rtObjectName)
continue;
for (idx = 1; idx < res.num[type]; idx++)
saveLoadResource(s, type, idx);
}
}
//
// Save/load global object state
//
s->saveLoadArrayOf(_objectOwnerTable, _numGlobalObjects, sizeof(_objectOwnerTable[0]), sleByte);
s->saveLoadArrayOf(_objectStateTable, _numGlobalObjects, sizeof(_objectStateTable[0]), sleByte);
if (_objectRoomTable)
s->saveLoadArrayOf(_objectRoomTable, _numGlobalObjects, sizeof(_objectRoomTable[0]), sleByte);
//
// Save/load palette data
//
if (_shadowPaletteSize) {
s->saveLoadArrayOf(_shadowPalette, _shadowPaletteSize, 1, sleByte);
// _roomPalette didn't show up until V21 save games
if (savegameVersion >= VER(21) && _version < 5)
s->saveLoadArrayOf(_roomPalette, sizeof(_roomPalette), 1, sleByte);
}
// PalManip data was not saved before V10 save games
if (savegameVersion < VER(10))
_palManipCounter = 0;
if (_palManipCounter) {
if (!_palManipPalette)
_palManipPalette = (byte *)calloc(0x300, 1);
if (!_palManipIntermediatePal)
_palManipIntermediatePal = (byte *)calloc(0x600, 1);
s->saveLoadArrayOf(_palManipPalette, 0x300, 1, sleByte);
s->saveLoadArrayOf(_palManipIntermediatePal, 0x600, 1, sleByte);
}
//
// Save/load more global object state
//
s->saveLoadArrayOf(_classData, _numGlobalObjects, sizeof(_classData[0]), sleUint32);
//
// Save/load script variables
//
var120Backup = _scummVars[120];
var98Backup = _scummVars[98];
if (savegameVersion > VER(37))
s->saveLoadArrayOf(_roomVars, _numRoomVariables, sizeof(_roomVars[0]), sleInt32);
// The variables grew from 16 to 32 bit.
if (savegameVersion < VER(15))
s->saveLoadArrayOf(_scummVars, _numVariables, sizeof(_scummVars[0]), sleInt16);
else
s->saveLoadArrayOf(_scummVars, _numVariables, sizeof(_scummVars[0]), sleInt32);
if (_gameId == GID_TENTACLE) // Maybe misplaced, but that's the main idea
_scummVars[120] = var120Backup;
if (_gameId == GID_INDY4)
_scummVars[98] = var98Backup;
s->saveLoadArrayOf(_bitVars, _numBitVariables >> 3, 1, sleByte);
//
// Save/load a list of the locked objects
//
if (s->isSaving()) {
for (i = rtFirst; i <= rtLast; i++)
for (j = 1; j < res.num[i]; j++) {
if (res.flags[i][j] & RF_LOCK) {
s->saveByte(i);
s->saveUint16(j);
}
}
s->saveByte(0xFF);
} else {
while ((i = s->loadByte()) != 0xFF) {
j = s->loadUint16();
res.flags[i][j] |= RF_LOCK;
}
}
//
// Save/load the Audio CD status
//
if (savegameVersion >= VER(24)) {
AudioCDManager::Status info;
if (s->isSaving())
info = AudioCD.getStatus();
s->saveLoadArrayOf(&info, 1, sizeof(info), audioCDEntries);
// If we are loading, and the music being loaded was supposed to loop
// forever, then resume playing it. This helps a lot when the audio CD
// is used to provide ambient music (see bug #788195).
if (s->isLoading() && info.playing && info.numLoops < 0)
AudioCD.play(info.track, info.numLoops, info.start, info.duration);
}
//
// Save/load the iMuse status
//
if (_imuse && (_saveSound || !_saveTemporaryState)) {
_imuse->save_or_load(s, this);
}
}
void ScummEngine_v5::saveOrLoad(Serializer *s, uint32 savegameVersion) {
ScummEngine::saveOrLoad(s, savegameVersion);
const SaveLoadEntry cursorEntries[] = {
MKARRAY2(ScummEngine_v5, _cursorImages[0][0], sleUint16, 16, 4, (byte*)_cursorImages[1] - (byte*)_cursorImages[0], VER(44)),
MKARRAY(ScummEngine_v5, _cursorHotspots[0], sleByte, 8, VER(44)),
MKEND()
};
// This is probably only needed for Loom.
