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79 lines
2.7 KiB
79 lines
2.7 KiB
/**
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* Marlin 3D Printer Firmware
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* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program 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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*
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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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*
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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 <https://www.gnu.org/licenses/>.
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*
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*/
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/**
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* @file fontutils.h
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* @brief help functions for font and char
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* @author Yunhui Fu (yhfudev@gmail.com)
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* @version 1.0
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* @date 2016-08-19
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* @copyright GPL/BSD
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*/
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#pragma once
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#include <stdlib.h>
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#include <stdint.h> // uint32_t
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#include "../HAL/shared/Marduino.h"
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#include "../core/macros.h"
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#define MAX_UTF8_CHAR_SIZE 4
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// Use a longer character type (if needed) because wchar_t is only 16 bits wide
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#ifdef MAX_UTF8_CHAR_SIZE
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#if MAX_UTF8_CHAR_SIZE > 2
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typedef uint32_t lchar_t;
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#else
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typedef wchar_t lchar_t;
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#endif
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#else
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#define wchar_t uint32_t
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#endif
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// read a byte from ROM or RAM
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typedef uint8_t (*read_byte_cb_t)(const uint8_t * str);
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uint8_t read_byte_ram(const uint8_t *str);
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uint8_t read_byte_rom(const uint8_t *str);
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typedef uint16_t pixel_len_t;
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#define PIXEL_LEN_NOLIMIT ((pixel_len_t)(-1))
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/* Perform binary search */
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typedef int (* pf_bsearch_cb_comp_t)(void *userdata, size_t idx, void * data_pin);
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int pf_bsearch_r(void *userdata, size_t num_data, pf_bsearch_cb_comp_t cb_comp, void *data_pinpoint, size_t *ret_idx);
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/* Get the character, decoding multibyte UTF8 characters and returning a pointer to the start of the next UTF8 character */
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const uint8_t* get_utf8_value_cb(const uint8_t *pstart, read_byte_cb_t cb_read_byte, lchar_t &pval);
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inline const char* get_utf8_value_cb(const char *pstart, read_byte_cb_t cb_read_byte, lchar_t &pval) {
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return (const char *)get_utf8_value_cb((const uint8_t *)pstart, cb_read_byte, pval);
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}
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/* Returns length of string in CHARACTERS, NOT BYTES */
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uint8_t utf8_strlen(const char *pstart);
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uint8_t utf8_strlen_P(PGM_P pstart);
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inline uint8_t utf8_strlen(FSTR_P fstart) { return utf8_strlen_P(FTOP(fstart)); }
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/* Returns start byte position of desired char number */
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uint8_t utf8_byte_pos_by_char_num(const char *pstart, const uint8_t charnum);
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uint8_t utf8_byte_pos_by_char_num_P(PGM_P pstart, const uint8_t charnum);
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