/*
 * The internal definitions
 *
 * Copyright (C) 2010-2020, Joachim Metz <joachim.metz@gmail.com>
 *
 * Refer to AUTHORS for acknowledgements.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 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 Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#if !defined( _LIBQCOW_INTERNAL_DEFINITIONS_H )
#define _LIBQCOW_INTERNAL_DEFINITIONS_H

#include <common.h>
#include <byte_stream.h>

#define LIBQCOW_ENDIAN_BIG					_BYTE_STREAM_ENDIAN_BIG
#define LIBQCOW_ENDIAN_LITTLE					_BYTE_STREAM_ENDIAN_LITTLE

/* Define HAVE_LOCAL_LIBQCOW for local use of libqcow
 */
#if !defined( HAVE_LOCAL_LIBQCOW )
#include <libqcow/definitions.h>

/* The definitions in <libqcow/definitions.h> are copied here
 * for local use of libqcow
 */
#else
#define LIBQCOW_VERSION						20200927

/* The version string
 */
#define LIBQCOW_VERSION_STRING					"20200927"

/* The access flags definitions
 * bit 1        set to 1 for read access
 * bit 2        set to 1 for write access
 * bit 3-8      not used
 */
enum LIBQCOW_ACCESS_FLAGS
{
	LIBQCOW_ACCESS_FLAG_READ				= 0x01,
/* Reserved: not supported yet */
	LIBQCOW_ACCESS_FLAG_WRITE				= 0x02
};

/* The file access macros
 */
#define LIBQCOW_OPEN_READ					( LIBQCOW_ACCESS_FLAG_READ )
/* Reserved: not supported yet */
#define LIBQCOW_OPEN_WRITE					( LIBQCOW_ACCESS_FLAG_WRITE )
/* Reserved: not supported yet */
#define LIBQCOW_OPEN_READ_WRITE					( LIBQCOW_ACCESS_FLAG_READ | LIBQCOW_ACCESS_FLAG_WRITE )

/* The encryption method definitions
 */
enum LIBQCOW_ENCRYPTION_METHODS
{
	LIBQCOW_ENCRYPTION_METHOD_NONE				= 0,
	LIBQCOW_ENCRYPTION_METHOD_AES_128_CBC			= 1
};

#endif /* !defined( HAVE_LOCAL_LIBQCOW ) */

/* The compression methods definitions
 */
enum LIBQCOW_COMPRESSION_METHODS
{
	LIBQCOW_COMPRESSION_METHOD_NONE				= 0,
	LIBQCOW_COMPRESSION_METHOD_DEFLATE			= 1,
};

/* The compression level definitions
 */
enum LIBQCOW_COMPRESSION_LEVELS
{
	LIBQCOW_COMPRESSION_LEVEL_DEFAULT			= -1,
	LIBQCOW_COMPRESSION_LEVEL_NONE				= 0,
	LIBQCOW_COMPRESSION_LEVEL_FAST				= 1,
	LIBQCOW_COMPRESSION_LEVEL_BEST				= 2,
};

/* The maximum number of cache entries defintions
 */
#define LIBQCOW_MAXIMUM_CACHE_ENTRIES_LEVEL2_TABLES		64
#define LIBQCOW_MAXIMUM_CACHE_ENTRIES_CLUSTER_BLOCKS		128

#endif