s->saveLoadEntries(this, cursorEntries);
}
void ScummEngine_v7::saveOrLoad(Serializer *s, uint32 savegameVersion) {
ScummEngine::saveOrLoad(s, savegameVersion);
assert(_imuseDigital);
_imuseDigital->saveOrLoad(s);
}
void ScummEngine_v70he::saveOrLoad(Serializer *s, uint32 savegameVersion) {
ScummEngine::saveOrLoad(s, savegameVersion);
const SaveLoadEntry polygonEntries[] = {
MKLINE(WizPolygon, vert[0].x, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[0].y, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[1].x, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[1].y, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[2].x, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[2].y, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[3].x, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[3].y, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[4].x, sleInt16, VER(40)),
MKLINE(WizPolygon, vert[4].y, sleInt16, VER(40)),
MKLINE(WizPolygon, bound.left, sleInt16, VER(40)),
MKLINE(WizPolygon, bound.top, sleInt16, VER(40)),
MKLINE(WizPolygon, bound.right, sleInt16, VER(40)),
MKLINE(WizPolygon, bound.bottom, sleInt16, VER(40)),
MKLINE(WizPolygon, id, sleInt16, VER(40)),
MKLINE(WizPolygon, numVerts, sleInt16, VER(40)),
MKLINE(WizPolygon, flag, sleByte, VER(40)),
MKEND()
};
const SaveLoadEntry HE70Entries[] = {
MKLINE(ScummEngine_v70he, _heSndSoundId, sleInt32, VER(51)),
MKLINE(ScummEngine_v70he, _heSndOffset, sleInt32, VER(51)),
MKLINE(ScummEngine_v70he, _heSndChannel, sleInt32, VER(51)),
MKLINE(ScummEngine_v70he, _heSndFlags, sleInt32, VER(51)),
MKEND()
};
if (_heversion >= 71) {
s->saveLoadArrayOf(_wiz._polygons, ARRAYSIZE(_wiz._polygons), sizeof(_wiz._polygons[0]), polygonEntries);
}
s->saveLoadEntries(this, HE70Entries);
}
void ScummEngine_v90he::saveOrLoad(Serializer *s, uint32 savegameVersion) {
ScummEngine_v70he::saveOrLoad(s, savegameVersion);
const SaveLoadEntry floodStateEntries[] = {
MKLINE(FloodStateParameters, box.left, sleInt32, VER(51)),
MKLINE(FloodStateParameters, box.top, sleInt32, VER(51)),
MKLINE(FloodStateParameters, box.right, sleInt32, VER(51)),
MKLINE(FloodStateParameters, box.bottom, sleInt32, VER(51)),
MKLINE(FloodStateParameters, field_10, sleInt32, VER(51)),
MKLINE(FloodStateParameters, field_14, sleInt32, VER(51)),
MKLINE(FloodStateParameters, field_18, sleInt32, VER(51)),
MKLINE(FloodStateParameters, field_1C, sleInt32, VER(51)),
MKEND()
};
const SaveLoadEntry HE90Entries[] = {
MKLINE(ScummEngine_v90he, _curMaxSpriteId, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _curSpriteId, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _curSpriteGroupId, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _numSpritesToProcess, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _heObject, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _heObjectNum, sleInt32, VER(51)),
MKLINE(ScummEngine_v90he, _hePaletteNum, sleInt32, VER(51)),
MKEND()
};
saveOrLoadSpriteData(&*s, savegameVersion);
s->saveLoadArrayOf(&_floodStateParams, 1, sizeof(_floodStateParams), floodStateEntries);
s->saveLoadEntries(this, HE90Entries);
if (_heversion >= 99) {
s->saveLoadArrayOf(_hePalettes, _numPalettes, sizeof(_hePalettes[0]), sleUint8);
}
}
void ScummEngine_v100he::saveOrLoad(Serializer *s, uint32 savegameVersion) {
ScummEngine_v90he::saveOrLoad(s, savegameVersion);
const SaveLoadEntry HE100Entries[] = {
