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105 lines
2.2 KiB
C++
105 lines
2.2 KiB
C++
/* ScummVM - Scumm Interpreter
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* Copyright (C) 2003 The ScummVM project
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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* $Header$
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*
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*/
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#ifndef SAGA_RESFILE_H
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#define SAGA_RESFILE_H
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/* The 'RSC' resource file format used by SAGA is quite simple.
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* At the end of the resource file is an 8 byte structure. The first
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* 32 bit value specifies the offset of the resource table, the
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* second specifies the number of entries in the resource table.
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* Each entry in the resource table is itself 32 bytes, the first
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* 32 bit value of which specifies the offset of the resource, the
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* second specifies the length of the resource.
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*/
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#include "common/file.h"
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class ResourceFile : public File {
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public:
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struct Resource {
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int32 res_offset;
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int32 res_len;
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};
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private:
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long _file_len;
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protected:
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enum ResourceConstants {
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RSC_TABLEINFO_SIZE = 8,
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RSC_TABLEENTRY_SIZE = 8
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};
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const char *_resDirectory;
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int32 _resTblOffset;
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int32 _resTblCt;
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bool _resTblLoaded;
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Resource *_resTbl;
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public:
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ResourceFile();
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virtual ~ResourceFile();
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bool open( const char *filename, const char *directory );
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void close();
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inline int16 readSint16LE() {
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return readUint16LE();
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}
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inline int32 readSint32LE() {
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return readUint32LE();
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}
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inline int16 readSint16BE() {
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return readUint16BE();
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}
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inline int32 readSint32BE() {
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return readUint32BE();
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}
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int32 getResourceCt();
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int32 getResourceOffset( int32 rn );
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int32 getResourceLen( int32 rn );
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bool loadResource( int32 rn, byte **res, int32 *res_len );
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void freeResource( byte *res );
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};
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#endif
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