mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-21 17:29:39 +00:00
71 lines
1.8 KiB
C++
71 lines
1.8 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2002-2005 The ScummVM project
|
|
*
|
|
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* $Header$
|
|
*
|
|
*/
|
|
|
|
#ifndef SCUMM_UTIL_H
|
|
#define SCUMM_UTIL_H
|
|
|
|
#include "common/file.h"
|
|
|
|
namespace Scumm {
|
|
|
|
class ScummFile : public File {
|
|
private:
|
|
byte _encbyte;
|
|
uint32 _subFileStart;
|
|
uint32 _subFileLen;
|
|
public:
|
|
ScummFile();
|
|
void setEnc(byte value);
|
|
|
|
void setSubfileRange(uint32 start, uint32 len);
|
|
void resetSubfile();
|
|
|
|
bool open(const char *filename, AccessMode mode = kFileReadMode);
|
|
bool openSubFile(const char *filename);
|
|
|
|
bool eof();
|
|
uint32 pos();
|
|
uint32 size();
|
|
void seek(int32 offs, int whence = SEEK_SET);
|
|
uint32 read(void *ptr, uint32 size);
|
|
uint32 write(const void *ptr, uint32 size);
|
|
};
|
|
|
|
|
|
// This is a constant lookup table of reverse bit masks
|
|
extern const byte revBitMask[8];
|
|
|
|
/* Direction conversion functions (between old dir and new dir format) */
|
|
int newDirToOldDir(int dir);
|
|
int oldDirToNewDir(int dir);
|
|
|
|
int normalizeAngle(int angle);
|
|
int fromSimpleDir(int dirtype, int dir);
|
|
int toSimpleDir(int dirtype, int dir);
|
|
|
|
void checkRange(int max, int min, int no, const char *str);
|
|
|
|
const char *tag2str(uint32 tag);
|
|
|
|
} // End of namespace Scumm
|
|
|
|
#endif
|