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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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ASYLUM_RESPACK_H
#define ASYLUM_RESPACK_H
#include "common/array.h"
#include "common/file.h"
#include "common/hashmap.h"
#include "asylum/asylum.h"
#include "asylum/shared.h"
namespace Asylum {
class ResourceManager;
struct ResourceEntry {
byte *data;
uint32 size;
uint32 offset;
ResourceEntry() {
data = NULL;
size = 0;
offset = 0;
}
uint32 getData(uint32 off) {
if (data == NULL)
error("[ResourceEntry::getData] Invalid data");
return READ_LE_UINT32(data + off);
}
};
class ResourcePack {
public:
ResourceEntry *get(uint16 index);
protected:
ResourcePack(const Common::Path &filename);
~ResourcePack();
private:
Common::Array<ResourceEntry> _resources;
Common::File _packFile;
void init(const Common::Path &filename);
friend class ResourceManager;
};
class ResourceManager {
public:
ResourceManager(AsylumEngine *vm);
~ResourceManager();
/**
* Get a resource entry
*
* @param id The ResourceId to get.
*
* @return the resource entry
*/
ResourceEntry *get(ResourceId id);
/**
* Unloads the resources associated with the id
*
* @param id The identifier.
*/
void unload(ResourcePackId id);
//int count(ResourceId id);
int getCdNumber() { return _cdNumber; }
void setCdNumber(int cdNumber) { _cdNumber = cdNumber; }
void setMusicPackId(ResourcePackId id) { _musicPackId = id; }
void clearSharedSoundCache() { _resources.erase(kResourcePackSharedSound); }
void clearMusicCache() { _music.erase(kResourcePackMusic); }
private:
struct ResourcePackId_EqualTo {
bool operator()(const ResourcePackId &x, const ResourcePackId &y) const { return x == y; }
};
struct ResourcePackId_Hash {
uint operator()(const ResourcePackId &x) const { return x; }
};
typedef Common::HashMap<ResourcePackId, ResourcePack *, ResourcePackId_Hash, ResourcePackId_EqualTo> ResourceCache;
ResourceCache _resources;
ResourceCache _music;
int _cdNumber;
ResourcePackId _musicPackId;
AsylumEngine *_vm;
};
} // end of namespace Asylum
#endif // ASYLUM_RESPACK_H
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