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|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2004-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "common/stdafx.h"
#include "common/endian.h"
#include "base/plugins.h"
#include "common/config-manager.h"
#include "common/fs.h"
#include "common/md5.h"
#include "gob/gob.h"
#include "gob/global.h"
#include "gob/game.h"
#include "gob/sound.h"
#include "gob/init.h"
#include "gob/inter.h"
#include "gob/draw.h"
#include "gob/anim.h"
#include "gob/cdrom.h"
#include "gob/goblin.h"
#include "gob/map.h"
#include "gob/mult.h"
#include "gob/pack.h"
#include "gob/palanim.h"
#include "gob/parse.h"
#include "gob/scenery.h"
#include "gob/timer.h"
#include "gob/util.h"
#include "gob/music.h"
#include "sound/mididrv.h"
// Use the original saves. Just for testing purposes, will be removed later
// The new method is more convenient, and, more importantly, endian-safe
//#define GOB_ORIGSAVES
namespace Gob {
#define MAX_TIME_DELTA 100
GobEngine::GobEngine(OSystem *syst) : Engine(syst) {
// Setup mixer
if (!_mixer->isReady()) {
warning("Sound initialization failed.");
}
_mixer->setVolumeForSoundType(Audio::Mixer::kSFXSoundType, ConfMan.getInt("sfx_volume"));
_mixer->setVolumeForSoundType(Audio::Mixer::kMusicSoundType, ConfMan.getInt("music_volume"));
_copyProtection = ConfMan.getBool("copy_protection");
_quitRequested = false;
int i;
_saveFiles = new char*[3];
for (i = 0; i < 3; i++)
_saveFiles[i] = new char[_targetName.size() + 5];
sprintf(_saveFiles[0], "%s.cat", _targetName.c_str());
sprintf(_saveFiles[1], "%s.sav", _targetName.c_str());
sprintf(_saveFiles[2], "%s.blo", _targetName.c_str());
_saveSlotFile = new char[_targetName.size() + 5];
sprintf(_saveSlotFile, "%s.s00", _targetName.c_str());
memset(_saveIndex, 0, 600);
memset(_saveIndexSizes, 0, 600);
Common::addSpecialDebugLevel(kDebugFuncOp, "FuncOpcodes", "Script FuncOpcodes debug level");
Common::addSpecialDebugLevel(kDebugDrawOp, "DrawOpcodes", "Script DrawOpcodes debug level");
Common::addSpecialDebugLevel(kDebugGobOp, "GoblinOpcodes", "Script GoblinOpcodes debug level");
Common::addSpecialDebugLevel(kDebugMusic, "Music", "CD, Adlib and Infogrames music debug level");
Common::addSpecialDebugLevel(kDebugParser, "Parser", "Parser debug level");
Common::addSpecialDebugLevel(kDebugGameFlow, "Gameflow", "Gameflow debug level");
Common::addSpecialDebugLevel(kDebugFileIO, "FileIO", "File Input/Output debug level");
Common::addSpecialDebugLevel(kDebugGraphics, "Graphics", "Graphics debug level");
Common::addSpecialDebugLevel(kDebugCollisions, "Collisions", "Collisions debug level");
}
GobEngine::~GobEngine() {
delete _mult;
delete _game;
delete _snd;
delete _global;
delete _draw;
delete _anim;
delete _cdrom;
delete _dataio;
delete _goblin;
delete _init;
delete _inter;
delete _map;
delete _pack;
delete _palanim;
delete _parse;
delete _scenery;
delete _gtimer;
delete _util;
if (_adlib)
delete _adlib;
delete _video;
delete[] _startTot;
delete[] _startTot0;
int i;
for (i = 0; i < 3; i++)
delete[] _saveFiles[i];
delete[] _saveFiles;
delete[] _saveSlotFile;
}
int GobEngine::go() {
_init->initGame(0);
return 0;
}
void GobEngine::shutdown() {
_quitRequested = true;
}
// Seeking with SEEK_END (and therefore also pos()) doesn't work with
