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123 lines
2.9 KiB
C++
123 lines
2.9 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef ASYLUM_RESPACK_H
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#define ASYLUM_RESPACK_H
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#include "common/array.h"
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#include "common/file.h"
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#include "common/hashmap.h"
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#include "asylum/asylum.h"
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#include "asylum/shared.h"
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namespace Asylum {
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class ResourceManager;
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struct ResourceEntry {
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byte *data;
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uint32 size;
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uint32 offset;
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ResourceEntry() {
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data = NULL;
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size = 0;
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offset = 0;
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}
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uint32 getData(uint32 off) {
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if (data == NULL)
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error("[ResourceEntry::getData] Invalid data");
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return READ_LE_UINT32(data + off);
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}
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};
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class ResourcePack {
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public:
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ResourceEntry *get(uint16 index);
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protected:
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ResourcePack(const Common::String &filename);
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~ResourcePack();
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private:
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Common::Array<ResourceEntry> _resources;
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Common::File _packFile;
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void init(const Common::String &filename);
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friend class ResourceManager;
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};
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class ResourceManager {
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public:
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ResourceManager(AsylumEngine *vm);
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~ResourceManager();
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/**
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* Get a resource entry
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*
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* @param id The ResourceId to get.
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*
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* @return the resource entry
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*/
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ResourceEntry *get(ResourceId id);
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/**
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* Unloads the resources associated with the id
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*
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* @param id The identifier.
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*/
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void unload(ResourcePackId id);
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//int count(ResourceId id);
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int getCdNumber() { return _cdNumber; }
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void setCdNumber(int cdNumber) { _cdNumber = cdNumber; }
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void setMusicPackId(ResourcePackId id) { _musicPackId = id; }
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void clearSharedSoundCache() { _resources.erase(kResourcePackSharedSound); }
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void clearMusicCache() { _music.erase(kResourcePackMusic); }
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private:
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struct ResourcePackId_EqualTo {
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bool operator()(const ResourcePackId &x, const ResourcePackId &y) const { return x == y; }
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};
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struct ResourcePackId_Hash {
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uint operator()(const ResourcePackId &x) const { return x; }
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};
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typedef Common::HashMap<ResourcePackId, ResourcePack *, ResourcePackId_Hash, ResourcePackId_EqualTo> ResourceCache;
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ResourceCache _resources;
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ResourceCache _music;
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int _cdNumber;
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ResourcePackId _musicPackId;
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AsylumEngine *_vm;
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};
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} // end of namespace Asylum
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#endif // ASYLUM_RESPACK_H
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