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/**********************************************************************
*
* PostGIS - Spatial Types for PostgreSQL
* http://postgis.net
*
* PostGIS 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.
*
* PostGIS 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 PostGIS. If not, see <http://www.gnu.org/licenses/>.
*
**********************************************************************
*
* Copyright (C) 2014 Sandro Santilli <strk@kbt.io>
* Copyright (C) 2013 Nicklas Avén
*
**********************************************************************/
#ifndef _LIBLWGEOM_VARINT_H
#define _LIBLWGEOM_VARINT_H 1
#include <stdint.h>
#include <stdlib.h>
/* NEW SIGNATURES */
size_t varint_u32_encode_buf(uint32_t val, uint8_t *buf);
size_t varint_s32_encode_buf(int32_t val, uint8_t *buf);
size_t varint_u64_encode_buf(uint64_t val, uint8_t *buf);
size_t varint_s64_encode_buf(int64_t val, uint8_t *buf);
int64_t varint_s64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size);
uint64_t varint_u64_decode(const uint8_t *the_start, const uint8_t *the_end, size_t *size);
size_t varint_size(const uint8_t *the_start, const uint8_t *the_end);
/* Support from -INT{8,32,64}_MAX to INT{8,32,64}_MAX),
* e.g INT8_MIN is not supported in zigzag8 */
uint64_t zigzag64(int64_t val);
uint32_t zigzag32(int32_t val);
uint8_t zigzag8(int8_t val);
int64_t unzigzag64(uint64_t val);
int32_t unzigzag32(uint32_t val);
int8_t unzigzag8(uint8_t val);
#endif /* !defined _LIBLWGEOM_VARINT_H */
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