// gzip'd save files, so reading the whole thing in is necessary
uint32 GobEngine::getSaveSize(Common::InSaveFile &in) {
char buf[1024];
uint32 size;
uint32 i;
uint32 pos;
size = 0;
pos = in.pos();
in.seek(0, SEEK_SET);
while ((i = in.read(buf, 1024)) > 0)
size += i;
in.seek(0, pos);
return size;
}
int32 GobEngine::getSaveSize(enum SaveFiles sFile) {
int32 size;
Common::InSaveFile *in;
size = -1;
#ifndef GOB_ORIGSAVES
int i;
if (sFile == SAVE_CAT) {
for (i = 14; i >= 0; i--)
if ((in = _saveFileMan->openForLoading(getSaveSlotFile(i)))) {
size = (i + 1) * READ_LE_UINT32(_game->_totFileData + 0x2C) * 4 + 600;
delete in;
break;
}
debugC(1, kDebugFileIO, "Requested save games size: %d", size);
return size;
}
#endif // GOB_ORIGSAVES
if (sFile == SAVE_SAV)
size = _global->_savedBack == 0 ? -1 : _global->_savedBackSize;
else if ((in = _saveFileMan->openForLoading(_saveFiles[(int) sFile]))) {
size = getSaveSize(*in);
delete in;
}
debugC(1, kDebugFileIO, "Requested size of file \"%s\": %d", _saveFiles[(int) sFile], size);
return size;
}
const char *GobEngine::getSaveSlotFile(int slot) {
static char *slotBase = _saveSlotFile + strlen(_targetName.c_str()) + 2;
snprintf(slotBase, 3, "%02d", slot);
return _saveSlotFile;
}
void GobEngine::saveGameData(enum SaveFiles sFile, int16 dataVar, int32 size, int32 offset) {
int16 index;
bool writePal;
char *sName;
char *buf;
char *oBuf;
int32 retSize;
int32 iSize;
int32 oSize;
int32 oOff;
Video::SurfaceDesc *srcDesc;
Common::InSaveFile *in;
Common::OutSaveFile *out;
retSize = 0;
index = 0;
oBuf = 0;
in = 0;
writePal = false;
sName = _saveFiles[(int) sFile];
WRITE_VAR(1, 1);
if (sFile == SAVE_SAV) {
_global->_savedBackSize = -1;
if (size >= 0) {
warning("Invalid attempt at saving a sprite");
return;
}
if (size < -1000) {
size += 1000;
writePal = true;
memcpy((char *) _global->_savedPal, (char *) _global->_pPaletteDesc->vgaPal, 768);
}
index = -size - 1;
if ((index < 0) || (index >= 50)) {
warning("Invalid attempt at saving a sprite");
return;
}
srcDesc = _draw->_spritesArray[index];
if (_global->_savedBack)
_video->freeSurfDesc(_global->_savedBack);
_global->_savedBack =
_video->initSurfDesc(_vm->_global->_videoMode, srcDesc->width, srcDesc->height, 0);
_vm->_video->drawSprite(srcDesc, _global->_savedBack, 0, 0,
srcDesc->width - 1, srcDesc->height - 1, 0, 0, 0);
_global->_savedBackSize = _draw->getSpriteRectSize(index);
if (writePal)
_global->_savedBackSize += 768;
WRITE_VAR(1, 0);
return;
}
if (size < 0) {
warning("Invalid saving procedure");
return;
}
int32 varSize = READ_LE_UINT32(_game->_totFileData + 0x2C) * 4;
if (size == 0) {
dataVar = 0;
size = varSize;
}
buf = _global->_inter_variables + dataVar;
#ifndef GOB_ORIGSAVES
if (sFile == SAVE_CAT) {
if(saveGame((offset - 600) / varSize, dataVar, size, offset))
WRITE_VAR(1, 0);
return;
} else if (offset != 0) {
warning("Can't write file \"%s\": Can't correctly enfore endianness with offset", sName);
return;
}
#endif // GOB_ORIGSAVES
if ((in = _saveFileMan->openForLoading(sName)))
iSize = getSaveSize(*in);
else
iSize = 0;
oOff = offset < 0 ? MAX((int32) 0, iSize - (-offset - 1)) : offset;
oSize = MAX(iSize, oOff + size);
oBuf = new char[oSize];
memset(oBuf, 0, oSize);
if (in) {
