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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.
*
* $URL$
* $Id$
*
*/
#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
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