MKLINE(ScummEngine_v100he, _heResId, sleInt32, VER(51)),
MKLINE(ScummEngine_v100he, _heResType, sleInt32, VER(51)),
MKEND()
};
s->saveLoadEntries(this, HE100Entries);
}
void ScummEngine::saveLoadResource(Serializer *ser, int type, int idx) {
byte *ptr;
uint32 size;
if (!res.mode[type]) {
if (ser->isSaving()) {
ptr = res.address[type][idx];
if (ptr == NULL) {
ser->saveUint32(0);
return;
}
size = ((MemBlkHeader *)ptr)->size;
ser->saveUint32(size);
ser->saveBytes(ptr + sizeof(MemBlkHeader), size);
if (type == rtInventory) {
ser->saveUint16(_inventory[idx]);
}
if (type == rtObjectName && ser->getVersion() >= VER(25)) {
ser->saveUint16(_newNames[idx]);
}
} else {
size = ser->loadUint32();
if (size) {
res.createResource(type, idx, size);
ser->loadBytes(getResourceAddress(type, idx), size);
if (type == rtInventory) {
_inventory[idx] = ser->loadUint16();
}
if (type == rtObjectName && ser->getVersion() >= VER(25)) {
// Paranoia: We increased the possible number of new names
// to fix bugs #933610 and #936323. The savegame format
// didn't change, but at least during the transition
// period there is a slight chance that we try to load
// more names than we have allocated space for. If so,
// discard them.
if (idx < _numNewNames)
_newNames[idx] = ser->loadUint16();
}
}
}
} else if (res.mode[type] == 2 && ser->getVersion() >= VER(23)) {
// Save/load only a list of resource numbers that need reloaded.
if (ser->isSaving()) {
ser->saveUint16(res.address[type][idx] ? 1 : 0);
} else {
if (ser->loadUint16())
ensureResourceLoaded(type, idx);
}
}
}
void ScummEngine::saveResource(Serializer *ser, int type, int idx) {
assert(res.address[type][idx]);
if (res.mode[type] == 0) {
byte *ptr = res.address[type][idx];
uint32 size = ((MemBlkHeader *)ptr)->size;
ser->saveUint32(size);
ser->saveBytes(ptr + sizeof(MemBlkHeader), size);
if (type == rtInventory) {
ser->saveUint16(_inventory[idx]);
}
if (type == rtObjectName) {
ser->saveUint16(_newNames[idx]);
}
}
}
void ScummEngine::loadResource(Serializer *ser, int type, int idx) {
if (res.mode[type] == 0) {
uint32 size = ser->loadUint32();
assert(size);
res.createResource(type, idx, size);
ser->loadBytes(getResourceAddress(type, idx), size);
if (type == rtInventory) {
_inventory[idx] = ser->loadUint16();
}
if (type == rtObjectName) {
_newNames[idx] = ser->loadUint16();
}
} else if (res.mode[type] == 2) {
ensureResourceLoaded(type, idx);
}
}
void Serializer::saveBytes(void *b, int len) {
_saveStream->write(b, len);
}
void Serializer::loadBytes(void *b, int len) {
_loadStream->read(b, len);
}
void Serializer::saveUint32(uint32 d) {
_saveStream->writeUint32LE(d);
}
void Serializer::saveUint16(uint16 d) {
_saveStream->writeUint16LE(d);
}
void Serializer::saveByte(byte b) {
_saveStream->writeByte(b);
}
uint32 Serializer::loadUint32() {
return _loadStream->readUint32LE();
}
uint16 Serializer::loadUint16() {
return _loadStream->readUint16LE();
}
byte Serializer::loadByte() {
return _loadStream->readByte();
}
void Serializer::saveArrayOf(void *b, int len, int datasize, byte filetype) {
byte *at = (byte *)b;
uint32 data;
// speed up byte arrays
if (datasize == 1 && filetype == sleByte) {
saveBytes(b, len);
return;
}
while (--len >= 0) {
if (datasize == 0) {
// Do nothing for obsolete data
data = 0;
} else if (datasize == 1) {
data = *(byte *)at;
at += 1;
} else if (datasize == 2) {
data = *(uint16 *)at;
at += 2;
} else if (datasize == 4) {