in->read(oBuf, iSize);
delete in;
}
if(!(out = _saveFileMan->openForSaving(sName))) {
warning("Can't open file \"%s\" for writing", sName);
delete[] oBuf;
return;
}
retSize = writeDataEndian(*out, buf, _global->_inter_variablesSizes + dataVar, size);
out->flush();
if (out->ioFailed() || (retSize != size))
warning("Can't write file \"%s\"", sName);
else {
debugC(1, kDebugFileIO, "Saved file \"%s\" (%d, %d bytes at %d)",
sName, dataVar, size, offset);
WRITE_VAR(1, 0);
}
delete out;
delete[] oBuf;
}
bool GobEngine::saveGame(int saveSlot, int16 dataVar, int32 size, int32 offset) {
int32 varSize;
char *varBuf;
byte *sizeBuf;
Common::OutSaveFile *out;
varBuf = _global->_inter_variables + dataVar;
sizeBuf = _global->_inter_variablesSizes + dataVar;
varSize = READ_LE_UINT32(_game->_totFileData + 0x2C) * 4;
if ((offset == 0) && (size == 600)) {
memcpy(_saveIndex, varBuf, size);
memcpy(_saveIndexSizes, sizeBuf, size);
return true;
} else if((((offset - 600) % varSize) == 0) && (size == varSize)) {
if (!(out = _saveFileMan->openForSaving(getSaveSlotFile(saveSlot)))) {
warning("Can't open file \"%s\" for writing", getSaveSlotFile(saveSlot));
return false;
}
writeDataEndian(*out, _saveIndex + saveSlot * 40, _saveIndexSizes + saveSlot * 40, 40);
writeDataEndian(*out, varBuf, sizeBuf, size);
out->flush();
if (out->ioFailed()) {
warning("Can't save to slot %d", saveSlot);
return false;
}
debugC(1, kDebugFileIO, "Saved to slot %d", saveSlot);
delete out;
return true;
} else {
warning("Invalid saving procedure");
return false;
}
}
uint32 GobEngine::writeDataEndian(Common::OutSaveFile &out, char *varBuf, byte *sizeBuf,
int32 size) {
#ifndef GOB_ORIGSAVES
int i;
char tmp[4];
uint32 written;
written = 0;
for (i = 0; i < size; i++, varBuf++) {
if (sizeBuf[i] == 3)
WRITE_LE_UINT32(tmp, *((uint32 *) varBuf));
else if (sizeBuf[i] == 1)
WRITE_LE_UINT16(tmp, *((uint16 *) varBuf));
else if (sizeBuf[i] == 0)
*tmp = *varBuf;
else {
warning("Can't write data, corrupted variables sizes");
return 0;
}
written += out.write(tmp, sizeBuf[i] + 1);
varBuf += sizeBuf[i];
i += sizeBuf[i];
}
out.write(sizeBuf, size);
return written;
#else // GOB_ORIGSAVES
return out.write(varBuf, size);
#endif // GOB_ORIGSAVES
}
void GobEngine::loadGameData(enum SaveFiles sFile, int16 dataVar, int32 size, int32 offset) {
int32 sSize;
int32 retSize;
int16 index;
char *buf;
char *sName;
bool readPal;
Video::SurfaceDesc *destDesc;
Common::InSaveFile *in;
index = 0;
readPal = false;
sName = _saveFiles[(int) sFile];
WRITE_VAR(1, 1);
if (sFile == SAVE_SAV) {
if (size >= 0) {
warning("Invalid attempt at loading a sprite");
return;
}
if (size < -1000) {
size += 1000;
readPal = true;
memcpy((char *) _global->_pPaletteDesc->vgaPal, (char *) _global->_savedPal, 768);
}
index = -size - 1;
if ((index < 0) || (index >= 50)) {
warning("Invalid attempt at loading a sprite");
return;
}
destDesc = _draw->_spritesArray[index];
if ((destDesc->width != _global->_savedBack->width) ||
(destDesc->height != _global->_savedBack->height)) {
warning("Resolution doesn't match while loading a sprite");
return;
}
_vm->_video->drawSprite(_global->_savedBack, destDesc, 0, 0,
destDesc->width - 1, destDesc->height - 1, 0, 0, 0);
if (index == 21) {
_video->drawSprite(_draw->_backSurface, _draw->_frontSurface, 0, 0,
