scummvm/engines/cruise/detection.cpp

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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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.
*
*/
#include "base/plugins.h"
#include "common/savefile.h"
#include "common/system.h"
#include "engines/advancedDetector.h"
#include "cruise/cruise.h"
#include "cruise/saveload.h"
namespace Cruise {
struct CRUISEGameDescription {
ADGameDescription desc;
};
const char *CruiseEngine::getGameId() const {
return _gameDescription->desc.gameId;
}
Common::Language CruiseEngine::getLanguage() const {
return _gameDescription->desc.language;
}
Common::Platform CruiseEngine::getPlatform() const {
return _gameDescription->desc.platform;
}
}
static const PlainGameDescriptor cruiseGames[] = {
{"cruise", "Cinematique evo.2 engine game"},
{"cruise", "Cruise for a Corpse"},
{0, 0}
};
namespace Cruise {
static const CRUISEGameDescription gameDescriptions[] = {
{
{
"cruise",
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"16 colors",
AD_ENTRY1("D1", "cd29a4cd9162076e9a18495fe56a48f3"),
Common::EN_GRB,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"16 colors",
AD_ENTRY1("D1", "41a7a4d426dbd048eb369cfee4bb2717"),
Common::FR_FRA,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"256 colors",
AD_ENTRY1("D1", "a90d2b9ead6b4d812cd14268672cf178"),
Common::EN_ANY,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"256 colors",
AD_ENTRY1("D1", "e258865807ea31b2d523340e6f0a606b"),
Common::FR_FRA,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"16 colors",
AD_ENTRY1("D1", "287d2ec1799e2f881dee23c70be96e81"),
Common::DE_DEU,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"256 colors",
AD_ENTRY1("D1", "f2a26522d49983c4ae32bcccbb801b02"),
Common::DE_DEU,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
0,
AD_ENTRY1("D1", "70f42a21cc257b01d58667853335f4f1"),
Common::DE_DEU,
Common::kPlatformAmiga,
ADGF_NO_FLAGS,
GUIO0()
},
},
{ // Amiga English US GOLD edition.
{
"cruise",
0,
AD_ENTRY1("D1", "de084e9d2c6e4b2cc14803bf849eda3e"),
Common::EN_ANY,
Common::kPlatformAmiga,
ADGF_NO_FLAGS,
GUIO0()
},
},
{ // Amiga Italian US GOLD edition.
{
"cruise",
0,
AD_ENTRY1("D1", "a0011075413b7335e003e8e3c9cf51b9"),
Common::IT_ITA,
Common::kPlatformAmiga,
ADGF_NO_FLAGS,
GUIO0()
},
},
{ // AtariST English KixxXL edition.
{
"cruise",
0,
AD_ENTRY1("D1", "be78614d5fa34bdb68bb03a2a6130280"),
Common::EN_ANY,
Common::kPlatformAtariST,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"256 colors",
AD_ENTRY1("D1", "e19a4ab2e24a69087e4ea994a5506231"),
Common::IT_ITA,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{
{
"cruise",
"256 colors",
AD_ENTRY1("D1", "9a302ada55600d96061fda1d63a6ccda"),
Common::ES_ESP,
Common::kPlatformDOS,
ADGF_NO_FLAGS,
GUIO0()
},
},
{AD_TABLE_END_MARKER}
};
}
class CruiseMetaEngine : public AdvancedMetaEngine {
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public:
CruiseMetaEngine() : AdvancedMetaEngine(Cruise::gameDescriptions, sizeof(Cruise::CRUISEGameDescription), cruiseGames) {
_singleId = "cruise";
_guiOptions = GUIO2(GUIO_NOSPEECH, GUIO_NOMIDI);
}
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virtual const char *getName() const {
return "Cinematique evo 2";
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}
virtual const char *getOriginalCopyright() const {
return "Cinematique evo 2 (C) Delphine Software";
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}
virtual bool hasFeature(MetaEngineFeature f) const;
virtual int getMaximumSaveSlot() const { return 99; }
virtual SaveStateList listSaves(const char *target) const;
virtual void removeSaveState(const char *target, int slot) const;
virtual SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const;
};
bool CruiseMetaEngine::hasFeature(MetaEngineFeature f) const {
return
(f == kSupportsListSaves) ||
(f == kSupportsDeleteSave) ||
(f == kSavesSupportMetaInfo) ||
(f == kSavesSupportThumbnail) ||
(f == kSupportsLoadingDuringStartup);
}
SaveStateList CruiseMetaEngine::listSaves(const char *target) const {
Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
Common::StringArray filenames;
Common::String pattern("cruise.s##");
filenames = saveFileMan->listSavefiles(pattern);
SaveStateList saveList;
for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
// Obtain the last 2 digits of the filename, since they correspond to the save slot
int slotNum = atoi(file->c_str() + file->size() - 2);
if (slotNum >= 0 && slotNum <= 99) {
Common::InSaveFile *in = saveFileMan->openForLoading(*file);
if (in) {
Cruise::CruiseSavegameHeader header;
