PdevFile.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2011 by Paul Demorest
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
#ifndef __PdevFile_h
#define __PdevFile_h
 
#include "dsp/File.h"
 
#define PDEV_HEADER_BYTES ((size_t)1024)
 
namespace dsp {
 
 
  class PdevFile : public File
  {
  public:
          
    PdevFile (const char* filename=0, const char* headername=0);
          
    ~PdevFile ();
          
    bool is_valid (const char* filename) const;
 
    bool swap_poln () const { return rawhdr[3] & 0x02; }
 
    bool swap_dim () const { return rawhdr[3] & 0x01; }
 
  protected:
 
    void open_file (const char* filename);
 
    void check_file_set ();
 
    int64_t fstat_file_ndat (uint64_t tailer_bytes=0);
 
    int64_t load_bytes (unsigned char *buffer, uint64_t nbytes);
 
    int64_t seek_bytes (uint64_t bytes);
 
    void parse_aoHdr ();
 
  private:
 
    unsigned int rawhdr[PDEV_HEADER_BYTES / 4];
 
    bool have_ascii_header;
 
    char basename[256];
 
    int curfile;
 
    int startfile;
 
    int endfile;
 
    std::vector<uint64_t> file_bytes;
 
    uint64_t total_bytes;
 
  };
}
 
#endif // !defined(__PdevFile_h)