data = *(uint32 *)at;
at += 4;
} else {
error("saveLoadArrayOf: invalid size %d", datasize);
}
switch (filetype) {
case sleByte:
saveByte((byte)data);
break;
case sleUint16:
case sleInt16:
saveUint16((int16)data);
break;
case sleInt32:
case sleUint32:
saveUint32(data);
break;
default:
error("saveLoadArrayOf: invalid filetype %d", filetype);
}
}
}
void Serializer::loadArrayOf(void *b, int len, int datasize, byte filetype) {
byte *at = (byte *)b;
uint32 data;
// speed up byte arrays
if (datasize == 1 && filetype == sleByte) {
loadBytes(b, len);
return;
}
while (--len >= 0) {
switch (filetype) {
case sleByte:
data = loadByte();
break;
case sleUint16:
data = loadUint16();
break;
case sleInt16:
data = (int16)loadUint16();
break;
case sleUint32:
data = loadUint32();
break;
case sleInt32:
data = (int32)loadUint32();
break;
default:
error("saveLoadArrayOf: invalid filetype %d", filetype);
}
if (datasize == 0) {
// Do nothing for obsolete data
} else if (datasize == 1) {
*(byte *)at = (byte)data;
at += 1;
} else if (datasize == 2) {
*(uint16 *)at = (uint16)data;
at += 2;
} else if (datasize == 4) {
*(uint32 *)at = data;
at += 4;
} else {
error("saveLoadArrayOf: invalid size %d", datasize);
}
}
}
void Serializer::saveLoadArrayOf(void *b, int num, int datasize, const SaveLoadEntry *sle) {
byte *data = (byte *)b;
if (isSaving()) {
while (--num >= 0) {
saveEntries(data, sle);
data += datasize;
}
} else {
while (--num >= 0) {
loadEntries(data, sle);
data += datasize;
}
}
}
void Serializer::saveLoadArrayOf(void *b, int len, int datasize, byte filetype) {
if (isSaving())
saveArrayOf(b, len, datasize, filetype);
else
loadArrayOf(b, len, datasize, filetype);
}
void Serializer::saveLoadEntries(void *d, const SaveLoadEntry *sle) {
if (isSaving())
saveEntries(d, sle);
else
loadEntries(d, sle);
}
void Serializer::saveEntries(void *d, const SaveLoadEntry *sle) {
byte type;
byte *at;
int size;
while (sle->offs != 0xFFFF) {
at = (byte *)d + sle->offs;
size = sle->size;
type = (byte) sle->type;
if (sle->maxVersion != CURRENT_VER) {
// Skip obsolete entries
if (type & 128)
sle++;
} else if (size == 0xFF) {
// save reference
void *ptr = *((void **)at);
saveUint16(ptr ? ((*_save_ref) (_ref_me, type, ptr) + 1) : 0);
} else {
// save entry
int columns = 1;
int rows = 1;
int rowlen = 0;
if (type & 128) {
sle++;
columns = sle->offs;
rows = sle->type;
rowlen = sle->size;
type &= ~128;
}
while (rows--) {
saveArrayOf(at, columns, size, type);
at += rowlen;
}
}
sle++;
}
}
void Serializer::loadEntries(void *d, const SaveLoadEntry *sle) {
byte type;
byte *at;
int size;
while (sle->offs != 0xFFFF) {
at = (byte *)d + sle->offs;
size = sle->size;
type = (byte) sle->type;
if (_savegameVersion < sle->minVersion || _savegameVersion > sle->maxVersion) {
// Skip entries which are not present in this save game version
if (type & 128)
sle++;
} else if (size == 0xFF) {
// load reference...
int num = loadUint16();
// ...but only use it if it's still there in CURRENT_VER
if (sle->maxVersion == CURRENT_VER)
*((void **)at) = num ? (*_load_ref) (_ref_me, type, num - 1) : NULL;
} else {
// load entry
int columns = 1;
int rows = 1;
int rowlen = 0;
if (type & 128) {
sle++;
columns = sle->offs;
rows = sle->type;
rowlen = sle->size;
type &= ~128;
}
while (rows--) {
loadArrayOf(at, columns, size, type);
at += rowlen;
}
}
sle++;
}
}
} // End of namespace Scumm
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