ALL: Load savegame thumbnail only when necessary This commit introduces the following changes: 1. Graphics::loadThumbnail() Now returns a boolean and takes a new argument skipThumbnail which defaults to false. In case of true, loadThumbnail() reads past the thumbnail data in the input stream instead of actually loading the thumbnail. This simplifies savegame handling where, up until now, many engines always read the whole savegame metadata (including the thumbnail) and then threw away the thumbnail when not needed (which is in almost all cases, the most common exception being MetaEngine::querySaveMetaInfos() which is responsible for loading savegame metadata for displaying it in the GUI launcher. 2. readSavegameHeader() Engines which already implement such a method (name varies) now take a new argument skipThumbnail (default: true) which is passed through to loadThumbnail(). This means that the default case for readSavegameHeader() is now _not_ loading the thumbnail from a savegame and just reading past it. In those cases, e.g. querySaveMetaInfos(), where we actually are interested in loading the thumbnail readSavegameHeader() needs to explicitely be called with skipThumbnail == false. Engines whose readSavegameHeader() (name varies) already takes an argument loadThumbnail have been adapted to have a similar prototype and semantics. I.e. readSaveHeader(in, loadThumbnail, header) now is readSaveHeader(in, header, skipThumbnail). 3. Error handling Engines which previously did not check the return value of readSavegameHeader() (name varies) now do so ensuring that possibly broken savegames (be it a broken thumbnail or something else) don't make it into the GUI launcher list in the first place.
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if (Cruise::readSavegameHeader(in, header))
saveList.push_back(SaveStateDescriptor(slotNum, header.saveName));
delete in;
}
}
}
// Sort saves based on slot number.
Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
return saveList;
}
void CruiseMetaEngine::removeSaveState(const char *target, int slot) const {
g_system->getSavefileManager()->removeSavefile(Cruise::CruiseEngine::getSavegameFile(slot));
}
SaveStateDescriptor CruiseMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
Common::InSaveFile *f = g_system->getSavefileManager()->openForLoading(
Cruise::CruiseEngine::getSavegameFile(slot));
if (f) {
Cruise::CruiseSavegameHeader header;
ALL: Load savegame thumbnail only when necessary This commit introduces the following changes: 1. Graphics::loadThumbnail() Now returns a boolean and takes a new argument skipThumbnail which defaults to false. In case of true, loadThumbnail() reads past the thumbnail data in the input stream instead of actually loading the thumbnail. This simplifies savegame handling where, up until now, many engines always read the whole savegame metadata (including the thumbnail) and then threw away the thumbnail when not needed (which is in almost all cases, the most common exception being MetaEngine::querySaveMetaInfos() which is responsible for loading savegame metadata for displaying it in the GUI launcher. 2. readSavegameHeader() Engines which already implement such a method (name varies) now take a new argument skipThumbnail (default: true) which is passed through to loadThumbnail(). This means that the default case for readSavegameHeader() is now _not_ loading the thumbnail from a savegame and just reading past it. In those cases, e.g. querySaveMetaInfos(), where we actually are interested in loading the thumbnail readSavegameHeader() needs to explicitely be called with skipThumbnail == false. Engines whose readSavegameHeader() (name varies) already takes an argument loadThumbnail have been adapted to have a similar prototype and semantics. I.e. readSaveHeader(in, loadThumbnail, header) now is readSaveHeader(in, header, skipThumbnail). 3. Error handling Engines which previously did not check the return value of readSavegameHeader() (name varies) now do so ensuring that possibly broken savegames (be it a broken thumbnail or something else) don't make it into the GUI launcher list in the first place.
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if (!Cruise::readSavegameHeader(f, header, false)) {
delete f;
return SaveStateDescriptor();
}
delete f;
// Create the return descriptor
SaveStateDescriptor desc(slot, header.saveName);
desc.setThumbnail(header.thumbnail);
return desc;
}
return SaveStateDescriptor();
}
bool CruiseMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
const Cruise::CRUISEGameDescription *gd = (const Cruise::CRUISEGameDescription *)desc;
if (gd) {
*engine = new Cruise::CruiseEngine(syst, gd);
}
return gd != 0;
}
#if PLUGIN_ENABLED_DYNAMIC(CRUISE)
REGISTER_PLUGIN_DYNAMIC(CRUISE, PLUGIN_TYPE_ENGINE, CruiseMetaEngine);
#else
REGISTER_PLUGIN_STATIC(CRUISE, PLUGIN_TYPE_ENGINE, CruiseMetaEngine);
#endif