File: reader.h

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snes9x 1.39-7
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// Abstract the details of reading from zip files versus FILE *'s.

#ifndef _READER_H_
#define _READER_H_

#include <stdio.h>

#include "snes9x.h"

class Reader {
  public:
    Reader(void);
    virtual ~Reader();
    virtual int get_char() = 0;
    virtual char *gets(char *buf, size_t len) = 0;
    virtual size_t read(char *buf, size_t len) = 0;
};

class fReader : public Reader {
  public:
    fReader(STREAM fp);
    virtual ~fReader(void);
    virtual int get_char();
    virtual char *gets(char *buf, size_t len);
    virtual size_t read(char *buf, size_t len);
  private:
    STREAM fp;
};

#ifdef UNZIP_SUPPORT
#include "unzip.h"

#define unz_BUFFSIZ 1024

class unzReader : public Reader {
  public:
    unzReader(unzFile &v);
    virtual ~unzReader(void);
    virtual int get_char();
    virtual char *gets(char *buf, size_t len);
    virtual size_t read(char *buf, size_t len);
  private:
    unzFile file;
    char buffer[unz_BUFFSIZ];
    char *head;
    size_t numbytes;
};
#endif

#endif /* ndef _READER_H_ */