mirror of https://github.com/OpenRCT2/OpenRCT2.git
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/*****************************************************************************
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* Copyright (c) 2014 Ted John
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* OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
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*
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* This file is part of OpenRCT2.
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*
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* OpenRCT2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************/
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#ifndef _SAWYERCODING_H_
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#define _SAWYERCODING_H_
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#include "../common.h"
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typedef struct {
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uint8 encoding;
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uint32 length;
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} sawyercoding_chunk_header;
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enum {
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CHUNK_ENCODING_NONE,
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CHUNK_ENCODING_RLE,
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CHUNK_ENCODING_RLECOMPRESSED,
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CHUNK_ENCODING_ROTATE
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};
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enum {
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FILE_VERSION_MASK = (3 << 0),
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FILE_VERSION_RCT1 = (0 << 0),
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FILE_VERSION_RCT1_AA = (1 << 0),
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FILE_VERSION_RCT1_LL = (2 << 0),
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FILE_TYPE_MASK = (3 << 2),
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FILE_TYPE_TD4 = (0 << 2),
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FILE_TYPE_SV4 = (1 << 2),
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FILE_TYPE_SC4 = (2 << 2)
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};
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int sawyercoding_validate_checksum(FILE *file);
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uint32 sawyercoding_calculate_checksum(uint8* buffer, uint32 length);
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int sawyercoding_read_chunk(FILE *file, uint8 *buffer);
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int sawyercoding_write_chunk_buffer(uint8 *dst_file, uint8* buffer, sawyercoding_chunk_header chunkHeader);
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int sawyercoding_decode_sv4(char *src, char *dst, int length);
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int sawyercoding_decode_sc4(char *src, char *dst, int length);
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int sawyercoding_encode_sv4(char *src, char *dst, int length);
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int sawyercoding_decode_td6(char *src, char *dst, int length);
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int sawyercoding_detect_file_type(char *src, int length);
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#endif
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