_draw->_frontSurface->width - 1, _draw->_frontSurface->height - 1, 0, 0, 0);
_video->waitRetrace(_global->_videoMode);
}
WRITE_VAR(1, 0);
return;
}
if (size < 0) {
warning("Invalid loading procedure");
return;
}
int32 varSize;
varSize = READ_LE_UINT32(_game->_totFileData + 0x2C) * 4;
if (size == 0) {
dataVar = 0;
size = varSize;
}
buf = _global->_inter_variables + dataVar;
#ifndef GOB_ORIGSAVES
if (sFile == SAVE_CAT) {
if(loadGame((offset - 600) / varSize, dataVar, size, offset))
WRITE_VAR(1, 0);
return;
} else if (offset != 0) {
warning("Can't read file \"%s\": Can't correctly enfore endianness with offset", sName);
return;
}
#endif // GOB_ORIGSAVES
if (_global->_inter_resStr[0] == 0) {
WRITE_VAR(1, size);
return;
}
if(!(in = _saveFileMan->openForLoading(sName))) {
warning("Can't open file \"%s\" for reading", sName);
return;
}
debugC(1, kDebugFileIO, "Loading file \"%s\" (%d, %d bytes at %d)",
sName, dataVar, size, offset);
sSize = getSaveSize(*in);
_draw->animateCursor(4);
if (offset < 0)
in->seek(sSize - (-offset - 1), 0);
else
in->seek(offset, 0);
retSize = readDataEndian(*in, buf, _global->_inter_variablesSizes + dataVar, size);
if (retSize == size)
WRITE_VAR(1, 0);
delete in;
return;
}
bool GobEngine::loadGame(int saveSlot, int16 dataVar, int32 size, int32 offset) {
int i;
int32 varSize;
char *varBuf;
byte *sizeBuf;
Common::InSaveFile *in;
varBuf = _global->_inter_variables + dataVar;
sizeBuf = _global->_inter_variablesSizes + dataVar;
varSize = READ_LE_UINT32(_game->_totFileData + 0x2C) * 4;
if ((offset == 0) && (size == 600)) {
for (i = 0; i < 15; i++, varBuf += 40) {
if ((in = _saveFileMan->openForLoading(getSaveSlotFile(i)))) {
in->read(varBuf, 40);
delete in;
} else
memset(varBuf, 0, 40);
}
return true;
} else if((((offset - 600) % varSize) == 0) && (size == varSize)) {
if (!(in = _saveFileMan->openForLoading(getSaveSlotFile(saveSlot)))) {
warning("Can't load from slot %d", saveSlot);
return false;
}
if (((getSaveSize(*in) / 2) - 40) != (uint32) varSize) {
warning("Can't load from slot %d: Wrong size", saveSlot);
return false;
}
in->seek(80);
readDataEndian(*in, varBuf, sizeBuf, size);
delete in;
debugC(1, kDebugFileIO, "Loading from slot %d", saveSlot);
return true;
} else {
warning("Invalid loading procedure");
return false;
}
}
uint32 GobEngine::readDataEndian(Common::InSaveFile &in, char *varBuf, byte *sizeBuf,
int32 size) {
#ifndef GOB_ORIGSAVES
uint32 read;
char *vars;
char *sizes;
int i;
vars = new char[size];
sizes = new char[size];
read = in.read(vars, size);
if (in.read(sizes, size) != read) {
warning("Can't read data: Corrupted variables sizes");
delete[] vars;
delete[] sizes;
return 0;
}
for (i = 0; i < size; i++) {
if (sizes[i] == 3)
*((uint32 *) (vars + i)) = READ_LE_UINT32(vars + i);
else if (sizes[i] == 1)
*((uint16 *) (vars + i)) = READ_LE_UINT16(vars + i);
else if (sizes[i] != 0) {
warning("Can't read data: Corrupted variables sizes");
return 0;
}
i += sizes[i];
}
memcpy(varBuf, vars, size);
memcpy(sizeBuf, sizes, size);
delete[] vars;
delete[] sizes;
return read;
#else // GOB_ORIGSAVES
return in.read(varBuf, size);
#endif // GOB_ORIGSAVES
}
int GobEngine::init() {
// Detect game
if (!detectGame()) {
