mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-22 23:48:12 +00:00
324 lines
8.2 KiB
C
324 lines
8.2 KiB
C
/*
|
|
* This file is part of the Trezor project, https://trezor.io/
|
|
*
|
|
* Copyright (c) SatoshiLabs
|
|
*
|
|
* This program 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 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 General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <trezor_rtl.h>
|
|
|
|
#include "fonts.h"
|
|
#ifdef TRANSLATIONS
|
|
#include "librust_fonts.h"
|
|
#endif
|
|
|
|
#define UNICODE_BADCHAR 0xFFFD
|
|
|
|
int font_height(int font) {
|
|
switch (font) {
|
|
#ifdef TREZOR_FONT_NORMAL_ENABLE
|
|
case FONT_NORMAL:
|
|
return FONT_NORMAL_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
|
|
case FONT_DEMIBOLD:
|
|
return FONT_DEMIBOLD_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_ENABLE
|
|
case FONT_BOLD:
|
|
return FONT_BOLD_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
|
|
case FONT_NORMAL_UPPER:
|
|
return FONT_NORMAL_UPPER_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
|
|
case FONT_BOLD_UPPER:
|
|
return FONT_BOLD_UPPER_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_MONO_ENABLE
|
|
case FONT_MONO:
|
|
return FONT_MONO_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BIG_ENABLE
|
|
case FONT_BIG:
|
|
return FONT_BIG_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_SUB_ENABLE
|
|
case FONT_SUB:
|
|
return FONT_SUB_HEIGHT;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int font_max_height(int font) {
|
|
switch (font) {
|
|
#ifdef TREZOR_FONT_NORMAL_ENABLE
|
|
case FONT_NORMAL:
|
|
return FONT_NORMAL_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
|
|
case FONT_DEMIBOLD:
|
|
return FONT_DEMIBOLD_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_ENABLE
|
|
case FONT_BOLD:
|
|
return FONT_BOLD_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
|
|
case FONT_NORMAL_UPPER:
|
|
return FONT_NORMAL_UPPER_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
|
|
case FONT_BOLD_UPPER:
|
|
return FONT_BOLD_UPPER_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_MONO_ENABLE
|
|
case FONT_MONO:
|
|
return FONT_MONO_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BIG_ENABLE
|
|
case FONT_BIG:
|
|
return FONT_BIG_MAX_HEIGHT;
|
|
#endif
|
|
#ifdef TREZOR_FONT_SUB_ENABLE
|
|
case FONT_SUB:
|
|
return FONT_SUB_MAX_HEIGHT;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int font_baseline(int font) {
|
|
switch (font) {
|
|
#ifdef TREZOR_FONT_NORMAL_ENABLE
|
|
case FONT_NORMAL:
|
|
return FONT_NORMAL_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
|
|
case FONT_DEMIBOLD:
|
|
return FONT_DEMIBOLD_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_ENABLE
|
|
case FONT_BOLD:
|
|
return FONT_BOLD_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
|
|
case FONT_NORMAL_UPPER:
|
|
return FONT_NORMAL_UPPER_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
|
|
case FONT_BOLD_UPPER:
|
|
return FONT_BOLD_UPPER_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_MONO_ENABLE
|
|
case FONT_MONO:
|
|
return FONT_MONO_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_BIG_ENABLE
|
|
case FONT_BIG:
|
|
return FONT_BIG_BASELINE;
|
|
#endif
|
|
#ifdef TREZOR_FONT_SUB_ENABLE
|
|
case FONT_SUB:
|
|
return FONT_SUB_BASELINE;
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
font_glyph_iter_t font_glyph_iter_init(const int font, const uint8_t *text,
|
|
const int len) {
|
|
return (font_glyph_iter_t){
|
|
.font = font,
|
|
.text = text,
|
|
.remaining = len,
|
|
};
|
|
}
|
|
|
|
#define IS_UTF8_CONTINUE(c) (((c) & 0b11000000) == 0b10000000)
|
|
|
|
static uint16_t next_utf8_codepoint(font_glyph_iter_t *iter) {
|
|
uint16_t out;
|
|
assert(iter->remaining > 0);
|
|
// 1-byte UTF-8 character
|
|
if (iter->text[0] < 0x7f) {
|
|
out = iter->text[0];
|
|
++iter->text;
|
|
--iter->remaining;
|
|
return out;
|
|
}
|
|
// 2-byte UTF-8 character
|
|
if (iter->remaining >= 2 && ((iter->text[0] & 0b11100000) == 0b11000000) &&
|
|
IS_UTF8_CONTINUE(iter->text[1])) {
|
|
out = (((uint16_t)iter->text[0] & 0b00011111) << 6) |
|
|
(iter->text[1] & 0b00111111);
|
|
iter->text += 2;
|
|
iter->remaining -= 2;
|
|
return out;
|
|
}
|
|
// 3-byte UTF-8 character
|
|
if (iter->remaining >= 3 && ((iter->text[0] & 0b11110000) == 0b11100000) &&
