imagfile.h

3D Game Engine Design Source Code非常棒

#ifndef IMAGFILE_H
#define IMAGFILE_H

#include <iostream.h>
#include "element.h"
#include "fileform.h"

// pre-register file formats
#include "magic1.h"
#include "magic2.h"
#include "usrimage.h"

class mgcImageFile
{
protected:
	char* io_name;
	int io_dims;
	int* io_dim;
	int io_quantity;
	int io_file_order;
	int io_file_type;

	mgcFileFormat::RegisteredFileFormat io_rff;
public:
	// open existing file and read header
	mgcImageFile (char* fname, int* dims, int** dim, int* eltype);

	// create new file and write header and element block
	mgcImageFile (char* fname, int dims, const int* dim, int eltype,
		int fformat = -1);

	~mgcImageFile ();

	int ElementCount () { return io_quantity; }

	// data access
	int Get (int eltype, void* ptr, long offset = 0, int quantity = -1);
	int Put (int eltype, void* ptr, long offset = 0, int quantity = -1);

	// message access
	int Get (void* message);
	int Put (void* message);

// error handling
public:
	static int verbose;
	static unsigned error;
	static void Report (ostream& ostr);
private:
	static const unsigned file_open_failed;
	static const unsigned format_not_recognized;
	static const unsigned get_head_failed;
	static const unsigned put_head_failed;
	static const unsigned invalid_data_access;
	static const unsigned get_data_failed;
	static const unsigned put_data_failed;
	static const unsigned incompatible_types;
	static const char* message[8];
	static int Number (unsigned single_error);
	static void Report (unsigned single_error);
};

#endif