encode_method_1030.h

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#pragma once
 
/*
 * SPDX-License-Identifier: GPL-2.0-or-later
 *
 * (c) 2020 Juergen Borleis <projects@caps-printing.org>
 *
 * This library 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.
 */
 
#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
 
struct cm1030_line_header
{
    uint8_t edit_count; 
    uint8_t edits[0]; 
} __packed;
 
struct cm1030_block_header
{
    uint16_t line_cnt; 
    uint8_t data[0]; 
} __packed;
 
#define C1030_MAX_BYTES_IN_ONE_BLOCK 16350
 
#define MAX_LINE_LENGTH 1275
 
#define C1030_LINE_LENGTH (MAX_LINE_LENGTH + 16)
 
struct cm1030_line {
    uint8_t data[C1030_LINE_LENGTH]; 
    size_t idx; 
};
 
struct cm1030_band {
    uint8_t *out; 
    size_t avail_cnt; 
    size_t bused_cnt; 
    unsigned clines; 
    unsigned blines; 
};
#define C1030_MAX_LINES_IN_ONE_BAND 256
 
#define C1030_LINE_IS_EMPTY 0xff
#define C1030_LINE_IS_EQUAL 0x00
 
void hl_c1030_block_init(struct cm1030_band *block) __nonnull();
void hl_c1030_block_exit(struct cm1030_band *block) __nonnull();
void hl_c1030_line_edit(struct cm1030_line *c, size_t cnt, const uint8_t line[cnt] __nonstring, const uint8_t * __restrict last __nonstring) __nonnull((1,3));
int hl_c1030_block_line_add(struct cm1030_band *block, const struct cm1030_line *line, FILE *outstream) __nonnull();
int hl_c1030_block_flush(struct cm1030_band *band, FILE *outstream) __nonnull();
int hl_c1030_block_pad(struct cm1030_band *block, unsigned missing_line_cnt, FILE *outstream) __nonnull();