mirror of
https://github.com/libretro/scummvm.git
synced 2025-02-05 02:17:05 +00:00
00e59a3122
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.
468 lines
11 KiB
C++
468 lines
11 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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*
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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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*
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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 "base/plugins.h"
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#include "common/file.h"
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#include "common/translation.h"
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#include "engines/advancedDetector.h"
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#include "engines/savestate.h"
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#include "graphics/thumbnail.h"
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#include "drascula/drascula.h"
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namespace Drascula {
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struct DrasculaGameDescription {
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ADGameDescription desc;
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};
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uint32 DrasculaEngine::getFeatures() const {
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return _gameDescription->desc.flags;
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}
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Common::Language DrasculaEngine::getLanguage() const {
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return _gameDescription->desc.language;
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}
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void DrasculaEngine::loadArchives() {
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const ADGameFileDescription *ag;
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if (getFeatures() & GF_PACKED) {
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for (ag = _gameDescription->desc.filesDescriptions; ag->fileName; ag++) {
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if (!_archives.hasArchive(ag->fileName))
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_archives.registerArchive(ag->fileName, ag->fileType);
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}
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}
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_archives.enableFallback(true);
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}
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}
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static const PlainGameDescriptor drasculaGames[] = {
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{"drascula", "Drascula: The Vampire Strikes Back"},
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{0, 0}
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};
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namespace Drascula {
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static const DrasculaGameDescription gameDescriptions[] = {
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//// Packed versions //////////////////////////////////////////////////////
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{
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// Drascula English version (original packed files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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// HACK: List packet.001 twice to ensure this detector entry
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// is ranked just as high as the others (which each have two
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// detection files).
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{NULL, 0, NULL, 0}
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},
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Common::EN_ANY,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula French version (original packed files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.002", 1, "4401123400f22f212b89f15fb4b43013", 721122},
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{NULL, 0, NULL, 0}
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},
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Common::FR_FRA,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula French version (ScummVM repacked files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.002", 1, "7b83cedb9bb326ed5143e5c459508d43", 722383},
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{NULL, 0, NULL, 0}
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},
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Common::FR_FRA,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula German version (original packed files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.003", 1, "e8f4dc6091037329bab4ddb1cba35807", 719728},
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{NULL, 0, NULL, 0}
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},
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Common::DE_DEU,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Italian version (original packed version)
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{
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"drascula",
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0,
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AD_ENTRY1s("packet.001", "0253e924af223f5fe52537023385159b", 32564209),
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Common::IT_ITA,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Italian version (ScummVM repacked files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.005", 1, "58caac54b891f5d7f335e710e45e5d29", 16209623},
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{NULL, 0, NULL, 0}
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},
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Common::IT_ITA,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Spanish version (original packed version)
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{
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"drascula",
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0,
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AD_ENTRY1s("packet.001", "3c971aba65a037d29d0b479cad6f5943", 31702652),
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Common::ES_ESP,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Spanish version (ScummVM repacked files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.004", 1, "a289d3cf80d50f25ec569b653248437e", 17205838},
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{NULL, 0, NULL, 0}
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},
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Common::ES_ESP,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Russian version (ScummVM repacked files)
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{
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"drascula",
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0,
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{
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{"packet.001", 0, "c6a8697396e213a18472542d5f547cb4", 32847563},
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{"packet.006", 1, "e464b99de7f226391337510d5c328258", 697173},
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{NULL, 0, NULL, 0}
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},
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Common::RU_RUS,
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Common::kPlatformDOS,
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GF_PACKED,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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//// Unpacked versions ////////////////////////////////////////////////////
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{
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// Drascula English version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "09b2735953edcd43af115c65ae00b10e", 1595),
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Common::EN_ANY,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula French version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "eeeee96b82169003630e08992248296c", 608),
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Common::FR_FRA,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula French version (updated - bug #3612236)
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "1f9fbded768bee061cc22bc5bdeab540", 611),
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Common::FR_FRA,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula German version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "72e46089033d56bad1c179ac36e2a9d2", 610),
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Common::DE_DEU,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Italian version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "02b49a18328d0bf2efe6ba658c9c7a1d", 2098),
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Common::IT_ITA,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Italian version (updated - bug #3612236)
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "ccaee939bb3b344c048f28f9205710d1", 2925),
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Common::IT_ITA,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Spanish version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "0746ed1a5cc8d9728f790c29813f4b43", 23059),
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Common::ES_ESP,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{
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// Drascula Russian version
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{
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"drascula",
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0,
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AD_ENTRY1s("14.ald", "4dfab170eae935a2e9889196df427a4a", 1426),
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Common::RU_RUS,
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Common::kPlatformDOS,
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ADGF_NO_FLAGS,
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GUIO1(GUIO_LINKSPEECHTOSFX)
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},
