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Diffstat (limited to 'engines/m4/resource.h')
-rw-r--r-- | engines/m4/resource.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/engines/m4/resource.h b/engines/m4/resource.h new file mode 100644 index 0000000000..dc099f2304 --- /dev/null +++ b/engines/m4/resource.h @@ -0,0 +1,141 @@ +/* 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. + * + * $URL$ + * $Id$ + * + */ + +#ifndef M4_RESOURCE_H +#define M4_RESOURCE_H + +#include "common/scummsys.h" +#include "common/stream.h" +#include "common/endian.h" +#include "common/file.h" +#include "common/hashmap.h" +#include "common/hash-str.h" +#include "common/list.h" +#include "common/ptr.h" + +/* + TODO: + - change array to HashMap if it turns out to be slow +*/ + +namespace M4 { + +#define MAX_RESOURCES 128 +#define kM4MaxFilenameSize 33 + +enum { + kResourcePurge = 1 << 1 +}; + + +class FileSystem { +public: + struct HashHagEntry { + char filename[kM4MaxFilenameSize]; + byte fileIndex; + Common::File *hagFile; + }; + + struct HashFileEntry { + char filename[kM4MaxFilenameSize]; + byte hagfile; + uint32 offset, size; + }; + + FileSystem(const char *hashFilename); + ~FileSystem(); + + Common::SeekableReadStream *loadFile(const char *resourceName, bool preloadFlag); + static void changeExtension(char *destName, const char *sourceName, const char *extension); + const HashFileEntry *getHashFileEntry(const char *filename); + +private: + typedef Common::HashMap<Common::String,HashFileEntry,Common::IgnoreCase_Hash,Common::IgnoreCase_EqualTo> FileHashMap; + + HashHagEntry _hagEntries[10]; // GLOBAL.HAG and SECTION1.HAG to SECTION9.HAG + FileHashMap _fileEntries; +}; + +struct Resource { + char name[64]; + Common::SeekableReadStream *stream; + uint8 *buffer; + uint8 flags; +}; + +class ResourceManager { +protected: + typedef Common::List<Common::SharedPtr<Resource> > ResourceList; + typedef ResourceList::iterator ResourceIterator; + ResourceList _resources; + M4Engine *_vm; + + virtual Common::SeekableReadStream *loadResource(const char *resourceName, bool loadFlag) = 0; +public: + ResourceManager(M4Engine *vm): _vm(vm) {}; + virtual ~ResourceManager(); + + Common::SeekableReadStream *get(const char *resourceName, bool loadFlag = true); + void toss(const char *resourceName); + void purge(); + void dump(); + virtual bool resourceExists(const char *resourceName) = 0; + + Common::SeekableReadStream *openFile(const char *resourceName) { return get(resourceName, false); } + void changeExtension(char *destName, const char *sourceName, const char *extension) { + FileSystem::changeExtension(destName, sourceName, extension); + } +}; + +enum ResourceType {RESTYPE_ROOM, RESTYPE_SC, RESTYPE_TEXT, RESTYPE_QUO, RESTYPE_I, + RESTYPE_OB, RESTYPE_FONT, RESTYPE_SOUND, RESTYPE_SPEECH, RESTYPE_HAS_EXT, RESTYPE_NO_EXT}; + +class MADSResourceManager: public ResourceManager { +private: + ResourceType getResourceType(const char *resourceName); + const char *getResourceFilename(const char *resourceName); +protected: + Common::SeekableReadStream *loadResource(const char *resourceName, bool loadFlag); +public: + MADSResourceManager(M4Engine *vm): ResourceManager(vm) {}; + bool resourceExists(const char *resourceName); +}; + +class M4ResourceManager: public ResourceManager { +protected: + Common::SeekableReadStream *loadResource(const char *resourceName, bool loadFlag); +public: + M4ResourceManager(M4Engine *vm); + ~M4ResourceManager(); + bool resourceExists(const char *resourceName); + +private: + FileSystem *_hfs; +}; + +} // End of namespace M4 + + +#endif |