|
|
IS_UTF8_CONTINUE(iter->text[1]) && IS_UTF8_CONTINUE(iter->text[2])) {
|
|
out = (((uint16_t)iter->text[0] & 0b00001111) << 12) |
|
|
(((uint16_t)iter->text[1] & 0b00111111) << 6) |
|
|
(iter->text[2] & 0b00111111);
|
|
iter->text += 3;
|
|
iter->remaining -= 3;
|
|
return out;
|
|
}
|
|
// 4-byte UTF-8 character
|
|
if (iter->remaining >= 4 && ((iter->text[0] & 0b11111000) == 0b11110000) &&
|
|
IS_UTF8_CONTINUE(iter->text[1]) && IS_UTF8_CONTINUE(iter->text[2]) &&
|
|
IS_UTF8_CONTINUE(iter->text[3])) {
|
|
// we use 16-bit codepoints, so we can't represent 4-byte UTF-8 characters
|
|
iter->text += 4;
|
|
iter->remaining -= 4;
|
|
return UNICODE_BADCHAR;
|
|
}
|
|
|
|
++iter->text;
|
|
--iter->remaining;
|
|
return UNICODE_BADCHAR;
|
|
}
|
|
|
|
bool font_next_glyph(font_glyph_iter_t *iter, const uint8_t **out) {
|
|
if (iter->remaining <= 0) {
|
|
return false;
|
|
}
|
|
uint16_t c = next_utf8_codepoint(iter);
|
|
*out = font_get_glyph(iter->font, c);
|
|
if (*out == NULL) {
|
|
// should not happen but ¯\_(ツ)_/¯
|
|
return font_next_glyph(iter, out);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
const uint8_t *font_nonprintable_glyph(int font) {
|
|
#define PASTER(s) s##_glyph_nonprintable
|
|
#define NONPRINTABLE_GLYPH(s) PASTER(s)
|
|
|
|
switch (font) {
|
|
#ifdef TREZOR_FONT_NORMAL_ENABLE
|
|
case FONT_NORMAL:
|
|
return NONPRINTABLE_GLYPH(FONT_NORMAL_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
|
|
case FONT_DEMIBOLD:
|
|
return NONPRINTABLE_GLYPH(FONT_DEMIBOLD_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_ENABLE
|
|
case FONT_BOLD:
|
|
return NONPRINTABLE_GLYPH(FONT_BOLD_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
|
|
case FONT_NORMAL_UPPER:
|
|
return NONPRINTABLE_GLYPH(FONT_NORMAL_UPPER_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
|
|
case FONT_BOLD_UPPER:
|
|
return NONPRINTABLE_GLYPH(FONT_BOLD_UPPER_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_MONO_ENABLE
|
|
case FONT_MONO:
|
|
return NONPRINTABLE_GLYPH(FONT_MONO_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_BIG_ENABLE
|
|
case FONT_BIG:
|
|
return NONPRINTABLE_GLYPH(FONT_BIG_DATA);
|
|
#endif
|
|
#ifdef TREZOR_FONT_SUB_ENABLE
|
|
case FONT_SUB:
|
|
return NONPRINTABLE_GLYPH(FONT_SUB_DATA);
|
|
#endif
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
const uint8_t *font_get_glyph(int font, uint16_t c) {
|
|
#ifdef TRANSLATIONS
|
|
// found UTF8 character
|
|
// it is not hardcoded in firmware fonts, it must be extracted from the
|
|
// embedded blob
|
|
if (c >= 0x7F) {
|
|
const uint8_t *g = get_utf8_glyph(c, font);
|
|
if (g != NULL) {
|
|
return g;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
// printable ASCII character
|
|
if (c >= ' ' && c < 0x7F) {
|
|
switch (font) {
|
|
#ifdef TREZOR_FONT_NORMAL_ENABLE
|
|
case FONT_NORMAL:
|
|
return FONT_NORMAL_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_DEMIBOLD_ENABLE
|
|
case FONT_DEMIBOLD:
|
|
return FONT_DEMIBOLD_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_ENABLE
|
|
case FONT_BOLD:
|
|
return FONT_BOLD_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_NORMAL_UPPER_ENABLE
|
|
case FONT_NORMAL_UPPER:
|
|
return FONT_NORMAL_UPPER_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_BOLD_UPPER_ENABLE
|
|
case FONT_BOLD_UPPER:
|
|
return FONT_BOLD_UPPER_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_MONO_ENABLE
|
|
case FONT_MONO:
|
|
return FONT_MONO_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_BIG_ENABLE
|
|
case FONT_BIG:
|
|
return FONT_BIG_DATA[c - ' '];
|
|
#endif
|
|
#ifdef TREZOR_FONT_SUB_ENABLE
|
|
case FONT_SUB:
|
|
return FONT_SUB_DATA[c - ' '];
|
|
#endif
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
return font_nonprintable_glyph(font);
|
|
}
|
|
|
|
// compute the width of the text (in pixels)
|
|
int font_text_width(int font, const char *text, int textlen) {
|
|
int width = 0;
|
|
// determine text length if not provided
|
|
if (textlen < 0) {
|
|
textlen = strlen(text);
|
|
}
|
|
font_glyph_iter_t iter = font_glyph_iter_init(font, (uint8_t *)text, textlen);
|
|
const uint8_t *g = NULL;
|
|
while (font_next_glyph(&iter, &g)) {
|
|
const uint8_t adv = g[2]; // advance
|
|
width += adv;
|
|
}
|
|
return width;
|
|
}
|