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},
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{ AD_TABLE_END_MARKER }
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};
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static const ExtraGuiOption drasculaExtraGuiOption = {
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_s("Use original save/load screens"),
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_s("Use the original save/load screens instead of the ScummVM ones"),
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"originalsaveload",
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false
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};
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SaveStateDescriptor loadMetaData(Common::ReadStream *s, int slot, bool setPlayTime);
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class DrasculaMetaEngine : public AdvancedMetaEngine {
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public:
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DrasculaMetaEngine() : AdvancedMetaEngine(Drascula::gameDescriptions, sizeof(Drascula::DrasculaGameDescription), drasculaGames) {
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_singleId = "drascula";
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_guiOptions = GUIO1(GUIO_NOMIDI);
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}
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virtual const char *getName() const {
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return "Drascula";
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}
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virtual const char *getOriginalCopyright() const {
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return "Drascula Engine (C) 2000 Alcachofa Soft, (C) 1996 Digital Dreams Multimedia, (C) 1994 Emilio de Paz";
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}
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virtual bool createInstance(OSystem *syst, Engine **engine, const ADGameDescription *gd) const;
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virtual bool hasFeature(MetaEngineFeature f) const;
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virtual const ExtraGuiOptions getExtraGuiOptions(const Common::String &target) const;
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virtual SaveStateList listSaves(const char *target) const;
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virtual int getMaximumSaveSlot() const;
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virtual void removeSaveState(const char *target, int slot) const;
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SaveStateDescriptor querySaveMetaInfos(const char *target, int slot) const;
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};
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bool DrasculaMetaEngine::hasFeature(MetaEngineFeature f) const {
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return
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(f == kSupportsListSaves) ||
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(f == kSupportsLoadingDuringStartup) ||
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(f == kSupportsDeleteSave) ||
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(f == kSavesSupportMetaInfo) ||
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(f == kSavesSupportThumbnail) ||
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(f == kSavesSupportCreationDate) ||
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(f == kSavesSupportPlayTime) ||
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(f == kSimpleSavesNames);
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}
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const ExtraGuiOptions DrasculaMetaEngine::getExtraGuiOptions(const Common::String &target) const {
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ExtraGuiOptions options;
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options.push_back(drasculaExtraGuiOption);
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return options;
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}
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SaveStateList DrasculaMetaEngine::listSaves(const char *target) const {
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Common::SaveFileManager *saveFileMan = g_system->getSavefileManager();
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Common::StringArray filenames;
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Common::String pattern = target;
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pattern += ".###";
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filenames = saveFileMan->listSavefiles(pattern);
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SaveStateList saveList;
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int slotNum = 0;
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for (Common::StringArray::const_iterator file = filenames.begin(); file != filenames.end(); ++file) {
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// Obtain the last 3 digits of the filename, since they correspond to the save slot
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slotNum = atoi(file->c_str() + file->size() - 3);
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if (slotNum >= 0 && slotNum <= getMaximumSaveSlot()) {
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Common::InSaveFile *in = saveFileMan->openForLoading(*file);
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if (in) {
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SaveStateDescriptor desc = loadMetaData(in, slotNum, false);
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if (desc.getSaveSlot() != slotNum) {
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// invalid
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delete in;
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continue;
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}
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saveList.push_back(desc);
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delete in;
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}
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}
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}
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// Sort saves based on slot number.
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Common::sort(saveList.begin(), saveList.end(), SaveStateDescriptorSlotComparator());
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return saveList;
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}
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SaveStateDescriptor DrasculaMetaEngine::querySaveMetaInfos(const char *target, int slot) const {
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Common::String fileName = Common::String::format("%s.%03d", target, slot);
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Common::InSaveFile *in = g_system->getSavefileManager()->openForLoading(fileName);
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SaveStateDescriptor desc;
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// Do not allow save slot 0 (used for auto-saving) to be deleted or
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// overwritten.
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desc.setDeletableFlag(slot != 0);
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desc.setWriteProtectedFlag(slot == 0);
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if (in) {
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desc = Drascula::loadMetaData(in, slot, false);
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if (desc.getSaveSlot() != slot) {
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delete in;
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return SaveStateDescriptor();
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}
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Graphics::Surface *thumbnail;
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if (!Graphics::loadThumbnail(*in, thumbnail)) {
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delete in;
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return SaveStateDescriptor();
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}
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desc.setThumbnail(thumbnail);
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delete in;
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}
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return desc;
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}
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int DrasculaMetaEngine::getMaximumSaveSlot() const { return 999; }
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void DrasculaMetaEngine::removeSaveState(const char *target, int slot) const {
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Common::String fileName = Common::String::format("%s.%03d", target, slot);
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g_system->getSavefileManager()->removeSavefile(fileName);
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}
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bool DrasculaMetaEngine::createInstance(OSystem *syst, Engine **engine, const ADGameDescription *desc) const {
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const Drascula::DrasculaGameDescription *gd = (const Drascula::DrasculaGameDescription *)desc;
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if (gd) {
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*engine = new Drascula::DrasculaEngine(syst, gd);
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}
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return gd != 0;
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}
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} // End of namespace Drascula
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#if PLUGIN_ENABLED_DYNAMIC(DRASCULA)
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REGISTER_PLUGIN_DYNAMIC(DRASCULA, PLUGIN_TYPE_ENGINE, Drascula::DrasculaMetaEngine);
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#else
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REGISTER_PLUGIN_STATIC(DRASCULA, PLUGIN_TYPE_ENGINE, Drascula::DrasculaMetaEngine);
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#endif
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