resource.h

/* 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 QUEEN_RESOURCE_H
#define QUEEN_RESOURCE_H
 
#include "common/file.h"
#include "common/str-array.h"
#include "common/language.h"
#include "common/platform.h"
#include "queen/defs.h"
#include "queen/version.h"
 
namespace Queen {
 
struct ResourceEntry {
    char filename[13];
    uint8 bundle;
    uint32 offset;
    uint32 size;
};
 
class Resource {
public:
 
    Resource();
    ~Resource();
 
    uint8 *loadFile(const char *filename, uint32 skipBytes = 0, uint32 *size = NULL);
 
    void loadTextFile(const char *filename, Common::StringArray &stringList);
 
    bool fileExists(const char *filename) const { return resourceEntry(filename) != NULL; }
 
    Common::File *findSound(const char *filename, uint32 *size);
 
    bool isDemo() const { return (_version.features & GF_DEMO) != 0; }
    bool isInterview() const { return (_version.features & GF_INTERVIEW) != 0; }
    bool isFloppy() const { return (_version.features & GF_FLOPPY) != 0; }
    bool isCD() const { return (_version.features & GF_TALKIE) != 0; }
 
    uint8 getCompression() const { return _version.compression; }
 
    const char *getJASVersion() const { return _version.str; }
 
    Common::Language getLanguage() const { return _version.language; }
 
    Common::Platform getPlatform() const { return _version.platform; }
 
    enum {
        JAS_VERSION_OFFSET_DEMO = 0x119A8,
        JAS_VERSION_OFFSET_INTV = 0xCF8,
        JAS_VERSION_OFFSET_PC   = 0x12484
    };
 
protected:
 
    Common::File _resourceFile;
 
    int _currentResourceFileNum;
 
    DetectedGameVersion _version;
 
    uint32 _resourceEntries;
 
    ResourceEntry *_resourceTable;
 
    void checkJASVersion();
 
    ResourceEntry *resourceEntry(const char *filename) const;
 
    void seekResourceFile(int num, uint32 offset);
 
    void readTableFile(uint8 version, uint32 offset);
 
    void readTableEntries(Common::File *file);
 
    static const char *const _tableFilename;
 
    static ResourceEntry _resourceTablePEM10[];
};
 
} // End of namespace Queen
 
#endif