GUIErrorMessage("No valid games were found in the specified directory.");
return -1;
}
_adlib = 0;
_snd = new Snd(this);
_global = new Global(this);
_anim = new Anim();
_cdrom = new CDROM(this);
_dataio = new DataIO(this);
_pack = new Pack();
_palanim = new PalAnim(this);
_gtimer = new GTimer();
_util = new Util(this);
if (_features & Gob::GF_GOB1) {
_inter = new Inter_v1(this);
_parse = new Parse_v1(this);
_mult = new Mult_v1(this);
_draw = new Draw_v1(this);
_game = new Game_v1(this);
_video = new Video_v1(this);
_init = new Init_v1(this);
_map = new Map_v1(this);
_goblin = new Goblin_v1(this);
_scenery = new Scenery_v1(this);
}
else if (_features & Gob::GF_GOB2) {
_inter = new Inter_v2(this);
_parse = new Parse_v2(this);
_mult = new Mult_v2(this);
_draw = new Draw_v2(this);
_game = new Game_v2(this);
_video = new Video_v2(this);
_init = new Init_v2(this);
_map = new Map_v2(this);
_goblin = new Goblin_v2(this);
_scenery = new Scenery_v2(this);
}
else if (_features & Gob::GF_BARGON) {
_inter = new Inter_Bargon(this);
_parse = new Parse_v2(this);
_mult = new Mult_v2(this);
_draw = new Draw_Bargon(this);
_game = new Game_v2(this);
_video = new Video_v2(this);
_init = new Init_v2(this);
_map = new Map_v2(this);
_goblin = new Goblin_v2(this);
_scenery = new Scenery_v2(this);
}
else
error("GobEngine::init(): Unknown version of game engine");
_noMusic = MidiDriver::parseMusicDriver(ConfMan.get("music_driver")) == MD_NULL;
if (!_noMusic && !(_platform == Common::kPlatformAmiga) &&
(((_platform == Common::kPlatformMacintosh) && (_features & Gob::GF_GOB1)) ||
(_features & Gob::GF_GOB2)))
_adlib = new Adlib(this);
_vm = this;
_system->beginGFXTransaction();
initCommonGFX(false);
_system->initSize(320, 200);
_system->endGFXTransaction();
// On some systems it's not safe to run CD audio games from the CD.
if (_features & GF_CD)
checkCD();
int cd_num = ConfMan.getInt("cdrom");
if (cd_num >= 0)
_system->openCD(cd_num);
_global->_debugFlag = 1;
_global->_doRangeClamp = 1;
// WORKAROUND: Some Amiga versions only play music when the video mode is
// Amiga-ish
_global->_fakeVideoMode = (_platform == Common::kPlatformAmiga) ? 0x11 : 0x13;
_global->_videoMode = 0x13;
_global->_useMouse = 1;
_global->_soundFlags = MIDI_FLAG | SPEAKER_FLAG | BLASTER_FLAG | ADLIB_FLAG;
if (ConfMan.hasKey("language"))
_language = Common::parseLanguage(ConfMan.get("language"));
switch (_language) {
case Common::FR_FRA:
case Common::RU_RUS:
_global->_language = 0;
break;
case Common::DE_DEU:
_global->_language = 1;
break;
case Common::EN_ANY:
case Common::EN_GRB:
_global->_language = 2;
break;
case Common::ES_ESP:
_global->_language = 3;
break;
case Common::IT_ITA:
_global->_language = 4;
break;
case Common::EN_USA:
_global->_language = 5;
break;
case Common::NL_NLD:
_global->_language = 6;
break;
case Common::KO_KOR:
_global->_language = 7;
break;
case Common::HB_ISR:
_global->_language = 8;
break;
default:
// Default to English
_global->_language = 2;
break;
}
// FIXME: This is the ugly way of reducing redraw overhead. It works
// well for 320x200 but it's unclear how well it will work for
// 640x480.
g_system->setFeatureState(OSystem::kFeatureAutoComputeDirtyRects, true);
return 0;
}
} // End of namespace Gob
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